From 4aa74249770e994be24546b0f4ec7509d6f1ce74 Mon Sep 17 00:00:00 2001 From: Tasia Iso Date: Fri, 22 Mar 2024 00:51:31 +0100 Subject: [PATCH] remove quickjs --- deps/quickjs/Changelog | 175 - deps/quickjs/LICENSE | 22 - deps/quickjs/Makefile | 487 - deps/quickjs/TODO | 67 - deps/quickjs/VERSION | 1 - deps/quickjs/cutils.c | 631 - deps/quickjs/cutils.h | 300 - deps/quickjs/doc/jsbignum.html | 734 - deps/quickjs/doc/jsbignum.pdf | Bin 153057 -> 0 bytes deps/quickjs/doc/jsbignum.texi | 589 - deps/quickjs/doc/quickjs.html | 1410 - deps/quickjs/doc/quickjs.pdf | Bin 167595 -> 0 bytes deps/quickjs/doc/quickjs.texi | 1120 - deps/quickjs/examples/fib.c | 72 - deps/quickjs/examples/fib_module.js | 10 - deps/quickjs/examples/hello.js | 1 - deps/quickjs/examples/hello_module.js | 6 - deps/quickjs/examples/pi_bigdecimal.js | 68 - deps/quickjs/examples/pi_bigfloat.js | 66 - deps/quickjs/examples/pi_bigint.js | 118 - deps/quickjs/examples/point.c | 151 - deps/quickjs/examples/test_fib.js | 6 - deps/quickjs/examples/test_point.js | 40 - deps/quickjs/libbf.c | 8473 --- deps/quickjs/libbf.h | 535 - deps/quickjs/libregexp-opcode.h | 57 - deps/quickjs/libregexp.c | 2529 - deps/quickjs/libregexp.h | 93 - deps/quickjs/libunicode-table.h | 4486 -- deps/quickjs/libunicode.c | 1788 - deps/quickjs/libunicode.h | 127 - deps/quickjs/list.h | 99 - deps/quickjs/qjs.c | 561 - deps/quickjs/qjsc.c | 761 - deps/quickjs/qjscalc.js | 2657 - deps/quickjs/quickjs-atom.h | 273 - deps/quickjs/quickjs-libc.c | 3999 -- deps/quickjs/quickjs-libc.h | 59 - deps/quickjs/quickjs-opcode.h | 372 - deps/quickjs/quickjs.c | 55546 -------------------- deps/quickjs/quickjs.h | 1060 - deps/quickjs/readme.txt | 1 - deps/quickjs/release.sh | 180 - deps/quickjs/repl.js | 1590 - deps/quickjs/run-test262.c | 2145 - deps/quickjs/test262.conf | 227 - deps/quickjs/test262_errors.txt | 8 - deps/quickjs/test262o.conf | 410 - deps/quickjs/test262o_errors.txt | 0 deps/quickjs/tests/bjson.c | 96 - deps/quickjs/tests/microbench.js | 1057 - deps/quickjs/tests/test262.patch | 71 - deps/quickjs/tests/test_bignum.js | 326 - deps/quickjs/tests/test_bjson.js | 191 - deps/quickjs/tests/test_builtin.js | 713 - deps/quickjs/tests/test_closure.js | 221 - deps/quickjs/tests/test_language.js | 606 - deps/quickjs/tests/test_loop.js | 392 - deps/quickjs/tests/test_op_overloading.js | 207 - deps/quickjs/tests/test_qjscalc.js | 256 - deps/quickjs/tests/test_std.js | 304 - deps/quickjs/tests/test_worker.js | 62 - deps/quickjs/tests/test_worker_module.js | 32 - deps/quickjs/unicode_download.sh | 19 - deps/quickjs/unicode_gen.c | 3145 -- deps/quickjs/unicode_gen_def.h | 291 - 66 files changed, 102099 deletions(-) delete mode 100644 deps/quickjs/Changelog delete mode 100644 deps/quickjs/LICENSE delete mode 100644 deps/quickjs/Makefile delete mode 100644 deps/quickjs/TODO delete mode 100644 deps/quickjs/VERSION delete mode 100644 deps/quickjs/cutils.c delete mode 100644 deps/quickjs/cutils.h delete mode 100644 deps/quickjs/doc/jsbignum.html delete mode 100644 deps/quickjs/doc/jsbignum.pdf delete mode 100644 deps/quickjs/doc/jsbignum.texi delete mode 100644 deps/quickjs/doc/quickjs.html delete mode 100644 deps/quickjs/doc/quickjs.pdf delete mode 100644 deps/quickjs/doc/quickjs.texi delete mode 100644 deps/quickjs/examples/fib.c delete mode 100644 deps/quickjs/examples/fib_module.js delete mode 100644 deps/quickjs/examples/hello.js delete mode 100644 deps/quickjs/examples/hello_module.js delete mode 100644 deps/quickjs/examples/pi_bigdecimal.js delete mode 100644 deps/quickjs/examples/pi_bigfloat.js delete mode 100644 deps/quickjs/examples/pi_bigint.js delete mode 100644 deps/quickjs/examples/point.c delete mode 100644 deps/quickjs/examples/test_fib.js delete mode 100644 deps/quickjs/examples/test_point.js delete mode 100644 deps/quickjs/libbf.c delete mode 100644 deps/quickjs/libbf.h delete mode 100644 deps/quickjs/libregexp-opcode.h delete mode 100644 deps/quickjs/libregexp.c delete mode 100644 deps/quickjs/libregexp.h delete mode 100644 deps/quickjs/libunicode-table.h delete mode 100644 deps/quickjs/libunicode.c delete mode 100644 deps/quickjs/libunicode.h delete mode 100644 deps/quickjs/list.h delete mode 100644 deps/quickjs/qjs.c delete mode 100644 deps/quickjs/qjsc.c delete mode 100644 deps/quickjs/qjscalc.js delete mode 100644 deps/quickjs/quickjs-atom.h delete mode 100644 deps/quickjs/quickjs-libc.c delete mode 100644 deps/quickjs/quickjs-libc.h delete mode 100644 deps/quickjs/quickjs-opcode.h delete mode 100644 deps/quickjs/quickjs.c delete mode 100644 deps/quickjs/quickjs.h delete mode 100644 deps/quickjs/readme.txt delete mode 100755 deps/quickjs/release.sh delete mode 100644 deps/quickjs/repl.js delete mode 100644 deps/quickjs/run-test262.c delete mode 100644 deps/quickjs/test262.conf delete mode 100644 deps/quickjs/test262_errors.txt delete mode 100644 deps/quickjs/test262o.conf delete mode 100644 deps/quickjs/test262o_errors.txt delete mode 100644 deps/quickjs/tests/bjson.c delete mode 100644 deps/quickjs/tests/microbench.js delete mode 100644 deps/quickjs/tests/test262.patch delete mode 100644 deps/quickjs/tests/test_bignum.js delete mode 100644 deps/quickjs/tests/test_bjson.js delete mode 100644 deps/quickjs/tests/test_builtin.js delete mode 100644 deps/quickjs/tests/test_closure.js delete mode 100644 deps/quickjs/tests/test_language.js delete mode 100644 deps/quickjs/tests/test_loop.js delete mode 100644 deps/quickjs/tests/test_op_overloading.js delete mode 100644 deps/quickjs/tests/test_qjscalc.js delete mode 100644 deps/quickjs/tests/test_std.js delete mode 100644 deps/quickjs/tests/test_worker.js delete mode 100644 deps/quickjs/tests/test_worker_module.js delete mode 100755 deps/quickjs/unicode_download.sh delete mode 100644 deps/quickjs/unicode_gen.c delete mode 100644 deps/quickjs/unicode_gen_def.h diff --git a/deps/quickjs/Changelog b/deps/quickjs/Changelog deleted file mode 100644 index 944d96ac..00000000 --- a/deps/quickjs/Changelog +++ /dev/null @@ -1,175 +0,0 @@ -2024-01-13: - -- top-level-await support in modules -- allow 'await' in the REPL -- added Array.prototype.{with,toReversed,toSpliced,toSorted} and -TypedArray.prototype.{with,toReversed,toSorted} -- added String.prototype.isWellFormed and String.prototype.toWellFormed -- added Object.groupBy and Map.groupBy -- added Promise.withResolvers -- class static block -- 'in' operator support for private fields -- optional chaining fixes -- added RegExp 'd' flag -- fixed RegExp zero length match logic -- fixed RegExp case insensitive flag -- added os.getpid() and os.now() -- added cosmopolitan build -- misc bug fixes - -2023-12-09: - -- added Object.hasOwn, {String|Array|TypedArray}.prototype.at, - {Array|TypedArray}.prototype.findLast{Index} -- BigInt support is enabled even if CONFIG_BIGNUM disabled -- updated to Unicode 15.0.0 -- misc bug fixes - -2021-03-27: - -- faster Array.prototype.push and Array.prototype.unshift -- added JS_UpdateStackTop() -- fixed Windows console -- misc bug fixes - -2020-11-08: - -- improved function parameter initializers -- added std.setenv(), std.unsetenv() and std.getenviron() -- added JS_EvalThis() -- misc bug fixes - -2020-09-06: - -- added logical assignment operators -- added IsHTMLDDA support -- faster for-of loops -- os.Worker now takes a module filename as parameter -- qjsc: added -D option to compile dynamically loaded modules or workers -- misc bug fixes - -2020-07-05: - -- modified JS_GetPrototype() to return a live value -- REPL: support unicode characters larger than 16 bits -- added os.Worker -- improved object serialization -- added std.parseExtJSON -- misc bug fixes - -2020-04-12: - -- added cross realm support -- added AggregateError and Promise.any -- added env, uid and gid options in os.exec() -- misc bug fixes - -2020-03-16: - -- reworked error handling in std and os libraries: suppressed I/O - exceptions in std FILE functions and return a positive errno value - when it is explicit -- output exception messages to stderr -- added std.loadFile(), std.strerror(), std.FILE.prototype.tello() -- added JS_GetRuntimeOpaque(), JS_SetRuntimeOpaque(), JS_NewUint32() -- updated to Unicode 13.0.0 -- misc bug fixes - -2020-01-19: - -- keep CONFIG_BIGNUM in the makefile -- added os.chdir() -- qjs: added -I option -- more memory checks in the bignum operations -- modified operator overloading semantics to be closer to the TC39 - proposal -- suppressed "use bigint" mode. Simplified "use math" mode -- BigDecimal: changed suffix from 'd' to 'm' -- misc bug fixes - -2020-01-05: - -- always compile the bignum code. Added '--bignum' option to qjs. -- added BigDecimal -- added String.prototype.replaceAll -- misc bug fixes - -2019-12-21: - -- added nullish coalescing operator (ES2020) -- added optional chaining (ES2020) -- removed recursions in garbage collector -- test stack overflow in the parser -- improved backtrace logic -- added JS_SetHostPromiseRejectionTracker() -- allow exotic constructors -- improved c++ compatibility -- misc bug fixes - -2019-10-27: - -- added example of C class in a module (examples/test_point.js) -- added JS_GetTypedArrayBuffer() -- misc bug fixes - -2019-09-18: - -- added os.exec and other system calls -- exported JS_ValueToAtom() -- qjsc: added 'qjsc_' prefix to the generated C identifiers -- added cross-compilation support -- misc bug fixes - -2019-09-01: - -- added globalThis -- documented JS_EVAL_FLAG_COMPILE_ONLY -- added import.meta.url and import.meta.main -- added 'debugger' statement -- misc bug fixes - -2019-08-18: - -- added os.realpath, os.getcwd, os.mkdir, os.stat, os.lstat, - os.readlink, os.readdir, os.utimes, std.popen -- module autodetection -- added import.meta -- misc bug fixes - -2019-08-10: - -- added public class fields and private class fields, methods and - accessors (TC39 proposal) -- changed JS_ToCStringLen() prototype -- qjsc: handle '-' in module names and modules with the same filename -- added std.urlGet -- exported JS_GetOwnPropertyNames() and JS_GetOwnProperty() -- exported some bigint C functions -- added support for eshost in run-test262 -- misc bug fixes - -2019-07-28: - -- added dynamic import -- added Promise.allSettled -- added String.prototype.matchAll -- added Object.fromEntries -- reduced number of ticks in await -- added BigInt support in Atomics -- exported JS_NewPromiseCapability() -- misc async function and async generator fixes -- enabled hashbang support by default - -2019-07-21: - -- updated test262 tests -- updated to Unicode version 12.1.0 -- fixed missing Date object in qjsc -- fixed multi-context creation -- misc ES2020 related fixes -- simplified power and division operators in bignum extension -- fixed several crash conditions - -2019-07-09: - -- first public release diff --git a/deps/quickjs/LICENSE b/deps/quickjs/LICENSE deleted file mode 100644 index 2c8fdeba..00000000 --- a/deps/quickjs/LICENSE +++ /dev/null @@ -1,22 +0,0 @@ -QuickJS Javascript Engine - -Copyright (c) 2017-2021 Fabrice Bellard -Copyright (c) 2017-2021 Charlie Gordon - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL -THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. diff --git a/deps/quickjs/Makefile b/deps/quickjs/Makefile deleted file mode 100644 index 57cdd7ef..00000000 --- a/deps/quickjs/Makefile +++ /dev/null @@ -1,487 +0,0 @@ -# -# QuickJS Javascript Engine -# -# Copyright (c) 2017-2021 Fabrice Bellard -# Copyright (c) 2017-2021 Charlie Gordon -# -# Permission is hereby granted, free of charge, to any person obtaining a copy -# of this software and associated documentation files (the "Software"), to deal -# in the Software without restriction, including without limitation the rights -# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -# copies of the Software, and to permit persons to whom the Software is -# furnished to do so, subject to the following conditions: -# -# The above copyright notice and this permission notice shall be included in -# all copies or substantial portions of the Software. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL -# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -# THE SOFTWARE. - -ifeq ($(shell uname -s),Darwin) -CONFIG_DARWIN=y -endif -# Windows cross compilation from Linux -#CONFIG_WIN32=y -# use link time optimization (smaller and faster executables but slower build) -CONFIG_LTO=y -# consider warnings as errors (for development) -#CONFIG_WERROR=y -# force 32 bit build for some utilities -#CONFIG_M32=y -# cosmopolitan build (see https://github.com/jart/cosmopolitan) -#CONFIG_COSMO=y - -# installation directory -PREFIX?=/usr/local - -# use the gprof profiler -#CONFIG_PROFILE=y -# use address sanitizer -#CONFIG_ASAN=y -# include the code for BigFloat/BigDecimal, math mode and faster large integers -CONFIG_BIGNUM=y - -OBJDIR=.obj - -ifdef CONFIG_DARWIN -# use clang instead of gcc -CONFIG_CLANG=y -CONFIG_DEFAULT_AR=y -endif - -ifdef CONFIG_WIN32 - ifdef CONFIG_M32 - CROSS_PREFIX?=i686-w64-mingw32- - else - CROSS_PREFIX?=x86_64-w64-mingw32- - endif - EXE=.exe -else - CROSS_PREFIX?= - EXE= -endif - -ifdef CONFIG_CLANG - HOST_CC=clang - CC=$(CROSS_PREFIX)clang - CFLAGS+=-g -Wall -MMD -MF $(OBJDIR)/$(@F).d - CFLAGS += -Wextra - CFLAGS += -Wno-sign-compare - CFLAGS += -Wno-missing-field-initializers - CFLAGS += -Wundef -Wuninitialized - CFLAGS += -Wunused -Wno-unused-parameter - CFLAGS += -Wwrite-strings - CFLAGS += -Wchar-subscripts -funsigned-char - CFLAGS += -MMD -MF $(OBJDIR)/$(@F).d - ifdef CONFIG_DEFAULT_AR - AR=$(CROSS_PREFIX)ar - else - ifdef CONFIG_LTO - AR=$(CROSS_PREFIX)llvm-ar - else - AR=$(CROSS_PREFIX)ar - endif - endif -else ifdef CONFIG_COSMO - CONFIG_LTO= - HOST_CC=gcc - CC=cosmocc - # cosmocc does not correct support -MF - CFLAGS=-g -Wall #-MMD -MF $(OBJDIR)/$(@F).d - CFLAGS += -Wno-array-bounds -Wno-format-truncation - AR=cosmoar -else - HOST_CC=gcc - CC=$(CROSS_PREFIX)gcc - CFLAGS+=-g -Wall -MMD -MF $(OBJDIR)/$(@F).d - CFLAGS += -Wno-array-bounds -Wno-format-truncation - ifdef CONFIG_LTO - AR=$(CROSS_PREFIX)gcc-ar - else - AR=$(CROSS_PREFIX)ar - endif -endif -STRIP=$(CROSS_PREFIX)strip -CFLAGS+=-fwrapv # ensure that signed overflows behave as expected -ifdef CONFIG_WERROR -CFLAGS+=-Werror -endif -DEFINES:=-D_GNU_SOURCE -DCONFIG_VERSION=\"$(shell cat VERSION)\" -ifdef CONFIG_BIGNUM -DEFINES+=-DCONFIG_BIGNUM -endif -ifdef CONFIG_WIN32 -DEFINES+=-D__USE_MINGW_ANSI_STDIO # for standard snprintf behavior -endif - -CFLAGS+=$(DEFINES) -CFLAGS_DEBUG=$(CFLAGS) -O0 -CFLAGS_SMALL=$(CFLAGS) -Os -CFLAGS_OPT=$(CFLAGS) -O2 -CFLAGS_NOLTO:=$(CFLAGS_OPT) -ifdef CONFIG_COSMO -LDFLAGS+=-s # better to strip by default -else -LDFLAGS+=-g -endif -ifdef CONFIG_LTO -CFLAGS_SMALL+=-flto -CFLAGS_OPT+=-flto -LDFLAGS+=-flto -endif -ifdef CONFIG_PROFILE -CFLAGS+=-p -LDFLAGS+=-p -endif -ifdef CONFIG_ASAN -CFLAGS+=-fsanitize=address -fno-omit-frame-pointer -LDFLAGS+=-fsanitize=address -fno-omit-frame-pointer -endif -ifdef CONFIG_WIN32 -LDEXPORT= -else -LDEXPORT=-rdynamic -endif - -ifndef CONFIG_COSMO -ifndef CONFIG_DARWIN -CONFIG_SHARED_LIBS=y # building shared libraries is supported -endif -endif - -PROGS=qjs$(EXE) qjsc$(EXE) run-test262 -ifneq ($(CROSS_PREFIX),) -QJSC_CC=gcc -QJSC=./host-qjsc -PROGS+=$(QJSC) -else -QJSC_CC=$(CC) -QJSC=./qjsc$(EXE) -endif -ifndef CONFIG_WIN32 -PROGS+=qjscalc -endif -ifdef CONFIG_M32 -PROGS+=qjs32 qjs32_s -endif -PROGS+=libquickjs.a -ifdef CONFIG_LTO -PROGS+=libquickjs.lto.a -endif - -# examples -ifeq ($(CROSS_PREFIX),) -PROGS+=examples/hello -ifndef CONFIG_ASAN -PROGS+=examples/hello_module -endif -ifdef CONFIG_SHARED_LIBS -PROGS+=examples/test_fib examples/fib.so examples/point.so -endif -endif - -all: $(OBJDIR) $(OBJDIR)/quickjs.check.o $(OBJDIR)/qjs.check.o $(PROGS) - -QJS_LIB_OBJS=$(OBJDIR)/quickjs.o $(OBJDIR)/libregexp.o $(OBJDIR)/libunicode.o $(OBJDIR)/cutils.o $(OBJDIR)/quickjs-libc.o $(OBJDIR)/libbf.o - -QJS_OBJS=$(OBJDIR)/qjs.o $(OBJDIR)/repl.o $(QJS_LIB_OBJS) -ifdef CONFIG_BIGNUM -QJS_OBJS+=$(OBJDIR)/qjscalc.o -endif - -HOST_LIBS=-lm -ldl -lpthread -LIBS=-lm -ifndef CONFIG_WIN32 -LIBS+=-ldl -lpthread -endif -LIBS+=$(EXTRA_LIBS) - -$(OBJDIR): - mkdir -p $(OBJDIR) $(OBJDIR)/examples $(OBJDIR)/tests - -qjs$(EXE): $(QJS_OBJS) - $(CC) $(LDFLAGS) $(LDEXPORT) -o $@ $^ $(LIBS) - -qjs-debug$(EXE): $(patsubst %.o, %.debug.o, $(QJS_OBJS)) - $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) - -qjsc$(EXE): $(OBJDIR)/qjsc.o $(QJS_LIB_OBJS) - $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) - -ifneq ($(CROSS_PREFIX),) - -$(QJSC): $(OBJDIR)/qjsc.host.o \ - $(patsubst %.o, %.host.o, $(QJS_LIB_OBJS)) - $(HOST_CC) $(LDFLAGS) -o $@ $^ $(HOST_LIBS) - -endif #CROSS_PREFIX - -QJSC_DEFINES:=-DCONFIG_CC=\"$(QJSC_CC)\" -DCONFIG_PREFIX=\"$(PREFIX)\" -ifdef CONFIG_LTO -QJSC_DEFINES+=-DCONFIG_LTO -endif -QJSC_HOST_DEFINES:=-DCONFIG_CC=\"$(HOST_CC)\" -DCONFIG_PREFIX=\"$(PREFIX)\" - -$(OBJDIR)/qjsc.o: CFLAGS+=$(QJSC_DEFINES) -$(OBJDIR)/qjsc.host.o: CFLAGS+=$(QJSC_HOST_DEFINES) - -qjs32: $(patsubst %.o, %.m32.o, $(QJS_OBJS)) - $(CC) -m32 $(LDFLAGS) $(LDEXPORT) -o $@ $^ $(LIBS) - -qjs32_s: $(patsubst %.o, %.m32s.o, $(QJS_OBJS)) - $(CC) -m32 $(LDFLAGS) -o $@ $^ $(LIBS) - @size $@ - -qjscalc: qjs - ln -sf $< $@ - -ifdef CONFIG_LTO -LTOEXT=.lto -else -LTOEXT= -endif - -libquickjs$(LTOEXT).a: $(QJS_LIB_OBJS) - $(AR) rcs $@ $^ - -ifdef CONFIG_LTO -libquickjs.a: $(patsubst %.o, %.nolto.o, $(QJS_LIB_OBJS)) - $(AR) rcs $@ $^ -endif # CONFIG_LTO - -repl.c: $(QJSC) repl.js - $(QJSC) -c -o $@ -m repl.js - -qjscalc.c: $(QJSC) qjscalc.js - $(QJSC) -fbignum -c -o $@ qjscalc.js - -ifneq ($(wildcard unicode/UnicodeData.txt),) -$(OBJDIR)/libunicode.o $(OBJDIR)/libunicode.m32.o $(OBJDIR)/libunicode.m32s.o \ - $(OBJDIR)/libunicode.nolto.o: libunicode-table.h - -libunicode-table.h: unicode_gen - ./unicode_gen unicode $@ -endif - -run-test262: $(OBJDIR)/run-test262.o $(QJS_LIB_OBJS) - $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) - -run-test262-debug: $(patsubst %.o, %.debug.o, $(OBJDIR)/run-test262.o $(QJS_LIB_OBJS)) - $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) - -run-test262-32: $(patsubst %.o, %.m32.o, $(OBJDIR)/run-test262.o $(QJS_LIB_OBJS)) - $(CC) -m32 $(LDFLAGS) -o $@ $^ $(LIBS) - -# object suffix order: nolto, [m32|m32s] - -$(OBJDIR)/%.o: %.c | $(OBJDIR) - $(CC) $(CFLAGS_OPT) -c -o $@ $< - -$(OBJDIR)/%.host.o: %.c | $(OBJDIR) - $(HOST_CC) $(CFLAGS_OPT) -c -o $@ $< - -$(OBJDIR)/%.pic.o: %.c | $(OBJDIR) - $(CC) $(CFLAGS_OPT) -fPIC -DJS_SHARED_LIBRARY -c -o $@ $< - -$(OBJDIR)/%.nolto.o: %.c | $(OBJDIR) - $(CC) $(CFLAGS_NOLTO) -c -o $@ $< - -$(OBJDIR)/%.m32.o: %.c | $(OBJDIR) - $(CC) -m32 $(CFLAGS_OPT) -c -o $@ $< - -$(OBJDIR)/%.m32s.o: %.c | $(OBJDIR) - $(CC) -m32 $(CFLAGS_SMALL) -c -o $@ $< - -$(OBJDIR)/%.debug.o: %.c | $(OBJDIR) - $(CC) $(CFLAGS_DEBUG) -c -o $@ $< - -$(OBJDIR)/%.check.o: %.c | $(OBJDIR) - $(CC) $(CFLAGS) -DCONFIG_CHECK_JSVALUE -c -o $@ $< - -regexp_test: libregexp.c libunicode.c cutils.c - $(CC) $(LDFLAGS) $(CFLAGS) -DTEST -o $@ libregexp.c libunicode.c cutils.c $(LIBS) - -unicode_gen: $(OBJDIR)/unicode_gen.host.o $(OBJDIR)/cutils.host.o libunicode.c unicode_gen_def.h - $(HOST_CC) $(LDFLAGS) $(CFLAGS) -o $@ $(OBJDIR)/unicode_gen.host.o $(OBJDIR)/cutils.host.o - -clean: - rm -f repl.c qjscalc.c out.c - rm -f *.a *.o *.d *~ unicode_gen regexp_test $(PROGS) - rm -f hello.c test_fib.c - rm -f examples/*.so tests/*.so - rm -rf $(OBJDIR)/ *.dSYM/ qjs-debug - rm -rf run-test262-debug run-test262-32 - -install: all - mkdir -p "$(DESTDIR)$(PREFIX)/bin" - $(STRIP) qjs qjsc - install -m755 qjs qjsc "$(DESTDIR)$(PREFIX)/bin" - ln -sf qjs "$(DESTDIR)$(PREFIX)/bin/qjscalc" - mkdir -p "$(DESTDIR)$(PREFIX)/lib/quickjs" - install -m644 libquickjs.a "$(DESTDIR)$(PREFIX)/lib/quickjs" -ifdef CONFIG_LTO - install -m644 libquickjs.lto.a "$(DESTDIR)$(PREFIX)/lib/quickjs" -endif - mkdir -p "$(DESTDIR)$(PREFIX)/include/quickjs" - install -m644 quickjs.h quickjs-libc.h "$(DESTDIR)$(PREFIX)/include/quickjs" - -############################################################################### -# examples - -# example of static JS compilation -HELLO_SRCS=examples/hello.js -HELLO_OPTS=-fno-string-normalize -fno-map -fno-promise -fno-typedarray \ - -fno-typedarray -fno-regexp -fno-json -fno-eval -fno-proxy \ - -fno-date -fno-module-loader -fno-bigint - -hello.c: $(QJSC) $(HELLO_SRCS) - $(QJSC) -e $(HELLO_OPTS) -o $@ $(HELLO_SRCS) - -ifdef CONFIG_M32 -examples/hello: $(OBJDIR)/hello.m32s.o $(patsubst %.o, %.m32s.o, $(QJS_LIB_OBJS)) - $(CC) -m32 $(LDFLAGS) -o $@ $^ $(LIBS) -else -examples/hello: $(OBJDIR)/hello.o $(QJS_LIB_OBJS) - $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) -endif - -# example of static JS compilation with modules -HELLO_MODULE_SRCS=examples/hello_module.js -HELLO_MODULE_OPTS=-fno-string-normalize -fno-map -fno-promise -fno-typedarray \ - -fno-typedarray -fno-regexp -fno-json -fno-eval -fno-proxy \ - -fno-date -m -examples/hello_module: $(QJSC) libquickjs$(LTOEXT).a $(HELLO_MODULE_SRCS) - $(QJSC) $(HELLO_MODULE_OPTS) -o $@ $(HELLO_MODULE_SRCS) - -# use of an external C module (static compilation) - -test_fib.c: $(QJSC) examples/test_fib.js - $(QJSC) -e -M examples/fib.so,fib -m -o $@ examples/test_fib.js - -examples/test_fib: $(OBJDIR)/test_fib.o $(OBJDIR)/examples/fib.o libquickjs$(LTOEXT).a - $(CC) $(LDFLAGS) -o $@ $^ $(LIBS) - -examples/fib.so: $(OBJDIR)/examples/fib.pic.o - $(CC) $(LDFLAGS) -shared -o $@ $^ - -examples/point.so: $(OBJDIR)/examples/point.pic.o - $(CC) $(LDFLAGS) -shared -o $@ $^ - -############################################################################### -# documentation - -DOCS=doc/quickjs.pdf doc/quickjs.html doc/jsbignum.pdf doc/jsbignum.html - -build_doc: $(DOCS) - -clean_doc: - rm -f $(DOCS) - -doc/%.pdf: doc/%.texi - texi2pdf --clean -o $@ -q $< - -doc/%.html.pre: doc/%.texi - makeinfo --html --no-headers --no-split --number-sections -o $@ $< - -doc/%.html: doc/%.html.pre - sed -e 's||\n|' < $< > $@ - -############################################################################### -# tests - -ifdef CONFIG_SHARED_LIBS -test: tests/bjson.so examples/point.so -endif -ifdef CONFIG_M32 -test: qjs32 -endif - -test: qjs - ./qjs tests/test_closure.js - ./qjs tests/test_language.js - ./qjs tests/test_builtin.js - ./qjs tests/test_loop.js - ./qjs tests/test_std.js - ./qjs tests/test_worker.js -ifdef CONFIG_SHARED_LIBS -ifdef CONFIG_BIGNUM - ./qjs --bignum tests/test_bjson.js -else - ./qjs tests/test_bjson.js -endif - ./qjs examples/test_point.js -endif -ifdef CONFIG_BIGNUM - ./qjs --bignum tests/test_op_overloading.js - ./qjs --bignum tests/test_bignum.js - ./qjs --qjscalc tests/test_qjscalc.js -endif -ifdef CONFIG_M32 - ./qjs32 tests/test_closure.js - ./qjs32 tests/test_language.js - ./qjs32 tests/test_builtin.js - ./qjs32 tests/test_loop.js - ./qjs32 tests/test_std.js - ./qjs32 tests/test_worker.js -ifdef CONFIG_BIGNUM - ./qjs32 --bignum tests/test_op_overloading.js - ./qjs32 --bignum tests/test_bignum.js - ./qjs32 --qjscalc tests/test_qjscalc.js -endif -endif - -stats: qjs qjs32 - ./qjs -qd - ./qjs32 -qd - -microbench: qjs - ./qjs tests/microbench.js - -microbench-32: qjs32 - ./qjs32 tests/microbench.js - -# ES5 tests (obsolete) -test2o: run-test262 - time ./run-test262 -m -c test262o.conf - -test2o-32: run-test262-32 - time ./run-test262-32 -m -c test262o.conf - -test2o-update: run-test262 - ./run-test262 -u -c test262o.conf - -# Test262 tests -test2-default: run-test262 - time ./run-test262 -m -c test262.conf - -test2: run-test262 - time ./run-test262 -m -c test262.conf -a - -test2-32: run-test262-32 - time ./run-test262-32 -m -c test262.conf -a - -test2-update: run-test262 - ./run-test262 -u -c test262.conf -a - -test2-check: run-test262 - time ./run-test262 -m -c test262.conf -E -a - -testall: all test microbench test2o test2 - -testall-32: all test-32 microbench-32 test2o-32 test2-32 - -testall-complete: testall testall-32 - -bench-v8: qjs - make -C tests/bench-v8 - ./qjs -d tests/bench-v8/combined.js - -tests/bjson.so: $(OBJDIR)/tests/bjson.pic.o - $(CC) $(LDFLAGS) -shared -o $@ $^ $(LIBS) - --include $(wildcard $(OBJDIR)/*.d) diff --git a/deps/quickjs/TODO b/deps/quickjs/TODO deleted file mode 100644 index bbd1a450..00000000 --- a/deps/quickjs/TODO +++ /dev/null @@ -1,67 +0,0 @@ -Misc ideas: -- use custom printf to avoid compatibility issues with floating point numbers -- consistent naming for preprocessor defines -- unify coding style and naming conventions -- use names from the ECMA spec in library implementation -- use byte code emitters with typed arguments (for clarity) -- use 2 bytecode DynBufs in JSFunctionDef, one for reading, one for writing - and use the same wrappers in all phases -- use more generic method for line numbers in resolve_variables and resolve_labels -- use custom timezone support to avoid C library compatibility issues - -Memory: -- use memory pools for objects, etc? -- test border cases for max number of atoms, object properties, string length -- add emergency malloc mode for out of memory exceptions. -- test all DynBuf memory errors -- test all js_realloc memory errors -- improve JS_ComputeMemoryUsage() with more info - -Built-in standard library: -- BSD sockets -- modules: use realpath in module name normalizer and put it in quickjs-libc -- modules: if no ".", use a well known module loading path ? -- get rid of __loadScript, use more common name - -REPL: -- debugger -- readline: support MS Windows terminal -- readline: handle dynamic terminal resizing -- readline: handle double width unicode characters -- multiline editing -- runtime object and function inspectors -- interactive object browser -- use more generic approach to display evaluation results -- improve directive handling: dispatch, colorize, completion... -- save history -- close all predefined methods in repl.js and jscalc.js - -Optimization ideas: -- 64-bit atoms in 64-bit mode ? -- 64-bit small bigint in 64-bit mode ? -- reuse stack slots for disjoint scopes, if strip -- add heuristic to avoid some cycles in closures -- small String (0-2 charcodes) with immediate storage -- perform static string concatenation at compile time -- optimize string concatenation with ropes or miniropes? -- add implicit numeric strings for Uint32 numbers? -- optimize `s += a + b`, `s += a.b` and similar simple expressions -- ensure string canonical representation and optimise comparisons and hashes? -- remove JSObject.first_weak_ref, use bit+context based hashed array for weak references -- property access optimization on the global object, functions, - prototypes and special non extensible objects. -- create object literals with the correct length by backpatching length argument -- remove redundant set_loc_uninitialized/check_uninitialized opcodes -- peephole optim: push_atom_value, to_propkey -> push_atom_value -- peephole optim: put_loc x, get_loc_check x -> set_loc x -- convert slow array to fast array when all properties != length are numeric -- optimize destructuring assignments for global and local variables -- implement some form of tail-call-optimization -- optimize OP_apply -- optimize f(...b) - -Test262o: 0/11262 errors, 463 excluded -Test262o commit: 7da91bceb9ce7613f87db47ddd1292a2dda58b42 (es5-tests branch) - -Result: 10/76947 errors, 1497 excluded, 8117 skipped -Test262 commit: 6cbb6da9473c56d95358d8e679c5a6d2b4574efb diff --git a/deps/quickjs/VERSION b/deps/quickjs/VERSION deleted file mode 100644 index e89de35f..00000000 --- a/deps/quickjs/VERSION +++ /dev/null @@ -1 +0,0 @@ -2024-01-13 diff --git a/deps/quickjs/cutils.c b/deps/quickjs/cutils.c deleted file mode 100644 index a02fb768..00000000 --- a/deps/quickjs/cutils.c +++ /dev/null @@ -1,631 +0,0 @@ -/* - * C utilities - * - * Copyright (c) 2017 Fabrice Bellard - * Copyright (c) 2018 Charlie Gordon - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include - -#include "cutils.h" - -void pstrcpy(char *buf, int buf_size, const char *str) -{ - int c; - char *q = buf; - - if (buf_size <= 0) - return; - - for(;;) { - c = *str++; - if (c == 0 || q >= buf + buf_size - 1) - break; - *q++ = c; - } - *q = '\0'; -} - -/* strcat and truncate. */ -char *pstrcat(char *buf, int buf_size, const char *s) -{ - int len; - len = strlen(buf); - if (len < buf_size) - pstrcpy(buf + len, buf_size - len, s); - return buf; -} - -int strstart(const char *str, const char *val, const char **ptr) -{ - const char *p, *q; - p = str; - q = val; - while (*q != '\0') { - if (*p != *q) - return 0; - p++; - q++; - } - if (ptr) - *ptr = p; - return 1; -} - -int has_suffix(const char *str, const char *suffix) -{ - size_t len = strlen(str); - size_t slen = strlen(suffix); - return (len >= slen && !memcmp(str + len - slen, suffix, slen)); -} - -/* Dynamic buffer package */ - -static void *dbuf_default_realloc(void *opaque, void *ptr, size_t size) -{ - return realloc(ptr, size); -} - -void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func) -{ - memset(s, 0, sizeof(*s)); - if (!realloc_func) - realloc_func = dbuf_default_realloc; - s->opaque = opaque; - s->realloc_func = realloc_func; -} - -void dbuf_init(DynBuf *s) -{ - dbuf_init2(s, NULL, NULL); -} - -/* return < 0 if error */ -int dbuf_realloc(DynBuf *s, size_t new_size) -{ - size_t size; - uint8_t *new_buf; - if (new_size > s->allocated_size) { - if (s->error) - return -1; - size = s->allocated_size * 3 / 2; - if (size > new_size) - new_size = size; - new_buf = s->realloc_func(s->opaque, s->buf, new_size); - if (!new_buf) { - s->error = TRUE; - return -1; - } - s->buf = new_buf; - s->allocated_size = new_size; - } - return 0; -} - -int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len) -{ - size_t end; - end = offset + len; - if (dbuf_realloc(s, end)) - return -1; - memcpy(s->buf + offset, data, len); - if (end > s->size) - s->size = end; - return 0; -} - -int dbuf_put(DynBuf *s, const uint8_t *data, size_t len) -{ - if (unlikely((s->size + len) > s->allocated_size)) { - if (dbuf_realloc(s, s->size + len)) - return -1; - } - memcpy(s->buf + s->size, data, len); - s->size += len; - return 0; -} - -int dbuf_put_self(DynBuf *s, size_t offset, size_t len) -{ - if (unlikely((s->size + len) > s->allocated_size)) { - if (dbuf_realloc(s, s->size + len)) - return -1; - } - memcpy(s->buf + s->size, s->buf + offset, len); - s->size += len; - return 0; -} - -int dbuf_putc(DynBuf *s, uint8_t c) -{ - return dbuf_put(s, &c, 1); -} - -int dbuf_putstr(DynBuf *s, const char *str) -{ - return dbuf_put(s, (const uint8_t *)str, strlen(str)); -} - -int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s, - const char *fmt, ...) -{ - va_list ap; - char buf[128]; - int len; - - va_start(ap, fmt); - len = vsnprintf(buf, sizeof(buf), fmt, ap); - va_end(ap); - if (len < sizeof(buf)) { - /* fast case */ - return dbuf_put(s, (uint8_t *)buf, len); - } else { - if (dbuf_realloc(s, s->size + len + 1)) - return -1; - va_start(ap, fmt); - vsnprintf((char *)(s->buf + s->size), s->allocated_size - s->size, - fmt, ap); - va_end(ap); - s->size += len; - } - return 0; -} - -void dbuf_free(DynBuf *s) -{ - /* we test s->buf as a fail safe to avoid crashing if dbuf_free() - is called twice */ - if (s->buf) { - s->realloc_func(s->opaque, s->buf, 0); - } - memset(s, 0, sizeof(*s)); -} - -/* Note: at most 31 bits are encoded. At most UTF8_CHAR_LEN_MAX bytes - are output. */ -int unicode_to_utf8(uint8_t *buf, unsigned int c) -{ - uint8_t *q = buf; - - if (c < 0x80) { - *q++ = c; - } else { - if (c < 0x800) { - *q++ = (c >> 6) | 0xc0; - } else { - if (c < 0x10000) { - *q++ = (c >> 12) | 0xe0; - } else { - if (c < 0x00200000) { - *q++ = (c >> 18) | 0xf0; - } else { - if (c < 0x04000000) { - *q++ = (c >> 24) | 0xf8; - } else if (c < 0x80000000) { - *q++ = (c >> 30) | 0xfc; - *q++ = ((c >> 24) & 0x3f) | 0x80; - } else { - return 0; - } - *q++ = ((c >> 18) & 0x3f) | 0x80; - } - *q++ = ((c >> 12) & 0x3f) | 0x80; - } - *q++ = ((c >> 6) & 0x3f) | 0x80; - } - *q++ = (c & 0x3f) | 0x80; - } - return q - buf; -} - -static const unsigned int utf8_min_code[5] = { - 0x80, 0x800, 0x10000, 0x00200000, 0x04000000, -}; - -static const unsigned char utf8_first_code_mask[5] = { - 0x1f, 0xf, 0x7, 0x3, 0x1, -}; - -/* return -1 if error. *pp is not updated in this case. max_len must - be >= 1. The maximum length for a UTF8 byte sequence is 6 bytes. */ -int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp) -{ - int l, c, b, i; - - c = *p++; - if (c < 0x80) { - *pp = p; - return c; - } - switch(c) { - case 0xc0: case 0xc1: case 0xc2: case 0xc3: - case 0xc4: case 0xc5: case 0xc6: case 0xc7: - case 0xc8: case 0xc9: case 0xca: case 0xcb: - case 0xcc: case 0xcd: case 0xce: case 0xcf: - case 0xd0: case 0xd1: case 0xd2: case 0xd3: - case 0xd4: case 0xd5: case 0xd6: case 0xd7: - case 0xd8: case 0xd9: case 0xda: case 0xdb: - case 0xdc: case 0xdd: case 0xde: case 0xdf: - l = 1; - break; - case 0xe0: case 0xe1: case 0xe2: case 0xe3: - case 0xe4: case 0xe5: case 0xe6: case 0xe7: - case 0xe8: case 0xe9: case 0xea: case 0xeb: - case 0xec: case 0xed: case 0xee: case 0xef: - l = 2; - break; - case 0xf0: case 0xf1: case 0xf2: case 0xf3: - case 0xf4: case 0xf5: case 0xf6: case 0xf7: - l = 3; - break; - case 0xf8: case 0xf9: case 0xfa: case 0xfb: - l = 4; - break; - case 0xfc: case 0xfd: - l = 5; - break; - default: - return -1; - } - /* check that we have enough characters */ - if (l > (max_len - 1)) - return -1; - c &= utf8_first_code_mask[l - 1]; - for(i = 0; i < l; i++) { - b = *p++; - if (b < 0x80 || b >= 0xc0) - return -1; - c = (c << 6) | (b & 0x3f); - } - if (c < utf8_min_code[l - 1]) - return -1; - *pp = p; - return c; -} - -#if 0 - -#if defined(EMSCRIPTEN) || defined(__ANDROID__) - -static void *rqsort_arg; -static int (*rqsort_cmp)(const void *, const void *, void *); - -static int rqsort_cmp2(const void *p1, const void *p2) -{ - return rqsort_cmp(p1, p2, rqsort_arg); -} - -/* not reentrant, but not needed with emscripten */ -void rqsort(void *base, size_t nmemb, size_t size, - int (*cmp)(const void *, const void *, void *), - void *arg) -{ - rqsort_arg = arg; - rqsort_cmp = cmp; - qsort(base, nmemb, size, rqsort_cmp2); -} - -#endif - -#else - -typedef void (*exchange_f)(void *a, void *b, size_t size); -typedef int (*cmp_f)(const void *, const void *, void *opaque); - -static void exchange_bytes(void *a, void *b, size_t size) { - uint8_t *ap = (uint8_t *)a; - uint8_t *bp = (uint8_t *)b; - - while (size-- != 0) { - uint8_t t = *ap; - *ap++ = *bp; - *bp++ = t; - } -} - -static void exchange_one_byte(void *a, void *b, size_t size) { - uint8_t *ap = (uint8_t *)a; - uint8_t *bp = (uint8_t *)b; - uint8_t t = *ap; - *ap = *bp; - *bp = t; -} - -static void exchange_int16s(void *a, void *b, size_t size) { - uint16_t *ap = (uint16_t *)a; - uint16_t *bp = (uint16_t *)b; - - for (size /= sizeof(uint16_t); size-- != 0;) { - uint16_t t = *ap; - *ap++ = *bp; - *bp++ = t; - } -} - -static void exchange_one_int16(void *a, void *b, size_t size) { - uint16_t *ap = (uint16_t *)a; - uint16_t *bp = (uint16_t *)b; - uint16_t t = *ap; - *ap = *bp; - *bp = t; -} - -static void exchange_int32s(void *a, void *b, size_t size) { - uint32_t *ap = (uint32_t *)a; - uint32_t *bp = (uint32_t *)b; - - for (size /= sizeof(uint32_t); size-- != 0;) { - uint32_t t = *ap; - *ap++ = *bp; - *bp++ = t; - } -} - -static void exchange_one_int32(void *a, void *b, size_t size) { - uint32_t *ap = (uint32_t *)a; - uint32_t *bp = (uint32_t *)b; - uint32_t t = *ap; - *ap = *bp; - *bp = t; -} - -static void exchange_int64s(void *a, void *b, size_t size) { - uint64_t *ap = (uint64_t *)a; - uint64_t *bp = (uint64_t *)b; - - for (size /= sizeof(uint64_t); size-- != 0;) { - uint64_t t = *ap; - *ap++ = *bp; - *bp++ = t; - } -} - -static void exchange_one_int64(void *a, void *b, size_t size) { - uint64_t *ap = (uint64_t *)a; - uint64_t *bp = (uint64_t *)b; - uint64_t t = *ap; - *ap = *bp; - *bp = t; -} - -static void exchange_int128s(void *a, void *b, size_t size) { - uint64_t *ap = (uint64_t *)a; - uint64_t *bp = (uint64_t *)b; - - for (size /= sizeof(uint64_t) * 2; size-- != 0; ap += 2, bp += 2) { - uint64_t t = ap[0]; - uint64_t u = ap[1]; - ap[0] = bp[0]; - ap[1] = bp[1]; - bp[0] = t; - bp[1] = u; - } -} - -static void exchange_one_int128(void *a, void *b, size_t size) { - uint64_t *ap = (uint64_t *)a; - uint64_t *bp = (uint64_t *)b; - uint64_t t = ap[0]; - uint64_t u = ap[1]; - ap[0] = bp[0]; - ap[1] = bp[1]; - bp[0] = t; - bp[1] = u; -} - -static inline exchange_f exchange_func(const void *base, size_t size) { - switch (((uintptr_t)base | (uintptr_t)size) & 15) { - case 0: - if (size == sizeof(uint64_t) * 2) - return exchange_one_int128; - else - return exchange_int128s; - case 8: - if (size == sizeof(uint64_t)) - return exchange_one_int64; - else - return exchange_int64s; - case 4: - case 12: - if (size == sizeof(uint32_t)) - return exchange_one_int32; - else - return exchange_int32s; - case 2: - case 6: - case 10: - case 14: - if (size == sizeof(uint16_t)) - return exchange_one_int16; - else - return exchange_int16s; - default: - if (size == 1) - return exchange_one_byte; - else - return exchange_bytes; - } -} - -static void heapsortx(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque) -{ - uint8_t *basep = (uint8_t *)base; - size_t i, n, c, r; - exchange_f swap = exchange_func(base, size); - - if (nmemb > 1) { - i = (nmemb / 2) * size; - n = nmemb * size; - - while (i > 0) { - i -= size; - for (r = i; (c = r * 2 + size) < n; r = c) { - if (c < n - size && cmp(basep + c, basep + c + size, opaque) <= 0) - c += size; - if (cmp(basep + r, basep + c, opaque) > 0) - break; - swap(basep + r, basep + c, size); - } - } - for (i = n - size; i > 0; i -= size) { - swap(basep, basep + i, size); - - for (r = 0; (c = r * 2 + size) < i; r = c) { - if (c < i - size && cmp(basep + c, basep + c + size, opaque) <= 0) - c += size; - if (cmp(basep + r, basep + c, opaque) > 0) - break; - swap(basep + r, basep + c, size); - } - } - } -} - -static inline void *med3(void *a, void *b, void *c, cmp_f cmp, void *opaque) -{ - return cmp(a, b, opaque) < 0 ? - (cmp(b, c, opaque) < 0 ? b : (cmp(a, c, opaque) < 0 ? c : a )) : - (cmp(b, c, opaque) > 0 ? b : (cmp(a, c, opaque) < 0 ? a : c )); -} - -/* pointer based version with local stack and insertion sort threshhold */ -void rqsort(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque) -{ - struct { uint8_t *base; size_t count; int depth; } stack[50], *sp = stack; - uint8_t *ptr, *pi, *pj, *plt, *pgt, *top, *m; - size_t m4, i, lt, gt, span, span2; - int c, depth; - exchange_f swap = exchange_func(base, size); - exchange_f swap_block = exchange_func(base, size | 128); - - if (nmemb < 2 || size <= 0) - return; - - sp->base = (uint8_t *)base; - sp->count = nmemb; - sp->depth = 0; - sp++; - - while (sp > stack) { - sp--; - ptr = sp->base; - nmemb = sp->count; - depth = sp->depth; - - while (nmemb > 6) { - if (++depth > 50) { - /* depth check to ensure worst case logarithmic time */ - heapsortx(ptr, nmemb, size, cmp, opaque); - nmemb = 0; - break; - } - /* select median of 3 from 1/4, 1/2, 3/4 positions */ - /* should use median of 5 or 9? */ - m4 = (nmemb >> 2) * size; - m = med3(ptr + m4, ptr + 2 * m4, ptr + 3 * m4, cmp, opaque); - swap(ptr, m, size); /* move the pivot to the start or the array */ - i = lt = 1; - pi = plt = ptr + size; - gt = nmemb; - pj = pgt = top = ptr + nmemb * size; - for (;;) { - while (pi < pj && (c = cmp(ptr, pi, opaque)) >= 0) { - if (c == 0) { - swap(plt, pi, size); - lt++; - plt += size; - } - i++; - pi += size; - } - while (pi < (pj -= size) && (c = cmp(ptr, pj, opaque)) <= 0) { - if (c == 0) { - gt--; - pgt -= size; - swap(pgt, pj, size); - } - } - if (pi >= pj) - break; - swap(pi, pj, size); - i++; - pi += size; - } - /* array has 4 parts: - * from 0 to lt excluded: elements identical to pivot - * from lt to pi excluded: elements smaller than pivot - * from pi to gt excluded: elements greater than pivot - * from gt to n excluded: elements identical to pivot - */ - /* move elements identical to pivot in the middle of the array: */ - /* swap values in ranges [0..lt[ and [i-lt..i[ - swapping the smallest span between lt and i-lt is sufficient - */ - span = plt - ptr; - span2 = pi - plt; - lt = i - lt; - if (span > span2) - span = span2; - swap_block(ptr, pi - span, span); - /* swap values in ranges [gt..top[ and [i..top-(top-gt)[ - swapping the smallest span between top-gt and gt-i is sufficient - */ - span = top - pgt; - span2 = pgt - pi; - pgt = top - span2; - gt = nmemb - (gt - i); - if (span > span2) - span = span2; - swap_block(pi, top - span, span); - - /* now array has 3 parts: - * from 0 to lt excluded: elements smaller than pivot - * from lt to gt excluded: elements identical to pivot - * from gt to n excluded: elements greater than pivot - */ - /* stack the larger segment and keep processing the smaller one - to minimize stack use for pathological distributions */ - if (lt > nmemb - gt) { - sp->base = ptr; - sp->count = lt; - sp->depth = depth; - sp++; - ptr = pgt; - nmemb -= gt; - } else { - sp->base = pgt; - sp->count = nmemb - gt; - sp->depth = depth; - sp++; - nmemb = lt; - } - } - /* Use insertion sort for small fragments */ - for (pi = ptr + size, top = ptr + nmemb * size; pi < top; pi += size) { - for (pj = pi; pj > ptr && cmp(pj - size, pj, opaque) > 0; pj -= size) - swap(pj, pj - size, size); - } - } -} - -#endif diff --git a/deps/quickjs/cutils.h b/deps/quickjs/cutils.h deleted file mode 100644 index 8399d614..00000000 --- a/deps/quickjs/cutils.h +++ /dev/null @@ -1,300 +0,0 @@ -/* - * C utilities - * - * Copyright (c) 2017 Fabrice Bellard - * Copyright (c) 2018 Charlie Gordon - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef CUTILS_H -#define CUTILS_H - -#include -#include - -/* set if CPU is big endian */ -#undef WORDS_BIGENDIAN - -#define likely(x) __builtin_expect(!!(x), 1) -#define unlikely(x) __builtin_expect(!!(x), 0) -#define force_inline inline __attribute__((always_inline)) -#define no_inline __attribute__((noinline)) -#define __maybe_unused __attribute__((unused)) - -#define xglue(x, y) x ## y -#define glue(x, y) xglue(x, y) -#define stringify(s) tostring(s) -#define tostring(s) #s - -#ifndef offsetof -#define offsetof(type, field) ((size_t) &((type *)0)->field) -#endif -#ifndef countof -#define countof(x) (sizeof(x) / sizeof((x)[0])) -#endif - -/* return the pointer of type 'type *' containing 'ptr' as field 'member' */ -#define container_of(ptr, type, member) ((type *)((uint8_t *)(ptr) - offsetof(type, member))) - -typedef int BOOL; - -#ifndef FALSE -enum { - FALSE = 0, - TRUE = 1, -}; -#endif - -void pstrcpy(char *buf, int buf_size, const char *str); -char *pstrcat(char *buf, int buf_size, const char *s); -int strstart(const char *str, const char *val, const char **ptr); -int has_suffix(const char *str, const char *suffix); - -static inline int max_int(int a, int b) -{ - if (a > b) - return a; - else - return b; -} - -static inline int min_int(int a, int b) -{ - if (a < b) - return a; - else - return b; -} - -static inline uint32_t max_uint32(uint32_t a, uint32_t b) -{ - if (a > b) - return a; - else - return b; -} - -static inline uint32_t min_uint32(uint32_t a, uint32_t b) -{ - if (a < b) - return a; - else - return b; -} - -static inline int64_t max_int64(int64_t a, int64_t b) -{ - if (a > b) - return a; - else - return b; -} - -static inline int64_t min_int64(int64_t a, int64_t b) -{ - if (a < b) - return a; - else - return b; -} - -/* WARNING: undefined if a = 0 */ -static inline int clz32(unsigned int a) -{ - return __builtin_clz(a); -} - -/* WARNING: undefined if a = 0 */ -static inline int clz64(uint64_t a) -{ - return __builtin_clzll(a); -} - -/* WARNING: undefined if a = 0 */ -static inline int ctz32(unsigned int a) -{ - return __builtin_ctz(a); -} - -/* WARNING: undefined if a = 0 */ -static inline int ctz64(uint64_t a) -{ - return __builtin_ctzll(a); -} - -struct __attribute__((packed)) packed_u64 { - uint64_t v; -}; - -struct __attribute__((packed)) packed_u32 { - uint32_t v; -}; - -struct __attribute__((packed)) packed_u16 { - uint16_t v; -}; - -static inline uint64_t get_u64(const uint8_t *tab) -{ - return ((const struct packed_u64 *)tab)->v; -} - -static inline int64_t get_i64(const uint8_t *tab) -{ - return (int64_t)((const struct packed_u64 *)tab)->v; -} - -static inline void put_u64(uint8_t *tab, uint64_t val) -{ - ((struct packed_u64 *)tab)->v = val; -} - -static inline uint32_t get_u32(const uint8_t *tab) -{ - return ((const struct packed_u32 *)tab)->v; -} - -static inline int32_t get_i32(const uint8_t *tab) -{ - return (int32_t)((const struct packed_u32 *)tab)->v; -} - -static inline void put_u32(uint8_t *tab, uint32_t val) -{ - ((struct packed_u32 *)tab)->v = val; -} - -static inline uint32_t get_u16(const uint8_t *tab) -{ - return ((const struct packed_u16 *)tab)->v; -} - -static inline int32_t get_i16(const uint8_t *tab) -{ - return (int16_t)((const struct packed_u16 *)tab)->v; -} - -static inline void put_u16(uint8_t *tab, uint16_t val) -{ - ((struct packed_u16 *)tab)->v = val; -} - -static inline uint32_t get_u8(const uint8_t *tab) -{ - return *tab; -} - -static inline int32_t get_i8(const uint8_t *tab) -{ - return (int8_t)*tab; -} - -static inline void put_u8(uint8_t *tab, uint8_t val) -{ - *tab = val; -} - -static inline uint16_t bswap16(uint16_t x) -{ - return (x >> 8) | (x << 8); -} - -static inline uint32_t bswap32(uint32_t v) -{ - return ((v & 0xff000000) >> 24) | ((v & 0x00ff0000) >> 8) | - ((v & 0x0000ff00) << 8) | ((v & 0x000000ff) << 24); -} - -static inline uint64_t bswap64(uint64_t v) -{ - return ((v & ((uint64_t)0xff << (7 * 8))) >> (7 * 8)) | - ((v & ((uint64_t)0xff << (6 * 8))) >> (5 * 8)) | - ((v & ((uint64_t)0xff << (5 * 8))) >> (3 * 8)) | - ((v & ((uint64_t)0xff << (4 * 8))) >> (1 * 8)) | - ((v & ((uint64_t)0xff << (3 * 8))) << (1 * 8)) | - ((v & ((uint64_t)0xff << (2 * 8))) << (3 * 8)) | - ((v & ((uint64_t)0xff << (1 * 8))) << (5 * 8)) | - ((v & ((uint64_t)0xff << (0 * 8))) << (7 * 8)); -} - -/* XXX: should take an extra argument to pass slack information to the caller */ -typedef void *DynBufReallocFunc(void *opaque, void *ptr, size_t size); - -typedef struct DynBuf { - uint8_t *buf; - size_t size; - size_t allocated_size; - BOOL error; /* true if a memory allocation error occurred */ - DynBufReallocFunc *realloc_func; - void *opaque; /* for realloc_func */ -} DynBuf; - -void dbuf_init(DynBuf *s); -void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func); -int dbuf_realloc(DynBuf *s, size_t new_size); -int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len); -int dbuf_put(DynBuf *s, const uint8_t *data, size_t len); -int dbuf_put_self(DynBuf *s, size_t offset, size_t len); -int dbuf_putc(DynBuf *s, uint8_t c); -int dbuf_putstr(DynBuf *s, const char *str); -static inline int dbuf_put_u16(DynBuf *s, uint16_t val) -{ - return dbuf_put(s, (uint8_t *)&val, 2); -} -static inline int dbuf_put_u32(DynBuf *s, uint32_t val) -{ - return dbuf_put(s, (uint8_t *)&val, 4); -} -static inline int dbuf_put_u64(DynBuf *s, uint64_t val) -{ - return dbuf_put(s, (uint8_t *)&val, 8); -} -int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s, - const char *fmt, ...); -void dbuf_free(DynBuf *s); -static inline BOOL dbuf_error(DynBuf *s) { - return s->error; -} -static inline void dbuf_set_error(DynBuf *s) -{ - s->error = TRUE; -} - -#define UTF8_CHAR_LEN_MAX 6 - -int unicode_to_utf8(uint8_t *buf, unsigned int c); -int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp); - -static inline int from_hex(int c) -{ - if (c >= '0' && c <= '9') - return c - '0'; - else if (c >= 'A' && c <= 'F') - return c - 'A' + 10; - else if (c >= 'a' && c <= 'f') - return c - 'a' + 10; - else - return -1; -} - -void rqsort(void *base, size_t nmemb, size_t size, - int (*cmp)(const void *, const void *, void *), - void *arg); - -#endif /* CUTILS_H */ diff --git a/deps/quickjs/doc/jsbignum.html b/deps/quickjs/doc/jsbignum.html deleted file mode 100644 index ab31612b..00000000 --- a/deps/quickjs/doc/jsbignum.html +++ /dev/null @@ -1,734 +0,0 @@ - - - - -Javascript Bignum Extensions - - - - - - - - - - - - - - - -

Javascript Bignum Extensions

- - -

Table of Contents

- -
- -
- - - -

1 Introduction

- -

The Bignum extensions add the following features to the Javascript -language while being 100% backward compatible: -

-
    -
  • Operator overloading with a dispatch logic inspired from the proposal available at https://github.com/tc39/proposal-operator-overloading/. - -
  • Arbitrarily large floating point numbers (BigFloat) in base 2 using the IEEE 754 semantics. - -
  • Arbitrarily large floating point numbers (BigDecimal) in base 10 based on the proposal available at -https://github.com/littledan/proposal-bigdecimal. - -
  • math mode: arbitrarily large integers and floating point numbers are available by default. The integer division and power can be overloaded for example to return a fraction. The modulo operator (%) is defined as the Euclidian -remainder. ^ is an alias to the power operator -(**). ^^ is used as the exclusive or operator. - -
- -

The extensions are independent from each other except the math -mode which relies on BigFloat and operator overloading. -

- -

2 Operator overloading

- -

Operator overloading is inspired from the proposal available at -https://github.com/tc39/proposal-operator-overloading/. It -implements the same dispatch logic but finds the operator sets by -looking at the Symbol.operatorSet property in the objects. The -changes were done in order to simplify the implementation. -

-

More precisely, the following modifications were made: -

-
    -
  • with operators from is not supported. Operator overloading is always enabled. - -
  • The dispatch is not based on a static [[OperatorSet]] field in all instances. Instead, a dynamic lookup of the Symbol.operatorSet property is done. This property is typically added in the prototype of each object. - -
  • Operators.create(...dictionaries) is used to create a new OperatorSet object. The Operators function is supported as an helper to be closer to the TC39 proposal. - -
  • [] cannot be overloaded. - -
  • In math mode, the BigInt division and power operators can be overloaded with Operators.updateBigIntOperators(dictionary). - -
- - -

3 BigInt extensions

- -

A few properties are added to the BigInt object: -

-
-
tdiv(a, b)
-

Return trunc(a/b). b = 0 raises a RangeError -exception. -

-
-
fdiv(a, b)
-

Return \lfloor a/b \rfloor. b = 0 raises a RangeError -exception. -

-
-
cdiv(a, b)
-

Return \lceil a/b \rceil. b = 0 raises a RangeError -exception. -

-
-
ediv(a, b)
-

Return sgn(b) \lfloor a/{|b|} \rfloor (Euclidian -division). b = 0 raises a RangeError exception. -

-
-
tdivrem(a, b)
-
fdivrem(a, b)
-
cdivrem(a, b)
-
edivrem(a, b)
-

Return an array of two elements. The first element is the quotient, -the second is the remainder. The same rounding is done as the -corresponding division operation. -

-
-
sqrt(a)
-

Return \lfloor \sqrt(a) \rfloor. A RangeError exception is -raised if a < 0. -

-
-
sqrtrem(a)
-

Return an array of two elements. The first element is \lfloor -\sqrt{a} \rfloor. The second element is a-\lfloor \sqrt{a} -\rfloor^2. A RangeError exception is raised if a < 0. -

-
-
floorLog2(a)
-

Return -1 if a \leq 0 otherwise return \lfloor \log2(a) \rfloor. -

-
-
ctz(a)
-

Return the number of trailing zeros in the two’s complement binary representation of a. Return -1 if a=0. -

-
-
- - -

4 BigFloat

- - -

4.1 Introduction

- -

This extension adds the BigFloat primitive type. The -BigFloat type represents floating point numbers in base 2 -with the IEEE 754 semantics. A floating -point number is represented as a sign, mantissa and exponent. The -special values NaN, +/-Infinity, +0 and -0 -are supported. The mantissa and exponent can have any bit length with -an implementation specific minimum and maximum. -

- -

4.2 Floating point rounding

- -

Each floating point operation operates with infinite precision and -then rounds the result according to the specified floating point -environment (BigFloatEnv object). The status flags of the -environment are also set according to the result of the operation. -

-

If no floating point environment is provided, the global floating -point environment is used. -

-

The rounding mode of the global floating point environment is always -RNDN (“round to nearest with ties to even”)1. The status flags of the global environment cannot be -read2. The precision of the global environment is -BigFloatEnv.prec. The number of exponent bits of the global -environment is BigFloatEnv.expBits. The global environment -subnormal flag is set to true. -

-

For example, prec = 53 and expBits = 11 exactly give -the same precision as the IEEE 754 64 bit floating point format. The -default precision is prec = 113 and expBits = 15 (IEEE -754 128 bit floating point format). -

-

The global floating point environment can only be modified temporarily -when calling a function (see BigFloatEnv.setPrec). Hence a -function can change the global floating point environment for its -callees but not for its caller. -

- -

4.3 Operators

- -

The builtin operators are extended so that a BigFloat is returned if -at least one operand is a BigFloat. The computations are always done -with infinite precision and rounded according to the global floating -point environment. -

-

typeof applied on a BigFloat returns bigfloat. -

-

BigFloat can be compared with all the other numeric types and the -result follows the expected mathematical relations. -

-

However, since BigFloat and Number are different types they are never -equal when using the strict comparison operators (e.g. 0.0 === -0.0l is false). -

- -

4.4 BigFloat literals

- -

BigFloat literals are floating point numbers with a trailing l -suffix. BigFloat literals have an infinite precision. They are rounded -according to the global floating point environment when they are -evaluated.3 -

- -

4.5 Builtin Object changes

- - -

4.5.1 BigFloat function

- -

The BigFloat function cannot be invoked as a constructor. When -invoked as a function: the parameter is converted to a primitive -type. If the result is a numeric type, it is converted to BigFloat -without rounding. If the result is a string, it is converted to -BigFloat using the precision of the global floating point environment. -

-

BigFloat properties: -

-
-
LN2
-
PI
-

Getter. Return the value of the corresponding mathematical constant -rounded to nearest, ties to even with the current global -precision. The constant values are cached for small precisions. -

-
-
MIN_VALUE
-
MAX_VALUE
-
EPSILON
-

Getter. Return the minimum, maximum and epsilon BigFloat values -(same definition as the corresponding Number constants). -

-
-
fpRound(a[, e])
-

Round the floating point number a according to the floating -point environment e or the global environment if e is -undefined. -

-
-
parseFloat(a[, radix[, e]])
-

Parse the string a as a floating point number in radix -radix. The radix is 0 (default) or from 2 to 36. The radix 0 -means radix 10 unless there is a hexadecimal or binary prefix. The -result is rounded according to the floating point environment e -or the global environment if e is undefined. -

-
-
isFinite(a)
-

Return true if a is a finite bigfloat. -

-
-
isNaN(a)
-

Return true if a is a NaN bigfloat. -

-
-
add(a, b[, e])
-
sub(a, b[, e])
-
mul(a, b[, e])
-
div(a, b[, e])
-

Perform the specified floating point operation and round the floating -point number a according to the floating point environment -e or the global environment if e is undefined. If -e is specified, the floating point status flags are updated. -

-
-
floor(x)
-
ceil(x)
-
round(x)
-
trunc(x)
-

Round to an integer. No additional rounding is performed. -

-
-
abs(x)
-

Return the absolute value of x. No additional rounding is performed. -

-
-
fmod(x, y[, e])
-
remainder(x, y[, e])
-

Floating point remainder. The quotient is truncated to zero (fmod) or -to the nearest integer with ties to even (remainder). e is an -optional floating point environment. -

-
-
sqrt(x[, e])
-

Square root. Return a rounded floating point number. e is an -optional floating point environment. -

-
-
sin(x[, e])
-
cos(x[, e])
-
tan(x[, e])
-
asin(x[, e])
-
acos(x[, e])
-
atan(x[, e])
-
atan2(x, y[, e])
-
exp(x[, e])
-
log(x[, e])
-
pow(x, y[, e])
-

Transcendental operations. Return a rounded floating point -number. e is an optional floating point environment. -

-
-
- - -

4.5.2 BigFloat.prototype

- -

The following properties are modified: -

-
-
valueOf()
-

Return the bigfloat primitive value corresponding to this. -

-
-
toString(radix)
-
-

For floating point numbers: -

-
    -
  • If the radix is a power of two, the conversion is done with infinite -precision. -
  • Otherwise, the number is rounded to nearest with ties to even using -the global precision. It is then converted to string using the minimum -number of digits so that its conversion back to a floating point using -the global precision and round to nearest gives the same number. - -
- -

The exponent letter is e for base 10, p for bases 2, 8, -16 with a binary exponent and @ for the other bases. -

-
-
toPrecision(p, rnd_mode = BigFloatEnv.RNDNA, radix = 10)
-
toFixed(p, rnd_mode = BigFloatEnv.RNDNA, radix = 10)
-
toExponential(p, rnd_mode = BigFloatEnv.RNDNA, radix = 10)
-

Same semantics as the corresponding Number functions with -BigFloats. There is no limit on the accepted precision p. The -rounding mode and radix can be optionally specified. The radix must be -between 2 and 36. -

-
-
- - -

4.5.3 BigFloatEnv constructor

- -

The BigFloatEnv([p, [,rndMode]] constructor cannot be invoked as a -function. The floating point environment contains: -

-
    -
  • the mantissa precision in bits - -
  • the exponent size in bits assuming an IEEE 754 representation; - -
  • the subnormal flag (if true, subnormal floating point numbers can -be generated by the floating point operations). - -
  • the rounding mode - -
  • the floating point status. The status flags can only be set by the floating point operations. They can be reset with BigFloatEnv.prototype.clearStatus() or with the various status flag setters. - -
- -

new BigFloatEnv([p, [,rndMode]] creates a new floating point -environment. The status flags are reset. If no parameter is given the -precision, exponent bits and subnormal flags are copied from the -global floating point environment. Otherwise, the precision is set to -p, the number of exponent bits is set to expBitsMax and the -subnormal flags is set to false. If rndMode is -undefined, the rounding mode is set to RNDN. -

-

BigFloatEnv properties: -

-
-
prec
-

Getter. Return the precision in bits of the global floating point -environment. The initial value is 113. -

-
-
expBits
-

Getter. Return the exponent size in bits of the global floating point -environment assuming an IEEE 754 representation. The initial value is -15. -

-
-
setPrec(f, p[, e])
-

Set the precision of the global floating point environment to p -and the exponent size to e then call the function -f. Then the Float precision and exponent size are reset to -their precious value and the return value of f is returned (or -an exception is raised if f raised an exception). If e -is undefined it is set to BigFloatEnv.expBitsMax. -

-
-
precMin
-

Read-only integer. Return the minimum allowed precision. Must be at least 2. -

-
-
precMax
-

Read-only integer. Return the maximum allowed precision. Must be at least 113. -

-
-
expBitsMin
-

Read-only integer. Return the minimum allowed exponent size in -bits. Must be at least 3. -

-
-
expBitsMax
-

Read-only integer. Return the maximum allowed exponent size in -bits. Must be at least 15. -

-
-
RNDN
-

Read-only integer. Round to nearest, with ties to even rounding mode. -

-
-
RNDZ
-

Read-only integer. Round to zero rounding mode. -

-
-
RNDD
-

Read-only integer. Round to -Infinity rounding mode. -

-
-
RNDU
-

Read-only integer. Round to +Infinity rounding mode. -

-
-
RNDNA
-

Read-only integer. Round to nearest, with ties away from zero rounding mode. -

-
-
RNDA
-

Read-only integer. Round away from zero rounding mode. -

-
-
RNDF4
-

Read-only integer. Faithful rounding mode. The result is -non-deterministically rounded to -Infinity or +Infinity. This rounding -mode usually gives a faster and deterministic running time for the -floating point operations. -

-
-
- -

BigFloatEnv.prototype properties: -

-
-
prec
-

Getter and setter (Integer). Return or set the precision in bits. -

-
-
expBits
-

Getter and setter (Integer). Return or set the exponent size in bits -assuming an IEEE 754 representation. -

-
-
rndMode
-

Getter and setter (Integer). Return or set the rounding mode. -

-
-
subnormal
-

Getter and setter (Boolean). subnormal flag. It is false when -expBits = expBitsMax. -

-
-
clearStatus()
-

Clear the status flags. -

-
-
invalidOperation
-
divideByZero
-
overflow
-
underflow
-
inexact
-

Getter and setter (Boolean). Status flags. -

-
-
- - -

5 BigDecimal

- -

This extension adds the BigDecimal primitive type. The -BigDecimal type represents floating point numbers in base -10. It is inspired from the proposal available at -https://github.com/littledan/proposal-bigdecimal. -

-

The BigDecimal floating point numbers are always normalized and -finite. There is no concept of -0, Infinity or -NaN. By default, all the computations are done with infinite -precision. -

- -

5.1 Operators

- -

The following builtin operators support BigDecimal: -

-
-
+
-
-
-
*
-

Both operands must be BigDecimal. The result is computed with infinite -precision. -

-
%
-

Both operands must be BigDecimal. The result is computed with infinite -precision. A range error is throws in case of division by zero. -

-
-
/
-

Both operands must be BigDecimal. A range error is throws in case of -division by zero or if the result cannot be represented with infinite -precision (use BigDecimal.div to specify the rounding). -

-
-
**
-

Both operands must be BigDecimal. The exponent must be a positive -integer. The result is computed with infinite precision. -

-
-
===
-

When one of the operand is a BigDecimal, return true if both operands -are a BigDecimal and if they are equal. -

-
-
==
-
!=
-
<=
-
>=
-
<
-
>
-
-

Numerical comparison. When one of the operand is not a BigDecimal, it is -converted to BigDecimal by using ToString(). Hence comparisons between -Number and BigDecimal do not use the exact mathematical value of the -Number value. -

-
-
- - -

5.2 BigDecimal literals

- -

BigDecimal literals are decimal floating point numbers with a trailing -m suffix. -

- -

5.3 Builtin Object changes

- - -

5.3.1 The BigDecimal function.

- -

It returns 0m if no parameter is provided. Otherwise the first -parameter is converted to a bigdecimal by using ToString(). Hence -Number values are not converted to their exact numerical value as -BigDecimal. -

- -

5.3.2 Properties of the BigDecimal object

- -
-
add(a, b[, e])
-
sub(a, b[, e])
-
mul(a, b[, e])
-
div(a, b[, e])
-
mod(a, b[, e])
-
sqrt(a, e)
-
round(a, e)
-

Perform the specified floating point operation and round the floating -point result according to the rounding object e. If the -rounding object is not present, the operation is executed with -infinite precision. -

-

For div, a RangeError exception is thrown in case of -division by zero or if the result cannot be represented with infinite -precision if no rounding object is present. -

-

For sqrt, a range error is thrown if a is less than -zero. -

-

The rounding object must contain the following properties: -roundingMode is a string specifying the rounding mode -("floor", "ceiling", "down", "up", -"half-even", "half-up"). Either -maximumSignificantDigits or maximumFractionDigits must -be present to specify respectively the number of significant digits -(must be >= 1) or the number of digits after the decimal point (must -be >= 0). -

-
-
- - -

5.3.3 Properties of the BigDecimal.prototype object

- -
-
valueOf()
-

Return the bigdecimal primitive value corresponding to this. -

-
-
toString()
-

Convert this to a string with infinite precision in base 10. -

-
-
toPrecision(p, rnd_mode = "half-up")
-
toFixed(p, rnd_mode = "half-up")
-
toExponential(p, rnd_mode = "half-up")
-

Convert the BigDecimal this to string with the specified -precision p. There is no limit on the accepted precision -p. The rounding mode can be optionally -specified. toPrecision outputs either in decimal fixed notation -or in decimal exponential notation with a p digits of -precision. toExponential outputs in decimal exponential -notation with p digits after the decimal point. toFixed -outputs in decimal notation with p digits after the decimal -point. -

-
-
- - -

6 Math mode

- -

A new math mode is enabled with the "use math" -directive. It propagates the same way as the strict mode. It is -designed so that arbitrarily large integers and floating point numbers -are available by default. In order to minimize the number of changes -in the Javascript semantics, integers are represented either as Number -or BigInt depending on their magnitude. Floating point numbers are -always represented as BigFloat. -

-

The following changes are made to the Javascript semantics: -

-
    -
  • Floating point literals (i.e. number with a decimal point or an exponent) are BigFloat by default (i.e. a l suffix is implied). Hence typeof 1.0 === "bigfloat". - -
  • Integer literals (i.e. numbers without a decimal point or an exponent) with or without the n suffix are BigInt if their value cannot be represented as a safe integer. A safe integer is defined as a integer whose absolute value is smaller or equal to 2**53-1. Hence typeof 1 === "number ", typeof 1n === "number" but typeof 9007199254740992 === "bigint" . - -
  • All the bigint builtin operators and functions are modified so that their result is returned as a Number if it is a safe integer. Otherwise the result stays a BigInt. - -
  • The builtin operators are modified so that they return an exact result (which can be a BigInt) if their operands are safe integers. Operands between Number and BigInt are accepted provided the Number operand is a safe integer. The integer power with a negative exponent returns a BigFloat as result. The integer division returns a BigFloat as result. - -
  • The ^ operator is an alias to the power operator (**). - -
  • The power operator (both ^ and **) grammar is modified so that -2^2 is allowed and yields -4. - -
  • The logical xor operator is still available with the ^^ operator. - -
  • The modulo operator (%) returns the Euclidian remainder (always positive) instead of the truncated remainder. - -
  • The integer division operator can be overloaded with Operators.updateBigIntOperators(dictionary). - -
  • The integer power operator with a non zero negative exponent can be overloaded with Operators.updateBigIntOperators(dictionary). - -
- -
-
-

Footnotes

- -

(1)

-

The -rationale is that the rounding mode changes must always be -explicit.

-

(2)

-

The rationale is to avoid side effects for the built-in -operators.

-

(3)

-

Base 10 floating point literals cannot usually be -exactly represented as base 2 floating point number. In order to -ensure that the literal is represented accurately with the current -precision, it must be evaluated at runtime.

-

(4)

-

Could be removed in case a deterministic behavior for floating point operations is required.

-
-
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Bignum extensions add the following features to the Javascript -language while being 100% backward compatible: - -@itemize - -@item Operator overloading with a dispatch logic inspired from the proposal available at @url{https://github.com/tc39/proposal-operator-overloading/}. - -@item Arbitrarily large floating point numbers (@code{BigFloat}) in base 2 using the IEEE 754 semantics. - -@item Arbitrarily large floating point numbers (@code{BigDecimal}) in base 10 based on the proposal available at -@url{https://github.com/littledan/proposal-bigdecimal}. - -@item @code{math} mode: arbitrarily large integers and floating point numbers are available by default. The integer division and power can be overloaded for example to return a fraction. The modulo operator (@code{%}) is defined as the Euclidian -remainder. @code{^} is an alias to the power operator -(@code{**}). @code{^^} is used as the exclusive or operator. - -@end itemize - -The extensions are independent from each other except the @code{math} -mode which relies on BigFloat and operator overloading. - -@chapter Operator overloading - -Operator overloading is inspired from the proposal available at -@url{https://github.com/tc39/proposal-operator-overloading/}. It -implements the same dispatch logic but finds the operator sets by -looking at the @code{Symbol.operatorSet} property in the objects. The -changes were done in order to simplify the implementation. - -More precisely, the following modifications were made: - -@itemize - -@item @code{with operators from} is not supported. Operator overloading is always enabled. - -@item The dispatch is not based on a static @code{[[OperatorSet]]} field in all instances. Instead, a dynamic lookup of the @code{Symbol.operatorSet} property is done. This property is typically added in the prototype of each object. - -@item @code{Operators.create(...dictionaries)} is used to create a new OperatorSet object. The @code{Operators} function is supported as an helper to be closer to the TC39 proposal. - -@item @code{[]} cannot be overloaded. - -@item In math mode, the BigInt division and power operators can be overloaded with @code{Operators.updateBigIntOperators(dictionary)}. - -@end itemize - -@chapter BigInt extensions - -A few properties are added to the BigInt object: - -@table @code - -@item tdiv(a, b) -Return @math{trunc(a/b)}. @code{b = 0} raises a RangeError -exception. - -@item fdiv(a, b) -Return @math{\lfloor a/b \rfloor}. @code{b = 0} raises a RangeError -exception. - -@item cdiv(a, b) -Return @math{\lceil a/b \rceil}. @code{b = 0} raises a RangeError -exception. - -@item ediv(a, b) -Return @math{sgn(b) \lfloor a/{|b|} \rfloor} (Euclidian -division). @code{b = 0} raises a RangeError exception. - -@item tdivrem(a, b) -@item fdivrem(a, b) -@item cdivrem(a, b) -@item edivrem(a, b) -Return an array of two elements. The first element is the quotient, -the second is the remainder. The same rounding is done as the -corresponding division operation. - -@item sqrt(a) -Return @math{\lfloor \sqrt(a) \rfloor}. A RangeError exception is -raised if @math{a < 0}. - -@item sqrtrem(a) -Return an array of two elements. The first element is @math{\lfloor -\sqrt{a} \rfloor}. The second element is @math{a-\lfloor \sqrt{a} -\rfloor^2}. A RangeError exception is raised if @math{a < 0}. - -@item floorLog2(a) -Return -1 if @math{a \leq 0} otherwise return @math{\lfloor \log2(a) \rfloor}. - -@item ctz(a) -Return the number of trailing zeros in the two's complement binary representation of a. Return -1 if @math{a=0}. - -@end table - -@chapter BigFloat - -@section Introduction - -This extension adds the @code{BigFloat} primitive type. The -@code{BigFloat} type represents floating point numbers in base 2 -with the IEEE 754 semantics. A floating -point number is represented as a sign, mantissa and exponent. The -special values @code{NaN}, @code{+/-Infinity}, @code{+0} and @code{-0} -are supported. The mantissa and exponent can have any bit length with -an implementation specific minimum and maximum. - -@section Floating point rounding - -Each floating point operation operates with infinite precision and -then rounds the result according to the specified floating point -environment (@code{BigFloatEnv} object). The status flags of the -environment are also set according to the result of the operation. - -If no floating point environment is provided, the global floating -point environment is used. - -The rounding mode of the global floating point environment is always -@code{RNDN} (``round to nearest with ties to even'')@footnote{The -rationale is that the rounding mode changes must always be -explicit.}. The status flags of the global environment cannot be -read@footnote{The rationale is to avoid side effects for the built-in -operators.}. The precision of the global environment is -@code{BigFloatEnv.prec}. The number of exponent bits of the global -environment is @code{BigFloatEnv.expBits}. The global environment -subnormal flag is set to @code{true}. - -For example, @code{prec = 53} and @code{ expBits = 11} exactly give -the same precision as the IEEE 754 64 bit floating point format. The -default precision is @code{prec = 113} and @code{ expBits = 15} (IEEE -754 128 bit floating point format). - -The global floating point environment can only be modified temporarily -when calling a function (see @code{BigFloatEnv.setPrec}). Hence a -function can change the global floating point environment for its -callees but not for its caller. - -@section Operators - -The builtin operators are extended so that a BigFloat is returned if -at least one operand is a BigFloat. The computations are always done -with infinite precision and rounded according to the global floating -point environment. - -@code{typeof} applied on a @code{BigFloat} returns @code{bigfloat}. - -BigFloat can be compared with all the other numeric types and the -result follows the expected mathematical relations. - -However, since BigFloat and Number are different types they are never -equal when using the strict comparison operators (e.g. @code{0.0 === -0.0l} is false). - -@section BigFloat literals - -BigFloat literals are floating point numbers with a trailing @code{l} -suffix. BigFloat literals have an infinite precision. They are rounded -according to the global floating point environment when they are -evaluated.@footnote{Base 10 floating point literals cannot usually be -exactly represented as base 2 floating point number. In order to -ensure that the literal is represented accurately with the current -precision, it must be evaluated at runtime.} - -@section Builtin Object changes - -@subsection @code{BigFloat} function - -The @code{BigFloat} function cannot be invoked as a constructor. When -invoked as a function: the parameter is converted to a primitive -type. If the result is a numeric type, it is converted to BigFloat -without rounding. If the result is a string, it is converted to -BigFloat using the precision of the global floating point environment. - -@code{BigFloat} properties: - -@table @code - -@item LN2 -@item PI -Getter. Return the value of the corresponding mathematical constant -rounded to nearest, ties to even with the current global -precision. The constant values are cached for small precisions. - -@item MIN_VALUE -@item MAX_VALUE -@item EPSILON -Getter. Return the minimum, maximum and epsilon @code{BigFloat} values -(same definition as the corresponding @code{Number} constants). - -@item fpRound(a[, e]) -Round the floating point number @code{a} according to the floating -point environment @code{e} or the global environment if @code{e} is -undefined. - -@item parseFloat(a[, radix[, e]]) -Parse the string @code{a} as a floating point number in radix -@code{radix}. The radix is 0 (default) or from 2 to 36. The radix 0 -means radix 10 unless there is a hexadecimal or binary prefix. The -result is rounded according to the floating point environment @code{e} -or the global environment if @code{e} is undefined. - -@item isFinite(a) -Return true if @code{a} is a finite bigfloat. - -@item isNaN(a) -Return true if @code{a} is a NaN bigfloat. - -@item add(a, b[, e]) -@item sub(a, b[, e]) -@item mul(a, b[, e]) -@item div(a, b[, e]) -Perform the specified floating point operation and round the floating -point number @code{a} according to the floating point environment -@code{e} or the global environment if @code{e} is undefined. If -@code{e} is specified, the floating point status flags are updated. - -@item floor(x) -@item ceil(x) -@item round(x) -@item trunc(x) -Round to an integer. No additional rounding is performed. - -@item abs(x) -Return the absolute value of x. No additional rounding is performed. - -@item fmod(x, y[, e]) -@item remainder(x, y[, e]) -Floating point remainder. The quotient is truncated to zero (fmod) or -to the nearest integer with ties to even (remainder). @code{e} is an -optional floating point environment. - -@item sqrt(x[, e]) -Square root. Return a rounded floating point number. @code{e} is an -optional floating point environment. - -@item sin(x[, e]) -@item cos(x[, e]) -@item tan(x[, e]) -@item asin(x[, e]) -@item acos(x[, e]) -@item atan(x[, e]) -@item atan2(x, y[, e]) -@item exp(x[, e]) -@item log(x[, e]) -@item pow(x, y[, e]) -Transcendental operations. Return a rounded floating point -number. @code{e} is an optional floating point environment. - -@end table - -@subsection @code{BigFloat.prototype} - -The following properties are modified: - -@table @code -@item valueOf() -Return the bigfloat primitive value corresponding to @code{this}. - -@item toString(radix) - -For floating point numbers: - -@itemize -@item -If the radix is a power of two, the conversion is done with infinite -precision. -@item -Otherwise, the number is rounded to nearest with ties to even using -the global precision. It is then converted to string using the minimum -number of digits so that its conversion back to a floating point using -the global precision and round to nearest gives the same number. - -@end itemize - -The exponent letter is @code{e} for base 10, @code{p} for bases 2, 8, -16 with a binary exponent and @code{@@} for the other bases. - -@item toPrecision(p, rnd_mode = BigFloatEnv.RNDNA, radix = 10) -@item toFixed(p, rnd_mode = BigFloatEnv.RNDNA, radix = 10) -@item toExponential(p, rnd_mode = BigFloatEnv.RNDNA, radix = 10) -Same semantics as the corresponding @code{Number} functions with -BigFloats. There is no limit on the accepted precision @code{p}. The -rounding mode and radix can be optionally specified. The radix must be -between 2 and 36. - -@end table - -@subsection @code{BigFloatEnv} constructor - -The @code{BigFloatEnv([p, [,rndMode]]} constructor cannot be invoked as a -function. The floating point environment contains: - -@itemize -@item the mantissa precision in bits - -@item the exponent size in bits assuming an IEEE 754 representation; - -@item the subnormal flag (if true, subnormal floating point numbers can -be generated by the floating point operations). - -@item the rounding mode - -@item the floating point status. The status flags can only be set by the floating point operations. They can be reset with @code{BigFloatEnv.prototype.clearStatus()} or with the various status flag setters. - -@end itemize - -@code{new BigFloatEnv([p, [,rndMode]]} creates a new floating point -environment. The status flags are reset. If no parameter is given the -precision, exponent bits and subnormal flags are copied from the -global floating point environment. Otherwise, the precision is set to -@code{p}, the number of exponent bits is set to @code{expBitsMax} and the -subnormal flags is set to @code{false}. If @code{rndMode} is -@code{undefined}, the rounding mode is set to @code{RNDN}. - -@code{BigFloatEnv} properties: - -@table @code - -@item prec -Getter. Return the precision in bits of the global floating point -environment. The initial value is @code{113}. - -@item expBits -Getter. Return the exponent size in bits of the global floating point -environment assuming an IEEE 754 representation. The initial value is -@code{15}. - -@item setPrec(f, p[, e]) -Set the precision of the global floating point environment to @code{p} -and the exponent size to @code{e} then call the function -@code{f}. Then the Float precision and exponent size are reset to -their precious value and the return value of @code{f} is returned (or -an exception is raised if @code{f} raised an exception). If @code{e} -is @code{undefined} it is set to @code{BigFloatEnv.expBitsMax}. - -@item precMin -Read-only integer. Return the minimum allowed precision. Must be at least 2. - -@item precMax -Read-only integer. Return the maximum allowed precision. Must be at least 113. - -@item expBitsMin -Read-only integer. Return the minimum allowed exponent size in -bits. Must be at least 3. - -@item expBitsMax -Read-only integer. Return the maximum allowed exponent size in -bits. Must be at least 15. - -@item RNDN -Read-only integer. Round to nearest, with ties to even rounding mode. - -@item RNDZ -Read-only integer. Round to zero rounding mode. - -@item RNDD -Read-only integer. Round to -Infinity rounding mode. - -@item RNDU -Read-only integer. Round to +Infinity rounding mode. - -@item RNDNA -Read-only integer. Round to nearest, with ties away from zero rounding mode. - -@item RNDA -Read-only integer. Round away from zero rounding mode. - -@item RNDF@footnote{Could be removed in case a deterministic behavior for floating point operations is required.} -Read-only integer. Faithful rounding mode. The result is -non-deterministically rounded to -Infinity or +Infinity. This rounding -mode usually gives a faster and deterministic running time for the -floating point operations. - -@end table - -@code{BigFloatEnv.prototype} properties: - -@table @code - -@item prec -Getter and setter (Integer). Return or set the precision in bits. - -@item expBits -Getter and setter (Integer). Return or set the exponent size in bits -assuming an IEEE 754 representation. - -@item rndMode -Getter and setter (Integer). Return or set the rounding mode. - -@item subnormal -Getter and setter (Boolean). subnormal flag. It is false when -@code{expBits = expBitsMax}. - -@item clearStatus() -Clear the status flags. - -@item invalidOperation -@item divideByZero -@item overflow -@item underflow -@item inexact -Getter and setter (Boolean). Status flags. - -@end table - -@chapter BigDecimal - -This extension adds the @code{BigDecimal} primitive type. The -@code{BigDecimal} type represents floating point numbers in base -10. It is inspired from the proposal available at -@url{https://github.com/littledan/proposal-bigdecimal}. - -The @code{BigDecimal} floating point numbers are always normalized and -finite. There is no concept of @code{-0}, @code{Infinity} or -@code{NaN}. By default, all the computations are done with infinite -precision. - -@section Operators - -The following builtin operators support BigDecimal: - -@table @code - -@item + -@item - -@item * -Both operands must be BigDecimal. The result is computed with infinite -precision. -@item % -Both operands must be BigDecimal. The result is computed with infinite -precision. A range error is throws in case of division by zero. - -@item / -Both operands must be BigDecimal. A range error is throws in case of -division by zero or if the result cannot be represented with infinite -precision (use @code{BigDecimal.div} to specify the rounding). - -@item ** -Both operands must be BigDecimal. The exponent must be a positive -integer. The result is computed with infinite precision. - -@item === -When one of the operand is a BigDecimal, return true if both operands -are a BigDecimal and if they are equal. - -@item == -@item != -@item <= -@item >= -@item < -@item > - -Numerical comparison. When one of the operand is not a BigDecimal, it is -converted to BigDecimal by using ToString(). Hence comparisons between -Number and BigDecimal do not use the exact mathematical value of the -Number value. - -@end table - -@section BigDecimal literals - -BigDecimal literals are decimal floating point numbers with a trailing -@code{m} suffix. - -@section Builtin Object changes - -@subsection The @code{BigDecimal} function. - -It returns @code{0m} if no parameter is provided. Otherwise the first -parameter is converted to a bigdecimal by using ToString(). Hence -Number values are not converted to their exact numerical value as -BigDecimal. - -@subsection Properties of the @code{BigDecimal} object - -@table @code - -@item add(a, b[, e]) -@item sub(a, b[, e]) -@item mul(a, b[, e]) -@item div(a, b[, e]) -@item mod(a, b[, e]) -@item sqrt(a, e) -@item round(a, e) -Perform the specified floating point operation and round the floating -point result according to the rounding object @code{e}. If the -rounding object is not present, the operation is executed with -infinite precision. - -For @code{div}, a @code{RangeError} exception is thrown in case of -division by zero or if the result cannot be represented with infinite -precision if no rounding object is present. - -For @code{sqrt}, a range error is thrown if @code{a} is less than -zero. - -The rounding object must contain the following properties: -@code{roundingMode} is a string specifying the rounding mode -(@code{"floor"}, @code{"ceiling"}, @code{"down"}, @code{"up"}, -@code{"half-even"}, @code{"half-up"}). Either -@code{maximumSignificantDigits} or @code{maximumFractionDigits} must -be present to specify respectively the number of significant digits -(must be >= 1) or the number of digits after the decimal point (must -be >= 0). - -@end table - -@subsection Properties of the @code{BigDecimal.prototype} object - -@table @code -@item valueOf() -Return the bigdecimal primitive value corresponding to @code{this}. - -@item toString() -Convert @code{this} to a string with infinite precision in base 10. - -@item toPrecision(p, rnd_mode = "half-up") -@item toFixed(p, rnd_mode = "half-up") -@item toExponential(p, rnd_mode = "half-up") -Convert the BigDecimal @code{this} to string with the specified -precision @code{p}. There is no limit on the accepted precision -@code{p}. The rounding mode can be optionally -specified. @code{toPrecision} outputs either in decimal fixed notation -or in decimal exponential notation with a @code{p} digits of -precision. @code{toExponential} outputs in decimal exponential -notation with @code{p} digits after the decimal point. @code{toFixed} -outputs in decimal notation with @code{p} digits after the decimal -point. - -@end table - -@chapter Math mode - -A new @emph{math mode} is enabled with the @code{"use math"} -directive. It propagates the same way as the @emph{strict mode}. It is -designed so that arbitrarily large integers and floating point numbers -are available by default. In order to minimize the number of changes -in the Javascript semantics, integers are represented either as Number -or BigInt depending on their magnitude. Floating point numbers are -always represented as BigFloat. - -The following changes are made to the Javascript semantics: - -@itemize - -@item Floating point literals (i.e. number with a decimal point or an exponent) are @code{BigFloat} by default (i.e. a @code{l} suffix is implied). Hence @code{typeof 1.0 === "bigfloat"}. - -@item Integer literals (i.e. numbers without a decimal point or an exponent) with or without the @code{n} suffix are @code{BigInt} if their value cannot be represented as a safe integer. A safe integer is defined as a integer whose absolute value is smaller or equal to @code{2**53-1}. Hence @code{typeof 1 === "number "}, @code{typeof 1n === "number"} but @code{typeof 9007199254740992 === "bigint" }. - -@item All the bigint builtin operators and functions are modified so that their result is returned as a Number if it is a safe integer. Otherwise the result stays a BigInt. - -@item The builtin operators are modified so that they return an exact result (which can be a BigInt) if their operands are safe integers. Operands between Number and BigInt are accepted provided the Number operand is a safe integer. The integer power with a negative exponent returns a BigFloat as result. The integer division returns a BigFloat as result. - -@item The @code{^} operator is an alias to the power operator (@code{**}). - -@item The power operator (both @code{^} and @code{**}) grammar is modified so that @code{-2^2} is allowed and yields @code{-4}. - -@item The logical xor operator is still available with the @code{^^} operator. - -@item The modulo operator (@code{%}) returns the Euclidian remainder (always positive) instead of the truncated remainder. - -@item The integer division operator can be overloaded with @code{Operators.updateBigIntOperators(dictionary)}. - -@item The integer power operator with a non zero negative exponent can be overloaded with @code{Operators.updateBigIntOperators(dictionary)}. - -@end itemize - -@bye diff --git a/deps/quickjs/doc/quickjs.html b/deps/quickjs/doc/quickjs.html deleted file mode 100644 index 1ac9c547..00000000 --- a/deps/quickjs/doc/quickjs.html +++ /dev/null @@ -1,1410 +0,0 @@ - - - - -QuickJS Javascript Engine - - - - - - - - - - - - - - - -

QuickJS Javascript Engine

- - -

Table of Contents

- -
- -
- - - -

1 Introduction

- -

QuickJS is a small and embeddable Javascript engine. It supports most of the -ES2023 specification -1 -including modules, asynchronous generators, proxies and BigInt. -

-

It supports mathematical extensions such as big decimal float float -numbers (BigDecimal), big binary floating point numbers (BigFloat), -and operator overloading. -

- -

1.1 Main Features

- -
    -
  • Small and easily embeddable: just a few C files, no external dependency, 210 KiB of x86 code for a simple “hello world” program. - -
  • Fast interpreter with very low startup time: runs the 77000 tests of the ECMAScript Test Suite2 in less than 2 minutes on a single core of a desktop PC. The complete life cycle of a runtime instance completes in less than 300 microseconds. - -
  • Almost complete ES2023 support including modules, asynchronous -generators and full Annex B support (legacy web compatibility). Some -features from the upcoming ES2024 specification -3 are also supported. - -
  • Passes nearly 100% of the ECMAScript Test Suite tests when selecting the ES2023 features. - -
  • Compile Javascript sources to executables with no external dependency. - -
  • Garbage collection using reference counting (to reduce memory usage and have deterministic behavior) with cycle removal. - -
  • Mathematical extensions: BigDecimal, BigFloat, operator overloading, bigint mode, math mode. - -
  • Command line interpreter with contextual colorization and completion implemented in Javascript. - -
  • Small built-in standard library with C library wrappers. - -
- - -

2 Usage

- - -

2.1 Installation

- -

A Makefile is provided to compile the engine on Linux or MacOS/X. A -preliminary Windows support is available thru cross compilation on a -Linux host with the MingGW tools. -

-

Edit the top of the Makefile if you wish to select specific -options then run make. -

-

You can type make install as root if you wish to install the binaries and support files to -/usr/local (this is not necessary to use QuickJS). -

-

Note: On some OSes atomic operations are not available or need a -specific library. If you get related errors, you should either add --latomics in the Makefile LIBS variable or disable -CONFIG_ATOMICS in quickjs.c. -

- -

2.2 Quick start

- -

qjs is the command line interpreter (Read-Eval-Print Loop). You can pass -Javascript files and/or expressions as arguments to execute them: -

-
-
./qjs examples/hello.js
-
- -

qjsc is the command line compiler: -

-
-
./qjsc -o hello examples/hello.js
-./hello
-
- -

generates a hello executable with no external dependency. -

- -

2.3 Command line options

- - -

2.3.1 qjs interpreter

- -
usage: qjs [options] [file [args]]
-
-

Options are: -

-
-h
-
--help
-

List options. -

-
-
-e EXPR
-
--eval EXPR
-

Evaluate EXPR. -

-
-
-i
-
--interactive
-

Go to interactive mode (it is not the default when files are provided on the command line). -

-
-
-m
-
--module
-

Load as ES6 module (default=autodetect). A module is autodetected if -the filename extension is .mjs or if the first keyword of the -source is import. -

-
-
--script
-

Load as ES6 script (default=autodetect). -

-
-
--bignum
-

Enable the bignum extensions: BigDecimal object, BigFloat object and -the "use math" directive. -

-
-
-I file
-
--include file
-

Include an additional file. -

-
-
- -

Advanced options are: -

-
-
--std
-

Make the std and os modules available to the loaded -script even if it is not a module. -

-
-
-d
-
--dump
-

Dump the memory usage stats. -

-
-
-q
-
--quit
-

just instantiate the interpreter and quit. -

-
-
- - -

2.3.2 qjsc compiler

- -
usage: qjsc [options] [files]
-
-

Options are: -

-
-c
-

Only output bytecode in a C file. The default is to output an executable file. -

-
-e
-

Output main() and bytecode in a C file. The default is to output an -executable file. -

-
-o output
-

Set the output filename (default = out.c or a.out). -

-
-
-N cname
-

Set the C name of the generated data. -

-
-
-m
-

Compile as Javascript module (default=autodetect). -

-
-
-D module_name
-

Compile a dynamically loaded module and its dependencies. This option -is needed when your code uses the import keyword or the -os.Worker constructor because the compiler cannot statically -find the name of the dynamically loaded modules. -

-
-
-M module_name[,cname]
-

Add initialization code for an external C module. See the -c_module example. -

-
-
-x
-

Byte swapped output (only used for cross compilation). -

-
-
-flto
-

Use link time optimization. The compilation is slower but the -executable is smaller and faster. This option is automatically set -when the -fno-x options are used. -

-
-
-fno-[eval|string-normalize|regexp|json|proxy|map|typedarray|promise|bigint]
-

Disable selected language features to produce a smaller executable file. -

-
-
-fbignum
-

Enable the bignum extensions: BigDecimal object, BigFloat object and -the "use math" directive. -

-
-
- - -

2.4 qjscalc application

- -

The qjscalc application is a superset of the qjs -command line interpreter implementing a Javascript calculator with -arbitrarily large integer and floating point numbers, fractions, -complex numbers, polynomials and matrices. The source code is in -qjscalc.js. More documentation and a web version are available at -http://numcalc.com. -

- -

2.5 Built-in tests

- -

Run make test to run the few built-in tests included in the -QuickJS archive. -

- -

2.6 Test262 (ECMAScript Test Suite)

- -

A test262 runner is included in the QuickJS archive. The test262 tests -can be installed in the QuickJS source directory with: -

-
-
git clone https://github.com/tc39/test262.git test262
-cd test262
-patch -p1 < ../tests/test262.patch
-cd ..
-
- -

The patch adds the implementation specific harness functions -and optimizes the inefficient RegExp character classes and Unicode -property escapes tests (the tests themselves are not modified, only a -slow string initialization function is optimized). -

-

The tests can be run with -

-
make test2
-
- -

The configuration files test262.conf -(resp. test262o.conf for the old ES5.1 tests4)) -contain the options to run the various tests. Tests can be excluded -based on features or filename. -

-

The file test262_errors.txt contains the current list of -errors. The runner displays a message when a new error appears or when -an existing error is corrected or modified. Use the -u option -to update the current list of errors (or make test2-update). -

-

The file test262_report.txt contains the logs of all the -tests. It is useful to have a clearer analysis of a particular -error. In case of crash, the last line corresponds to the failing -test. -

-

Use the syntax ./run-test262 -c test262.conf -f filename.js to -run a single test. Use the syntax ./run-test262 -c test262.conf -N to start testing at test number N. -

-

For more information, run ./run-test262 to see the command line -options of the test262 runner. -

-

run-test262 accepts the -N option to be invoked from -test262-harness5 -thru eshost. Unless you want to compare QuickJS with other -engines under the same conditions, we do not recommend to run the -tests this way as it is much slower (typically half an hour instead of -about 100 seconds). -

- -

3 Specifications

- - -

3.1 Language support

- - -

3.1.1 ES2023 support

- -

The ES2023 specification is almost fully supported including the Annex -B (legacy web compatibility) and the Unicode related features. -

-

The following features are not supported yet: -

-
    -
  • Tail calls6 - -
  • WeakRef and FinalizationRegistry objects - -
  • Symbols as WeakMap keys - -
- - -

3.1.2 ECMA402

- -

ECMA402 (Internationalization API) is not supported. -

- -

3.1.3 Extensions

- -
    -
  • The directive "use strip" indicates that the debug information (including the source code of the functions) should not be retained to save memory. As "use strict", the directive can be global to a script or local to a function. - -
  • The first line of a script beginning with #! is ignored. - -
- - -

3.1.4 Mathematical extensions

- -

The mathematical extensions are fully backward compatible with -standard Javascript. See jsbignum.pdf for more information. -

-
    -
  • BigDecimal support: arbitrary large floating point numbers in base 10. - -
  • BigFloat support: arbitrary large floating point numbers in base 2. - -
  • Operator overloading. - -
  • The directive "use bigint" enables the bigint mode where integers are BigInt by default. - -
  • The directive "use math" enables the math mode where the division and power operators on integers produce fractions. Floating point literals are BigFloat by default and integers are BigInt by default. - -
- - -

3.2 Modules

- -

ES6 modules are fully supported. The default name resolution is the -following: -

-
    -
  • Module names with a leading . or .. are relative -to the current module path. - -
  • Module names without a leading . or .. are system -modules, such as std or os. - -
  • Module names ending with .so are native modules using the -QuickJS C API. - -
- - -

3.3 Standard library

- -

The standard library is included by default in the command line -interpreter. It contains the two modules std and os and -a few global objects. -

- -

3.3.1 Global objects

- -
-
scriptArgs
-

Provides the command line arguments. The first argument is the script name. -

-
print(...args)
-

Print the arguments separated by spaces and a trailing newline. -

-
console.log(...args)
-

Same as print(). -

-
-
- - -

3.3.2 std module

- -

The std module provides wrappers to the libc stdlib.h -and stdio.h and a few other utilities. -

-

Available exports: -

-
-
exit(n)
-

Exit the process. -

-
-
evalScript(str, options = undefined)
-

Evaluate the string str as a script (global -eval). options is an optional object containing the following -optional properties: -

-
-
backtrace_barrier
-

Boolean (default = false). If true, error backtraces do not list the - stack frames below the evalScript. -

-
async
-

Boolean (default = false). If true, await is accepted in the - script and a promise is returned. -

-
- -
-
loadScript(filename)
-

Evaluate the file filename as a script (global eval). -

-
-
loadFile(filename)
-

Load the file filename and return it as a string assuming UTF-8 -encoding. Return null in case of I/O error. -

-
-
open(filename, flags, errorObj = undefined)
-

Open a file (wrapper to the libc fopen()). Return the FILE -object or null in case of I/O error. If errorObj is not -undefined, set its errno property to the error code or to 0 if -no error occured. -

-
-
popen(command, flags, errorObj = undefined)
-

Open a process by creating a pipe (wrapper to the libc -popen()). Return the FILE -object or null in case of I/O error. If errorObj is not -undefined, set its errno property to the error code or to 0 if -no error occured. -

-
-
fdopen(fd, flags, errorObj = undefined)
-

Open a file from a file handle (wrapper to the libc -fdopen()). Return the FILE -object or null in case of I/O error. If errorObj is not -undefined, set its errno property to the error code or to 0 if -no error occured. -

-
-
tmpfile(errorObj = undefined)
-

Open a temporary file. Return the FILE -object or null in case of I/O error. If errorObj is not -undefined, set its errno property to the error code or to 0 if -no error occured. -

-
-
puts(str)
-

Equivalent to std.out.puts(str). -

-
-
printf(fmt, ...args)
-

Equivalent to std.out.printf(fmt, ...args). -

-
-
sprintf(fmt, ...args)
-

Equivalent to the libc sprintf(). -

-
-
in
-
out
-
err
-

Wrappers to the libc file stdin, stdout, stderr. -

-
-
SEEK_SET
-
SEEK_CUR
-
SEEK_END
-

Constants for seek(). -

-
-
Error
-
-

Enumeration object containing the integer value of common errors -(additional error codes may be defined): -

-
-
EINVAL
-
EIO
-
EACCES
-
EEXIST
-
ENOSPC
-
ENOSYS
-
EBUSY
-
ENOENT
-
EPERM
-
EPIPE
-
- -
-
strerror(errno)
-

Return a string that describes the error errno. -

-
-
gc()
-

Manually invoke the cycle removal algorithm. The cycle removal -algorithm is automatically started when needed, so this function is -useful in case of specific memory constraints or for testing. -

-
-
getenv(name)
-

Return the value of the environment variable name or -undefined if it is not defined. -

-
-
setenv(name, value)
-

Set the value of the environment variable name to the string -value. -

-
-
unsetenv(name)
-

Delete the environment variable name. -

-
-
getenviron()
-

Return an object containing the environment variables as key-value pairs. -

-
-
urlGet(url, options = undefined)
-
-

Download url using the curl command line -utility. options is an optional object containing the following -optional properties: -

-
-
binary
-

Boolean (default = false). If true, the response is an ArrayBuffer - instead of a string. When a string is returned, the data is assumed - to be UTF-8 encoded. -

-
-
full
-
-

Boolean (default = false). If true, return the an object contains - the properties response (response content), - responseHeaders (headers separated by CRLF), status - (status code). response is null is case of protocol or - network error. If full is false, only the response is - returned if the status is between 200 and 299. Otherwise null - is returned. -

-
-
- -
-
parseExtJSON(str)
-
-

Parse str using a superset of JSON.parse. The - following extensions are accepted: -

-
    -
  • Single line and multiline comments -
  • unquoted properties (ASCII-only Javascript identifiers) -
  • trailing comma in array and object definitions -
  • single quoted strings -
  • \f and \v are accepted as space characters -
  • leading plus in numbers -
  • octal (0o prefix) and hexadecimal (0x prefix) numbers -
-
-
- -

FILE prototype: -

-
-
close()
-

Close the file. Return 0 if OK or -errno in case of I/O error. -

-
puts(str)
-

Outputs the string with the UTF-8 encoding. -

-
printf(fmt, ...args)
-

Formatted printf. -

-

The same formats as the standard C library printf are -supported. Integer format types (e.g. %d) truncate the Numbers -or BigInts to 32 bits. Use the l modifier (e.g. %ld) to -truncate to 64 bits. -

-
-
flush()
-

Flush the buffered file. -

-
seek(offset, whence)
-

Seek to a give file position (whence is -std.SEEK_*). offset can be a number or a bigint. Return -0 if OK or -errno in case of I/O error. -

-
tell()
-

Return the current file position. -

-
tello()
-

Return the current file position as a bigint. -

-
eof()
-

Return true if end of file. -

-
fileno()
-

Return the associated OS handle. -

-
error()
-

Return true if there was an error. -

-
clearerr()
-

Clear the error indication. -

-
-
read(buffer, position, length)
-

Read length bytes from the file to the ArrayBuffer buffer at byte -position position (wrapper to the libc fread). -

-
-
write(buffer, position, length)
-

Write length bytes to the file from the ArrayBuffer buffer at byte -position position (wrapper to the libc fwrite). -

-
-
getline()
-

Return the next line from the file, assuming UTF-8 encoding, excluding -the trailing line feed. -

-
-
readAsString(max_size = undefined)
-

Read max_size bytes from the file and return them as a string -assuming UTF-8 encoding. If max_size is not present, the file -is read up its end. -

-
-
getByte()
-

Return the next byte from the file. Return -1 if the end of file is reached. -

-
-
putByte(c)
-

Write one byte to the file. -

-
- - -

3.3.3 os module

- -

The os module provides Operating System specific functions: -

-
    -
  • low level file access -
  • signals -
  • timers -
  • asynchronous I/O -
  • workers (threads) -
- -

The OS functions usually return 0 if OK or an OS specific negative -error code. -

-

Available exports: -

-
-
open(filename, flags, mode = 0o666)
-

Open a file. Return a handle or < 0 if error. -

-
-
O_RDONLY
-
O_WRONLY
-
O_RDWR
-
O_APPEND
-
O_CREAT
-
O_EXCL
-
O_TRUNC
-

POSIX open flags. -

-
-
O_TEXT
-

(Windows specific). Open the file in text mode. The default is binary mode. -

-
-
close(fd)
-

Close the file handle fd. -

-
-
seek(fd, offset, whence)
-

Seek in the file. Use std.SEEK_* for -whence. offset is either a number or a bigint. If -offset is a bigint, a bigint is returned too. -

-
-
read(fd, buffer, offset, length)
-

Read length bytes from the file handle fd to the -ArrayBuffer buffer at byte position offset. -Return the number of read bytes or < 0 if error. -

-
-
write(fd, buffer, offset, length)
-

Write length bytes to the file handle fd from the -ArrayBuffer buffer at byte position offset. -Return the number of written bytes or < 0 if error. -

-
-
isatty(fd)
-

Return true is fd is a TTY (terminal) handle. -

-
-
ttyGetWinSize(fd)
-

Return the TTY size as [width, height] or null if not available. -

-
-
ttySetRaw(fd)
-

Set the TTY in raw mode. -

-
-
remove(filename)
-

Remove a file. Return 0 if OK or -errno. -

-
-
rename(oldname, newname)
-

Rename a file. Return 0 if OK or -errno. -

-
-
realpath(path)
-

Return [str, err] where str is the canonicalized absolute -pathname of path and err the error code. -

-
-
getcwd()
-

Return [str, err] where str is the current working directory -and err the error code. -

-
-
chdir(path)
-

Change the current directory. Return 0 if OK or -errno. -

-
-
mkdir(path, mode = 0o777)
-

Create a directory at path. Return 0 if OK or -errno. -

-
-
stat(path)
-
lstat(path)
-
-

Return [obj, err] where obj is an object containing the -file status of path. err is the error code. The -following fields are defined in obj: dev, ino, mode, nlink, -uid, gid, rdev, size, blocks, atime, mtime, ctime. The times are -specified in milliseconds since 1970. lstat() is the same as -stat() excepts that it returns information about the link -itself. -

-
-
S_IFMT
-
S_IFIFO
-
S_IFCHR
-
S_IFDIR
-
S_IFBLK
-
S_IFREG
-
S_IFSOCK
-
S_IFLNK
-
S_ISGID
-
S_ISUID
-

Constants to interpret the mode property returned by -stat(). They have the same value as in the C system header -sys/stat.h. -

-
-
utimes(path, atime, mtime)
-

Change the access and modification times of the file path. The -times are specified in milliseconds since 1970. Return 0 if OK or -errno. -

-
-
symlink(target, linkpath)
-

Create a link at linkpath containing the string target. Return 0 if OK or -errno. -

-
-
readlink(path)
-

Return [str, err] where str is the link target and err -the error code. -

-
-
readdir(path)
-

Return [array, err] where array is an array of strings -containing the filenames of the directory path. err is -the error code. -

-
-
setReadHandler(fd, func)
-

Add a read handler to the file handle fd. func is called -each time there is data pending for fd. A single read handler -per file handle is supported. Use func = null to remove the -handler. -

-
-
setWriteHandler(fd, func)
-

Add a write handler to the file handle fd. func is -called each time data can be written to fd. A single write -handler per file handle is supported. Use func = null to remove -the handler. -

-
-
signal(signal, func)
-

Call the function func when the signal signal -happens. Only a single handler per signal number is supported. Use -null to set the default handler or undefined to ignore -the signal. Signal handlers can only be defined in the main thread. -

-
-
SIGINT
-
SIGABRT
-
SIGFPE
-
SIGILL
-
SIGSEGV
-
SIGTERM
-

POSIX signal numbers. -

-
-
kill(pid, sig)
-

Send the signal sig to the process pid. -

-
-
exec(args[, options])
-

Execute a process with the arguments args. options is an -object containing optional parameters: -

-
-
block
-

Boolean (default = true). If true, wait until the process is - terminated. In this case, exec return the exit code if positive - or the negated signal number if the process was interrupted by a - signal. If false, do not block and return the process id of the child. -

-
-
usePath
-

Boolean (default = true). If true, the file is searched in the - PATH environment variable. -

-
-
file
-

String (default = args[0]). Set the file to be executed. -

-
-
cwd
-

String. If present, set the working directory of the new process. -

-
-
stdin
-
stdout
-
stderr
-

If present, set the handle in the child for stdin, stdout or stderr. -

-
-
env
-

Object. If present, set the process environment from the object - key-value pairs. Otherwise use the same environment as the current - process. -

-
-
uid
-

Integer. If present, the process uid with setuid. -

-
-
gid
-

Integer. If present, the process gid with setgid. -

-
-
- -
-
getpid()
-

Return the current process ID. -

-
-
waitpid(pid, options)
-

waitpid Unix system call. Return the array [ret, -status]. ret contains -errno in case of error. -

-
-
WNOHANG
-

Constant for the options argument of waitpid. -

-
-
dup(fd)
-

dup Unix system call. -

-
-
dup2(oldfd, newfd)
-

dup2 Unix system call. -

-
-
pipe()
-

pipe Unix system call. Return two handles as [read_fd, -write_fd] or null in case of error. -

-
-
sleep(delay_ms)
-

Sleep during delay_ms milliseconds. -

-
-
sleepAsync(delay_ms)
-

Asynchronouse sleep during delay_ms milliseconds. Returns a promise. Example: -

-
await os.sleepAsync(500);
-
- -
-
now()
-

Return a timestamp in milliseconds with more precision than -Date.now(). The time origin is unspecified and is normally not -impacted by system clock adjustments. -

-
-
setTimeout(func, delay)
-

Call the function func after delay ms. Return a handle -to the timer. -

-
-
clearTimeout(handle)
-

Cancel a timer. -

-
-
platform
-

Return a string representing the platform: "linux", "darwin", -"win32" or "js". -

-
-
Worker(module_filename)
-

Constructor to create a new thread (worker) with an API close to the -WebWorkers. module_filename is a string specifying the -module filename which is executed in the newly created thread. As for -dynamically imported module, it is relative to the current script or -module path. Threads normally don’t share any data and communicate -between each other with messages. Nested workers are not supported. An -example is available in tests/test_worker.js. -

-

The worker class has the following static properties: -

-
-
parent
-

In the created worker, Worker.parent represents the parent - worker and is used to send or receive messages. -

-
- -

The worker instances have the following properties: -

-
-
postMessage(msg)
-
-

Send a message to the corresponding worker. msg is cloned in - the destination worker using an algorithm similar to the HTML - structured clone algorithm. SharedArrayBuffer are shared - between workers. -

-

Current limitations: Map and Set are not supported - yet. -

-
-
onmessage
-
-

Getter and setter. Set a function which is called each time a - message is received. The function is called with a single - argument. It is an object with a data property containing the - received message. The thread is not terminated if there is at least - one non null onmessage handler. -

-
-
- -
-
- - -

3.4 QuickJS C API

- -

The C API was designed to be simple and efficient. The C API is -defined in the header quickjs.h. -

- -

3.4.1 Runtime and contexts

- -

JSRuntime represents a Javascript runtime corresponding to an -object heap. Several runtimes can exist at the same time but they -cannot exchange objects. Inside a given runtime, no multi-threading is -supported. -

-

JSContext represents a Javascript context (or Realm). Each -JSContext has its own global objects and system objects. There can be -several JSContexts per JSRuntime and they can share objects, similar -to frames of the same origin sharing Javascript objects in a -web browser. -

- -

3.4.2 JSValue

- -

JSValue represents a Javascript value which can be a primitive -type or an object. Reference counting is used, so it is important to -explicitly duplicate (JS_DupValue(), increment the reference -count) or free (JS_FreeValue(), decrement the reference count) -JSValues. -

- -

3.4.3 C functions

- -

C functions can be created with -JS_NewCFunction(). JS_SetPropertyFunctionList() is a -shortcut to easily add functions, setters and getters properties to a -given object. -

-

Unlike other embedded Javascript engines, there is no implicit stack, -so C functions get their parameters as normal C parameters. As a -general rule, C functions take constant JSValues as parameters -(so they don’t need to free them) and return a newly allocated (=live) -JSValue. -

- -

3.4.4 Exceptions

- -

Exceptions: most C functions can return a Javascript exception. It -must be explicitly tested and handled by the C code. The specific -JSValue JS_EXCEPTION indicates that an exception -occurred. The actual exception object is stored in the -JSContext and can be retrieved with JS_GetException(). -

- -

3.4.5 Script evaluation

- -

Use JS_Eval() to evaluate a script or module source. -

-

If the script or module was compiled to bytecode with qjsc, it -can be evaluated by calling js_std_eval_binary(). The advantage -is that no compilation is needed so it is faster and smaller because -the compiler can be removed from the executable if no eval is -required. -

-

Note: the bytecode format is linked to a given QuickJS -version. Moreover, no security check is done before its -execution. Hence the bytecode should not be loaded from untrusted -sources. That’s why there is no option to output the bytecode to a -binary file in qjsc. -

- -

3.4.6 JS Classes

- -

C opaque data can be attached to a Javascript object. The type of the -C opaque data is determined with the class ID (JSClassID) of -the object. Hence the first step is to register a new class ID and JS -class (JS_NewClassID(), JS_NewClass()). Then you can -create objects of this class with JS_NewObjectClass() and get or -set the C opaque point with -JS_GetOpaque()/JS_SetOpaque(). -

-

When defining a new JS class, it is possible to declare a finalizer -which is called when the object is destroyed. The finalizer should be -used to release C resources. It is invalid to execute JS code from -it. A gc_mark method can be provided so that the cycle removal -algorithm can find the other objects referenced by this object. Other -methods are available to define exotic object behaviors. -

-

The Class ID are globally allocated (i.e. for all runtimes). The -JSClass are allocated per JSRuntime. JS_SetClassProto() -is used to define a prototype for a given class in a given -JSContext. JS_NewObjectClass() sets this prototype in the -created object. -

-

Examples are available in quickjs-libc.c. -

- -

3.4.7 C Modules

- -

Native ES6 modules are supported and can be dynamically or statically -linked. Look at the test_bjson and bjson.so -examples. The standard library quickjs-libc.c is also a good example -of a native module. -

- -

3.4.8 Memory handling

- -

Use JS_SetMemoryLimit() to set a global memory allocation limit -to a given JSRuntime. -

-

Custom memory allocation functions can be provided with -JS_NewRuntime2(). -

-

The maximum system stack size can be set with JS_SetMaxStackSize(). -

- -

3.4.9 Execution timeout and interrupts

- -

Use JS_SetInterruptHandler() to set a callback which is -regularly called by the engine when it is executing code. This -callback can be used to implement an execution timeout. -

-

It is used by the command line interpreter to implement a -Ctrl-C handler. -

- -

4 Internals

- - -

4.1 Bytecode

- -

The compiler generates bytecode directly with no intermediate -representation such as a parse tree, hence it is very fast. Several -optimizations passes are done over the generated bytecode. -

-

A stack-based bytecode was chosen because it is simple and generates -compact code. -

-

For each function, the maximum stack size is computed at compile time so that -no runtime stack overflow tests are needed. -

-

A separate compressed line number table is maintained for the debug -information. -

-

Access to closure variables is optimized and is almost as fast as local -variables. -

-

Direct eval in strict mode is optimized. -

- -

4.2 Executable generation

- - -

4.2.1 qjsc compiler

- -

The qjsc compiler generates C sources from Javascript files. By -default the C sources are compiled with the system compiler -(gcc or clang). -

-

The generated C source contains the bytecode of the compiled functions -or modules. If a full complete executable is needed, it also -contains a main() function with the necessary C code to initialize the -Javascript engine and to load and execute the compiled functions and -modules. -

-

Javascript code can be mixed with C modules. -

-

In order to have smaller executables, specific Javascript features can -be disabled, in particular eval or the regular expressions. The -code removal relies on the Link Time Optimization of the system -compiler. -

- -

4.2.2 Binary JSON

- -

qjsc works by compiling scripts or modules and then serializing -them to a binary format. A subset of this format (without functions or -modules) can be used as binary JSON. The example test_bjson.js -shows how to use it. -

-

Warning: the binary JSON format may change without notice, so it -should not be used to store persistent data. The test_bjson.js -example is only used to test the binary object format functions. -

- -

4.3 Runtime

- - -

4.3.1 Strings

- -

Strings are stored either as an 8 bit or a 16 bit array of -characters. Hence random access to characters is always fast. -

-

The C API provides functions to convert Javascript Strings to C UTF-8 encoded -strings. The most common case where the Javascript string contains -only ASCII characters involves no copying. -

- -

4.3.2 Objects

- -

The object shapes (object prototype, property names and flags) are shared -between objects to save memory. -

-

Arrays with no holes (except at the end of the array) are optimized. -

-

TypedArray accesses are optimized. -

- -

4.3.3 Atoms

- -

Object property names and some strings are stored as Atoms (unique -strings) to save memory and allow fast comparison. Atoms are -represented as a 32 bit integer. Half of the atom range is reserved for -immediate integer literals from 0 to 2^{31}-1. -

- -

4.3.4 Numbers

- -

Numbers are represented either as 32-bit signed integers or 64-bit IEEE-754 -floating point values. Most operations have fast paths for the 32-bit -integer case. -

- -

4.3.5 Garbage collection

- -

Reference counting is used to free objects automatically and -deterministically. A separate cycle removal pass is done when the allocated -memory becomes too large. The cycle removal algorithm only uses the -reference counts and the object content, so no explicit garbage -collection roots need to be manipulated in the C code. -

- -

4.3.6 JSValue

- -

It is a Javascript value which can be a primitive type (such as -Number, String, ...) or an Object. NaN boxing is used in the 32-bit version -to store 64-bit floating point numbers. The representation is -optimized so that 32-bit integers and reference counted values can be -efficiently tested. -

-

In 64-bit code, JSValue are 128-bit large and no NaN boxing is used. The -rationale is that in 64-bit code memory usage is less critical. -

-

In both cases (32 or 64 bits), JSValue exactly fits two CPU registers, -so it can be efficiently returned by C functions. -

- -

4.3.7 Function call

- -

The engine is optimized so that function calls are fast. The system -stack holds the Javascript parameters and local variables. -

- -

4.4 RegExp

- -

A specific regular expression engine was developed. It is both small -and efficient and supports all the ES2023 features including the -Unicode properties. As the Javascript compiler, it directly generates -bytecode without a parse tree. -

-

Backtracking with an explicit stack is used so that there is no -recursion on the system stack. Simple quantifiers are specifically -optimized to avoid recursions. -

-

The full regexp library weights about 15 KiB (x86 code), excluding the -Unicode library. -

- -

4.5 Unicode

- -

A specific Unicode library was developed so that there is no -dependency on an external large Unicode library such as ICU. All the -Unicode tables are compressed while keeping a reasonable access -speed. -

-

The library supports case conversion, Unicode normalization, Unicode -script queries, Unicode general category queries and all Unicode -binary properties. -

-

The full Unicode library weights about 45 KiB (x86 code). -

- -

4.6 BigInt, BigFloat, BigDecimal

- -

BigInt, BigFloat and BigDecimal are implemented with the libbf -library7. It weights about 90 -KiB (x86 code) and provides arbitrary precision IEEE 754 floating -point operations and transcendental functions with exact rounding. -

- -

5 License

- -

QuickJS is released under the MIT license. -

-

Unless otherwise specified, the QuickJS sources are copyright Fabrice -Bellard and Charlie Gordon. -

-
-
-

Footnotes

- -

(1)

-

https://tc39.es/ecma262/2023

-

(2)

-

https://github.com/tc39/test262

-

(3)

-

https://tc39.es/ecma262/

-

(4)

-

The old -ES5.1 tests can be extracted with git clone --single-branch ---branch es5-tests https://github.com/tc39/test262.git test262o

-

(5)

-

https://github.com/bterlson/test262-harness

-

(6)

-

We believe the current specification of tails calls is too complicated and presents limited practical interests.

-

(7)

-

https://bellard.org/libbf

-
-
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It supports most of the -ES2023 specification -@footnote{@url{https://tc39.es/ecma262/2023 }} -including modules, asynchronous generators, proxies and BigInt. - -It supports mathematical extensions such as big decimal float float -numbers (BigDecimal), big binary floating point numbers (BigFloat), -and operator overloading. - -@section Main Features - -@itemize - -@item Small and easily embeddable: just a few C files, no external dependency, 210 KiB of x86 code for a simple ``hello world'' program. - -@item Fast interpreter with very low startup time: runs the 77000 tests of the ECMAScript Test Suite@footnote{@url{https://github.com/tc39/test262}} in less than 2 minutes on a single core of a desktop PC. The complete life cycle of a runtime instance completes in less than 300 microseconds. - -@item Almost complete ES2023 support including modules, asynchronous -generators and full Annex B support (legacy web compatibility). Some -features from the upcoming ES2024 specification -@footnote{@url{https://tc39.es/ecma262/}} are also supported. - -@item Passes nearly 100% of the ECMAScript Test Suite tests when selecting the ES2023 features. - -@item Compile Javascript sources to executables with no external dependency. - -@item Garbage collection using reference counting (to reduce memory usage and have deterministic behavior) with cycle removal. - -@item Mathematical extensions: BigDecimal, BigFloat, operator overloading, bigint mode, math mode. - -@item Command line interpreter with contextual colorization and completion implemented in Javascript. - -@item Small built-in standard library with C library wrappers. - -@end itemize - -@chapter Usage - -@section Installation - -A Makefile is provided to compile the engine on Linux or MacOS/X. A -preliminary Windows support is available thru cross compilation on a -Linux host with the MingGW tools. - -Edit the top of the @code{Makefile} if you wish to select specific -options then run @code{make}. - -You can type @code{make install} as root if you wish to install the binaries and support files to -@code{/usr/local} (this is not necessary to use QuickJS). - -Note: On some OSes atomic operations are not available or need a -specific library. If you get related errors, you should either add -@code{-latomics} in the Makefile @code{LIBS} variable or disable -@code{CONFIG_ATOMICS} in @file{quickjs.c}. - -@section Quick start - -@code{qjs} is the command line interpreter (Read-Eval-Print Loop). You can pass -Javascript files and/or expressions as arguments to execute them: - -@example -./qjs examples/hello.js -@end example - -@code{qjsc} is the command line compiler: - -@example -./qjsc -o hello examples/hello.js -./hello -@end example - -generates a @code{hello} executable with no external dependency. - -@section Command line options - -@subsection @code{qjs} interpreter - -@verbatim -usage: qjs [options] [file [args]] -@end verbatim - -Options are: -@table @code -@item -h -@item --help -List options. - -@item -e @code{EXPR} -@item --eval @code{EXPR} -Evaluate EXPR. - -@item -i -@item --interactive -Go to interactive mode (it is not the default when files are provided on the command line). - -@item -m -@item --module -Load as ES6 module (default=autodetect). A module is autodetected if -the filename extension is @code{.mjs} or if the first keyword of the -source is @code{import}. - -@item --script -Load as ES6 script (default=autodetect). - -@item --bignum -Enable the bignum extensions: BigDecimal object, BigFloat object and -the @code{"use math"} directive. - -@item -I file -@item --include file -Include an additional file. - -@end table - -Advanced options are: - -@table @code -@item --std -Make the @code{std} and @code{os} modules available to the loaded -script even if it is not a module. - -@item -d -@item --dump -Dump the memory usage stats. - -@item -q -@item --quit -just instantiate the interpreter and quit. - -@end table - -@subsection @code{qjsc} compiler - -@verbatim -usage: qjsc [options] [files] -@end verbatim - -Options are: -@table @code -@item -c -Only output bytecode in a C file. The default is to output an executable file. -@item -e -Output @code{main()} and bytecode in a C file. The default is to output an -executable file. -@item -o output -Set the output filename (default = @file{out.c} or @file{a.out}). - -@item -N cname -Set the C name of the generated data. - -@item -m -Compile as Javascript module (default=autodetect). - -@item -D module_name -Compile a dynamically loaded module and its dependencies. This option -is needed when your code uses the @code{import} keyword or the -@code{os.Worker} constructor because the compiler cannot statically -find the name of the dynamically loaded modules. - -@item -M module_name[,cname] -Add initialization code for an external C module. See the -@code{c_module} example. - -@item -x -Byte swapped output (only used for cross compilation). - -@item -flto -Use link time optimization. The compilation is slower but the -executable is smaller and faster. This option is automatically set -when the @code{-fno-x} options are used. - -@item -fno-[eval|string-normalize|regexp|json|proxy|map|typedarray|promise|bigint] -Disable selected language features to produce a smaller executable file. - -@item -fbignum -Enable the bignum extensions: BigDecimal object, BigFloat object and -the @code{"use math"} directive. - -@end table - -@section @code{qjscalc} application - -The @code{qjscalc} application is a superset of the @code{qjs} -command line interpreter implementing a Javascript calculator with -arbitrarily large integer and floating point numbers, fractions, -complex numbers, polynomials and matrices. The source code is in -@file{qjscalc.js}. More documentation and a web version are available at -@url{http://numcalc.com}. - -@section Built-in tests - -Run @code{make test} to run the few built-in tests included in the -QuickJS archive. - -@section Test262 (ECMAScript Test Suite) - -A test262 runner is included in the QuickJS archive. The test262 tests -can be installed in the QuickJS source directory with: - -@example -git clone https://github.com/tc39/test262.git test262 -cd test262 -patch -p1 < ../tests/test262.patch -cd .. -@end example - -The patch adds the implementation specific @code{harness} functions -and optimizes the inefficient RegExp character classes and Unicode -property escapes tests (the tests themselves are not modified, only a -slow string initialization function is optimized). - -The tests can be run with -@example -make test2 -@end example - -The configuration files @code{test262.conf} -(resp. @code{test262o.conf} for the old ES5.1 tests@footnote{The old -ES5.1 tests can be extracted with @code{git clone --single-branch ---branch es5-tests https://github.com/tc39/test262.git test262o}})) -contain the options to run the various tests. Tests can be excluded -based on features or filename. - -The file @code{test262_errors.txt} contains the current list of -errors. The runner displays a message when a new error appears or when -an existing error is corrected or modified. Use the @code{-u} option -to update the current list of errors (or @code{make test2-update}). - -The file @code{test262_report.txt} contains the logs of all the -tests. It is useful to have a clearer analysis of a particular -error. In case of crash, the last line corresponds to the failing -test. - -Use the syntax @code{./run-test262 -c test262.conf -f filename.js} to -run a single test. Use the syntax @code{./run-test262 -c test262.conf -N} to start testing at test number @code{N}. - -For more information, run @code{./run-test262} to see the command line -options of the test262 runner. - -@code{run-test262} accepts the @code{-N} option to be invoked from -@code{test262-harness}@footnote{@url{https://github.com/bterlson/test262-harness}} -thru @code{eshost}. Unless you want to compare QuickJS with other -engines under the same conditions, we do not recommend to run the -tests this way as it is much slower (typically half an hour instead of -about 100 seconds). - -@chapter Specifications - -@section Language support - -@subsection ES2023 support - -The ES2023 specification is almost fully supported including the Annex -B (legacy web compatibility) and the Unicode related features. - -The following features are not supported yet: - -@itemize - -@item Tail calls@footnote{We believe the current specification of tails calls is too complicated and presents limited practical interests.} - -@item WeakRef and FinalizationRegistry objects - -@item Symbols as WeakMap keys - -@end itemize - -@subsection ECMA402 - -ECMA402 (Internationalization API) is not supported. - -@subsection Extensions - -@itemize - -@item The directive @code{"use strip"} indicates that the debug information (including the source code of the functions) should not be retained to save memory. As @code{"use strict"}, the directive can be global to a script or local to a function. - -@item The first line of a script beginning with @code{#!} is ignored. - -@end itemize - -@subsection Mathematical extensions - -The mathematical extensions are fully backward compatible with -standard Javascript. See @code{jsbignum.pdf} for more information. - -@itemize - -@item @code{BigDecimal} support: arbitrary large floating point numbers in base 10. - -@item @code{BigFloat} support: arbitrary large floating point numbers in base 2. - -@item Operator overloading. - -@item The directive @code{"use bigint"} enables the bigint mode where integers are @code{BigInt} by default. - -@item The directive @code{"use math"} enables the math mode where the division and power operators on integers produce fractions. Floating point literals are @code{BigFloat} by default and integers are @code{BigInt} by default. - -@end itemize - -@section Modules - -ES6 modules are fully supported. The default name resolution is the -following: - -@itemize - -@item Module names with a leading @code{.} or @code{..} are relative -to the current module path. - -@item Module names without a leading @code{.} or @code{..} are system -modules, such as @code{std} or @code{os}. - -@item Module names ending with @code{.so} are native modules using the -QuickJS C API. - -@end itemize - -@section Standard library - -The standard library is included by default in the command line -interpreter. It contains the two modules @code{std} and @code{os} and -a few global objects. - -@subsection Global objects - -@table @code -@item scriptArgs -Provides the command line arguments. The first argument is the script name. -@item print(...args) -Print the arguments separated by spaces and a trailing newline. -@item console.log(...args) -Same as print(). - -@end table - -@subsection @code{std} module - -The @code{std} module provides wrappers to the libc @file{stdlib.h} -and @file{stdio.h} and a few other utilities. - -Available exports: - -@table @code - -@item exit(n) -Exit the process. - -@item evalScript(str, options = undefined) -Evaluate the string @code{str} as a script (global -eval). @code{options} is an optional object containing the following -optional properties: - - @table @code - @item backtrace_barrier - Boolean (default = false). If true, error backtraces do not list the - stack frames below the evalScript. - @item async - Boolean (default = false). If true, @code{await} is accepted in the - script and a promise is returned. - @end table - -@item loadScript(filename) -Evaluate the file @code{filename} as a script (global eval). - -@item loadFile(filename) -Load the file @code{filename} and return it as a string assuming UTF-8 -encoding. Return @code{null} in case of I/O error. - -@item open(filename, flags, errorObj = undefined) -Open a file (wrapper to the libc @code{fopen()}). Return the FILE -object or @code{null} in case of I/O error. If @code{errorObj} is not -undefined, set its @code{errno} property to the error code or to 0 if -no error occured. - -@item popen(command, flags, errorObj = undefined) -Open a process by creating a pipe (wrapper to the libc -@code{popen()}). Return the FILE -object or @code{null} in case of I/O error. If @code{errorObj} is not -undefined, set its @code{errno} property to the error code or to 0 if -no error occured. - -@item fdopen(fd, flags, errorObj = undefined) -Open a file from a file handle (wrapper to the libc -@code{fdopen()}). Return the FILE -object or @code{null} in case of I/O error. If @code{errorObj} is not -undefined, set its @code{errno} property to the error code or to 0 if -no error occured. - -@item tmpfile(errorObj = undefined) -Open a temporary file. Return the FILE -object or @code{null} in case of I/O error. If @code{errorObj} is not -undefined, set its @code{errno} property to the error code or to 0 if -no error occured. - -@item puts(str) -Equivalent to @code{std.out.puts(str)}. - -@item printf(fmt, ...args) -Equivalent to @code{std.out.printf(fmt, ...args)}. - -@item sprintf(fmt, ...args) -Equivalent to the libc sprintf(). - -@item in -@item out -@item err -Wrappers to the libc file @code{stdin}, @code{stdout}, @code{stderr}. - -@item SEEK_SET -@item SEEK_CUR -@item SEEK_END -Constants for seek(). - -@item Error - -Enumeration object containing the integer value of common errors -(additional error codes may be defined): - - @table @code - @item EINVAL - @item EIO - @item EACCES - @item EEXIST - @item ENOSPC - @item ENOSYS - @item EBUSY - @item ENOENT - @item EPERM - @item EPIPE - @end table - -@item strerror(errno) -Return a string that describes the error @code{errno}. - -@item gc() -Manually invoke the cycle removal algorithm. The cycle removal -algorithm is automatically started when needed, so this function is -useful in case of specific memory constraints or for testing. - -@item getenv(name) -Return the value of the environment variable @code{name} or -@code{undefined} if it is not defined. - -@item setenv(name, value) -Set the value of the environment variable @code{name} to the string -@code{value}. - -@item unsetenv(name) -Delete the environment variable @code{name}. - -@item getenviron() -Return an object containing the environment variables as key-value pairs. - -@item urlGet(url, options = undefined) - -Download @code{url} using the @file{curl} command line -utility. @code{options} is an optional object containing the following -optional properties: - - @table @code - @item binary - Boolean (default = false). If true, the response is an ArrayBuffer - instead of a string. When a string is returned, the data is assumed - to be UTF-8 encoded. - - @item full - - Boolean (default = false). If true, return the an object contains - the properties @code{response} (response content), - @code{responseHeaders} (headers separated by CRLF), @code{status} - (status code). @code{response} is @code{null} is case of protocol or - network error. If @code{full} is false, only the response is - returned if the status is between 200 and 299. Otherwise @code{null} - is returned. - - @end table - -@item parseExtJSON(str) - - Parse @code{str} using a superset of @code{JSON.parse}. The - following extensions are accepted: - - @itemize - @item Single line and multiline comments - @item unquoted properties (ASCII-only Javascript identifiers) - @item trailing comma in array and object definitions - @item single quoted strings - @item @code{\f} and @code{\v} are accepted as space characters - @item leading plus in numbers - @item octal (@code{0o} prefix) and hexadecimal (@code{0x} prefix) numbers - @end itemize -@end table - -FILE prototype: - -@table @code -@item close() -Close the file. Return 0 if OK or @code{-errno} in case of I/O error. -@item puts(str) -Outputs the string with the UTF-8 encoding. -@item printf(fmt, ...args) -Formatted printf. - -The same formats as the standard C library @code{printf} are -supported. Integer format types (e.g. @code{%d}) truncate the Numbers -or BigInts to 32 bits. Use the @code{l} modifier (e.g. @code{%ld}) to -truncate to 64 bits. - -@item flush() -Flush the buffered file. -@item seek(offset, whence) -Seek to a give file position (whence is -@code{std.SEEK_*}). @code{offset} can be a number or a bigint. Return -0 if OK or @code{-errno} in case of I/O error. -@item tell() -Return the current file position. -@item tello() -Return the current file position as a bigint. -@item eof() -Return true if end of file. -@item fileno() -Return the associated OS handle. -@item error() -Return true if there was an error. -@item clearerr() -Clear the error indication. - -@item read(buffer, position, length) -Read @code{length} bytes from the file to the ArrayBuffer @code{buffer} at byte -position @code{position} (wrapper to the libc @code{fread}). - -@item write(buffer, position, length) -Write @code{length} bytes to the file from the ArrayBuffer @code{buffer} at byte -position @code{position} (wrapper to the libc @code{fwrite}). - -@item getline() -Return the next line from the file, assuming UTF-8 encoding, excluding -the trailing line feed. - -@item readAsString(max_size = undefined) -Read @code{max_size} bytes from the file and return them as a string -assuming UTF-8 encoding. If @code{max_size} is not present, the file -is read up its end. - -@item getByte() -Return the next byte from the file. Return -1 if the end of file is reached. - -@item putByte(c) -Write one byte to the file. -@end table - -@subsection @code{os} module - -The @code{os} module provides Operating System specific functions: - -@itemize -@item low level file access -@item signals -@item timers -@item asynchronous I/O -@item workers (threads) -@end itemize - -The OS functions usually return 0 if OK or an OS specific negative -error code. - -Available exports: - -@table @code -@item open(filename, flags, mode = 0o666) -Open a file. Return a handle or < 0 if error. - -@item O_RDONLY -@item O_WRONLY -@item O_RDWR -@item O_APPEND -@item O_CREAT -@item O_EXCL -@item O_TRUNC -POSIX open flags. - -@item O_TEXT -(Windows specific). Open the file in text mode. The default is binary mode. - -@item close(fd) -Close the file handle @code{fd}. - -@item seek(fd, offset, whence) -Seek in the file. Use @code{std.SEEK_*} for -@code{whence}. @code{offset} is either a number or a bigint. If -@code{offset} is a bigint, a bigint is returned too. - -@item read(fd, buffer, offset, length) -Read @code{length} bytes from the file handle @code{fd} to the -ArrayBuffer @code{buffer} at byte position @code{offset}. -Return the number of read bytes or < 0 if error. - -@item write(fd, buffer, offset, length) -Write @code{length} bytes to the file handle @code{fd} from the -ArrayBuffer @code{buffer} at byte position @code{offset}. -Return the number of written bytes or < 0 if error. - -@item isatty(fd) -Return @code{true} is @code{fd} is a TTY (terminal) handle. - -@item ttyGetWinSize(fd) -Return the TTY size as @code{[width, height]} or @code{null} if not available. - -@item ttySetRaw(fd) -Set the TTY in raw mode. - -@item remove(filename) -Remove a file. Return 0 if OK or @code{-errno}. - -@item rename(oldname, newname) -Rename a file. Return 0 if OK or @code{-errno}. - -@item realpath(path) -Return @code{[str, err]} where @code{str} is the canonicalized absolute -pathname of @code{path} and @code{err} the error code. - -@item getcwd() -Return @code{[str, err]} where @code{str} is the current working directory -and @code{err} the error code. - -@item chdir(path) -Change the current directory. Return 0 if OK or @code{-errno}. - -@item mkdir(path, mode = 0o777) -Create a directory at @code{path}. Return 0 if OK or @code{-errno}. - -@item stat(path) -@item lstat(path) - -Return @code{[obj, err]} where @code{obj} is an object containing the -file status of @code{path}. @code{err} is the error code. The -following fields are defined in @code{obj}: dev, ino, mode, nlink, -uid, gid, rdev, size, blocks, atime, mtime, ctime. The times are -specified in milliseconds since 1970. @code{lstat()} is the same as -@code{stat()} excepts that it returns information about the link -itself. - -@item S_IFMT -@item S_IFIFO -@item S_IFCHR -@item S_IFDIR -@item S_IFBLK -@item S_IFREG -@item S_IFSOCK -@item S_IFLNK -@item S_ISGID -@item S_ISUID -Constants to interpret the @code{mode} property returned by -@code{stat()}. They have the same value as in the C system header -@file{sys/stat.h}. - -@item utimes(path, atime, mtime) -Change the access and modification times of the file @code{path}. The -times are specified in milliseconds since 1970. Return 0 if OK or @code{-errno}. - -@item symlink(target, linkpath) -Create a link at @code{linkpath} containing the string @code{target}. Return 0 if OK or @code{-errno}. - -@item readlink(path) -Return @code{[str, err]} where @code{str} is the link target and @code{err} -the error code. - -@item readdir(path) -Return @code{[array, err]} where @code{array} is an array of strings -containing the filenames of the directory @code{path}. @code{err} is -the error code. - -@item setReadHandler(fd, func) -Add a read handler to the file handle @code{fd}. @code{func} is called -each time there is data pending for @code{fd}. A single read handler -per file handle is supported. Use @code{func = null} to remove the -handler. - -@item setWriteHandler(fd, func) -Add a write handler to the file handle @code{fd}. @code{func} is -called each time data can be written to @code{fd}. A single write -handler per file handle is supported. Use @code{func = null} to remove -the handler. - -@item signal(signal, func) -Call the function @code{func} when the signal @code{signal} -happens. Only a single handler per signal number is supported. Use -@code{null} to set the default handler or @code{undefined} to ignore -the signal. Signal handlers can only be defined in the main thread. - -@item SIGINT -@item SIGABRT -@item SIGFPE -@item SIGILL -@item SIGSEGV -@item SIGTERM -POSIX signal numbers. - -@item kill(pid, sig) -Send the signal @code{sig} to the process @code{pid}. - -@item exec(args[, options]) -Execute a process with the arguments @code{args}. @code{options} is an -object containing optional parameters: - - @table @code - @item block - Boolean (default = true). If true, wait until the process is - terminated. In this case, @code{exec} return the exit code if positive - or the negated signal number if the process was interrupted by a - signal. If false, do not block and return the process id of the child. - - @item usePath - Boolean (default = true). If true, the file is searched in the - @code{PATH} environment variable. - - @item file - String (default = @code{args[0]}). Set the file to be executed. - - @item cwd - String. If present, set the working directory of the new process. - - @item stdin - @item stdout - @item stderr - If present, set the handle in the child for stdin, stdout or stderr. - - @item env - Object. If present, set the process environment from the object - key-value pairs. Otherwise use the same environment as the current - process. - - @item uid - Integer. If present, the process uid with @code{setuid}. - - @item gid - Integer. If present, the process gid with @code{setgid}. - - @end table - -@item getpid() -Return the current process ID. - -@item waitpid(pid, options) -@code{waitpid} Unix system call. Return the array @code{[ret, -status]}. @code{ret} contains @code{-errno} in case of error. - -@item WNOHANG -Constant for the @code{options} argument of @code{waitpid}. - -@item dup(fd) -@code{dup} Unix system call. - -@item dup2(oldfd, newfd) -@code{dup2} Unix system call. - -@item pipe() -@code{pipe} Unix system call. Return two handles as @code{[read_fd, -write_fd]} or null in case of error. - -@item sleep(delay_ms) -Sleep during @code{delay_ms} milliseconds. - -@item sleepAsync(delay_ms) -Asynchronouse sleep during @code{delay_ms} milliseconds. Returns a promise. Example: -@example -await os.sleepAsync(500); -@end example - -@item now() -Return a timestamp in milliseconds with more precision than -@code{Date.now()}. The time origin is unspecified and is normally not -impacted by system clock adjustments. - -@item setTimeout(func, delay) -Call the function @code{func} after @code{delay} ms. Return a handle -to the timer. - -@item clearTimeout(handle) -Cancel a timer. - -@item platform -Return a string representing the platform: @code{"linux"}, @code{"darwin"}, -@code{"win32"} or @code{"js"}. - -@item Worker(module_filename) -Constructor to create a new thread (worker) with an API close to the -@code{WebWorkers}. @code{module_filename} is a string specifying the -module filename which is executed in the newly created thread. As for -dynamically imported module, it is relative to the current script or -module path. Threads normally don't share any data and communicate -between each other with messages. Nested workers are not supported. An -example is available in @file{tests/test_worker.js}. - -The worker class has the following static properties: - - @table @code - @item parent - In the created worker, @code{Worker.parent} represents the parent - worker and is used to send or receive messages. - @end table - -The worker instances have the following properties: - - @table @code - @item postMessage(msg) - - Send a message to the corresponding worker. @code{msg} is cloned in - the destination worker using an algorithm similar to the @code{HTML} - structured clone algorithm. @code{SharedArrayBuffer} are shared - between workers. - - Current limitations: @code{Map} and @code{Set} are not supported - yet. - - @item onmessage - - Getter and setter. Set a function which is called each time a - message is received. The function is called with a single - argument. It is an object with a @code{data} property containing the - received message. The thread is not terminated if there is at least - one non @code{null} @code{onmessage} handler. - - @end table - -@end table - -@section QuickJS C API - -The C API was designed to be simple and efficient. The C API is -defined in the header @code{quickjs.h}. - -@subsection Runtime and contexts - -@code{JSRuntime} represents a Javascript runtime corresponding to an -object heap. Several runtimes can exist at the same time but they -cannot exchange objects. Inside a given runtime, no multi-threading is -supported. - -@code{JSContext} represents a Javascript context (or Realm). Each -JSContext has its own global objects and system objects. There can be -several JSContexts per JSRuntime and they can share objects, similar -to frames of the same origin sharing Javascript objects in a -web browser. - -@subsection JSValue - -@code{JSValue} represents a Javascript value which can be a primitive -type or an object. Reference counting is used, so it is important to -explicitly duplicate (@code{JS_DupValue()}, increment the reference -count) or free (@code{JS_FreeValue()}, decrement the reference count) -JSValues. - -@subsection C functions - -C functions can be created with -@code{JS_NewCFunction()}. @code{JS_SetPropertyFunctionList()} is a -shortcut to easily add functions, setters and getters properties to a -given object. - -Unlike other embedded Javascript engines, there is no implicit stack, -so C functions get their parameters as normal C parameters. As a -general rule, C functions take constant @code{JSValue}s as parameters -(so they don't need to free them) and return a newly allocated (=live) -@code{JSValue}. - -@subsection Exceptions - -Exceptions: most C functions can return a Javascript exception. It -must be explicitly tested and handled by the C code. The specific -@code{JSValue} @code{JS_EXCEPTION} indicates that an exception -occurred. The actual exception object is stored in the -@code{JSContext} and can be retrieved with @code{JS_GetException()}. - -@subsection Script evaluation - -Use @code{JS_Eval()} to evaluate a script or module source. - -If the script or module was compiled to bytecode with @code{qjsc}, it -can be evaluated by calling @code{js_std_eval_binary()}. The advantage -is that no compilation is needed so it is faster and smaller because -the compiler can be removed from the executable if no @code{eval} is -required. - -Note: the bytecode format is linked to a given QuickJS -version. Moreover, no security check is done before its -execution. Hence the bytecode should not be loaded from untrusted -sources. That's why there is no option to output the bytecode to a -binary file in @code{qjsc}. - -@subsection JS Classes - -C opaque data can be attached to a Javascript object. The type of the -C opaque data is determined with the class ID (@code{JSClassID}) of -the object. Hence the first step is to register a new class ID and JS -class (@code{JS_NewClassID()}, @code{JS_NewClass()}). Then you can -create objects of this class with @code{JS_NewObjectClass()} and get or -set the C opaque point with -@code{JS_GetOpaque()}/@code{JS_SetOpaque()}. - -When defining a new JS class, it is possible to declare a finalizer -which is called when the object is destroyed. The finalizer should be -used to release C resources. It is invalid to execute JS code from -it. A @code{gc_mark} method can be provided so that the cycle removal -algorithm can find the other objects referenced by this object. Other -methods are available to define exotic object behaviors. - -The Class ID are globally allocated (i.e. for all runtimes). The -JSClass are allocated per @code{JSRuntime}. @code{JS_SetClassProto()} -is used to define a prototype for a given class in a given -JSContext. @code{JS_NewObjectClass()} sets this prototype in the -created object. - -Examples are available in @file{quickjs-libc.c}. - -@subsection C Modules - -Native ES6 modules are supported and can be dynamically or statically -linked. Look at the @file{test_bjson} and @file{bjson.so} -examples. The standard library @file{quickjs-libc.c} is also a good example -of a native module. - -@subsection Memory handling - -Use @code{JS_SetMemoryLimit()} to set a global memory allocation limit -to a given JSRuntime. - -Custom memory allocation functions can be provided with -@code{JS_NewRuntime2()}. - -The maximum system stack size can be set with @code{JS_SetMaxStackSize()}. - -@subsection Execution timeout and interrupts - -Use @code{JS_SetInterruptHandler()} to set a callback which is -regularly called by the engine when it is executing code. This -callback can be used to implement an execution timeout. - -It is used by the command line interpreter to implement a -@code{Ctrl-C} handler. - -@chapter Internals - -@section Bytecode - -The compiler generates bytecode directly with no intermediate -representation such as a parse tree, hence it is very fast. Several -optimizations passes are done over the generated bytecode. - -A stack-based bytecode was chosen because it is simple and generates -compact code. - -For each function, the maximum stack size is computed at compile time so that -no runtime stack overflow tests are needed. - -A separate compressed line number table is maintained for the debug -information. - -Access to closure variables is optimized and is almost as fast as local -variables. - -Direct @code{eval} in strict mode is optimized. - -@section Executable generation - -@subsection @code{qjsc} compiler - -The @code{qjsc} compiler generates C sources from Javascript files. By -default the C sources are compiled with the system compiler -(@code{gcc} or @code{clang}). - -The generated C source contains the bytecode of the compiled functions -or modules. If a full complete executable is needed, it also -contains a @code{main()} function with the necessary C code to initialize the -Javascript engine and to load and execute the compiled functions and -modules. - -Javascript code can be mixed with C modules. - -In order to have smaller executables, specific Javascript features can -be disabled, in particular @code{eval} or the regular expressions. The -code removal relies on the Link Time Optimization of the system -compiler. - -@subsection Binary JSON - -@code{qjsc} works by compiling scripts or modules and then serializing -them to a binary format. A subset of this format (without functions or -modules) can be used as binary JSON. The example @file{test_bjson.js} -shows how to use it. - -Warning: the binary JSON format may change without notice, so it -should not be used to store persistent data. The @file{test_bjson.js} -example is only used to test the binary object format functions. - -@section Runtime - -@subsection Strings - -Strings are stored either as an 8 bit or a 16 bit array of -characters. Hence random access to characters is always fast. - -The C API provides functions to convert Javascript Strings to C UTF-8 encoded -strings. The most common case where the Javascript string contains -only ASCII characters involves no copying. - -@subsection Objects - -The object shapes (object prototype, property names and flags) are shared -between objects to save memory. - -Arrays with no holes (except at the end of the array) are optimized. - -TypedArray accesses are optimized. - -@subsection Atoms - -Object property names and some strings are stored as Atoms (unique -strings) to save memory and allow fast comparison. Atoms are -represented as a 32 bit integer. Half of the atom range is reserved for -immediate integer literals from @math{0} to @math{2^{31}-1}. - -@subsection Numbers - -Numbers are represented either as 32-bit signed integers or 64-bit IEEE-754 -floating point values. Most operations have fast paths for the 32-bit -integer case. - -@subsection Garbage collection - -Reference counting is used to free objects automatically and -deterministically. A separate cycle removal pass is done when the allocated -memory becomes too large. The cycle removal algorithm only uses the -reference counts and the object content, so no explicit garbage -collection roots need to be manipulated in the C code. - -@subsection JSValue - -It is a Javascript value which can be a primitive type (such as -Number, String, ...) or an Object. NaN boxing is used in the 32-bit version -to store 64-bit floating point numbers. The representation is -optimized so that 32-bit integers and reference counted values can be -efficiently tested. - -In 64-bit code, JSValue are 128-bit large and no NaN boxing is used. The -rationale is that in 64-bit code memory usage is less critical. - -In both cases (32 or 64 bits), JSValue exactly fits two CPU registers, -so it can be efficiently returned by C functions. - -@subsection Function call - -The engine is optimized so that function calls are fast. The system -stack holds the Javascript parameters and local variables. - -@section RegExp - -A specific regular expression engine was developed. It is both small -and efficient and supports all the ES2023 features including the -Unicode properties. As the Javascript compiler, it directly generates -bytecode without a parse tree. - -Backtracking with an explicit stack is used so that there is no -recursion on the system stack. Simple quantifiers are specifically -optimized to avoid recursions. - -The full regexp library weights about 15 KiB (x86 code), excluding the -Unicode library. - -@section Unicode - -A specific Unicode library was developed so that there is no -dependency on an external large Unicode library such as ICU. All the -Unicode tables are compressed while keeping a reasonable access -speed. - -The library supports case conversion, Unicode normalization, Unicode -script queries, Unicode general category queries and all Unicode -binary properties. - -The full Unicode library weights about 45 KiB (x86 code). - -@section BigInt, BigFloat, BigDecimal - -BigInt, BigFloat and BigDecimal are implemented with the @code{libbf} -library@footnote{@url{https://bellard.org/libbf}}. It weights about 90 -KiB (x86 code) and provides arbitrary precision IEEE 754 floating -point operations and transcendental functions with exact rounding. - -@chapter License - -QuickJS is released under the MIT license. - -Unless otherwise specified, the QuickJS sources are copyright Fabrice -Bellard and Charlie Gordon. - -@bye diff --git a/deps/quickjs/examples/fib.c b/deps/quickjs/examples/fib.c deleted file mode 100644 index c77b7056..00000000 --- a/deps/quickjs/examples/fib.c +++ /dev/null @@ -1,72 +0,0 @@ -/* - * QuickJS: Example of C module - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "../quickjs.h" - -#define countof(x) (sizeof(x) / sizeof((x)[0])) - -static int fib(int n) -{ - if (n <= 0) - return 0; - else if (n == 1) - return 1; - else - return fib(n - 1) + fib(n - 2); -} - -static JSValue js_fib(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int n, res; - if (JS_ToInt32(ctx, &n, argv[0])) - return JS_EXCEPTION; - res = fib(n); - return JS_NewInt32(ctx, res); -} - -static const JSCFunctionListEntry js_fib_funcs[] = { - JS_CFUNC_DEF("fib", 1, js_fib ), -}; - -static int js_fib_init(JSContext *ctx, JSModuleDef *m) -{ - return JS_SetModuleExportList(ctx, m, js_fib_funcs, - countof(js_fib_funcs)); -} - -#ifdef JS_SHARED_LIBRARY -#define JS_INIT_MODULE js_init_module -#else -#define JS_INIT_MODULE js_init_module_fib -#endif - -JSModuleDef *JS_INIT_MODULE(JSContext *ctx, const char *module_name) -{ - JSModuleDef *m; - m = JS_NewCModule(ctx, module_name, js_fib_init); - if (!m) - return NULL; - JS_AddModuleExportList(ctx, m, js_fib_funcs, countof(js_fib_funcs)); - return m; -} diff --git a/deps/quickjs/examples/fib_module.js b/deps/quickjs/examples/fib_module.js deleted file mode 100644 index 6a810716..00000000 --- a/deps/quickjs/examples/fib_module.js +++ /dev/null @@ -1,10 +0,0 @@ -/* fib module */ -export function fib(n) -{ - if (n <= 0) - return 0; - else if (n == 1) - return 1; - else - return fib(n - 1) + fib(n - 2); -} diff --git a/deps/quickjs/examples/hello.js b/deps/quickjs/examples/hello.js deleted file mode 100644 index accefceb..00000000 --- a/deps/quickjs/examples/hello.js +++ /dev/null @@ -1 +0,0 @@ -console.log("Hello World"); diff --git a/deps/quickjs/examples/hello_module.js b/deps/quickjs/examples/hello_module.js deleted file mode 100644 index 463660f6..00000000 --- a/deps/quickjs/examples/hello_module.js +++ /dev/null @@ -1,6 +0,0 @@ -/* example of JS module */ - -import { fib } from "./fib_module.js"; - -console.log("Hello World"); -console.log("fib(10)=", fib(10)); diff --git a/deps/quickjs/examples/pi_bigdecimal.js b/deps/quickjs/examples/pi_bigdecimal.js deleted file mode 100644 index 6a416b79..00000000 --- a/deps/quickjs/examples/pi_bigdecimal.js +++ /dev/null @@ -1,68 +0,0 @@ -/* - * PI computation in Javascript using the QuickJS bigdecimal type - * (decimal floating point) - */ -"use strict"; - -/* compute PI with a precision of 'prec' digits */ -function calc_pi(prec) { - const CHUD_A = 13591409m; - const CHUD_B = 545140134m; - const CHUD_C = 640320m; - const CHUD_C3 = 10939058860032000m; /* C^3/24 */ - const CHUD_DIGITS_PER_TERM = 14.18164746272548; /* log10(C/12)*3 */ - - /* return [P, Q, G] */ - function chud_bs(a, b, need_G) { - var c, P, Q, G, P1, Q1, G1, P2, Q2, G2, b1; - if (a == (b - 1n)) { - b1 = BigDecimal(b); - G = (2m * b1 - 1m) * (6m * b1 - 1m) * (6m * b1 - 5m); - P = G * (CHUD_B * b1 + CHUD_A); - if (b & 1n) - P = -P; - G = G; - Q = b1 * b1 * b1 * CHUD_C3; - } else { - c = (a + b) >> 1n; - [P1, Q1, G1] = chud_bs(a, c, true); - [P2, Q2, G2] = chud_bs(c, b, need_G); - P = P1 * Q2 + P2 * G1; - Q = Q1 * Q2; - if (need_G) - G = G1 * G2; - else - G = 0m; - } - return [P, Q, G]; - } - - var n, P, Q, G; - /* number of serie terms */ - n = BigInt(Math.ceil(prec / CHUD_DIGITS_PER_TERM)) + 10n; - [P, Q, G] = chud_bs(0n, n, false); - Q = BigDecimal.div(Q, (P + Q * CHUD_A), - { roundingMode: "half-even", - maximumSignificantDigits: prec }); - G = (CHUD_C / 12m) * BigDecimal.sqrt(CHUD_C, - { roundingMode: "half-even", - maximumSignificantDigits: prec }); - return Q * G; -} - -(function() { - var r, n_digits, n_bits; - if (typeof scriptArgs != "undefined") { - if (scriptArgs.length < 2) { - print("usage: pi n_digits"); - return; - } - n_digits = scriptArgs[1] | 0; - } else { - n_digits = 1000; - } - /* we add more digits to reduce the probability of bad rounding for - the last digits */ - r = calc_pi(n_digits + 20); - print(r.toFixed(n_digits, "down")); -})(); diff --git a/deps/quickjs/examples/pi_bigfloat.js b/deps/quickjs/examples/pi_bigfloat.js deleted file mode 100644 index 2bcda22f..00000000 --- a/deps/quickjs/examples/pi_bigfloat.js +++ /dev/null @@ -1,66 +0,0 @@ -/* - * PI computation in Javascript using the QuickJS bigfloat type - * (binary floating point) - */ -"use strict"; - -/* compute PI with a precision of 'prec' bits */ -function calc_pi() { - const CHUD_A = 13591409n; - const CHUD_B = 545140134n; - const CHUD_C = 640320n; - const CHUD_C3 = 10939058860032000n; /* C^3/24 */ - const CHUD_BITS_PER_TERM = 47.11041313821584202247; /* log2(C/12)*3 */ - - /* return [P, Q, G] */ - function chud_bs(a, b, need_G) { - var c, P, Q, G, P1, Q1, G1, P2, Q2, G2; - if (a == (b - 1n)) { - G = (2n * b - 1n) * (6n * b - 1n) * (6n * b - 5n); - P = BigFloat(G * (CHUD_B * b + CHUD_A)); - if (b & 1n) - P = -P; - G = BigFloat(G); - Q = BigFloat(b * b * b * CHUD_C3); - } else { - c = (a + b) >> 1n; - [P1, Q1, G1] = chud_bs(a, c, true); - [P2, Q2, G2] = chud_bs(c, b, need_G); - P = P1 * Q2 + P2 * G1; - Q = Q1 * Q2; - if (need_G) - G = G1 * G2; - else - G = 0l; - } - return [P, Q, G]; - } - - var n, P, Q, G; - /* number of serie terms */ - n = BigInt(Math.ceil(BigFloatEnv.prec / CHUD_BITS_PER_TERM)) + 10n; - [P, Q, G] = chud_bs(0n, n, false); - Q = Q / (P + Q * BigFloat(CHUD_A)); - G = BigFloat((CHUD_C / 12n)) * BigFloat.sqrt(BigFloat(CHUD_C)); - return Q * G; -} - -(function() { - var r, n_digits, n_bits; - if (typeof scriptArgs != "undefined") { - if (scriptArgs.length < 2) { - print("usage: pi n_digits"); - return; - } - n_digits = scriptArgs[1]; - } else { - n_digits = 1000; - } - n_bits = Math.ceil(n_digits * Math.log2(10)); - /* we add more bits to reduce the probability of bad rounding for - the last digits */ - BigFloatEnv.setPrec( () => { - r = calc_pi(); - print(r.toFixed(n_digits, BigFloatEnv.RNDZ)); - }, n_bits + 32); -})(); diff --git a/deps/quickjs/examples/pi_bigint.js b/deps/quickjs/examples/pi_bigint.js deleted file mode 100644 index cbbb2c40..00000000 --- a/deps/quickjs/examples/pi_bigint.js +++ /dev/null @@ -1,118 +0,0 @@ -/* - * PI computation in Javascript using the BigInt type - */ -"use strict"; - -/* return floor(log2(a)) for a > 0 and 0 for a = 0 */ -function floor_log2(a) -{ - var k_max, a1, k, i; - k_max = 0n; - while ((a >> (2n ** k_max)) != 0n) { - k_max++; - } - k = 0n; - a1 = a; - for(i = k_max - 1n; i >= 0n; i--) { - a1 = a >> (2n ** i); - if (a1 != 0n) { - a = a1; - k |= (1n << i); - } - } - return k; -} - -/* return ceil(log2(a)) for a > 0 */ -function ceil_log2(a) -{ - return floor_log2(a - 1n) + 1n; -} - -/* return floor(sqrt(a)) (not efficient but simple) */ -function int_sqrt(a) -{ - var l, u, s; - if (a == 0n) - return a; - l = ceil_log2(a); - u = 1n << ((l + 1n) / 2n); - /* u >= floor(sqrt(a)) */ - for(;;) { - s = u; - u = ((a / s) + s) / 2n; - if (u >= s) - break; - } - return s; -} - -/* return pi * 2**prec */ -function calc_pi(prec) { - const CHUD_A = 13591409n; - const CHUD_B = 545140134n; - const CHUD_C = 640320n; - const CHUD_C3 = 10939058860032000n; /* C^3/24 */ - const CHUD_BITS_PER_TERM = 47.11041313821584202247; /* log2(C/12)*3 */ - - /* return [P, Q, G] */ - function chud_bs(a, b, need_G) { - var c, P, Q, G, P1, Q1, G1, P2, Q2, G2; - if (a == (b - 1n)) { - G = (2n * b - 1n) * (6n * b - 1n) * (6n * b - 5n); - P = G * (CHUD_B * b + CHUD_A); - if (b & 1n) - P = -P; - Q = b * b * b * CHUD_C3; - } else { - c = (a + b) >> 1n; - [P1, Q1, G1] = chud_bs(a, c, true); - [P2, Q2, G2] = chud_bs(c, b, need_G); - P = P1 * Q2 + P2 * G1; - Q = Q1 * Q2; - if (need_G) - G = G1 * G2; - else - G = 0n; - } - return [P, Q, G]; - } - - var n, P, Q, G; - /* number of serie terms */ - n = BigInt(Math.ceil(Number(prec) / CHUD_BITS_PER_TERM)) + 10n; - [P, Q, G] = chud_bs(0n, n, false); - Q = (CHUD_C / 12n) * (Q << prec) / (P + Q * CHUD_A); - G = int_sqrt(CHUD_C << (2n * prec)); - return (Q * G) >> prec; -} - -function main(args) { - var r, n_digits, n_bits, out; - if (args.length < 1) { - print("usage: pi n_digits"); - return; - } - n_digits = args[0] | 0; - - /* we add more bits to reduce the probability of bad rounding for - the last digits */ - n_bits = BigInt(Math.ceil(n_digits * Math.log2(10))) + 32n; - r = calc_pi(n_bits); - r = ((10n ** BigInt(n_digits)) * r) >> n_bits; - out = r.toString(); - print(out[0] + "." + out.slice(1)); -} - -var args; -if (typeof scriptArgs != "undefined") { - args = scriptArgs; - args.shift(); -} else if (typeof arguments != "undefined") { - args = arguments; -} else { - /* default: 1000 digits */ - args=[1000]; -} - -main(args); diff --git a/deps/quickjs/examples/point.c b/deps/quickjs/examples/point.c deleted file mode 100644 index fbe2ce10..00000000 --- a/deps/quickjs/examples/point.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * QuickJS: Example of C module with a class - * - * Copyright (c) 2019 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "../quickjs.h" -#include - -#define countof(x) (sizeof(x) / sizeof((x)[0])) - -/* Point Class */ - -typedef struct { - int x; - int y; -} JSPointData; - -static JSClassID js_point_class_id; - -static void js_point_finalizer(JSRuntime *rt, JSValue val) -{ - JSPointData *s = JS_GetOpaque(val, js_point_class_id); - /* Note: 's' can be NULL in case JS_SetOpaque() was not called */ - js_free_rt(rt, s); -} - -static JSValue js_point_ctor(JSContext *ctx, - JSValueConst new_target, - int argc, JSValueConst *argv) -{ - JSPointData *s; - JSValue obj = JS_UNDEFINED; - JSValue proto; - - s = js_mallocz(ctx, sizeof(*s)); - if (!s) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &s->x, argv[0])) - goto fail; - if (JS_ToInt32(ctx, &s->y, argv[1])) - goto fail; - /* using new_target to get the prototype is necessary when the - class is extended. */ - proto = JS_GetPropertyStr(ctx, new_target, "prototype"); - if (JS_IsException(proto)) - goto fail; - obj = JS_NewObjectProtoClass(ctx, proto, js_point_class_id); - JS_FreeValue(ctx, proto); - if (JS_IsException(obj)) - goto fail; - JS_SetOpaque(obj, s); - return obj; - fail: - js_free(ctx, s); - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; -} - -static JSValue js_point_get_xy(JSContext *ctx, JSValueConst this_val, int magic) -{ - JSPointData *s = JS_GetOpaque2(ctx, this_val, js_point_class_id); - if (!s) - return JS_EXCEPTION; - if (magic == 0) - return JS_NewInt32(ctx, s->x); - else - return JS_NewInt32(ctx, s->y); -} - -static JSValue js_point_set_xy(JSContext *ctx, JSValueConst this_val, JSValue val, int magic) -{ - JSPointData *s = JS_GetOpaque2(ctx, this_val, js_point_class_id); - int v; - if (!s) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &v, val)) - return JS_EXCEPTION; - if (magic == 0) - s->x = v; - else - s->y = v; - return JS_UNDEFINED; -} - -static JSValue js_point_norm(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSPointData *s = JS_GetOpaque2(ctx, this_val, js_point_class_id); - if (!s) - return JS_EXCEPTION; - return JS_NewFloat64(ctx, sqrt((double)s->x * s->x + (double)s->y * s->y)); -} - -static JSClassDef js_point_class = { - "Point", - .finalizer = js_point_finalizer, -}; - -static const JSCFunctionListEntry js_point_proto_funcs[] = { - JS_CGETSET_MAGIC_DEF("x", js_point_get_xy, js_point_set_xy, 0), - JS_CGETSET_MAGIC_DEF("y", js_point_get_xy, js_point_set_xy, 1), - JS_CFUNC_DEF("norm", 0, js_point_norm), -}; - -static int js_point_init(JSContext *ctx, JSModuleDef *m) -{ - JSValue point_proto, point_class; - - /* create the Point class */ - JS_NewClassID(&js_point_class_id); - JS_NewClass(JS_GetRuntime(ctx), js_point_class_id, &js_point_class); - - point_proto = JS_NewObject(ctx); - JS_SetPropertyFunctionList(ctx, point_proto, js_point_proto_funcs, countof(js_point_proto_funcs)); - - point_class = JS_NewCFunction2(ctx, js_point_ctor, "Point", 2, JS_CFUNC_constructor, 0); - /* set proto.constructor and ctor.prototype */ - JS_SetConstructor(ctx, point_class, point_proto); - JS_SetClassProto(ctx, js_point_class_id, point_proto); - - JS_SetModuleExport(ctx, m, "Point", point_class); - return 0; -} - -JSModuleDef *js_init_module(JSContext *ctx, const char *module_name) -{ - JSModuleDef *m; - m = JS_NewCModule(ctx, module_name, js_point_init); - if (!m) - return NULL; - JS_AddModuleExport(ctx, m, "Point"); - return m; -} diff --git a/deps/quickjs/examples/test_fib.js b/deps/quickjs/examples/test_fib.js deleted file mode 100644 index 70d26bd8..00000000 --- a/deps/quickjs/examples/test_fib.js +++ /dev/null @@ -1,6 +0,0 @@ -/* example of JS module importing a C module */ - -import { fib } from "./fib.so"; - -console.log("Hello World"); -console.log("fib(10)=", fib(10)); diff --git a/deps/quickjs/examples/test_point.js b/deps/quickjs/examples/test_point.js deleted file mode 100644 index 0659bc35..00000000 --- a/deps/quickjs/examples/test_point.js +++ /dev/null @@ -1,40 +0,0 @@ -/* example of JS module importing a C module */ -import { Point } from "./point.so"; - -function assert(b, str) -{ - if (b) { - return; - } else { - throw Error("assertion failed: " + str); - } -} - -class ColorPoint extends Point { - constructor(x, y, color) { - super(x, y); - this.color = color; - } - get_color() { - return this.color; - } -}; - -function main() -{ - var pt, pt2; - - pt = new Point(2, 3); - assert(pt.x === 2); - assert(pt.y === 3); - pt.x = 4; - assert(pt.x === 4); - assert(pt.norm() == 5); - - pt2 = new ColorPoint(2, 3, 0xffffff); - assert(pt2.x === 2); - assert(pt2.color === 0xffffff); - assert(pt2.get_color() === 0xffffff); -} - -main(); diff --git a/deps/quickjs/libbf.c b/deps/quickjs/libbf.c deleted file mode 100644 index 234b956b..00000000 --- a/deps/quickjs/libbf.c +++ /dev/null @@ -1,8473 +0,0 @@ -/* - * Tiny arbitrary precision floating point library - * - * Copyright (c) 2017-2021 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include - -#ifdef __AVX2__ -#include -#endif - -#include "cutils.h" -#include "libbf.h" - -/* enable it to check the multiplication result */ -//#define USE_MUL_CHECK -#ifdef CONFIG_BIGNUM -/* enable it to use FFT/NTT multiplication */ -#define USE_FFT_MUL -/* enable decimal floating point support */ -#define USE_BF_DEC -#endif - -//#define inline __attribute__((always_inline)) - -#ifdef __AVX2__ -#define FFT_MUL_THRESHOLD 100 /* in limbs of the smallest factor */ -#else -#define FFT_MUL_THRESHOLD 100 /* in limbs of the smallest factor */ -#endif - -/* XXX: adjust */ -#define DIVNORM_LARGE_THRESHOLD 50 -#define UDIV1NORM_THRESHOLD 3 - -#if LIMB_BITS == 64 -#define FMT_LIMB1 "%" PRIx64 -#define FMT_LIMB "%016" PRIx64 -#define PRId_LIMB PRId64 -#define PRIu_LIMB PRIu64 - -#else - -#define FMT_LIMB1 "%x" -#define FMT_LIMB "%08x" -#define PRId_LIMB "d" -#define PRIu_LIMB "u" - -#endif - -typedef intptr_t mp_size_t; - -typedef int bf_op2_func_t(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags); - -#ifdef USE_FFT_MUL - -#define FFT_MUL_R_OVERLAP_A (1 << 0) -#define FFT_MUL_R_OVERLAP_B (1 << 1) -#define FFT_MUL_R_NORESIZE (1 << 2) - -static no_inline int fft_mul(bf_context_t *s, - bf_t *res, limb_t *a_tab, limb_t a_len, - limb_t *b_tab, limb_t b_len, int mul_flags); -static void fft_clear_cache(bf_context_t *s); -#endif -#ifdef USE_BF_DEC -static limb_t get_digit(const limb_t *tab, limb_t len, slimb_t pos); -#endif - - -/* could leading zeros */ -static inline int clz(limb_t a) -{ - if (a == 0) { - return LIMB_BITS; - } else { -#if LIMB_BITS == 64 - return clz64(a); -#else - return clz32(a); -#endif - } -} - -static inline int ctz(limb_t a) -{ - if (a == 0) { - return LIMB_BITS; - } else { -#if LIMB_BITS == 64 - return ctz64(a); -#else - return ctz32(a); -#endif - } -} - -static inline int ceil_log2(limb_t a) -{ - if (a <= 1) - return 0; - else - return LIMB_BITS - clz(a - 1); -} - -/* b must be >= 1 */ -static inline slimb_t ceil_div(slimb_t a, slimb_t b) -{ - if (a >= 0) - return (a + b - 1) / b; - else - return a / b; -} - -/* b must be >= 1 */ -static inline slimb_t floor_div(slimb_t a, slimb_t b) -{ - if (a >= 0) { - return a / b; - } else { - return (a - b + 1) / b; - } -} - -/* return r = a modulo b (0 <= r <= b - 1. b must be >= 1 */ -static inline limb_t smod(slimb_t a, slimb_t b) -{ - a = a % (slimb_t)b; - if (a < 0) - a += b; - return a; -} - -/* signed addition with saturation */ -static inline slimb_t sat_add(slimb_t a, slimb_t b) -{ - slimb_t r; - r = a + b; - /* overflow ? */ - if (((a ^ r) & (b ^ r)) < 0) - r = (a >> (LIMB_BITS - 1)) ^ (((limb_t)1 << (LIMB_BITS - 1)) - 1); - return r; -} - -static inline __maybe_unused limb_t shrd(limb_t low, limb_t high, long shift) -{ - if (shift != 0) - low = (low >> shift) | (high << (LIMB_BITS - shift)); - return low; -} - -static inline __maybe_unused limb_t shld(limb_t a1, limb_t a0, long shift) -{ - if (shift != 0) - return (a1 << shift) | (a0 >> (LIMB_BITS - shift)); - else - return a1; -} - -#define malloc(s) malloc_is_forbidden(s) -#define free(p) free_is_forbidden(p) -#define realloc(p, s) realloc_is_forbidden(p, s) - -void bf_context_init(bf_context_t *s, bf_realloc_func_t *realloc_func, - void *realloc_opaque) -{ - memset(s, 0, sizeof(*s)); - s->realloc_func = realloc_func; - s->realloc_opaque = realloc_opaque; -} - -void bf_context_end(bf_context_t *s) -{ - bf_clear_cache(s); -} - -void bf_init(bf_context_t *s, bf_t *r) -{ - r->ctx = s; - r->sign = 0; - r->expn = BF_EXP_ZERO; - r->len = 0; - r->tab = NULL; -} - -/* return 0 if OK, -1 if alloc error */ -int bf_resize(bf_t *r, limb_t len) -{ - limb_t *tab; - - if (len != r->len) { - tab = bf_realloc(r->ctx, r->tab, len * sizeof(limb_t)); - if (!tab && len != 0) - return -1; - r->tab = tab; - r->len = len; - } - return 0; -} - -/* return 0 or BF_ST_MEM_ERROR */ -int bf_set_ui(bf_t *r, uint64_t a) -{ - r->sign = 0; - if (a == 0) { - r->expn = BF_EXP_ZERO; - bf_resize(r, 0); /* cannot fail */ - } -#if LIMB_BITS == 32 - else if (a <= 0xffffffff) -#else - else -#endif - { - int shift; - if (bf_resize(r, 1)) - goto fail; - shift = clz(a); - r->tab[0] = a << shift; - r->expn = LIMB_BITS - shift; - } -#if LIMB_BITS == 32 - else { - uint32_t a1, a0; - int shift; - if (bf_resize(r, 2)) - goto fail; - a0 = a; - a1 = a >> 32; - shift = clz(a1); - r->tab[0] = a0 << shift; - r->tab[1] = shld(a1, a0, shift); - r->expn = 2 * LIMB_BITS - shift; - } -#endif - return 0; - fail: - bf_set_nan(r); - return BF_ST_MEM_ERROR; -} - -/* return 0 or BF_ST_MEM_ERROR */ -int bf_set_si(bf_t *r, int64_t a) -{ - int ret; - - if (a < 0) { - ret = bf_set_ui(r, -a); - r->sign = 1; - } else { - ret = bf_set_ui(r, a); - } - return ret; -} - -void bf_set_nan(bf_t *r) -{ - bf_resize(r, 0); /* cannot fail */ - r->expn = BF_EXP_NAN; - r->sign = 0; -} - -void bf_set_zero(bf_t *r, int is_neg) -{ - bf_resize(r, 0); /* cannot fail */ - r->expn = BF_EXP_ZERO; - r->sign = is_neg; -} - -void bf_set_inf(bf_t *r, int is_neg) -{ - bf_resize(r, 0); /* cannot fail */ - r->expn = BF_EXP_INF; - r->sign = is_neg; -} - -/* return 0 or BF_ST_MEM_ERROR */ -int bf_set(bf_t *r, const bf_t *a) -{ - if (r == a) - return 0; - if (bf_resize(r, a->len)) { - bf_set_nan(r); - return BF_ST_MEM_ERROR; - } - r->sign = a->sign; - r->expn = a->expn; - memcpy(r->tab, a->tab, a->len * sizeof(limb_t)); - return 0; -} - -/* equivalent to bf_set(r, a); bf_delete(a) */ -void bf_move(bf_t *r, bf_t *a) -{ - bf_context_t *s = r->ctx; - if (r == a) - return; - bf_free(s, r->tab); - *r = *a; -} - -static limb_t get_limbz(const bf_t *a, limb_t idx) -{ - if (idx >= a->len) - return 0; - else - return a->tab[idx]; -} - -/* get LIMB_BITS at bit position 'pos' in tab */ -static inline limb_t get_bits(const limb_t *tab, limb_t len, slimb_t pos) -{ - limb_t i, a0, a1; - int p; - - i = pos >> LIMB_LOG2_BITS; - p = pos & (LIMB_BITS - 1); - if (i < len) - a0 = tab[i]; - else - a0 = 0; - if (p == 0) { - return a0; - } else { - i++; - if (i < len) - a1 = tab[i]; - else - a1 = 0; - return (a0 >> p) | (a1 << (LIMB_BITS - p)); - } -} - -static inline limb_t get_bit(const limb_t *tab, limb_t len, slimb_t pos) -{ - slimb_t i; - i = pos >> LIMB_LOG2_BITS; - if (i < 0 || i >= len) - return 0; - return (tab[i] >> (pos & (LIMB_BITS - 1))) & 1; -} - -static inline limb_t limb_mask(int start, int last) -{ - limb_t v; - int n; - n = last - start + 1; - if (n == LIMB_BITS) - v = -1; - else - v = (((limb_t)1 << n) - 1) << start; - return v; -} - -static limb_t mp_scan_nz(const limb_t *tab, mp_size_t n) -{ - mp_size_t i; - for(i = 0; i < n; i++) { - if (tab[i] != 0) - return 1; - } - return 0; -} - -/* return != 0 if one bit between 0 and bit_pos inclusive is not zero. */ -static inline limb_t scan_bit_nz(const bf_t *r, slimb_t bit_pos) -{ - slimb_t pos; - limb_t v; - - pos = bit_pos >> LIMB_LOG2_BITS; - if (pos < 0) - return 0; - v = r->tab[pos] & limb_mask(0, bit_pos & (LIMB_BITS - 1)); - if (v != 0) - return 1; - pos--; - while (pos >= 0) { - if (r->tab[pos] != 0) - return 1; - pos--; - } - return 0; -} - -/* return the addend for rounding. Note that prec can be <= 0 (for - BF_FLAG_RADPNT_PREC) */ -static int bf_get_rnd_add(int *pret, const bf_t *r, limb_t l, - slimb_t prec, int rnd_mode) -{ - int add_one, inexact; - limb_t bit1, bit0; - - if (rnd_mode == BF_RNDF) { - bit0 = 1; /* faithful rounding does not honor the INEXACT flag */ - } else { - /* starting limb for bit 'prec + 1' */ - bit0 = scan_bit_nz(r, l * LIMB_BITS - 1 - bf_max(0, prec + 1)); - } - - /* get the bit at 'prec' */ - bit1 = get_bit(r->tab, l, l * LIMB_BITS - 1 - prec); - inexact = (bit1 | bit0) != 0; - - add_one = 0; - switch(rnd_mode) { - case BF_RNDZ: - break; - case BF_RNDN: - if (bit1) { - if (bit0) { - add_one = 1; - } else { - /* round to even */ - add_one = - get_bit(r->tab, l, l * LIMB_BITS - 1 - (prec - 1)); - } - } - break; - case BF_RNDD: - case BF_RNDU: - if (r->sign == (rnd_mode == BF_RNDD)) - add_one = inexact; - break; - case BF_RNDA: - add_one = inexact; - break; - case BF_RNDNA: - case BF_RNDF: - add_one = bit1; - break; - default: - abort(); - } - - if (inexact) - *pret |= BF_ST_INEXACT; - return add_one; -} - -static int bf_set_overflow(bf_t *r, int sign, limb_t prec, bf_flags_t flags) -{ - slimb_t i, l, e_max; - int rnd_mode; - - rnd_mode = flags & BF_RND_MASK; - if (prec == BF_PREC_INF || - rnd_mode == BF_RNDN || - rnd_mode == BF_RNDNA || - rnd_mode == BF_RNDA || - (rnd_mode == BF_RNDD && sign == 1) || - (rnd_mode == BF_RNDU && sign == 0)) { - bf_set_inf(r, sign); - } else { - /* set to maximum finite number */ - l = (prec + LIMB_BITS - 1) / LIMB_BITS; - if (bf_resize(r, l)) { - bf_set_nan(r); - return BF_ST_MEM_ERROR; - } - r->tab[0] = limb_mask((-prec) & (LIMB_BITS - 1), - LIMB_BITS - 1); - for(i = 1; i < l; i++) - r->tab[i] = (limb_t)-1; - e_max = (limb_t)1 << (bf_get_exp_bits(flags) - 1); - r->expn = e_max; - r->sign = sign; - } - return BF_ST_OVERFLOW | BF_ST_INEXACT; -} - -/* round to prec1 bits assuming 'r' is non zero and finite. 'r' is - assumed to have length 'l' (1 <= l <= r->len). Note: 'prec1' can be - infinite (BF_PREC_INF). 'ret' is 0 or BF_ST_INEXACT if the result - is known to be inexact. Can fail with BF_ST_MEM_ERROR in case of - overflow not returning infinity. */ -static int __bf_round(bf_t *r, limb_t prec1, bf_flags_t flags, limb_t l, - int ret) -{ - limb_t v, a; - int shift, add_one, rnd_mode; - slimb_t i, bit_pos, pos, e_min, e_max, e_range, prec; - - /* e_min and e_max are computed to match the IEEE 754 conventions */ - e_range = (limb_t)1 << (bf_get_exp_bits(flags) - 1); - e_min = -e_range + 3; - e_max = e_range; - - if (flags & BF_FLAG_RADPNT_PREC) { - /* 'prec' is the precision after the radix point */ - if (prec1 != BF_PREC_INF) - prec = r->expn + prec1; - else - prec = prec1; - } else if (unlikely(r->expn < e_min) && (flags & BF_FLAG_SUBNORMAL)) { - /* restrict the precision in case of potentially subnormal - result */ - assert(prec1 != BF_PREC_INF); - prec = prec1 - (e_min - r->expn); - } else { - prec = prec1; - } - - /* round to prec bits */ - rnd_mode = flags & BF_RND_MASK; - add_one = bf_get_rnd_add(&ret, r, l, prec, rnd_mode); - - if (prec <= 0) { - if (add_one) { - bf_resize(r, 1); /* cannot fail */ - r->tab[0] = (limb_t)1 << (LIMB_BITS - 1); - r->expn += 1 - prec; - ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; - return ret; - } else { - goto underflow; - } - } else if (add_one) { - limb_t carry; - - /* add one starting at digit 'prec - 1' */ - bit_pos = l * LIMB_BITS - 1 - (prec - 1); - pos = bit_pos >> LIMB_LOG2_BITS; - carry = (limb_t)1 << (bit_pos & (LIMB_BITS - 1)); - - for(i = pos; i < l; i++) { - v = r->tab[i] + carry; - carry = (v < carry); - r->tab[i] = v; - if (carry == 0) - break; - } - if (carry) { - /* shift right by one digit */ - v = 1; - for(i = l - 1; i >= pos; i--) { - a = r->tab[i]; - r->tab[i] = (a >> 1) | (v << (LIMB_BITS - 1)); - v = a; - } - r->expn++; - } - } - - /* check underflow */ - if (unlikely(r->expn < e_min)) { - if (flags & BF_FLAG_SUBNORMAL) { - /* if inexact, also set the underflow flag */ - if (ret & BF_ST_INEXACT) - ret |= BF_ST_UNDERFLOW; - } else { - underflow: - ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; - bf_set_zero(r, r->sign); - return ret; - } - } - - /* check overflow */ - if (unlikely(r->expn > e_max)) - return bf_set_overflow(r, r->sign, prec1, flags); - - /* keep the bits starting at 'prec - 1' */ - bit_pos = l * LIMB_BITS - 1 - (prec - 1); - i = bit_pos >> LIMB_LOG2_BITS; - if (i >= 0) { - shift = bit_pos & (LIMB_BITS - 1); - if (shift != 0) - r->tab[i] &= limb_mask(shift, LIMB_BITS - 1); - } else { - i = 0; - } - /* remove trailing zeros */ - while (r->tab[i] == 0) - i++; - if (i > 0) { - l -= i; - memmove(r->tab, r->tab + i, l * sizeof(limb_t)); - } - bf_resize(r, l); /* cannot fail */ - return ret; -} - -/* 'r' must be a finite number. */ -int bf_normalize_and_round(bf_t *r, limb_t prec1, bf_flags_t flags) -{ - limb_t l, v, a; - int shift, ret; - slimb_t i; - - // bf_print_str("bf_renorm", r); - l = r->len; - while (l > 0 && r->tab[l - 1] == 0) - l--; - if (l == 0) { - /* zero */ - r->expn = BF_EXP_ZERO; - bf_resize(r, 0); /* cannot fail */ - ret = 0; - } else { - r->expn -= (r->len - l) * LIMB_BITS; - /* shift to have the MSB set to '1' */ - v = r->tab[l - 1]; - shift = clz(v); - if (shift != 0) { - v = 0; - for(i = 0; i < l; i++) { - a = r->tab[i]; - r->tab[i] = (a << shift) | (v >> (LIMB_BITS - shift)); - v = a; - } - r->expn -= shift; - } - ret = __bf_round(r, prec1, flags, l, 0); - } - // bf_print_str("r_final", r); - return ret; -} - -/* return true if rounding can be done at precision 'prec' assuming - the exact result r is such that |r-a| <= 2^(EXP(a)-k). */ -/* XXX: check the case where the exponent would be incremented by the - rounding */ -int bf_can_round(const bf_t *a, slimb_t prec, bf_rnd_t rnd_mode, slimb_t k) -{ - BOOL is_rndn; - slimb_t bit_pos, n; - limb_t bit; - - if (a->expn == BF_EXP_INF || a->expn == BF_EXP_NAN) - return FALSE; - if (rnd_mode == BF_RNDF) { - return (k >= (prec + 1)); - } - if (a->expn == BF_EXP_ZERO) - return FALSE; - is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA); - if (k < (prec + 2)) - return FALSE; - bit_pos = a->len * LIMB_BITS - 1 - prec; - n = k - prec; - /* bit pattern for RNDN or RNDNA: 0111.. or 1000... - for other rounding modes: 000... or 111... - */ - bit = get_bit(a->tab, a->len, bit_pos); - bit_pos--; - n--; - bit ^= is_rndn; - /* XXX: slow, but a few iterations on average */ - while (n != 0) { - if (get_bit(a->tab, a->len, bit_pos) != bit) - return TRUE; - bit_pos--; - n--; - } - return FALSE; -} - -/* Cannot fail with BF_ST_MEM_ERROR. */ -int bf_round(bf_t *r, limb_t prec, bf_flags_t flags) -{ - if (r->len == 0) - return 0; - return __bf_round(r, prec, flags, r->len, 0); -} - -/* for debugging */ -static __maybe_unused void dump_limbs(const char *str, const limb_t *tab, limb_t n) -{ - limb_t i; - printf("%s: len=%" PRId_LIMB "\n", str, n); - for(i = 0; i < n; i++) { - printf("%" PRId_LIMB ": " FMT_LIMB "\n", - i, tab[i]); - } -} - -void mp_print_str(const char *str, const limb_t *tab, limb_t n) -{ - slimb_t i; - printf("%s= 0x", str); - for(i = n - 1; i >= 0; i--) { - if (i != (n - 1)) - printf("_"); - printf(FMT_LIMB, tab[i]); - } - printf("\n"); -} - -static __maybe_unused void mp_print_str_h(const char *str, - const limb_t *tab, limb_t n, - limb_t high) -{ - slimb_t i; - printf("%s= 0x", str); - printf(FMT_LIMB, high); - for(i = n - 1; i >= 0; i--) { - printf("_"); - printf(FMT_LIMB, tab[i]); - } - printf("\n"); -} - -/* for debugging */ -void bf_print_str(const char *str, const bf_t *a) -{ - slimb_t i; - printf("%s=", str); - - if (a->expn == BF_EXP_NAN) { - printf("NaN"); - } else { - if (a->sign) - putchar('-'); - if (a->expn == BF_EXP_ZERO) { - putchar('0'); - } else if (a->expn == BF_EXP_INF) { - printf("Inf"); - } else { - printf("0x0."); - for(i = a->len - 1; i >= 0; i--) - printf(FMT_LIMB, a->tab[i]); - printf("p%" PRId_LIMB, a->expn); - } - } - printf("\n"); -} - -/* compare the absolute value of 'a' and 'b'. Return < 0 if a < b, 0 - if a = b and > 0 otherwise. */ -int bf_cmpu(const bf_t *a, const bf_t *b) -{ - slimb_t i; - limb_t len, v1, v2; - - if (a->expn != b->expn) { - if (a->expn < b->expn) - return -1; - else - return 1; - } - len = bf_max(a->len, b->len); - for(i = len - 1; i >= 0; i--) { - v1 = get_limbz(a, a->len - len + i); - v2 = get_limbz(b, b->len - len + i); - if (v1 != v2) { - if (v1 < v2) - return -1; - else - return 1; - } - } - return 0; -} - -/* Full order: -0 < 0, NaN == NaN and NaN is larger than all other numbers */ -int bf_cmp_full(const bf_t *a, const bf_t *b) -{ - int res; - - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - if (a->expn == b->expn) - res = 0; - else if (a->expn == BF_EXP_NAN) - res = 1; - else - res = -1; - } else if (a->sign != b->sign) { - res = 1 - 2 * a->sign; - } else { - res = bf_cmpu(a, b); - if (a->sign) - res = -res; - } - return res; -} - -/* Standard floating point comparison: return 2 if one of the operands - is NaN (unordered) or -1, 0, 1 depending on the ordering assuming - -0 == +0 */ -int bf_cmp(const bf_t *a, const bf_t *b) -{ - int res; - - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - res = 2; - } else if (a->sign != b->sign) { - if (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO) - res = 0; - else - res = 1 - 2 * a->sign; - } else { - res = bf_cmpu(a, b); - if (a->sign) - res = -res; - } - return res; -} - -/* Compute the number of bits 'n' matching the pattern: - a= X1000..0 - b= X0111..1 - - When computing a-b, the result will have at least n leading zero - bits. - - Precondition: a > b and a.expn - b.expn = 0 or 1 -*/ -static limb_t count_cancelled_bits(const bf_t *a, const bf_t *b) -{ - slimb_t bit_offset, b_offset, n; - int p, p1; - limb_t v1, v2, mask; - - bit_offset = a->len * LIMB_BITS - 1; - b_offset = (b->len - a->len) * LIMB_BITS - (LIMB_BITS - 1) + - a->expn - b->expn; - n = 0; - - /* first search the equals bits */ - for(;;) { - v1 = get_limbz(a, bit_offset >> LIMB_LOG2_BITS); - v2 = get_bits(b->tab, b->len, bit_offset + b_offset); - // printf("v1=" FMT_LIMB " v2=" FMT_LIMB "\n", v1, v2); - if (v1 != v2) - break; - n += LIMB_BITS; - bit_offset -= LIMB_BITS; - } - /* find the position of the first different bit */ - p = clz(v1 ^ v2) + 1; - n += p; - /* then search for '0' in a and '1' in b */ - p = LIMB_BITS - p; - if (p > 0) { - /* search in the trailing p bits of v1 and v2 */ - mask = limb_mask(0, p - 1); - p1 = bf_min(clz(v1 & mask), clz((~v2) & mask)) - (LIMB_BITS - p); - n += p1; - if (p1 != p) - goto done; - } - bit_offset -= LIMB_BITS; - for(;;) { - v1 = get_limbz(a, bit_offset >> LIMB_LOG2_BITS); - v2 = get_bits(b->tab, b->len, bit_offset + b_offset); - // printf("v1=" FMT_LIMB " v2=" FMT_LIMB "\n", v1, v2); - if (v1 != 0 || v2 != -1) { - /* different: count the matching bits */ - p1 = bf_min(clz(v1), clz(~v2)); - n += p1; - break; - } - n += LIMB_BITS; - bit_offset -= LIMB_BITS; - } - done: - return n; -} - -static int bf_add_internal(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags, int b_neg) -{ - const bf_t *tmp; - int is_sub, ret, cmp_res, a_sign, b_sign; - - a_sign = a->sign; - b_sign = b->sign ^ b_neg; - is_sub = a_sign ^ b_sign; - cmp_res = bf_cmpu(a, b); - if (cmp_res < 0) { - tmp = a; - a = b; - b = tmp; - a_sign = b_sign; /* b_sign is never used later */ - } - /* abs(a) >= abs(b) */ - if (cmp_res == 0 && is_sub && a->expn < BF_EXP_INF) { - /* zero result */ - bf_set_zero(r, (flags & BF_RND_MASK) == BF_RNDD); - ret = 0; - } else if (a->len == 0 || b->len == 0) { - ret = 0; - if (a->expn >= BF_EXP_INF) { - if (a->expn == BF_EXP_NAN) { - /* at least one operand is NaN */ - bf_set_nan(r); - } else if (b->expn == BF_EXP_INF && is_sub) { - /* infinities with different signs */ - bf_set_nan(r); - ret = BF_ST_INVALID_OP; - } else { - bf_set_inf(r, a_sign); - } - } else { - /* at least one zero and not subtract */ - bf_set(r, a); - r->sign = a_sign; - goto renorm; - } - } else { - slimb_t d, a_offset, b_bit_offset, i, cancelled_bits; - limb_t carry, v1, v2, u, r_len, carry1, precl, tot_len, z, sub_mask; - - r->sign = a_sign; - r->expn = a->expn; - d = a->expn - b->expn; - /* must add more precision for the leading cancelled bits in - subtraction */ - if (is_sub) { - if (d <= 1) - cancelled_bits = count_cancelled_bits(a, b); - else - cancelled_bits = 1; - } else { - cancelled_bits = 0; - } - - /* add two extra bits for rounding */ - precl = (cancelled_bits + prec + 2 + LIMB_BITS - 1) / LIMB_BITS; - tot_len = bf_max(a->len, b->len + (d + LIMB_BITS - 1) / LIMB_BITS); - r_len = bf_min(precl, tot_len); - if (bf_resize(r, r_len)) - goto fail; - a_offset = a->len - r_len; - b_bit_offset = (b->len - r_len) * LIMB_BITS + d; - - /* compute the bits before for the rounding */ - carry = is_sub; - z = 0; - sub_mask = -is_sub; - i = r_len - tot_len; - while (i < 0) { - slimb_t ap, bp; - BOOL inflag; - - ap = a_offset + i; - bp = b_bit_offset + i * LIMB_BITS; - inflag = FALSE; - if (ap >= 0 && ap < a->len) { - v1 = a->tab[ap]; - inflag = TRUE; - } else { - v1 = 0; - } - if (bp + LIMB_BITS > 0 && bp < (slimb_t)(b->len * LIMB_BITS)) { - v2 = get_bits(b->tab, b->len, bp); - inflag = TRUE; - } else { - v2 = 0; - } - if (!inflag) { - /* outside 'a' and 'b': go directly to the next value - inside a or b so that the running time does not - depend on the exponent difference */ - i = 0; - if (ap < 0) - i = bf_min(i, -a_offset); - /* b_bit_offset + i * LIMB_BITS + LIMB_BITS >= 1 - equivalent to - i >= ceil(-b_bit_offset + 1 - LIMB_BITS) / LIMB_BITS) - */ - if (bp + LIMB_BITS <= 0) - i = bf_min(i, (-b_bit_offset) >> LIMB_LOG2_BITS); - } else { - i++; - } - v2 ^= sub_mask; - u = v1 + v2; - carry1 = u < v1; - u += carry; - carry = (u < carry) | carry1; - z |= u; - } - /* and the result */ - for(i = 0; i < r_len; i++) { - v1 = get_limbz(a, a_offset + i); - v2 = get_bits(b->tab, b->len, b_bit_offset + i * LIMB_BITS); - v2 ^= sub_mask; - u = v1 + v2; - carry1 = u < v1; - u += carry; - carry = (u < carry) | carry1; - r->tab[i] = u; - } - /* set the extra bits for the rounding */ - r->tab[0] |= (z != 0); - - /* carry is only possible in add case */ - if (!is_sub && carry) { - if (bf_resize(r, r_len + 1)) - goto fail; - r->tab[r_len] = 1; - r->expn += LIMB_BITS; - } - renorm: - ret = bf_normalize_and_round(r, prec, flags); - } - return ret; - fail: - bf_set_nan(r); - return BF_ST_MEM_ERROR; -} - -static int __bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_add_internal(r, a, b, prec, flags, 0); -} - -static int __bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_add_internal(r, a, b, prec, flags, 1); -} - -limb_t mp_add(limb_t *res, const limb_t *op1, const limb_t *op2, - limb_t n, limb_t carry) -{ - slimb_t i; - limb_t k, a, v, k1; - - k = carry; - for(i=0;i v; - v = a - k; - k = (v > a) | k1; - res[i] = v; - } - return k; -} - -/* compute 0 - op2 */ -static limb_t mp_neg(limb_t *res, const limb_t *op2, mp_size_t n, limb_t carry) -{ - int i; - limb_t k, a, v, k1; - - k = carry; - for(i=0;i v; - v = a - k; - k = (v > a) | k1; - res[i] = v; - } - return k; -} - -limb_t mp_sub_ui(limb_t *tab, limb_t b, mp_size_t n) -{ - mp_size_t i; - limb_t k, a, v; - - k=b; - for(i=0;i v; - tab[i] = a; - if (k == 0) - break; - } - return k; -} - -/* r = (a + high*B^n) >> shift. Return the remainder r (0 <= r < 2^shift). - 1 <= shift <= LIMB_BITS - 1 */ -static limb_t mp_shr(limb_t *tab_r, const limb_t *tab, mp_size_t n, - int shift, limb_t high) -{ - mp_size_t i; - limb_t l, a; - - assert(shift >= 1 && shift < LIMB_BITS); - l = high; - for(i = n - 1; i >= 0; i--) { - a = tab[i]; - tab_r[i] = (a >> shift) | (l << (LIMB_BITS - shift)); - l = a; - } - return l & (((limb_t)1 << shift) - 1); -} - -/* tabr[] = taba[] * b + l. Return the high carry */ -static limb_t mp_mul1(limb_t *tabr, const limb_t *taba, limb_t n, - limb_t b, limb_t l) -{ - limb_t i; - dlimb_t t; - - for(i = 0; i < n; i++) { - t = (dlimb_t)taba[i] * (dlimb_t)b + l; - tabr[i] = t; - l = t >> LIMB_BITS; - } - return l; -} - -/* tabr[] += taba[] * b, return the high word. */ -static limb_t mp_add_mul1(limb_t *tabr, const limb_t *taba, limb_t n, - limb_t b) -{ - limb_t i, l; - dlimb_t t; - - l = 0; - for(i = 0; i < n; i++) { - t = (dlimb_t)taba[i] * (dlimb_t)b + l + tabr[i]; - tabr[i] = t; - l = t >> LIMB_BITS; - } - return l; -} - -/* size of the result : op1_size + op2_size. */ -static void mp_mul_basecase(limb_t *result, - const limb_t *op1, limb_t op1_size, - const limb_t *op2, limb_t op2_size) -{ - limb_t i, r; - - result[op1_size] = mp_mul1(result, op1, op1_size, op2[0], 0); - for(i=1;i= FFT_MUL_THRESHOLD)) { - bf_t r_s, *r = &r_s; - r->tab = result; - /* XXX: optimize memory usage in API */ - if (fft_mul(s, r, (limb_t *)op1, op1_size, - (limb_t *)op2, op2_size, FFT_MUL_R_NORESIZE)) - return -1; - } else -#endif - { - mp_mul_basecase(result, op1, op1_size, op2, op2_size); - } - return 0; -} - -/* tabr[] -= taba[] * b. Return the value to substract to the high - word. */ -static limb_t mp_sub_mul1(limb_t *tabr, const limb_t *taba, limb_t n, - limb_t b) -{ - limb_t i, l; - dlimb_t t; - - l = 0; - for(i = 0; i < n; i++) { - t = tabr[i] - (dlimb_t)taba[i] * (dlimb_t)b - l; - tabr[i] = t; - l = -(t >> LIMB_BITS); - } - return l; -} - -/* WARNING: d must be >= 2^(LIMB_BITS-1) */ -static inline limb_t udiv1norm_init(limb_t d) -{ - limb_t a0, a1; - a1 = -d - 1; - a0 = -1; - return (((dlimb_t)a1 << LIMB_BITS) | a0) / d; -} - -/* return the quotient and the remainder in '*pr'of 'a1*2^LIMB_BITS+a0 - / d' with 0 <= a1 < d. */ -static inline limb_t udiv1norm(limb_t *pr, limb_t a1, limb_t a0, - limb_t d, limb_t d_inv) -{ - limb_t n1m, n_adj, q, r, ah; - dlimb_t a; - n1m = ((slimb_t)a0 >> (LIMB_BITS - 1)); - n_adj = a0 + (n1m & d); - a = (dlimb_t)d_inv * (a1 - n1m) + n_adj; - q = (a >> LIMB_BITS) + a1; - /* compute a - q * r and update q so that the remainder is\ - between 0 and d - 1 */ - a = ((dlimb_t)a1 << LIMB_BITS) | a0; - a = a - (dlimb_t)q * d - d; - ah = a >> LIMB_BITS; - q += 1 + ah; - r = (limb_t)a + (ah & d); - *pr = r; - return q; -} - -/* b must be >= 1 << (LIMB_BITS - 1) */ -static limb_t mp_div1norm(limb_t *tabr, const limb_t *taba, limb_t n, - limb_t b, limb_t r) -{ - slimb_t i; - - if (n >= UDIV1NORM_THRESHOLD) { - limb_t b_inv; - b_inv = udiv1norm_init(b); - for(i = n - 1; i >= 0; i--) { - tabr[i] = udiv1norm(&r, r, taba[i], b, b_inv); - } - } else { - dlimb_t a1; - for(i = n - 1; i >= 0; i--) { - a1 = ((dlimb_t)r << LIMB_BITS) | taba[i]; - tabr[i] = a1 / b; - r = a1 % b; - } - } - return r; -} - -static int mp_divnorm_large(bf_context_t *s, - limb_t *tabq, limb_t *taba, limb_t na, - const limb_t *tabb, limb_t nb); - -/* base case division: divides taba[0..na-1] by tabb[0..nb-1]. tabb[nb - - 1] must be >= 1 << (LIMB_BITS - 1). na - nb must be >= 0. 'taba' - is modified and contains the remainder (nb limbs). tabq[0..na-nb] - contains the quotient with tabq[na - nb] <= 1. */ -static int mp_divnorm(bf_context_t *s, limb_t *tabq, limb_t *taba, limb_t na, - const limb_t *tabb, limb_t nb) -{ - limb_t r, a, c, q, v, b1, b1_inv, n, dummy_r; - slimb_t i, j; - - b1 = tabb[nb - 1]; - if (nb == 1) { - taba[0] = mp_div1norm(tabq, taba, na, b1, 0); - return 0; - } - n = na - nb; - if (bf_min(n, nb) >= DIVNORM_LARGE_THRESHOLD) { - return mp_divnorm_large(s, tabq, taba, na, tabb, nb); - } - - if (n >= UDIV1NORM_THRESHOLD) - b1_inv = udiv1norm_init(b1); - else - b1_inv = 0; - - /* first iteration: the quotient is only 0 or 1 */ - q = 1; - for(j = nb - 1; j >= 0; j--) { - if (taba[n + j] != tabb[j]) { - if (taba[n + j] < tabb[j]) - q = 0; - break; - } - } - tabq[n] = q; - if (q) { - mp_sub(taba + n, taba + n, tabb, nb, 0); - } - - for(i = n - 1; i >= 0; i--) { - if (unlikely(taba[i + nb] >= b1)) { - q = -1; - } else if (b1_inv) { - q = udiv1norm(&dummy_r, taba[i + nb], taba[i + nb - 1], b1, b1_inv); - } else { - dlimb_t al; - al = ((dlimb_t)taba[i + nb] << LIMB_BITS) | taba[i + nb - 1]; - q = al / b1; - r = al % b1; - } - r = mp_sub_mul1(taba + i, tabb, nb, q); - - v = taba[i + nb]; - a = v - r; - c = (a > v); - taba[i + nb] = a; - - if (c != 0) { - /* negative result */ - for(;;) { - q--; - c = mp_add(taba + i, taba + i, tabb, nb, 0); - /* propagate carry and test if positive result */ - if (c != 0) { - if (++taba[i + nb] == 0) { - break; - } - } - } - } - tabq[i] = q; - } - return 0; -} - -/* compute r=B^(2*n)/a such as a*r < B^(2*n) < a*r + 2 with n >= 1. 'a' - has n limbs with a[n-1] >= B/2 and 'r' has n+1 limbs with r[n] = 1. - - See Modern Computer Arithmetic by Richard P. Brent and Paul - Zimmermann, algorithm 3.5 */ -int mp_recip(bf_context_t *s, limb_t *tabr, const limb_t *taba, limb_t n) -{ - mp_size_t l, h, k, i; - limb_t *tabxh, *tabt, c, *tabu; - - if (n <= 2) { - /* return ceil(B^(2*n)/a) - 1 */ - /* XXX: could avoid allocation */ - tabu = bf_malloc(s, sizeof(limb_t) * (2 * n + 1)); - tabt = bf_malloc(s, sizeof(limb_t) * (n + 2)); - if (!tabt || !tabu) - goto fail; - for(i = 0; i < 2 * n; i++) - tabu[i] = 0; - tabu[2 * n] = 1; - if (mp_divnorm(s, tabt, tabu, 2 * n + 1, taba, n)) - goto fail; - for(i = 0; i < n + 1; i++) - tabr[i] = tabt[i]; - if (mp_scan_nz(tabu, n) == 0) { - /* only happens for a=B^n/2 */ - mp_sub_ui(tabr, 1, n + 1); - } - } else { - l = (n - 1) / 2; - h = n - l; - /* n=2p -> l=p-1, h = p + 1, k = p + 3 - n=2p+1-> l=p, h = p + 1; k = p + 2 - */ - tabt = bf_malloc(s, sizeof(limb_t) * (n + h + 1)); - tabu = bf_malloc(s, sizeof(limb_t) * (n + 2 * h - l + 2)); - if (!tabt || !tabu) - goto fail; - tabxh = tabr + l; - if (mp_recip(s, tabxh, taba + l, h)) - goto fail; - if (mp_mul(s, tabt, taba, n, tabxh, h + 1)) /* n + h + 1 limbs */ - goto fail; - while (tabt[n + h] != 0) { - mp_sub_ui(tabxh, 1, h + 1); - c = mp_sub(tabt, tabt, taba, n, 0); - mp_sub_ui(tabt + n, c, h + 1); - } - /* T = B^(n+h) - T */ - mp_neg(tabt, tabt, n + h + 1, 0); - tabt[n + h]++; - if (mp_mul(s, tabu, tabt + l, n + h + 1 - l, tabxh, h + 1)) - goto fail; - /* n + 2*h - l + 2 limbs */ - k = 2 * h - l; - for(i = 0; i < l; i++) - tabr[i] = tabu[i + k]; - mp_add(tabr + l, tabr + l, tabu + 2 * h, h, 0); - } - bf_free(s, tabt); - bf_free(s, tabu); - return 0; - fail: - bf_free(s, tabt); - bf_free(s, tabu); - return -1; -} - -/* return -1, 0 or 1 */ -static int mp_cmp(const limb_t *taba, const limb_t *tabb, mp_size_t n) -{ - mp_size_t i; - for(i = n - 1; i >= 0; i--) { - if (taba[i] != tabb[i]) { - if (taba[i] < tabb[i]) - return -1; - else - return 1; - } - } - return 0; -} - -//#define DEBUG_DIVNORM_LARGE -//#define DEBUG_DIVNORM_LARGE2 - -/* subquadratic divnorm */ -static int mp_divnorm_large(bf_context_t *s, - limb_t *tabq, limb_t *taba, limb_t na, - const limb_t *tabb, limb_t nb) -{ - limb_t *tabb_inv, nq, *tabt, i, n; - nq = na - nb; -#ifdef DEBUG_DIVNORM_LARGE - printf("na=%d nb=%d nq=%d\n", (int)na, (int)nb, (int)nq); - mp_print_str("a", taba, na); - mp_print_str("b", tabb, nb); -#endif - assert(nq >= 1); - n = nq; - if (nq < nb) - n++; - tabb_inv = bf_malloc(s, sizeof(limb_t) * (n + 1)); - tabt = bf_malloc(s, sizeof(limb_t) * 2 * (n + 1)); - if (!tabb_inv || !tabt) - goto fail; - - if (n >= nb) { - for(i = 0; i < n - nb; i++) - tabt[i] = 0; - for(i = 0; i < nb; i++) - tabt[i + n - nb] = tabb[i]; - } else { - /* truncate B: need to increment it so that the approximate - inverse is smaller that the exact inverse */ - for(i = 0; i < n; i++) - tabt[i] = tabb[i + nb - n]; - if (mp_add_ui(tabt, 1, n)) { - /* tabt = B^n : tabb_inv = B^n */ - memset(tabb_inv, 0, n * sizeof(limb_t)); - tabb_inv[n] = 1; - goto recip_done; - } - } - if (mp_recip(s, tabb_inv, tabt, n)) - goto fail; - recip_done: - /* Q=A*B^-1 */ - if (mp_mul(s, tabt, tabb_inv, n + 1, taba + na - (n + 1), n + 1)) - goto fail; - - for(i = 0; i < nq + 1; i++) - tabq[i] = tabt[i + 2 * (n + 1) - (nq + 1)]; -#ifdef DEBUG_DIVNORM_LARGE - mp_print_str("q", tabq, nq + 1); -#endif - - bf_free(s, tabt); - bf_free(s, tabb_inv); - tabb_inv = NULL; - - /* R=A-B*Q */ - tabt = bf_malloc(s, sizeof(limb_t) * (na + 1)); - if (!tabt) - goto fail; - if (mp_mul(s, tabt, tabq, nq + 1, tabb, nb)) - goto fail; - /* we add one more limb for the result */ - mp_sub(taba, taba, tabt, nb + 1, 0); - bf_free(s, tabt); - /* the approximated quotient is smaller than than the exact one, - hence we may have to increment it */ -#ifdef DEBUG_DIVNORM_LARGE2 - int cnt = 0; - static int cnt_max; -#endif - for(;;) { - if (taba[nb] == 0 && mp_cmp(taba, tabb, nb) < 0) - break; - taba[nb] -= mp_sub(taba, taba, tabb, nb, 0); - mp_add_ui(tabq, 1, nq + 1); -#ifdef DEBUG_DIVNORM_LARGE2 - cnt++; -#endif - } -#ifdef DEBUG_DIVNORM_LARGE2 - if (cnt > cnt_max) { - cnt_max = cnt; - printf("\ncnt=%d nq=%d nb=%d\n", cnt_max, (int)nq, (int)nb); - } -#endif - return 0; - fail: - bf_free(s, tabb_inv); - bf_free(s, tabt); - return -1; -} - -int bf_mul(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - int ret, r_sign; - - if (a->len < b->len) { - const bf_t *tmp = a; - a = b; - b = tmp; - } - r_sign = a->sign ^ b->sign; - /* here b->len <= a->len */ - if (b->len == 0) { - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - bf_set_nan(r); - ret = 0; - } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_INF) { - if ((a->expn == BF_EXP_INF && b->expn == BF_EXP_ZERO) || - (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_INF)) { - bf_set_nan(r); - ret = BF_ST_INVALID_OP; - } else { - bf_set_inf(r, r_sign); - ret = 0; - } - } else { - bf_set_zero(r, r_sign); - ret = 0; - } - } else { - bf_t tmp, *r1 = NULL; - limb_t a_len, b_len, precl; - limb_t *a_tab, *b_tab; - - a_len = a->len; - b_len = b->len; - - if ((flags & BF_RND_MASK) == BF_RNDF) { - /* faithful rounding does not require using the full inputs */ - precl = (prec + 2 + LIMB_BITS - 1) / LIMB_BITS; - a_len = bf_min(a_len, precl); - b_len = bf_min(b_len, precl); - } - a_tab = a->tab + a->len - a_len; - b_tab = b->tab + b->len - b_len; - -#ifdef USE_FFT_MUL - if (b_len >= FFT_MUL_THRESHOLD) { - int mul_flags = 0; - if (r == a) - mul_flags |= FFT_MUL_R_OVERLAP_A; - if (r == b) - mul_flags |= FFT_MUL_R_OVERLAP_B; - if (fft_mul(r->ctx, r, a_tab, a_len, b_tab, b_len, mul_flags)) - goto fail; - } else -#endif - { - if (r == a || r == b) { - bf_init(r->ctx, &tmp); - r1 = r; - r = &tmp; - } - if (bf_resize(r, a_len + b_len)) { -#ifdef USE_FFT_MUL - fail: -#endif - bf_set_nan(r); - ret = BF_ST_MEM_ERROR; - goto done; - } - mp_mul_basecase(r->tab, a_tab, a_len, b_tab, b_len); - } - r->sign = r_sign; - r->expn = a->expn + b->expn; - ret = bf_normalize_and_round(r, prec, flags); - done: - if (r == &tmp) - bf_move(r1, &tmp); - } - return ret; -} - -/* multiply 'r' by 2^e */ -int bf_mul_2exp(bf_t *r, slimb_t e, limb_t prec, bf_flags_t flags) -{ - slimb_t e_max; - if (r->len == 0) - return 0; - e_max = ((limb_t)1 << BF_EXT_EXP_BITS_MAX) - 1; - e = bf_max(e, -e_max); - e = bf_min(e, e_max); - r->expn += e; - return __bf_round(r, prec, flags, r->len, 0); -} - -/* Return e such as a=m*2^e with m odd integer. return 0 if a is zero, - Infinite or Nan. */ -slimb_t bf_get_exp_min(const bf_t *a) -{ - slimb_t i; - limb_t v; - int k; - - for(i = 0; i < a->len; i++) { - v = a->tab[i]; - if (v != 0) { - k = ctz(v); - return a->expn - (a->len - i) * LIMB_BITS + k; - } - } - return 0; -} - -/* a and b must be finite numbers with a >= 0 and b > 0. 'q' is the - integer defined as floor(a/b) and r = a - q * b. */ -static void bf_tdivremu(bf_t *q, bf_t *r, - const bf_t *a, const bf_t *b) -{ - if (bf_cmpu(a, b) < 0) { - bf_set_ui(q, 0); - bf_set(r, a); - } else { - bf_div(q, a, b, bf_max(a->expn - b->expn + 1, 2), BF_RNDZ); - bf_rint(q, BF_RNDZ); - bf_mul(r, q, b, BF_PREC_INF, BF_RNDZ); - bf_sub(r, a, r, BF_PREC_INF, BF_RNDZ); - } -} - -static int __bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - int ret, r_sign; - limb_t n, nb, precl; - - r_sign = a->sign ^ b->sign; - if (a->expn >= BF_EXP_INF || b->expn >= BF_EXP_INF) { - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF && b->expn == BF_EXP_INF) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else if (a->expn == BF_EXP_INF) { - bf_set_inf(r, r_sign); - return 0; - } else { - bf_set_zero(r, r_sign); - return 0; - } - } else if (a->expn == BF_EXP_ZERO) { - if (b->expn == BF_EXP_ZERO) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set_zero(r, r_sign); - return 0; - } - } else if (b->expn == BF_EXP_ZERO) { - bf_set_inf(r, r_sign); - return BF_ST_DIVIDE_ZERO; - } - - /* number of limbs of the quotient (2 extra bits for rounding) */ - precl = (prec + 2 + LIMB_BITS - 1) / LIMB_BITS; - nb = b->len; - n = bf_max(a->len, precl); - - { - limb_t *taba, na; - slimb_t d; - - na = n + nb; - taba = bf_malloc(s, (na + 1) * sizeof(limb_t)); - if (!taba) - goto fail; - d = na - a->len; - memset(taba, 0, d * sizeof(limb_t)); - memcpy(taba + d, a->tab, a->len * sizeof(limb_t)); - if (bf_resize(r, n + 1)) - goto fail1; - if (mp_divnorm(s, r->tab, taba, na, b->tab, nb)) { - fail1: - bf_free(s, taba); - goto fail; - } - /* see if non zero remainder */ - if (mp_scan_nz(taba, nb)) - r->tab[0] |= 1; - bf_free(r->ctx, taba); - r->expn = a->expn - b->expn + LIMB_BITS; - r->sign = r_sign; - ret = bf_normalize_and_round(r, prec, flags); - } - return ret; - fail: - bf_set_nan(r); - return BF_ST_MEM_ERROR; -} - -/* division and remainder. - - rnd_mode is the rounding mode for the quotient. The additional - rounding mode BF_RND_EUCLIDIAN is supported. - - 'q' is an integer. 'r' is rounded with prec and flags (prec can be - BF_PREC_INF). -*/ -int bf_divrem(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b, - limb_t prec, bf_flags_t flags, int rnd_mode) -{ - bf_t a1_s, *a1 = &a1_s; - bf_t b1_s, *b1 = &b1_s; - int q_sign, ret; - BOOL is_ceil, is_rndn; - - assert(q != a && q != b); - assert(r != a && r != b); - assert(q != r); - - if (a->len == 0 || b->len == 0) { - bf_set_zero(q, 0); - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_ZERO) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set(r, a); - return bf_round(r, prec, flags); - } - } - - q_sign = a->sign ^ b->sign; - is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA); - switch(rnd_mode) { - default: - case BF_RNDZ: - case BF_RNDN: - case BF_RNDNA: - is_ceil = FALSE; - break; - case BF_RNDD: - is_ceil = q_sign; - break; - case BF_RNDU: - is_ceil = q_sign ^ 1; - break; - case BF_RNDA: - is_ceil = TRUE; - break; - case BF_DIVREM_EUCLIDIAN: - is_ceil = a->sign; - break; - } - - a1->expn = a->expn; - a1->tab = a->tab; - a1->len = a->len; - a1->sign = 0; - - b1->expn = b->expn; - b1->tab = b->tab; - b1->len = b->len; - b1->sign = 0; - - /* XXX: could improve to avoid having a large 'q' */ - bf_tdivremu(q, r, a1, b1); - if (bf_is_nan(q) || bf_is_nan(r)) - goto fail; - - if (r->len != 0) { - if (is_rndn) { - int res; - b1->expn--; - res = bf_cmpu(r, b1); - b1->expn++; - if (res > 0 || - (res == 0 && - (rnd_mode == BF_RNDNA || - get_bit(q->tab, q->len, q->len * LIMB_BITS - q->expn)))) { - goto do_sub_r; - } - } else if (is_ceil) { - do_sub_r: - ret = bf_add_si(q, q, 1, BF_PREC_INF, BF_RNDZ); - ret |= bf_sub(r, r, b1, BF_PREC_INF, BF_RNDZ); - if (ret & BF_ST_MEM_ERROR) - goto fail; - } - } - - r->sign ^= a->sign; - q->sign = q_sign; - return bf_round(r, prec, flags); - fail: - bf_set_nan(q); - bf_set_nan(r); - return BF_ST_MEM_ERROR; -} - -int bf_rem(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags, int rnd_mode) -{ - bf_t q_s, *q = &q_s; - int ret; - - bf_init(r->ctx, q); - ret = bf_divrem(q, r, a, b, prec, flags, rnd_mode); - bf_delete(q); - return ret; -} - -static inline int bf_get_limb(slimb_t *pres, const bf_t *a, int flags) -{ -#if LIMB_BITS == 32 - return bf_get_int32(pres, a, flags); -#else - return bf_get_int64(pres, a, flags); -#endif -} - -int bf_remquo(slimb_t *pq, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags, int rnd_mode) -{ - bf_t q_s, *q = &q_s; - int ret; - - bf_init(r->ctx, q); - ret = bf_divrem(q, r, a, b, prec, flags, rnd_mode); - bf_get_limb(pq, q, BF_GET_INT_MOD); - bf_delete(q); - return ret; -} - -static __maybe_unused inline limb_t mul_mod(limb_t a, limb_t b, limb_t m) -{ - dlimb_t t; - t = (dlimb_t)a * (dlimb_t)b; - return t % m; -} - -#if defined(USE_MUL_CHECK) -static limb_t mp_mod1(const limb_t *tab, limb_t n, limb_t m, limb_t r) -{ - slimb_t i; - dlimb_t t; - - for(i = n - 1; i >= 0; i--) { - t = ((dlimb_t)r << LIMB_BITS) | tab[i]; - r = t % m; - } - return r; -} -#endif - -static const uint16_t sqrt_table[192] = { -128,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,144,145,146,147,148,149,150,150,151,152,153,154,155,155,156,157,158,159,160,160,161,162,163,163,164,165,166,167,167,168,169,170,170,171,172,173,173,174,175,176,176,177,178,178,179,180,181,181,182,183,183,184,185,185,186,187,187,188,189,189,190,191,192,192,193,193,194,195,195,196,197,197,198,199,199,200,201,201,202,203,203,204,204,205,206,206,207,208,208,209,209,210,211,211,212,212,213,214,214,215,215,216,217,217,218,218,219,219,220,221,221,222,222,223,224,224,225,225,226,226,227,227,228,229,229,230,230,231,231,232,232,233,234,234,235,235,236,236,237,237,238,238,239,240,240,241,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,255, -}; - -/* a >= 2^(LIMB_BITS - 2). Return (s, r) with s=floor(sqrt(a)) and - r=a-s^2. 0 <= r <= 2 * s */ -static limb_t mp_sqrtrem1(limb_t *pr, limb_t a) -{ - limb_t s1, r1, s, r, q, u, num; - - /* use a table for the 16 -> 8 bit sqrt */ - s1 = sqrt_table[(a >> (LIMB_BITS - 8)) - 64]; - r1 = (a >> (LIMB_BITS - 16)) - s1 * s1; - if (r1 > 2 * s1) { - r1 -= 2 * s1 + 1; - s1++; - } - - /* one iteration to get a 32 -> 16 bit sqrt */ - num = (r1 << 8) | ((a >> (LIMB_BITS - 32 + 8)) & 0xff); - q = num / (2 * s1); /* q <= 2^8 */ - u = num % (2 * s1); - s = (s1 << 8) + q; - r = (u << 8) | ((a >> (LIMB_BITS - 32)) & 0xff); - r -= q * q; - if ((slimb_t)r < 0) { - s--; - r += 2 * s + 1; - } - -#if LIMB_BITS == 64 - s1 = s; - r1 = r; - /* one more iteration for 64 -> 32 bit sqrt */ - num = (r1 << 16) | ((a >> (LIMB_BITS - 64 + 16)) & 0xffff); - q = num / (2 * s1); /* q <= 2^16 */ - u = num % (2 * s1); - s = (s1 << 16) + q; - r = (u << 16) | ((a >> (LIMB_BITS - 64)) & 0xffff); - r -= q * q; - if ((slimb_t)r < 0) { - s--; - r += 2 * s + 1; - } -#endif - *pr = r; - return s; -} - -/* return floor(sqrt(a)) */ -limb_t bf_isqrt(limb_t a) -{ - limb_t s, r; - int k; - - if (a == 0) - return 0; - k = clz(a) & ~1; - s = mp_sqrtrem1(&r, a << k); - s >>= (k >> 1); - return s; -} - -static limb_t mp_sqrtrem2(limb_t *tabs, limb_t *taba) -{ - limb_t s1, r1, s, q, u, a0, a1; - dlimb_t r, num; - int l; - - a0 = taba[0]; - a1 = taba[1]; - s1 = mp_sqrtrem1(&r1, a1); - l = LIMB_BITS / 2; - num = ((dlimb_t)r1 << l) | (a0 >> l); - q = num / (2 * s1); - u = num % (2 * s1); - s = (s1 << l) + q; - r = ((dlimb_t)u << l) | (a0 & (((limb_t)1 << l) - 1)); - if (unlikely((q >> l) != 0)) - r -= (dlimb_t)1 << LIMB_BITS; /* special case when q=2^l */ - else - r -= q * q; - if ((slimb_t)(r >> LIMB_BITS) < 0) { - s--; - r += 2 * (dlimb_t)s + 1; - } - tabs[0] = s; - taba[0] = r; - return r >> LIMB_BITS; -} - -//#define DEBUG_SQRTREM - -/* tmp_buf must contain (n / 2 + 1 limbs). *prh contains the highest - limb of the remainder. */ -static int mp_sqrtrem_rec(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n, - limb_t *tmp_buf, limb_t *prh) -{ - limb_t l, h, rh, ql, qh, c, i; - - if (n == 1) { - *prh = mp_sqrtrem2(tabs, taba); - return 0; - } -#ifdef DEBUG_SQRTREM - mp_print_str("a", taba, 2 * n); -#endif - l = n / 2; - h = n - l; - if (mp_sqrtrem_rec(s, tabs + l, taba + 2 * l, h, tmp_buf, &qh)) - return -1; -#ifdef DEBUG_SQRTREM - mp_print_str("s1", tabs + l, h); - mp_print_str_h("r1", taba + 2 * l, h, qh); - mp_print_str_h("r2", taba + l, n, qh); -#endif - - /* the remainder is in taba + 2 * l. Its high bit is in qh */ - if (qh) { - mp_sub(taba + 2 * l, taba + 2 * l, tabs + l, h, 0); - } - /* instead of dividing by 2*s, divide by s (which is normalized) - and update q and r */ - if (mp_divnorm(s, tmp_buf, taba + l, n, tabs + l, h)) - return -1; - qh += tmp_buf[l]; - for(i = 0; i < l; i++) - tabs[i] = tmp_buf[i]; - ql = mp_shr(tabs, tabs, l, 1, qh & 1); - qh = qh >> 1; /* 0 or 1 */ - if (ql) - rh = mp_add(taba + l, taba + l, tabs + l, h, 0); - else - rh = 0; -#ifdef DEBUG_SQRTREM - mp_print_str_h("q", tabs, l, qh); - mp_print_str_h("u", taba + l, h, rh); -#endif - - mp_add_ui(tabs + l, qh, h); -#ifdef DEBUG_SQRTREM - mp_print_str_h("s2", tabs, n, sh); -#endif - - /* q = qh, tabs[l - 1 ... 0], r = taba[n - 1 ... l] */ - /* subtract q^2. if qh = 1 then q = B^l, so we can take shortcuts */ - if (qh) { - c = qh; - } else { - if (mp_mul(s, taba + n, tabs, l, tabs, l)) - return -1; - c = mp_sub(taba, taba, taba + n, 2 * l, 0); - } - rh -= mp_sub_ui(taba + 2 * l, c, n - 2 * l); - if ((slimb_t)rh < 0) { - mp_sub_ui(tabs, 1, n); - rh += mp_add_mul1(taba, tabs, n, 2); - rh += mp_add_ui(taba, 1, n); - } - *prh = rh; - return 0; -} - -/* 'taba' has 2*n limbs with n >= 1 and taba[2*n-1] >= 2 ^ (LIMB_BITS - - 2). Return (s, r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2 - * s. tabs has n limbs. r is returned in the lower n limbs of - taba. Its r[n] is the returned value of the function. */ -/* Algorithm from the article "Karatsuba Square Root" by Paul Zimmermann and - inspirated from its GMP implementation */ -int mp_sqrtrem(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n) -{ - limb_t tmp_buf1[8]; - limb_t *tmp_buf; - mp_size_t n2; - int ret; - n2 = n / 2 + 1; - if (n2 <= countof(tmp_buf1)) { - tmp_buf = tmp_buf1; - } else { - tmp_buf = bf_malloc(s, sizeof(limb_t) * n2); - if (!tmp_buf) - return -1; - } - ret = mp_sqrtrem_rec(s, tabs, taba, n, tmp_buf, taba + n); - if (tmp_buf != tmp_buf1) - bf_free(s, tmp_buf); - return ret; -} - -/* Integer square root with remainder. 'a' must be an integer. r = - floor(sqrt(a)) and rem = a - r^2. BF_ST_INEXACT is set if the result - is inexact. 'rem' can be NULL if the remainder is not needed. */ -int bf_sqrtrem(bf_t *r, bf_t *rem1, const bf_t *a) -{ - int ret; - - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - } else if (a->expn == BF_EXP_INF && a->sign) { - goto invalid_op; - } else { - bf_set(r, a); - } - if (rem1) - bf_set_ui(rem1, 0); - ret = 0; - } else if (a->sign) { - invalid_op: - bf_set_nan(r); - if (rem1) - bf_set_ui(rem1, 0); - ret = BF_ST_INVALID_OP; - } else { - bf_t rem_s, *rem; - - bf_sqrt(r, a, (a->expn + 1) / 2, BF_RNDZ); - bf_rint(r, BF_RNDZ); - /* see if the result is exact by computing the remainder */ - if (rem1) { - rem = rem1; - } else { - rem = &rem_s; - bf_init(r->ctx, rem); - } - /* XXX: could avoid recomputing the remainder */ - bf_mul(rem, r, r, BF_PREC_INF, BF_RNDZ); - bf_neg(rem); - bf_add(rem, rem, a, BF_PREC_INF, BF_RNDZ); - if (bf_is_nan(rem)) { - ret = BF_ST_MEM_ERROR; - goto done; - } - if (rem->len != 0) { - ret = BF_ST_INEXACT; - } else { - ret = 0; - } - done: - if (!rem1) - bf_delete(rem); - } - return ret; -} - -int bf_sqrt(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = a->ctx; - int ret; - - assert(r != a); - - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - } else if (a->expn == BF_EXP_INF && a->sign) { - goto invalid_op; - } else { - bf_set(r, a); - } - ret = 0; - } else if (a->sign) { - invalid_op: - bf_set_nan(r); - ret = BF_ST_INVALID_OP; - } else { - limb_t *a1; - slimb_t n, n1; - limb_t res; - - /* convert the mantissa to an integer with at least 2 * - prec + 4 bits */ - n = (2 * (prec + 2) + 2 * LIMB_BITS - 1) / (2 * LIMB_BITS); - if (bf_resize(r, n)) - goto fail; - a1 = bf_malloc(s, sizeof(limb_t) * 2 * n); - if (!a1) - goto fail; - n1 = bf_min(2 * n, a->len); - memset(a1, 0, (2 * n - n1) * sizeof(limb_t)); - memcpy(a1 + 2 * n - n1, a->tab + a->len - n1, n1 * sizeof(limb_t)); - if (a->expn & 1) { - res = mp_shr(a1, a1, 2 * n, 1, 0); - } else { - res = 0; - } - if (mp_sqrtrem(s, r->tab, a1, n)) { - bf_free(s, a1); - goto fail; - } - if (!res) { - res = mp_scan_nz(a1, n + 1); - } - bf_free(s, a1); - if (!res) { - res = mp_scan_nz(a->tab, a->len - n1); - } - if (res != 0) - r->tab[0] |= 1; - r->sign = 0; - r->expn = (a->expn + 1) >> 1; - ret = bf_round(r, prec, flags); - } - return ret; - fail: - bf_set_nan(r); - return BF_ST_MEM_ERROR; -} - -static no_inline int bf_op2(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags, bf_op2_func_t *func) -{ - bf_t tmp; - int ret; - - if (r == a || r == b) { - bf_init(r->ctx, &tmp); - ret = func(&tmp, a, b, prec, flags); - bf_move(r, &tmp); - } else { - ret = func(r, a, b, prec, flags); - } - return ret; -} - -int bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_op2(r, a, b, prec, flags, __bf_add); -} - -int bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_op2(r, a, b, prec, flags, __bf_sub); -} - -int bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_op2(r, a, b, prec, flags, __bf_div); -} - -int bf_mul_ui(bf_t *r, const bf_t *a, uint64_t b1, limb_t prec, - bf_flags_t flags) -{ - bf_t b; - int ret; - bf_init(r->ctx, &b); - ret = bf_set_ui(&b, b1); - ret |= bf_mul(r, a, &b, prec, flags); - bf_delete(&b); - return ret; -} - -int bf_mul_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, - bf_flags_t flags) -{ - bf_t b; - int ret; - bf_init(r->ctx, &b); - ret = bf_set_si(&b, b1); - ret |= bf_mul(r, a, &b, prec, flags); - bf_delete(&b); - return ret; -} - -int bf_add_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, - bf_flags_t flags) -{ - bf_t b; - int ret; - - bf_init(r->ctx, &b); - ret = bf_set_si(&b, b1); - ret |= bf_add(r, a, &b, prec, flags); - bf_delete(&b); - return ret; -} - -static int bf_pow_ui(bf_t *r, const bf_t *a, limb_t b, limb_t prec, - bf_flags_t flags) -{ - int ret, n_bits, i; - - assert(r != a); - if (b == 0) - return bf_set_ui(r, 1); - ret = bf_set(r, a); - n_bits = LIMB_BITS - clz(b); - for(i = n_bits - 2; i >= 0; i--) { - ret |= bf_mul(r, r, r, prec, flags); - if ((b >> i) & 1) - ret |= bf_mul(r, r, a, prec, flags); - } - return ret; -} - -static int bf_pow_ui_ui(bf_t *r, limb_t a1, limb_t b, - limb_t prec, bf_flags_t flags) -{ - bf_t a; - int ret; - -#ifdef USE_BF_DEC - if (a1 == 10 && b <= LIMB_DIGITS) { - /* use precomputed powers. We do not round at this point - because we expect the caller to do it */ - ret = bf_set_ui(r, mp_pow_dec[b]); - } else -#endif - { - bf_init(r->ctx, &a); - ret = bf_set_ui(&a, a1); - ret |= bf_pow_ui(r, &a, b, prec, flags); - bf_delete(&a); - } - return ret; -} - -/* convert to integer (infinite precision) */ -int bf_rint(bf_t *r, int rnd_mode) -{ - return bf_round(r, 0, rnd_mode | BF_FLAG_RADPNT_PREC); -} - -/* logical operations */ -#define BF_LOGIC_OR 0 -#define BF_LOGIC_XOR 1 -#define BF_LOGIC_AND 2 - -static inline limb_t bf_logic_op1(limb_t a, limb_t b, int op) -{ - switch(op) { - case BF_LOGIC_OR: - return a | b; - case BF_LOGIC_XOR: - return a ^ b; - default: - case BF_LOGIC_AND: - return a & b; - } -} - -static int bf_logic_op(bf_t *r, const bf_t *a1, const bf_t *b1, int op) -{ - bf_t b1_s, a1_s, *a, *b; - limb_t a_sign, b_sign, r_sign; - slimb_t l, i, a_bit_offset, b_bit_offset; - limb_t v1, v2, v1_mask, v2_mask, r_mask; - int ret; - - assert(r != a1 && r != b1); - - if (a1->expn <= 0) - a_sign = 0; /* minus zero is considered as positive */ - else - a_sign = a1->sign; - - if (b1->expn <= 0) - b_sign = 0; /* minus zero is considered as positive */ - else - b_sign = b1->sign; - - if (a_sign) { - a = &a1_s; - bf_init(r->ctx, a); - if (bf_add_si(a, a1, 1, BF_PREC_INF, BF_RNDZ)) { - b = NULL; - goto fail; - } - } else { - a = (bf_t *)a1; - } - - if (b_sign) { - b = &b1_s; - bf_init(r->ctx, b); - if (bf_add_si(b, b1, 1, BF_PREC_INF, BF_RNDZ)) - goto fail; - } else { - b = (bf_t *)b1; - } - - r_sign = bf_logic_op1(a_sign, b_sign, op); - if (op == BF_LOGIC_AND && r_sign == 0) { - /* no need to compute extra zeros for and */ - if (a_sign == 0 && b_sign == 0) - l = bf_min(a->expn, b->expn); - else if (a_sign == 0) - l = a->expn; - else - l = b->expn; - } else { - l = bf_max(a->expn, b->expn); - } - /* Note: a or b can be zero */ - l = (bf_max(l, 1) + LIMB_BITS - 1) / LIMB_BITS; - if (bf_resize(r, l)) - goto fail; - a_bit_offset = a->len * LIMB_BITS - a->expn; - b_bit_offset = b->len * LIMB_BITS - b->expn; - v1_mask = -a_sign; - v2_mask = -b_sign; - r_mask = -r_sign; - for(i = 0; i < l; i++) { - v1 = get_bits(a->tab, a->len, a_bit_offset + i * LIMB_BITS) ^ v1_mask; - v2 = get_bits(b->tab, b->len, b_bit_offset + i * LIMB_BITS) ^ v2_mask; - r->tab[i] = bf_logic_op1(v1, v2, op) ^ r_mask; - } - r->expn = l * LIMB_BITS; - r->sign = r_sign; - bf_normalize_and_round(r, BF_PREC_INF, BF_RNDZ); /* cannot fail */ - if (r_sign) { - if (bf_add_si(r, r, -1, BF_PREC_INF, BF_RNDZ)) - goto fail; - } - ret = 0; - done: - if (a == &a1_s) - bf_delete(a); - if (b == &b1_s) - bf_delete(b); - return ret; - fail: - bf_set_nan(r); - ret = BF_ST_MEM_ERROR; - goto done; -} - -/* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */ -int bf_logic_or(bf_t *r, const bf_t *a, const bf_t *b) -{ - return bf_logic_op(r, a, b, BF_LOGIC_OR); -} - -/* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */ -int bf_logic_xor(bf_t *r, const bf_t *a, const bf_t *b) -{ - return bf_logic_op(r, a, b, BF_LOGIC_XOR); -} - -/* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */ -int bf_logic_and(bf_t *r, const bf_t *a, const bf_t *b) -{ - return bf_logic_op(r, a, b, BF_LOGIC_AND); -} - -/* conversion between fixed size types */ - -typedef union { - double d; - uint64_t u; -} Float64Union; - -int bf_get_float64(const bf_t *a, double *pres, bf_rnd_t rnd_mode) -{ - Float64Union u; - int e, ret; - uint64_t m; - - ret = 0; - if (a->expn == BF_EXP_NAN) { - u.u = 0x7ff8000000000000; /* quiet nan */ - } else { - bf_t b_s, *b = &b_s; - - bf_init(a->ctx, b); - bf_set(b, a); - if (bf_is_finite(b)) { - ret = bf_round(b, 53, rnd_mode | BF_FLAG_SUBNORMAL | bf_set_exp_bits(11)); - } - if (b->expn == BF_EXP_INF) { - e = (1 << 11) - 1; - m = 0; - } else if (b->expn == BF_EXP_ZERO) { - e = 0; - m = 0; - } else { - e = b->expn + 1023 - 1; -#if LIMB_BITS == 32 - if (b->len == 2) { - m = ((uint64_t)b->tab[1] << 32) | b->tab[0]; - } else { - m = ((uint64_t)b->tab[0] << 32); - } -#else - m = b->tab[0]; -#endif - if (e <= 0) { - /* subnormal */ - m = m >> (12 - e); - e = 0; - } else { - m = (m << 1) >> 12; - } - } - u.u = m | ((uint64_t)e << 52) | ((uint64_t)b->sign << 63); - bf_delete(b); - } - *pres = u.d; - return ret; -} - -int bf_set_float64(bf_t *a, double d) -{ - Float64Union u; - uint64_t m; - int shift, e, sgn; - - u.d = d; - sgn = u.u >> 63; - e = (u.u >> 52) & ((1 << 11) - 1); - m = u.u & (((uint64_t)1 << 52) - 1); - if (e == ((1 << 11) - 1)) { - if (m != 0) { - bf_set_nan(a); - } else { - bf_set_inf(a, sgn); - } - } else if (e == 0) { - if (m == 0) { - bf_set_zero(a, sgn); - } else { - /* subnormal number */ - m <<= 12; - shift = clz64(m); - m <<= shift; - e = -shift; - goto norm; - } - } else { - m = (m << 11) | ((uint64_t)1 << 63); - norm: - a->expn = e - 1023 + 1; -#if LIMB_BITS == 32 - if (bf_resize(a, 2)) - goto fail; - a->tab[0] = m; - a->tab[1] = m >> 32; -#else - if (bf_resize(a, 1)) - goto fail; - a->tab[0] = m; -#endif - a->sign = sgn; - } - return 0; -fail: - bf_set_nan(a); - return BF_ST_MEM_ERROR; -} - -/* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there - is an overflow and 0 otherwise. */ -int bf_get_int32(int *pres, const bf_t *a, int flags) -{ - uint32_t v; - int ret; - if (a->expn >= BF_EXP_INF) { - ret = BF_ST_INVALID_OP; - if (flags & BF_GET_INT_MOD) { - v = 0; - } else if (a->expn == BF_EXP_INF) { - v = (uint32_t)INT32_MAX + a->sign; - } else { - v = INT32_MAX; - } - } else if (a->expn <= 0) { - v = 0; - ret = 0; - } else if (a->expn <= 31) { - v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); - if (a->sign) - v = -v; - ret = 0; - } else if (!(flags & BF_GET_INT_MOD)) { - ret = BF_ST_INVALID_OP; - if (a->sign) { - v = (uint32_t)INT32_MAX + 1; - if (a->expn == 32 && - (a->tab[a->len - 1] >> (LIMB_BITS - 32)) == v) { - ret = 0; - } - } else { - v = INT32_MAX; - } - } else { - v = get_bits(a->tab, a->len, a->len * LIMB_BITS - a->expn); - if (a->sign) - v = -v; - ret = 0; - } - *pres = v; - return ret; -} - -/* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there - is an overflow and 0 otherwise. */ -int bf_get_int64(int64_t *pres, const bf_t *a, int flags) -{ - uint64_t v; - int ret; - if (a->expn >= BF_EXP_INF) { - ret = BF_ST_INVALID_OP; - if (flags & BF_GET_INT_MOD) { - v = 0; - } else if (a->expn == BF_EXP_INF) { - v = (uint64_t)INT64_MAX + a->sign; - } else { - v = INT64_MAX; - } - } else if (a->expn <= 0) { - v = 0; - ret = 0; - } else if (a->expn <= 63) { -#if LIMB_BITS == 32 - if (a->expn <= 32) - v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); - else - v = (((uint64_t)a->tab[a->len - 1] << 32) | - get_limbz(a, a->len - 2)) >> (64 - a->expn); -#else - v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); -#endif - if (a->sign) - v = -v; - ret = 0; - } else if (!(flags & BF_GET_INT_MOD)) { - ret = BF_ST_INVALID_OP; - if (a->sign) { - uint64_t v1; - v = (uint64_t)INT64_MAX + 1; - if (a->expn == 64) { - v1 = a->tab[a->len - 1]; -#if LIMB_BITS == 32 - v1 = (v1 << 32) | get_limbz(a, a->len - 2); -#endif - if (v1 == v) - ret = 0; - } - } else { - v = INT64_MAX; - } - } else { - slimb_t bit_pos = a->len * LIMB_BITS - a->expn; - v = get_bits(a->tab, a->len, bit_pos); -#if LIMB_BITS == 32 - v |= (uint64_t)get_bits(a->tab, a->len, bit_pos + 32) << 32; -#endif - if (a->sign) - v = -v; - ret = 0; - } - *pres = v; - return ret; -} - -/* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there - is an overflow and 0 otherwise. */ -int bf_get_uint64(uint64_t *pres, const bf_t *a) -{ - uint64_t v; - int ret; - if (a->expn == BF_EXP_NAN) { - goto overflow; - } else if (a->expn <= 0) { - v = 0; - ret = 0; - } else if (a->sign) { - v = 0; - ret = BF_ST_INVALID_OP; - } else if (a->expn <= 64) { -#if LIMB_BITS == 32 - if (a->expn <= 32) - v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); - else - v = (((uint64_t)a->tab[a->len - 1] << 32) | - get_limbz(a, a->len - 2)) >> (64 - a->expn); -#else - v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); -#endif - ret = 0; - } else { - overflow: - v = UINT64_MAX; - ret = BF_ST_INVALID_OP; - } - *pres = v; - return ret; -} - -/* base conversion from radix */ - -static const uint8_t digits_per_limb_table[BF_RADIX_MAX - 1] = { -#if LIMB_BITS == 32 -32,20,16,13,12,11,10,10, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, -#else -64,40,32,27,24,22,21,20,19,18,17,17,16,16,16,15,15,15,14,14,14,14,13,13,13,13,13,13,13,12,12,12,12,12,12, -#endif -}; - -static limb_t get_limb_radix(int radix) -{ - int i, k; - limb_t radixl; - - k = digits_per_limb_table[radix - 2]; - radixl = radix; - for(i = 1; i < k; i++) - radixl *= radix; - return radixl; -} - -/* return != 0 if error */ -static int bf_integer_from_radix_rec(bf_t *r, const limb_t *tab, - limb_t n, int level, limb_t n0, - limb_t radix, bf_t *pow_tab) -{ - int ret; - if (n == 1) { - ret = bf_set_ui(r, tab[0]); - } else { - bf_t T_s, *T = &T_s, *B; - limb_t n1, n2; - - n2 = (((n0 * 2) >> (level + 1)) + 1) / 2; - n1 = n - n2; - // printf("level=%d n0=%ld n1=%ld n2=%ld\n", level, n0, n1, n2); - B = &pow_tab[level]; - if (B->len == 0) { - ret = bf_pow_ui_ui(B, radix, n2, BF_PREC_INF, BF_RNDZ); - if (ret) - return ret; - } - ret = bf_integer_from_radix_rec(r, tab + n2, n1, level + 1, n0, - radix, pow_tab); - if (ret) - return ret; - ret = bf_mul(r, r, B, BF_PREC_INF, BF_RNDZ); - if (ret) - return ret; - bf_init(r->ctx, T); - ret = bf_integer_from_radix_rec(T, tab, n2, level + 1, n0, - radix, pow_tab); - if (!ret) - ret = bf_add(r, r, T, BF_PREC_INF, BF_RNDZ); - bf_delete(T); - } - return ret; - // bf_print_str(" r=", r); -} - -/* return 0 if OK != 0 if memory error */ -static int bf_integer_from_radix(bf_t *r, const limb_t *tab, - limb_t n, limb_t radix) -{ - bf_context_t *s = r->ctx; - int pow_tab_len, i, ret; - limb_t radixl; - bf_t *pow_tab; - - radixl = get_limb_radix(radix); - pow_tab_len = ceil_log2(n) + 2; /* XXX: check */ - pow_tab = bf_malloc(s, sizeof(pow_tab[0]) * pow_tab_len); - if (!pow_tab) - return -1; - for(i = 0; i < pow_tab_len; i++) - bf_init(r->ctx, &pow_tab[i]); - ret = bf_integer_from_radix_rec(r, tab, n, 0, n, radixl, pow_tab); - for(i = 0; i < pow_tab_len; i++) { - bf_delete(&pow_tab[i]); - } - bf_free(s, pow_tab); - return ret; -} - -/* compute and round T * radix^expn. */ -int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix, - slimb_t expn, limb_t prec, bf_flags_t flags) -{ - int ret, expn_sign, overflow; - slimb_t e, extra_bits, prec1, ziv_extra_bits; - bf_t B_s, *B = &B_s; - - if (T->len == 0) { - return bf_set(r, T); - } else if (expn == 0) { - ret = bf_set(r, T); - ret |= bf_round(r, prec, flags); - return ret; - } - - e = expn; - expn_sign = 0; - if (e < 0) { - e = -e; - expn_sign = 1; - } - bf_init(r->ctx, B); - if (prec == BF_PREC_INF) { - /* infinite precision: only used if the result is known to be exact */ - ret = bf_pow_ui_ui(B, radix, e, BF_PREC_INF, BF_RNDN); - if (expn_sign) { - ret |= bf_div(r, T, B, T->len * LIMB_BITS, BF_RNDN); - } else { - ret |= bf_mul(r, T, B, BF_PREC_INF, BF_RNDN); - } - } else { - ziv_extra_bits = 16; - for(;;) { - prec1 = prec + ziv_extra_bits; - /* XXX: correct overflow/underflow handling */ - /* XXX: rigorous error analysis needed */ - extra_bits = ceil_log2(e) * 2 + 1; - ret = bf_pow_ui_ui(B, radix, e, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); - overflow = !bf_is_finite(B); - /* XXX: if bf_pow_ui_ui returns an exact result, can stop - after the next operation */ - if (expn_sign) - ret |= bf_div(r, T, B, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); - else - ret |= bf_mul(r, T, B, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); - if (ret & BF_ST_MEM_ERROR) - break; - if ((ret & BF_ST_INEXACT) && - !bf_can_round(r, prec, flags & BF_RND_MASK, prec1) && - !overflow) { - /* and more precision and retry */ - ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2); - } else { - /* XXX: need to use __bf_round() to pass the inexact - flag for the subnormal case */ - ret = bf_round(r, prec, flags) | (ret & BF_ST_INEXACT); - break; - } - } - } - bf_delete(B); - return ret; -} - -static inline int to_digit(int c) -{ - if (c >= '0' && c <= '9') - return c - '0'; - else if (c >= 'A' && c <= 'Z') - return c - 'A' + 10; - else if (c >= 'a' && c <= 'z') - return c - 'a' + 10; - else - return 36; -} - -/* add a limb at 'pos' and decrement pos. new space is created if - needed. Return 0 if OK, -1 if memory error */ -static int bf_add_limb(bf_t *a, slimb_t *ppos, limb_t v) -{ - slimb_t pos; - pos = *ppos; - if (unlikely(pos < 0)) { - limb_t new_size, d, *new_tab; - new_size = bf_max(a->len + 1, a->len * 3 / 2); - new_tab = bf_realloc(a->ctx, a->tab, sizeof(limb_t) * new_size); - if (!new_tab) - return -1; - a->tab = new_tab; - d = new_size - a->len; - memmove(a->tab + d, a->tab, a->len * sizeof(limb_t)); - a->len = new_size; - pos += d; - } - a->tab[pos--] = v; - *ppos = pos; - return 0; -} - -static int bf_tolower(int c) -{ - if (c >= 'A' && c <= 'Z') - c = c - 'A' + 'a'; - return c; -} - -static int strcasestart(const char *str, const char *val, const char **ptr) -{ - const char *p, *q; - p = str; - q = val; - while (*q != '\0') { - if (bf_tolower(*p) != *q) - return 0; - p++; - q++; - } - if (ptr) - *ptr = p; - return 1; -} - -static int bf_atof_internal(bf_t *r, slimb_t *pexponent, - const char *str, const char **pnext, int radix, - limb_t prec, bf_flags_t flags, BOOL is_dec) -{ - const char *p, *p_start; - int is_neg, radix_bits, exp_is_neg, ret, digits_per_limb, shift; - limb_t cur_limb; - slimb_t pos, expn, int_len, digit_count; - BOOL has_decpt, is_bin_exp; - bf_t a_s, *a; - - *pexponent = 0; - p = str; - if (!(flags & BF_ATOF_NO_NAN_INF) && radix <= 16 && - strcasestart(p, "nan", &p)) { - bf_set_nan(r); - ret = 0; - goto done; - } - is_neg = 0; - - if (p[0] == '+') { - p++; - p_start = p; - } else if (p[0] == '-') { - is_neg = 1; - p++; - p_start = p; - } else { - p_start = p; - } - if (p[0] == '0') { - if ((p[1] == 'x' || p[1] == 'X') && - (radix == 0 || radix == 16) && - !(flags & BF_ATOF_NO_HEX)) { - radix = 16; - p += 2; - } else if ((p[1] == 'o' || p[1] == 'O') && - radix == 0 && (flags & BF_ATOF_BIN_OCT)) { - p += 2; - radix = 8; - } else if ((p[1] == 'b' || p[1] == 'B') && - radix == 0 && (flags & BF_ATOF_BIN_OCT)) { - p += 2; - radix = 2; - } else { - goto no_prefix; - } - /* there must be a digit after the prefix */ - if (to_digit((uint8_t)*p) >= radix) { - bf_set_nan(r); - ret = 0; - goto done; - } - no_prefix: ; - } else { - if (!(flags & BF_ATOF_NO_NAN_INF) && radix <= 16 && - strcasestart(p, "inf", &p)) { - bf_set_inf(r, is_neg); - ret = 0; - goto done; - } - } - - if (radix == 0) - radix = 10; - if (is_dec) { - assert(radix == 10); - radix_bits = 0; - a = r; - } else if ((radix & (radix - 1)) != 0) { - radix_bits = 0; /* base is not a power of two */ - a = &a_s; - bf_init(r->ctx, a); - } else { - radix_bits = ceil_log2(radix); - a = r; - } - - /* skip leading zeros */ - /* XXX: could also skip zeros after the decimal point */ - while (*p == '0') - p++; - - if (radix_bits) { - shift = digits_per_limb = LIMB_BITS; - } else { - radix_bits = 0; - shift = digits_per_limb = digits_per_limb_table[radix - 2]; - } - cur_limb = 0; - bf_resize(a, 1); - pos = 0; - has_decpt = FALSE; - int_len = digit_count = 0; - for(;;) { - limb_t c; - if (*p == '.' && (p > p_start || to_digit(p[1]) < radix)) { - if (has_decpt) - break; - has_decpt = TRUE; - int_len = digit_count; - p++; - } - c = to_digit(*p); - if (c >= radix) - break; - digit_count++; - p++; - if (radix_bits) { - shift -= radix_bits; - if (shift <= 0) { - cur_limb |= c >> (-shift); - if (bf_add_limb(a, &pos, cur_limb)) - goto mem_error; - if (shift < 0) - cur_limb = c << (LIMB_BITS + shift); - else - cur_limb = 0; - shift += LIMB_BITS; - } else { - cur_limb |= c << shift; - } - } else { - cur_limb = cur_limb * radix + c; - shift--; - if (shift == 0) { - if (bf_add_limb(a, &pos, cur_limb)) - goto mem_error; - shift = digits_per_limb; - cur_limb = 0; - } - } - } - if (!has_decpt) - int_len = digit_count; - - /* add the last limb and pad with zeros */ - if (shift != digits_per_limb) { - if (radix_bits == 0) { - while (shift != 0) { - cur_limb *= radix; - shift--; - } - } - if (bf_add_limb(a, &pos, cur_limb)) { - mem_error: - ret = BF_ST_MEM_ERROR; - if (!radix_bits) - bf_delete(a); - bf_set_nan(r); - goto done; - } - } - - /* reset the next limbs to zero (we prefer to reallocate in the - renormalization) */ - memset(a->tab, 0, (pos + 1) * sizeof(limb_t)); - - if (p == p_start) { - ret = 0; - if (!radix_bits) - bf_delete(a); - bf_set_nan(r); - goto done; - } - - /* parse the exponent, if any */ - expn = 0; - is_bin_exp = FALSE; - if (((radix == 10 && (*p == 'e' || *p == 'E')) || - (radix != 10 && (*p == '@' || - (radix_bits && (*p == 'p' || *p == 'P'))))) && - p > p_start) { - is_bin_exp = (*p == 'p' || *p == 'P'); - p++; - exp_is_neg = 0; - if (*p == '+') { - p++; - } else if (*p == '-') { - exp_is_neg = 1; - p++; - } - for(;;) { - int c; - c = to_digit(*p); - if (c >= 10) - break; - if (unlikely(expn > ((BF_RAW_EXP_MAX - 2 - 9) / 10))) { - /* exponent overflow */ - if (exp_is_neg) { - bf_set_zero(r, is_neg); - ret = BF_ST_UNDERFLOW | BF_ST_INEXACT; - } else { - bf_set_inf(r, is_neg); - ret = BF_ST_OVERFLOW | BF_ST_INEXACT; - } - goto done; - } - p++; - expn = expn * 10 + c; - } - if (exp_is_neg) - expn = -expn; - } - if (is_dec) { - a->expn = expn + int_len; - a->sign = is_neg; - ret = bfdec_normalize_and_round((bfdec_t *)a, prec, flags); - } else if (radix_bits) { - /* XXX: may overflow */ - if (!is_bin_exp) - expn *= radix_bits; - a->expn = expn + (int_len * radix_bits); - a->sign = is_neg; - ret = bf_normalize_and_round(a, prec, flags); - } else { - limb_t l; - pos++; - l = a->len - pos; /* number of limbs */ - if (l == 0) { - bf_set_zero(r, is_neg); - ret = 0; - } else { - bf_t T_s, *T = &T_s; - - expn -= l * digits_per_limb - int_len; - bf_init(r->ctx, T); - if (bf_integer_from_radix(T, a->tab + pos, l, radix)) { - bf_set_nan(r); - ret = BF_ST_MEM_ERROR; - } else { - T->sign = is_neg; - if (flags & BF_ATOF_EXPONENT) { - /* return the exponent */ - *pexponent = expn; - ret = bf_set(r, T); - } else { - ret = bf_mul_pow_radix(r, T, radix, expn, prec, flags); - } - } - bf_delete(T); - } - bf_delete(a); - } - done: - if (pnext) - *pnext = p; - return ret; -} - -/* - Return (status, n, exp). 'status' is the floating point status. 'n' - is the parsed number. - - If (flags & BF_ATOF_EXPONENT) and if the radix is not a power of - two, the parsed number is equal to r * - (*pexponent)^radix. Otherwise *pexponent = 0. -*/ -int bf_atof2(bf_t *r, slimb_t *pexponent, - const char *str, const char **pnext, int radix, - limb_t prec, bf_flags_t flags) -{ - return bf_atof_internal(r, pexponent, str, pnext, radix, prec, flags, - FALSE); -} - -int bf_atof(bf_t *r, const char *str, const char **pnext, int radix, - limb_t prec, bf_flags_t flags) -{ - slimb_t dummy_exp; - return bf_atof_internal(r, &dummy_exp, str, pnext, radix, prec, flags, FALSE); -} - -/* base conversion to radix */ - -#if LIMB_BITS == 64 -#define RADIXL_10 UINT64_C(10000000000000000000) -#else -#define RADIXL_10 UINT64_C(1000000000) -#endif - -static const uint32_t inv_log2_radix[BF_RADIX_MAX - 1][LIMB_BITS / 32 + 1] = { -#if LIMB_BITS == 32 -{ 0x80000000, 0x00000000,}, -{ 0x50c24e60, 0xd4d4f4a7,}, -{ 0x40000000, 0x00000000,}, -{ 0x372068d2, 0x0a1ee5ca,}, -{ 0x3184648d, 0xb8153e7a,}, -{ 0x2d983275, 0x9d5369c4,}, -{ 0x2aaaaaaa, 0xaaaaaaab,}, -{ 0x28612730, 0x6a6a7a54,}, -{ 0x268826a1, 0x3ef3fde6,}, -{ 0x25001383, 0xbac8a744,}, -{ 0x23b46706, 0x82c0c709,}, -{ 0x229729f1, 0xb2c83ded,}, -{ 0x219e7ffd, 0xa5ad572b,}, -{ 0x20c33b88, 0xda7c29ab,}, -{ 0x20000000, 0x00000000,}, -{ 0x1f50b57e, 0xac5884b3,}, -{ 0x1eb22cc6, 0x8aa6e26f,}, -{ 0x1e21e118, 0x0c5daab2,}, -{ 0x1d9dcd21, 0x439834e4,}, -{ 0x1d244c78, 0x367a0d65,}, -{ 0x1cb40589, 0xac173e0c,}, -{ 0x1c4bd95b, 0xa8d72b0d,}, -{ 0x1bead768, 0x98f8ce4c,}, -{ 0x1b903469, 0x050f72e5,}, -{ 0x1b3b433f, 0x2eb06f15,}, -{ 0x1aeb6f75, 0x9c46fc38,}, -{ 0x1aa038eb, 0x0e3bfd17,}, -{ 0x1a593062, 0xb38d8c56,}, -{ 0x1a15f4c3, 0x2b95a2e6,}, -{ 0x19d630dc, 0xcc7ddef9,}, -{ 0x19999999, 0x9999999a,}, -{ 0x195fec80, 0x8a609431,}, -{ 0x1928ee7b, 0x0b4f22f9,}, -{ 0x18f46acf, 0x8c06e318,}, -{ 0x18c23246, 0xdc0a9f3d,}, -#else -{ 0x80000000, 0x00000000, 0x00000000,}, -{ 0x50c24e60, 0xd4d4f4a7, 0x021f57bc,}, -{ 0x40000000, 0x00000000, 0x00000000,}, -{ 0x372068d2, 0x0a1ee5ca, 0x19ea911b,}, -{ 0x3184648d, 0xb8153e7a, 0x7fc2d2e1,}, -{ 0x2d983275, 0x9d5369c4, 0x4dec1661,}, -{ 0x2aaaaaaa, 0xaaaaaaaa, 0xaaaaaaab,}, -{ 0x28612730, 0x6a6a7a53, 0x810fabde,}, -{ 0x268826a1, 0x3ef3fde6, 0x23e2566b,}, -{ 0x25001383, 0xbac8a744, 0x385a3349,}, -{ 0x23b46706, 0x82c0c709, 0x3f891718,}, -{ 0x229729f1, 0xb2c83ded, 0x15fba800,}, -{ 0x219e7ffd, 0xa5ad572a, 0xe169744b,}, -{ 0x20c33b88, 0xda7c29aa, 0x9bddee52,}, -{ 0x20000000, 0x00000000, 0x00000000,}, -{ 0x1f50b57e, 0xac5884b3, 0x70e28eee,}, -{ 0x1eb22cc6, 0x8aa6e26f, 0x06d1a2a2,}, -{ 0x1e21e118, 0x0c5daab1, 0x81b4f4bf,}, -{ 0x1d9dcd21, 0x439834e3, 0x81667575,}, -{ 0x1d244c78, 0x367a0d64, 0xc8204d6d,}, -{ 0x1cb40589, 0xac173e0c, 0x3b7b16ba,}, -{ 0x1c4bd95b, 0xa8d72b0d, 0x5879f25a,}, -{ 0x1bead768, 0x98f8ce4c, 0x66cc2858,}, -{ 0x1b903469, 0x050f72e5, 0x0cf5488e,}, -{ 0x1b3b433f, 0x2eb06f14, 0x8c89719c,}, -{ 0x1aeb6f75, 0x9c46fc37, 0xab5fc7e9,}, -{ 0x1aa038eb, 0x0e3bfd17, 0x1bd62080,}, -{ 0x1a593062, 0xb38d8c56, 0x7998ab45,}, -{ 0x1a15f4c3, 0x2b95a2e6, 0x46aed6a0,}, -{ 0x19d630dc, 0xcc7ddef9, 0x5aadd61b,}, -{ 0x19999999, 0x99999999, 0x9999999a,}, -{ 0x195fec80, 0x8a609430, 0xe1106014,}, -{ 0x1928ee7b, 0x0b4f22f9, 0x5f69791d,}, -{ 0x18f46acf, 0x8c06e318, 0x4d2aeb2c,}, -{ 0x18c23246, 0xdc0a9f3d, 0x3fe16970,}, -#endif -}; - -static const limb_t log2_radix[BF_RADIX_MAX - 1] = { -#if LIMB_BITS == 32 -0x20000000, -0x32b80347, -0x40000000, -0x4a4d3c26, -0x52b80347, -0x59d5d9fd, -0x60000000, -0x6570068e, -0x6a4d3c26, -0x6eb3a9f0, -0x72b80347, -0x766a008e, -0x79d5d9fd, -0x7d053f6d, -0x80000000, -0x82cc7edf, -0x8570068e, -0x87ef05ae, -0x8a4d3c26, -0x8c8ddd45, -0x8eb3a9f0, -0x90c10501, -0x92b80347, -0x949a784c, -0x966a008e, -0x982809d6, -0x99d5d9fd, -0x9b74948f, -0x9d053f6d, -0x9e88c6b3, -0xa0000000, -0xa16bad37, -0xa2cc7edf, -0xa4231623, -0xa570068e, -#else -0x2000000000000000, -0x32b803473f7ad0f4, -0x4000000000000000, -0x4a4d3c25e68dc57f, -0x52b803473f7ad0f4, -0x59d5d9fd5010b366, -0x6000000000000000, -0x6570068e7ef5a1e8, -0x6a4d3c25e68dc57f, -0x6eb3a9f01975077f, -0x72b803473f7ad0f4, -0x766a008e4788cbcd, -0x79d5d9fd5010b366, -0x7d053f6d26089673, -0x8000000000000000, -0x82cc7edf592262d0, -0x8570068e7ef5a1e8, -0x87ef05ae409a0289, -0x8a4d3c25e68dc57f, -0x8c8ddd448f8b845a, -0x8eb3a9f01975077f, -0x90c10500d63aa659, -0x92b803473f7ad0f4, -0x949a784bcd1b8afe, -0x966a008e4788cbcd, -0x982809d5be7072dc, -0x99d5d9fd5010b366, -0x9b74948f5532da4b, -0x9d053f6d26089673, -0x9e88c6b3626a72aa, -0xa000000000000000, -0xa16bad3758efd873, -0xa2cc7edf592262d0, -0xa4231623369e78e6, -0xa570068e7ef5a1e8, -#endif -}; - -/* compute floor(a*b) or ceil(a*b) with b = log2(radix) or - b=1/log2(radix). For is_inv = 0, strict accuracy is not guaranteed - when radix is not a power of two. */ -slimb_t bf_mul_log2_radix(slimb_t a1, unsigned int radix, int is_inv, - int is_ceil1) -{ - int is_neg; - limb_t a; - BOOL is_ceil; - - is_ceil = is_ceil1; - a = a1; - if (a1 < 0) { - a = -a; - is_neg = 1; - } else { - is_neg = 0; - } - is_ceil ^= is_neg; - if ((radix & (radix - 1)) == 0) { - int radix_bits; - /* radix is a power of two */ - radix_bits = ceil_log2(radix); - if (is_inv) { - if (is_ceil) - a += radix_bits - 1; - a = a / radix_bits; - } else { - a = a * radix_bits; - } - } else { - const uint32_t *tab; - limb_t b0, b1; - dlimb_t t; - - if (is_inv) { - tab = inv_log2_radix[radix - 2]; -#if LIMB_BITS == 32 - b1 = tab[0]; - b0 = tab[1]; -#else - b1 = ((limb_t)tab[0] << 32) | tab[1]; - b0 = (limb_t)tab[2] << 32; -#endif - t = (dlimb_t)b0 * (dlimb_t)a; - t = (dlimb_t)b1 * (dlimb_t)a + (t >> LIMB_BITS); - a = t >> (LIMB_BITS - 1); - } else { - b0 = log2_radix[radix - 2]; - t = (dlimb_t)b0 * (dlimb_t)a; - a = t >> (LIMB_BITS - 3); - } - /* a = floor(result) and 'result' cannot be an integer */ - a += is_ceil; - } - if (is_neg) - a = -a; - return a; -} - -/* 'n' is the number of output limbs */ -static int bf_integer_to_radix_rec(bf_t *pow_tab, - limb_t *out, const bf_t *a, limb_t n, - int level, limb_t n0, limb_t radixl, - unsigned int radixl_bits) -{ - limb_t n1, n2, q_prec; - int ret; - - assert(n >= 1); - if (n == 1) { - out[0] = get_bits(a->tab, a->len, a->len * LIMB_BITS - a->expn); - } else if (n == 2) { - dlimb_t t; - slimb_t pos; - pos = a->len * LIMB_BITS - a->expn; - t = ((dlimb_t)get_bits(a->tab, a->len, pos + LIMB_BITS) << LIMB_BITS) | - get_bits(a->tab, a->len, pos); - if (likely(radixl == RADIXL_10)) { - /* use division by a constant when possible */ - out[0] = t % RADIXL_10; - out[1] = t / RADIXL_10; - } else { - out[0] = t % radixl; - out[1] = t / radixl; - } - } else { - bf_t Q, R, *B, *B_inv; - int q_add; - bf_init(a->ctx, &Q); - bf_init(a->ctx, &R); - n2 = (((n0 * 2) >> (level + 1)) + 1) / 2; - n1 = n - n2; - B = &pow_tab[2 * level]; - B_inv = &pow_tab[2 * level + 1]; - ret = 0; - if (B->len == 0) { - /* compute BASE^n2 */ - ret |= bf_pow_ui_ui(B, radixl, n2, BF_PREC_INF, BF_RNDZ); - /* we use enough bits for the maximum possible 'n1' value, - i.e. n2 + 1 */ - ret |= bf_set_ui(&R, 1); - ret |= bf_div(B_inv, &R, B, (n2 + 1) * radixl_bits + 2, BF_RNDN); - } - // printf("%d: n1=% " PRId64 " n2=%" PRId64 "\n", level, n1, n2); - q_prec = n1 * radixl_bits; - ret |= bf_mul(&Q, a, B_inv, q_prec, BF_RNDN); - ret |= bf_rint(&Q, BF_RNDZ); - - ret |= bf_mul(&R, &Q, B, BF_PREC_INF, BF_RNDZ); - ret |= bf_sub(&R, a, &R, BF_PREC_INF, BF_RNDZ); - - if (ret & BF_ST_MEM_ERROR) - goto fail; - /* adjust if necessary */ - q_add = 0; - while (R.sign && R.len != 0) { - if (bf_add(&R, &R, B, BF_PREC_INF, BF_RNDZ)) - goto fail; - q_add--; - } - while (bf_cmpu(&R, B) >= 0) { - if (bf_sub(&R, &R, B, BF_PREC_INF, BF_RNDZ)) - goto fail; - q_add++; - } - if (q_add != 0) { - if (bf_add_si(&Q, &Q, q_add, BF_PREC_INF, BF_RNDZ)) - goto fail; - } - if (bf_integer_to_radix_rec(pow_tab, out + n2, &Q, n1, level + 1, n0, - radixl, radixl_bits)) - goto fail; - if (bf_integer_to_radix_rec(pow_tab, out, &R, n2, level + 1, n0, - radixl, radixl_bits)) { - fail: - bf_delete(&Q); - bf_delete(&R); - return -1; - } - bf_delete(&Q); - bf_delete(&R); - } - return 0; -} - -/* return 0 if OK != 0 if memory error */ -static int bf_integer_to_radix(bf_t *r, const bf_t *a, limb_t radixl) -{ - bf_context_t *s = r->ctx; - limb_t r_len; - bf_t *pow_tab; - int i, pow_tab_len, ret; - - r_len = r->len; - pow_tab_len = (ceil_log2(r_len) + 2) * 2; /* XXX: check */ - pow_tab = bf_malloc(s, sizeof(pow_tab[0]) * pow_tab_len); - if (!pow_tab) - return -1; - for(i = 0; i < pow_tab_len; i++) - bf_init(r->ctx, &pow_tab[i]); - - ret = bf_integer_to_radix_rec(pow_tab, r->tab, a, r_len, 0, r_len, radixl, - ceil_log2(radixl)); - - for(i = 0; i < pow_tab_len; i++) { - bf_delete(&pow_tab[i]); - } - bf_free(s, pow_tab); - return ret; -} - -/* a must be >= 0. 'P' is the wanted number of digits in radix - 'radix'. 'r' is the mantissa represented as an integer. *pE - contains the exponent. Return != 0 if memory error. */ -static int bf_convert_to_radix(bf_t *r, slimb_t *pE, - const bf_t *a, int radix, - limb_t P, bf_rnd_t rnd_mode, - BOOL is_fixed_exponent) -{ - slimb_t E, e, prec, extra_bits, ziv_extra_bits, prec0; - bf_t B_s, *B = &B_s; - int e_sign, ret, res; - - if (a->len == 0) { - /* zero case */ - *pE = 0; - return bf_set(r, a); - } - - if (is_fixed_exponent) { - E = *pE; - } else { - /* compute the new exponent */ - E = 1 + bf_mul_log2_radix(a->expn - 1, radix, TRUE, FALSE); - } - // bf_print_str("a", a); - // printf("E=%ld P=%ld radix=%d\n", E, P, radix); - - for(;;) { - e = P - E; - e_sign = 0; - if (e < 0) { - e = -e; - e_sign = 1; - } - /* Note: precision for log2(radix) is not critical here */ - prec0 = bf_mul_log2_radix(P, radix, FALSE, TRUE); - ziv_extra_bits = 16; - for(;;) { - prec = prec0 + ziv_extra_bits; - /* XXX: rigorous error analysis needed */ - extra_bits = ceil_log2(e) * 2 + 1; - ret = bf_pow_ui_ui(r, radix, e, prec + extra_bits, - BF_RNDN | BF_FLAG_EXT_EXP); - if (!e_sign) - ret |= bf_mul(r, r, a, prec + extra_bits, - BF_RNDN | BF_FLAG_EXT_EXP); - else - ret |= bf_div(r, a, r, prec + extra_bits, - BF_RNDN | BF_FLAG_EXT_EXP); - if (ret & BF_ST_MEM_ERROR) - return BF_ST_MEM_ERROR; - /* if the result is not exact, check that it can be safely - rounded to an integer */ - if ((ret & BF_ST_INEXACT) && - !bf_can_round(r, r->expn, rnd_mode, prec)) { - /* and more precision and retry */ - ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2); - continue; - } else { - ret = bf_rint(r, rnd_mode); - if (ret & BF_ST_MEM_ERROR) - return BF_ST_MEM_ERROR; - break; - } - } - if (is_fixed_exponent) - break; - /* check that the result is < B^P */ - /* XXX: do a fast approximate test first ? */ - bf_init(r->ctx, B); - ret = bf_pow_ui_ui(B, radix, P, BF_PREC_INF, BF_RNDZ); - if (ret) { - bf_delete(B); - return ret; - } - res = bf_cmpu(r, B); - bf_delete(B); - if (res < 0) - break; - /* try a larger exponent */ - E++; - } - *pE = E; - return 0; -} - -static void limb_to_a(char *buf, limb_t n, unsigned int radix, int len) -{ - int digit, i; - - if (radix == 10) { - /* specific case with constant divisor */ - for(i = len - 1; i >= 0; i--) { - digit = (limb_t)n % 10; - n = (limb_t)n / 10; - buf[i] = digit + '0'; - } - } else { - for(i = len - 1; i >= 0; i--) { - digit = (limb_t)n % radix; - n = (limb_t)n / radix; - if (digit < 10) - digit += '0'; - else - digit += 'a' - 10; - buf[i] = digit; - } - } -} - -/* for power of 2 radixes */ -static void limb_to_a2(char *buf, limb_t n, unsigned int radix_bits, int len) -{ - int digit, i; - unsigned int mask; - - mask = (1 << radix_bits) - 1; - for(i = len - 1; i >= 0; i--) { - digit = n & mask; - n >>= radix_bits; - if (digit < 10) - digit += '0'; - else - digit += 'a' - 10; - buf[i] = digit; - } -} - -/* 'a' must be an integer if the is_dec = FALSE or if the radix is not - a power of two. A dot is added before the 'dot_pos' digit. dot_pos - = n_digits does not display the dot. 0 <= dot_pos <= - n_digits. n_digits >= 1. */ -static void output_digits(DynBuf *s, const bf_t *a1, int radix, limb_t n_digits, - limb_t dot_pos, BOOL is_dec) -{ - limb_t i, v, l; - slimb_t pos, pos_incr; - int digits_per_limb, buf_pos, radix_bits, first_buf_pos; - char buf[65]; - bf_t a_s, *a; - - if (is_dec) { - digits_per_limb = LIMB_DIGITS; - a = (bf_t *)a1; - radix_bits = 0; - pos = a->len; - pos_incr = 1; - first_buf_pos = 0; - } else if ((radix & (radix - 1)) == 0) { - a = (bf_t *)a1; - radix_bits = ceil_log2(radix); - digits_per_limb = LIMB_BITS / radix_bits; - pos_incr = digits_per_limb * radix_bits; - /* digits are aligned relative to the radix point */ - pos = a->len * LIMB_BITS + smod(-a->expn, radix_bits); - first_buf_pos = 0; - } else { - limb_t n, radixl; - - digits_per_limb = digits_per_limb_table[radix - 2]; - radixl = get_limb_radix(radix); - a = &a_s; - bf_init(a1->ctx, a); - n = (n_digits + digits_per_limb - 1) / digits_per_limb; - if (bf_resize(a, n)) { - dbuf_set_error(s); - goto done; - } - if (bf_integer_to_radix(a, a1, radixl)) { - dbuf_set_error(s); - goto done; - } - radix_bits = 0; - pos = n; - pos_incr = 1; - first_buf_pos = pos * digits_per_limb - n_digits; - } - buf_pos = digits_per_limb; - i = 0; - while (i < n_digits) { - if (buf_pos == digits_per_limb) { - pos -= pos_incr; - if (radix_bits == 0) { - v = get_limbz(a, pos); - limb_to_a(buf, v, radix, digits_per_limb); - } else { - v = get_bits(a->tab, a->len, pos); - limb_to_a2(buf, v, radix_bits, digits_per_limb); - } - buf_pos = first_buf_pos; - first_buf_pos = 0; - } - if (i < dot_pos) { - l = dot_pos; - } else { - if (i == dot_pos) - dbuf_putc(s, '.'); - l = n_digits; - } - l = bf_min(digits_per_limb - buf_pos, l - i); - dbuf_put(s, (uint8_t *)(buf + buf_pos), l); - buf_pos += l; - i += l; - } - done: - if (a != a1) - bf_delete(a); -} - -static void *bf_dbuf_realloc(void *opaque, void *ptr, size_t size) -{ - bf_context_t *s = opaque; - return bf_realloc(s, ptr, size); -} - -/* return the length in bytes. A trailing '\0' is added */ -static char *bf_ftoa_internal(size_t *plen, const bf_t *a2, int radix, - limb_t prec, bf_flags_t flags, BOOL is_dec) -{ - bf_context_t *ctx = a2->ctx; - DynBuf s_s, *s = &s_s; - int radix_bits; - - // bf_print_str("ftoa", a2); - // printf("radix=%d\n", radix); - dbuf_init2(s, ctx, bf_dbuf_realloc); - if (a2->expn == BF_EXP_NAN) { - dbuf_putstr(s, "NaN"); - } else { - if (a2->sign) - dbuf_putc(s, '-'); - if (a2->expn == BF_EXP_INF) { - if (flags & BF_FTOA_JS_QUIRKS) - dbuf_putstr(s, "Infinity"); - else - dbuf_putstr(s, "Inf"); - } else { - int fmt, ret; - slimb_t n_digits, n, i, n_max, n1; - bf_t a1_s, *a1 = &a1_s; - - if ((radix & (radix - 1)) != 0) - radix_bits = 0; - else - radix_bits = ceil_log2(radix); - - fmt = flags & BF_FTOA_FORMAT_MASK; - bf_init(ctx, a1); - if (fmt == BF_FTOA_FORMAT_FRAC) { - if (is_dec || radix_bits != 0) { - if (bf_set(a1, a2)) - goto fail1; -#ifdef USE_BF_DEC - if (is_dec) { - if (bfdec_round((bfdec_t *)a1, prec, (flags & BF_RND_MASK) | BF_FLAG_RADPNT_PREC) & BF_ST_MEM_ERROR) - goto fail1; - n = a1->expn; - } else -#endif - { - if (bf_round(a1, prec * radix_bits, (flags & BF_RND_MASK) | BF_FLAG_RADPNT_PREC) & BF_ST_MEM_ERROR) - goto fail1; - n = ceil_div(a1->expn, radix_bits); - } - if (flags & BF_FTOA_ADD_PREFIX) { - if (radix == 16) - dbuf_putstr(s, "0x"); - else if (radix == 8) - dbuf_putstr(s, "0o"); - else if (radix == 2) - dbuf_putstr(s, "0b"); - } - if (a1->expn == BF_EXP_ZERO) { - dbuf_putstr(s, "0"); - if (prec > 0) { - dbuf_putstr(s, "."); - for(i = 0; i < prec; i++) { - dbuf_putc(s, '0'); - } - } - } else { - n_digits = prec + n; - if (n <= 0) { - /* 0.x */ - dbuf_putstr(s, "0."); - for(i = 0; i < -n; i++) { - dbuf_putc(s, '0'); - } - if (n_digits > 0) { - output_digits(s, a1, radix, n_digits, n_digits, is_dec); - } - } else { - output_digits(s, a1, radix, n_digits, n, is_dec); - } - } - } else { - size_t pos, start; - bf_t a_s, *a = &a_s; - - /* make a positive number */ - a->tab = a2->tab; - a->len = a2->len; - a->expn = a2->expn; - a->sign = 0; - - /* one more digit for the rounding */ - n = 1 + bf_mul_log2_radix(bf_max(a->expn, 0), radix, TRUE, TRUE); - n_digits = n + prec; - n1 = n; - if (bf_convert_to_radix(a1, &n1, a, radix, n_digits, - flags & BF_RND_MASK, TRUE)) - goto fail1; - start = s->size; - output_digits(s, a1, radix, n_digits, n, is_dec); - /* remove leading zeros because we allocated one more digit */ - pos = start; - while ((pos + 1) < s->size && s->buf[pos] == '0' && - s->buf[pos + 1] != '.') - pos++; - if (pos > start) { - memmove(s->buf + start, s->buf + pos, s->size - pos); - s->size -= (pos - start); - } - } - } else { -#ifdef USE_BF_DEC - if (is_dec) { - if (bf_set(a1, a2)) - goto fail1; - if (fmt == BF_FTOA_FORMAT_FIXED) { - n_digits = prec; - n_max = n_digits; - if (bfdec_round((bfdec_t *)a1, prec, (flags & BF_RND_MASK)) & BF_ST_MEM_ERROR) - goto fail1; - } else { - /* prec is ignored */ - prec = n_digits = a1->len * LIMB_DIGITS; - /* remove the trailing zero digits */ - while (n_digits > 1 && - get_digit(a1->tab, a1->len, prec - n_digits) == 0) { - n_digits--; - } - n_max = n_digits + 4; - } - n = a1->expn; - } else -#endif - if (radix_bits != 0) { - if (bf_set(a1, a2)) - goto fail1; - if (fmt == BF_FTOA_FORMAT_FIXED) { - slimb_t prec_bits; - n_digits = prec; - n_max = n_digits; - /* align to the radix point */ - prec_bits = prec * radix_bits - - smod(-a1->expn, radix_bits); - if (bf_round(a1, prec_bits, - (flags & BF_RND_MASK)) & BF_ST_MEM_ERROR) - goto fail1; - } else { - limb_t digit_mask; - slimb_t pos; - /* position of the digit before the most - significant digit in bits */ - pos = a1->len * LIMB_BITS + - smod(-a1->expn, radix_bits); - n_digits = ceil_div(pos, radix_bits); - /* remove the trailing zero digits */ - digit_mask = ((limb_t)1 << radix_bits) - 1; - while (n_digits > 1 && - (get_bits(a1->tab, a1->len, pos - n_digits * radix_bits) & digit_mask) == 0) { - n_digits--; - } - n_max = n_digits + 4; - } - n = ceil_div(a1->expn, radix_bits); - } else { - bf_t a_s, *a = &a_s; - - /* make a positive number */ - a->tab = a2->tab; - a->len = a2->len; - a->expn = a2->expn; - a->sign = 0; - - if (fmt == BF_FTOA_FORMAT_FIXED) { - n_digits = prec; - n_max = n_digits; - } else { - slimb_t n_digits_max, n_digits_min; - - assert(prec != BF_PREC_INF); - n_digits = 1 + bf_mul_log2_radix(prec, radix, TRUE, TRUE); - /* max number of digits for non exponential - notation. The rational is to have the same rule - as JS i.e. n_max = 21 for 64 bit float in base 10. */ - n_max = n_digits + 4; - if (fmt == BF_FTOA_FORMAT_FREE_MIN) { - bf_t b_s, *b = &b_s; - - /* find the minimum number of digits by - dichotomy. */ - /* XXX: inefficient */ - n_digits_max = n_digits; - n_digits_min = 1; - bf_init(ctx, b); - while (n_digits_min < n_digits_max) { - n_digits = (n_digits_min + n_digits_max) / 2; - if (bf_convert_to_radix(a1, &n, a, radix, n_digits, - flags & BF_RND_MASK, FALSE)) { - bf_delete(b); - goto fail1; - } - /* convert back to a number and compare */ - ret = bf_mul_pow_radix(b, a1, radix, n - n_digits, - prec, - (flags & ~BF_RND_MASK) | - BF_RNDN); - if (ret & BF_ST_MEM_ERROR) { - bf_delete(b); - goto fail1; - } - if (bf_cmpu(b, a) == 0) { - n_digits_max = n_digits; - } else { - n_digits_min = n_digits + 1; - } - } - bf_delete(b); - n_digits = n_digits_max; - } - } - if (bf_convert_to_radix(a1, &n, a, radix, n_digits, - flags & BF_RND_MASK, FALSE)) { - fail1: - bf_delete(a1); - goto fail; - } - } - if (a1->expn == BF_EXP_ZERO && - fmt != BF_FTOA_FORMAT_FIXED && - !(flags & BF_FTOA_FORCE_EXP)) { - /* just output zero */ - dbuf_putstr(s, "0"); - } else { - if (flags & BF_FTOA_ADD_PREFIX) { - if (radix == 16) - dbuf_putstr(s, "0x"); - else if (radix == 8) - dbuf_putstr(s, "0o"); - else if (radix == 2) - dbuf_putstr(s, "0b"); - } - if (a1->expn == BF_EXP_ZERO) - n = 1; - if ((flags & BF_FTOA_FORCE_EXP) || - n <= -6 || n > n_max) { - const char *fmt; - /* exponential notation */ - output_digits(s, a1, radix, n_digits, 1, is_dec); - if (radix_bits != 0 && radix <= 16) { - if (flags & BF_FTOA_JS_QUIRKS) - fmt = "p%+" PRId_LIMB; - else - fmt = "p%" PRId_LIMB; - dbuf_printf(s, fmt, (n - 1) * radix_bits); - } else { - if (flags & BF_FTOA_JS_QUIRKS) - fmt = "%c%+" PRId_LIMB; - else - fmt = "%c%" PRId_LIMB; - dbuf_printf(s, fmt, - radix <= 10 ? 'e' : '@', n - 1); - } - } else if (n <= 0) { - /* 0.x */ - dbuf_putstr(s, "0."); - for(i = 0; i < -n; i++) { - dbuf_putc(s, '0'); - } - output_digits(s, a1, radix, n_digits, n_digits, is_dec); - } else { - if (n_digits <= n) { - /* no dot */ - output_digits(s, a1, radix, n_digits, n_digits, is_dec); - for(i = 0; i < (n - n_digits); i++) - dbuf_putc(s, '0'); - } else { - output_digits(s, a1, radix, n_digits, n, is_dec); - } - } - } - } - bf_delete(a1); - } - } - dbuf_putc(s, '\0'); - if (dbuf_error(s)) - goto fail; - if (plen) - *plen = s->size - 1; - return (char *)s->buf; - fail: - bf_free(ctx, s->buf); - if (plen) - *plen = 0; - return NULL; -} - -char *bf_ftoa(size_t *plen, const bf_t *a, int radix, limb_t prec, - bf_flags_t flags) -{ - return bf_ftoa_internal(plen, a, radix, prec, flags, FALSE); -} - -/***************************************************************/ -/* transcendental functions */ - -/* Note: the algorithm is from MPFR */ -static void bf_const_log2_rec(bf_t *T, bf_t *P, bf_t *Q, limb_t n1, - limb_t n2, BOOL need_P) -{ - bf_context_t *s = T->ctx; - if ((n2 - n1) == 1) { - if (n1 == 0) { - bf_set_ui(P, 3); - } else { - bf_set_ui(P, n1); - P->sign = 1; - } - bf_set_ui(Q, 2 * n1 + 1); - Q->expn += 2; - bf_set(T, P); - } else { - limb_t m; - bf_t T1_s, *T1 = &T1_s; - bf_t P1_s, *P1 = &P1_s; - bf_t Q1_s, *Q1 = &Q1_s; - - m = n1 + ((n2 - n1) >> 1); - bf_const_log2_rec(T, P, Q, n1, m, TRUE); - bf_init(s, T1); - bf_init(s, P1); - bf_init(s, Q1); - bf_const_log2_rec(T1, P1, Q1, m, n2, need_P); - bf_mul(T, T, Q1, BF_PREC_INF, BF_RNDZ); - bf_mul(T1, T1, P, BF_PREC_INF, BF_RNDZ); - bf_add(T, T, T1, BF_PREC_INF, BF_RNDZ); - if (need_P) - bf_mul(P, P, P1, BF_PREC_INF, BF_RNDZ); - bf_mul(Q, Q, Q1, BF_PREC_INF, BF_RNDZ); - bf_delete(T1); - bf_delete(P1); - bf_delete(Q1); - } -} - -/* compute log(2) with faithful rounding at precision 'prec' */ -static void bf_const_log2_internal(bf_t *T, limb_t prec) -{ - limb_t w, N; - bf_t P_s, *P = &P_s; - bf_t Q_s, *Q = &Q_s; - - w = prec + 15; - N = w / 3 + 1; - bf_init(T->ctx, P); - bf_init(T->ctx, Q); - bf_const_log2_rec(T, P, Q, 0, N, FALSE); - bf_div(T, T, Q, prec, BF_RNDN); - bf_delete(P); - bf_delete(Q); -} - -/* PI constant */ - -#define CHUD_A 13591409 -#define CHUD_B 545140134 -#define CHUD_C 640320 -#define CHUD_BITS_PER_TERM 47 - -static void chud_bs(bf_t *P, bf_t *Q, bf_t *G, int64_t a, int64_t b, int need_g, - limb_t prec) -{ - bf_context_t *s = P->ctx; - int64_t c; - - if (a == (b - 1)) { - bf_t T0, T1; - - bf_init(s, &T0); - bf_init(s, &T1); - bf_set_ui(G, 2 * b - 1); - bf_mul_ui(G, G, 6 * b - 1, prec, BF_RNDN); - bf_mul_ui(G, G, 6 * b - 5, prec, BF_RNDN); - bf_set_ui(&T0, CHUD_B); - bf_mul_ui(&T0, &T0, b, prec, BF_RNDN); - bf_set_ui(&T1, CHUD_A); - bf_add(&T0, &T0, &T1, prec, BF_RNDN); - bf_mul(P, G, &T0, prec, BF_RNDN); - P->sign = b & 1; - - bf_set_ui(Q, b); - bf_mul_ui(Q, Q, b, prec, BF_RNDN); - bf_mul_ui(Q, Q, b, prec, BF_RNDN); - bf_mul_ui(Q, Q, (uint64_t)CHUD_C * CHUD_C * CHUD_C / 24, prec, BF_RNDN); - bf_delete(&T0); - bf_delete(&T1); - } else { - bf_t P2, Q2, G2; - - bf_init(s, &P2); - bf_init(s, &Q2); - bf_init(s, &G2); - - c = (a + b) / 2; - chud_bs(P, Q, G, a, c, 1, prec); - chud_bs(&P2, &Q2, &G2, c, b, need_g, prec); - - /* Q = Q1 * Q2 */ - /* G = G1 * G2 */ - /* P = P1 * Q2 + P2 * G1 */ - bf_mul(&P2, &P2, G, prec, BF_RNDN); - if (!need_g) - bf_set_ui(G, 0); - bf_mul(P, P, &Q2, prec, BF_RNDN); - bf_add(P, P, &P2, prec, BF_RNDN); - bf_delete(&P2); - - bf_mul(Q, Q, &Q2, prec, BF_RNDN); - bf_delete(&Q2); - if (need_g) - bf_mul(G, G, &G2, prec, BF_RNDN); - bf_delete(&G2); - } -} - -/* compute Pi with faithful rounding at precision 'prec' using the - Chudnovsky formula */ -static void bf_const_pi_internal(bf_t *Q, limb_t prec) -{ - bf_context_t *s = Q->ctx; - int64_t n, prec1; - bf_t P, G; - - /* number of serie terms */ - n = prec / CHUD_BITS_PER_TERM + 1; - /* XXX: precision analysis */ - prec1 = prec + 32; - - bf_init(s, &P); - bf_init(s, &G); - - chud_bs(&P, Q, &G, 0, n, 0, BF_PREC_INF); - - bf_mul_ui(&G, Q, CHUD_A, prec1, BF_RNDN); - bf_add(&P, &G, &P, prec1, BF_RNDN); - bf_div(Q, Q, &P, prec1, BF_RNDF); - - bf_set_ui(&P, CHUD_C); - bf_sqrt(&G, &P, prec1, BF_RNDF); - bf_mul_ui(&G, &G, (uint64_t)CHUD_C / 12, prec1, BF_RNDF); - bf_mul(Q, Q, &G, prec, BF_RNDN); - bf_delete(&P); - bf_delete(&G); -} - -static int bf_const_get(bf_t *T, limb_t prec, bf_flags_t flags, - BFConstCache *c, - void (*func)(bf_t *res, limb_t prec), int sign) -{ - limb_t ziv_extra_bits, prec1; - - ziv_extra_bits = 32; - for(;;) { - prec1 = prec + ziv_extra_bits; - if (c->prec < prec1) { - if (c->val.len == 0) - bf_init(T->ctx, &c->val); - func(&c->val, prec1); - c->prec = prec1; - } else { - prec1 = c->prec; - } - bf_set(T, &c->val); - T->sign = sign; - if (!bf_can_round(T, prec, flags & BF_RND_MASK, prec1)) { - /* and more precision and retry */ - ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2); - } else { - break; - } - } - return bf_round(T, prec, flags); -} - -static void bf_const_free(BFConstCache *c) -{ - bf_delete(&c->val); - memset(c, 0, sizeof(*c)); -} - -int bf_const_log2(bf_t *T, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = T->ctx; - return bf_const_get(T, prec, flags, &s->log2_cache, bf_const_log2_internal, 0); -} - -/* return rounded pi * (1 - 2 * sign) */ -static int bf_const_pi_signed(bf_t *T, int sign, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = T->ctx; - return bf_const_get(T, prec, flags, &s->pi_cache, bf_const_pi_internal, - sign); -} - -int bf_const_pi(bf_t *T, limb_t prec, bf_flags_t flags) -{ - return bf_const_pi_signed(T, 0, prec, flags); -} - -void bf_clear_cache(bf_context_t *s) -{ -#ifdef USE_FFT_MUL - fft_clear_cache(s); -#endif - bf_const_free(&s->log2_cache); - bf_const_free(&s->pi_cache); -} - -/* ZivFunc should compute the result 'r' with faithful rounding at - precision 'prec'. For efficiency purposes, the final bf_round() - does not need to be done in the function. */ -typedef int ZivFunc(bf_t *r, const bf_t *a, limb_t prec, void *opaque); - -static int bf_ziv_rounding(bf_t *r, const bf_t *a, - limb_t prec, bf_flags_t flags, - ZivFunc *f, void *opaque) -{ - int rnd_mode, ret; - slimb_t prec1, ziv_extra_bits; - - rnd_mode = flags & BF_RND_MASK; - if (rnd_mode == BF_RNDF) { - /* no need to iterate */ - f(r, a, prec, opaque); - ret = 0; - } else { - ziv_extra_bits = 32; - for(;;) { - prec1 = prec + ziv_extra_bits; - ret = f(r, a, prec1, opaque); - if (ret & (BF_ST_OVERFLOW | BF_ST_UNDERFLOW | BF_ST_MEM_ERROR)) { - /* overflow or underflow should never happen because - it indicates the rounding cannot be done correctly, - but we do not catch all the cases */ - return ret; - } - /* if the result is exact, we can stop */ - if (!(ret & BF_ST_INEXACT)) { - ret = 0; - break; - } - if (bf_can_round(r, prec, rnd_mode, prec1)) { - ret = BF_ST_INEXACT; - break; - } - ziv_extra_bits = ziv_extra_bits * 2; - // printf("ziv_extra_bits=%" PRId64 "\n", (int64_t)ziv_extra_bits); - } - } - if (r->len == 0) - return ret; - else - return __bf_round(r, prec, flags, r->len, ret); -} - -/* add (1 - 2*e_sign) * 2^e */ -static int bf_add_epsilon(bf_t *r, const bf_t *a, slimb_t e, int e_sign, - limb_t prec, int flags) -{ - bf_t T_s, *T = &T_s; - int ret; - /* small argument case: result = 1 + epsilon * sign(x) */ - bf_init(a->ctx, T); - bf_set_ui(T, 1); - T->sign = e_sign; - T->expn += e; - ret = bf_add(r, r, T, prec, flags); - bf_delete(T); - return ret; -} - -/* Compute the exponential using faithful rounding at precision 'prec'. - Note: the algorithm is from MPFR */ -static int bf_exp_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - slimb_t n, K, l, i, prec1; - - assert(r != a); - - /* argument reduction: - T = a - n*log(2) with 0 <= T < log(2) and n integer. - */ - bf_init(s, T); - if (a->expn <= -1) { - /* 0 <= abs(a) <= 0.5 */ - if (a->sign) - n = -1; - else - n = 0; - } else { - bf_const_log2(T, LIMB_BITS, BF_RNDZ); - bf_div(T, a, T, LIMB_BITS, BF_RNDD); - bf_get_limb(&n, T, 0); - } - - K = bf_isqrt((prec + 1) / 2); - l = (prec - 1) / K + 1; - /* XXX: precision analysis ? */ - prec1 = prec + (K + 2 * l + 18) + K + 8; - if (a->expn > 0) - prec1 += a->expn; - // printf("n=%ld K=%ld prec1=%ld\n", n, K, prec1); - - bf_const_log2(T, prec1, BF_RNDF); - bf_mul_si(T, T, n, prec1, BF_RNDN); - bf_sub(T, a, T, prec1, BF_RNDN); - - /* reduce the range of T */ - bf_mul_2exp(T, -K, BF_PREC_INF, BF_RNDZ); - - /* Taylor expansion around zero : - 1 + x + x^2/2 + ... + x^n/n! - = (1 + x * (1 + x/2 * (1 + ... (x/n)))) - */ - { - bf_t U_s, *U = &U_s; - - bf_init(s, U); - bf_set_ui(r, 1); - for(i = l ; i >= 1; i--) { - bf_set_ui(U, i); - bf_div(U, T, U, prec1, BF_RNDN); - bf_mul(r, r, U, prec1, BF_RNDN); - bf_add_si(r, r, 1, prec1, BF_RNDN); - } - bf_delete(U); - } - bf_delete(T); - - /* undo the range reduction */ - for(i = 0; i < K; i++) { - bf_mul(r, r, r, prec1, BF_RNDN | BF_FLAG_EXT_EXP); - } - - /* undo the argument reduction */ - bf_mul_2exp(r, n, BF_PREC_INF, BF_RNDZ | BF_FLAG_EXT_EXP); - - return BF_ST_INEXACT; -} - -/* crude overflow and underflow tests for exp(a). a_low <= a <= a_high */ -static int check_exp_underflow_overflow(bf_context_t *s, bf_t *r, - const bf_t *a_low, const bf_t *a_high, - limb_t prec, bf_flags_t flags) -{ - bf_t T_s, *T = &T_s; - bf_t log2_s, *log2 = &log2_s; - slimb_t e_min, e_max; - - if (a_high->expn <= 0) - return 0; - - e_max = (limb_t)1 << (bf_get_exp_bits(flags) - 1); - e_min = -e_max + 3; - if (flags & BF_FLAG_SUBNORMAL) - e_min -= (prec - 1); - - bf_init(s, T); - bf_init(s, log2); - bf_const_log2(log2, LIMB_BITS, BF_RNDU); - bf_mul_ui(T, log2, e_max, LIMB_BITS, BF_RNDU); - /* a_low > e_max * log(2) implies exp(a) > e_max */ - if (bf_cmp_lt(T, a_low) > 0) { - /* overflow */ - bf_delete(T); - bf_delete(log2); - return bf_set_overflow(r, 0, prec, flags); - } - /* a_high < (e_min - 2) * log(2) implies exp(a) < (e_min - 2) */ - bf_const_log2(log2, LIMB_BITS, BF_RNDD); - bf_mul_si(T, log2, e_min - 2, LIMB_BITS, BF_RNDD); - if (bf_cmp_lt(a_high, T)) { - int rnd_mode = flags & BF_RND_MASK; - - /* underflow */ - bf_delete(T); - bf_delete(log2); - if (rnd_mode == BF_RNDU) { - /* set the smallest value */ - bf_set_ui(r, 1); - r->expn = e_min; - } else { - bf_set_zero(r, 0); - } - return BF_ST_UNDERFLOW | BF_ST_INEXACT; - } - bf_delete(log2); - bf_delete(T); - return 0; -} - -int bf_exp(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - int ret; - assert(r != a); - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - } else if (a->expn == BF_EXP_INF) { - if (a->sign) - bf_set_zero(r, 0); - else - bf_set_inf(r, 0); - } else { - bf_set_ui(r, 1); - } - return 0; - } - - ret = check_exp_underflow_overflow(s, r, a, a, prec, flags); - if (ret) - return ret; - if (a->expn < 0 && (-a->expn) >= (prec + 2)) { - /* small argument case: result = 1 + epsilon * sign(x) */ - bf_set_ui(r, 1); - return bf_add_epsilon(r, r, -(prec + 2), a->sign, prec, flags); - } - - return bf_ziv_rounding(r, a, prec, flags, bf_exp_internal, NULL); -} - -static int bf_log_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - bf_t U_s, *U = &U_s; - bf_t V_s, *V = &V_s; - slimb_t n, prec1, l, i, K; - - assert(r != a); - - bf_init(s, T); - /* argument reduction 1 */ - /* T=a*2^n with 2/3 <= T <= 4/3 */ - { - bf_t U_s, *U = &U_s; - bf_set(T, a); - n = T->expn; - T->expn = 0; - /* U= ~ 2/3 */ - bf_init(s, U); - bf_set_ui(U, 0xaaaaaaaa); - U->expn = 0; - if (bf_cmp_lt(T, U)) { - T->expn++; - n--; - } - bf_delete(U); - } - // printf("n=%ld\n", n); - // bf_print_str("T", T); - - /* XXX: precision analysis */ - /* number of iterations for argument reduction 2 */ - K = bf_isqrt((prec + 1) / 2); - /* order of Taylor expansion */ - l = prec / (2 * K) + 1; - /* precision of the intermediate computations */ - prec1 = prec + K + 2 * l + 32; - - bf_init(s, U); - bf_init(s, V); - - /* Note: cancellation occurs here, so we use more precision (XXX: - reduce the precision by computing the exact cancellation) */ - bf_add_si(T, T, -1, BF_PREC_INF, BF_RNDN); - - /* argument reduction 2 */ - for(i = 0; i < K; i++) { - /* T = T / (1 + sqrt(1 + T)) */ - bf_add_si(U, T, 1, prec1, BF_RNDN); - bf_sqrt(V, U, prec1, BF_RNDF); - bf_add_si(U, V, 1, prec1, BF_RNDN); - bf_div(T, T, U, prec1, BF_RNDN); - } - - { - bf_t Y_s, *Y = &Y_s; - bf_t Y2_s, *Y2 = &Y2_s; - bf_init(s, Y); - bf_init(s, Y2); - - /* compute ln(1+x) = ln((1+y)/(1-y)) with y=x/(2+x) - = y + y^3/3 + ... + y^(2*l + 1) / (2*l+1) - with Y=Y^2 - = y*(1+Y/3+Y^2/5+...) = y*(1+Y*(1/3+Y*(1/5 + ...))) - */ - bf_add_si(Y, T, 2, prec1, BF_RNDN); - bf_div(Y, T, Y, prec1, BF_RNDN); - - bf_mul(Y2, Y, Y, prec1, BF_RNDN); - bf_set_ui(r, 0); - for(i = l; i >= 1; i--) { - bf_set_ui(U, 1); - bf_set_ui(V, 2 * i + 1); - bf_div(U, U, V, prec1, BF_RNDN); - bf_add(r, r, U, prec1, BF_RNDN); - bf_mul(r, r, Y2, prec1, BF_RNDN); - } - bf_add_si(r, r, 1, prec1, BF_RNDN); - bf_mul(r, r, Y, prec1, BF_RNDN); - bf_delete(Y); - bf_delete(Y2); - } - bf_delete(V); - bf_delete(U); - - /* multiplication by 2 for the Taylor expansion and undo the - argument reduction 2*/ - bf_mul_2exp(r, K + 1, BF_PREC_INF, BF_RNDZ); - - /* undo the argument reduction 1 */ - bf_const_log2(T, prec1, BF_RNDF); - bf_mul_si(T, T, n, prec1, BF_RNDN); - bf_add(r, r, T, prec1, BF_RNDN); - - bf_delete(T); - return BF_ST_INEXACT; -} - -int bf_log(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - - assert(r != a); - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - if (a->sign) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set_inf(r, 0); - return 0; - } - } else { - bf_set_inf(r, 1); - return 0; - } - } - if (a->sign) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } - bf_init(s, T); - bf_set_ui(T, 1); - if (bf_cmp_eq(a, T)) { - bf_set_zero(r, 0); - bf_delete(T); - return 0; - } - bf_delete(T); - - return bf_ziv_rounding(r, a, prec, flags, bf_log_internal, NULL); -} - -/* x and y finite and x > 0 */ -static int bf_pow_generic(bf_t *r, const bf_t *x, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - const bf_t *y = opaque; - bf_t T_s, *T = &T_s; - limb_t prec1; - - bf_init(s, T); - /* XXX: proof for the added precision */ - prec1 = prec + 32; - bf_log(T, x, prec1, BF_RNDF | BF_FLAG_EXT_EXP); - bf_mul(T, T, y, prec1, BF_RNDF | BF_FLAG_EXT_EXP); - if (bf_is_nan(T)) - bf_set_nan(r); - else - bf_exp_internal(r, T, prec1, NULL); /* no overflow/underlow test needed */ - bf_delete(T); - return BF_ST_INEXACT; -} - -/* x and y finite, x > 0, y integer and y fits on one limb */ -static int bf_pow_int(bf_t *r, const bf_t *x, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - const bf_t *y = opaque; - bf_t T_s, *T = &T_s; - limb_t prec1; - int ret; - slimb_t y1; - - bf_get_limb(&y1, y, 0); - if (y1 < 0) - y1 = -y1; - /* XXX: proof for the added precision */ - prec1 = prec + ceil_log2(y1) * 2 + 8; - ret = bf_pow_ui(r, x, y1 < 0 ? -y1 : y1, prec1, BF_RNDN | BF_FLAG_EXT_EXP); - if (y->sign) { - bf_init(s, T); - bf_set_ui(T, 1); - ret |= bf_div(r, T, r, prec1, BF_RNDN | BF_FLAG_EXT_EXP); - bf_delete(T); - } - return ret; -} - -/* x must be a finite non zero float. Return TRUE if there is a - floating point number r such as x=r^(2^n) and return this floating - point number 'r'. Otherwise return FALSE and r is undefined. */ -static BOOL check_exact_power2n(bf_t *r, const bf_t *x, slimb_t n) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - slimb_t e, i, er; - limb_t v; - - /* x = m*2^e with m odd integer */ - e = bf_get_exp_min(x); - /* fast check on the exponent */ - if (n > (LIMB_BITS - 1)) { - if (e != 0) - return FALSE; - er = 0; - } else { - if ((e & (((limb_t)1 << n) - 1)) != 0) - return FALSE; - er = e >> n; - } - /* every perfect odd square = 1 modulo 8 */ - v = get_bits(x->tab, x->len, x->len * LIMB_BITS - x->expn + e); - if ((v & 7) != 1) - return FALSE; - - bf_init(s, T); - bf_set(T, x); - T->expn -= e; - for(i = 0; i < n; i++) { - if (i != 0) - bf_set(T, r); - if (bf_sqrtrem(r, NULL, T) != 0) - return FALSE; - } - r->expn += er; - return TRUE; -} - -/* prec = BF_PREC_INF is accepted for x and y integers and y >= 0 */ -int bf_pow(bf_t *r, const bf_t *x, const bf_t *y, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - bf_t ytmp_s; - BOOL y_is_int, y_is_odd; - int r_sign, ret, rnd_mode; - slimb_t y_emin; - - if (x->len == 0 || y->len == 0) { - if (y->expn == BF_EXP_ZERO) { - /* pow(x, 0) = 1 */ - bf_set_ui(r, 1); - } else if (x->expn == BF_EXP_NAN) { - bf_set_nan(r); - } else { - int cmp_x_abs_1; - bf_set_ui(r, 1); - cmp_x_abs_1 = bf_cmpu(x, r); - if (cmp_x_abs_1 == 0 && (flags & BF_POW_JS_QUIRKS) && - (y->expn >= BF_EXP_INF)) { - bf_set_nan(r); - } else if (cmp_x_abs_1 == 0 && - (!x->sign || y->expn != BF_EXP_NAN)) { - /* pow(1, y) = 1 even if y = NaN */ - /* pow(-1, +/-inf) = 1 */ - } else if (y->expn == BF_EXP_NAN) { - bf_set_nan(r); - } else if (y->expn == BF_EXP_INF) { - if (y->sign == (cmp_x_abs_1 > 0)) { - bf_set_zero(r, 0); - } else { - bf_set_inf(r, 0); - } - } else { - y_emin = bf_get_exp_min(y); - y_is_odd = (y_emin == 0); - if (y->sign == (x->expn == BF_EXP_ZERO)) { - bf_set_inf(r, y_is_odd & x->sign); - if (y->sign) { - /* pow(0, y) with y < 0 */ - return BF_ST_DIVIDE_ZERO; - } - } else { - bf_set_zero(r, y_is_odd & x->sign); - } - } - } - return 0; - } - bf_init(s, T); - bf_set(T, x); - y_emin = bf_get_exp_min(y); - y_is_int = (y_emin >= 0); - rnd_mode = flags & BF_RND_MASK; - if (x->sign) { - if (!y_is_int) { - bf_set_nan(r); - bf_delete(T); - return BF_ST_INVALID_OP; - } - y_is_odd = (y_emin == 0); - r_sign = y_is_odd; - /* change the directed rounding mode if the sign of the result - is changed */ - if (r_sign && (rnd_mode == BF_RNDD || rnd_mode == BF_RNDU)) - flags ^= 1; - bf_neg(T); - } else { - r_sign = 0; - } - - bf_set_ui(r, 1); - if (bf_cmp_eq(T, r)) { - /* abs(x) = 1: nothing more to do */ - ret = 0; - } else { - /* check the overflow/underflow cases */ - { - bf_t al_s, *al = &al_s; - bf_t ah_s, *ah = &ah_s; - limb_t precl = LIMB_BITS; - - bf_init(s, al); - bf_init(s, ah); - /* compute bounds of log(abs(x)) * y with a low precision */ - /* XXX: compute bf_log() once */ - /* XXX: add a fast test before this slow test */ - bf_log(al, T, precl, BF_RNDD); - bf_log(ah, T, precl, BF_RNDU); - bf_mul(al, al, y, precl, BF_RNDD ^ y->sign); - bf_mul(ah, ah, y, precl, BF_RNDU ^ y->sign); - ret = check_exp_underflow_overflow(s, r, al, ah, prec, flags); - bf_delete(al); - bf_delete(ah); - if (ret) - goto done; - } - - if (y_is_int) { - slimb_t T_bits, e; - int_pow: - T_bits = T->expn - bf_get_exp_min(T); - if (T_bits == 1) { - /* pow(2^b, y) = 2^(b*y) */ - bf_mul_si(T, y, T->expn - 1, LIMB_BITS, BF_RNDZ); - bf_get_limb(&e, T, 0); - bf_set_ui(r, 1); - ret = bf_mul_2exp(r, e, prec, flags); - } else if (prec == BF_PREC_INF) { - slimb_t y1; - /* specific case for infinite precision (integer case) */ - bf_get_limb(&y1, y, 0); - assert(!y->sign); - /* x must be an integer, so abs(x) >= 2 */ - if (y1 >= ((slimb_t)1 << BF_EXP_BITS_MAX)) { - bf_delete(T); - return bf_set_overflow(r, 0, BF_PREC_INF, flags); - } - ret = bf_pow_ui(r, T, y1, BF_PREC_INF, BF_RNDZ); - } else { - if (y->expn <= 31) { - /* small enough power: use exponentiation in all cases */ - } else if (y->sign) { - /* cannot be exact */ - goto general_case; - } else { - if (rnd_mode == BF_RNDF) - goto general_case; /* no need to track exact results */ - /* see if the result has a chance to be exact: - if x=a*2^b (a odd), x^y=a^y*2^(b*y) - x^y needs a precision of at least floor_log2(a)*y bits - */ - bf_mul_si(r, y, T_bits - 1, LIMB_BITS, BF_RNDZ); - bf_get_limb(&e, r, 0); - if (prec < e) - goto general_case; - } - ret = bf_ziv_rounding(r, T, prec, flags, bf_pow_int, (void *)y); - } - } else { - if (rnd_mode != BF_RNDF) { - bf_t *y1; - if (y_emin < 0 && check_exact_power2n(r, T, -y_emin)) { - /* the problem is reduced to a power to an integer */ -#if 0 - printf("\nn=%" PRId64 "\n", -(int64_t)y_emin); - bf_print_str("T", T); - bf_print_str("r", r); -#endif - bf_set(T, r); - y1 = &ytmp_s; - y1->tab = y->tab; - y1->len = y->len; - y1->sign = y->sign; - y1->expn = y->expn - y_emin; - y = y1; - goto int_pow; - } - } - general_case: - ret = bf_ziv_rounding(r, T, prec, flags, bf_pow_generic, (void *)y); - } - } - done: - bf_delete(T); - r->sign = r_sign; - return ret; -} - -/* compute sqrt(-2*x-x^2) to get |sin(x)| from cos(x) - 1. */ -static void bf_sqrt_sin(bf_t *r, const bf_t *x, limb_t prec1) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - bf_init(s, T); - bf_set(T, x); - bf_mul(r, T, T, prec1, BF_RNDN); - bf_mul_2exp(T, 1, BF_PREC_INF, BF_RNDZ); - bf_add(T, T, r, prec1, BF_RNDN); - bf_neg(T); - bf_sqrt(r, T, prec1, BF_RNDF); - bf_delete(T); -} - -static int bf_sincos(bf_t *s, bf_t *c, const bf_t *a, limb_t prec) -{ - bf_context_t *s1 = a->ctx; - bf_t T_s, *T = &T_s; - bf_t U_s, *U = &U_s; - bf_t r_s, *r = &r_s; - slimb_t K, prec1, i, l, mod, prec2; - int is_neg; - - assert(c != a && s != a); - - bf_init(s1, T); - bf_init(s1, U); - bf_init(s1, r); - - /* XXX: precision analysis */ - K = bf_isqrt(prec / 2); - l = prec / (2 * K) + 1; - prec1 = prec + 2 * K + l + 8; - - /* after the modulo reduction, -pi/4 <= T <= pi/4 */ - if (a->expn <= -1) { - /* abs(a) <= 0.25: no modulo reduction needed */ - bf_set(T, a); - mod = 0; - } else { - slimb_t cancel; - cancel = 0; - for(;;) { - prec2 = prec1 + a->expn + cancel; - bf_const_pi(U, prec2, BF_RNDF); - bf_mul_2exp(U, -1, BF_PREC_INF, BF_RNDZ); - bf_remquo(&mod, T, a, U, prec2, BF_RNDN, BF_RNDN); - // printf("T.expn=%ld prec2=%ld\n", T->expn, prec2); - if (mod == 0 || (T->expn != BF_EXP_ZERO && - (T->expn + prec2) >= (prec1 - 1))) - break; - /* increase the number of bits until the precision is good enough */ - cancel = bf_max(-T->expn, (cancel + 1) * 3 / 2); - } - mod &= 3; - } - - is_neg = T->sign; - - /* compute cosm1(x) = cos(x) - 1 */ - bf_mul(T, T, T, prec1, BF_RNDN); - bf_mul_2exp(T, -2 * K, BF_PREC_INF, BF_RNDZ); - - /* Taylor expansion: - -x^2/2 + x^4/4! - x^6/6! + ... - */ - bf_set_ui(r, 1); - for(i = l ; i >= 1; i--) { - bf_set_ui(U, 2 * i - 1); - bf_mul_ui(U, U, 2 * i, BF_PREC_INF, BF_RNDZ); - bf_div(U, T, U, prec1, BF_RNDN); - bf_mul(r, r, U, prec1, BF_RNDN); - bf_neg(r); - if (i != 1) - bf_add_si(r, r, 1, prec1, BF_RNDN); - } - bf_delete(U); - - /* undo argument reduction: - cosm1(2*x)= 2*(2*cosm1(x)+cosm1(x)^2) - */ - for(i = 0; i < K; i++) { - bf_mul(T, r, r, prec1, BF_RNDN); - bf_mul_2exp(r, 1, BF_PREC_INF, BF_RNDZ); - bf_add(r, r, T, prec1, BF_RNDN); - bf_mul_2exp(r, 1, BF_PREC_INF, BF_RNDZ); - } - bf_delete(T); - - if (c) { - if ((mod & 1) == 0) { - bf_add_si(c, r, 1, prec1, BF_RNDN); - } else { - bf_sqrt_sin(c, r, prec1); - c->sign = is_neg ^ 1; - } - c->sign ^= mod >> 1; - } - if (s) { - if ((mod & 1) == 0) { - bf_sqrt_sin(s, r, prec1); - s->sign = is_neg; - } else { - bf_add_si(s, r, 1, prec1, BF_RNDN); - } - s->sign ^= mod >> 1; - } - bf_delete(r); - return BF_ST_INEXACT; -} - -static int bf_cos_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) -{ - return bf_sincos(NULL, r, a, prec); -} - -int bf_cos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set_ui(r, 1); - return 0; - } - } - - /* small argument case: result = 1+r(x) with r(x) = -x^2/2 + - O(X^4). We assume r(x) < 2^(2*EXP(x) - 1). */ - if (a->expn < 0) { - slimb_t e; - e = 2 * a->expn - 1; - if (e < -(prec + 2)) { - bf_set_ui(r, 1); - return bf_add_epsilon(r, r, e, 1, prec, flags); - } - } - - return bf_ziv_rounding(r, a, prec, flags, bf_cos_internal, NULL); -} - -static int bf_sin_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) -{ - return bf_sincos(r, NULL, a, prec); -} - -int bf_sin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set_zero(r, a->sign); - return 0; - } - } - - /* small argument case: result = x+r(x) with r(x) = -x^3/6 + - O(X^5). We assume r(x) < 2^(3*EXP(x) - 2). */ - if (a->expn < 0) { - slimb_t e; - e = sat_add(2 * a->expn, a->expn - 2); - if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { - bf_set(r, a); - return bf_add_epsilon(r, r, e, 1 - a->sign, prec, flags); - } - } - - return bf_ziv_rounding(r, a, prec, flags, bf_sin_internal, NULL); -} - -static int bf_tan_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - limb_t prec1; - - /* XXX: precision analysis */ - prec1 = prec + 8; - bf_init(s, T); - bf_sincos(r, T, a, prec1); - bf_div(r, r, T, prec1, BF_RNDF); - bf_delete(T); - return BF_ST_INEXACT; -} - -int bf_tan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - assert(r != a); - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set_zero(r, a->sign); - return 0; - } - } - - /* small argument case: result = x+r(x) with r(x) = x^3/3 + - O(X^5). We assume r(x) < 2^(3*EXP(x) - 1). */ - if (a->expn < 0) { - slimb_t e; - e = sat_add(2 * a->expn, a->expn - 1); - if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { - bf_set(r, a); - return bf_add_epsilon(r, r, e, a->sign, prec, flags); - } - } - - return bf_ziv_rounding(r, a, prec, flags, bf_tan_internal, NULL); -} - -/* if add_pi2 is true, add pi/2 to the result (used for acos(x) to - avoid cancellation) */ -static int bf_atan_internal(bf_t *r, const bf_t *a, limb_t prec, - void *opaque) -{ - bf_context_t *s = r->ctx; - BOOL add_pi2 = (BOOL)(intptr_t)opaque; - bf_t T_s, *T = &T_s; - bf_t U_s, *U = &U_s; - bf_t V_s, *V = &V_s; - bf_t X2_s, *X2 = &X2_s; - int cmp_1; - slimb_t prec1, i, K, l; - - /* XXX: precision analysis */ - K = bf_isqrt((prec + 1) / 2); - l = prec / (2 * K) + 1; - prec1 = prec + K + 2 * l + 32; - // printf("prec=%d K=%d l=%d prec1=%d\n", (int)prec, (int)K, (int)l, (int)prec1); - - bf_init(s, T); - cmp_1 = (a->expn >= 1); /* a >= 1 */ - if (cmp_1) { - bf_set_ui(T, 1); - bf_div(T, T, a, prec1, BF_RNDN); - } else { - bf_set(T, a); - } - - /* abs(T) <= 1 */ - - /* argument reduction */ - - bf_init(s, U); - bf_init(s, V); - bf_init(s, X2); - for(i = 0; i < K; i++) { - /* T = T / (1 + sqrt(1 + T^2)) */ - bf_mul(U, T, T, prec1, BF_RNDN); - bf_add_si(U, U, 1, prec1, BF_RNDN); - bf_sqrt(V, U, prec1, BF_RNDN); - bf_add_si(V, V, 1, prec1, BF_RNDN); - bf_div(T, T, V, prec1, BF_RNDN); - } - - /* Taylor series: - x - x^3/3 + ... + (-1)^ l * y^(2*l + 1) / (2*l+1) - */ - bf_mul(X2, T, T, prec1, BF_RNDN); - bf_set_ui(r, 0); - for(i = l; i >= 1; i--) { - bf_set_si(U, 1); - bf_set_ui(V, 2 * i + 1); - bf_div(U, U, V, prec1, BF_RNDN); - bf_neg(r); - bf_add(r, r, U, prec1, BF_RNDN); - bf_mul(r, r, X2, prec1, BF_RNDN); - } - bf_neg(r); - bf_add_si(r, r, 1, prec1, BF_RNDN); - bf_mul(r, r, T, prec1, BF_RNDN); - - /* undo the argument reduction */ - bf_mul_2exp(r, K, BF_PREC_INF, BF_RNDZ); - - bf_delete(U); - bf_delete(V); - bf_delete(X2); - - i = add_pi2; - if (cmp_1 > 0) { - /* undo the inversion : r = sign(a)*PI/2 - r */ - bf_neg(r); - i += 1 - 2 * a->sign; - } - /* add i*(pi/2) with -1 <= i <= 2 */ - if (i != 0) { - bf_const_pi(T, prec1, BF_RNDF); - if (i != 2) - bf_mul_2exp(T, -1, BF_PREC_INF, BF_RNDZ); - T->sign = (i < 0); - bf_add(r, T, r, prec1, BF_RNDN); - } - - bf_delete(T); - return BF_ST_INEXACT; -} - -int bf_atan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - int res; - - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - /* -PI/2 or PI/2 */ - bf_const_pi_signed(r, a->sign, prec, flags); - bf_mul_2exp(r, -1, BF_PREC_INF, BF_RNDZ); - return BF_ST_INEXACT; - } else { - bf_set_zero(r, a->sign); - return 0; - } - } - - bf_init(s, T); - bf_set_ui(T, 1); - res = bf_cmpu(a, T); - bf_delete(T); - if (res == 0) { - /* short cut: abs(a) == 1 -> +/-pi/4 */ - bf_const_pi_signed(r, a->sign, prec, flags); - bf_mul_2exp(r, -2, BF_PREC_INF, BF_RNDZ); - return BF_ST_INEXACT; - } - - /* small argument case: result = x+r(x) with r(x) = -x^3/3 + - O(X^5). We assume r(x) < 2^(3*EXP(x) - 1). */ - if (a->expn < 0) { - slimb_t e; - e = sat_add(2 * a->expn, a->expn - 1); - if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { - bf_set(r, a); - return bf_add_epsilon(r, r, e, 1 - a->sign, prec, flags); - } - } - - return bf_ziv_rounding(r, a, prec, flags, bf_atan_internal, (void *)FALSE); -} - -static int bf_atan2_internal(bf_t *r, const bf_t *y, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - const bf_t *x = opaque; - bf_t T_s, *T = &T_s; - limb_t prec1; - int ret; - - if (y->expn == BF_EXP_NAN || x->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } - - /* compute atan(y/x) assumming inf/inf = 1 and 0/0 = 0 */ - bf_init(s, T); - prec1 = prec + 32; - if (y->expn == BF_EXP_INF && x->expn == BF_EXP_INF) { - bf_set_ui(T, 1); - T->sign = y->sign ^ x->sign; - } else if (y->expn == BF_EXP_ZERO && x->expn == BF_EXP_ZERO) { - bf_set_zero(T, y->sign ^ x->sign); - } else { - bf_div(T, y, x, prec1, BF_RNDF); - } - ret = bf_atan(r, T, prec1, BF_RNDF); - - if (x->sign) { - /* if x < 0 (it includes -0), return sign(y)*pi + atan(y/x) */ - bf_const_pi(T, prec1, BF_RNDF); - T->sign = y->sign; - bf_add(r, r, T, prec1, BF_RNDN); - ret |= BF_ST_INEXACT; - } - - bf_delete(T); - return ret; -} - -int bf_atan2(bf_t *r, const bf_t *y, const bf_t *x, - limb_t prec, bf_flags_t flags) -{ - return bf_ziv_rounding(r, y, prec, flags, bf_atan2_internal, (void *)x); -} - -static int bf_asin_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) -{ - bf_context_t *s = r->ctx; - BOOL is_acos = (BOOL)(intptr_t)opaque; - bf_t T_s, *T = &T_s; - limb_t prec1, prec2; - - /* asin(x) = atan(x/sqrt(1-x^2)) - acos(x) = pi/2 - asin(x) */ - prec1 = prec + 8; - /* increase the precision in x^2 to compensate the cancellation in - (1-x^2) if x is close to 1 */ - /* XXX: use less precision when possible */ - if (a->expn >= 0) - prec2 = BF_PREC_INF; - else - prec2 = prec1; - bf_init(s, T); - bf_mul(T, a, a, prec2, BF_RNDN); - bf_neg(T); - bf_add_si(T, T, 1, prec2, BF_RNDN); - - bf_sqrt(r, T, prec1, BF_RNDN); - bf_div(T, a, r, prec1, BF_RNDN); - if (is_acos) - bf_neg(T); - bf_atan_internal(r, T, prec1, (void *)(intptr_t)is_acos); - bf_delete(T); - return BF_ST_INEXACT; -} - -int bf_asin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - int res; - - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_set_zero(r, a->sign); - return 0; - } - } - bf_init(s, T); - bf_set_ui(T, 1); - res = bf_cmpu(a, T); - bf_delete(T); - if (res > 0) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } - - /* small argument case: result = x+r(x) with r(x) = x^3/6 + - O(X^5). We assume r(x) < 2^(3*EXP(x) - 2). */ - if (a->expn < 0) { - slimb_t e; - e = sat_add(2 * a->expn, a->expn - 2); - if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { - bf_set(r, a); - return bf_add_epsilon(r, r, e, a->sign, prec, flags); - } - } - - return bf_ziv_rounding(r, a, prec, flags, bf_asin_internal, (void *)FALSE); -} - -int bf_acos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = r->ctx; - bf_t T_s, *T = &T_s; - int res; - - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bf_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bf_const_pi(r, prec, flags); - bf_mul_2exp(r, -1, BF_PREC_INF, BF_RNDZ); - return BF_ST_INEXACT; - } - } - bf_init(s, T); - bf_set_ui(T, 1); - res = bf_cmpu(a, T); - bf_delete(T); - if (res > 0) { - bf_set_nan(r); - return BF_ST_INVALID_OP; - } else if (res == 0 && a->sign == 0) { - bf_set_zero(r, 0); - return 0; - } - - return bf_ziv_rounding(r, a, prec, flags, bf_asin_internal, (void *)TRUE); -} - -/***************************************************************/ -/* decimal floating point numbers */ - -#ifdef USE_BF_DEC - -#define adddq(r1, r0, a1, a0) \ - do { \ - limb_t __t = r0; \ - r0 += (a0); \ - r1 += (a1) + (r0 < __t); \ - } while (0) - -#define subdq(r1, r0, a1, a0) \ - do { \ - limb_t __t = r0; \ - r0 -= (a0); \ - r1 -= (a1) + (r0 > __t); \ - } while (0) - -#if LIMB_BITS == 64 - -/* Note: we assume __int128 is available */ -#define muldq(r1, r0, a, b) \ - do { \ - unsigned __int128 __t; \ - __t = (unsigned __int128)(a) * (unsigned __int128)(b); \ - r0 = __t; \ - r1 = __t >> 64; \ - } while (0) - -#define divdq(q, r, a1, a0, b) \ - do { \ - unsigned __int128 __t; \ - limb_t __b = (b); \ - __t = ((unsigned __int128)(a1) << 64) | (a0); \ - q = __t / __b; \ - r = __t % __b; \ - } while (0) - -#else - -#define muldq(r1, r0, a, b) \ - do { \ - uint64_t __t; \ - __t = (uint64_t)(a) * (uint64_t)(b); \ - r0 = __t; \ - r1 = __t >> 32; \ - } while (0) - -#define divdq(q, r, a1, a0, b) \ - do { \ - uint64_t __t; \ - limb_t __b = (b); \ - __t = ((uint64_t)(a1) << 32) | (a0); \ - q = __t / __b; \ - r = __t % __b; \ - } while (0) - -#endif /* LIMB_BITS != 64 */ - -#if LIMB_DIGITS == 19 - -/* WARNING: hardcoded for b = 1e19. It is assumed that: - 0 <= a1 < 2^63 */ -#define divdq_base(q, r, a1, a0)\ -do {\ - uint64_t __a0, __a1, __t0, __t1, __b = BF_DEC_BASE; \ - __a0 = a0;\ - __a1 = a1;\ - __t0 = __a1;\ - __t0 = shld(__t0, __a0, 1);\ - muldq(q, __t1, __t0, UINT64_C(17014118346046923173)); \ - muldq(__t1, __t0, q, __b);\ - subdq(__a1, __a0, __t1, __t0);\ - subdq(__a1, __a0, 1, __b * 2); \ - __t0 = (slimb_t)__a1 >> 1; \ - q += 2 + __t0;\ - adddq(__a1, __a0, 0, __b & __t0);\ - q += __a1; \ - __a0 += __b & __a1; \ - r = __a0;\ -} while(0) - -#elif LIMB_DIGITS == 9 - -/* WARNING: hardcoded for b = 1e9. It is assumed that: - 0 <= a1 < 2^29 */ -#define divdq_base(q, r, a1, a0)\ -do {\ - uint32_t __t0, __t1, __b = BF_DEC_BASE; \ - __t0 = a1;\ - __t1 = a0;\ - __t0 = (__t0 << 3) | (__t1 >> (32 - 3)); \ - muldq(q, __t1, __t0, 2305843009U);\ - r = a0 - q * __b;\ - __t1 = (r >= __b);\ - q += __t1;\ - if (__t1)\ - r -= __b;\ -} while(0) - -#endif - -/* fast integer division by a fixed constant */ - -typedef struct FastDivData { - limb_t m1; /* multiplier */ - int8_t shift1; - int8_t shift2; -} FastDivData; - -/* From "Division by Invariant Integers using Multiplication" by - Torborn Granlund and Peter L. Montgomery */ -/* d must be != 0 */ -static inline __maybe_unused void fast_udiv_init(FastDivData *s, limb_t d) -{ - int l; - limb_t q, r, m1; - if (d == 1) - l = 0; - else - l = 64 - clz64(d - 1); - divdq(q, r, ((limb_t)1 << l) - d, 0, d); - (void)r; - m1 = q + 1; - // printf("d=%lu l=%d m1=0x%016lx\n", d, l, m1); - s->m1 = m1; - s->shift1 = l; - if (s->shift1 > 1) - s->shift1 = 1; - s->shift2 = l - 1; - if (s->shift2 < 0) - s->shift2 = 0; -} - -static inline limb_t fast_udiv(limb_t a, const FastDivData *s) -{ - limb_t t0, t1; - muldq(t1, t0, s->m1, a); - t0 = (a - t1) >> s->shift1; - return (t1 + t0) >> s->shift2; -} - -/* contains 10^i */ -const limb_t mp_pow_dec[LIMB_DIGITS + 1] = { - 1U, - 10U, - 100U, - 1000U, - 10000U, - 100000U, - 1000000U, - 10000000U, - 100000000U, - 1000000000U, -#if LIMB_BITS == 64 - 10000000000U, - 100000000000U, - 1000000000000U, - 10000000000000U, - 100000000000000U, - 1000000000000000U, - 10000000000000000U, - 100000000000000000U, - 1000000000000000000U, - 10000000000000000000U, -#endif -}; - -/* precomputed from fast_udiv_init(10^i) */ -static const FastDivData mp_pow_div[LIMB_DIGITS + 1] = { -#if LIMB_BITS == 32 - { 0x00000001, 0, 0 }, - { 0x9999999a, 1, 3 }, - { 0x47ae147b, 1, 6 }, - { 0x0624dd30, 1, 9 }, - { 0xa36e2eb2, 1, 13 }, - { 0x4f8b588f, 1, 16 }, - { 0x0c6f7a0c, 1, 19 }, - { 0xad7f29ac, 1, 23 }, - { 0x5798ee24, 1, 26 }, - { 0x12e0be83, 1, 29 }, -#else - { 0x0000000000000001, 0, 0 }, - { 0x999999999999999a, 1, 3 }, - { 0x47ae147ae147ae15, 1, 6 }, - { 0x0624dd2f1a9fbe77, 1, 9 }, - { 0xa36e2eb1c432ca58, 1, 13 }, - { 0x4f8b588e368f0847, 1, 16 }, - { 0x0c6f7a0b5ed8d36c, 1, 19 }, - { 0xad7f29abcaf48579, 1, 23 }, - { 0x5798ee2308c39dfa, 1, 26 }, - { 0x12e0be826d694b2f, 1, 29 }, - { 0xb7cdfd9d7bdbab7e, 1, 33 }, - { 0x5fd7fe17964955fe, 1, 36 }, - { 0x19799812dea11198, 1, 39 }, - { 0xc25c268497681c27, 1, 43 }, - { 0x6849b86a12b9b01f, 1, 46 }, - { 0x203af9ee756159b3, 1, 49 }, - { 0xcd2b297d889bc2b7, 1, 53 }, - { 0x70ef54646d496893, 1, 56 }, - { 0x2725dd1d243aba0f, 1, 59 }, - { 0xd83c94fb6d2ac34d, 1, 63 }, -#endif -}; - -/* divide by 10^shift with 0 <= shift <= LIMB_DIGITS */ -static inline limb_t fast_shr_dec(limb_t a, int shift) -{ - return fast_udiv(a, &mp_pow_div[shift]); -} - -/* division and remainder by 10^shift */ -#define fast_shr_rem_dec(q, r, a, shift) q = fast_shr_dec(a, shift), r = a - q * mp_pow_dec[shift] - -limb_t mp_add_dec(limb_t *res, const limb_t *op1, const limb_t *op2, - mp_size_t n, limb_t carry) -{ - limb_t base = BF_DEC_BASE; - mp_size_t i; - limb_t k, a, v; - - k=carry; - for(i=0;i v; - if (k) - a += base; - res[i] = a; - } - return k; -} - -limb_t mp_sub_ui_dec(limb_t *tab, limb_t b, mp_size_t n) -{ - limb_t base = BF_DEC_BASE; - mp_size_t i; - limb_t k, v, a; - - k=b; - for(i=0;i v; - if (k) - a += base; - tab[i]=a; - if (k == 0) - break; - } - return k; -} - -/* taba[] = taba[] * b + l. 0 <= b, l <= base - 1. Return the high carry */ -limb_t mp_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n, - limb_t b, limb_t l) -{ - mp_size_t i; - limb_t t0, t1, r; - - for(i = 0; i < n; i++) { - muldq(t1, t0, taba[i], b); - adddq(t1, t0, 0, l); - divdq_base(l, r, t1, t0); - tabr[i] = r; - } - return l; -} - -/* tabr[] += taba[] * b. 0 <= b <= base - 1. Return the value to add - to the high word */ -limb_t mp_add_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n, - limb_t b) -{ - mp_size_t i; - limb_t l, t0, t1, r; - - l = 0; - for(i = 0; i < n; i++) { - muldq(t1, t0, taba[i], b); - adddq(t1, t0, 0, l); - adddq(t1, t0, 0, tabr[i]); - divdq_base(l, r, t1, t0); - tabr[i] = r; - } - return l; -} - -/* tabr[] -= taba[] * b. 0 <= b <= base - 1. Return the value to - substract to the high word. */ -limb_t mp_sub_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n, - limb_t b) -{ - limb_t base = BF_DEC_BASE; - mp_size_t i; - limb_t l, t0, t1, r, a, v, c; - - /* XXX: optimize */ - l = 0; - for(i = 0; i < n; i++) { - muldq(t1, t0, taba[i], b); - adddq(t1, t0, 0, l); - divdq_base(l, r, t1, t0); - v = tabr[i]; - a = v - r; - c = a > v; - if (c) - a += base; - /* never bigger than base because r = 0 when l = base - 1 */ - l += c; - tabr[i] = a; - } - return l; -} - -/* size of the result : op1_size + op2_size. */ -void mp_mul_basecase_dec(limb_t *result, - const limb_t *op1, mp_size_t op1_size, - const limb_t *op2, mp_size_t op2_size) -{ - mp_size_t i; - limb_t r; - - result[op1_size] = mp_mul1_dec(result, op1, op1_size, op2[0], 0); - - for(i=1;i> 1; - if (r) - r = base_div2; - for(i = na - 1; i >= 0; i--) { - t0 = taba[i]; - tabr[i] = (t0 >> 1) + r; - r = 0; - if (t0 & 1) - r = base_div2; - } - if (r) - r = 1; - } else -#endif - if (na >= UDIV1NORM_THRESHOLD) { - shift = clz(b); - if (shift == 0) { - /* normalized case: b >= 2^(LIMB_BITS-1) */ - limb_t b_inv; - b_inv = udiv1norm_init(b); - for(i = na - 1; i >= 0; i--) { - muldq(t1, t0, r, base); - adddq(t1, t0, 0, taba[i]); - q = udiv1norm(&r, t1, t0, b, b_inv); - tabr[i] = q; - } - } else { - limb_t b_inv; - b <<= shift; - b_inv = udiv1norm_init(b); - for(i = na - 1; i >= 0; i--) { - muldq(t1, t0, r, base); - adddq(t1, t0, 0, taba[i]); - t1 = (t1 << shift) | (t0 >> (LIMB_BITS - shift)); - t0 <<= shift; - q = udiv1norm(&r, t1, t0, b, b_inv); - r >>= shift; - tabr[i] = q; - } - } - } else { - for(i = na - 1; i >= 0; i--) { - muldq(t1, t0, r, base); - adddq(t1, t0, 0, taba[i]); - divdq(q, r, t1, t0, b); - tabr[i] = q; - } - } - return r; -} - -static __maybe_unused void mp_print_str_dec(const char *str, - const limb_t *tab, slimb_t n) -{ - slimb_t i; - printf("%s=", str); - for(i = n - 1; i >= 0; i--) { - if (i != n - 1) - printf("_"); - printf("%0*" PRIu_LIMB, LIMB_DIGITS, tab[i]); - } - printf("\n"); -} - -static __maybe_unused void mp_print_str_h_dec(const char *str, - const limb_t *tab, slimb_t n, - limb_t high) -{ - slimb_t i; - printf("%s=", str); - printf("%0*" PRIu_LIMB, LIMB_DIGITS, high); - for(i = n - 1; i >= 0; i--) { - printf("_"); - printf("%0*" PRIu_LIMB, LIMB_DIGITS, tab[i]); - } - printf("\n"); -} - -//#define DEBUG_DIV_SLOW - -#define DIV_STATIC_ALLOC_LEN 16 - -/* return q = a / b and r = a % b. - - taba[na] must be allocated if tabb1[nb - 1] < B / 2. tabb1[nb - 1] - must be != zero. na must be >= nb. 's' can be NULL if tabb1[nb - 1] - >= B / 2. - - The remainder is is returned in taba and contains nb libms. tabq - contains na - nb + 1 limbs. No overlap is permitted. - - Running time of the standard method: (na - nb + 1) * nb - Return 0 if OK, -1 if memory alloc error -*/ -/* XXX: optimize */ -static int mp_div_dec(bf_context_t *s, limb_t *tabq, - limb_t *taba, mp_size_t na, - const limb_t *tabb1, mp_size_t nb) -{ - limb_t base = BF_DEC_BASE; - limb_t r, mult, t0, t1, a, c, q, v, *tabb; - mp_size_t i, j; - limb_t static_tabb[DIV_STATIC_ALLOC_LEN]; - -#ifdef DEBUG_DIV_SLOW - mp_print_str_dec("a", taba, na); - mp_print_str_dec("b", tabb1, nb); -#endif - - /* normalize tabb */ - r = tabb1[nb - 1]; - assert(r != 0); - i = na - nb; - if (r >= BF_DEC_BASE / 2) { - mult = 1; - tabb = (limb_t *)tabb1; - q = 1; - for(j = nb - 1; j >= 0; j--) { - if (taba[i + j] != tabb[j]) { - if (taba[i + j] < tabb[j]) - q = 0; - break; - } - } - tabq[i] = q; - if (q) { - mp_sub_dec(taba + i, taba + i, tabb, nb, 0); - } - i--; - } else { - mult = base / (r + 1); - if (likely(nb <= DIV_STATIC_ALLOC_LEN)) { - tabb = static_tabb; - } else { - tabb = bf_malloc(s, sizeof(limb_t) * nb); - if (!tabb) - return -1; - } - mp_mul1_dec(tabb, tabb1, nb, mult, 0); - taba[na] = mp_mul1_dec(taba, taba, na, mult, 0); - } - -#ifdef DEBUG_DIV_SLOW - printf("mult=" FMT_LIMB "\n", mult); - mp_print_str_dec("a_norm", taba, na + 1); - mp_print_str_dec("b_norm", tabb, nb); -#endif - - for(; i >= 0; i--) { - if (unlikely(taba[i + nb] >= tabb[nb - 1])) { - /* XXX: check if it is really possible */ - q = base - 1; - } else { - muldq(t1, t0, taba[i + nb], base); - adddq(t1, t0, 0, taba[i + nb - 1]); - divdq(q, r, t1, t0, tabb[nb - 1]); - } - // printf("i=%d q1=%ld\n", i, q); - - r = mp_sub_mul1_dec(taba + i, tabb, nb, q); - // mp_dump("r1", taba + i, nb, bd); - // printf("r2=%ld\n", r); - - v = taba[i + nb]; - a = v - r; - c = a > v; - if (c) - a += base; - taba[i + nb] = a; - - if (c != 0) { - /* negative result */ - for(;;) { - q--; - c = mp_add_dec(taba + i, taba + i, tabb, nb, 0); - /* propagate carry and test if positive result */ - if (c != 0) { - if (++taba[i + nb] == base) { - break; - } - } - } - } - tabq[i] = q; - } - -#ifdef DEBUG_DIV_SLOW - mp_print_str_dec("q", tabq, na - nb + 1); - mp_print_str_dec("r", taba, nb); -#endif - - /* remove the normalization */ - if (mult != 1) { - mp_div1_dec(taba, taba, nb, mult, 0); - if (unlikely(tabb != static_tabb)) - bf_free(s, tabb); - } - return 0; -} - -/* divide by 10^shift */ -static limb_t mp_shr_dec(limb_t *tab_r, const limb_t *tab, mp_size_t n, - limb_t shift, limb_t high) -{ - mp_size_t i; - limb_t l, a, q, r; - - assert(shift >= 1 && shift < LIMB_DIGITS); - l = high; - for(i = n - 1; i >= 0; i--) { - a = tab[i]; - fast_shr_rem_dec(q, r, a, shift); - tab_r[i] = q + l * mp_pow_dec[LIMB_DIGITS - shift]; - l = r; - } - return l; -} - -/* multiply by 10^shift */ -static limb_t mp_shl_dec(limb_t *tab_r, const limb_t *tab, mp_size_t n, - limb_t shift, limb_t low) -{ - mp_size_t i; - limb_t l, a, q, r; - - assert(shift >= 1 && shift < LIMB_DIGITS); - l = low; - for(i = 0; i < n; i++) { - a = tab[i]; - fast_shr_rem_dec(q, r, a, LIMB_DIGITS - shift); - tab_r[i] = r * mp_pow_dec[shift] + l; - l = q; - } - return l; -} - -static limb_t mp_sqrtrem2_dec(limb_t *tabs, limb_t *taba) -{ - int k; - dlimb_t a, b, r; - limb_t taba1[2], s, r0, r1; - - /* convert to binary and normalize */ - a = (dlimb_t)taba[1] * BF_DEC_BASE + taba[0]; - k = clz(a >> LIMB_BITS) & ~1; - b = a << k; - taba1[0] = b; - taba1[1] = b >> LIMB_BITS; - mp_sqrtrem2(&s, taba1); - s >>= (k >> 1); - /* convert the remainder back to decimal */ - r = a - (dlimb_t)s * (dlimb_t)s; - divdq_base(r1, r0, r >> LIMB_BITS, r); - taba[0] = r0; - tabs[0] = s; - return r1; -} - -//#define DEBUG_SQRTREM_DEC - -/* tmp_buf must contain (n / 2 + 1 limbs) */ -static limb_t mp_sqrtrem_rec_dec(limb_t *tabs, limb_t *taba, limb_t n, - limb_t *tmp_buf) -{ - limb_t l, h, rh, ql, qh, c, i; - - if (n == 1) - return mp_sqrtrem2_dec(tabs, taba); -#ifdef DEBUG_SQRTREM_DEC - mp_print_str_dec("a", taba, 2 * n); -#endif - l = n / 2; - h = n - l; - qh = mp_sqrtrem_rec_dec(tabs + l, taba + 2 * l, h, tmp_buf); -#ifdef DEBUG_SQRTREM_DEC - mp_print_str_dec("s1", tabs + l, h); - mp_print_str_h_dec("r1", taba + 2 * l, h, qh); - mp_print_str_h_dec("r2", taba + l, n, qh); -#endif - - /* the remainder is in taba + 2 * l. Its high bit is in qh */ - if (qh) { - mp_sub_dec(taba + 2 * l, taba + 2 * l, tabs + l, h, 0); - } - /* instead of dividing by 2*s, divide by s (which is normalized) - and update q and r */ - mp_div_dec(NULL, tmp_buf, taba + l, n, tabs + l, h); - qh += tmp_buf[l]; - for(i = 0; i < l; i++) - tabs[i] = tmp_buf[i]; - ql = mp_div1_dec(tabs, tabs, l, 2, qh & 1); - qh = qh >> 1; /* 0 or 1 */ - if (ql) - rh = mp_add_dec(taba + l, taba + l, tabs + l, h, 0); - else - rh = 0; -#ifdef DEBUG_SQRTREM_DEC - mp_print_str_h_dec("q", tabs, l, qh); - mp_print_str_h_dec("u", taba + l, h, rh); -#endif - - mp_add_ui_dec(tabs + l, qh, h); -#ifdef DEBUG_SQRTREM_DEC - mp_print_str_dec("s2", tabs, n); -#endif - - /* q = qh, tabs[l - 1 ... 0], r = taba[n - 1 ... l] */ - /* subtract q^2. if qh = 1 then q = B^l, so we can take shortcuts */ - if (qh) { - c = qh; - } else { - mp_mul_basecase_dec(taba + n, tabs, l, tabs, l); - c = mp_sub_dec(taba, taba, taba + n, 2 * l, 0); - } - rh -= mp_sub_ui_dec(taba + 2 * l, c, n - 2 * l); - if ((slimb_t)rh < 0) { - mp_sub_ui_dec(tabs, 1, n); - rh += mp_add_mul1_dec(taba, tabs, n, 2); - rh += mp_add_ui_dec(taba, 1, n); - } - return rh; -} - -/* 'taba' has 2*n limbs with n >= 1 and taba[2*n-1] >= B/4. Return (s, - r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2 * s. tabs has n - limbs. r is returned in the lower n limbs of taba. Its r[n] is the - returned value of the function. */ -int mp_sqrtrem_dec(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n) -{ - limb_t tmp_buf1[8]; - limb_t *tmp_buf; - mp_size_t n2; - n2 = n / 2 + 1; - if (n2 <= countof(tmp_buf1)) { - tmp_buf = tmp_buf1; - } else { - tmp_buf = bf_malloc(s, sizeof(limb_t) * n2); - if (!tmp_buf) - return -1; - } - taba[n] = mp_sqrtrem_rec_dec(tabs, taba, n, tmp_buf); - if (tmp_buf != tmp_buf1) - bf_free(s, tmp_buf); - return 0; -} - -/* return the number of leading zero digits, from 0 to LIMB_DIGITS */ -static int clz_dec(limb_t a) -{ - if (a == 0) - return LIMB_DIGITS; - switch(LIMB_BITS - 1 - clz(a)) { - case 0: /* 1-1 */ - return LIMB_DIGITS - 1; - case 1: /* 2-3 */ - return LIMB_DIGITS - 1; - case 2: /* 4-7 */ - return LIMB_DIGITS - 1; - case 3: /* 8-15 */ - if (a < 10) - return LIMB_DIGITS - 1; - else - return LIMB_DIGITS - 2; - case 4: /* 16-31 */ - return LIMB_DIGITS - 2; - case 5: /* 32-63 */ - return LIMB_DIGITS - 2; - case 6: /* 64-127 */ - if (a < 100) - return LIMB_DIGITS - 2; - else - return LIMB_DIGITS - 3; - case 7: /* 128-255 */ - return LIMB_DIGITS - 3; - case 8: /* 256-511 */ - return LIMB_DIGITS - 3; - case 9: /* 512-1023 */ - if (a < 1000) - return LIMB_DIGITS - 3; - else - return LIMB_DIGITS - 4; - case 10: /* 1024-2047 */ - return LIMB_DIGITS - 4; - case 11: /* 2048-4095 */ - return LIMB_DIGITS - 4; - case 12: /* 4096-8191 */ - return LIMB_DIGITS - 4; - case 13: /* 8192-16383 */ - if (a < 10000) - return LIMB_DIGITS - 4; - else - return LIMB_DIGITS - 5; - case 14: /* 16384-32767 */ - return LIMB_DIGITS - 5; - case 15: /* 32768-65535 */ - return LIMB_DIGITS - 5; - case 16: /* 65536-131071 */ - if (a < 100000) - return LIMB_DIGITS - 5; - else - return LIMB_DIGITS - 6; - case 17: /* 131072-262143 */ - return LIMB_DIGITS - 6; - case 18: /* 262144-524287 */ - return LIMB_DIGITS - 6; - case 19: /* 524288-1048575 */ - if (a < 1000000) - return LIMB_DIGITS - 6; - else - return LIMB_DIGITS - 7; - case 20: /* 1048576-2097151 */ - return LIMB_DIGITS - 7; - case 21: /* 2097152-4194303 */ - return LIMB_DIGITS - 7; - case 22: /* 4194304-8388607 */ - return LIMB_DIGITS - 7; - case 23: /* 8388608-16777215 */ - if (a < 10000000) - return LIMB_DIGITS - 7; - else - return LIMB_DIGITS - 8; - case 24: /* 16777216-33554431 */ - return LIMB_DIGITS - 8; - case 25: /* 33554432-67108863 */ - return LIMB_DIGITS - 8; - case 26: /* 67108864-134217727 */ - if (a < 100000000) - return LIMB_DIGITS - 8; - else - return LIMB_DIGITS - 9; -#if LIMB_BITS == 64 - case 27: /* 134217728-268435455 */ - return LIMB_DIGITS - 9; - case 28: /* 268435456-536870911 */ - return LIMB_DIGITS - 9; - case 29: /* 536870912-1073741823 */ - if (a < 1000000000) - return LIMB_DIGITS - 9; - else - return LIMB_DIGITS - 10; - case 30: /* 1073741824-2147483647 */ - return LIMB_DIGITS - 10; - case 31: /* 2147483648-4294967295 */ - return LIMB_DIGITS - 10; - case 32: /* 4294967296-8589934591 */ - return LIMB_DIGITS - 10; - case 33: /* 8589934592-17179869183 */ - if (a < 10000000000) - return LIMB_DIGITS - 10; - else - return LIMB_DIGITS - 11; - case 34: /* 17179869184-34359738367 */ - return LIMB_DIGITS - 11; - case 35: /* 34359738368-68719476735 */ - return LIMB_DIGITS - 11; - case 36: /* 68719476736-137438953471 */ - if (a < 100000000000) - return LIMB_DIGITS - 11; - else - return LIMB_DIGITS - 12; - case 37: /* 137438953472-274877906943 */ - return LIMB_DIGITS - 12; - case 38: /* 274877906944-549755813887 */ - return LIMB_DIGITS - 12; - case 39: /* 549755813888-1099511627775 */ - if (a < 1000000000000) - return LIMB_DIGITS - 12; - else - return LIMB_DIGITS - 13; - case 40: /* 1099511627776-2199023255551 */ - return LIMB_DIGITS - 13; - case 41: /* 2199023255552-4398046511103 */ - return LIMB_DIGITS - 13; - case 42: /* 4398046511104-8796093022207 */ - return LIMB_DIGITS - 13; - case 43: /* 8796093022208-17592186044415 */ - if (a < 10000000000000) - return LIMB_DIGITS - 13; - else - return LIMB_DIGITS - 14; - case 44: /* 17592186044416-35184372088831 */ - return LIMB_DIGITS - 14; - case 45: /* 35184372088832-70368744177663 */ - return LIMB_DIGITS - 14; - case 46: /* 70368744177664-140737488355327 */ - if (a < 100000000000000) - return LIMB_DIGITS - 14; - else - return LIMB_DIGITS - 15; - case 47: /* 140737488355328-281474976710655 */ - return LIMB_DIGITS - 15; - case 48: /* 281474976710656-562949953421311 */ - return LIMB_DIGITS - 15; - case 49: /* 562949953421312-1125899906842623 */ - if (a < 1000000000000000) - return LIMB_DIGITS - 15; - else - return LIMB_DIGITS - 16; - case 50: /* 1125899906842624-2251799813685247 */ - return LIMB_DIGITS - 16; - case 51: /* 2251799813685248-4503599627370495 */ - return LIMB_DIGITS - 16; - case 52: /* 4503599627370496-9007199254740991 */ - return LIMB_DIGITS - 16; - case 53: /* 9007199254740992-18014398509481983 */ - if (a < 10000000000000000) - return LIMB_DIGITS - 16; - else - return LIMB_DIGITS - 17; - case 54: /* 18014398509481984-36028797018963967 */ - return LIMB_DIGITS - 17; - case 55: /* 36028797018963968-72057594037927935 */ - return LIMB_DIGITS - 17; - case 56: /* 72057594037927936-144115188075855871 */ - if (a < 100000000000000000) - return LIMB_DIGITS - 17; - else - return LIMB_DIGITS - 18; - case 57: /* 144115188075855872-288230376151711743 */ - return LIMB_DIGITS - 18; - case 58: /* 288230376151711744-576460752303423487 */ - return LIMB_DIGITS - 18; - case 59: /* 576460752303423488-1152921504606846975 */ - if (a < 1000000000000000000) - return LIMB_DIGITS - 18; - else - return LIMB_DIGITS - 19; -#endif - default: - return 0; - } -} - -/* for debugging */ -void bfdec_print_str(const char *str, const bfdec_t *a) -{ - slimb_t i; - printf("%s=", str); - - if (a->expn == BF_EXP_NAN) { - printf("NaN"); - } else { - if (a->sign) - putchar('-'); - if (a->expn == BF_EXP_ZERO) { - putchar('0'); - } else if (a->expn == BF_EXP_INF) { - printf("Inf"); - } else { - printf("0."); - for(i = a->len - 1; i >= 0; i--) - printf("%0*" PRIu_LIMB, LIMB_DIGITS, a->tab[i]); - printf("e%" PRId_LIMB, a->expn); - } - } - printf("\n"); -} - -/* return != 0 if one digit between 0 and bit_pos inclusive is not zero. */ -static inline limb_t scan_digit_nz(const bfdec_t *r, slimb_t bit_pos) -{ - slimb_t pos; - limb_t v, q; - int shift; - - if (bit_pos < 0) - return 0; - pos = (limb_t)bit_pos / LIMB_DIGITS; - shift = (limb_t)bit_pos % LIMB_DIGITS; - fast_shr_rem_dec(q, v, r->tab[pos], shift + 1); - (void)q; - if (v != 0) - return 1; - pos--; - while (pos >= 0) { - if (r->tab[pos] != 0) - return 1; - pos--; - } - return 0; -} - -static limb_t get_digit(const limb_t *tab, limb_t len, slimb_t pos) -{ - slimb_t i; - int shift; - i = floor_div(pos, LIMB_DIGITS); - if (i < 0 || i >= len) - return 0; - shift = pos - i * LIMB_DIGITS; - return fast_shr_dec(tab[i], shift) % 10; -} - -#if 0 -static limb_t get_digits(const limb_t *tab, limb_t len, slimb_t pos) -{ - limb_t a0, a1; - int shift; - slimb_t i; - - i = floor_div(pos, LIMB_DIGITS); - shift = pos - i * LIMB_DIGITS; - if (i >= 0 && i < len) - a0 = tab[i]; - else - a0 = 0; - if (shift == 0) { - return a0; - } else { - i++; - if (i >= 0 && i < len) - a1 = tab[i]; - else - a1 = 0; - return fast_shr_dec(a0, shift) + - fast_urem(a1, &mp_pow_div[LIMB_DIGITS - shift]) * - mp_pow_dec[shift]; - } -} -#endif - -/* return the addend for rounding. Note that prec can be <= 0 for bf_rint() */ -static int bfdec_get_rnd_add(int *pret, const bfdec_t *r, limb_t l, - slimb_t prec, int rnd_mode) -{ - int add_one, inexact; - limb_t digit1, digit0; - - // bfdec_print_str("get_rnd_add", r); - if (rnd_mode == BF_RNDF) { - digit0 = 1; /* faithful rounding does not honor the INEXACT flag */ - } else { - /* starting limb for bit 'prec + 1' */ - digit0 = scan_digit_nz(r, l * LIMB_DIGITS - 1 - bf_max(0, prec + 1)); - } - - /* get the digit at 'prec' */ - digit1 = get_digit(r->tab, l, l * LIMB_DIGITS - 1 - prec); - inexact = (digit1 | digit0) != 0; - - add_one = 0; - switch(rnd_mode) { - case BF_RNDZ: - break; - case BF_RNDN: - if (digit1 == 5) { - if (digit0) { - add_one = 1; - } else { - /* round to even */ - add_one = - get_digit(r->tab, l, l * LIMB_DIGITS - 1 - (prec - 1)) & 1; - } - } else if (digit1 > 5) { - add_one = 1; - } - break; - case BF_RNDD: - case BF_RNDU: - if (r->sign == (rnd_mode == BF_RNDD)) - add_one = inexact; - break; - case BF_RNDNA: - case BF_RNDF: - add_one = (digit1 >= 5); - break; - case BF_RNDA: - add_one = inexact; - break; - default: - abort(); - } - - if (inexact) - *pret |= BF_ST_INEXACT; - return add_one; -} - -/* round to prec1 bits assuming 'r' is non zero and finite. 'r' is - assumed to have length 'l' (1 <= l <= r->len). prec1 can be - BF_PREC_INF. BF_FLAG_SUBNORMAL is not supported. Cannot fail with - BF_ST_MEM_ERROR. - */ -static int __bfdec_round(bfdec_t *r, limb_t prec1, bf_flags_t flags, limb_t l) -{ - int shift, add_one, rnd_mode, ret; - slimb_t i, bit_pos, pos, e_min, e_max, e_range, prec; - - /* XXX: align to IEEE 754 2008 for decimal numbers ? */ - e_range = (limb_t)1 << (bf_get_exp_bits(flags) - 1); - e_min = -e_range + 3; - e_max = e_range; - - if (flags & BF_FLAG_RADPNT_PREC) { - /* 'prec' is the precision after the decimal point */ - if (prec1 != BF_PREC_INF) - prec = r->expn + prec1; - else - prec = prec1; - } else if (unlikely(r->expn < e_min) && (flags & BF_FLAG_SUBNORMAL)) { - /* restrict the precision in case of potentially subnormal - result */ - assert(prec1 != BF_PREC_INF); - prec = prec1 - (e_min - r->expn); - } else { - prec = prec1; - } - - /* round to prec bits */ - rnd_mode = flags & BF_RND_MASK; - ret = 0; - add_one = bfdec_get_rnd_add(&ret, r, l, prec, rnd_mode); - - if (prec <= 0) { - if (add_one) { - bfdec_resize(r, 1); /* cannot fail because r is non zero */ - r->tab[0] = BF_DEC_BASE / 10; - r->expn += 1 - prec; - ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; - return ret; - } else { - goto underflow; - } - } else if (add_one) { - limb_t carry; - - /* add one starting at digit 'prec - 1' */ - bit_pos = l * LIMB_DIGITS - 1 - (prec - 1); - pos = bit_pos / LIMB_DIGITS; - carry = mp_pow_dec[bit_pos % LIMB_DIGITS]; - carry = mp_add_ui_dec(r->tab + pos, carry, l - pos); - if (carry) { - /* shift right by one digit */ - mp_shr_dec(r->tab + pos, r->tab + pos, l - pos, 1, 1); - r->expn++; - } - } - - /* check underflow */ - if (unlikely(r->expn < e_min)) { - if (flags & BF_FLAG_SUBNORMAL) { - /* if inexact, also set the underflow flag */ - if (ret & BF_ST_INEXACT) - ret |= BF_ST_UNDERFLOW; - } else { - underflow: - bfdec_set_zero(r, r->sign); - ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; - return ret; - } - } - - /* check overflow */ - if (unlikely(r->expn > e_max)) { - bfdec_set_inf(r, r->sign); - ret |= BF_ST_OVERFLOW | BF_ST_INEXACT; - return ret; - } - - /* keep the bits starting at 'prec - 1' */ - bit_pos = l * LIMB_DIGITS - 1 - (prec - 1); - i = floor_div(bit_pos, LIMB_DIGITS); - if (i >= 0) { - shift = smod(bit_pos, LIMB_DIGITS); - if (shift != 0) { - r->tab[i] = fast_shr_dec(r->tab[i], shift) * - mp_pow_dec[shift]; - } - } else { - i = 0; - } - /* remove trailing zeros */ - while (r->tab[i] == 0) - i++; - if (i > 0) { - l -= i; - memmove(r->tab, r->tab + i, l * sizeof(limb_t)); - } - bfdec_resize(r, l); /* cannot fail */ - return ret; -} - -/* Cannot fail with BF_ST_MEM_ERROR. */ -int bfdec_round(bfdec_t *r, limb_t prec, bf_flags_t flags) -{ - if (r->len == 0) - return 0; - return __bfdec_round(r, prec, flags, r->len); -} - -/* 'r' must be a finite number. Cannot fail with BF_ST_MEM_ERROR. */ -int bfdec_normalize_and_round(bfdec_t *r, limb_t prec1, bf_flags_t flags) -{ - limb_t l, v; - int shift, ret; - - // bfdec_print_str("bf_renorm", r); - l = r->len; - while (l > 0 && r->tab[l - 1] == 0) - l--; - if (l == 0) { - /* zero */ - r->expn = BF_EXP_ZERO; - bfdec_resize(r, 0); /* cannot fail */ - ret = 0; - } else { - r->expn -= (r->len - l) * LIMB_DIGITS; - /* shift to have the MSB set to '1' */ - v = r->tab[l - 1]; - shift = clz_dec(v); - if (shift != 0) { - mp_shl_dec(r->tab, r->tab, l, shift, 0); - r->expn -= shift; - } - ret = __bfdec_round(r, prec1, flags, l); - } - // bf_print_str("r_final", r); - return ret; -} - -int bfdec_set_ui(bfdec_t *r, uint64_t v) -{ -#if LIMB_BITS == 32 - if (v >= BF_DEC_BASE * BF_DEC_BASE) { - if (bfdec_resize(r, 3)) - goto fail; - r->tab[0] = v % BF_DEC_BASE; - v /= BF_DEC_BASE; - r->tab[1] = v % BF_DEC_BASE; - r->tab[2] = v / BF_DEC_BASE; - r->expn = 3 * LIMB_DIGITS; - } else -#endif - if (v >= BF_DEC_BASE) { - if (bfdec_resize(r, 2)) - goto fail; - r->tab[0] = v % BF_DEC_BASE; - r->tab[1] = v / BF_DEC_BASE; - r->expn = 2 * LIMB_DIGITS; - } else { - if (bfdec_resize(r, 1)) - goto fail; - r->tab[0] = v; - r->expn = LIMB_DIGITS; - } - r->sign = 0; - return bfdec_normalize_and_round(r, BF_PREC_INF, 0); - fail: - bfdec_set_nan(r); - return BF_ST_MEM_ERROR; -} - -int bfdec_set_si(bfdec_t *r, int64_t v) -{ - int ret; - if (v < 0) { - ret = bfdec_set_ui(r, -v); - r->sign = 1; - } else { - ret = bfdec_set_ui(r, v); - } - return ret; -} - -static int bfdec_add_internal(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int b_neg) -{ - bf_context_t *s = r->ctx; - int is_sub, cmp_res, a_sign, b_sign, ret; - - a_sign = a->sign; - b_sign = b->sign ^ b_neg; - is_sub = a_sign ^ b_sign; - cmp_res = bfdec_cmpu(a, b); - if (cmp_res < 0) { - const bfdec_t *tmp; - tmp = a; - a = b; - b = tmp; - a_sign = b_sign; /* b_sign is never used later */ - } - /* abs(a) >= abs(b) */ - if (cmp_res == 0 && is_sub && a->expn < BF_EXP_INF) { - /* zero result */ - bfdec_set_zero(r, (flags & BF_RND_MASK) == BF_RNDD); - ret = 0; - } else if (a->len == 0 || b->len == 0) { - ret = 0; - if (a->expn >= BF_EXP_INF) { - if (a->expn == BF_EXP_NAN) { - /* at least one operand is NaN */ - bfdec_set_nan(r); - ret = 0; - } else if (b->expn == BF_EXP_INF && is_sub) { - /* infinities with different signs */ - bfdec_set_nan(r); - ret = BF_ST_INVALID_OP; - } else { - bfdec_set_inf(r, a_sign); - } - } else { - /* at least one zero and not subtract */ - if (bfdec_set(r, a)) - return BF_ST_MEM_ERROR; - r->sign = a_sign; - goto renorm; - } - } else { - slimb_t d, a_offset, b_offset, i, r_len; - limb_t carry; - limb_t *b1_tab; - int b_shift; - mp_size_t b1_len; - - d = a->expn - b->expn; - - /* XXX: not efficient in time and memory if the precision is - not infinite */ - r_len = bf_max(a->len, b->len + (d + LIMB_DIGITS - 1) / LIMB_DIGITS); - if (bfdec_resize(r, r_len)) - goto fail; - r->sign = a_sign; - r->expn = a->expn; - - a_offset = r_len - a->len; - for(i = 0; i < a_offset; i++) - r->tab[i] = 0; - for(i = 0; i < a->len; i++) - r->tab[a_offset + i] = a->tab[i]; - - b_shift = d % LIMB_DIGITS; - if (b_shift == 0) { - b1_len = b->len; - b1_tab = (limb_t *)b->tab; - } else { - b1_len = b->len + 1; - b1_tab = bf_malloc(s, sizeof(limb_t) * b1_len); - if (!b1_tab) - goto fail; - b1_tab[0] = mp_shr_dec(b1_tab + 1, b->tab, b->len, b_shift, 0) * - mp_pow_dec[LIMB_DIGITS - b_shift]; - } - b_offset = r_len - (b->len + (d + LIMB_DIGITS - 1) / LIMB_DIGITS); - - if (is_sub) { - carry = mp_sub_dec(r->tab + b_offset, r->tab + b_offset, - b1_tab, b1_len, 0); - if (carry != 0) { - carry = mp_sub_ui_dec(r->tab + b_offset + b1_len, carry, - r_len - (b_offset + b1_len)); - assert(carry == 0); - } - } else { - carry = mp_add_dec(r->tab + b_offset, r->tab + b_offset, - b1_tab, b1_len, 0); - if (carry != 0) { - carry = mp_add_ui_dec(r->tab + b_offset + b1_len, carry, - r_len - (b_offset + b1_len)); - } - if (carry != 0) { - if (bfdec_resize(r, r_len + 1)) { - if (b_shift != 0) - bf_free(s, b1_tab); - goto fail; - } - r->tab[r_len] = 1; - r->expn += LIMB_DIGITS; - } - } - if (b_shift != 0) - bf_free(s, b1_tab); - renorm: - ret = bfdec_normalize_and_round(r, prec, flags); - } - return ret; - fail: - bfdec_set_nan(r); - return BF_ST_MEM_ERROR; -} - -static int __bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags) -{ - return bfdec_add_internal(r, a, b, prec, flags, 0); -} - -static int __bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags) -{ - return bfdec_add_internal(r, a, b, prec, flags, 1); -} - -int bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags, - (bf_op2_func_t *)__bfdec_add); -} - -int bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags, - (bf_op2_func_t *)__bfdec_sub); -} - -int bfdec_mul(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags) -{ - int ret, r_sign; - - if (a->len < b->len) { - const bfdec_t *tmp = a; - a = b; - b = tmp; - } - r_sign = a->sign ^ b->sign; - /* here b->len <= a->len */ - if (b->len == 0) { - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - bfdec_set_nan(r); - ret = 0; - } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_INF) { - if ((a->expn == BF_EXP_INF && b->expn == BF_EXP_ZERO) || - (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_INF)) { - bfdec_set_nan(r); - ret = BF_ST_INVALID_OP; - } else { - bfdec_set_inf(r, r_sign); - ret = 0; - } - } else { - bfdec_set_zero(r, r_sign); - ret = 0; - } - } else { - bfdec_t tmp, *r1 = NULL; - limb_t a_len, b_len; - limb_t *a_tab, *b_tab; - - a_len = a->len; - b_len = b->len; - a_tab = a->tab; - b_tab = b->tab; - - if (r == a || r == b) { - bfdec_init(r->ctx, &tmp); - r1 = r; - r = &tmp; - } - if (bfdec_resize(r, a_len + b_len)) { - bfdec_set_nan(r); - ret = BF_ST_MEM_ERROR; - goto done; - } - mp_mul_basecase_dec(r->tab, a_tab, a_len, b_tab, b_len); - r->sign = r_sign; - r->expn = a->expn + b->expn; - ret = bfdec_normalize_and_round(r, prec, flags); - done: - if (r == &tmp) - bfdec_move(r1, &tmp); - } - return ret; -} - -int bfdec_mul_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, - bf_flags_t flags) -{ - bfdec_t b; - int ret; - bfdec_init(r->ctx, &b); - ret = bfdec_set_si(&b, b1); - ret |= bfdec_mul(r, a, &b, prec, flags); - bfdec_delete(&b); - return ret; -} - -int bfdec_add_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, - bf_flags_t flags) -{ - bfdec_t b; - int ret; - - bfdec_init(r->ctx, &b); - ret = bfdec_set_si(&b, b1); - ret |= bfdec_add(r, a, &b, prec, flags); - bfdec_delete(&b); - return ret; -} - -static int __bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, - limb_t prec, bf_flags_t flags) -{ - int ret, r_sign; - limb_t n, nb, precl; - - r_sign = a->sign ^ b->sign; - if (a->expn >= BF_EXP_INF || b->expn >= BF_EXP_INF) { - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - bfdec_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF && b->expn == BF_EXP_INF) { - bfdec_set_nan(r); - return BF_ST_INVALID_OP; - } else if (a->expn == BF_EXP_INF) { - bfdec_set_inf(r, r_sign); - return 0; - } else { - bfdec_set_zero(r, r_sign); - return 0; - } - } else if (a->expn == BF_EXP_ZERO) { - if (b->expn == BF_EXP_ZERO) { - bfdec_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bfdec_set_zero(r, r_sign); - return 0; - } - } else if (b->expn == BF_EXP_ZERO) { - bfdec_set_inf(r, r_sign); - return BF_ST_DIVIDE_ZERO; - } - - nb = b->len; - if (prec == BF_PREC_INF) { - /* infinite precision: return BF_ST_INVALID_OP if not an exact - result */ - /* XXX: check */ - precl = nb + 1; - } else if (flags & BF_FLAG_RADPNT_PREC) { - /* number of digits after the decimal point */ - /* XXX: check (2 extra digits for rounding + 2 digits) */ - precl = (bf_max(a->expn - b->expn, 0) + 2 + - prec + 2 + LIMB_DIGITS - 1) / LIMB_DIGITS; - } else { - /* number of limbs of the quotient (2 extra digits for rounding) */ - precl = (prec + 2 + LIMB_DIGITS - 1) / LIMB_DIGITS; - } - n = bf_max(a->len, precl); - - { - limb_t *taba, na, i; - slimb_t d; - - na = n + nb; - taba = bf_malloc(r->ctx, (na + 1) * sizeof(limb_t)); - if (!taba) - goto fail; - d = na - a->len; - memset(taba, 0, d * sizeof(limb_t)); - memcpy(taba + d, a->tab, a->len * sizeof(limb_t)); - if (bfdec_resize(r, n + 1)) - goto fail1; - if (mp_div_dec(r->ctx, r->tab, taba, na, b->tab, nb)) { - fail1: - bf_free(r->ctx, taba); - goto fail; - } - /* see if non zero remainder */ - for(i = 0; i < nb; i++) { - if (taba[i] != 0) - break; - } - bf_free(r->ctx, taba); - if (i != nb) { - if (prec == BF_PREC_INF) { - bfdec_set_nan(r); - return BF_ST_INVALID_OP; - } else { - r->tab[0] |= 1; - } - } - r->expn = a->expn - b->expn + LIMB_DIGITS; - r->sign = r_sign; - ret = bfdec_normalize_and_round(r, prec, flags); - } - return ret; - fail: - bfdec_set_nan(r); - return BF_ST_MEM_ERROR; -} - -int bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags) -{ - return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags, - (bf_op2_func_t *)__bfdec_div); -} - -/* a and b must be finite numbers with a >= 0 and b > 0. 'q' is the - integer defined as floor(a/b) and r = a - q * b. */ -static void bfdec_tdivremu(bf_context_t *s, bfdec_t *q, bfdec_t *r, - const bfdec_t *a, const bfdec_t *b) -{ - if (bfdec_cmpu(a, b) < 0) { - bfdec_set_ui(q, 0); - bfdec_set(r, a); - } else { - bfdec_div(q, a, b, 0, BF_RNDZ | BF_FLAG_RADPNT_PREC); - bfdec_mul(r, q, b, BF_PREC_INF, BF_RNDZ); - bfdec_sub(r, a, r, BF_PREC_INF, BF_RNDZ); - } -} - -/* division and remainder. - - rnd_mode is the rounding mode for the quotient. The additional - rounding mode BF_RND_EUCLIDIAN is supported. - - 'q' is an integer. 'r' is rounded with prec and flags (prec can be - BF_PREC_INF). -*/ -int bfdec_divrem(bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b, - limb_t prec, bf_flags_t flags, int rnd_mode) -{ - bf_context_t *s = q->ctx; - bfdec_t a1_s, *a1 = &a1_s; - bfdec_t b1_s, *b1 = &b1_s; - bfdec_t r1_s, *r1 = &r1_s; - int q_sign, res; - BOOL is_ceil, is_rndn; - - assert(q != a && q != b); - assert(r != a && r != b); - assert(q != r); - - if (a->len == 0 || b->len == 0) { - bfdec_set_zero(q, 0); - if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { - bfdec_set_nan(r); - return 0; - } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_ZERO) { - bfdec_set_nan(r); - return BF_ST_INVALID_OP; - } else { - bfdec_set(r, a); - return bfdec_round(r, prec, flags); - } - } - - q_sign = a->sign ^ b->sign; - is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA); - switch(rnd_mode) { - default: - case BF_RNDZ: - case BF_RNDN: - case BF_RNDNA: - is_ceil = FALSE; - break; - case BF_RNDD: - is_ceil = q_sign; - break; - case BF_RNDU: - is_ceil = q_sign ^ 1; - break; - case BF_RNDA: - is_ceil = TRUE; - break; - case BF_DIVREM_EUCLIDIAN: - is_ceil = a->sign; - break; - } - - a1->expn = a->expn; - a1->tab = a->tab; - a1->len = a->len; - a1->sign = 0; - - b1->expn = b->expn; - b1->tab = b->tab; - b1->len = b->len; - b1->sign = 0; - - // bfdec_print_str("a1", a1); - // bfdec_print_str("b1", b1); - /* XXX: could improve to avoid having a large 'q' */ - bfdec_tdivremu(s, q, r, a1, b1); - if (bfdec_is_nan(q) || bfdec_is_nan(r)) - goto fail; - // bfdec_print_str("q", q); - // bfdec_print_str("r", r); - - if (r->len != 0) { - if (is_rndn) { - bfdec_init(s, r1); - if (bfdec_set(r1, r)) - goto fail; - if (bfdec_mul_si(r1, r1, 2, BF_PREC_INF, BF_RNDZ)) { - bfdec_delete(r1); - goto fail; - } - res = bfdec_cmpu(r1, b); - bfdec_delete(r1); - if (res > 0 || - (res == 0 && - (rnd_mode == BF_RNDNA || - (get_digit(q->tab, q->len, q->len * LIMB_DIGITS - q->expn) & 1) != 0))) { - goto do_sub_r; - } - } else if (is_ceil) { - do_sub_r: - res = bfdec_add_si(q, q, 1, BF_PREC_INF, BF_RNDZ); - res |= bfdec_sub(r, r, b1, BF_PREC_INF, BF_RNDZ); - if (res & BF_ST_MEM_ERROR) - goto fail; - } - } - - r->sign ^= a->sign; - q->sign = q_sign; - return bfdec_round(r, prec, flags); - fail: - bfdec_set_nan(q); - bfdec_set_nan(r); - return BF_ST_MEM_ERROR; -} - -int bfdec_rem(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags, int rnd_mode) -{ - bfdec_t q_s, *q = &q_s; - int ret; - - bfdec_init(r->ctx, q); - ret = bfdec_divrem(q, r, a, b, prec, flags, rnd_mode); - bfdec_delete(q); - return ret; -} - -/* convert to integer (infinite precision) */ -int bfdec_rint(bfdec_t *r, int rnd_mode) -{ - return bfdec_round(r, 0, rnd_mode | BF_FLAG_RADPNT_PREC); -} - -int bfdec_sqrt(bfdec_t *r, const bfdec_t *a, limb_t prec, bf_flags_t flags) -{ - bf_context_t *s = a->ctx; - int ret, k; - limb_t *a1, v; - slimb_t n, n1, prec1; - limb_t res; - - assert(r != a); - - if (a->len == 0) { - if (a->expn == BF_EXP_NAN) { - bfdec_set_nan(r); - } else if (a->expn == BF_EXP_INF && a->sign) { - goto invalid_op; - } else { - bfdec_set(r, a); - } - ret = 0; - } else if (a->sign || prec == BF_PREC_INF) { - invalid_op: - bfdec_set_nan(r); - ret = BF_ST_INVALID_OP; - } else { - if (flags & BF_FLAG_RADPNT_PREC) { - prec1 = bf_max(floor_div(a->expn + 1, 2) + prec, 1); - } else { - prec1 = prec; - } - /* convert the mantissa to an integer with at least 2 * - prec + 4 digits */ - n = (2 * (prec1 + 2) + 2 * LIMB_DIGITS - 1) / (2 * LIMB_DIGITS); - if (bfdec_resize(r, n)) - goto fail; - a1 = bf_malloc(s, sizeof(limb_t) * 2 * n); - if (!a1) - goto fail; - n1 = bf_min(2 * n, a->len); - memset(a1, 0, (2 * n - n1) * sizeof(limb_t)); - memcpy(a1 + 2 * n - n1, a->tab + a->len - n1, n1 * sizeof(limb_t)); - if (a->expn & 1) { - res = mp_shr_dec(a1, a1, 2 * n, 1, 0); - } else { - res = 0; - } - /* normalize so that a1 >= B^(2*n)/4. Not need for n = 1 - because mp_sqrtrem2_dec already does it */ - k = 0; - if (n > 1) { - v = a1[2 * n - 1]; - while (v < BF_DEC_BASE / 4) { - k++; - v *= 4; - } - if (k != 0) - mp_mul1_dec(a1, a1, 2 * n, 1 << (2 * k), 0); - } - if (mp_sqrtrem_dec(s, r->tab, a1, n)) { - bf_free(s, a1); - goto fail; - } - if (k != 0) - mp_div1_dec(r->tab, r->tab, n, 1 << k, 0); - if (!res) { - res = mp_scan_nz(a1, n + 1); - } - bf_free(s, a1); - if (!res) { - res = mp_scan_nz(a->tab, a->len - n1); - } - if (res != 0) - r->tab[0] |= 1; - r->sign = 0; - r->expn = (a->expn + 1) >> 1; - ret = bfdec_round(r, prec, flags); - } - return ret; - fail: - bfdec_set_nan(r); - return BF_ST_MEM_ERROR; -} - -/* The rounding mode is always BF_RNDZ. Return BF_ST_OVERFLOW if there - is an overflow and 0 otherwise. No memory error is possible. */ -int bfdec_get_int32(int *pres, const bfdec_t *a) -{ - uint32_t v; - int ret; - if (a->expn >= BF_EXP_INF) { - ret = 0; - if (a->expn == BF_EXP_INF) { - v = (uint32_t)INT32_MAX + a->sign; - /* XXX: return overflow ? */ - } else { - v = INT32_MAX; - } - } else if (a->expn <= 0) { - v = 0; - ret = 0; - } else if (a->expn <= 9) { - v = fast_shr_dec(a->tab[a->len - 1], LIMB_DIGITS - a->expn); - if (a->sign) - v = -v; - ret = 0; - } else if (a->expn == 10) { - uint64_t v1; - uint32_t v_max; -#if LIMB_BITS == 64 - v1 = fast_shr_dec(a->tab[a->len - 1], LIMB_DIGITS - a->expn); -#else - v1 = (uint64_t)a->tab[a->len - 1] * 10 + - get_digit(a->tab, a->len, (a->len - 1) * LIMB_DIGITS - 1); -#endif - v_max = (uint32_t)INT32_MAX + a->sign; - if (v1 > v_max) { - v = v_max; - ret = BF_ST_OVERFLOW; - } else { - v = v1; - if (a->sign) - v = -v; - ret = 0; - } - } else { - v = (uint32_t)INT32_MAX + a->sign; - ret = BF_ST_OVERFLOW; - } - *pres = v; - return ret; -} - -/* power to an integer with infinite precision */ -int bfdec_pow_ui(bfdec_t *r, const bfdec_t *a, limb_t b) -{ - int ret, n_bits, i; - - assert(r != a); - if (b == 0) - return bfdec_set_ui(r, 1); - ret = bfdec_set(r, a); - n_bits = LIMB_BITS - clz(b); - for(i = n_bits - 2; i >= 0; i--) { - ret |= bfdec_mul(r, r, r, BF_PREC_INF, BF_RNDZ); - if ((b >> i) & 1) - ret |= bfdec_mul(r, r, a, BF_PREC_INF, BF_RNDZ); - } - return ret; -} - -char *bfdec_ftoa(size_t *plen, const bfdec_t *a, limb_t prec, bf_flags_t flags) -{ - return bf_ftoa_internal(plen, (const bf_t *)a, 10, prec, flags, TRUE); -} - -int bfdec_atof(bfdec_t *r, const char *str, const char **pnext, - limb_t prec, bf_flags_t flags) -{ - slimb_t dummy_exp; - return bf_atof_internal((bf_t *)r, &dummy_exp, str, pnext, 10, prec, - flags, TRUE); -} - -#endif /* USE_BF_DEC */ - -#ifdef USE_FFT_MUL -/***************************************************************/ -/* Integer multiplication with FFT */ - -/* or LIMB_BITS at bit position 'pos' in tab */ -static inline void put_bits(limb_t *tab, limb_t len, slimb_t pos, limb_t val) -{ - limb_t i; - int p; - - i = pos >> LIMB_LOG2_BITS; - p = pos & (LIMB_BITS - 1); - if (i < len) - tab[i] |= val << p; - if (p != 0) { - i++; - if (i < len) { - tab[i] |= val >> (LIMB_BITS - p); - } - } -} - -#if defined(__AVX2__) - -typedef double NTTLimb; - -/* we must have: modulo >= 1 << NTT_MOD_LOG2_MIN */ -#define NTT_MOD_LOG2_MIN 50 -#define NTT_MOD_LOG2_MAX 51 -#define NB_MODS 5 -#define NTT_PROOT_2EXP 39 -static const int ntt_int_bits[NB_MODS] = { 254, 203, 152, 101, 50, }; - -static const limb_t ntt_mods[NB_MODS] = { 0x00073a8000000001, 0x0007858000000001, 0x0007a38000000001, 0x0007a68000000001, 0x0007fd8000000001, -}; - -static const limb_t ntt_proot[2][NB_MODS] = { - { 0x00056198d44332c8, 0x0002eb5d640aad39, 0x00047e31eaa35fd0, 0x0005271ac118a150, 0x00075e0ce8442bd5, }, - { 0x000461169761bcc5, 0x0002dac3cb2da688, 0x0004abc97751e3bf, 0x000656778fc8c485, 0x0000dc6469c269fa, }, -}; - -static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = { - 0x00020e4da740da8e, 0x0004c3dc09c09c1d, 0x000063bd097b4271, 0x000799d8f18f18fd, - 0x0005384222222264, 0x000572b07c1f07fe, 0x00035cd08888889a, - 0x00066015555557e3, 0x000725960b60b623, - 0x0002fc1fa1d6ce12, -}; - -#else - -typedef limb_t NTTLimb; - -#if LIMB_BITS == 64 - -#define NTT_MOD_LOG2_MIN 61 -#define NTT_MOD_LOG2_MAX 62 -#define NB_MODS 5 -#define NTT_PROOT_2EXP 51 -static const int ntt_int_bits[NB_MODS] = { 307, 246, 185, 123, 61, }; - -static const limb_t ntt_mods[NB_MODS] = { 0x28d8000000000001, 0x2a88000000000001, 0x2ed8000000000001, 0x3508000000000001, 0x3aa8000000000001, -}; - -static const limb_t ntt_proot[2][NB_MODS] = { - { 0x1b8ea61034a2bea7, 0x21a9762de58206fb, 0x02ca782f0756a8ea, 0x278384537a3e50a1, 0x106e13fee74ce0ab, }, - { 0x233513af133e13b8, 0x1d13140d1c6f75f1, 0x12cde57f97e3eeda, 0x0d6149e23cbe654f, 0x36cd204f522a1379, }, -}; - -static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = { - 0x08a9ed097b425eea, 0x18a44aaaaaaaaab3, 0x2493f57f57f57f5d, 0x126b8d0649a7f8d4, - 0x09d80ed7303b5ccc, 0x25b8bcf3cf3cf3d5, 0x2ce6ce63398ce638, - 0x0e31fad40a57eb59, 0x02a3529fd4a7f52f, - 0x3a5493e93e93e94a, -}; - -#elif LIMB_BITS == 32 - -/* we must have: modulo >= 1 << NTT_MOD_LOG2_MIN */ -#define NTT_MOD_LOG2_MIN 29 -#define NTT_MOD_LOG2_MAX 30 -#define NB_MODS 5 -#define NTT_PROOT_2EXP 20 -static const int ntt_int_bits[NB_MODS] = { 148, 119, 89, 59, 29, }; - -static const limb_t ntt_mods[NB_MODS] = { 0x0000000032b00001, 0x0000000033700001, 0x0000000036d00001, 0x0000000037300001, 0x000000003e500001, -}; - -static const limb_t ntt_proot[2][NB_MODS] = { - { 0x0000000032525f31, 0x0000000005eb3b37, 0x00000000246eda9f, 0x0000000035f25901, 0x00000000022f5768, }, - { 0x00000000051eba1a, 0x00000000107be10e, 0x000000001cd574e0, 0x00000000053806e6, 0x000000002cd6bf98, }, -}; - -static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = { - 0x000000000449559a, 0x000000001eba6ca9, 0x000000002ec18e46, 0x000000000860160b, - 0x000000000d321307, 0x000000000bf51120, 0x000000000f662938, - 0x000000000932ab3e, 0x000000002f40eef8, - 0x000000002e760905, -}; - -#endif /* LIMB_BITS */ - -#endif /* !AVX2 */ - -#if defined(__AVX2__) -#define NTT_TRIG_K_MAX 18 -#else -#define NTT_TRIG_K_MAX 19 -#endif - -typedef struct BFNTTState { - bf_context_t *ctx; - - /* used for mul_mod_fast() */ - limb_t ntt_mods_div[NB_MODS]; - - limb_t ntt_proot_pow[NB_MODS][2][NTT_PROOT_2EXP + 1]; - limb_t ntt_proot_pow_inv[NB_MODS][2][NTT_PROOT_2EXP + 1]; - NTTLimb *ntt_trig[NB_MODS][2][NTT_TRIG_K_MAX + 1]; - /* 1/2^n mod m */ - limb_t ntt_len_inv[NB_MODS][NTT_PROOT_2EXP + 1][2]; -#if defined(__AVX2__) - __m256d ntt_mods_cr_vec[NB_MODS * (NB_MODS - 1) / 2]; - __m256d ntt_mods_vec[NB_MODS]; - __m256d ntt_mods_inv_vec[NB_MODS]; -#else - limb_t ntt_mods_cr_inv[NB_MODS * (NB_MODS - 1) / 2]; -#endif -} BFNTTState; - -static NTTLimb *get_trig(BFNTTState *s, int k, int inverse, int m_idx); - -/* add modulo with up to (LIMB_BITS-1) bit modulo */ -static inline limb_t add_mod(limb_t a, limb_t b, limb_t m) -{ - limb_t r; - r = a + b; - if (r >= m) - r -= m; - return r; -} - -/* sub modulo with up to LIMB_BITS bit modulo */ -static inline limb_t sub_mod(limb_t a, limb_t b, limb_t m) -{ - limb_t r; - r = a - b; - if (r > a) - r += m; - return r; -} - -/* return (r0+r1*B) mod m - precondition: 0 <= r0+r1*B < 2^(64+NTT_MOD_LOG2_MIN) -*/ -static inline limb_t mod_fast(dlimb_t r, - limb_t m, limb_t m_inv) -{ - limb_t a1, q, t0, r1, r0; - - a1 = r >> NTT_MOD_LOG2_MIN; - - q = ((dlimb_t)a1 * m_inv) >> LIMB_BITS; - r = r - (dlimb_t)q * m - m * 2; - r1 = r >> LIMB_BITS; - t0 = (slimb_t)r1 >> 1; - r += m & t0; - r0 = r; - r1 = r >> LIMB_BITS; - r0 += m & r1; - return r0; -} - -/* faster version using precomputed modulo inverse. - precondition: 0 <= a * b < 2^(64+NTT_MOD_LOG2_MIN) */ -static inline limb_t mul_mod_fast(limb_t a, limb_t b, - limb_t m, limb_t m_inv) -{ - dlimb_t r; - r = (dlimb_t)a * (dlimb_t)b; - return mod_fast(r, m, m_inv); -} - -static inline limb_t init_mul_mod_fast(limb_t m) -{ - dlimb_t t; - assert(m < (limb_t)1 << NTT_MOD_LOG2_MAX); - assert(m >= (limb_t)1 << NTT_MOD_LOG2_MIN); - t = (dlimb_t)1 << (LIMB_BITS + NTT_MOD_LOG2_MIN); - return t / m; -} - -/* Faster version used when the multiplier is constant. 0 <= a < 2^64, - 0 <= b < m. */ -static inline limb_t mul_mod_fast2(limb_t a, limb_t b, - limb_t m, limb_t b_inv) -{ - limb_t r, q; - - q = ((dlimb_t)a * (dlimb_t)b_inv) >> LIMB_BITS; - r = a * b - q * m; - if (r >= m) - r -= m; - return r; -} - -/* Faster version used when the multiplier is constant. 0 <= a < 2^64, - 0 <= b < m. Let r = a * b mod m. The return value is 'r' or 'r + - m'. */ -static inline limb_t mul_mod_fast3(limb_t a, limb_t b, - limb_t m, limb_t b_inv) -{ - limb_t r, q; - - q = ((dlimb_t)a * (dlimb_t)b_inv) >> LIMB_BITS; - r = a * b - q * m; - return r; -} - -static inline limb_t init_mul_mod_fast2(limb_t b, limb_t m) -{ - return ((dlimb_t)b << LIMB_BITS) / m; -} - -#ifdef __AVX2__ - -static inline limb_t ntt_limb_to_int(NTTLimb a, limb_t m) -{ - slimb_t v; - v = a; - if (v < 0) - v += m; - if (v >= m) - v -= m; - return v; -} - -static inline NTTLimb int_to_ntt_limb(limb_t a, limb_t m) -{ - return (slimb_t)a; -} - -static inline NTTLimb int_to_ntt_limb2(limb_t a, limb_t m) -{ - if (a >= (m / 2)) - a -= m; - return (slimb_t)a; -} - -/* return r + m if r < 0 otherwise r. */ -static inline __m256d ntt_mod1(__m256d r, __m256d m) -{ - return _mm256_blendv_pd(r, r + m, r); -} - -/* input: abs(r) < 2 * m. Output: abs(r) < m */ -static inline __m256d ntt_mod(__m256d r, __m256d mf, __m256d m2f) -{ - return _mm256_blendv_pd(r, r + m2f, r) - mf; -} - -/* input: abs(a*b) < 2 * m^2, output: abs(r) < m */ -static inline __m256d ntt_mul_mod(__m256d a, __m256d b, __m256d mf, - __m256d m_inv) -{ - __m256d r, q, ab1, ab0, qm0, qm1; - ab1 = a * b; - q = _mm256_round_pd(ab1 * m_inv, 0); /* round to nearest */ - qm1 = q * mf; - qm0 = _mm256_fmsub_pd(q, mf, qm1); /* low part */ - ab0 = _mm256_fmsub_pd(a, b, ab1); /* low part */ - r = (ab1 - qm1) + (ab0 - qm0); - return r; -} - -static void *bf_aligned_malloc(bf_context_t *s, size_t size, size_t align) -{ - void *ptr; - void **ptr1; - ptr = bf_malloc(s, size + sizeof(void *) + align - 1); - if (!ptr) - return NULL; - ptr1 = (void **)(((uintptr_t)ptr + sizeof(void *) + align - 1) & - ~(align - 1)); - ptr1[-1] = ptr; - return ptr1; -} - -static void bf_aligned_free(bf_context_t *s, void *ptr) -{ - if (!ptr) - return; - bf_free(s, ((void **)ptr)[-1]); -} - -static void *ntt_malloc(BFNTTState *s, size_t size) -{ - return bf_aligned_malloc(s->ctx, size, 64); -} - -static void ntt_free(BFNTTState *s, void *ptr) -{ - bf_aligned_free(s->ctx, ptr); -} - -static no_inline int ntt_fft(BFNTTState *s, - NTTLimb *out_buf, NTTLimb *in_buf, - NTTLimb *tmp_buf, int fft_len_log2, - int inverse, int m_idx) -{ - limb_t nb_blocks, fft_per_block, p, k, n, stride_in, i, j; - NTTLimb *tab_in, *tab_out, *tmp, *trig; - __m256d m_inv, mf, m2f, c, a0, a1, b0, b1; - limb_t m; - int l; - - m = ntt_mods[m_idx]; - - m_inv = _mm256_set1_pd(1.0 / (double)m); - mf = _mm256_set1_pd(m); - m2f = _mm256_set1_pd(m * 2); - - n = (limb_t)1 << fft_len_log2; - assert(n >= 8); - stride_in = n / 2; - - tab_in = in_buf; - tab_out = tmp_buf; - trig = get_trig(s, fft_len_log2, inverse, m_idx); - if (!trig) - return -1; - p = 0; - for(k = 0; k < stride_in; k += 4) { - a0 = _mm256_load_pd(&tab_in[k]); - a1 = _mm256_load_pd(&tab_in[k + stride_in]); - c = _mm256_load_pd(trig); - trig += 4; - b0 = ntt_mod(a0 + a1, mf, m2f); - b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv); - a0 = _mm256_permute2f128_pd(b0, b1, 0x20); - a1 = _mm256_permute2f128_pd(b0, b1, 0x31); - a0 = _mm256_permute4x64_pd(a0, 0xd8); - a1 = _mm256_permute4x64_pd(a1, 0xd8); - _mm256_store_pd(&tab_out[p], a0); - _mm256_store_pd(&tab_out[p + 4], a1); - p += 2 * 4; - } - tmp = tab_in; - tab_in = tab_out; - tab_out = tmp; - - trig = get_trig(s, fft_len_log2 - 1, inverse, m_idx); - if (!trig) - return -1; - p = 0; - for(k = 0; k < stride_in; k += 4) { - a0 = _mm256_load_pd(&tab_in[k]); - a1 = _mm256_load_pd(&tab_in[k + stride_in]); - c = _mm256_setr_pd(trig[0], trig[0], trig[1], trig[1]); - trig += 2; - b0 = ntt_mod(a0 + a1, mf, m2f); - b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv); - a0 = _mm256_permute2f128_pd(b0, b1, 0x20); - a1 = _mm256_permute2f128_pd(b0, b1, 0x31); - _mm256_store_pd(&tab_out[p], a0); - _mm256_store_pd(&tab_out[p + 4], a1); - p += 2 * 4; - } - tmp = tab_in; - tab_in = tab_out; - tab_out = tmp; - - nb_blocks = n / 4; - fft_per_block = 4; - - l = fft_len_log2 - 2; - while (nb_blocks != 2) { - nb_blocks >>= 1; - p = 0; - k = 0; - trig = get_trig(s, l, inverse, m_idx); - if (!trig) - return -1; - for(i = 0; i < nb_blocks; i++) { - c = _mm256_set1_pd(trig[0]); - trig++; - for(j = 0; j < fft_per_block; j += 4) { - a0 = _mm256_load_pd(&tab_in[k + j]); - a1 = _mm256_load_pd(&tab_in[k + j + stride_in]); - b0 = ntt_mod(a0 + a1, mf, m2f); - b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv); - _mm256_store_pd(&tab_out[p + j], b0); - _mm256_store_pd(&tab_out[p + j + fft_per_block], b1); - } - k += fft_per_block; - p += 2 * fft_per_block; - } - fft_per_block <<= 1; - l--; - tmp = tab_in; - tab_in = tab_out; - tab_out = tmp; - } - - tab_out = out_buf; - for(k = 0; k < stride_in; k += 4) { - a0 = _mm256_load_pd(&tab_in[k]); - a1 = _mm256_load_pd(&tab_in[k + stride_in]); - b0 = ntt_mod(a0 + a1, mf, m2f); - b1 = ntt_mod(a0 - a1, mf, m2f); - _mm256_store_pd(&tab_out[k], b0); - _mm256_store_pd(&tab_out[k + stride_in], b1); - } - return 0; -} - -static void ntt_vec_mul(BFNTTState *s, - NTTLimb *tab1, NTTLimb *tab2, limb_t fft_len_log2, - int k_tot, int m_idx) -{ - limb_t i, c_inv, n, m; - __m256d m_inv, mf, a, b, c; - - m = ntt_mods[m_idx]; - c_inv = s->ntt_len_inv[m_idx][k_tot][0]; - m_inv = _mm256_set1_pd(1.0 / (double)m); - mf = _mm256_set1_pd(m); - c = _mm256_set1_pd(int_to_ntt_limb(c_inv, m)); - n = (limb_t)1 << fft_len_log2; - for(i = 0; i < n; i += 4) { - a = _mm256_load_pd(&tab1[i]); - b = _mm256_load_pd(&tab2[i]); - a = ntt_mul_mod(a, b, mf, m_inv); - a = ntt_mul_mod(a, c, mf, m_inv); - _mm256_store_pd(&tab1[i], a); - } -} - -static no_inline void mul_trig(NTTLimb *buf, - limb_t n, limb_t c1, limb_t m, limb_t m_inv1) -{ - limb_t i, c2, c3, c4; - __m256d c, c_mul, a0, mf, m_inv; - assert(n >= 2); - - mf = _mm256_set1_pd(m); - m_inv = _mm256_set1_pd(1.0 / (double)m); - - c2 = mul_mod_fast(c1, c1, m, m_inv1); - c3 = mul_mod_fast(c2, c1, m, m_inv1); - c4 = mul_mod_fast(c2, c2, m, m_inv1); - c = _mm256_setr_pd(1, int_to_ntt_limb(c1, m), - int_to_ntt_limb(c2, m), int_to_ntt_limb(c3, m)); - c_mul = _mm256_set1_pd(int_to_ntt_limb(c4, m)); - for(i = 0; i < n; i += 4) { - a0 = _mm256_load_pd(&buf[i]); - a0 = ntt_mul_mod(a0, c, mf, m_inv); - _mm256_store_pd(&buf[i], a0); - c = ntt_mul_mod(c, c_mul, mf, m_inv); - } -} - -#else - -static void *ntt_malloc(BFNTTState *s, size_t size) -{ - return bf_malloc(s->ctx, size); -} - -static void ntt_free(BFNTTState *s, void *ptr) -{ - bf_free(s->ctx, ptr); -} - -static inline limb_t ntt_limb_to_int(NTTLimb a, limb_t m) -{ - if (a >= m) - a -= m; - return a; -} - -static inline NTTLimb int_to_ntt_limb(slimb_t a, limb_t m) -{ - return a; -} - -static no_inline int ntt_fft(BFNTTState *s, NTTLimb *out_buf, NTTLimb *in_buf, - NTTLimb *tmp_buf, int fft_len_log2, - int inverse, int m_idx) -{ - limb_t nb_blocks, fft_per_block, p, k, n, stride_in, i, j, m, m2; - NTTLimb *tab_in, *tab_out, *tmp, a0, a1, b0, b1, c, *trig, c_inv; - int l; - - m = ntt_mods[m_idx]; - m2 = 2 * m; - n = (limb_t)1 << fft_len_log2; - nb_blocks = n; - fft_per_block = 1; - stride_in = n / 2; - tab_in = in_buf; - tab_out = tmp_buf; - l = fft_len_log2; - while (nb_blocks != 2) { - nb_blocks >>= 1; - p = 0; - k = 0; - trig = get_trig(s, l, inverse, m_idx); - if (!trig) - return -1; - for(i = 0; i < nb_blocks; i++) { - c = trig[0]; - c_inv = trig[1]; - trig += 2; - for(j = 0; j < fft_per_block; j++) { - a0 = tab_in[k + j]; - a1 = tab_in[k + j + stride_in]; - b0 = add_mod(a0, a1, m2); - b1 = a0 - a1 + m2; - b1 = mul_mod_fast3(b1, c, m, c_inv); - tab_out[p + j] = b0; - tab_out[p + j + fft_per_block] = b1; - } - k += fft_per_block; - p += 2 * fft_per_block; - } - fft_per_block <<= 1; - l--; - tmp = tab_in; - tab_in = tab_out; - tab_out = tmp; - } - /* no twiddle in last step */ - tab_out = out_buf; - for(k = 0; k < stride_in; k++) { - a0 = tab_in[k]; - a1 = tab_in[k + stride_in]; - b0 = add_mod(a0, a1, m2); - b1 = sub_mod(a0, a1, m2); - tab_out[k] = b0; - tab_out[k + stride_in] = b1; - } - return 0; -} - -static void ntt_vec_mul(BFNTTState *s, - NTTLimb *tab1, NTTLimb *tab2, int fft_len_log2, - int k_tot, int m_idx) -{ - limb_t i, norm, norm_inv, a, n, m, m_inv; - - m = ntt_mods[m_idx]; - m_inv = s->ntt_mods_div[m_idx]; - norm = s->ntt_len_inv[m_idx][k_tot][0]; - norm_inv = s->ntt_len_inv[m_idx][k_tot][1]; - n = (limb_t)1 << fft_len_log2; - for(i = 0; i < n; i++) { - a = tab1[i]; - /* need to reduce the range so that the product is < - 2^(LIMB_BITS+NTT_MOD_LOG2_MIN) */ - if (a >= m) - a -= m; - a = mul_mod_fast(a, tab2[i], m, m_inv); - a = mul_mod_fast3(a, norm, m, norm_inv); - tab1[i] = a; - } -} - -static no_inline void mul_trig(NTTLimb *buf, - limb_t n, limb_t c_mul, limb_t m, limb_t m_inv) -{ - limb_t i, c0, c_mul_inv; - - c0 = 1; - c_mul_inv = init_mul_mod_fast2(c_mul, m); - for(i = 0; i < n; i++) { - buf[i] = mul_mod_fast(buf[i], c0, m, m_inv); - c0 = mul_mod_fast2(c0, c_mul, m, c_mul_inv); - } -} - -#endif /* !AVX2 */ - -static no_inline NTTLimb *get_trig(BFNTTState *s, - int k, int inverse, int m_idx) -{ - NTTLimb *tab; - limb_t i, n2, c, c_mul, m, c_mul_inv; - - if (k > NTT_TRIG_K_MAX) - return NULL; - - tab = s->ntt_trig[m_idx][inverse][k]; - if (tab) - return tab; - n2 = (limb_t)1 << (k - 1); - m = ntt_mods[m_idx]; -#ifdef __AVX2__ - tab = ntt_malloc(s, sizeof(NTTLimb) * n2); -#else - tab = ntt_malloc(s, sizeof(NTTLimb) * n2 * 2); -#endif - if (!tab) - return NULL; - c = 1; - c_mul = s->ntt_proot_pow[m_idx][inverse][k]; - c_mul_inv = s->ntt_proot_pow_inv[m_idx][inverse][k]; - for(i = 0; i < n2; i++) { -#ifdef __AVX2__ - tab[i] = int_to_ntt_limb2(c, m); -#else - tab[2 * i] = int_to_ntt_limb(c, m); - tab[2 * i + 1] = init_mul_mod_fast2(c, m); -#endif - c = mul_mod_fast2(c, c_mul, m, c_mul_inv); - } - s->ntt_trig[m_idx][inverse][k] = tab; - return tab; -} - -void fft_clear_cache(bf_context_t *s1) -{ - int m_idx, inverse, k; - BFNTTState *s = s1->ntt_state; - if (s) { - for(m_idx = 0; m_idx < NB_MODS; m_idx++) { - for(inverse = 0; inverse < 2; inverse++) { - for(k = 0; k < NTT_TRIG_K_MAX + 1; k++) { - if (s->ntt_trig[m_idx][inverse][k]) { - ntt_free(s, s->ntt_trig[m_idx][inverse][k]); - s->ntt_trig[m_idx][inverse][k] = NULL; - } - } - } - } -#if defined(__AVX2__) - bf_aligned_free(s1, s); -#else - bf_free(s1, s); -#endif - s1->ntt_state = NULL; - } -} - -#define STRIP_LEN 16 - -/* dst = buf1, src = buf2 */ -static int ntt_fft_partial(BFNTTState *s, NTTLimb *buf1, - int k1, int k2, limb_t n1, limb_t n2, int inverse, - limb_t m_idx) -{ - limb_t i, j, c_mul, c0, m, m_inv, strip_len, l; - NTTLimb *buf2, *buf3; - - buf2 = NULL; - buf3 = ntt_malloc(s, sizeof(NTTLimb) * n1); - if (!buf3) - goto fail; - if (k2 == 0) { - if (ntt_fft(s, buf1, buf1, buf3, k1, inverse, m_idx)) - goto fail; - } else { - strip_len = STRIP_LEN; - buf2 = ntt_malloc(s, sizeof(NTTLimb) * n1 * strip_len); - if (!buf2) - goto fail; - m = ntt_mods[m_idx]; - m_inv = s->ntt_mods_div[m_idx]; - c0 = s->ntt_proot_pow[m_idx][inverse][k1 + k2]; - c_mul = 1; - assert((n2 % strip_len) == 0); - for(j = 0; j < n2; j += strip_len) { - for(i = 0; i < n1; i++) { - for(l = 0; l < strip_len; l++) { - buf2[i + l * n1] = buf1[i * n2 + (j + l)]; - } - } - for(l = 0; l < strip_len; l++) { - if (inverse) - mul_trig(buf2 + l * n1, n1, c_mul, m, m_inv); - if (ntt_fft(s, buf2 + l * n1, buf2 + l * n1, buf3, k1, inverse, m_idx)) - goto fail; - if (!inverse) - mul_trig(buf2 + l * n1, n1, c_mul, m, m_inv); - c_mul = mul_mod_fast(c_mul, c0, m, m_inv); - } - - for(i = 0; i < n1; i++) { - for(l = 0; l < strip_len; l++) { - buf1[i * n2 + (j + l)] = buf2[i + l *n1]; - } - } - } - ntt_free(s, buf2); - } - ntt_free(s, buf3); - return 0; - fail: - ntt_free(s, buf2); - ntt_free(s, buf3); - return -1; -} - - -/* dst = buf1, src = buf2, tmp = buf3 */ -static int ntt_conv(BFNTTState *s, NTTLimb *buf1, NTTLimb *buf2, - int k, int k_tot, limb_t m_idx) -{ - limb_t n1, n2, i; - int k1, k2; - - if (k <= NTT_TRIG_K_MAX) { - k1 = k; - } else { - /* recursive split of the FFT */ - k1 = bf_min(k / 2, NTT_TRIG_K_MAX); - } - k2 = k - k1; - n1 = (limb_t)1 << k1; - n2 = (limb_t)1 << k2; - - if (ntt_fft_partial(s, buf1, k1, k2, n1, n2, 0, m_idx)) - return -1; - if (ntt_fft_partial(s, buf2, k1, k2, n1, n2, 0, m_idx)) - return -1; - if (k2 == 0) { - ntt_vec_mul(s, buf1, buf2, k, k_tot, m_idx); - } else { - for(i = 0; i < n1; i++) { - ntt_conv(s, buf1 + i * n2, buf2 + i * n2, k2, k_tot, m_idx); - } - } - if (ntt_fft_partial(s, buf1, k1, k2, n1, n2, 1, m_idx)) - return -1; - return 0; -} - - -static no_inline void limb_to_ntt(BFNTTState *s, - NTTLimb *tabr, limb_t fft_len, - const limb_t *taba, limb_t a_len, int dpl, - int first_m_idx, int nb_mods) -{ - slimb_t i, n; - dlimb_t a, b; - int j, shift; - limb_t base_mask1, a0, a1, a2, r, m, m_inv; - -#if 0 - for(i = 0; i < a_len; i++) { - printf("%" PRId64 ": " FMT_LIMB "\n", - (int64_t)i, taba[i]); - } -#endif - memset(tabr, 0, sizeof(NTTLimb) * fft_len * nb_mods); - shift = dpl & (LIMB_BITS - 1); - if (shift == 0) - base_mask1 = -1; - else - base_mask1 = ((limb_t)1 << shift) - 1; - n = bf_min(fft_len, (a_len * LIMB_BITS + dpl - 1) / dpl); - for(i = 0; i < n; i++) { - a0 = get_bits(taba, a_len, i * dpl); - if (dpl <= LIMB_BITS) { - a0 &= base_mask1; - a = a0; - } else { - a1 = get_bits(taba, a_len, i * dpl + LIMB_BITS); - if (dpl <= (LIMB_BITS + NTT_MOD_LOG2_MIN)) { - a = a0 | ((dlimb_t)(a1 & base_mask1) << LIMB_BITS); - } else { - if (dpl > 2 * LIMB_BITS) { - a2 = get_bits(taba, a_len, i * dpl + LIMB_BITS * 2) & - base_mask1; - } else { - a1 &= base_mask1; - a2 = 0; - } - // printf("a=0x%016lx%016lx%016lx\n", a2, a1, a0); - a = (a0 >> (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) | - ((dlimb_t)a1 << (NTT_MOD_LOG2_MAX - NTT_MOD_LOG2_MIN)) | - ((dlimb_t)a2 << (LIMB_BITS + NTT_MOD_LOG2_MAX - NTT_MOD_LOG2_MIN)); - a0 &= ((limb_t)1 << (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) - 1; - } - } - for(j = 0; j < nb_mods; j++) { - m = ntt_mods[first_m_idx + j]; - m_inv = s->ntt_mods_div[first_m_idx + j]; - r = mod_fast(a, m, m_inv); - if (dpl > (LIMB_BITS + NTT_MOD_LOG2_MIN)) { - b = ((dlimb_t)r << (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) | a0; - r = mod_fast(b, m, m_inv); - } - tabr[i + j * fft_len] = int_to_ntt_limb(r, m); - } - } -} - -#if defined(__AVX2__) - -#define VEC_LEN 4 - -typedef union { - __m256d v; - double d[4]; -} VecUnion; - -static no_inline void ntt_to_limb(BFNTTState *s, limb_t *tabr, limb_t r_len, - const NTTLimb *buf, int fft_len_log2, int dpl, - int nb_mods) -{ - const limb_t *mods = ntt_mods + NB_MODS - nb_mods; - const __m256d *mods_cr_vec, *mf, *m_inv; - VecUnion y[NB_MODS]; - limb_t u[NB_MODS], carry[NB_MODS], fft_len, base_mask1, r; - slimb_t i, len, pos; - int j, k, l, shift, n_limb1, p; - dlimb_t t; - - j = NB_MODS * (NB_MODS - 1) / 2 - nb_mods * (nb_mods - 1) / 2; - mods_cr_vec = s->ntt_mods_cr_vec + j; - mf = s->ntt_mods_vec + NB_MODS - nb_mods; - m_inv = s->ntt_mods_inv_vec + NB_MODS - nb_mods; - - shift = dpl & (LIMB_BITS - 1); - if (shift == 0) - base_mask1 = -1; - else - base_mask1 = ((limb_t)1 << shift) - 1; - n_limb1 = ((unsigned)dpl - 1) / LIMB_BITS; - for(j = 0; j < NB_MODS; j++) - carry[j] = 0; - for(j = 0; j < NB_MODS; j++) - u[j] = 0; /* avoid warnings */ - memset(tabr, 0, sizeof(limb_t) * r_len); - fft_len = (limb_t)1 << fft_len_log2; - len = bf_min(fft_len, (r_len * LIMB_BITS + dpl - 1) / dpl); - len = (len + VEC_LEN - 1) & ~(VEC_LEN - 1); - i = 0; - while (i < len) { - for(j = 0; j < nb_mods; j++) - y[j].v = *(__m256d *)&buf[i + fft_len * j]; - - /* Chinese remainder to get mixed radix representation */ - l = 0; - for(j = 0; j < nb_mods - 1; j++) { - y[j].v = ntt_mod1(y[j].v, mf[j]); - for(k = j + 1; k < nb_mods; k++) { - y[k].v = ntt_mul_mod(y[k].v - y[j].v, - mods_cr_vec[l], mf[k], m_inv[k]); - l++; - } - } - y[j].v = ntt_mod1(y[j].v, mf[j]); - - for(p = 0; p < VEC_LEN; p++) { - /* back to normal representation */ - u[0] = (int64_t)y[nb_mods - 1].d[p]; - l = 1; - for(j = nb_mods - 2; j >= 1; j--) { - r = (int64_t)y[j].d[p]; - for(k = 0; k < l; k++) { - t = (dlimb_t)u[k] * mods[j] + r; - r = t >> LIMB_BITS; - u[k] = t; - } - u[l] = r; - l++; - } - /* XXX: for nb_mods = 5, l should be 4 */ - - /* last step adds the carry */ - r = (int64_t)y[0].d[p]; - for(k = 0; k < l; k++) { - t = (dlimb_t)u[k] * mods[j] + r + carry[k]; - r = t >> LIMB_BITS; - u[k] = t; - } - u[l] = r + carry[l]; - -#if 0 - printf("%" PRId64 ": ", i); - for(j = nb_mods - 1; j >= 0; j--) { - printf(" %019" PRIu64, u[j]); - } - printf("\n"); -#endif - - /* write the digits */ - pos = i * dpl; - for(j = 0; j < n_limb1; j++) { - put_bits(tabr, r_len, pos, u[j]); - pos += LIMB_BITS; - } - put_bits(tabr, r_len, pos, u[n_limb1] & base_mask1); - /* shift by dpl digits and set the carry */ - if (shift == 0) { - for(j = n_limb1 + 1; j < nb_mods; j++) - carry[j - (n_limb1 + 1)] = u[j]; - } else { - for(j = n_limb1; j < nb_mods - 1; j++) { - carry[j - n_limb1] = (u[j] >> shift) | - (u[j + 1] << (LIMB_BITS - shift)); - } - carry[nb_mods - 1 - n_limb1] = u[nb_mods - 1] >> shift; - } - i++; - } - } -} -#else -static no_inline void ntt_to_limb(BFNTTState *s, limb_t *tabr, limb_t r_len, - const NTTLimb *buf, int fft_len_log2, int dpl, - int nb_mods) -{ - const limb_t *mods = ntt_mods + NB_MODS - nb_mods; - const limb_t *mods_cr, *mods_cr_inv; - limb_t y[NB_MODS], u[NB_MODS], carry[NB_MODS], fft_len, base_mask1, r; - slimb_t i, len, pos; - int j, k, l, shift, n_limb1; - dlimb_t t; - - j = NB_MODS * (NB_MODS - 1) / 2 - nb_mods * (nb_mods - 1) / 2; - mods_cr = ntt_mods_cr + j; - mods_cr_inv = s->ntt_mods_cr_inv + j; - - shift = dpl & (LIMB_BITS - 1); - if (shift == 0) - base_mask1 = -1; - else - base_mask1 = ((limb_t)1 << shift) - 1; - n_limb1 = ((unsigned)dpl - 1) / LIMB_BITS; - for(j = 0; j < NB_MODS; j++) - carry[j] = 0; - for(j = 0; j < NB_MODS; j++) - u[j] = 0; /* avoid warnings */ - memset(tabr, 0, sizeof(limb_t) * r_len); - fft_len = (limb_t)1 << fft_len_log2; - len = bf_min(fft_len, (r_len * LIMB_BITS + dpl - 1) / dpl); - for(i = 0; i < len; i++) { - for(j = 0; j < nb_mods; j++) { - y[j] = ntt_limb_to_int(buf[i + fft_len * j], mods[j]); - } - - /* Chinese remainder to get mixed radix representation */ - l = 0; - for(j = 0; j < nb_mods - 1; j++) { - for(k = j + 1; k < nb_mods; k++) { - limb_t m; - m = mods[k]; - /* Note: there is no overflow in the sub_mod() because - the modulos are sorted by increasing order */ - y[k] = mul_mod_fast2(y[k] - y[j] + m, - mods_cr[l], m, mods_cr_inv[l]); - l++; - } - } - - /* back to normal representation */ - u[0] = y[nb_mods - 1]; - l = 1; - for(j = nb_mods - 2; j >= 1; j--) { - r = y[j]; - for(k = 0; k < l; k++) { - t = (dlimb_t)u[k] * mods[j] + r; - r = t >> LIMB_BITS; - u[k] = t; - } - u[l] = r; - l++; - } - - /* last step adds the carry */ - r = y[0]; - for(k = 0; k < l; k++) { - t = (dlimb_t)u[k] * mods[j] + r + carry[k]; - r = t >> LIMB_BITS; - u[k] = t; - } - u[l] = r + carry[l]; - -#if 0 - printf("%" PRId64 ": ", (int64_t)i); - for(j = nb_mods - 1; j >= 0; j--) { - printf(" " FMT_LIMB, u[j]); - } - printf("\n"); -#endif - - /* write the digits */ - pos = i * dpl; - for(j = 0; j < n_limb1; j++) { - put_bits(tabr, r_len, pos, u[j]); - pos += LIMB_BITS; - } - put_bits(tabr, r_len, pos, u[n_limb1] & base_mask1); - /* shift by dpl digits and set the carry */ - if (shift == 0) { - for(j = n_limb1 + 1; j < nb_mods; j++) - carry[j - (n_limb1 + 1)] = u[j]; - } else { - for(j = n_limb1; j < nb_mods - 1; j++) { - carry[j - n_limb1] = (u[j] >> shift) | - (u[j + 1] << (LIMB_BITS - shift)); - } - carry[nb_mods - 1 - n_limb1] = u[nb_mods - 1] >> shift; - } - } -} -#endif - -static int ntt_static_init(bf_context_t *s1) -{ - BFNTTState *s; - int inverse, i, j, k, l; - limb_t c, c_inv, c_inv2, m, m_inv; - - if (s1->ntt_state) - return 0; -#if defined(__AVX2__) - s = bf_aligned_malloc(s1, sizeof(*s), 64); -#else - s = bf_malloc(s1, sizeof(*s)); -#endif - if (!s) - return -1; - memset(s, 0, sizeof(*s)); - s1->ntt_state = s; - s->ctx = s1; - - for(j = 0; j < NB_MODS; j++) { - m = ntt_mods[j]; - m_inv = init_mul_mod_fast(m); - s->ntt_mods_div[j] = m_inv; -#if defined(__AVX2__) - s->ntt_mods_vec[j] = _mm256_set1_pd(m); - s->ntt_mods_inv_vec[j] = _mm256_set1_pd(1.0 / (double)m); -#endif - c_inv2 = (m + 1) / 2; /* 1/2 */ - c_inv = 1; - for(i = 0; i <= NTT_PROOT_2EXP; i++) { - s->ntt_len_inv[j][i][0] = c_inv; - s->ntt_len_inv[j][i][1] = init_mul_mod_fast2(c_inv, m); - c_inv = mul_mod_fast(c_inv, c_inv2, m, m_inv); - } - - for(inverse = 0; inverse < 2; inverse++) { - c = ntt_proot[inverse][j]; - for(i = 0; i < NTT_PROOT_2EXP; i++) { - s->ntt_proot_pow[j][inverse][NTT_PROOT_2EXP - i] = c; - s->ntt_proot_pow_inv[j][inverse][NTT_PROOT_2EXP - i] = - init_mul_mod_fast2(c, m); - c = mul_mod_fast(c, c, m, m_inv); - } - } - } - - l = 0; - for(j = 0; j < NB_MODS - 1; j++) { - for(k = j + 1; k < NB_MODS; k++) { -#if defined(__AVX2__) - s->ntt_mods_cr_vec[l] = _mm256_set1_pd(int_to_ntt_limb2(ntt_mods_cr[l], - ntt_mods[k])); -#else - s->ntt_mods_cr_inv[l] = init_mul_mod_fast2(ntt_mods_cr[l], - ntt_mods[k]); -#endif - l++; - } - } - return 0; -} - -int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len) -{ - int dpl, fft_len_log2, n_bits, nb_mods, dpl_found, fft_len_log2_found; - int int_bits, nb_mods_found; - limb_t cost, min_cost; - - min_cost = -1; - dpl_found = 0; - nb_mods_found = 4; - fft_len_log2_found = 0; - for(nb_mods = 3; nb_mods <= NB_MODS; nb_mods++) { - int_bits = ntt_int_bits[NB_MODS - nb_mods]; - dpl = bf_min((int_bits - 4) / 2, - 2 * LIMB_BITS + 2 * NTT_MOD_LOG2_MIN - NTT_MOD_LOG2_MAX); - for(;;) { - fft_len_log2 = ceil_log2((len * LIMB_BITS + dpl - 1) / dpl); - if (fft_len_log2 > NTT_PROOT_2EXP) - goto next; - n_bits = fft_len_log2 + 2 * dpl; - if (n_bits <= int_bits) { - cost = ((limb_t)(fft_len_log2 + 1) << fft_len_log2) * nb_mods; - // printf("n=%d dpl=%d: cost=%" PRId64 "\n", nb_mods, dpl, (int64_t)cost); - if (cost < min_cost) { - min_cost = cost; - dpl_found = dpl; - nb_mods_found = nb_mods; - fft_len_log2_found = fft_len_log2; - } - break; - } - dpl--; - if (dpl == 0) - break; - } - next: ; - } - if (!dpl_found) - abort(); - /* limit dpl if possible to reduce fixed cost of limb/NTT conversion */ - if (dpl_found > (LIMB_BITS + NTT_MOD_LOG2_MIN) && - ((limb_t)(LIMB_BITS + NTT_MOD_LOG2_MIN) << fft_len_log2_found) >= - len * LIMB_BITS) { - dpl_found = LIMB_BITS + NTT_MOD_LOG2_MIN; - } - *pnb_mods = nb_mods_found; - *pdpl = dpl_found; - return fft_len_log2_found; -} - -/* return 0 if OK, -1 if memory error */ -static no_inline int fft_mul(bf_context_t *s1, - bf_t *res, limb_t *a_tab, limb_t a_len, - limb_t *b_tab, limb_t b_len, int mul_flags) -{ - BFNTTState *s; - int dpl, fft_len_log2, j, nb_mods, reduced_mem; - slimb_t len, fft_len; - NTTLimb *buf1, *buf2, *ptr; -#if defined(USE_MUL_CHECK) - limb_t ha, hb, hr, h_ref; -#endif - - if (ntt_static_init(s1)) - return -1; - s = s1->ntt_state; - - /* find the optimal number of digits per limb (dpl) */ - len = a_len + b_len; - fft_len_log2 = bf_get_fft_size(&dpl, &nb_mods, len); - fft_len = (uint64_t)1 << fft_len_log2; - // printf("len=%" PRId64 " fft_len_log2=%d dpl=%d\n", len, fft_len_log2, dpl); -#if defined(USE_MUL_CHECK) - ha = mp_mod1(a_tab, a_len, BF_CHKSUM_MOD, 0); - hb = mp_mod1(b_tab, b_len, BF_CHKSUM_MOD, 0); -#endif - if ((mul_flags & (FFT_MUL_R_OVERLAP_A | FFT_MUL_R_OVERLAP_B)) == 0) { - if (!(mul_flags & FFT_MUL_R_NORESIZE)) - bf_resize(res, 0); - } else if (mul_flags & FFT_MUL_R_OVERLAP_B) { - limb_t *tmp_tab, tmp_len; - /* it is better to free 'b' first */ - tmp_tab = a_tab; - a_tab = b_tab; - b_tab = tmp_tab; - tmp_len = a_len; - a_len = b_len; - b_len = tmp_len; - } - buf1 = ntt_malloc(s, sizeof(NTTLimb) * fft_len * nb_mods); - if (!buf1) - return -1; - limb_to_ntt(s, buf1, fft_len, a_tab, a_len, dpl, - NB_MODS - nb_mods, nb_mods); - if ((mul_flags & (FFT_MUL_R_OVERLAP_A | FFT_MUL_R_OVERLAP_B)) == - FFT_MUL_R_OVERLAP_A) { - if (!(mul_flags & FFT_MUL_R_NORESIZE)) - bf_resize(res, 0); - } - reduced_mem = (fft_len_log2 >= 14); - if (!reduced_mem) { - buf2 = ntt_malloc(s, sizeof(NTTLimb) * fft_len * nb_mods); - if (!buf2) - goto fail; - limb_to_ntt(s, buf2, fft_len, b_tab, b_len, dpl, - NB_MODS - nb_mods, nb_mods); - if (!(mul_flags & FFT_MUL_R_NORESIZE)) - bf_resize(res, 0); /* in case res == b */ - } else { - buf2 = ntt_malloc(s, sizeof(NTTLimb) * fft_len); - if (!buf2) - goto fail; - } - for(j = 0; j < nb_mods; j++) { - if (reduced_mem) { - limb_to_ntt(s, buf2, fft_len, b_tab, b_len, dpl, - NB_MODS - nb_mods + j, 1); - ptr = buf2; - } else { - ptr = buf2 + fft_len * j; - } - if (ntt_conv(s, buf1 + fft_len * j, ptr, - fft_len_log2, fft_len_log2, j + NB_MODS - nb_mods)) - goto fail; - } - if (!(mul_flags & FFT_MUL_R_NORESIZE)) - bf_resize(res, 0); /* in case res == b and reduced mem */ - ntt_free(s, buf2); - buf2 = NULL; - if (!(mul_flags & FFT_MUL_R_NORESIZE)) { - if (bf_resize(res, len)) - goto fail; - } - ntt_to_limb(s, res->tab, len, buf1, fft_len_log2, dpl, nb_mods); - ntt_free(s, buf1); -#if defined(USE_MUL_CHECK) - hr = mp_mod1(res->tab, len, BF_CHKSUM_MOD, 0); - h_ref = mul_mod(ha, hb, BF_CHKSUM_MOD); - if (hr != h_ref) { - printf("ntt_mul_error: len=%" PRId_LIMB " fft_len_log2=%d dpl=%d nb_mods=%d\n", - len, fft_len_log2, dpl, nb_mods); - // printf("ha=0x" FMT_LIMB" hb=0x" FMT_LIMB " hr=0x" FMT_LIMB " expected=0x" FMT_LIMB "\n", ha, hb, hr, h_ref); - exit(1); - } -#endif - return 0; - fail: - ntt_free(s, buf1); - ntt_free(s, buf2); - return -1; -} - -#else /* USE_FFT_MUL */ - -int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len) -{ - return 0; -} - -#endif /* !USE_FFT_MUL */ diff --git a/deps/quickjs/libbf.h b/deps/quickjs/libbf.h deleted file mode 100644 index 0457c180..00000000 --- a/deps/quickjs/libbf.h +++ /dev/null @@ -1,535 +0,0 @@ -/* - * Tiny arbitrary precision floating point library - * - * Copyright (c) 2017-2021 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef LIBBF_H -#define LIBBF_H - -#include -#include - -#if defined(__SIZEOF_INT128__) && (INTPTR_MAX >= INT64_MAX) -#define LIMB_LOG2_BITS 6 -#else -#define LIMB_LOG2_BITS 5 -#endif - -#define LIMB_BITS (1 << LIMB_LOG2_BITS) - -#if LIMB_BITS == 64 -typedef __int128 int128_t; -typedef unsigned __int128 uint128_t; -typedef int64_t slimb_t; -typedef uint64_t limb_t; -typedef uint128_t dlimb_t; -#define BF_RAW_EXP_MIN INT64_MIN -#define BF_RAW_EXP_MAX INT64_MAX - -#define LIMB_DIGITS 19 -#define BF_DEC_BASE UINT64_C(10000000000000000000) - -#else - -typedef int32_t slimb_t; -typedef uint32_t limb_t; -typedef uint64_t dlimb_t; -#define BF_RAW_EXP_MIN INT32_MIN -#define BF_RAW_EXP_MAX INT32_MAX - -#define LIMB_DIGITS 9 -#define BF_DEC_BASE 1000000000U - -#endif - -/* in bits */ -/* minimum number of bits for the exponent */ -#define BF_EXP_BITS_MIN 3 -/* maximum number of bits for the exponent */ -#define BF_EXP_BITS_MAX (LIMB_BITS - 3) -/* extended range for exponent, used internally */ -#define BF_EXT_EXP_BITS_MAX (BF_EXP_BITS_MAX + 1) -/* minimum possible precision */ -#define BF_PREC_MIN 2 -/* minimum possible precision */ -#define BF_PREC_MAX (((limb_t)1 << (LIMB_BITS - 2)) - 2) -/* some operations support infinite precision */ -#define BF_PREC_INF (BF_PREC_MAX + 1) /* infinite precision */ - -#if LIMB_BITS == 64 -#define BF_CHKSUM_MOD (UINT64_C(975620677) * UINT64_C(9795002197)) -#else -#define BF_CHKSUM_MOD 975620677U -#endif - -#define BF_EXP_ZERO BF_RAW_EXP_MIN -#define BF_EXP_INF (BF_RAW_EXP_MAX - 1) -#define BF_EXP_NAN BF_RAW_EXP_MAX - -/* +/-zero is represented with expn = BF_EXP_ZERO and len = 0, - +/-infinity is represented with expn = BF_EXP_INF and len = 0, - NaN is represented with expn = BF_EXP_NAN and len = 0 (sign is ignored) - */ -typedef struct { - struct bf_context_t *ctx; - int sign; - slimb_t expn; - limb_t len; - limb_t *tab; -} bf_t; - -typedef struct { - /* must be kept identical to bf_t */ - struct bf_context_t *ctx; - int sign; - slimb_t expn; - limb_t len; - limb_t *tab; -} bfdec_t; - -typedef enum { - BF_RNDN, /* round to nearest, ties to even */ - BF_RNDZ, /* round to zero */ - BF_RNDD, /* round to -inf (the code relies on (BF_RNDD xor BF_RNDU) = 1) */ - BF_RNDU, /* round to +inf */ - BF_RNDNA, /* round to nearest, ties away from zero */ - BF_RNDA, /* round away from zero */ - BF_RNDF, /* faithful rounding (nondeterministic, either RNDD or RNDU, - inexact flag is always set) */ -} bf_rnd_t; - -/* allow subnormal numbers. Only available if the number of exponent - bits is <= BF_EXP_BITS_USER_MAX and prec != BF_PREC_INF. */ -#define BF_FLAG_SUBNORMAL (1 << 3) -/* 'prec' is the precision after the radix point instead of the whole - mantissa. Can only be used with bf_round() and - bfdec_[add|sub|mul|div|sqrt|round](). */ -#define BF_FLAG_RADPNT_PREC (1 << 4) - -#define BF_RND_MASK 0x7 -#define BF_EXP_BITS_SHIFT 5 -#define BF_EXP_BITS_MASK 0x3f - -/* shortcut for bf_set_exp_bits(BF_EXT_EXP_BITS_MAX) */ -#define BF_FLAG_EXT_EXP (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT) - -/* contains the rounding mode and number of exponents bits */ -typedef uint32_t bf_flags_t; - -typedef void *bf_realloc_func_t(void *opaque, void *ptr, size_t size); - -typedef struct { - bf_t val; - limb_t prec; -} BFConstCache; - -typedef struct bf_context_t { - void *realloc_opaque; - bf_realloc_func_t *realloc_func; - BFConstCache log2_cache; - BFConstCache pi_cache; - struct BFNTTState *ntt_state; -} bf_context_t; - -static inline int bf_get_exp_bits(bf_flags_t flags) -{ - int e; - e = (flags >> BF_EXP_BITS_SHIFT) & BF_EXP_BITS_MASK; - if (e == BF_EXP_BITS_MASK) - return BF_EXP_BITS_MAX + 1; - else - return BF_EXP_BITS_MAX - e; -} - -static inline bf_flags_t bf_set_exp_bits(int n) -{ - return ((BF_EXP_BITS_MAX - n) & BF_EXP_BITS_MASK) << BF_EXP_BITS_SHIFT; -} - -/* returned status */ -#define BF_ST_INVALID_OP (1 << 0) -#define BF_ST_DIVIDE_ZERO (1 << 1) -#define BF_ST_OVERFLOW (1 << 2) -#define BF_ST_UNDERFLOW (1 << 3) -#define BF_ST_INEXACT (1 << 4) -/* indicate that a memory allocation error occured. NaN is returned */ -#define BF_ST_MEM_ERROR (1 << 5) - -#define BF_RADIX_MAX 36 /* maximum radix for bf_atof() and bf_ftoa() */ - -static inline slimb_t bf_max(slimb_t a, slimb_t b) -{ - if (a > b) - return a; - else - return b; -} - -static inline slimb_t bf_min(slimb_t a, slimb_t b) -{ - if (a < b) - return a; - else - return b; -} - -void bf_context_init(bf_context_t *s, bf_realloc_func_t *realloc_func, - void *realloc_opaque); -void bf_context_end(bf_context_t *s); -/* free memory allocated for the bf cache data */ -void bf_clear_cache(bf_context_t *s); - -static inline void *bf_realloc(bf_context_t *s, void *ptr, size_t size) -{ - return s->realloc_func(s->realloc_opaque, ptr, size); -} - -/* 'size' must be != 0 */ -static inline void *bf_malloc(bf_context_t *s, size_t size) -{ - return bf_realloc(s, NULL, size); -} - -static inline void bf_free(bf_context_t *s, void *ptr) -{ - /* must test ptr otherwise equivalent to malloc(0) */ - if (ptr) - bf_realloc(s, ptr, 0); -} - -void bf_init(bf_context_t *s, bf_t *r); - -static inline void bf_delete(bf_t *r) -{ - bf_context_t *s = r->ctx; - /* we accept to delete a zeroed bf_t structure */ - if (s && r->tab) { - bf_realloc(s, r->tab, 0); - } -} - -static inline void bf_neg(bf_t *r) -{ - r->sign ^= 1; -} - -static inline int bf_is_finite(const bf_t *a) -{ - return (a->expn < BF_EXP_INF); -} - -static inline int bf_is_nan(const bf_t *a) -{ - return (a->expn == BF_EXP_NAN); -} - -static inline int bf_is_zero(const bf_t *a) -{ - return (a->expn == BF_EXP_ZERO); -} - -static inline void bf_memcpy(bf_t *r, const bf_t *a) -{ - *r = *a; -} - -int bf_set_ui(bf_t *r, uint64_t a); -int bf_set_si(bf_t *r, int64_t a); -void bf_set_nan(bf_t *r); -void bf_set_zero(bf_t *r, int is_neg); -void bf_set_inf(bf_t *r, int is_neg); -int bf_set(bf_t *r, const bf_t *a); -void bf_move(bf_t *r, bf_t *a); -int bf_get_float64(const bf_t *a, double *pres, bf_rnd_t rnd_mode); -int bf_set_float64(bf_t *a, double d); - -int bf_cmpu(const bf_t *a, const bf_t *b); -int bf_cmp_full(const bf_t *a, const bf_t *b); -int bf_cmp(const bf_t *a, const bf_t *b); -static inline int bf_cmp_eq(const bf_t *a, const bf_t *b) -{ - return bf_cmp(a, b) == 0; -} - -static inline int bf_cmp_le(const bf_t *a, const bf_t *b) -{ - return bf_cmp(a, b) <= 0; -} - -static inline int bf_cmp_lt(const bf_t *a, const bf_t *b) -{ - return bf_cmp(a, b) < 0; -} - -int bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); -int bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); -int bf_add_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, bf_flags_t flags); -int bf_mul(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); -int bf_mul_ui(bf_t *r, const bf_t *a, uint64_t b1, limb_t prec, bf_flags_t flags); -int bf_mul_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, - bf_flags_t flags); -int bf_mul_2exp(bf_t *r, slimb_t e, limb_t prec, bf_flags_t flags); -int bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); -#define BF_DIVREM_EUCLIDIAN BF_RNDF -int bf_divrem(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b, - limb_t prec, bf_flags_t flags, int rnd_mode); -int bf_rem(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags, int rnd_mode); -int bf_remquo(slimb_t *pq, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, - bf_flags_t flags, int rnd_mode); -/* round to integer with infinite precision */ -int bf_rint(bf_t *r, int rnd_mode); -int bf_round(bf_t *r, limb_t prec, bf_flags_t flags); -int bf_sqrtrem(bf_t *r, bf_t *rem1, const bf_t *a); -int bf_sqrt(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -slimb_t bf_get_exp_min(const bf_t *a); -int bf_logic_or(bf_t *r, const bf_t *a, const bf_t *b); -int bf_logic_xor(bf_t *r, const bf_t *a, const bf_t *b); -int bf_logic_and(bf_t *r, const bf_t *a, const bf_t *b); - -/* additional flags for bf_atof */ -/* do not accept hex radix prefix (0x or 0X) if radix = 0 or radix = 16 */ -#define BF_ATOF_NO_HEX (1 << 16) -/* accept binary (0b or 0B) or octal (0o or 0O) radix prefix if radix = 0 */ -#define BF_ATOF_BIN_OCT (1 << 17) -/* Do not parse NaN or Inf */ -#define BF_ATOF_NO_NAN_INF (1 << 18) -/* return the exponent separately */ -#define BF_ATOF_EXPONENT (1 << 19) - -int bf_atof(bf_t *a, const char *str, const char **pnext, int radix, - limb_t prec, bf_flags_t flags); -/* this version accepts prec = BF_PREC_INF and returns the radix - exponent */ -int bf_atof2(bf_t *r, slimb_t *pexponent, - const char *str, const char **pnext, int radix, - limb_t prec, bf_flags_t flags); -int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix, - slimb_t expn, limb_t prec, bf_flags_t flags); - - -/* Conversion of floating point number to string. Return a null - terminated string or NULL if memory error. *plen contains its - length if plen != NULL. The exponent letter is "e" for base 10, - "p" for bases 2, 8, 16 with a binary exponent and "@" for the other - bases. */ - -#define BF_FTOA_FORMAT_MASK (3 << 16) - -/* fixed format: prec significant digits rounded with (flags & - BF_RND_MASK). Exponential notation is used if too many zeros are - needed.*/ -#define BF_FTOA_FORMAT_FIXED (0 << 16) -/* fractional format: prec digits after the decimal point rounded with - (flags & BF_RND_MASK) */ -#define BF_FTOA_FORMAT_FRAC (1 << 16) -/* free format: - - For binary radices with bf_ftoa() and for bfdec_ftoa(): use the minimum - number of digits to represent 'a'. The precision and the rounding - mode are ignored. - - For the non binary radices with bf_ftoa(): use as many digits as - necessary so that bf_atof() return the same number when using - precision 'prec', rounding to nearest and the subnormal - configuration of 'flags'. The result is meaningful only if 'a' is - already rounded to 'prec' bits. If the subnormal flag is set, the - exponent in 'flags' must also be set to the desired exponent range. -*/ -#define BF_FTOA_FORMAT_FREE (2 << 16) -/* same as BF_FTOA_FORMAT_FREE but uses the minimum number of digits - (takes more computation time). Identical to BF_FTOA_FORMAT_FREE for - binary radices with bf_ftoa() and for bfdec_ftoa(). */ -#define BF_FTOA_FORMAT_FREE_MIN (3 << 16) - -/* force exponential notation for fixed or free format */ -#define BF_FTOA_FORCE_EXP (1 << 20) -/* add 0x prefix for base 16, 0o prefix for base 8 or 0b prefix for - base 2 if non zero value */ -#define BF_FTOA_ADD_PREFIX (1 << 21) -/* return "Infinity" instead of "Inf" and add a "+" for positive - exponents */ -#define BF_FTOA_JS_QUIRKS (1 << 22) - -char *bf_ftoa(size_t *plen, const bf_t *a, int radix, limb_t prec, - bf_flags_t flags); - -/* modulo 2^n instead of saturation. NaN and infinity return 0 */ -#define BF_GET_INT_MOD (1 << 0) -int bf_get_int32(int *pres, const bf_t *a, int flags); -int bf_get_int64(int64_t *pres, const bf_t *a, int flags); -int bf_get_uint64(uint64_t *pres, const bf_t *a); - -/* the following functions are exported for testing only. */ -void mp_print_str(const char *str, const limb_t *tab, limb_t n); -void bf_print_str(const char *str, const bf_t *a); -int bf_resize(bf_t *r, limb_t len); -int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len); -int bf_normalize_and_round(bf_t *r, limb_t prec1, bf_flags_t flags); -int bf_can_round(const bf_t *a, slimb_t prec, bf_rnd_t rnd_mode, slimb_t k); -slimb_t bf_mul_log2_radix(slimb_t a1, unsigned int radix, int is_inv, - int is_ceil1); -int mp_mul(bf_context_t *s, limb_t *result, - const limb_t *op1, limb_t op1_size, - const limb_t *op2, limb_t op2_size); -limb_t mp_add(limb_t *res, const limb_t *op1, const limb_t *op2, - limb_t n, limb_t carry); -limb_t mp_add_ui(limb_t *tab, limb_t b, size_t n); -int mp_sqrtrem(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n); -int mp_recip(bf_context_t *s, limb_t *tabr, const limb_t *taba, limb_t n); -limb_t bf_isqrt(limb_t a); - -/* transcendental functions */ -int bf_const_log2(bf_t *T, limb_t prec, bf_flags_t flags); -int bf_const_pi(bf_t *T, limb_t prec, bf_flags_t flags); -int bf_exp(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -int bf_log(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -#define BF_POW_JS_QUIRKS (1 << 16) /* (+/-1)^(+/-Inf) = NaN, 1^NaN = NaN */ -int bf_pow(bf_t *r, const bf_t *x, const bf_t *y, limb_t prec, bf_flags_t flags); -int bf_cos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -int bf_sin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -int bf_tan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -int bf_atan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -int bf_atan2(bf_t *r, const bf_t *y, const bf_t *x, - limb_t prec, bf_flags_t flags); -int bf_asin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); -int bf_acos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); - -/* decimal floating point */ - -static inline void bfdec_init(bf_context_t *s, bfdec_t *r) -{ - bf_init(s, (bf_t *)r); -} -static inline void bfdec_delete(bfdec_t *r) -{ - bf_delete((bf_t *)r); -} - -static inline void bfdec_neg(bfdec_t *r) -{ - r->sign ^= 1; -} - -static inline int bfdec_is_finite(const bfdec_t *a) -{ - return (a->expn < BF_EXP_INF); -} - -static inline int bfdec_is_nan(const bfdec_t *a) -{ - return (a->expn == BF_EXP_NAN); -} - -static inline int bfdec_is_zero(const bfdec_t *a) -{ - return (a->expn == BF_EXP_ZERO); -} - -static inline void bfdec_memcpy(bfdec_t *r, const bfdec_t *a) -{ - bf_memcpy((bf_t *)r, (const bf_t *)a); -} - -int bfdec_set_ui(bfdec_t *r, uint64_t a); -int bfdec_set_si(bfdec_t *r, int64_t a); - -static inline void bfdec_set_nan(bfdec_t *r) -{ - bf_set_nan((bf_t *)r); -} -static inline void bfdec_set_zero(bfdec_t *r, int is_neg) -{ - bf_set_zero((bf_t *)r, is_neg); -} -static inline void bfdec_set_inf(bfdec_t *r, int is_neg) -{ - bf_set_inf((bf_t *)r, is_neg); -} -static inline int bfdec_set(bfdec_t *r, const bfdec_t *a) -{ - return bf_set((bf_t *)r, (bf_t *)a); -} -static inline void bfdec_move(bfdec_t *r, bfdec_t *a) -{ - bf_move((bf_t *)r, (bf_t *)a); -} -static inline int bfdec_cmpu(const bfdec_t *a, const bfdec_t *b) -{ - return bf_cmpu((const bf_t *)a, (const bf_t *)b); -} -static inline int bfdec_cmp_full(const bfdec_t *a, const bfdec_t *b) -{ - return bf_cmp_full((const bf_t *)a, (const bf_t *)b); -} -static inline int bfdec_cmp(const bfdec_t *a, const bfdec_t *b) -{ - return bf_cmp((const bf_t *)a, (const bf_t *)b); -} -static inline int bfdec_cmp_eq(const bfdec_t *a, const bfdec_t *b) -{ - return bfdec_cmp(a, b) == 0; -} -static inline int bfdec_cmp_le(const bfdec_t *a, const bfdec_t *b) -{ - return bfdec_cmp(a, b) <= 0; -} -static inline int bfdec_cmp_lt(const bfdec_t *a, const bfdec_t *b) -{ - return bfdec_cmp(a, b) < 0; -} - -int bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags); -int bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags); -int bfdec_add_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, - bf_flags_t flags); -int bfdec_mul(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags); -int bfdec_mul_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, - bf_flags_t flags); -int bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags); -int bfdec_divrem(bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b, - limb_t prec, bf_flags_t flags, int rnd_mode); -int bfdec_rem(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, - bf_flags_t flags, int rnd_mode); -int bfdec_rint(bfdec_t *r, int rnd_mode); -int bfdec_sqrt(bfdec_t *r, const bfdec_t *a, limb_t prec, bf_flags_t flags); -int bfdec_round(bfdec_t *r, limb_t prec, bf_flags_t flags); -int bfdec_get_int32(int *pres, const bfdec_t *a); -int bfdec_pow_ui(bfdec_t *r, const bfdec_t *a, limb_t b); - -char *bfdec_ftoa(size_t *plen, const bfdec_t *a, limb_t prec, bf_flags_t flags); -int bfdec_atof(bfdec_t *r, const char *str, const char **pnext, - limb_t prec, bf_flags_t flags); - -/* the following functions are exported for testing only. */ -extern const limb_t mp_pow_dec[LIMB_DIGITS + 1]; -void bfdec_print_str(const char *str, const bfdec_t *a); -static inline int bfdec_resize(bfdec_t *r, limb_t len) -{ - return bf_resize((bf_t *)r, len); -} -int bfdec_normalize_and_round(bfdec_t *r, limb_t prec1, bf_flags_t flags); - -#endif /* LIBBF_H */ diff --git a/deps/quickjs/libregexp-opcode.h b/deps/quickjs/libregexp-opcode.h deleted file mode 100644 index 189d1215..00000000 --- a/deps/quickjs/libregexp-opcode.h +++ /dev/null @@ -1,57 +0,0 @@ -/* - * Regular Expression Engine - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#ifdef DEF - -DEF(invalid, 1) /* never used */ -DEF(char, 3) -DEF(char32, 5) -DEF(dot, 1) -DEF(any, 1) /* same as dot but match any character including line terminator */ -DEF(line_start, 1) -DEF(line_end, 1) -DEF(goto, 5) -DEF(split_goto_first, 5) -DEF(split_next_first, 5) -DEF(match, 1) -DEF(save_start, 2) /* save start position */ -DEF(save_end, 2) /* save end position, must come after saved_start */ -DEF(save_reset, 3) /* reset save positions */ -DEF(loop, 5) /* decrement the top the stack and goto if != 0 */ -DEF(push_i32, 5) /* push integer on the stack */ -DEF(drop, 1) -DEF(word_boundary, 1) -DEF(not_word_boundary, 1) -DEF(back_reference, 2) -DEF(backward_back_reference, 2) /* must come after back_reference */ -DEF(range, 3) /* variable length */ -DEF(range32, 3) /* variable length */ -DEF(lookahead, 5) -DEF(negative_lookahead, 5) -DEF(push_char_pos, 1) /* push the character position on the stack */ -DEF(check_advance, 1) /* pop one stack element and check that it is different from the character position */ -DEF(prev, 1) /* go to the previous char */ -DEF(simple_greedy_quant, 17) - -#endif /* DEF */ diff --git a/deps/quickjs/libregexp.c b/deps/quickjs/libregexp.c deleted file mode 100644 index b6af4548..00000000 --- a/deps/quickjs/libregexp.c +++ /dev/null @@ -1,2529 +0,0 @@ -/* - * Regular Expression Engine - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include - -#include "cutils.h" -#include "libregexp.h" - -/* - TODO: - - - Add a lock step execution mode (=linear time execution guaranteed) - when the regular expression is "simple" i.e. no backreference nor - complicated lookahead. The opcodes are designed for this execution - model. -*/ - -#if defined(TEST) -#define DUMP_REOP -#endif - -typedef enum { -#define DEF(id, size) REOP_ ## id, -#include "libregexp-opcode.h" -#undef DEF - REOP_COUNT, -} REOPCodeEnum; - -#define CAPTURE_COUNT_MAX 255 -#define STACK_SIZE_MAX 255 - -/* unicode code points */ -#define CP_LS 0x2028 -#define CP_PS 0x2029 - -#define TMP_BUF_SIZE 128 - -typedef struct { - DynBuf byte_code; - const uint8_t *buf_ptr; - const uint8_t *buf_end; - const uint8_t *buf_start; - int re_flags; - BOOL is_utf16; - BOOL ignore_case; - BOOL dotall; - int capture_count; - int total_capture_count; /* -1 = not computed yet */ - int has_named_captures; /* -1 = don't know, 0 = no, 1 = yes */ - void *opaque; - DynBuf group_names; - union { - char error_msg[TMP_BUF_SIZE]; - char tmp_buf[TMP_BUF_SIZE]; - } u; -} REParseState; - -typedef struct { -#ifdef DUMP_REOP - const char *name; -#endif - uint8_t size; -} REOpCode; - -static const REOpCode reopcode_info[REOP_COUNT] = { -#ifdef DUMP_REOP -#define DEF(id, size) { #id, size }, -#else -#define DEF(id, size) { size }, -#endif -#include "libregexp-opcode.h" -#undef DEF -}; - -#define RE_HEADER_FLAGS 0 -#define RE_HEADER_CAPTURE_COUNT 1 -#define RE_HEADER_STACK_SIZE 2 - -#define RE_HEADER_LEN 7 - -static inline int is_digit(int c) { - return c >= '0' && c <= '9'; -} - -/* insert 'len' bytes at position 'pos'. Return < 0 if error. */ -static int dbuf_insert(DynBuf *s, int pos, int len) -{ - if (dbuf_realloc(s, s->size + len)) - return -1; - memmove(s->buf + pos + len, s->buf + pos, s->size - pos); - s->size += len; - return 0; -} - -static const uint16_t char_range_d[] = { - 1, - 0x0030, 0x0039 + 1, -}; - -/* code point ranges for Zs,Zl or Zp property */ -static const uint16_t char_range_s[] = { - 10, - 0x0009, 0x000D + 1, - 0x0020, 0x0020 + 1, - 0x00A0, 0x00A0 + 1, - 0x1680, 0x1680 + 1, - 0x2000, 0x200A + 1, - /* 2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;; */ - /* 2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;; */ - 0x2028, 0x2029 + 1, - 0x202F, 0x202F + 1, - 0x205F, 0x205F + 1, - 0x3000, 0x3000 + 1, - /* FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; */ - 0xFEFF, 0xFEFF + 1, -}; - -BOOL lre_is_space(int c) -{ - int i, n, low, high; - n = (countof(char_range_s) - 1) / 2; - for(i = 0; i < n; i++) { - low = char_range_s[2 * i + 1]; - if (c < low) - return FALSE; - high = char_range_s[2 * i + 2]; - if (c < high) - return TRUE; - } - return FALSE; -} - -uint32_t const lre_id_start_table_ascii[4] = { - /* $ A-Z _ a-z */ - 0x00000000, 0x00000010, 0x87FFFFFE, 0x07FFFFFE -}; - -uint32_t const lre_id_continue_table_ascii[4] = { - /* $ 0-9 A-Z _ a-z */ - 0x00000000, 0x03FF0010, 0x87FFFFFE, 0x07FFFFFE -}; - - -static const uint16_t char_range_w[] = { - 4, - 0x0030, 0x0039 + 1, - 0x0041, 0x005A + 1, - 0x005F, 0x005F + 1, - 0x0061, 0x007A + 1, -}; - -#define CLASS_RANGE_BASE 0x40000000 - -typedef enum { - CHAR_RANGE_d, - CHAR_RANGE_D, - CHAR_RANGE_s, - CHAR_RANGE_S, - CHAR_RANGE_w, - CHAR_RANGE_W, -} CharRangeEnum; - -static const uint16_t *char_range_table[] = { - char_range_d, - char_range_s, - char_range_w, -}; - -static int cr_init_char_range(REParseState *s, CharRange *cr, uint32_t c) -{ - BOOL invert; - const uint16_t *c_pt; - int len, i; - - invert = c & 1; - c_pt = char_range_table[c >> 1]; - len = *c_pt++; - cr_init(cr, s->opaque, lre_realloc); - for(i = 0; i < len * 2; i++) { - if (cr_add_point(cr, c_pt[i])) - goto fail; - } - if (invert) { - if (cr_invert(cr)) - goto fail; - } - return 0; - fail: - cr_free(cr); - return -1; -} - -#ifdef DUMP_REOP -static __maybe_unused void lre_dump_bytecode(const uint8_t *buf, - int buf_len) -{ - int pos, len, opcode, bc_len, re_flags, i; - uint32_t val; - - assert(buf_len >= RE_HEADER_LEN); - - re_flags= buf[0]; - bc_len = get_u32(buf + 3); - assert(bc_len + RE_HEADER_LEN <= buf_len); - printf("flags: 0x%x capture_count=%d stack_size=%d\n", - re_flags, buf[1], buf[2]); - if (re_flags & LRE_FLAG_NAMED_GROUPS) { - const char *p; - p = (char *)buf + RE_HEADER_LEN + bc_len; - printf("named groups: "); - for(i = 1; i < buf[1]; i++) { - if (i != 1) - printf(","); - printf("<%s>", p); - p += strlen(p) + 1; - } - printf("\n"); - assert(p == (char *)(buf + buf_len)); - } - printf("bytecode_len=%d\n", bc_len); - - buf += RE_HEADER_LEN; - pos = 0; - while (pos < bc_len) { - printf("%5u: ", pos); - opcode = buf[pos]; - len = reopcode_info[opcode].size; - if (opcode >= REOP_COUNT) { - printf(" invalid opcode=0x%02x\n", opcode); - break; - } - if ((pos + len) > bc_len) { - printf(" buffer overflow (opcode=0x%02x)\n", opcode); - break; - } - printf("%s", reopcode_info[opcode].name); - switch(opcode) { - case REOP_char: - val = get_u16(buf + pos + 1); - if (val >= ' ' && val <= 126) - printf(" '%c'", val); - else - printf(" 0x%04x", val); - break; - case REOP_char32: - val = get_u32(buf + pos + 1); - if (val >= ' ' && val <= 126) - printf(" '%c'", val); - else - printf(" 0x%08x", val); - break; - case REOP_goto: - case REOP_split_goto_first: - case REOP_split_next_first: - case REOP_loop: - case REOP_lookahead: - case REOP_negative_lookahead: - val = get_u32(buf + pos + 1); - val += (pos + 5); - printf(" %u", val); - break; - case REOP_simple_greedy_quant: - printf(" %u %u %u %u", - get_u32(buf + pos + 1) + (pos + 17), - get_u32(buf + pos + 1 + 4), - get_u32(buf + pos + 1 + 8), - get_u32(buf + pos + 1 + 12)); - break; - case REOP_save_start: - case REOP_save_end: - case REOP_back_reference: - case REOP_backward_back_reference: - printf(" %u", buf[pos + 1]); - break; - case REOP_save_reset: - printf(" %u %u", buf[pos + 1], buf[pos + 2]); - break; - case REOP_push_i32: - val = get_u32(buf + pos + 1); - printf(" %d", val); - break; - case REOP_range: - { - int n, i; - n = get_u16(buf + pos + 1); - len += n * 4; - for(i = 0; i < n * 2; i++) { - val = get_u16(buf + pos + 3 + i * 2); - printf(" 0x%04x", val); - } - } - break; - case REOP_range32: - { - int n, i; - n = get_u16(buf + pos + 1); - len += n * 8; - for(i = 0; i < n * 2; i++) { - val = get_u32(buf + pos + 3 + i * 4); - printf(" 0x%08x", val); - } - } - break; - default: - break; - } - printf("\n"); - pos += len; - } -} -#endif - -static void re_emit_op(REParseState *s, int op) -{ - dbuf_putc(&s->byte_code, op); -} - -/* return the offset of the u32 value */ -static int re_emit_op_u32(REParseState *s, int op, uint32_t val) -{ - int pos; - dbuf_putc(&s->byte_code, op); - pos = s->byte_code.size; - dbuf_put_u32(&s->byte_code, val); - return pos; -} - -static int re_emit_goto(REParseState *s, int op, uint32_t val) -{ - int pos; - dbuf_putc(&s->byte_code, op); - pos = s->byte_code.size; - dbuf_put_u32(&s->byte_code, val - (pos + 4)); - return pos; -} - -static void re_emit_op_u8(REParseState *s, int op, uint32_t val) -{ - dbuf_putc(&s->byte_code, op); - dbuf_putc(&s->byte_code, val); -} - -static void re_emit_op_u16(REParseState *s, int op, uint32_t val) -{ - dbuf_putc(&s->byte_code, op); - dbuf_put_u16(&s->byte_code, val); -} - -static int __attribute__((format(printf, 2, 3))) re_parse_error(REParseState *s, const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - vsnprintf(s->u.error_msg, sizeof(s->u.error_msg), fmt, ap); - va_end(ap); - return -1; -} - -static int re_parse_out_of_memory(REParseState *s) -{ - return re_parse_error(s, "out of memory"); -} - -/* If allow_overflow is false, return -1 in case of - overflow. Otherwise return INT32_MAX. */ -static int parse_digits(const uint8_t **pp, BOOL allow_overflow) -{ - const uint8_t *p; - uint64_t v; - int c; - - p = *pp; - v = 0; - for(;;) { - c = *p; - if (c < '0' || c > '9') - break; - v = v * 10 + c - '0'; - if (v >= INT32_MAX) { - if (allow_overflow) - v = INT32_MAX; - else - return -1; - } - p++; - } - *pp = p; - return v; -} - -static int re_parse_expect(REParseState *s, const uint8_t **pp, int c) -{ - const uint8_t *p; - p = *pp; - if (*p != c) - return re_parse_error(s, "expecting '%c'", c); - p++; - *pp = p; - return 0; -} - -/* Parse an escape sequence, *pp points after the '\': - allow_utf16 value: - 0 : no UTF-16 escapes allowed - 1 : UTF-16 escapes allowed - 2 : UTF-16 escapes allowed and escapes of surrogate pairs are - converted to a unicode character (unicode regexp case). - - Return the unicode char and update *pp if recognized, - return -1 if malformed escape, - return -2 otherwise. */ -int lre_parse_escape(const uint8_t **pp, int allow_utf16) -{ - const uint8_t *p; - uint32_t c; - - p = *pp; - c = *p++; - switch(c) { - case 'b': - c = '\b'; - break; - case 'f': - c = '\f'; - break; - case 'n': - c = '\n'; - break; - case 'r': - c = '\r'; - break; - case 't': - c = '\t'; - break; - case 'v': - c = '\v'; - break; - case 'x': - case 'u': - { - int h, n, i; - uint32_t c1; - - if (*p == '{' && allow_utf16) { - p++; - c = 0; - for(;;) { - h = from_hex(*p++); - if (h < 0) - return -1; - c = (c << 4) | h; - if (c > 0x10FFFF) - return -1; - if (*p == '}') - break; - } - p++; - } else { - if (c == 'x') { - n = 2; - } else { - n = 4; - } - - c = 0; - for(i = 0; i < n; i++) { - h = from_hex(*p++); - if (h < 0) { - return -1; - } - c = (c << 4) | h; - } - if (c >= 0xd800 && c < 0xdc00 && - allow_utf16 == 2 && p[0] == '\\' && p[1] == 'u') { - /* convert an escaped surrogate pair into a - unicode char */ - c1 = 0; - for(i = 0; i < 4; i++) { - h = from_hex(p[2 + i]); - if (h < 0) - break; - c1 = (c1 << 4) | h; - } - if (i == 4 && c1 >= 0xdc00 && c1 < 0xe000) { - p += 6; - c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000; - } - } - } - } - break; - case '0': case '1': case '2': case '3': - case '4': case '5': case '6': case '7': - c -= '0'; - if (allow_utf16 == 2) { - /* only accept \0 not followed by digit */ - if (c != 0 || is_digit(*p)) - return -1; - } else { - /* parse a legacy octal sequence */ - uint32_t v; - v = *p - '0'; - if (v > 7) - break; - c = (c << 3) | v; - p++; - if (c >= 32) - break; - v = *p - '0'; - if (v > 7) - break; - c = (c << 3) | v; - p++; - } - break; - default: - return -2; - } - *pp = p; - return c; -} - -#ifdef CONFIG_ALL_UNICODE -/* XXX: we use the same chars for name and value */ -static BOOL is_unicode_char(int c) -{ - return ((c >= '0' && c <= '9') || - (c >= 'A' && c <= 'Z') || - (c >= 'a' && c <= 'z') || - (c == '_')); -} - -static int parse_unicode_property(REParseState *s, CharRange *cr, - const uint8_t **pp, BOOL is_inv) -{ - const uint8_t *p; - char name[64], value[64]; - char *q; - BOOL script_ext; - int ret; - - p = *pp; - if (*p != '{') - return re_parse_error(s, "expecting '{' after \\p"); - p++; - q = name; - while (is_unicode_char(*p)) { - if ((q - name) >= sizeof(name) - 1) - goto unknown_property_name; - *q++ = *p++; - } - *q = '\0'; - q = value; - if (*p == '=') { - p++; - while (is_unicode_char(*p)) { - if ((q - value) >= sizeof(value) - 1) - return re_parse_error(s, "unknown unicode property value"); - *q++ = *p++; - } - } - *q = '\0'; - if (*p != '}') - return re_parse_error(s, "expecting '}'"); - p++; - // printf("name=%s value=%s\n", name, value); - - if (!strcmp(name, "Script") || !strcmp(name, "sc")) { - script_ext = FALSE; - goto do_script; - } else if (!strcmp(name, "Script_Extensions") || !strcmp(name, "scx")) { - script_ext = TRUE; - do_script: - cr_init(cr, s->opaque, lre_realloc); - ret = unicode_script(cr, value, script_ext); - if (ret) { - cr_free(cr); - if (ret == -2) - return re_parse_error(s, "unknown unicode script"); - else - goto out_of_memory; - } - } else if (!strcmp(name, "General_Category") || !strcmp(name, "gc")) { - cr_init(cr, s->opaque, lre_realloc); - ret = unicode_general_category(cr, value); - if (ret) { - cr_free(cr); - if (ret == -2) - return re_parse_error(s, "unknown unicode general category"); - else - goto out_of_memory; - } - } else if (value[0] == '\0') { - cr_init(cr, s->opaque, lre_realloc); - ret = unicode_general_category(cr, name); - if (ret == -1) { - cr_free(cr); - goto out_of_memory; - } - if (ret < 0) { - ret = unicode_prop(cr, name); - if (ret) { - cr_free(cr); - if (ret == -2) - goto unknown_property_name; - else - goto out_of_memory; - } - } - } else { - unknown_property_name: - return re_parse_error(s, "unknown unicode property name"); - } - - if (is_inv) { - if (cr_invert(cr)) { - cr_free(cr); - return -1; - } - } - *pp = p; - return 0; - out_of_memory: - return re_parse_out_of_memory(s); -} -#endif /* CONFIG_ALL_UNICODE */ - -/* return -1 if error otherwise the character or a class range - (CLASS_RANGE_BASE). In case of class range, 'cr' is - initialized. Otherwise, it is ignored. */ -static int get_class_atom(REParseState *s, CharRange *cr, - const uint8_t **pp, BOOL inclass) -{ - const uint8_t *p; - uint32_t c; - int ret; - - p = *pp; - - c = *p; - switch(c) { - case '\\': - p++; - if (p >= s->buf_end) - goto unexpected_end; - c = *p++; - switch(c) { - case 'd': - c = CHAR_RANGE_d; - goto class_range; - case 'D': - c = CHAR_RANGE_D; - goto class_range; - case 's': - c = CHAR_RANGE_s; - goto class_range; - case 'S': - c = CHAR_RANGE_S; - goto class_range; - case 'w': - c = CHAR_RANGE_w; - goto class_range; - case 'W': - c = CHAR_RANGE_W; - class_range: - if (cr_init_char_range(s, cr, c)) - return -1; - c = CLASS_RANGE_BASE; - break; - case 'c': - c = *p; - if ((c >= 'a' && c <= 'z') || - (c >= 'A' && c <= 'Z') || - (((c >= '0' && c <= '9') || c == '_') && - inclass && !s->is_utf16)) { /* Annex B.1.4 */ - c &= 0x1f; - p++; - } else if (s->is_utf16) { - goto invalid_escape; - } else { - /* otherwise return '\' and 'c' */ - p--; - c = '\\'; - } - break; -#ifdef CONFIG_ALL_UNICODE - case 'p': - case 'P': - if (s->is_utf16) { - if (parse_unicode_property(s, cr, &p, (c == 'P'))) - return -1; - c = CLASS_RANGE_BASE; - break; - } - /* fall thru */ -#endif - default: - p--; - ret = lre_parse_escape(&p, s->is_utf16 * 2); - if (ret >= 0) { - c = ret; - } else { - if (ret == -2 && *p != '\0' && strchr("^$\\.*+?()[]{}|/", *p)) { - /* always valid to escape these characters */ - goto normal_char; - } else if (s->is_utf16) { - invalid_escape: - return re_parse_error(s, "invalid escape sequence in regular expression"); - } else { - /* just ignore the '\' */ - goto normal_char; - } - } - break; - } - break; - case '\0': - if (p >= s->buf_end) { - unexpected_end: - return re_parse_error(s, "unexpected end"); - } - /* fall thru */ - default: - normal_char: - /* normal char */ - if (c >= 128) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); - if ((unsigned)c > 0xffff && !s->is_utf16) { - /* XXX: should handle non BMP-1 code points */ - return re_parse_error(s, "malformed unicode char"); - } - } else { - p++; - } - break; - } - *pp = p; - return c; -} - -static int re_emit_range(REParseState *s, const CharRange *cr) -{ - int len, i; - uint32_t high; - - len = (unsigned)cr->len / 2; - if (len >= 65535) - return re_parse_error(s, "too many ranges"); - if (len == 0) { - /* not sure it can really happen. Emit a match that is always - false */ - re_emit_op_u32(s, REOP_char32, -1); - } else { - high = cr->points[cr->len - 1]; - if (high == UINT32_MAX) - high = cr->points[cr->len - 2]; - if (high <= 0xffff) { - /* can use 16 bit ranges with the conversion that 0xffff = - infinity */ - re_emit_op_u16(s, REOP_range, len); - for(i = 0; i < cr->len; i += 2) { - dbuf_put_u16(&s->byte_code, cr->points[i]); - high = cr->points[i + 1] - 1; - if (high == UINT32_MAX - 1) - high = 0xffff; - dbuf_put_u16(&s->byte_code, high); - } - } else { - re_emit_op_u16(s, REOP_range32, len); - for(i = 0; i < cr->len; i += 2) { - dbuf_put_u32(&s->byte_code, cr->points[i]); - dbuf_put_u32(&s->byte_code, cr->points[i + 1] - 1); - } - } - } - return 0; -} - -static int re_parse_char_class(REParseState *s, const uint8_t **pp) -{ - const uint8_t *p; - uint32_t c1, c2; - CharRange cr_s, *cr = &cr_s; - CharRange cr1_s, *cr1 = &cr1_s; - BOOL invert; - - cr_init(cr, s->opaque, lre_realloc); - p = *pp; - p++; /* skip '[' */ - invert = FALSE; - if (*p == '^') { - p++; - invert = TRUE; - } - for(;;) { - if (*p == ']') - break; - c1 = get_class_atom(s, cr1, &p, TRUE); - if ((int)c1 < 0) - goto fail; - if (*p == '-' && p[1] != ']') { - const uint8_t *p0 = p + 1; - if (c1 >= CLASS_RANGE_BASE) { - if (s->is_utf16) { - cr_free(cr1); - goto invalid_class_range; - } - /* Annex B: match '-' character */ - goto class_atom; - } - c2 = get_class_atom(s, cr1, &p0, TRUE); - if ((int)c2 < 0) - goto fail; - if (c2 >= CLASS_RANGE_BASE) { - cr_free(cr1); - if (s->is_utf16) { - goto invalid_class_range; - } - /* Annex B: match '-' character */ - goto class_atom; - } - p = p0; - if (c2 < c1) { - invalid_class_range: - re_parse_error(s, "invalid class range"); - goto fail; - } - if (cr_union_interval(cr, c1, c2)) - goto memory_error; - } else { - class_atom: - if (c1 >= CLASS_RANGE_BASE) { - int ret; - ret = cr_union1(cr, cr1->points, cr1->len); - cr_free(cr1); - if (ret) - goto memory_error; - } else { - if (cr_union_interval(cr, c1, c1)) - goto memory_error; - } - } - } - if (s->ignore_case) { - if (cr_regexp_canonicalize(cr, s->is_utf16)) - goto memory_error; - } - if (invert) { - if (cr_invert(cr)) - goto memory_error; - } - if (re_emit_range(s, cr)) - goto fail; - cr_free(cr); - p++; /* skip ']' */ - *pp = p; - return 0; - memory_error: - re_parse_out_of_memory(s); - fail: - cr_free(cr); - return -1; -} - -/* Return: - - true if the opcodes may not advance the char pointer - - false if the opcodes always advance the char pointer -*/ -static BOOL re_need_check_advance(const uint8_t *bc_buf, int bc_buf_len) -{ - int pos, opcode, len; - uint32_t val; - BOOL ret; - - ret = TRUE; - pos = 0; - while (pos < bc_buf_len) { - opcode = bc_buf[pos]; - len = reopcode_info[opcode].size; - switch(opcode) { - case REOP_range: - val = get_u16(bc_buf + pos + 1); - len += val * 4; - goto simple_char; - case REOP_range32: - val = get_u16(bc_buf + pos + 1); - len += val * 8; - goto simple_char; - case REOP_char: - case REOP_char32: - case REOP_dot: - case REOP_any: - simple_char: - ret = FALSE; - break; - case REOP_line_start: - case REOP_line_end: - case REOP_push_i32: - case REOP_push_char_pos: - case REOP_drop: - case REOP_word_boundary: - case REOP_not_word_boundary: - case REOP_prev: - /* no effect */ - break; - case REOP_save_start: - case REOP_save_end: - case REOP_save_reset: - case REOP_back_reference: - case REOP_backward_back_reference: - break; - default: - /* safe behvior: we cannot predict the outcome */ - return TRUE; - } - pos += len; - } - return ret; -} - -/* return -1 if a simple quantifier cannot be used. Otherwise return - the number of characters in the atom. */ -static int re_is_simple_quantifier(const uint8_t *bc_buf, int bc_buf_len) -{ - int pos, opcode, len, count; - uint32_t val; - - count = 0; - pos = 0; - while (pos < bc_buf_len) { - opcode = bc_buf[pos]; - len = reopcode_info[opcode].size; - switch(opcode) { - case REOP_range: - val = get_u16(bc_buf + pos + 1); - len += val * 4; - goto simple_char; - case REOP_range32: - val = get_u16(bc_buf + pos + 1); - len += val * 8; - goto simple_char; - case REOP_char: - case REOP_char32: - case REOP_dot: - case REOP_any: - simple_char: - count++; - break; - case REOP_line_start: - case REOP_line_end: - case REOP_word_boundary: - case REOP_not_word_boundary: - break; - default: - return -1; - } - pos += len; - } - return count; -} - -/* '*pp' is the first char after '<' */ -static int re_parse_group_name(char *buf, int buf_size, const uint8_t **pp) -{ - const uint8_t *p, *p1; - uint32_t c, d; - char *q; - - p = *pp; - q = buf; - for(;;) { - c = *p; - if (c == '\\') { - p++; - if (*p != 'u') - return -1; - c = lre_parse_escape(&p, 2); // accept surrogate pairs - } else if (c == '>') { - break; - } else if (c >= 128) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); - if (c >= 0xD800 && c <= 0xDBFF) { - d = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1); - if (d >= 0xDC00 && d <= 0xDFFF) { - c = 0x10000 + 0x400 * (c - 0xD800) + (d - 0xDC00); - p = p1; - } - } - } else { - p++; - } - if (c > 0x10FFFF) - return -1; - if (q == buf) { - if (!lre_js_is_ident_first(c)) - return -1; - } else { - if (!lre_js_is_ident_next(c)) - return -1; - } - if ((q - buf + UTF8_CHAR_LEN_MAX + 1) > buf_size) - return -1; - if (c < 128) { - *q++ = c; - } else { - q += unicode_to_utf8((uint8_t*)q, c); - } - } - if (q == buf) - return -1; - *q = '\0'; - p++; - *pp = p; - return 0; -} - -/* if capture_name = NULL: return the number of captures + 1. - Otherwise, return the capture index corresponding to capture_name - or -1 if none */ -static int re_parse_captures(REParseState *s, int *phas_named_captures, - const char *capture_name) -{ - const uint8_t *p; - int capture_index; - char name[TMP_BUF_SIZE]; - - capture_index = 1; - *phas_named_captures = 0; - for (p = s->buf_start; p < s->buf_end; p++) { - switch (*p) { - case '(': - if (p[1] == '?') { - if (p[2] == '<' && p[3] != '=' && p[3] != '!') { - *phas_named_captures = 1; - /* potential named capture */ - if (capture_name) { - p += 3; - if (re_parse_group_name(name, sizeof(name), &p) == 0) { - if (!strcmp(name, capture_name)) - return capture_index; - } - } - capture_index++; - if (capture_index >= CAPTURE_COUNT_MAX) - goto done; - } - } else { - capture_index++; - if (capture_index >= CAPTURE_COUNT_MAX) - goto done; - } - break; - case '\\': - p++; - break; - case '[': - for (p += 1 + (*p == ']'); p < s->buf_end && *p != ']'; p++) { - if (*p == '\\') - p++; - } - break; - } - } - done: - if (capture_name) - return -1; - else - return capture_index; -} - -static int re_count_captures(REParseState *s) -{ - if (s->total_capture_count < 0) { - s->total_capture_count = re_parse_captures(s, &s->has_named_captures, - NULL); - } - return s->total_capture_count; -} - -static BOOL re_has_named_captures(REParseState *s) -{ - if (s->has_named_captures < 0) - re_count_captures(s); - return s->has_named_captures; -} - -static int find_group_name(REParseState *s, const char *name) -{ - const char *p, *buf_end; - size_t len, name_len; - int capture_index; - - name_len = strlen(name); - p = (char *)s->group_names.buf; - buf_end = (char *)s->group_names.buf + s->group_names.size; - capture_index = 1; - while (p < buf_end) { - len = strlen(p); - if (len == name_len && memcmp(name, p, name_len) == 0) - return capture_index; - p += len + 1; - capture_index++; - } - return -1; -} - -static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir); - -static int re_parse_term(REParseState *s, BOOL is_backward_dir) -{ - const uint8_t *p; - int c, last_atom_start, quant_min, quant_max, last_capture_count; - BOOL greedy, add_zero_advance_check, is_neg, is_backward_lookahead; - CharRange cr_s, *cr = &cr_s; - - last_atom_start = -1; - last_capture_count = 0; - p = s->buf_ptr; - c = *p; - switch(c) { - case '^': - p++; - re_emit_op(s, REOP_line_start); - break; - case '$': - p++; - re_emit_op(s, REOP_line_end); - break; - case '.': - p++; - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - if (is_backward_dir) - re_emit_op(s, REOP_prev); - re_emit_op(s, s->dotall ? REOP_any : REOP_dot); - if (is_backward_dir) - re_emit_op(s, REOP_prev); - break; - case '{': - if (s->is_utf16) { - return re_parse_error(s, "syntax error"); - } else if (!is_digit(p[1])) { - /* Annex B: we accept '{' not followed by digits as a - normal atom */ - goto parse_class_atom; - } else { - const uint8_t *p1 = p + 1; - /* Annex B: error if it is like a repetition count */ - parse_digits(&p1, TRUE); - if (*p1 == ',') { - p1++; - if (is_digit(*p1)) { - parse_digits(&p1, TRUE); - } - } - if (*p1 != '}') { - goto parse_class_atom; - } - } - /* fall thru */ - case '*': - case '+': - case '?': - return re_parse_error(s, "nothing to repeat"); - case '(': - if (p[1] == '?') { - if (p[2] == ':') { - p += 3; - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - s->buf_ptr = p; - if (re_parse_disjunction(s, is_backward_dir)) - return -1; - p = s->buf_ptr; - if (re_parse_expect(s, &p, ')')) - return -1; - } else if ((p[2] == '=' || p[2] == '!')) { - is_neg = (p[2] == '!'); - is_backward_lookahead = FALSE; - p += 3; - goto lookahead; - } else if (p[2] == '<' && - (p[3] == '=' || p[3] == '!')) { - int pos; - is_neg = (p[3] == '!'); - is_backward_lookahead = TRUE; - p += 4; - /* lookahead */ - lookahead: - /* Annex B allows lookahead to be used as an atom for - the quantifiers */ - if (!s->is_utf16 && !is_backward_lookahead) { - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - } - pos = re_emit_op_u32(s, REOP_lookahead + is_neg, 0); - s->buf_ptr = p; - if (re_parse_disjunction(s, is_backward_lookahead)) - return -1; - p = s->buf_ptr; - if (re_parse_expect(s, &p, ')')) - return -1; - re_emit_op(s, REOP_match); - /* jump after the 'match' after the lookahead is successful */ - if (dbuf_error(&s->byte_code)) - return -1; - put_u32(s->byte_code.buf + pos, s->byte_code.size - (pos + 4)); - } else if (p[2] == '<') { - p += 3; - if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf), - &p)) { - return re_parse_error(s, "invalid group name"); - } - if (find_group_name(s, s->u.tmp_buf) > 0) { - return re_parse_error(s, "duplicate group name"); - } - /* group name with a trailing zero */ - dbuf_put(&s->group_names, (uint8_t *)s->u.tmp_buf, - strlen(s->u.tmp_buf) + 1); - s->has_named_captures = 1; - goto parse_capture; - } else { - return re_parse_error(s, "invalid group"); - } - } else { - int capture_index; - p++; - /* capture without group name */ - dbuf_putc(&s->group_names, 0); - parse_capture: - if (s->capture_count >= CAPTURE_COUNT_MAX) - return re_parse_error(s, "too many captures"); - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - capture_index = s->capture_count++; - re_emit_op_u8(s, REOP_save_start + is_backward_dir, - capture_index); - - s->buf_ptr = p; - if (re_parse_disjunction(s, is_backward_dir)) - return -1; - p = s->buf_ptr; - - re_emit_op_u8(s, REOP_save_start + 1 - is_backward_dir, - capture_index); - - if (re_parse_expect(s, &p, ')')) - return -1; - } - break; - case '\\': - switch(p[1]) { - case 'b': - case 'B': - re_emit_op(s, REOP_word_boundary + (p[1] != 'b')); - p += 2; - break; - case 'k': - { - const uint8_t *p1; - int dummy_res; - - p1 = p; - if (p1[2] != '<') { - /* annex B: we tolerate invalid group names in non - unicode mode if there is no named capture - definition */ - if (s->is_utf16 || re_has_named_captures(s)) - return re_parse_error(s, "expecting group name"); - else - goto parse_class_atom; - } - p1 += 3; - if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf), - &p1)) { - if (s->is_utf16 || re_has_named_captures(s)) - return re_parse_error(s, "invalid group name"); - else - goto parse_class_atom; - } - c = find_group_name(s, s->u.tmp_buf); - if (c < 0) { - /* no capture name parsed before, try to look - after (inefficient, but hopefully not common */ - c = re_parse_captures(s, &dummy_res, s->u.tmp_buf); - if (c < 0) { - if (s->is_utf16 || re_has_named_captures(s)) - return re_parse_error(s, "group name not defined"); - else - goto parse_class_atom; - } - } - p = p1; - } - goto emit_back_reference; - case '0': - p += 2; - c = 0; - if (s->is_utf16) { - if (is_digit(*p)) { - return re_parse_error(s, "invalid decimal escape in regular expression"); - } - } else { - /* Annex B.1.4: accept legacy octal */ - if (*p >= '0' && *p <= '7') { - c = *p++ - '0'; - if (*p >= '0' && *p <= '7') { - c = (c << 3) + *p++ - '0'; - } - } - } - goto normal_char; - case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': - case '9': - { - const uint8_t *q = ++p; - - c = parse_digits(&p, FALSE); - if (c < 0 || (c >= s->capture_count && c >= re_count_captures(s))) { - if (!s->is_utf16) { - /* Annex B.1.4: accept legacy octal */ - p = q; - if (*p <= '7') { - c = 0; - if (*p <= '3') - c = *p++ - '0'; - if (*p >= '0' && *p <= '7') { - c = (c << 3) + *p++ - '0'; - if (*p >= '0' && *p <= '7') { - c = (c << 3) + *p++ - '0'; - } - } - } else { - c = *p++; - } - goto normal_char; - } - return re_parse_error(s, "back reference out of range in regular expression"); - } - emit_back_reference: - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - re_emit_op_u8(s, REOP_back_reference + is_backward_dir, c); - } - break; - default: - goto parse_class_atom; - } - break; - case '[': - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - if (is_backward_dir) - re_emit_op(s, REOP_prev); - if (re_parse_char_class(s, &p)) - return -1; - if (is_backward_dir) - re_emit_op(s, REOP_prev); - break; - case ']': - case '}': - if (s->is_utf16) - return re_parse_error(s, "syntax error"); - goto parse_class_atom; - default: - parse_class_atom: - c = get_class_atom(s, cr, &p, FALSE); - if ((int)c < 0) - return -1; - normal_char: - last_atom_start = s->byte_code.size; - last_capture_count = s->capture_count; - if (is_backward_dir) - re_emit_op(s, REOP_prev); - if (c >= CLASS_RANGE_BASE) { - int ret; - /* Note: canonicalization is not needed */ - ret = re_emit_range(s, cr); - cr_free(cr); - if (ret) - return -1; - } else { - if (s->ignore_case) - c = lre_canonicalize(c, s->is_utf16); - if (c <= 0xffff) - re_emit_op_u16(s, REOP_char, c); - else - re_emit_op_u32(s, REOP_char32, c); - } - if (is_backward_dir) - re_emit_op(s, REOP_prev); - break; - } - - /* quantifier */ - if (last_atom_start >= 0) { - c = *p; - switch(c) { - case '*': - p++; - quant_min = 0; - quant_max = INT32_MAX; - goto quantifier; - case '+': - p++; - quant_min = 1; - quant_max = INT32_MAX; - goto quantifier; - case '?': - p++; - quant_min = 0; - quant_max = 1; - goto quantifier; - case '{': - { - const uint8_t *p1 = p; - /* As an extension (see ES6 annex B), we accept '{' not - followed by digits as a normal atom */ - if (!is_digit(p[1])) { - if (s->is_utf16) - goto invalid_quant_count; - break; - } - p++; - quant_min = parse_digits(&p, TRUE); - quant_max = quant_min; - if (*p == ',') { - p++; - if (is_digit(*p)) { - quant_max = parse_digits(&p, TRUE); - if (quant_max < quant_min) { - invalid_quant_count: - return re_parse_error(s, "invalid repetition count"); - } - } else { - quant_max = INT32_MAX; /* infinity */ - } - } - if (*p != '}' && !s->is_utf16) { - /* Annex B: normal atom if invalid '{' syntax */ - p = p1; - break; - } - if (re_parse_expect(s, &p, '}')) - return -1; - } - quantifier: - greedy = TRUE; - if (*p == '?') { - p++; - greedy = FALSE; - } - if (last_atom_start < 0) { - return re_parse_error(s, "nothing to repeat"); - } - if (greedy) { - int len, pos; - - if (quant_max > 0) { - /* specific optimization for simple quantifiers */ - if (dbuf_error(&s->byte_code)) - goto out_of_memory; - len = re_is_simple_quantifier(s->byte_code.buf + last_atom_start, - s->byte_code.size - last_atom_start); - if (len > 0) { - re_emit_op(s, REOP_match); - - if (dbuf_insert(&s->byte_code, last_atom_start, 17)) - goto out_of_memory; - pos = last_atom_start; - s->byte_code.buf[pos++] = REOP_simple_greedy_quant; - put_u32(&s->byte_code.buf[pos], - s->byte_code.size - last_atom_start - 17); - pos += 4; - put_u32(&s->byte_code.buf[pos], quant_min); - pos += 4; - put_u32(&s->byte_code.buf[pos], quant_max); - pos += 4; - put_u32(&s->byte_code.buf[pos], len); - pos += 4; - goto done; - } - } - - if (dbuf_error(&s->byte_code)) - goto out_of_memory; - /* the spec tells that if there is no advance when - running the atom after the first quant_min times, - then there is no match. We remove this test when we - are sure the atom always advances the position. */ - add_zero_advance_check = re_need_check_advance(s->byte_code.buf + last_atom_start, - s->byte_code.size - last_atom_start); - } else { - add_zero_advance_check = FALSE; - } - - { - int len, pos; - len = s->byte_code.size - last_atom_start; - if (quant_min == 0) { - /* need to reset the capture in case the atom is - not executed */ - if (last_capture_count != s->capture_count) { - if (dbuf_insert(&s->byte_code, last_atom_start, 3)) - goto out_of_memory; - s->byte_code.buf[last_atom_start++] = REOP_save_reset; - s->byte_code.buf[last_atom_start++] = last_capture_count; - s->byte_code.buf[last_atom_start++] = s->capture_count - 1; - } - if (quant_max == 0) { - s->byte_code.size = last_atom_start; - } else if (quant_max == 1 || quant_max == INT32_MAX) { - BOOL has_goto = (quant_max == INT32_MAX); - if (dbuf_insert(&s->byte_code, last_atom_start, 5 + add_zero_advance_check)) - goto out_of_memory; - s->byte_code.buf[last_atom_start] = REOP_split_goto_first + - greedy; - put_u32(s->byte_code.buf + last_atom_start + 1, - len + 5 * has_goto + add_zero_advance_check * 2); - if (add_zero_advance_check) { - s->byte_code.buf[last_atom_start + 1 + 4] = REOP_push_char_pos; - re_emit_op(s, REOP_check_advance); - } - if (has_goto) - re_emit_goto(s, REOP_goto, last_atom_start); - } else { - if (dbuf_insert(&s->byte_code, last_atom_start, 10 + add_zero_advance_check)) - goto out_of_memory; - pos = last_atom_start; - s->byte_code.buf[pos++] = REOP_push_i32; - put_u32(s->byte_code.buf + pos, quant_max); - pos += 4; - s->byte_code.buf[pos++] = REOP_split_goto_first + greedy; - put_u32(s->byte_code.buf + pos, len + 5 + add_zero_advance_check * 2); - pos += 4; - if (add_zero_advance_check) { - s->byte_code.buf[pos++] = REOP_push_char_pos; - re_emit_op(s, REOP_check_advance); - } - re_emit_goto(s, REOP_loop, last_atom_start + 5); - re_emit_op(s, REOP_drop); - } - } else if (quant_min == 1 && quant_max == INT32_MAX && - !add_zero_advance_check) { - re_emit_goto(s, REOP_split_next_first - greedy, - last_atom_start); - } else { - if (quant_min == 1) { - /* nothing to add */ - } else { - if (dbuf_insert(&s->byte_code, last_atom_start, 5)) - goto out_of_memory; - s->byte_code.buf[last_atom_start] = REOP_push_i32; - put_u32(s->byte_code.buf + last_atom_start + 1, - quant_min); - last_atom_start += 5; - re_emit_goto(s, REOP_loop, last_atom_start); - re_emit_op(s, REOP_drop); - } - if (quant_max == INT32_MAX) { - pos = s->byte_code.size; - re_emit_op_u32(s, REOP_split_goto_first + greedy, - len + 5 + add_zero_advance_check * 2); - if (add_zero_advance_check) - re_emit_op(s, REOP_push_char_pos); - /* copy the atom */ - dbuf_put_self(&s->byte_code, last_atom_start, len); - if (add_zero_advance_check) - re_emit_op(s, REOP_check_advance); - re_emit_goto(s, REOP_goto, pos); - } else if (quant_max > quant_min) { - re_emit_op_u32(s, REOP_push_i32, quant_max - quant_min); - pos = s->byte_code.size; - re_emit_op_u32(s, REOP_split_goto_first + greedy, - len + 5 + add_zero_advance_check * 2); - if (add_zero_advance_check) - re_emit_op(s, REOP_push_char_pos); - /* copy the atom */ - dbuf_put_self(&s->byte_code, last_atom_start, len); - if (add_zero_advance_check) - re_emit_op(s, REOP_check_advance); - re_emit_goto(s, REOP_loop, pos); - re_emit_op(s, REOP_drop); - } - } - last_atom_start = -1; - } - break; - default: - break; - } - } - done: - s->buf_ptr = p; - return 0; - out_of_memory: - return re_parse_out_of_memory(s); -} - -static int re_parse_alternative(REParseState *s, BOOL is_backward_dir) -{ - const uint8_t *p; - int ret; - size_t start, term_start, end, term_size; - - start = s->byte_code.size; - for(;;) { - p = s->buf_ptr; - if (p >= s->buf_end) - break; - if (*p == '|' || *p == ')') - break; - term_start = s->byte_code.size; - ret = re_parse_term(s, is_backward_dir); - if (ret) - return ret; - if (is_backward_dir) { - /* reverse the order of the terms (XXX: inefficient, but - speed is not really critical here) */ - end = s->byte_code.size; - term_size = end - term_start; - if (dbuf_realloc(&s->byte_code, end + term_size)) - return -1; - memmove(s->byte_code.buf + start + term_size, - s->byte_code.buf + start, - end - start); - memcpy(s->byte_code.buf + start, s->byte_code.buf + end, - term_size); - } - } - return 0; -} - -static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir) -{ - int start, len, pos; - - if (lre_check_stack_overflow(s->opaque, 0)) - return re_parse_error(s, "stack overflow"); - - start = s->byte_code.size; - if (re_parse_alternative(s, is_backward_dir)) - return -1; - while (*s->buf_ptr == '|') { - s->buf_ptr++; - - len = s->byte_code.size - start; - - /* insert a split before the first alternative */ - if (dbuf_insert(&s->byte_code, start, 5)) { - return re_parse_out_of_memory(s); - } - s->byte_code.buf[start] = REOP_split_next_first; - put_u32(s->byte_code.buf + start + 1, len + 5); - - pos = re_emit_op_u32(s, REOP_goto, 0); - - if (re_parse_alternative(s, is_backward_dir)) - return -1; - - /* patch the goto */ - len = s->byte_code.size - (pos + 4); - put_u32(s->byte_code.buf + pos, len); - } - return 0; -} - -/* the control flow is recursive so the analysis can be linear */ -static int compute_stack_size(const uint8_t *bc_buf, int bc_buf_len) -{ - int stack_size, stack_size_max, pos, opcode, len; - uint32_t val; - - stack_size = 0; - stack_size_max = 0; - bc_buf += RE_HEADER_LEN; - bc_buf_len -= RE_HEADER_LEN; - pos = 0; - while (pos < bc_buf_len) { - opcode = bc_buf[pos]; - len = reopcode_info[opcode].size; - assert(opcode < REOP_COUNT); - assert((pos + len) <= bc_buf_len); - switch(opcode) { - case REOP_push_i32: - case REOP_push_char_pos: - stack_size++; - if (stack_size > stack_size_max) { - if (stack_size > STACK_SIZE_MAX) - return -1; - stack_size_max = stack_size; - } - break; - case REOP_drop: - case REOP_check_advance: - assert(stack_size > 0); - stack_size--; - break; - case REOP_range: - val = get_u16(bc_buf + pos + 1); - len += val * 4; - break; - case REOP_range32: - val = get_u16(bc_buf + pos + 1); - len += val * 8; - break; - } - pos += len; - } - return stack_size_max; -} - -/* 'buf' must be a zero terminated UTF-8 string of length buf_len. - Return NULL if error and allocate an error message in *perror_msg, - otherwise the compiled bytecode and its length in plen. -*/ -uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size, - const char *buf, size_t buf_len, int re_flags, - void *opaque) -{ - REParseState s_s, *s = &s_s; - int stack_size; - BOOL is_sticky; - - memset(s, 0, sizeof(*s)); - s->opaque = opaque; - s->buf_ptr = (const uint8_t *)buf; - s->buf_end = s->buf_ptr + buf_len; - s->buf_start = s->buf_ptr; - s->re_flags = re_flags; - s->is_utf16 = ((re_flags & LRE_FLAG_UTF16) != 0); - is_sticky = ((re_flags & LRE_FLAG_STICKY) != 0); - s->ignore_case = ((re_flags & LRE_FLAG_IGNORECASE) != 0); - s->dotall = ((re_flags & LRE_FLAG_DOTALL) != 0); - s->capture_count = 1; - s->total_capture_count = -1; - s->has_named_captures = -1; - - dbuf_init2(&s->byte_code, opaque, lre_realloc); - dbuf_init2(&s->group_names, opaque, lre_realloc); - - dbuf_putc(&s->byte_code, re_flags); /* first element is the flags */ - dbuf_putc(&s->byte_code, 0); /* second element is the number of captures */ - dbuf_putc(&s->byte_code, 0); /* stack size */ - dbuf_put_u32(&s->byte_code, 0); /* bytecode length */ - - if (!is_sticky) { - /* iterate thru all positions (about the same as .*?( ... ) ) - . We do it without an explicit loop so that lock step - thread execution will be possible in an optimized - implementation */ - re_emit_op_u32(s, REOP_split_goto_first, 1 + 5); - re_emit_op(s, REOP_any); - re_emit_op_u32(s, REOP_goto, -(5 + 1 + 5)); - } - re_emit_op_u8(s, REOP_save_start, 0); - - if (re_parse_disjunction(s, FALSE)) { - error: - dbuf_free(&s->byte_code); - dbuf_free(&s->group_names); - pstrcpy(error_msg, error_msg_size, s->u.error_msg); - *plen = 0; - return NULL; - } - - re_emit_op_u8(s, REOP_save_end, 0); - - re_emit_op(s, REOP_match); - - if (*s->buf_ptr != '\0') { - re_parse_error(s, "extraneous characters at the end"); - goto error; - } - - if (dbuf_error(&s->byte_code)) { - re_parse_out_of_memory(s); - goto error; - } - - stack_size = compute_stack_size(s->byte_code.buf, s->byte_code.size); - if (stack_size < 0) { - re_parse_error(s, "too many imbricated quantifiers"); - goto error; - } - - s->byte_code.buf[RE_HEADER_CAPTURE_COUNT] = s->capture_count; - s->byte_code.buf[RE_HEADER_STACK_SIZE] = stack_size; - put_u32(s->byte_code.buf + 3, s->byte_code.size - RE_HEADER_LEN); - - /* add the named groups if needed */ - if (s->group_names.size > (s->capture_count - 1)) { - dbuf_put(&s->byte_code, s->group_names.buf, s->group_names.size); - s->byte_code.buf[RE_HEADER_FLAGS] |= LRE_FLAG_NAMED_GROUPS; - } - dbuf_free(&s->group_names); - -#ifdef DUMP_REOP - lre_dump_bytecode(s->byte_code.buf, s->byte_code.size); -#endif - - error_msg[0] = '\0'; - *plen = s->byte_code.size; - return s->byte_code.buf; -} - -static BOOL is_line_terminator(uint32_t c) -{ - return (c == '\n' || c == '\r' || c == CP_LS || c == CP_PS); -} - -static BOOL is_word_char(uint32_t c) -{ - return ((c >= '0' && c <= '9') || - (c >= 'a' && c <= 'z') || - (c >= 'A' && c <= 'Z') || - (c == '_')); -} - -#define GET_CHAR(c, cptr, cbuf_end) \ - do { \ - if (cbuf_type == 0) { \ - c = *cptr++; \ - } else { \ - uint32_t __c1; \ - c = *(uint16_t *)cptr; \ - cptr += 2; \ - if (c >= 0xd800 && c < 0xdc00 && \ - cbuf_type == 2 && cptr < cbuf_end) { \ - __c1 = *(uint16_t *)cptr; \ - if (__c1 >= 0xdc00 && __c1 < 0xe000) { \ - c = (((c & 0x3ff) << 10) | (__c1 & 0x3ff)) + 0x10000; \ - cptr += 2; \ - } \ - } \ - } \ - } while (0) - -#define PEEK_CHAR(c, cptr, cbuf_end) \ - do { \ - if (cbuf_type == 0) { \ - c = cptr[0]; \ - } else { \ - uint32_t __c1; \ - c = ((uint16_t *)cptr)[0]; \ - if (c >= 0xd800 && c < 0xdc00 && \ - cbuf_type == 2 && (cptr + 2) < cbuf_end) { \ - __c1 = ((uint16_t *)cptr)[1]; \ - if (__c1 >= 0xdc00 && __c1 < 0xe000) { \ - c = (((c & 0x3ff) << 10) | (__c1 & 0x3ff)) + 0x10000; \ - } \ - } \ - } \ - } while (0) - -#define PEEK_PREV_CHAR(c, cptr, cbuf_start) \ - do { \ - if (cbuf_type == 0) { \ - c = cptr[-1]; \ - } else { \ - uint32_t __c1; \ - c = ((uint16_t *)cptr)[-1]; \ - if (c >= 0xdc00 && c < 0xe000 && \ - cbuf_type == 2 && (cptr - 4) >= cbuf_start) { \ - __c1 = ((uint16_t *)cptr)[-2]; \ - if (__c1 >= 0xd800 && __c1 < 0xdc00 ) { \ - c = (((__c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000; \ - } \ - } \ - } \ - } while (0) - -#define GET_PREV_CHAR(c, cptr, cbuf_start) \ - do { \ - if (cbuf_type == 0) { \ - cptr--; \ - c = cptr[0]; \ - } else { \ - uint32_t __c1; \ - cptr -= 2; \ - c = ((uint16_t *)cptr)[0]; \ - if (c >= 0xdc00 && c < 0xe000 && \ - cbuf_type == 2 && cptr > cbuf_start) { \ - __c1 = ((uint16_t *)cptr)[-1]; \ - if (__c1 >= 0xd800 && __c1 < 0xdc00 ) { \ - cptr -= 2; \ - c = (((__c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000; \ - } \ - } \ - } \ - } while (0) - -#define PREV_CHAR(cptr, cbuf_start) \ - do { \ - if (cbuf_type == 0) { \ - cptr--; \ - } else { \ - cptr -= 2; \ - if (cbuf_type == 2) { \ - c = ((uint16_t *)cptr)[0]; \ - if (c >= 0xdc00 && c < 0xe000 && cptr > cbuf_start) { \ - c = ((uint16_t *)cptr)[-1]; \ - if (c >= 0xd800 && c < 0xdc00) \ - cptr -= 2; \ - } \ - } \ - } \ - } while (0) - -typedef uintptr_t StackInt; - -typedef enum { - RE_EXEC_STATE_SPLIT, - RE_EXEC_STATE_LOOKAHEAD, - RE_EXEC_STATE_NEGATIVE_LOOKAHEAD, - RE_EXEC_STATE_GREEDY_QUANT, -} REExecStateEnum; - -typedef struct REExecState { - REExecStateEnum type : 8; - uint8_t stack_len; - size_t count; /* only used for RE_EXEC_STATE_GREEDY_QUANT */ - const uint8_t *cptr; - const uint8_t *pc; - void *buf[0]; -} REExecState; - -typedef struct { - const uint8_t *cbuf; - const uint8_t *cbuf_end; - /* 0 = 8 bit chars, 1 = 16 bit chars, 2 = 16 bit chars, UTF-16 */ - int cbuf_type; - int capture_count; - int stack_size_max; - BOOL multi_line; - BOOL ignore_case; - BOOL is_utf16; - void *opaque; /* used for stack overflow check */ - - size_t state_size; - uint8_t *state_stack; - size_t state_stack_size; - size_t state_stack_len; -} REExecContext; - -static int push_state(REExecContext *s, - uint8_t **capture, - StackInt *stack, size_t stack_len, - const uint8_t *pc, const uint8_t *cptr, - REExecStateEnum type, size_t count) -{ - REExecState *rs; - uint8_t *new_stack; - size_t new_size, i, n; - StackInt *stack_buf; - - if (unlikely((s->state_stack_len + 1) > s->state_stack_size)) { - /* reallocate the stack */ - new_size = s->state_stack_size * 3 / 2; - if (new_size < 8) - new_size = 8; - new_stack = lre_realloc(s->opaque, s->state_stack, new_size * s->state_size); - if (!new_stack) - return -1; - s->state_stack_size = new_size; - s->state_stack = new_stack; - } - rs = (REExecState *)(s->state_stack + s->state_stack_len * s->state_size); - s->state_stack_len++; - rs->type = type; - rs->count = count; - rs->stack_len = stack_len; - rs->cptr = cptr; - rs->pc = pc; - n = 2 * s->capture_count; - for(i = 0; i < n; i++) - rs->buf[i] = capture[i]; - stack_buf = (StackInt *)(rs->buf + n); - for(i = 0; i < stack_len; i++) - stack_buf[i] = stack[i]; - return 0; -} - -/* return 1 if match, 0 if not match or -1 if error. */ -static intptr_t lre_exec_backtrack(REExecContext *s, uint8_t **capture, - StackInt *stack, int stack_len, - const uint8_t *pc, const uint8_t *cptr, - BOOL no_recurse) -{ - int opcode, ret; - int cbuf_type; - uint32_t val, c; - const uint8_t *cbuf_end; - - cbuf_type = s->cbuf_type; - cbuf_end = s->cbuf_end; - - for(;;) { - // printf("top=%p: pc=%d\n", th_list.top, (int)(pc - (bc_buf + RE_HEADER_LEN))); - opcode = *pc++; - switch(opcode) { - case REOP_match: - { - REExecState *rs; - if (no_recurse) - return (intptr_t)cptr; - ret = 1; - goto recurse; - no_match: - if (no_recurse) - return 0; - ret = 0; - recurse: - for(;;) { - if (s->state_stack_len == 0) - return ret; - rs = (REExecState *)(s->state_stack + - (s->state_stack_len - 1) * s->state_size); - if (rs->type == RE_EXEC_STATE_SPLIT) { - if (!ret) { - pop_state: - memcpy(capture, rs->buf, - sizeof(capture[0]) * 2 * s->capture_count); - pop_state1: - pc = rs->pc; - cptr = rs->cptr; - stack_len = rs->stack_len; - memcpy(stack, rs->buf + 2 * s->capture_count, - stack_len * sizeof(stack[0])); - s->state_stack_len--; - break; - } - } else if (rs->type == RE_EXEC_STATE_GREEDY_QUANT) { - if (!ret) { - uint32_t char_count, i; - memcpy(capture, rs->buf, - sizeof(capture[0]) * 2 * s->capture_count); - stack_len = rs->stack_len; - memcpy(stack, rs->buf + 2 * s->capture_count, - stack_len * sizeof(stack[0])); - pc = rs->pc; - cptr = rs->cptr; - /* go backward */ - char_count = get_u32(pc + 12); - for(i = 0; i < char_count; i++) { - PREV_CHAR(cptr, s->cbuf); - } - pc = (pc + 16) + (int)get_u32(pc); - rs->cptr = cptr; - rs->count--; - if (rs->count == 0) { - s->state_stack_len--; - } - break; - } - } else { - ret = ((rs->type == RE_EXEC_STATE_LOOKAHEAD && ret) || - (rs->type == RE_EXEC_STATE_NEGATIVE_LOOKAHEAD && !ret)); - if (ret) { - /* keep the capture in case of positive lookahead */ - if (rs->type == RE_EXEC_STATE_LOOKAHEAD) - goto pop_state1; - else - goto pop_state; - } - } - s->state_stack_len--; - } - } - break; - case REOP_char32: - val = get_u32(pc); - pc += 4; - goto test_char; - case REOP_char: - val = get_u16(pc); - pc += 2; - test_char: - if (cptr >= cbuf_end) - goto no_match; - GET_CHAR(c, cptr, cbuf_end); - if (s->ignore_case) { - c = lre_canonicalize(c, s->is_utf16); - } - if (val != c) - goto no_match; - break; - case REOP_split_goto_first: - case REOP_split_next_first: - { - const uint8_t *pc1; - - val = get_u32(pc); - pc += 4; - if (opcode == REOP_split_next_first) { - pc1 = pc + (int)val; - } else { - pc1 = pc; - pc = pc + (int)val; - } - ret = push_state(s, capture, stack, stack_len, - pc1, cptr, RE_EXEC_STATE_SPLIT, 0); - if (ret < 0) - return -1; - break; - } - case REOP_lookahead: - case REOP_negative_lookahead: - val = get_u32(pc); - pc += 4; - ret = push_state(s, capture, stack, stack_len, - pc + (int)val, cptr, - RE_EXEC_STATE_LOOKAHEAD + opcode - REOP_lookahead, - 0); - if (ret < 0) - return -1; - break; - - case REOP_goto: - val = get_u32(pc); - pc += 4 + (int)val; - break; - case REOP_line_start: - if (cptr == s->cbuf) - break; - if (!s->multi_line) - goto no_match; - PEEK_PREV_CHAR(c, cptr, s->cbuf); - if (!is_line_terminator(c)) - goto no_match; - break; - case REOP_line_end: - if (cptr == cbuf_end) - break; - if (!s->multi_line) - goto no_match; - PEEK_CHAR(c, cptr, cbuf_end); - if (!is_line_terminator(c)) - goto no_match; - break; - case REOP_dot: - if (cptr == cbuf_end) - goto no_match; - GET_CHAR(c, cptr, cbuf_end); - if (is_line_terminator(c)) - goto no_match; - break; - case REOP_any: - if (cptr == cbuf_end) - goto no_match; - GET_CHAR(c, cptr, cbuf_end); - break; - case REOP_save_start: - case REOP_save_end: - val = *pc++; - assert(val < s->capture_count); - capture[2 * val + opcode - REOP_save_start] = (uint8_t *)cptr; - break; - case REOP_save_reset: - { - uint32_t val2; - val = pc[0]; - val2 = pc[1]; - pc += 2; - assert(val2 < s->capture_count); - while (val <= val2) { - capture[2 * val] = NULL; - capture[2 * val + 1] = NULL; - val++; - } - } - break; - case REOP_push_i32: - val = get_u32(pc); - pc += 4; - stack[stack_len++] = val; - break; - case REOP_drop: - stack_len--; - break; - case REOP_loop: - val = get_u32(pc); - pc += 4; - if (--stack[stack_len - 1] != 0) { - pc += (int)val; - } - break; - case REOP_push_char_pos: - stack[stack_len++] = (uintptr_t)cptr; - break; - case REOP_check_advance: - if (stack[--stack_len] == (uintptr_t)cptr) - goto no_match; - break; - case REOP_word_boundary: - case REOP_not_word_boundary: - { - BOOL v1, v2; - /* char before */ - if (cptr == s->cbuf) { - v1 = FALSE; - } else { - PEEK_PREV_CHAR(c, cptr, s->cbuf); - v1 = is_word_char(c); - } - /* current char */ - if (cptr >= cbuf_end) { - v2 = FALSE; - } else { - PEEK_CHAR(c, cptr, cbuf_end); - v2 = is_word_char(c); - } - if (v1 ^ v2 ^ (REOP_not_word_boundary - opcode)) - goto no_match; - } - break; - case REOP_back_reference: - case REOP_backward_back_reference: - { - const uint8_t *cptr1, *cptr1_end, *cptr1_start; - uint32_t c1, c2; - - val = *pc++; - if (val >= s->capture_count) - goto no_match; - cptr1_start = capture[2 * val]; - cptr1_end = capture[2 * val + 1]; - if (!cptr1_start || !cptr1_end) - break; - if (opcode == REOP_back_reference) { - cptr1 = cptr1_start; - while (cptr1 < cptr1_end) { - if (cptr >= cbuf_end) - goto no_match; - GET_CHAR(c1, cptr1, cptr1_end); - GET_CHAR(c2, cptr, cbuf_end); - if (s->ignore_case) { - c1 = lre_canonicalize(c1, s->is_utf16); - c2 = lre_canonicalize(c2, s->is_utf16); - } - if (c1 != c2) - goto no_match; - } - } else { - cptr1 = cptr1_end; - while (cptr1 > cptr1_start) { - if (cptr == s->cbuf) - goto no_match; - GET_PREV_CHAR(c1, cptr1, cptr1_start); - GET_PREV_CHAR(c2, cptr, s->cbuf); - if (s->ignore_case) { - c1 = lre_canonicalize(c1, s->is_utf16); - c2 = lre_canonicalize(c2, s->is_utf16); - } - if (c1 != c2) - goto no_match; - } - } - } - break; - case REOP_range: - { - int n; - uint32_t low, high, idx_min, idx_max, idx; - - n = get_u16(pc); /* n must be >= 1 */ - pc += 2; - if (cptr >= cbuf_end) - goto no_match; - GET_CHAR(c, cptr, cbuf_end); - if (s->ignore_case) { - c = lre_canonicalize(c, s->is_utf16); - } - idx_min = 0; - low = get_u16(pc + 0 * 4); - if (c < low) - goto no_match; - idx_max = n - 1; - high = get_u16(pc + idx_max * 4 + 2); - /* 0xffff in for last value means +infinity */ - if (unlikely(c >= 0xffff) && high == 0xffff) - goto range_match; - if (c > high) - goto no_match; - while (idx_min <= idx_max) { - idx = (idx_min + idx_max) / 2; - low = get_u16(pc + idx * 4); - high = get_u16(pc + idx * 4 + 2); - if (c < low) - idx_max = idx - 1; - else if (c > high) - idx_min = idx + 1; - else - goto range_match; - } - goto no_match; - range_match: - pc += 4 * n; - } - break; - case REOP_range32: - { - int n; - uint32_t low, high, idx_min, idx_max, idx; - - n = get_u16(pc); /* n must be >= 1 */ - pc += 2; - if (cptr >= cbuf_end) - goto no_match; - GET_CHAR(c, cptr, cbuf_end); - if (s->ignore_case) { - c = lre_canonicalize(c, s->is_utf16); - } - idx_min = 0; - low = get_u32(pc + 0 * 8); - if (c < low) - goto no_match; - idx_max = n - 1; - high = get_u32(pc + idx_max * 8 + 4); - if (c > high) - goto no_match; - while (idx_min <= idx_max) { - idx = (idx_min + idx_max) / 2; - low = get_u32(pc + idx * 8); - high = get_u32(pc + idx * 8 + 4); - if (c < low) - idx_max = idx - 1; - else if (c > high) - idx_min = idx + 1; - else - goto range32_match; - } - goto no_match; - range32_match: - pc += 8 * n; - } - break; - case REOP_prev: - /* go to the previous char */ - if (cptr == s->cbuf) - goto no_match; - PREV_CHAR(cptr, s->cbuf); - break; - case REOP_simple_greedy_quant: - { - uint32_t next_pos, quant_min, quant_max; - size_t q; - intptr_t res; - const uint8_t *pc1; - - next_pos = get_u32(pc); - quant_min = get_u32(pc + 4); - quant_max = get_u32(pc + 8); - pc += 16; - pc1 = pc; - pc += (int)next_pos; - - q = 0; - for(;;) { - res = lre_exec_backtrack(s, capture, stack, stack_len, - pc1, cptr, TRUE); - if (res == -1) - return res; - if (!res) - break; - cptr = (uint8_t *)res; - q++; - if (q >= quant_max && quant_max != INT32_MAX) - break; - } - if (q < quant_min) - goto no_match; - if (q > quant_min) { - /* will examine all matches down to quant_min */ - ret = push_state(s, capture, stack, stack_len, - pc1 - 16, cptr, - RE_EXEC_STATE_GREEDY_QUANT, - q - quant_min); - if (ret < 0) - return -1; - } - } - break; - default: - abort(); - } - } -} - -/* Return 1 if match, 0 if not match or -1 if error. cindex is the - starting position of the match and must be such as 0 <= cindex <= - clen. */ -int lre_exec(uint8_t **capture, - const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen, - int cbuf_type, void *opaque) -{ - REExecContext s_s, *s = &s_s; - int re_flags, i, alloca_size, ret; - StackInt *stack_buf; - - re_flags = bc_buf[RE_HEADER_FLAGS]; - s->multi_line = (re_flags & LRE_FLAG_MULTILINE) != 0; - s->ignore_case = (re_flags & LRE_FLAG_IGNORECASE) != 0; - s->is_utf16 = (re_flags & LRE_FLAG_UTF16) != 0; - s->capture_count = bc_buf[RE_HEADER_CAPTURE_COUNT]; - s->stack_size_max = bc_buf[RE_HEADER_STACK_SIZE]; - s->cbuf = cbuf; - s->cbuf_end = cbuf + (clen << cbuf_type); - s->cbuf_type = cbuf_type; - if (s->cbuf_type == 1 && s->is_utf16) - s->cbuf_type = 2; - s->opaque = opaque; - - s->state_size = sizeof(REExecState) + - s->capture_count * sizeof(capture[0]) * 2 + - s->stack_size_max * sizeof(stack_buf[0]); - s->state_stack = NULL; - s->state_stack_len = 0; - s->state_stack_size = 0; - - for(i = 0; i < s->capture_count * 2; i++) - capture[i] = NULL; - alloca_size = s->stack_size_max * sizeof(stack_buf[0]); - stack_buf = alloca(alloca_size); - ret = lre_exec_backtrack(s, capture, stack_buf, 0, bc_buf + RE_HEADER_LEN, - cbuf + (cindex << cbuf_type), FALSE); - lre_realloc(s->opaque, s->state_stack, 0); - return ret; -} - -int lre_get_capture_count(const uint8_t *bc_buf) -{ - return bc_buf[RE_HEADER_CAPTURE_COUNT]; -} - -int lre_get_flags(const uint8_t *bc_buf) -{ - return bc_buf[RE_HEADER_FLAGS]; -} - -/* Return NULL if no group names. Otherwise, return a pointer to - 'capture_count - 1' zero terminated UTF-8 strings. */ -const char *lre_get_groupnames(const uint8_t *bc_buf) -{ - uint32_t re_bytecode_len; - if ((lre_get_flags(bc_buf) & LRE_FLAG_NAMED_GROUPS) == 0) - return NULL; - re_bytecode_len = get_u32(bc_buf + 3); - return (const char *)(bc_buf + 7 + re_bytecode_len); -} - -#ifdef TEST - -BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size) -{ - return FALSE; -} - -void *lre_realloc(void *opaque, void *ptr, size_t size) -{ - return realloc(ptr, size); -} - -int main(int argc, char **argv) -{ - int len, ret, i; - uint8_t *bc; - char error_msg[64]; - uint8_t *capture[CAPTURE_COUNT_MAX * 2]; - const char *input; - int input_len, capture_count; - - if (argc < 3) { - printf("usage: %s regexp input\n", argv[0]); - exit(1); - } - bc = lre_compile(&len, error_msg, sizeof(error_msg), argv[1], - strlen(argv[1]), 0, NULL); - if (!bc) { - fprintf(stderr, "error: %s\n", error_msg); - exit(1); - } - - input = argv[2]; - input_len = strlen(input); - - ret = lre_exec(capture, bc, (uint8_t *)input, 0, input_len, 0, NULL); - printf("ret=%d\n", ret); - if (ret == 1) { - capture_count = lre_get_capture_count(bc); - for(i = 0; i < 2 * capture_count; i++) { - uint8_t *ptr; - ptr = capture[i]; - printf("%d: ", i); - if (!ptr) - printf(""); - else - printf("%u", (int)(ptr - (uint8_t *)input)); - printf("\n"); - } - } - return 0; -} -#endif diff --git a/deps/quickjs/libregexp.h b/deps/quickjs/libregexp.h deleted file mode 100644 index c0bc58d0..00000000 --- a/deps/quickjs/libregexp.h +++ /dev/null @@ -1,93 +0,0 @@ -/* - * Regular Expression Engine - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef LIBREGEXP_H -#define LIBREGEXP_H - -#include - -#include "libunicode.h" - -#define LRE_BOOL int /* for documentation purposes */ - -#define LRE_FLAG_GLOBAL (1 << 0) -#define LRE_FLAG_IGNORECASE (1 << 1) -#define LRE_FLAG_MULTILINE (1 << 2) -#define LRE_FLAG_DOTALL (1 << 3) -#define LRE_FLAG_UTF16 (1 << 4) -#define LRE_FLAG_STICKY (1 << 5) -#define LRE_FLAG_INDICES (1 << 6) /* Unused by libregexp, just recorded. */ - -#define LRE_FLAG_NAMED_GROUPS (1 << 7) /* named groups are present in the regexp */ - -uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size, - const char *buf, size_t buf_len, int re_flags, - void *opaque); -int lre_get_capture_count(const uint8_t *bc_buf); -int lre_get_flags(const uint8_t *bc_buf); -const char *lre_get_groupnames(const uint8_t *bc_buf); -int lre_exec(uint8_t **capture, - const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen, - int cbuf_type, void *opaque); - -int lre_parse_escape(const uint8_t **pp, int allow_utf16); -LRE_BOOL lre_is_space(int c); - -/* must be provided by the user */ -LRE_BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size); -void *lre_realloc(void *opaque, void *ptr, size_t size); - -/* JS identifier test */ -extern uint32_t const lre_id_start_table_ascii[4]; -extern uint32_t const lre_id_continue_table_ascii[4]; - -static inline int lre_js_is_ident_first(int c) -{ - if ((uint32_t)c < 128) { - return (lre_id_start_table_ascii[c >> 5] >> (c & 31)) & 1; - } else { -#ifdef CONFIG_ALL_UNICODE - return lre_is_id_start(c); -#else - return !lre_is_space(c); -#endif - } -} - -static inline int lre_js_is_ident_next(int c) -{ - if ((uint32_t)c < 128) { - return (lre_id_continue_table_ascii[c >> 5] >> (c & 31)) & 1; - } else { - /* ZWNJ and ZWJ are accepted in identifiers */ -#ifdef CONFIG_ALL_UNICODE - return lre_is_id_continue(c) || c == 0x200C || c == 0x200D; -#else - return !lre_is_space(c) || c == 0x200C || c == 0x200D; -#endif - } -} - -#undef LRE_BOOL - -#endif /* LIBREGEXP_H */ diff --git a/deps/quickjs/libunicode-table.h b/deps/quickjs/libunicode-table.h deleted file mode 100644 index 513ed94b..00000000 --- a/deps/quickjs/libunicode-table.h +++ /dev/null @@ -1,4486 +0,0 @@ -/* Compressed unicode tables */ -/* Automatically generated file - do not edit */ - -#include - -static const uint32_t case_conv_table1[370] = { - 0x00209a30, 0x00309a00, 0x005a8173, 0x00601730, - 0x006c0730, 0x006f81b3, 0x00701700, 0x007c0700, - 0x007f8100, 0x00803040, 0x009801c3, 0x00988190, - 0x00990640, 0x009c9040, 0x00a481b4, 0x00a52e40, - 0x00bc0130, 0x00bc8640, 0x00bf8170, 0x00c00100, - 0x00c08130, 0x00c10440, 0x00c30130, 0x00c38240, - 0x00c48230, 0x00c58240, 0x00c70130, 0x00c78130, - 0x00c80130, 0x00c88240, 0x00c98130, 0x00ca0130, - 0x00ca8100, 0x00cb0130, 0x00cb8130, 0x00cc0240, - 0x00cd0100, 0x00ce0130, 0x00ce8130, 0x00cf0100, - 0x00cf8130, 0x00d00640, 0x00d30130, 0x00d38240, - 0x00d48130, 0x00d60240, 0x00d70130, 0x00d78240, - 0x00d88230, 0x00d98440, 0x00db8130, 0x00dc0240, - 0x00de0240, 0x00df8100, 0x00e20350, 0x00e38350, - 0x00e50350, 0x00e69040, 0x00ee8100, 0x00ef1240, - 0x00f801b4, 0x00f88350, 0x00fa0240, 0x00fb0130, - 0x00fb8130, 0x00fc2840, 0x01100130, 0x01111240, - 0x011d0131, 0x011d8240, 0x011e8130, 0x011f0131, - 0x011f8201, 0x01208240, 0x01218130, 0x01220130, - 0x01228130, 0x01230a40, 0x01280101, 0x01288101, - 0x01290101, 0x01298100, 0x012a0100, 0x012b0200, - 0x012c8100, 0x012d8100, 0x012e0101, 0x01300100, - 0x01308101, 0x01318100, 0x01328101, 0x01330101, - 0x01340100, 0x01348100, 0x01350101, 0x01358101, - 0x01360101, 0x01378100, 0x01388101, 0x01390100, - 0x013a8100, 0x013e8101, 0x01400100, 0x01410101, - 0x01418100, 0x01438101, 0x01440100, 0x01448100, - 0x01450200, 0x01460100, 0x01490100, 0x014e8101, - 0x014f0101, 0x01a28173, 0x01b80440, 0x01bb0240, - 0x01bd8300, 0x01bf8130, 0x01c30130, 0x01c40330, - 0x01c60130, 0x01c70230, 0x01c801d0, 0x01c89130, - 0x01d18930, 0x01d60100, 0x01d68300, 0x01d801d3, - 0x01d89100, 0x01e10173, 0x01e18900, 0x01e60100, - 0x01e68200, 0x01e78130, 0x01e80173, 0x01e88173, - 0x01ea8173, 0x01eb0173, 0x01eb8100, 0x01ec1840, - 0x01f80173, 0x01f88173, 0x01f90100, 0x01f98100, - 0x01fa01a0, 0x01fa8173, 0x01fb8240, 0x01fc8130, - 0x01fd0240, 0x01fe8330, 0x02001030, 0x02082030, - 0x02182000, 0x02281000, 0x02302240, 0x02453640, - 0x02600130, 0x02608e40, 0x02678100, 0x02686040, - 0x0298a630, 0x02b0a600, 0x02c381b5, 0x08502631, - 0x08638131, 0x08668131, 0x08682b00, 0x087e8300, - 0x09d05011, 0x09f80610, 0x09fc0620, 0x0e400174, - 0x0e408174, 0x0e410174, 0x0e418174, 0x0e420174, - 0x0e428174, 0x0e430174, 0x0e438180, 0x0e440180, - 0x0e482b30, 0x0e5e8330, 0x0ebc8101, 0x0ebe8101, - 0x0ec70101, 0x0f007e40, 0x0f3f1840, 0x0f4b01b5, - 0x0f4b81b6, 0x0f4c01b6, 0x0f4c81b6, 0x0f4d01b7, - 0x0f4d8180, 0x0f4f0130, 0x0f506040, 0x0f800800, - 0x0f840830, 0x0f880600, 0x0f8c0630, 0x0f900800, - 0x0f940830, 0x0f980800, 0x0f9c0830, 0x0fa00600, - 0x0fa40630, 0x0fa801b0, 0x0fa88100, 0x0fa901d3, - 0x0fa98100, 0x0faa01d3, 0x0faa8100, 0x0fab01d3, - 0x0fab8100, 0x0fac8130, 0x0fad8130, 0x0fae8130, - 0x0faf8130, 0x0fb00800, 0x0fb40830, 0x0fb80200, - 0x0fb90400, 0x0fbb0200, 0x0fbc0201, 0x0fbd0201, - 0x0fbe0201, 0x0fc008b7, 0x0fc40867, 0x0fc808b8, - 0x0fcc0868, 0x0fd008b8, 0x0fd40868, 0x0fd80200, - 0x0fd901b9, 0x0fd981b1, 0x0fda01b9, 0x0fdb01b1, - 0x0fdb81d7, 0x0fdc0230, 0x0fdd0230, 0x0fde0161, - 0x0fdf0173, 0x0fe101b9, 0x0fe181b2, 0x0fe201ba, - 0x0fe301b2, 0x0fe381d8, 0x0fe40430, 0x0fe60162, - 0x0fe80200, 0x0fe901d0, 0x0fe981d0, 0x0feb01b0, - 0x0feb81d0, 0x0fec0230, 0x0fed0230, 0x0ff00201, - 0x0ff101d3, 0x0ff181d3, 0x0ff201ba, 0x0ff28101, - 0x0ff301b0, 0x0ff381d3, 0x0ff40230, 0x0ff50230, - 0x0ff60131, 0x0ff901ba, 0x0ff981b2, 0x0ffa01bb, - 0x0ffb01b2, 0x0ffb81d9, 0x0ffc0230, 0x0ffd0230, - 0x0ffe0162, 0x109301a0, 0x109501a0, 0x109581a0, - 0x10990131, 0x10a70101, 0x10b01031, 0x10b81001, - 0x10c18240, 0x125b1a31, 0x12681a01, 0x16003031, - 0x16183001, 0x16300240, 0x16310130, 0x16318130, - 0x16320130, 0x16328100, 0x16330100, 0x16338640, - 0x16368130, 0x16370130, 0x16378130, 0x16380130, - 0x16390240, 0x163a8240, 0x163f0230, 0x16406440, - 0x16758440, 0x16790240, 0x16802600, 0x16938100, - 0x16968100, 0x53202e40, 0x53401c40, 0x53910e40, - 0x53993e40, 0x53bc8440, 0x53be8130, 0x53bf0a40, - 0x53c58240, 0x53c68130, 0x53c80440, 0x53ca0101, - 0x53cb1440, 0x53d50130, 0x53d58130, 0x53d60130, - 0x53d68130, 0x53d70130, 0x53d80130, 0x53d88130, - 0x53d90130, 0x53d98131, 0x53da1040, 0x53e20131, - 0x53e28130, 0x53e30130, 0x53e38440, 0x53e80240, - 0x53eb0440, 0x53fa8240, 0x55a98101, 0x55b85020, - 0x7d8001b2, 0x7d8081b2, 0x7d8101b2, 0x7d8181da, - 0x7d8201da, 0x7d8281b3, 0x7d8301b3, 0x7d8981bb, - 0x7d8a01bb, 0x7d8a81bb, 0x7d8b01bc, 0x7d8b81bb, - 0x7f909a31, 0x7fa09a01, 0x82002831, 0x82142801, - 0x82582431, 0x826c2401, 0x82b80b31, 0x82be0f31, - 0x82c60731, 0x82ca0231, 0x82cb8b01, 0x82d18f01, - 0x82d98701, 0x82dd8201, 0x86403331, 0x86603301, - 0x8c502031, 0x8c602001, 0xb7202031, 0xb7302001, - 0xf4802231, 0xf4912201, -}; - -static const uint8_t case_conv_table2[370] = { - 0x01, 0x00, 0x9c, 0x06, 0x07, 0x4d, 0x03, 0x04, - 0x10, 0x00, 0x8f, 0x0b, 0x00, 0x00, 0x11, 0x00, - 0x08, 0x00, 0x53, 0x4a, 0x51, 0x00, 0x52, 0x00, - 0x53, 0x00, 0x3a, 0x54, 0x55, 0x00, 0x57, 0x59, - 0x3f, 0x5d, 0x5c, 0x00, 0x46, 0x61, 0x63, 0x42, - 0x64, 0x00, 0x66, 0x00, 0x68, 0x00, 0x6a, 0x00, - 0x6c, 0x00, 0x6e, 0x00, 0x00, 0x40, 0x00, 0x00, - 0x00, 0x00, 0x1a, 0x00, 0x93, 0x00, 0x00, 0x20, - 0x35, 0x00, 0x27, 0x00, 0x21, 0x00, 0x24, 0x22, - 0x2a, 0x00, 0x13, 0x6b, 0x6d, 0x00, 0x26, 0x24, - 0x27, 0x14, 0x16, 0x18, 0x1b, 0x1c, 0x3e, 0x1e, - 0x3f, 0x1f, 0x39, 0x3d, 0x22, 0x21, 0x41, 0x1e, - 0x40, 0x25, 0x25, 0x26, 0x28, 0x20, 0x2a, 0x48, - 0x2c, 0x43, 0x2e, 0x4b, 0x30, 0x4c, 0x32, 0x44, - 0x42, 0x99, 0x00, 0x00, 0x95, 0x8f, 0x7d, 0x7e, - 0x83, 0x84, 0x12, 0x80, 0x82, 0x76, 0x77, 0x12, - 0x7b, 0xa3, 0x7c, 0x78, 0x79, 0x8a, 0x92, 0x98, - 0xa6, 0xa0, 0x85, 0x00, 0x9a, 0xa1, 0x93, 0x75, - 0x33, 0x95, 0x00, 0x8e, 0x00, 0x74, 0x99, 0x98, - 0x97, 0x96, 0x00, 0x00, 0x9e, 0x00, 0x9c, 0x00, - 0xa1, 0xa0, 0x15, 0x2e, 0x2f, 0x30, 0xb4, 0xb5, - 0x4f, 0xaa, 0xa9, 0x12, 0x14, 0x1e, 0x21, 0x22, - 0x22, 0x2a, 0x34, 0x35, 0xa6, 0xa7, 0x36, 0x1f, - 0x49, 0x00, 0x00, 0x97, 0x01, 0x5a, 0xda, 0x1d, - 0x36, 0x05, 0x00, 0xc4, 0xc3, 0xc6, 0xc5, 0xc8, - 0xc7, 0xca, 0xc9, 0xcc, 0xcb, 0xc4, 0xd5, 0x45, - 0xd6, 0x42, 0xd7, 0x46, 0xd8, 0xce, 0xd0, 0xd2, - 0xd4, 0xda, 0xd9, 0xee, 0xf6, 0xfe, 0x0e, 0x07, - 0x0f, 0x80, 0x9f, 0x00, 0x21, 0x80, 0xa3, 0xed, - 0x00, 0xc0, 0x40, 0xc6, 0x60, 0xe7, 0xdb, 0xe6, - 0x99, 0xc0, 0x00, 0x00, 0x06, 0x60, 0xdc, 0x29, - 0xfd, 0x15, 0x12, 0x06, 0x16, 0xf8, 0xdd, 0x06, - 0x15, 0x12, 0x84, 0x08, 0xc6, 0x16, 0xff, 0xdf, - 0x03, 0xc0, 0x40, 0x00, 0x46, 0x60, 0xde, 0xe0, - 0x6d, 0x37, 0x38, 0x39, 0x15, 0x14, 0x17, 0x16, - 0x00, 0x1a, 0x19, 0x1c, 0x1b, 0x00, 0x5f, 0xb7, - 0x65, 0x44, 0x47, 0x00, 0x4f, 0x62, 0x4e, 0x50, - 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0xa3, 0xa4, - 0xa5, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb6, 0x00, - 0x00, 0x5a, 0x00, 0x47, 0x00, 0x5b, 0x56, 0x58, - 0x60, 0x5e, 0x70, 0x69, 0x6f, 0x4e, 0x00, 0x3b, - 0x67, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x45, 0xa8, - 0x8a, 0x8b, 0x8c, 0xab, 0xac, 0x58, 0x58, 0xaf, - 0x94, 0xb0, 0x6f, 0xb2, 0x5d, 0x5c, 0x5f, 0x5e, - 0x61, 0x60, 0x66, 0x67, 0x68, 0x69, 0x62, 0x63, - 0x64, 0x65, 0x6b, 0x6a, 0x6d, 0x6c, 0x6f, 0x6e, - 0x71, 0x70, -}; - -static const uint16_t case_conv_ext[58] = { - 0x0399, 0x0308, 0x0301, 0x03a5, 0x0313, 0x0300, 0x0342, 0x0391, - 0x0397, 0x03a9, 0x0046, 0x0049, 0x004c, 0x0053, 0x0069, 0x0307, - 0x02bc, 0x004e, 0x004a, 0x030c, 0x0535, 0x0552, 0x0048, 0x0331, - 0x0054, 0x0057, 0x030a, 0x0059, 0x0041, 0x02be, 0x1f08, 0x1f80, - 0x1f28, 0x1f90, 0x1f68, 0x1fa0, 0x1fba, 0x0386, 0x1fb3, 0x1fca, - 0x0389, 0x1fc3, 0x03a1, 0x1ffa, 0x038f, 0x1ff3, 0x0544, 0x0546, - 0x053b, 0x054e, 0x053d, 0x03b8, 0x0462, 0xa64a, 0x1e60, 0x03c9, - 0x006b, 0x00e5, -}; - -static const uint8_t unicode_prop_Cased1_table[196] = { - 0x40, 0xa9, 0x80, 0x8e, 0x80, 0xfc, 0x80, 0xd3, - 0x80, 0x8c, 0x80, 0x8d, 0x81, 0x8d, 0x02, 0x80, - 0xe1, 0x80, 0x91, 0x85, 0x9a, 0x01, 0x00, 0x01, - 0x11, 0x00, 0x01, 0x04, 0x08, 0x01, 0x08, 0x30, - 0x08, 0x01, 0x15, 0x20, 0x00, 0x39, 0x99, 0x31, - 0x9d, 0x84, 0x40, 0x94, 0x80, 0xd6, 0x82, 0xa6, - 0x80, 0x41, 0x62, 0x80, 0xa6, 0x80, 0x4b, 0x72, - 0x80, 0x4c, 0x02, 0xf8, 0x02, 0x80, 0x8f, 0x80, - 0xb0, 0x40, 0xdb, 0x08, 0x80, 0x41, 0xd0, 0x80, - 0x8c, 0x80, 0x8f, 0x8c, 0xe4, 0x03, 0x01, 0x89, - 0x00, 0x14, 0x28, 0x10, 0x11, 0x02, 0x01, 0x18, - 0x0b, 0x24, 0x4b, 0x26, 0x01, 0x01, 0x86, 0xe5, - 0x80, 0x60, 0x79, 0xb6, 0x81, 0x40, 0x91, 0x81, - 0xbd, 0x88, 0x94, 0x05, 0x80, 0x98, 0x80, 0xa2, - 0x00, 0x80, 0x9b, 0x12, 0x82, 0x43, 0x34, 0xa2, - 0x06, 0x80, 0x8d, 0x60, 0x5c, 0x15, 0x01, 0x10, - 0xa9, 0x80, 0x88, 0x60, 0xcc, 0x44, 0xd4, 0x80, - 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00, - 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b, - 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81, - 0x98, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, - 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, - 0x9e, 0x80, 0x98, 0x07, 0x47, 0x33, 0x89, 0x80, - 0x93, 0x2d, 0x41, 0x04, 0xbd, 0x50, 0xc1, 0x99, - 0x85, 0x99, 0x85, 0x99, -}; - -static const uint8_t unicode_prop_Cased1_index[21] = { - 0xb9, 0x02, 0xe0, 0xc0, 0x1d, 0x20, 0xe5, 0x2c, - 0x20, 0xb1, 0x07, 0x21, 0xc1, 0xd6, 0x21, 0x4a, - 0xf1, 0x01, 0x8a, 0xf1, 0x01, -}; - -static const uint8_t unicode_prop_Case_Ignorable_table[737] = { - 0xa6, 0x05, 0x80, 0x8a, 0x80, 0xa2, 0x00, 0x80, - 0xc6, 0x03, 0x00, 0x03, 0x01, 0x81, 0x41, 0xf6, - 0x40, 0xbf, 0x19, 0x18, 0x88, 0x08, 0x80, 0x40, - 0xfa, 0x86, 0x40, 0xce, 0x04, 0x80, 0xb0, 0xac, - 0x00, 0x01, 0x01, 0x00, 0xab, 0x80, 0x8a, 0x85, - 0x89, 0x8a, 0x00, 0xa2, 0x80, 0x89, 0x94, 0x8f, - 0x80, 0xe4, 0x38, 0x89, 0x03, 0xa0, 0x00, 0x80, - 0x9d, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0x18, 0x08, - 0x97, 0x97, 0xaa, 0x82, 0xab, 0x06, 0x0d, 0x87, - 0xa8, 0xb9, 0xb6, 0x00, 0x03, 0x3b, 0x02, 0x86, - 0x89, 0x81, 0x8c, 0x80, 0x8e, 0x80, 0xb9, 0x03, - 0x1f, 0x80, 0x93, 0x81, 0x99, 0x01, 0x81, 0xb8, - 0x03, 0x0b, 0x09, 0x12, 0x80, 0x9d, 0x0a, 0x80, - 0x8a, 0x81, 0xb8, 0x03, 0x20, 0x0b, 0x80, 0x93, - 0x81, 0x95, 0x28, 0x80, 0xb9, 0x01, 0x00, 0x1f, - 0x06, 0x81, 0x8a, 0x81, 0x9d, 0x80, 0xbc, 0x80, - 0x8b, 0x80, 0xb1, 0x02, 0x80, 0xb6, 0x00, 0x14, - 0x10, 0x1e, 0x81, 0x8a, 0x81, 0x9c, 0x80, 0xb9, - 0x01, 0x05, 0x04, 0x81, 0x93, 0x81, 0x9b, 0x81, - 0xb8, 0x0b, 0x1f, 0x80, 0x93, 0x81, 0x9c, 0x80, - 0xc7, 0x06, 0x10, 0x80, 0xd9, 0x01, 0x86, 0x8a, - 0x88, 0xe1, 0x01, 0x88, 0x88, 0x00, 0x86, 0xc8, - 0x81, 0x9a, 0x00, 0x00, 0x80, 0xb6, 0x8d, 0x04, - 0x01, 0x84, 0x8a, 0x80, 0xa3, 0x88, 0x80, 0xe5, - 0x18, 0x28, 0x09, 0x81, 0x98, 0x0b, 0x82, 0x8f, - 0x83, 0x8c, 0x01, 0x0d, 0x80, 0x8e, 0x80, 0xdd, - 0x80, 0x42, 0x5f, 0x82, 0x43, 0xb1, 0x82, 0x9c, - 0x81, 0x9d, 0x81, 0x9d, 0x81, 0xbf, 0x08, 0x37, - 0x01, 0x8a, 0x10, 0x20, 0xac, 0x84, 0xb2, 0x80, - 0xc0, 0x81, 0xa1, 0x80, 0xf5, 0x13, 0x81, 0x88, - 0x05, 0x82, 0x40, 0xda, 0x09, 0x80, 0xb9, 0x00, - 0x30, 0x00, 0x01, 0x3d, 0x89, 0x08, 0xa6, 0x07, - 0x9e, 0xb0, 0x83, 0xaf, 0x00, 0x20, 0x04, 0x80, - 0xa7, 0x88, 0x8b, 0x81, 0x9f, 0x19, 0x08, 0x82, - 0xb7, 0x00, 0x0a, 0x00, 0x82, 0xb9, 0x39, 0x81, - 0xbf, 0x85, 0xd1, 0x10, 0x8c, 0x06, 0x18, 0x28, - 0x11, 0xb1, 0xbe, 0x8c, 0x80, 0xa1, 0xe4, 0x41, - 0xbc, 0x00, 0x82, 0x8a, 0x82, 0x8c, 0x82, 0x8c, - 0x82, 0x8c, 0x81, 0x8b, 0x27, 0x81, 0x89, 0x01, - 0x01, 0x84, 0xb0, 0x20, 0x89, 0x00, 0x8c, 0x80, - 0x8f, 0x8c, 0xb2, 0xa0, 0x4b, 0x8a, 0x81, 0xf0, - 0x82, 0xfc, 0x80, 0x8e, 0x80, 0xdf, 0x9f, 0xae, - 0x80, 0x41, 0xd4, 0x80, 0xa3, 0x1a, 0x24, 0x80, - 0xdc, 0x85, 0xdc, 0x82, 0x60, 0x6f, 0x15, 0x80, - 0x44, 0xe1, 0x85, 0x41, 0x0d, 0x80, 0xe1, 0x18, - 0x89, 0x00, 0x9b, 0x83, 0xcf, 0x81, 0x8d, 0xa1, - 0xcd, 0x80, 0x96, 0x82, 0xe6, 0x12, 0x0f, 0x02, - 0x03, 0x80, 0x98, 0x0c, 0x80, 0x40, 0x96, 0x81, - 0x99, 0x91, 0x8c, 0x80, 0xa5, 0x87, 0x98, 0x8a, - 0xad, 0x82, 0xaf, 0x01, 0x19, 0x81, 0x90, 0x80, - 0x94, 0x81, 0xc1, 0x29, 0x09, 0x81, 0x8b, 0x07, - 0x80, 0xa2, 0x80, 0x8a, 0x80, 0xb2, 0x00, 0x11, - 0x0c, 0x08, 0x80, 0x9a, 0x80, 0x8d, 0x0c, 0x08, - 0x80, 0xe3, 0x84, 0x88, 0x82, 0xf8, 0x01, 0x03, - 0x80, 0x60, 0x4f, 0x2f, 0x80, 0x40, 0x92, 0x90, - 0x42, 0x3c, 0x8f, 0x10, 0x8b, 0x8f, 0xa1, 0x01, - 0x80, 0x40, 0xa8, 0x06, 0x05, 0x80, 0x8a, 0x80, - 0xa2, 0x00, 0x80, 0xae, 0x80, 0xac, 0x81, 0xc2, - 0x80, 0x94, 0x82, 0x42, 0x00, 0x80, 0x40, 0xe1, - 0x80, 0x40, 0x94, 0x84, 0x44, 0x04, 0x28, 0xa9, - 0x80, 0x88, 0x42, 0x45, 0x10, 0x0c, 0x83, 0xa7, - 0x13, 0x80, 0x40, 0xa4, 0x81, 0x42, 0x3c, 0x83, - 0x41, 0x82, 0x81, 0xcf, 0x82, 0xc5, 0x8a, 0xb0, - 0x83, 0xfa, 0x80, 0xb5, 0x8e, 0xa8, 0x01, 0x81, - 0x89, 0x82, 0xb0, 0x19, 0x09, 0x03, 0x80, 0x89, - 0x80, 0xb1, 0x82, 0xa3, 0x20, 0x87, 0xbd, 0x80, - 0x8b, 0x81, 0xb3, 0x88, 0x89, 0x19, 0x80, 0xde, - 0x11, 0x00, 0x0d, 0x01, 0x80, 0x40, 0x9c, 0x02, - 0x87, 0x94, 0x81, 0xb8, 0x0a, 0x80, 0xa4, 0x32, - 0x84, 0x40, 0xc2, 0x39, 0x10, 0x80, 0x96, 0x80, - 0xd3, 0x28, 0x03, 0x08, 0x81, 0x40, 0xed, 0x1d, - 0x08, 0x81, 0x9a, 0x81, 0xd4, 0x39, 0x00, 0x81, - 0xe9, 0x00, 0x01, 0x28, 0x80, 0xe4, 0x11, 0x18, - 0x84, 0x41, 0x02, 0x88, 0x01, 0x40, 0xff, 0x08, - 0x03, 0x80, 0x40, 0x8f, 0x19, 0x0b, 0x80, 0x9f, - 0x89, 0xa7, 0x29, 0x1f, 0x80, 0x88, 0x29, 0x82, - 0xad, 0x8c, 0x01, 0x41, 0x95, 0x30, 0x28, 0x80, - 0xd1, 0x95, 0x0e, 0x01, 0x01, 0xf9, 0x2a, 0x00, - 0x08, 0x30, 0x80, 0xc7, 0x0a, 0x00, 0x80, 0x41, - 0x5a, 0x81, 0x8a, 0x81, 0xb3, 0x24, 0x00, 0x80, - 0x54, 0xec, 0x90, 0x85, 0x8e, 0x60, 0x36, 0x99, - 0x84, 0xba, 0x86, 0x88, 0x83, 0x44, 0x0a, 0x80, - 0xbe, 0x90, 0xbf, 0x08, 0x81, 0x60, 0x40, 0x0a, - 0x18, 0x30, 0x81, 0x4c, 0x9d, 0x08, 0x83, 0x52, - 0x5b, 0xad, 0x81, 0x96, 0x42, 0x1f, 0x82, 0x88, - 0x8f, 0x0e, 0x9d, 0x83, 0x40, 0x93, 0x82, 0x47, - 0xba, 0xb6, 0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95, - 0x20, 0x8e, 0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01, - 0x04, 0x84, 0xbd, 0xa0, 0x80, 0x40, 0x9f, 0x8d, - 0x41, 0x6f, 0x80, 0xbc, 0x83, 0x41, 0xfa, 0x84, - 0x43, 0xdf, 0x86, 0xec, 0x87, 0x4a, 0xae, 0x84, - 0x6c, 0x0c, 0x00, 0x80, 0x9d, 0xdf, 0xff, 0x40, - 0xef, -}; - -static const uint8_t unicode_prop_Case_Ignorable_index[69] = { - 0xbe, 0x05, 0x00, 0xfe, 0x07, 0x00, 0x52, 0x0a, - 0xa0, 0xc1, 0x0b, 0x00, 0x82, 0x0d, 0x00, 0x3f, - 0x10, 0x80, 0xd4, 0x17, 0x40, 0xcf, 0x1a, 0x20, - 0xf5, 0x1c, 0x00, 0x80, 0x20, 0x00, 0x16, 0xa0, - 0x00, 0xc6, 0xa8, 0x00, 0xc2, 0xaa, 0x60, 0x56, - 0xfe, 0x20, 0xb1, 0x07, 0x01, 0x75, 0x10, 0x01, - 0xeb, 0x12, 0x21, 0x41, 0x16, 0x01, 0x5c, 0x1a, - 0x01, 0x43, 0x1f, 0x01, 0x2e, 0xcf, 0x41, 0x25, - 0xe0, 0x01, 0xf0, 0x01, 0x0e, -}; - -static const uint8_t unicode_prop_ID_Start_table[1100] = { - 0xc0, 0x99, 0x85, 0x99, 0xae, 0x80, 0x89, 0x03, - 0x04, 0x96, 0x80, 0x9e, 0x80, 0x41, 0xc9, 0x83, - 0x8b, 0x8d, 0x26, 0x00, 0x80, 0x40, 0x80, 0x20, - 0x09, 0x18, 0x05, 0x00, 0x10, 0x00, 0x93, 0x80, - 0xd2, 0x80, 0x40, 0x8a, 0x87, 0x40, 0xa5, 0x80, - 0xa5, 0x08, 0x85, 0xa8, 0xc6, 0x9a, 0x1b, 0xac, - 0xaa, 0xa2, 0x08, 0xe2, 0x00, 0x8e, 0x0e, 0x81, - 0x89, 0x11, 0x80, 0x8f, 0x00, 0x9d, 0x9c, 0xd8, - 0x8a, 0x80, 0x97, 0xa0, 0x88, 0x0b, 0x04, 0x95, - 0x18, 0x88, 0x02, 0x80, 0x96, 0x98, 0x86, 0x8a, - 0x84, 0x97, 0x05, 0x90, 0xa9, 0xb9, 0xb5, 0x10, - 0x91, 0x06, 0x89, 0x8e, 0x8f, 0x1f, 0x09, 0x81, - 0x95, 0x06, 0x00, 0x13, 0x10, 0x8f, 0x80, 0x8c, - 0x08, 0x82, 0x8d, 0x81, 0x89, 0x07, 0x2b, 0x09, - 0x95, 0x06, 0x01, 0x01, 0x01, 0x9e, 0x18, 0x80, - 0x92, 0x82, 0x8f, 0x88, 0x02, 0x80, 0x95, 0x06, - 0x01, 0x04, 0x10, 0x91, 0x80, 0x8e, 0x81, 0x96, - 0x80, 0x8a, 0x39, 0x09, 0x95, 0x06, 0x01, 0x04, - 0x10, 0x9d, 0x08, 0x82, 0x8e, 0x80, 0x90, 0x00, - 0x2a, 0x10, 0x1a, 0x08, 0x00, 0x0a, 0x0a, 0x12, - 0x8b, 0x95, 0x80, 0xb3, 0x38, 0x10, 0x96, 0x80, - 0x8f, 0x10, 0x99, 0x11, 0x01, 0x81, 0x9d, 0x03, - 0x38, 0x10, 0x96, 0x80, 0x89, 0x04, 0x10, 0x9e, - 0x08, 0x81, 0x8e, 0x81, 0x90, 0x88, 0x02, 0x80, - 0xa8, 0x08, 0x8f, 0x04, 0x17, 0x82, 0x97, 0x2c, - 0x91, 0x82, 0x97, 0x80, 0x88, 0x00, 0x0e, 0xb9, - 0xaf, 0x01, 0x8b, 0x86, 0xb9, 0x08, 0x00, 0x20, - 0x97, 0x00, 0x80, 0x89, 0x01, 0x88, 0x01, 0x20, - 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0x8b, 0x82, 0xaf, 0x8d, 0x3b, 0x80, 0x8b, 0xd1, - 0x8b, 0x28, 0x08, 0x40, 0x9c, 0x8b, 0x84, 0x89, - 0x2b, 0xb6, 0x08, 0x31, 0x09, 0x82, 0x88, 0x80, - 0x89, 0x09, 0x32, 0x84, 0x40, 0xbf, 0x91, 0x88, - 0x89, 0x18, 0xd0, 0x93, 0x8b, 0x89, 0x40, 0xd4, - 0x31, 0x88, 0x9a, 0x81, 0xd1, 0x90, 0x8e, 0x89, - 0xd0, 0x8c, 0x87, 0x89, 0xd2, 0x8e, 0x83, 0x89, - 0x40, 0xf1, 0x8e, 0x40, 0xa4, 0x89, 0xc5, 0x28, - 0x09, 0x18, 0x00, 0x81, 0x8b, 0x89, 0xf6, 0x31, - 0x32, 0x80, 0x9b, 0x89, 0xa7, 0x30, 0x1f, 0x80, - 0x88, 0x8a, 0xad, 0x8f, 0x41, 0x94, 0x38, 0x87, - 0x8f, 0x89, 0xb7, 0x95, 0x80, 0x8d, 0xf9, 0x2a, - 0x00, 0x08, 0x30, 0x07, 0x89, 0xaf, 0x20, 0x08, - 0x27, 0x89, 0x41, 0x48, 0x83, 0x88, 0x08, 0x80, - 0xaf, 0x32, 0x84, 0x8c, 0x89, 0x54, 0xe5, 0x05, - 0x8e, 0x60, 0x36, 0x09, 0x89, 0xd5, 0x89, 0xa5, - 0x84, 0xba, 0x86, 0x98, 0x89, 0x43, 0xf4, 0x00, - 0xb6, 0x33, 0xd0, 0x80, 0x8a, 0x81, 0x60, 0x4c, - 0xaa, 0x81, 0x52, 0x60, 0xad, 0x81, 0x96, 0x42, - 0x1d, 0x22, 0x2f, 0x39, 0x86, 0x9d, 0x83, 0x40, - 0x93, 0x82, 0x45, 0x88, 0xb1, 0x41, 0xff, 0xb6, - 0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95, 0x20, 0x8e, - 0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01, 0x04, 0xe3, - 0x80, 0x40, 0x9f, 0x86, 0x88, 0x89, 0x41, 0x63, - 0x80, 0xbc, 0x8d, 0x41, 0xf1, 0x8d, 0x43, 0xd5, - 0x86, 0xec, 0x34, 0x89, 0x52, 0x95, 0x89, 0x6c, - 0x05, 0x05, 0x40, 0xef, -}; - -static const uint8_t unicode_prop_ID_Continue1_index[63] = { - 0xfa, 0x06, 0x00, 0x70, 0x09, 0x00, 0xf0, 0x0a, - 0x40, 0x57, 0x0c, 0x00, 0xf0, 0x0d, 0x60, 0xc7, - 0x0f, 0x20, 0xea, 0x17, 0x40, 0x05, 0x1b, 0x00, - 0x41, 0x20, 0x00, 0x0c, 0xa8, 0x80, 0x37, 0xaa, - 0x20, 0x50, 0xfe, 0x20, 0x3a, 0x0d, 0x21, 0x74, - 0x11, 0x01, 0x5a, 0x14, 0x21, 0x44, 0x19, 0x81, - 0x5a, 0x1d, 0xa1, 0xf5, 0x6a, 0x21, 0x45, 0xd2, - 0x41, 0xaf, 0xe2, 0x21, 0xf0, 0x01, 0x0e, -}; - -#ifdef CONFIG_ALL_UNICODE - -static const uint8_t unicode_cc_table[899] = { - 0xb2, 0xcf, 0xd4, 0x00, 0xe8, 0x03, 0xdc, 0x00, - 0xe8, 0x00, 0xd8, 0x04, 0xdc, 0x01, 0xca, 0x03, - 0xdc, 0x01, 0xca, 0x0a, 0xdc, 0x04, 0x01, 0x03, - 0xdc, 0xc7, 0x00, 0xf0, 0xc0, 0x02, 0xdc, 0xc2, - 0x01, 0xdc, 0x80, 0xc2, 0x03, 0xdc, 0xc0, 0x00, - 0xe8, 0x01, 0xdc, 0xc0, 0x41, 0xe9, 0x00, 0xea, - 0x41, 0xe9, 0x00, 0xea, 0x00, 0xe9, 0xcc, 0xb0, - 0xe2, 0xc4, 0xb0, 0xd8, 0x00, 0xdc, 0xc3, 0x00, - 0xdc, 0xc2, 0x00, 0xde, 0x00, 0xdc, 0xc5, 0x05, - 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xde, 0x00, - 0xe4, 0xc0, 0x49, 0x0a, 0x43, 0x13, 0x80, 0x00, - 0x17, 0x80, 0x41, 0x18, 0x80, 0xc0, 0x00, 0xdc, - 0x80, 0x00, 0x12, 0xb0, 0x17, 0xc7, 0x42, 0x1e, - 0xaf, 0x47, 0x1b, 0xc1, 0x01, 0xdc, 0xc4, 0x00, - 0xdc, 0xc1, 0x00, 0xdc, 0x8f, 0x00, 0x23, 0xb0, - 0x34, 0xc6, 0x81, 0xc3, 0x00, 0xdc, 0xc0, 0x81, - 0xc1, 0x80, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xa2, - 0x00, 0x24, 0x9d, 0xc0, 0x00, 0xdc, 0xc1, 0x00, - 0xdc, 0xc1, 0x02, 0xdc, 0xc0, 0x01, 0xdc, 0xc0, - 0x00, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x00, 0xdc, - 0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xc1, 0xb0, - 0x6f, 0xc6, 0x00, 0xdc, 0xc0, 0x88, 0x00, 0xdc, - 0x97, 0xc3, 0x80, 0xc8, 0x80, 0xc2, 0x80, 0xc4, - 0xaa, 0x02, 0xdc, 0xb0, 0x0b, 0xc0, 0x02, 0xdc, - 0xc3, 0xa9, 0xc4, 0x04, 0xdc, 0xcd, 0x80, 0x00, - 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xc2, - 0x02, 0xdc, 0x42, 0x1b, 0xc2, 0x00, 0xdc, 0xc1, - 0x01, 0xdc, 0xc4, 0xb0, 0x0b, 0x00, 0x07, 0x8f, - 0x00, 0x09, 0x82, 0xc0, 0x00, 0xdc, 0xc1, 0xb0, - 0x36, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xaf, 0xc0, - 0xb0, 0x0c, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, - 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3d, - 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x4e, 0x00, - 0x09, 0xb0, 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09, - 0x86, 0x00, 0x54, 0x00, 0x5b, 0xb0, 0x34, 0x00, - 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3c, 0x01, 0x09, - 0x8f, 0x00, 0x09, 0xb0, 0x4b, 0x00, 0x09, 0xb0, - 0x3c, 0x01, 0x67, 0x00, 0x09, 0x8c, 0x03, 0x6b, - 0xb0, 0x3b, 0x01, 0x76, 0x00, 0x09, 0x8c, 0x03, - 0x7a, 0xb0, 0x1b, 0x01, 0xdc, 0x9a, 0x00, 0xdc, - 0x80, 0x00, 0xdc, 0x80, 0x00, 0xd8, 0xb0, 0x06, - 0x41, 0x81, 0x80, 0x00, 0x84, 0x84, 0x03, 0x82, - 0x81, 0x00, 0x82, 0x80, 0xc1, 0x00, 0x09, 0x80, - 0xc1, 0xb0, 0x0d, 0x00, 0xdc, 0xb0, 0x3f, 0x00, - 0x07, 0x80, 0x01, 0x09, 0xb0, 0x21, 0x00, 0xdc, - 0xb2, 0x9e, 0xc2, 0xb3, 0x83, 0x01, 0x09, 0x9d, - 0x00, 0x09, 0xb0, 0x6c, 0x00, 0x09, 0x89, 0xc0, - 0xb0, 0x9a, 0x00, 0xe4, 0xb0, 0x5e, 0x00, 0xde, - 0xc0, 0x00, 0xdc, 0xb0, 0xaa, 0xc0, 0x00, 0xdc, - 0xb0, 0x16, 0x00, 0x09, 0x93, 0xc7, 0x81, 0x00, - 0xdc, 0xaf, 0xc4, 0x05, 0xdc, 0xc1, 0x00, 0xdc, - 0x80, 0x01, 0xdc, 0xc1, 0x01, 0xdc, 0xc4, 0x00, - 0xdc, 0xc3, 0xb0, 0x34, 0x00, 0x07, 0x8e, 0x00, - 0x09, 0xa5, 0xc0, 0x00, 0xdc, 0xc6, 0xb0, 0x05, - 0x01, 0x09, 0xb0, 0x09, 0x00, 0x07, 0x8a, 0x01, - 0x09, 0xb0, 0x12, 0x00, 0x07, 0xb0, 0x67, 0xc2, - 0x41, 0x00, 0x04, 0xdc, 0xc1, 0x03, 0xdc, 0xc0, - 0x41, 0x00, 0x05, 0x01, 0x83, 0x00, 0xdc, 0x85, - 0xc0, 0x82, 0xc1, 0xb0, 0x95, 0xc1, 0x00, 0xdc, - 0xc6, 0x00, 0xdc, 0xc1, 0x00, 0xea, 0x00, 0xd6, - 0x00, 0xdc, 0x00, 0xca, 0xe4, 0x00, 0xe8, 0x01, - 0xe4, 0x00, 0xdc, 0x00, 0xda, 0xc0, 0x00, 0xe9, - 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xb2, 0x9f, 0xc1, - 0x01, 0x01, 0xc3, 0x02, 0x01, 0xc1, 0x83, 0xc0, - 0x82, 0x01, 0x01, 0xc0, 0x00, 0xdc, 0xc0, 0x01, - 0x01, 0x03, 0xdc, 0xc0, 0xb8, 0x03, 0xcd, 0xc2, - 0xb0, 0x5c, 0x00, 0x09, 0xb0, 0x2f, 0xdf, 0xb1, - 0xf9, 0x00, 0xda, 0x00, 0xe4, 0x00, 0xe8, 0x00, - 0xde, 0x01, 0xe0, 0xb0, 0x38, 0x01, 0x08, 0xb8, - 0x6d, 0xa3, 0xc0, 0x83, 0xc9, 0x9f, 0xc1, 0xb0, - 0x1f, 0xc1, 0xb0, 0xe3, 0x00, 0x09, 0xa4, 0x00, - 0x09, 0xb0, 0x66, 0x00, 0x09, 0x9a, 0xd1, 0xb0, - 0x08, 0x02, 0xdc, 0xa4, 0x00, 0x09, 0xb0, 0x2e, - 0x00, 0x07, 0x8b, 0x00, 0x09, 0xb0, 0xbe, 0xc0, - 0x80, 0xc1, 0x00, 0xdc, 0x81, 0xc1, 0x84, 0xc1, - 0x80, 0xc0, 0xb0, 0x03, 0x00, 0x09, 0xb0, 0xc5, - 0x00, 0x09, 0xb8, 0x46, 0xff, 0x00, 0x1a, 0xb2, - 0xd0, 0xc6, 0x06, 0xdc, 0xc1, 0xb3, 0x9c, 0x00, - 0xdc, 0xb0, 0xb1, 0x00, 0xdc, 0xb0, 0x64, 0xc4, - 0xb6, 0x61, 0x00, 0xdc, 0x80, 0xc0, 0xa7, 0xc0, - 0x00, 0x01, 0x00, 0xdc, 0x83, 0x00, 0x09, 0xb0, - 0x74, 0xc0, 0x00, 0xdc, 0xb2, 0x0c, 0xc3, 0xb1, - 0x52, 0xc1, 0xb0, 0x1f, 0x02, 0xdc, 0xb0, 0x15, - 0x01, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x03, 0xdc, - 0xb0, 0x00, 0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc, - 0xb0, 0x8f, 0x00, 0x09, 0xa8, 0x00, 0x09, 0x8d, - 0x00, 0x09, 0xb0, 0x08, 0x00, 0x09, 0x00, 0x07, - 0xb0, 0x14, 0xc2, 0xaf, 0x01, 0x09, 0xb0, 0x0d, - 0x00, 0x07, 0xb0, 0x1b, 0x00, 0x09, 0x88, 0x00, - 0x07, 0xb0, 0x39, 0x00, 0x09, 0x00, 0x07, 0xb0, - 0x81, 0x00, 0x07, 0x00, 0x09, 0xb0, 0x1f, 0x01, - 0x07, 0x8f, 0x00, 0x09, 0x97, 0xc6, 0x82, 0xc4, - 0xb0, 0x9c, 0x00, 0x09, 0x82, 0x00, 0x07, 0x96, - 0xc0, 0xb0, 0x32, 0x00, 0x09, 0x00, 0x07, 0xb0, - 0xca, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x4d, 0x00, - 0x09, 0xb0, 0x45, 0x00, 0x09, 0x00, 0x07, 0xb0, - 0x42, 0x00, 0x09, 0xb0, 0xdc, 0x00, 0x09, 0x00, - 0x07, 0xb0, 0xd1, 0x01, 0x09, 0x83, 0x00, 0x07, - 0xb0, 0x6b, 0x00, 0x09, 0xb0, 0x22, 0x00, 0x09, - 0x91, 0x00, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb1, - 0x74, 0x00, 0x09, 0xb0, 0xd1, 0x00, 0x07, 0x80, - 0x01, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb1, 0x78, - 0x01, 0x09, 0xb8, 0x43, 0x7c, 0x04, 0x01, 0xb0, - 0x0a, 0xc6, 0xb4, 0x88, 0x01, 0x06, 0xb8, 0x44, - 0x7b, 0x00, 0x01, 0xb8, 0x0c, 0x95, 0x01, 0xd8, - 0x02, 0x01, 0x82, 0x00, 0xe2, 0x04, 0xd8, 0x87, - 0x07, 0xdc, 0x81, 0xc4, 0x01, 0xdc, 0x9d, 0xc3, - 0xb0, 0x63, 0xc2, 0xb8, 0x05, 0x8a, 0xc6, 0x80, - 0xd0, 0x81, 0xc6, 0x80, 0xc1, 0x80, 0xc4, 0xb0, - 0x33, 0xc0, 0xb0, 0x6f, 0xc6, 0xb1, 0x46, 0xc0, - 0xb0, 0x0c, 0xc3, 0xb1, 0xcb, 0x01, 0xe8, 0x00, - 0xdc, 0xc0, 0xb3, 0xaf, 0x06, 0xdc, 0xb0, 0x3c, - 0xc5, 0x00, 0x07, -}; - -static const uint8_t unicode_cc_index[87] = { - 0x4d, 0x03, 0x00, 0x97, 0x05, 0x20, 0xc6, 0x05, - 0x00, 0xe7, 0x06, 0x00, 0x45, 0x07, 0x00, 0x9c, - 0x08, 0x00, 0x4d, 0x09, 0x00, 0x3c, 0x0b, 0x00, - 0x3d, 0x0d, 0x00, 0x36, 0x0f, 0x00, 0x38, 0x10, - 0x20, 0x3a, 0x19, 0x00, 0xcb, 0x1a, 0x20, 0xd3, - 0x1c, 0x00, 0xcf, 0x1d, 0x00, 0xe2, 0x20, 0x00, - 0x2e, 0x30, 0x20, 0x2b, 0xa9, 0x20, 0xed, 0xab, - 0x00, 0x39, 0x0a, 0x01, 0x51, 0x0f, 0x01, 0x73, - 0x11, 0x01, 0x75, 0x13, 0x01, 0x2b, 0x17, 0x21, - 0x3f, 0x1c, 0x21, 0x9e, 0xbc, 0x21, 0x08, 0xe0, - 0x01, 0x44, 0xe9, 0x01, 0x4b, 0xe9, 0x01, -}; - -static const uint32_t unicode_decomp_table1[699] = { - 0x00280081, 0x002a0097, 0x002a8081, 0x002bc097, - 0x002c8115, 0x002d0097, 0x002d4081, 0x002e0097, - 0x002e4115, 0x002f0199, 0x00302016, 0x00400842, - 0x00448a42, 0x004a0442, 0x004c0096, 0x004c8117, - 0x004d0242, 0x004e4342, 0x004fc12f, 0x0050c342, - 0x005240bf, 0x00530342, 0x00550942, 0x005a0842, - 0x005e0096, 0x005e4342, 0x005fc081, 0x00680142, - 0x006bc142, 0x00710185, 0x0071c317, 0x00734844, - 0x00778344, 0x00798342, 0x007b02be, 0x007c4197, - 0x007d0142, 0x007e0444, 0x00800e42, 0x00878142, - 0x00898744, 0x00ac0483, 0x00b60317, 0x00b80283, - 0x00d00214, 0x00d10096, 0x00dd0080, 0x00de8097, - 0x00df8080, 0x00e10097, 0x00e1413e, 0x00e1c080, - 0x00e204be, 0x00ea83ae, 0x00f282ae, 0x00f401ad, - 0x00f4c12e, 0x00f54103, 0x00fc0303, 0x00fe4081, - 0x0100023e, 0x0101c0be, 0x010301be, 0x010640be, - 0x010e40be, 0x0114023e, 0x0115c0be, 0x011701be, - 0x011d8144, 0x01304144, 0x01340244, 0x01358144, - 0x01368344, 0x01388344, 0x013a8644, 0x013e0144, - 0x0161c085, 0x018882ae, 0x019d422f, 0x01b00184, - 0x01b4c084, 0x024a4084, 0x024c4084, 0x024d0084, - 0x0256042e, 0x0272c12e, 0x02770120, 0x0277c084, - 0x028cc084, 0x028d8084, 0x029641ae, 0x02978084, - 0x02d20084, 0x02d2c12e, 0x02d70120, 0x02e50084, - 0x02f281ae, 0x03120084, 0x03300084, 0x0331c122, - 0x0332812e, 0x035281ae, 0x03768084, 0x037701ae, - 0x038cc085, 0x03acc085, 0x03b7012f, 0x03c30081, - 0x03d0c084, 0x03d34084, 0x03d48084, 0x03d5c084, - 0x03d70084, 0x03da4084, 0x03dcc084, 0x03dd412e, - 0x03ddc085, 0x03de0084, 0x03de4085, 0x03e04084, - 0x03e4c084, 0x03e74084, 0x03e88084, 0x03e9c084, - 0x03eb0084, 0x03ee4084, 0x04098084, 0x043f0081, - 0x06c18484, 0x06c48084, 0x06cec184, 0x06d00120, - 0x06d0c084, 0x074b0383, 0x074cc41f, 0x074f1783, - 0x075e0081, 0x0766d283, 0x07801d44, 0x078e8942, - 0x07931844, 0x079f0d42, 0x07a58216, 0x07a68085, - 0x07a6c0be, 0x07a80d44, 0x07aea044, 0x07c00122, - 0x07c08344, 0x07c20122, 0x07c28344, 0x07c40122, - 0x07c48244, 0x07c60122, 0x07c68244, 0x07c8113e, - 0x07d08244, 0x07d20122, 0x07d28244, 0x07d40122, - 0x07d48344, 0x07d64c3e, 0x07dc4080, 0x07dc80be, - 0x07dcc080, 0x07dd00be, 0x07dd4080, 0x07dd80be, - 0x07ddc080, 0x07de00be, 0x07de4080, 0x07de80be, - 0x07dec080, 0x07df00be, 0x07df4080, 0x07e00820, - 0x07e40820, 0x07e80820, 0x07ec05be, 0x07eec080, - 0x07ef00be, 0x07ef4097, 0x07ef8080, 0x07efc117, - 0x07f0443e, 0x07f24080, 0x07f280be, 0x07f2c080, - 0x07f303be, 0x07f4c080, 0x07f582ae, 0x07f6c080, - 0x07f7433e, 0x07f8c080, 0x07f903ae, 0x07fac080, - 0x07fb013e, 0x07fb8102, 0x07fc83be, 0x07fe4080, - 0x07fe80be, 0x07fec080, 0x07ff00be, 0x07ff4080, - 0x07ff8097, 0x0800011e, 0x08008495, 0x08044081, - 0x0805c097, 0x08090081, 0x08094097, 0x08098099, - 0x080bc081, 0x080cc085, 0x080d00b1, 0x080d8085, - 0x080dc0b1, 0x080f0197, 0x0811c197, 0x0815c0b3, - 0x0817c081, 0x081c0595, 0x081ec081, 0x081f0215, - 0x0820051f, 0x08228583, 0x08254415, 0x082a0097, - 0x08400119, 0x08408081, 0x0840c0bf, 0x08414119, - 0x0841c081, 0x084240bf, 0x0842852d, 0x08454081, - 0x08458097, 0x08464295, 0x08480097, 0x08484099, - 0x08488097, 0x08490081, 0x08498080, 0x084a0081, - 0x084a8102, 0x084b0495, 0x084d421f, 0x084e4081, - 0x084ec099, 0x084f0283, 0x08514295, 0x08540119, - 0x0854809b, 0x0854c619, 0x0857c097, 0x08580081, - 0x08584097, 0x08588099, 0x0858c097, 0x08590081, - 0x08594097, 0x08598099, 0x0859c09b, 0x085a0097, - 0x085a4081, 0x085a8097, 0x085ac099, 0x085b0295, - 0x085c4097, 0x085c8099, 0x085cc097, 0x085d0081, - 0x085d4097, 0x085d8099, 0x085dc09b, 0x085e0097, - 0x085e4081, 0x085e8097, 0x085ec099, 0x085f0215, - 0x08624099, 0x0866813e, 0x086b80be, 0x087341be, - 0x088100be, 0x088240be, 0x088300be, 0x088901be, - 0x088b0085, 0x088b40b1, 0x088bc085, 0x088c00b1, - 0x089040be, 0x089100be, 0x0891c1be, 0x089801be, - 0x089b42be, 0x089d0144, 0x089e0144, 0x08a00144, - 0x08a10144, 0x08a20144, 0x08ab023e, 0x08b80244, - 0x08ba8220, 0x08ca411e, 0x0918049f, 0x091a4523, - 0x091cc097, 0x091d04a5, 0x091f452b, 0x0921c09b, - 0x092204a1, 0x09244525, 0x0926c099, 0x09270d25, - 0x092d8d1f, 0x09340d1f, 0x093a8081, 0x0a8300b3, - 0x0a9d0099, 0x0a9d4097, 0x0a9d8099, 0x0ab700be, - 0x0b1f0115, 0x0b5bc081, 0x0ba7c081, 0x0bbcc081, - 0x0bc004ad, 0x0bc244ad, 0x0bc484ad, 0x0bc6f383, - 0x0be0852d, 0x0be31d03, 0x0bf1882d, 0x0c000081, - 0x0c0d8283, 0x0c130b84, 0x0c194284, 0x0c1c0122, - 0x0c1cc122, 0x0c1d8122, 0x0c1e4122, 0x0c1f0122, - 0x0c250084, 0x0c26c123, 0x0c278084, 0x0c27c085, - 0x0c2b0b84, 0x0c314284, 0x0c340122, 0x0c34c122, - 0x0c358122, 0x0c364122, 0x0c370122, 0x0c3d0084, - 0x0c3dc220, 0x0c3f8084, 0x0c3fc085, 0x0c4c4a2d, - 0x0c51451f, 0x0c53ca9f, 0x0c5915ad, 0x0c648703, - 0x0c800741, 0x0c838089, 0x0c83c129, 0x0c8441a9, - 0x0c850089, 0x0c854129, 0x0c85c2a9, 0x0c870089, - 0x0c87408f, 0x0c87808d, 0x0c881241, 0x0c910203, - 0x0c940099, 0x0c9444a3, 0x0c968323, 0x0c98072d, - 0x0c9b84af, 0x0c9dc2a1, 0x0c9f00b5, 0x0c9f40b3, - 0x0c9f8085, 0x0ca01883, 0x0cac4223, 0x0cad4523, - 0x0cafc097, 0x0cb004a1, 0x0cb241a5, 0x0cb30097, - 0x0cb34099, 0x0cb38097, 0x0cb3c099, 0x0cb417ad, - 0x0cbfc085, 0x0cc001b3, 0x0cc0c0b1, 0x0cc100b3, - 0x0cc14131, 0x0cc1c0b5, 0x0cc200b3, 0x0cc241b1, - 0x0cc30133, 0x0cc38131, 0x0cc40085, 0x0cc440b1, - 0x0cc48133, 0x0cc50085, 0x0cc540b5, 0x0cc580b7, - 0x0cc5c0b5, 0x0cc600b1, 0x0cc64135, 0x0cc6c0b3, - 0x0cc701b1, 0x0cc7c0b3, 0x0cc800b5, 0x0cc840b3, - 0x0cc881b1, 0x0cc9422f, 0x0cca4131, 0x0ccac0b5, - 0x0ccb00b1, 0x0ccb40b3, 0x0ccb80b5, 0x0ccbc0b1, - 0x0ccc012f, 0x0ccc80b5, 0x0cccc0b3, 0x0ccd00b5, - 0x0ccd40b1, 0x0ccd80b5, 0x0ccdc085, 0x0cce02b1, - 0x0ccf40b3, 0x0ccf80b1, 0x0ccfc085, 0x0cd001b1, - 0x0cd0c0b3, 0x0cd101b1, 0x0cd1c0b5, 0x0cd200b3, - 0x0cd24085, 0x0cd280b5, 0x0cd2c085, 0x0cd30133, - 0x0cd381b1, 0x0cd440b3, 0x0cd48085, 0x0cd4c0b1, - 0x0cd500b3, 0x0cd54085, 0x0cd580b5, 0x0cd5c0b1, - 0x0cd60521, 0x0cd88525, 0x0cdb02a5, 0x0cdc4099, - 0x0cdc8117, 0x0cdd0099, 0x0cdd4197, 0x0cde0127, - 0x0cde8285, 0x0cdfc089, 0x0ce0043f, 0x0ce20099, - 0x0ce2409b, 0x0ce283bf, 0x0ce44219, 0x0ce54205, - 0x0ce6433f, 0x0ce7c131, 0x0ce84085, 0x0ce881b1, - 0x0ce94085, 0x0ce98107, 0x0cea0089, 0x0cea4097, - 0x0cea8219, 0x0ceb809d, 0x0cebc08d, 0x0cec083f, - 0x0cf00105, 0x0cf0809b, 0x0cf0c197, 0x0cf1809b, - 0x0cf1c099, 0x0cf20517, 0x0cf48099, 0x0cf4c117, - 0x0cf54119, 0x0cf5c097, 0x0cf6009b, 0x0cf64099, - 0x0cf68217, 0x0cf78119, 0x0cf804a1, 0x0cfa4525, - 0x0cfcc525, 0x0cff4125, 0x0cffc099, 0x29a70103, - 0x29dc0081, 0x29fc8195, 0x29fe0103, 0x2ad70203, - 0x2ada4081, 0x3e401482, 0x3e4a7f82, 0x3e6a3f82, - 0x3e8aa102, 0x3e9b0110, 0x3e9c2f82, 0x3eb3c590, - 0x3ec00197, 0x3ec0c119, 0x3ec1413f, 0x3ec4c2af, - 0x3ec74184, 0x3ec804ad, 0x3eca4081, 0x3eca8304, - 0x3ecc03a0, 0x3ece02a0, 0x3ecf8084, 0x3ed00120, - 0x3ed0c120, 0x3ed184ae, 0x3ed3c085, 0x3ed4312d, - 0x3ef4cbad, 0x3efa892f, 0x3eff022d, 0x3f002f2f, - 0x3f1782a5, 0x3f18c0b1, 0x3f1907af, 0x3f1cffaf, - 0x3f3c81a5, 0x3f3d64af, 0x3f542031, 0x3f649b31, - 0x3f7c0131, 0x3f7c83b3, 0x3f7e40b1, 0x3f7e80bd, - 0x3f7ec0bb, 0x3f7f00b3, 0x3f840503, 0x3f8c01ad, - 0x3f8cc315, 0x3f8e462d, 0x3f91cc03, 0x3f97c695, - 0x3f9c01af, 0x3f9d0085, 0x3f9d852f, 0x3fa03aad, - 0x3fbd442f, 0x3fc06f1f, 0x3fd7c11f, 0x3fd85fad, - 0x3fe80081, 0x3fe84f1f, 0x3ff0831f, 0x3ff2831f, - 0x3ff4831f, 0x3ff6819f, 0x3ff80783, 0x41e04d83, - 0x41e70f91, 0x44268192, 0x442ac092, 0x444b8112, - 0x44d2c112, 0x452ec212, 0x456e8112, 0x464e0092, - 0x74578392, 0x746ec312, 0x75000d1f, 0x75068d1f, - 0x750d0d1f, 0x7513839f, 0x7515891f, 0x751a0d1f, - 0x75208d1f, 0x75271015, 0x752f439f, 0x7531459f, - 0x75340d1f, 0x753a8d1f, 0x75410395, 0x7543441f, - 0x7545839f, 0x75478d1f, 0x754e0795, 0x7552839f, - 0x75548d1f, 0x755b0d1f, 0x75618d1f, 0x75680d1f, - 0x756e8d1f, 0x75750d1f, 0x757b8d1f, 0x75820d1f, - 0x75888d1f, 0x758f0d1f, 0x75958d1f, 0x759c0d1f, - 0x75a28d1f, 0x75a90103, 0x75aa089f, 0x75ae4081, - 0x75ae839f, 0x75b04081, 0x75b08c9f, 0x75b6c081, - 0x75b7032d, 0x75b8889f, 0x75bcc081, 0x75bd039f, - 0x75bec081, 0x75bf0c9f, 0x75c54081, 0x75c5832d, - 0x75c7089f, 0x75cb4081, 0x75cb839f, 0x75cd4081, - 0x75cd8c9f, 0x75d3c081, 0x75d4032d, 0x75d5889f, - 0x75d9c081, 0x75da039f, 0x75dbc081, 0x75dc0c9f, - 0x75e24081, 0x75e2832d, 0x75e4089f, 0x75e84081, - 0x75e8839f, 0x75ea4081, 0x75ea8c9f, 0x75f0c081, - 0x75f1042d, 0x75f3851f, 0x75f6051f, 0x75f8851f, - 0x75fb051f, 0x75fd851f, 0x780c049f, 0x780e419f, - 0x780f059f, 0x7811c203, 0x7812d0ad, 0x781b0103, - 0x7b80022d, 0x7b814dad, 0x7b884203, 0x7b89c081, - 0x7b8a452d, 0x7b8d0403, 0x7b908081, 0x7b91dc03, - 0x7ba0052d, 0x7ba2c8ad, 0x7ba84483, 0x7baac8ad, - 0x7c400097, 0x7c404521, 0x7c440d25, 0x7c4a8087, - 0x7c4ac115, 0x7c4b4117, 0x7c4c0d1f, 0x7c528217, - 0x7c538099, 0x7c53c097, 0x7c5a8197, 0x7c640097, - 0x7c80012f, 0x7c808081, 0x7c841603, 0x7c9004c1, - 0x7c940103, 0x7efc051f, 0xbe0001ac, 0xbe00d110, - 0xbe0947ac, 0xbe0d3910, 0xbe29872c, 0xbe2d022c, - 0xbe2e3790, 0xbe49ff90, 0xbe69bc10, -}; - -static const uint16_t unicode_decomp_table2[699] = { - 0x0020, 0x0000, 0x0061, 0x0002, 0x0004, 0x0006, 0x03bc, 0x0008, - 0x000a, 0x000c, 0x0015, 0x0095, 0x00a5, 0x00b9, 0x00c1, 0x00c3, - 0x00c7, 0x00cb, 0x00d1, 0x00d7, 0x00dd, 0x00e0, 0x00e6, 0x00f8, - 0x0108, 0x010a, 0x0073, 0x0110, 0x0112, 0x0114, 0x0120, 0x012c, - 0x0144, 0x014d, 0x0153, 0x0162, 0x0168, 0x016a, 0x0176, 0x0192, - 0x0194, 0x01a9, 0x01bb, 0x01c7, 0x01d1, 0x01d5, 0x02b9, 0x01d7, - 0x003b, 0x01d9, 0x01db, 0x00b7, 0x01e1, 0x01fc, 0x020c, 0x0218, - 0x021d, 0x0223, 0x0227, 0x03a3, 0x0233, 0x023f, 0x0242, 0x024b, - 0x024e, 0x0251, 0x025d, 0x0260, 0x0269, 0x026c, 0x026f, 0x0275, - 0x0278, 0x0281, 0x028a, 0x029c, 0x029f, 0x02a3, 0x02af, 0x02b9, - 0x02c5, 0x02c9, 0x02cd, 0x02d1, 0x02d5, 0x02e7, 0x02ed, 0x02f1, - 0x02f5, 0x02f9, 0x02fd, 0x0305, 0x0309, 0x030d, 0x0313, 0x0317, - 0x031b, 0x0323, 0x0327, 0x032b, 0x032f, 0x0335, 0x033d, 0x0341, - 0x0349, 0x034d, 0x0351, 0x0f0b, 0x0357, 0x035b, 0x035f, 0x0363, - 0x0367, 0x036b, 0x036f, 0x0373, 0x0379, 0x037d, 0x0381, 0x0385, - 0x0389, 0x038d, 0x0391, 0x0395, 0x0399, 0x039d, 0x03a1, 0x10dc, - 0x03a5, 0x03c9, 0x03cd, 0x03d9, 0x03dd, 0x03e1, 0x03ef, 0x03f1, - 0x043d, 0x044f, 0x0499, 0x04f0, 0x0502, 0x054a, 0x0564, 0x056c, - 0x0570, 0x0573, 0x059a, 0x05fa, 0x05fe, 0x0607, 0x060b, 0x0614, - 0x0618, 0x061e, 0x0622, 0x0628, 0x068e, 0x0694, 0x0698, 0x069e, - 0x06a2, 0x06ab, 0x03ac, 0x06f3, 0x03ad, 0x06f6, 0x03ae, 0x06f9, - 0x03af, 0x06fc, 0x03cc, 0x06ff, 0x03cd, 0x0702, 0x03ce, 0x0705, - 0x0709, 0x070d, 0x0711, 0x0386, 0x0732, 0x0735, 0x03b9, 0x0737, - 0x073b, 0x0388, 0x0753, 0x0389, 0x0756, 0x0390, 0x076b, 0x038a, - 0x0777, 0x03b0, 0x0789, 0x038e, 0x0799, 0x079f, 0x07a3, 0x038c, - 0x07b8, 0x038f, 0x07bb, 0x00b4, 0x07be, 0x07c0, 0x07c2, 0x2010, - 0x07cb, 0x002e, 0x07cd, 0x07cf, 0x0020, 0x07d2, 0x07d6, 0x07db, - 0x07df, 0x07e4, 0x07ea, 0x07f0, 0x0020, 0x07f6, 0x2212, 0x0801, - 0x0805, 0x0807, 0x081d, 0x0825, 0x0827, 0x0043, 0x082d, 0x0830, - 0x0190, 0x0836, 0x0839, 0x004e, 0x0845, 0x0847, 0x084c, 0x084e, - 0x0851, 0x005a, 0x03a9, 0x005a, 0x0853, 0x0857, 0x0860, 0x0069, - 0x0862, 0x0865, 0x086f, 0x0874, 0x087a, 0x087e, 0x08a2, 0x0049, - 0x08a4, 0x08a6, 0x08a9, 0x0056, 0x08ab, 0x08ad, 0x08b0, 0x08b4, - 0x0058, 0x08b6, 0x08b8, 0x08bb, 0x08c0, 0x08c2, 0x08c5, 0x0076, - 0x08c7, 0x08c9, 0x08cc, 0x08d0, 0x0078, 0x08d2, 0x08d4, 0x08d7, - 0x08db, 0x08de, 0x08e4, 0x08e7, 0x08f0, 0x08f3, 0x08f6, 0x08f9, - 0x0902, 0x0906, 0x090b, 0x090f, 0x0914, 0x0917, 0x091a, 0x0923, - 0x092c, 0x093b, 0x093e, 0x0941, 0x0944, 0x0947, 0x094a, 0x0956, - 0x095c, 0x0960, 0x0962, 0x0964, 0x0968, 0x096a, 0x0970, 0x0978, - 0x097c, 0x0980, 0x0986, 0x0989, 0x098f, 0x0991, 0x0030, 0x0993, - 0x0999, 0x099c, 0x099e, 0x09a1, 0x09a4, 0x2d61, 0x6bcd, 0x9f9f, - 0x09a6, 0x09b1, 0x09bc, 0x09c7, 0x0a95, 0x0aa1, 0x0b15, 0x0020, - 0x0b27, 0x0b31, 0x0b8d, 0x0ba1, 0x0ba5, 0x0ba9, 0x0bad, 0x0bb1, - 0x0bb5, 0x0bb9, 0x0bbd, 0x0bc1, 0x0bc5, 0x0c21, 0x0c35, 0x0c39, - 0x0c3d, 0x0c41, 0x0c45, 0x0c49, 0x0c4d, 0x0c51, 0x0c55, 0x0c59, - 0x0c6f, 0x0c71, 0x0c73, 0x0ca0, 0x0cbc, 0x0cdc, 0x0ce4, 0x0cec, - 0x0cf4, 0x0cfc, 0x0d04, 0x0d0c, 0x0d14, 0x0d22, 0x0d2e, 0x0d7a, - 0x0d82, 0x0d85, 0x0d89, 0x0d8d, 0x0d9d, 0x0db1, 0x0db5, 0x0dbc, - 0x0dc2, 0x0dc6, 0x0e28, 0x0e2c, 0x0e30, 0x0e32, 0x0e36, 0x0e3c, - 0x0e3e, 0x0e41, 0x0e43, 0x0e46, 0x0e77, 0x0e7b, 0x0e89, 0x0e8e, - 0x0e94, 0x0e9c, 0x0ea3, 0x0ea9, 0x0eb4, 0x0ebe, 0x0ec6, 0x0eca, - 0x0ecf, 0x0ed9, 0x0edd, 0x0ee4, 0x0eec, 0x0ef3, 0x0ef8, 0x0f04, - 0x0f0a, 0x0f15, 0x0f1b, 0x0f22, 0x0f28, 0x0f33, 0x0f3d, 0x0f45, - 0x0f4c, 0x0f51, 0x0f57, 0x0f5e, 0x0f63, 0x0f69, 0x0f70, 0x0f76, - 0x0f7d, 0x0f82, 0x0f89, 0x0f8d, 0x0f9e, 0x0fa4, 0x0fa9, 0x0fad, - 0x0fb8, 0x0fbe, 0x0fc9, 0x0fd0, 0x0fd6, 0x0fda, 0x0fe1, 0x0fe5, - 0x0fef, 0x0ffa, 0x1000, 0x1004, 0x1009, 0x100f, 0x1013, 0x101a, - 0x101f, 0x1023, 0x1029, 0x102f, 0x1032, 0x1036, 0x1039, 0x103f, - 0x1045, 0x1059, 0x1061, 0x1079, 0x107c, 0x1080, 0x1095, 0x10a1, - 0x10b1, 0x10c3, 0x10cb, 0x10cf, 0x10da, 0x10de, 0x10ea, 0x10f2, - 0x10f4, 0x1100, 0x1105, 0x1111, 0x1141, 0x1149, 0x114d, 0x1153, - 0x1157, 0x115a, 0x116e, 0x1171, 0x1175, 0x117b, 0x117d, 0x1181, - 0x1184, 0x118c, 0x1192, 0x1196, 0x119c, 0x11a2, 0x11a8, 0x11ab, - 0xa76f, 0x11af, 0x11b2, 0x11b6, 0x028d, 0x11be, 0x1210, 0x130e, - 0x140c, 0x1490, 0x1495, 0x1553, 0x156c, 0x1572, 0x1578, 0x157e, - 0x158a, 0x1596, 0x002b, 0x15a1, 0x15b9, 0x15bd, 0x15c1, 0x15c5, - 0x15c9, 0x15cd, 0x15e1, 0x15e5, 0x1649, 0x1662, 0x1688, 0x168e, - 0x174c, 0x1752, 0x1757, 0x1777, 0x1877, 0x187d, 0x1911, 0x19d3, - 0x1a77, 0x1a7f, 0x1a9d, 0x1aa2, 0x1ab6, 0x1ac0, 0x1ac6, 0x1ada, - 0x1adf, 0x1ae5, 0x1af3, 0x1b23, 0x1b30, 0x1b38, 0x1b3c, 0x1b52, - 0x1bc9, 0x1bdb, 0x1bdd, 0x1bdf, 0x3164, 0x1c20, 0x1c22, 0x1c24, - 0x1c26, 0x1c28, 0x1c2a, 0x1c48, 0x1c7e, 0x1cc4, 0x1cd2, 0x1cd7, - 0x1ce0, 0x1ce9, 0x1cfb, 0x1d04, 0x1d09, 0x1d29, 0x1d44, 0x1d46, - 0x1d48, 0x1d4a, 0x1d4c, 0x1d4e, 0x1d50, 0x1d52, 0x1d72, 0x1d74, - 0x1d76, 0x1d78, 0x1d7a, 0x1d81, 0x1d83, 0x1d85, 0x1d87, 0x1d96, - 0x1d98, 0x1d9a, 0x1d9c, 0x1d9e, 0x1da0, 0x1da2, 0x1da4, 0x1da6, - 0x1da8, 0x1daa, 0x1dac, 0x1dae, 0x1db0, 0x1db2, 0x1db6, 0x03f4, - 0x1db8, 0x2207, 0x1dba, 0x2202, 0x1dbc, 0x1dc4, 0x03f4, 0x1dc6, - 0x2207, 0x1dc8, 0x2202, 0x1dca, 0x1dd2, 0x03f4, 0x1dd4, 0x2207, - 0x1dd6, 0x2202, 0x1dd8, 0x1de0, 0x03f4, 0x1de2, 0x2207, 0x1de4, - 0x2202, 0x1de6, 0x1dee, 0x03f4, 0x1df0, 0x2207, 0x1df2, 0x2202, - 0x1df4, 0x1dfe, 0x1e00, 0x1e02, 0x1e04, 0x1e06, 0x1e08, 0x1e0a, - 0x1e0c, 0x1e0e, 0x1e16, 0x1e39, 0x1e3d, 0x1e43, 0x1e60, 0x062d, - 0x1e68, 0x1e74, 0x062c, 0x1e84, 0x1ef4, 0x1f00, 0x1f13, 0x1f25, - 0x1f38, 0x1f3a, 0x1f3e, 0x1f44, 0x1f4a, 0x1f4c, 0x1f50, 0x1f52, - 0x1f5a, 0x1f5d, 0x1f5f, 0x1f65, 0x1f67, 0x30b5, 0x1f6d, 0x1fc5, - 0x1fdb, 0x1fdf, 0x1fe1, 0x1fe6, 0x2033, 0x2044, 0x2145, 0x2155, - 0x215b, 0x2255, 0x2373, -}; - -static const uint8_t unicode_decomp_data[9345] = { - 0x20, 0x88, 0x20, 0x84, 0x32, 0x33, 0x20, 0x81, - 0x20, 0xa7, 0x31, 0x6f, 0x31, 0xd0, 0x34, 0x31, - 0xd0, 0x32, 0x33, 0xd0, 0x34, 0x41, 0x80, 0x41, - 0x81, 0x41, 0x82, 0x41, 0x83, 0x41, 0x88, 0x41, - 0x8a, 0x00, 0x00, 0x43, 0xa7, 0x45, 0x80, 0x45, - 0x81, 0x45, 0x82, 0x45, 0x88, 0x49, 0x80, 0x49, - 0x81, 0x49, 0x82, 0x49, 0x88, 0x00, 0x00, 0x4e, - 0x83, 0x4f, 0x80, 0x4f, 0x81, 0x4f, 0x82, 0x4f, - 0x83, 0x4f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x55, - 0x80, 0x55, 0x81, 0x55, 0x82, 0x55, 0x88, 0x59, - 0x81, 0x00, 0x00, 0x00, 0x00, 0x61, 0x80, 0x61, - 0x81, 0x61, 0x82, 0x61, 0x83, 0x61, 0x88, 0x61, - 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0x57c1, 0x5800, 0x5801, 0x5840, 0x5841, 0x5880, 0x5881, 0x5900, - 0x5901, 0x5902, 0x5903, 0x5940, 0x8f40, 0x8f42, 0x8f80, 0x8fc0, - 0x8fc1, 0x9000, 0x9001, 0x9041, 0x9040, 0x9043, 0x9080, 0x9081, - 0x90c0, -}; - -typedef enum { - UNICODE_GC_Cn, - UNICODE_GC_Lu, - UNICODE_GC_Ll, - UNICODE_GC_Lt, - UNICODE_GC_Lm, - UNICODE_GC_Lo, - UNICODE_GC_Mn, - UNICODE_GC_Mc, - UNICODE_GC_Me, - UNICODE_GC_Nd, - UNICODE_GC_Nl, - UNICODE_GC_No, - UNICODE_GC_Sm, - UNICODE_GC_Sc, - UNICODE_GC_Sk, - UNICODE_GC_So, - UNICODE_GC_Pc, - UNICODE_GC_Pd, - UNICODE_GC_Ps, - UNICODE_GC_Pe, - UNICODE_GC_Pi, - UNICODE_GC_Pf, - UNICODE_GC_Po, - UNICODE_GC_Zs, - UNICODE_GC_Zl, - UNICODE_GC_Zp, - UNICODE_GC_Cc, - UNICODE_GC_Cf, - UNICODE_GC_Cs, - UNICODE_GC_Co, - UNICODE_GC_LC, - UNICODE_GC_L, - UNICODE_GC_M, - UNICODE_GC_N, - UNICODE_GC_S, - UNICODE_GC_P, - UNICODE_GC_Z, - UNICODE_GC_C, - UNICODE_GC_COUNT, -} UnicodeGCEnum; - -static const char unicode_gc_name_table[] = - "Cn,Unassigned" "\0" - "Lu,Uppercase_Letter" "\0" - "Ll,Lowercase_Letter" "\0" - "Lt,Titlecase_Letter" "\0" - "Lm,Modifier_Letter" "\0" - "Lo,Other_Letter" "\0" - "Mn,Nonspacing_Mark" "\0" - "Mc,Spacing_Mark" "\0" - "Me,Enclosing_Mark" "\0" - "Nd,Decimal_Number,digit" "\0" - "Nl,Letter_Number" "\0" - "No,Other_Number" "\0" - "Sm,Math_Symbol" "\0" - "Sc,Currency_Symbol" "\0" - "Sk,Modifier_Symbol" "\0" - "So,Other_Symbol" "\0" - "Pc,Connector_Punctuation" "\0" - "Pd,Dash_Punctuation" "\0" - "Ps,Open_Punctuation" "\0" - "Pe,Close_Punctuation" "\0" - "Pi,Initial_Punctuation" "\0" - "Pf,Final_Punctuation" "\0" - "Po,Other_Punctuation" "\0" - "Zs,Space_Separator" "\0" - "Zl,Line_Separator" "\0" - "Zp,Paragraph_Separator" "\0" - "Cc,Control,cntrl" "\0" - "Cf,Format" "\0" - "Cs,Surrogate" "\0" - "Co,Private_Use" "\0" - "LC,Cased_Letter" "\0" - "L,Letter" "\0" - "M,Mark,Combining_Mark" "\0" - "N,Number" "\0" - "S,Symbol" "\0" - "P,Punctuation,punct" "\0" - "Z,Separator" "\0" - "C,Other" "\0" -; - -static const uint8_t unicode_gc_table[3948] = { - 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0x00, 0x05, 0x20, 0x05, 0x00, 0xe5, 0x02, 0x00, - 0x65, 0x00, 0x05, 0x00, 0x05, 0xa0, 0x05, 0x60, - 0x05, 0x00, 0x05, 0x00, 0x05, 0x00, 0x45, 0x00, - 0x25, 0x00, 0x05, 0x20, 0x05, 0x00, 0x05, 0x00, - 0x05, 0x00, 0x05, 0x00, 0x05, 0x00, 0x25, 0x00, - 0x05, 0x20, 0x65, 0x00, 0xc5, 0x00, 0x65, 0x00, - 0x65, 0x00, 0x05, 0x00, 0xe5, 0x02, 0x00, 0xe5, - 0x09, 0x80, 0x45, 0x00, 0x85, 0x00, 0xe5, 0x09, - 0xe0, 0x2c, 0x2c, 0xe0, 0x80, 0x86, 0xef, 0x24, - 0x60, 0xef, 0x5c, 0xe0, 0x04, 0xef, 0x07, 0x20, - 0xef, 0x07, 0x00, 0xef, 0x07, 0x00, 0xef, 0x1d, - 0xe0, 0x02, 0xeb, 0x05, 0xef, 0x80, 0x19, 0xe0, - 0x30, 0xef, 0x15, 0xe0, 0x05, 0xef, 0x24, 0x60, - 0xef, 0x01, 0xc0, 0x2f, 0xe0, 0x06, 0xaf, 0xe0, - 0x80, 0x12, 0xef, 0x80, 0x73, 0x8e, 0xef, 0x82, - 0x50, 0x60, 0xef, 0x09, 0x40, 0xef, 0x05, 0x40, - 0xef, 0x6f, 0x60, 0xef, 0x57, 0xa0, 0xef, 0x04, - 0x60, 0x0f, 0xe0, 0x07, 0xef, 0x04, 0x60, 0xef, - 0x30, 0xe0, 0x00, 0xef, 0x02, 0xa0, 0xef, 0x20, - 0xe0, 0x00, 0xef, 0x16, 0x20, 0x2f, 0xe0, 0x46, - 0xef, 0x80, 0xcc, 0xe0, 0x04, 0xef, 0x06, 0x20, - 0xef, 0x05, 0x40, 0xef, 0x01, 0xc0, 0xef, 0x26, - 0x00, 0xcf, 0xe0, 0x00, 0xef, 0x06, 0x60, 0xef, - 0x01, 0xc0, 0xef, 0x01, 0xc0, 0xef, 0x80, 0x0b, - 0x00, 0xef, 0x2f, 0xe0, 0x1d, 0xe9, 0x02, 0xe0, - 0x83, 0x7e, 0xe5, 0xc0, 0x66, 0x58, 0xe0, 0x18, - 0xe5, 0x8f, 0xb2, 0xa0, 0xe5, 0x80, 0x56, 0x20, - 0xe5, 0x95, 0xfa, 0xe0, 0x06, 0xe5, 0x9c, 0xa9, - 0xe0, 0x8b, 0x97, 0xe5, 0x81, 0x96, 0xe0, 0x85, - 0x5a, 0xe5, 0x92, 0xc3, 0x80, 0xe5, 0x8f, 0xd8, - 0xe0, 0xca, 0x9b, 0xc9, 0x1b, 0xe0, 0x16, 0xfb, - 0x58, 0xe0, 0x78, 0xe6, 0x80, 0x68, 0xe0, 0xc0, - 0xbd, 0x88, 0xfd, 0xc0, 0xbf, 0x76, 0x20, 0xfd, - 0xc0, 0xbf, 0x76, 0x20, -}; - -typedef enum { - UNICODE_SCRIPT_Unknown, - UNICODE_SCRIPT_Adlam, - UNICODE_SCRIPT_Ahom, - UNICODE_SCRIPT_Anatolian_Hieroglyphs, - UNICODE_SCRIPT_Arabic, - UNICODE_SCRIPT_Armenian, - UNICODE_SCRIPT_Avestan, - UNICODE_SCRIPT_Balinese, - UNICODE_SCRIPT_Bamum, - UNICODE_SCRIPT_Bassa_Vah, - UNICODE_SCRIPT_Batak, - UNICODE_SCRIPT_Bengali, - UNICODE_SCRIPT_Bhaiksuki, - UNICODE_SCRIPT_Bopomofo, - UNICODE_SCRIPT_Brahmi, - UNICODE_SCRIPT_Braille, - UNICODE_SCRIPT_Buginese, - UNICODE_SCRIPT_Buhid, - UNICODE_SCRIPT_Canadian_Aboriginal, - UNICODE_SCRIPT_Carian, - UNICODE_SCRIPT_Caucasian_Albanian, - UNICODE_SCRIPT_Chakma, - UNICODE_SCRIPT_Cham, - UNICODE_SCRIPT_Cherokee, - UNICODE_SCRIPT_Chorasmian, - UNICODE_SCRIPT_Common, - UNICODE_SCRIPT_Coptic, - UNICODE_SCRIPT_Cuneiform, - UNICODE_SCRIPT_Cypriot, - UNICODE_SCRIPT_Cyrillic, - UNICODE_SCRIPT_Cypro_Minoan, - UNICODE_SCRIPT_Deseret, - UNICODE_SCRIPT_Devanagari, - UNICODE_SCRIPT_Dives_Akuru, - UNICODE_SCRIPT_Dogra, - UNICODE_SCRIPT_Duployan, - UNICODE_SCRIPT_Egyptian_Hieroglyphs, - UNICODE_SCRIPT_Elbasan, - UNICODE_SCRIPT_Elymaic, - UNICODE_SCRIPT_Ethiopic, - UNICODE_SCRIPT_Georgian, - UNICODE_SCRIPT_Glagolitic, - UNICODE_SCRIPT_Gothic, - UNICODE_SCRIPT_Grantha, - UNICODE_SCRIPT_Greek, - UNICODE_SCRIPT_Gujarati, - UNICODE_SCRIPT_Gunjala_Gondi, - UNICODE_SCRIPT_Gurmukhi, - UNICODE_SCRIPT_Han, - UNICODE_SCRIPT_Hangul, - UNICODE_SCRIPT_Hanifi_Rohingya, - UNICODE_SCRIPT_Hanunoo, - UNICODE_SCRIPT_Hatran, - UNICODE_SCRIPT_Hebrew, - UNICODE_SCRIPT_Hiragana, - UNICODE_SCRIPT_Imperial_Aramaic, - UNICODE_SCRIPT_Inherited, - UNICODE_SCRIPT_Inscriptional_Pahlavi, - UNICODE_SCRIPT_Inscriptional_Parthian, - UNICODE_SCRIPT_Javanese, - UNICODE_SCRIPT_Kaithi, - UNICODE_SCRIPT_Kannada, - UNICODE_SCRIPT_Katakana, - UNICODE_SCRIPT_Kawi, - UNICODE_SCRIPT_Kayah_Li, - UNICODE_SCRIPT_Kharoshthi, - UNICODE_SCRIPT_Khmer, - UNICODE_SCRIPT_Khojki, - UNICODE_SCRIPT_Khitan_Small_Script, - UNICODE_SCRIPT_Khudawadi, - UNICODE_SCRIPT_Lao, - UNICODE_SCRIPT_Latin, - UNICODE_SCRIPT_Lepcha, - UNICODE_SCRIPT_Limbu, - UNICODE_SCRIPT_Linear_A, - UNICODE_SCRIPT_Linear_B, - UNICODE_SCRIPT_Lisu, - UNICODE_SCRIPT_Lycian, - UNICODE_SCRIPT_Lydian, - UNICODE_SCRIPT_Makasar, - UNICODE_SCRIPT_Mahajani, - UNICODE_SCRIPT_Malayalam, - UNICODE_SCRIPT_Mandaic, - UNICODE_SCRIPT_Manichaean, - UNICODE_SCRIPT_Marchen, - UNICODE_SCRIPT_Masaram_Gondi, - UNICODE_SCRIPT_Medefaidrin, - UNICODE_SCRIPT_Meetei_Mayek, - UNICODE_SCRIPT_Mende_Kikakui, - UNICODE_SCRIPT_Meroitic_Cursive, - UNICODE_SCRIPT_Meroitic_Hieroglyphs, - UNICODE_SCRIPT_Miao, - UNICODE_SCRIPT_Modi, - UNICODE_SCRIPT_Mongolian, - UNICODE_SCRIPT_Mro, - UNICODE_SCRIPT_Multani, - UNICODE_SCRIPT_Myanmar, - UNICODE_SCRIPT_Nabataean, - UNICODE_SCRIPT_Nag_Mundari, - UNICODE_SCRIPT_Nandinagari, - UNICODE_SCRIPT_New_Tai_Lue, - UNICODE_SCRIPT_Newa, - UNICODE_SCRIPT_Nko, - UNICODE_SCRIPT_Nushu, - UNICODE_SCRIPT_Nyiakeng_Puachue_Hmong, - UNICODE_SCRIPT_Ogham, - UNICODE_SCRIPT_Ol_Chiki, - UNICODE_SCRIPT_Old_Hungarian, - UNICODE_SCRIPT_Old_Italic, - UNICODE_SCRIPT_Old_North_Arabian, - UNICODE_SCRIPT_Old_Permic, - UNICODE_SCRIPT_Old_Persian, - UNICODE_SCRIPT_Old_Sogdian, - UNICODE_SCRIPT_Old_South_Arabian, - UNICODE_SCRIPT_Old_Turkic, - UNICODE_SCRIPT_Old_Uyghur, - UNICODE_SCRIPT_Oriya, - UNICODE_SCRIPT_Osage, - UNICODE_SCRIPT_Osmanya, - UNICODE_SCRIPT_Pahawh_Hmong, - UNICODE_SCRIPT_Palmyrene, - UNICODE_SCRIPT_Pau_Cin_Hau, - UNICODE_SCRIPT_Phags_Pa, - UNICODE_SCRIPT_Phoenician, - UNICODE_SCRIPT_Psalter_Pahlavi, - UNICODE_SCRIPT_Rejang, - UNICODE_SCRIPT_Runic, - UNICODE_SCRIPT_Samaritan, - UNICODE_SCRIPT_Saurashtra, - UNICODE_SCRIPT_Sharada, - UNICODE_SCRIPT_Shavian, - UNICODE_SCRIPT_Siddham, - UNICODE_SCRIPT_SignWriting, - UNICODE_SCRIPT_Sinhala, - UNICODE_SCRIPT_Sogdian, - UNICODE_SCRIPT_Sora_Sompeng, - UNICODE_SCRIPT_Soyombo, - UNICODE_SCRIPT_Sundanese, - UNICODE_SCRIPT_Syloti_Nagri, - UNICODE_SCRIPT_Syriac, - UNICODE_SCRIPT_Tagalog, - UNICODE_SCRIPT_Tagbanwa, - UNICODE_SCRIPT_Tai_Le, - UNICODE_SCRIPT_Tai_Tham, - UNICODE_SCRIPT_Tai_Viet, - UNICODE_SCRIPT_Takri, - UNICODE_SCRIPT_Tamil, - UNICODE_SCRIPT_Tangut, - UNICODE_SCRIPT_Telugu, - UNICODE_SCRIPT_Thaana, - UNICODE_SCRIPT_Thai, - UNICODE_SCRIPT_Tibetan, - UNICODE_SCRIPT_Tifinagh, - UNICODE_SCRIPT_Tirhuta, - UNICODE_SCRIPT_Tangsa, - UNICODE_SCRIPT_Toto, - UNICODE_SCRIPT_Ugaritic, - UNICODE_SCRIPT_Vai, - UNICODE_SCRIPT_Vithkuqi, - UNICODE_SCRIPT_Wancho, - UNICODE_SCRIPT_Warang_Citi, - UNICODE_SCRIPT_Yezidi, - UNICODE_SCRIPT_Yi, - UNICODE_SCRIPT_Zanabazar_Square, - UNICODE_SCRIPT_COUNT, -} UnicodeScriptEnum; - -static const char unicode_script_name_table[] = - "Adlam,Adlm" "\0" - "Ahom,Ahom" "\0" - "Anatolian_Hieroglyphs,Hluw" "\0" - "Arabic,Arab" "\0" - "Armenian,Armn" "\0" - "Avestan,Avst" "\0" - "Balinese,Bali" "\0" - "Bamum,Bamu" "\0" - "Bassa_Vah,Bass" "\0" - "Batak,Batk" "\0" - "Bengali,Beng" "\0" - "Bhaiksuki,Bhks" "\0" - "Bopomofo,Bopo" "\0" - "Brahmi,Brah" "\0" - "Braille,Brai" "\0" - "Buginese,Bugi" "\0" - "Buhid,Buhd" "\0" - "Canadian_Aboriginal,Cans" "\0" - "Carian,Cari" "\0" - "Caucasian_Albanian,Aghb" "\0" - "Chakma,Cakm" "\0" - "Cham,Cham" "\0" - "Cherokee,Cher" "\0" - "Chorasmian,Chrs" "\0" - "Common,Zyyy" "\0" - "Coptic,Copt,Qaac" "\0" - "Cuneiform,Xsux" "\0" - "Cypriot,Cprt" "\0" - "Cyrillic,Cyrl" "\0" - "Cypro_Minoan,Cpmn" "\0" - "Deseret,Dsrt" "\0" - "Devanagari,Deva" "\0" - "Dives_Akuru,Diak" "\0" - "Dogra,Dogr" "\0" - "Duployan,Dupl" "\0" - "Egyptian_Hieroglyphs,Egyp" "\0" - "Elbasan,Elba" "\0" - "Elymaic,Elym" "\0" - "Ethiopic,Ethi" "\0" - "Georgian,Geor" "\0" - "Glagolitic,Glag" "\0" - "Gothic,Goth" "\0" - "Grantha,Gran" "\0" - "Greek,Grek" "\0" - "Gujarati,Gujr" "\0" - "Gunjala_Gondi,Gong" "\0" - "Gurmukhi,Guru" "\0" - "Han,Hani" "\0" - "Hangul,Hang" "\0" - "Hanifi_Rohingya,Rohg" "\0" - "Hanunoo,Hano" "\0" - "Hatran,Hatr" "\0" - "Hebrew,Hebr" "\0" - "Hiragana,Hira" "\0" - "Imperial_Aramaic,Armi" "\0" - "Inherited,Zinh,Qaai" "\0" - "Inscriptional_Pahlavi,Phli" "\0" - "Inscriptional_Parthian,Prti" "\0" - "Javanese,Java" "\0" - "Kaithi,Kthi" "\0" - "Kannada,Knda" "\0" - "Katakana,Kana" "\0" - "Kawi,Kawi" "\0" - "Kayah_Li,Kali" "\0" - "Kharoshthi,Khar" "\0" - "Khmer,Khmr" "\0" - "Khojki,Khoj" "\0" - "Khitan_Small_Script,Kits" "\0" - "Khudawadi,Sind" "\0" - "Lao,Laoo" "\0" - "Latin,Latn" "\0" - "Lepcha,Lepc" "\0" - "Limbu,Limb" "\0" - "Linear_A,Lina" "\0" - "Linear_B,Linb" "\0" - "Lisu,Lisu" "\0" - "Lycian,Lyci" "\0" - "Lydian,Lydi" "\0" - "Makasar,Maka" "\0" - "Mahajani,Mahj" "\0" - "Malayalam,Mlym" "\0" - "Mandaic,Mand" "\0" - "Manichaean,Mani" "\0" - "Marchen,Marc" "\0" - "Masaram_Gondi,Gonm" "\0" - "Medefaidrin,Medf" "\0" - "Meetei_Mayek,Mtei" "\0" - "Mende_Kikakui,Mend" "\0" - "Meroitic_Cursive,Merc" "\0" - "Meroitic_Hieroglyphs,Mero" "\0" - "Miao,Plrd" "\0" - "Modi,Modi" "\0" - "Mongolian,Mong" "\0" - "Mro,Mroo" "\0" - "Multani,Mult" "\0" - "Myanmar,Mymr" "\0" - "Nabataean,Nbat" "\0" - "Nag_Mundari,Nagm" "\0" - "Nandinagari,Nand" "\0" - "New_Tai_Lue,Talu" "\0" - "Newa,Newa" "\0" - "Nko,Nkoo" "\0" - "Nushu,Nshu" "\0" - "Nyiakeng_Puachue_Hmong,Hmnp" "\0" - "Ogham,Ogam" "\0" - "Ol_Chiki,Olck" "\0" - "Old_Hungarian,Hung" "\0" - "Old_Italic,Ital" "\0" - "Old_North_Arabian,Narb" "\0" - "Old_Permic,Perm" "\0" - "Old_Persian,Xpeo" "\0" - "Old_Sogdian,Sogo" "\0" - "Old_South_Arabian,Sarb" "\0" - "Old_Turkic,Orkh" "\0" - "Old_Uyghur,Ougr" "\0" - "Oriya,Orya" "\0" - "Osage,Osge" "\0" - "Osmanya,Osma" "\0" - "Pahawh_Hmong,Hmng" "\0" - "Palmyrene,Palm" "\0" - "Pau_Cin_Hau,Pauc" "\0" - "Phags_Pa,Phag" "\0" - "Phoenician,Phnx" "\0" - "Psalter_Pahlavi,Phlp" "\0" - "Rejang,Rjng" "\0" - "Runic,Runr" "\0" - "Samaritan,Samr" "\0" - "Saurashtra,Saur" "\0" - "Sharada,Shrd" "\0" - "Shavian,Shaw" "\0" - "Siddham,Sidd" "\0" - "SignWriting,Sgnw" "\0" - "Sinhala,Sinh" "\0" - "Sogdian,Sogd" "\0" - "Sora_Sompeng,Sora" "\0" - "Soyombo,Soyo" "\0" - "Sundanese,Sund" "\0" - "Syloti_Nagri,Sylo" "\0" - "Syriac,Syrc" "\0" - "Tagalog,Tglg" "\0" - "Tagbanwa,Tagb" "\0" - "Tai_Le,Tale" "\0" - "Tai_Tham,Lana" "\0" - "Tai_Viet,Tavt" "\0" - "Takri,Takr" "\0" - "Tamil,Taml" "\0" - "Tangut,Tang" "\0" - "Telugu,Telu" "\0" - "Thaana,Thaa" "\0" - "Thai,Thai" "\0" - "Tibetan,Tibt" "\0" - "Tifinagh,Tfng" "\0" - "Tirhuta,Tirh" "\0" - "Tangsa,Tnsa" "\0" - "Toto,Toto" "\0" - "Ugaritic,Ugar" "\0" - "Vai,Vaii" "\0" - "Vithkuqi,Vith" "\0" - "Wancho,Wcho" "\0" - "Warang_Citi,Wara" "\0" - "Yezidi,Yezi" "\0" - "Yi,Yiii" "\0" - "Zanabazar_Square,Zanb" "\0" -; - -static const uint8_t unicode_script_table[2720] = { - 0xc0, 0x19, 0x99, 0x47, 0x85, 0x19, 0x99, 0x47, - 0xae, 0x19, 0x80, 0x47, 0x8e, 0x19, 0x80, 0x47, - 0x84, 0x19, 0x96, 0x47, 0x80, 0x19, 0x9e, 0x47, - 0x80, 0x19, 0xe1, 0x60, 0x47, 0xa6, 0x19, 0x84, - 0x47, 0x84, 0x19, 0x81, 0x0d, 0x93, 0x19, 0xe0, - 0x0f, 0x38, 0x83, 0x2c, 0x80, 0x19, 0x82, 0x2c, - 0x01, 0x83, 0x2c, 0x80, 0x19, 0x80, 0x2c, 0x03, - 0x80, 0x2c, 0x80, 0x19, 0x80, 0x2c, 0x80, 0x19, - 0x82, 0x2c, 0x00, 0x80, 0x2c, 0x00, 0x93, 0x2c, - 0x00, 0xbe, 0x2c, 0x8d, 0x1a, 0x8f, 0x2c, 0xe0, - 0x24, 0x1d, 0x81, 0x38, 0xe0, 0x48, 0x1d, 0x00, - 0xa5, 0x05, 0x01, 0xb1, 0x05, 0x01, 0x82, 0x05, - 0x00, 0xb6, 0x35, 0x07, 0x9a, 0x35, 0x03, 0x85, - 0x35, 0x0a, 0x84, 0x04, 0x80, 0x19, 0x85, 0x04, - 0x80, 0x19, 0x8d, 0x04, 0x80, 0x19, 0x82, 0x04, - 0x80, 0x19, 0x9f, 0x04, 0x80, 0x19, 0x89, 0x04, - 0x8a, 0x38, 0x99, 0x04, 0x80, 0x38, 0xe0, 0x0b, - 0x04, 0x80, 0x19, 0xa1, 0x04, 0x8d, 0x8b, 0x00, - 0xbb, 0x8b, 0x01, 0x82, 0x8b, 0xaf, 0x04, 0xb1, - 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0x2b, 0x92, 0x36, 0x00, 0x01, 0x02, 0x2b, 0x92, - 0x8c, 0x12, 0x00, 0x01, 0x02, 0x2b, 0x92, 0x00, - 0x00, 0x00, 0x02, 0x2b, 0x92, 0xc0, 0x5c, 0x4b, - 0x00, 0x03, 0x01, 0x23, 0x96, 0x3b, 0x00, 0x11, - 0x01, 0x30, 0x9e, 0x5d, 0x00, 0x01, 0x01, 0x30, - 0xce, 0xcd, 0x2d, 0x00, -}; - -static const uint8_t unicode_prop_Hyphen_table[28] = { - 0xac, 0x80, 0xfe, 0x80, 0x44, 0xdb, 0x80, 0x52, - 0x7a, 0x80, 0x48, 0x08, 0x81, 0x4e, 0x04, 0x80, - 0x42, 0xe2, 0x80, 0x60, 0xcd, 0x66, 0x80, 0x40, - 0xa8, 0x80, 0xd6, 0x80, -}; - -static const uint8_t unicode_prop_Other_Math_table[200] = { - 0xdd, 0x80, 0x43, 0x70, 0x11, 0x80, 0x99, 0x09, - 0x81, 0x5c, 0x1f, 0x80, 0x9a, 0x82, 0x8a, 0x80, - 0x9f, 0x83, 0x97, 0x81, 0x8d, 0x81, 0xc0, 0x8c, - 0x18, 0x11, 0x1c, 0x91, 0x03, 0x01, 0x89, 0x00, - 0x14, 0x28, 0x11, 0x09, 0x02, 0x05, 0x13, 0x24, - 0xca, 0x21, 0x18, 0x08, 0x08, 0x00, 0x21, 0x0b, - 0x0b, 0x91, 0x09, 0x00, 0x06, 0x00, 0x29, 0x41, - 0x21, 0x83, 0x40, 0xa7, 0x08, 0x80, 0x97, 0x80, - 0x90, 0x80, 0x41, 0xbc, 0x81, 0x8b, 0x88, 0x24, - 0x21, 0x09, 0x14, 0x8d, 0x00, 0x01, 0x85, 0x97, - 0x81, 0xb8, 0x00, 0x80, 0x9c, 0x83, 0x88, 0x81, - 0x41, 0x55, 0x81, 0x9e, 0x89, 0x41, 0x92, 0x95, - 0xbe, 0x83, 0x9f, 0x81, 0x60, 0xd4, 0x62, 0x00, - 0x03, 0x80, 0x40, 0xd2, 0x00, 0x80, 0x60, 0xd4, - 0xc0, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, - 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, - 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, - 0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e, - 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, - 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x81, - 0xb1, 0x55, 0xff, 0x18, 0x9a, 0x01, 0x00, 0x08, - 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00, - 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, - 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00, - 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90, -}; - -static const uint8_t unicode_prop_Other_Alphabetic_table[428] = { - 0x43, 0x44, 0x80, 0x42, 0x69, 0x8d, 0x00, 0x01, - 0x01, 0x00, 0xc7, 0x8a, 0xaf, 0x8c, 0x06, 0x8f, - 0x80, 0xe4, 0x33, 0x19, 0x0b, 0x80, 0xa2, 0x80, - 0x9d, 0x8f, 0xe5, 0x8a, 0xe4, 0x0a, 0x88, 0x02, - 0x03, 0x40, 0xa6, 0x8b, 0x16, 0x85, 0x93, 0xb5, - 0x09, 0x8e, 0x01, 0x22, 0x89, 0x81, 0x9c, 0x82, - 0xb9, 0x31, 0x09, 0x81, 0x89, 0x80, 0x89, 0x81, - 0x9c, 0x82, 0xb9, 0x23, 0x09, 0x0b, 0x80, 0x9d, - 0x0a, 0x80, 0x8a, 0x82, 0xb9, 0x38, 0x10, 0x81, - 0x94, 0x81, 0x95, 0x13, 0x82, 0xb9, 0x31, 0x09, - 0x81, 0x88, 0x81, 0x89, 0x81, 0x9d, 0x80, 0xba, - 0x22, 0x10, 0x82, 0x89, 0x80, 0xa7, 0x84, 0xb8, - 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x9c, 0x82, - 0xb9, 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x8e, - 0x80, 0x8b, 0x83, 0xb9, 0x30, 0x10, 0x82, 0x89, - 0x80, 0x89, 0x81, 0x9c, 0x82, 0xca, 0x28, 0x00, - 0x87, 0x91, 0x81, 0xbc, 0x01, 0x86, 0x91, 0x80, - 0xe2, 0x01, 0x28, 0x81, 0x8f, 0x80, 0x40, 0xa2, - 0x92, 0x88, 0x8a, 0x80, 0xa3, 0xed, 0x8b, 0x00, - 0x0b, 0x96, 0x1b, 0x10, 0x11, 0x32, 0x83, 0x8c, - 0x8b, 0x00, 0x89, 0x83, 0x46, 0x73, 0x81, 0x9d, - 0x81, 0x9d, 0x81, 0x9d, 0x81, 0xc1, 0x92, 0x40, - 0xbb, 0x81, 0xa1, 0x80, 0xf5, 0x8b, 0x83, 0x88, - 0x40, 0xdd, 0x84, 0xb8, 0x89, 0x81, 0x93, 0xc9, - 0x81, 0x8a, 0x82, 0xb0, 0x84, 0xaf, 0x8e, 0xbb, - 0x82, 0x9d, 0x88, 0x09, 0xb8, 0x8a, 0xb1, 0x92, - 0x41, 0xaf, 0x8d, 0x46, 0xc0, 0xb3, 0x48, 0xf5, - 0x9f, 0x60, 0x78, 0x73, 0x87, 0xa1, 0x81, 0x41, - 0x61, 0x07, 0x80, 0x96, 0x84, 0xd7, 0x81, 0xb1, - 0x8f, 0x00, 0xb8, 0x80, 0xa5, 0x84, 0x9b, 0x8b, - 0xac, 0x83, 0xaf, 0x8b, 0xa4, 0x80, 0xc2, 0x8d, - 0x8b, 0x07, 0x81, 0xac, 0x82, 0xb1, 0x00, 0x11, - 0x0c, 0x80, 0xab, 0x24, 0x80, 0x40, 0xec, 0x87, - 0x60, 0x4f, 0x32, 0x80, 0x48, 0x56, 0x84, 0x46, - 0x85, 0x10, 0x0c, 0x83, 0x43, 0x13, 0x83, 0x41, - 0x82, 0x81, 0x41, 0x52, 0x82, 0xb4, 0x8d, 0xac, - 0x81, 0x8a, 0x82, 0xac, 0x88, 0x88, 0x80, 0xbc, - 0x82, 0xa3, 0x8b, 0x91, 0x81, 0xb8, 0x82, 0xaf, - 0x8c, 0x8d, 0x81, 0xdb, 0x88, 0x08, 0x28, 0x08, - 0x40, 0x9c, 0x89, 0x96, 0x83, 0xb9, 0x31, 0x09, - 0x81, 0x89, 0x80, 0x89, 0x81, 0x40, 0xd0, 0x8c, - 0x02, 0xe9, 0x91, 0x40, 0xec, 0x31, 0x86, 0x9c, - 0x81, 0xd1, 0x8e, 0x00, 0xe9, 0x8a, 0xe6, 0x8d, - 0x41, 0x00, 0x8c, 0x40, 0xf6, 0x28, 0x09, 0x0a, - 0x00, 0x80, 0x40, 0x8d, 0x31, 0x2b, 0x80, 0x9b, - 0x89, 0xa9, 0x20, 0x83, 0x91, 0x8a, 0xad, 0x8d, - 0x41, 0x96, 0x38, 0x86, 0xd2, 0x95, 0x80, 0x8d, - 0xf9, 0x2a, 0x00, 0x08, 0x10, 0x02, 0x80, 0xc1, - 0x20, 0x08, 0x83, 0x41, 0x5b, 0x83, 0x88, 0x08, - 0x80, 0xaf, 0x32, 0x82, 0x60, 0x50, 0x0d, 0x00, - 0xb6, 0x33, 0xdc, 0x81, 0x60, 0x4c, 0xab, 0x80, - 0x60, 0x23, 0x60, 0x30, 0x90, 0x0e, 0x01, 0x04, - 0xe3, 0x80, 0x48, 0xb6, 0x80, 0x47, 0xe7, 0x99, - 0x85, 0x99, 0x85, 0x99, -}; - -static const uint8_t unicode_prop_Other_Lowercase_table[69] = { - 0x40, 0xa9, 0x80, 0x8e, 0x80, 0x41, 0xf4, 0x88, - 0x31, 0x9d, 0x84, 0xdf, 0x80, 0xb3, 0x80, 0x4d, - 0x80, 0x80, 0x4c, 0x2e, 0xbe, 0x8c, 0x80, 0xa1, - 0xa4, 0x42, 0xb0, 0x80, 0x8c, 0x80, 0x8f, 0x8c, - 0x40, 0xd2, 0x8f, 0x43, 0x4f, 0x99, 0x47, 0x91, - 0x81, 0x60, 0x7a, 0x1d, 0x81, 0x40, 0xd1, 0x80, - 0x40, 0x80, 0x12, 0x81, 0x43, 0x61, 0x83, 0x88, - 0x80, 0x60, 0x5c, 0x15, 0x01, 0x10, 0xa9, 0x80, - 0x88, 0x60, 0xd8, 0x74, 0xbd, -}; - -static const uint8_t unicode_prop_Other_Uppercase_table[15] = { - 0x60, 0x21, 0x5f, 0x8f, 0x43, 0x45, 0x99, 0x61, - 0xcc, 0x5f, 0x99, 0x85, 0x99, 0x85, 0x99, -}; - -static const uint8_t unicode_prop_Other_Grapheme_Extend_table[65] = { - 0x49, 0xbd, 0x80, 0x97, 0x80, 0x41, 0x65, 0x80, - 0x97, 0x80, 0xe5, 0x80, 0x97, 0x80, 0x40, 0xe9, - 0x80, 0x91, 0x81, 0xe6, 0x80, 0x97, 0x80, 0xf6, - 0x80, 0x8e, 0x80, 0x4d, 0x54, 0x80, 0x44, 0xd5, - 0x80, 0x50, 0x20, 0x81, 0x60, 0xcf, 0x6d, 0x81, - 0x53, 0x9d, 0x80, 0x97, 0x80, 0x41, 0x57, 0x80, - 0x8b, 0x80, 0x40, 0xf0, 0x80, 0x43, 0x7f, 0x80, - 0x60, 0xb8, 0x33, 0x07, 0x84, 0x6c, 0x2e, 0xac, - 0xdf, -}; - -static const uint8_t unicode_prop_Other_Default_Ignorable_Code_Point_table[32] = { - 0x43, 0x4e, 0x80, 0x4e, 0x0e, 0x81, 0x46, 0x52, - 0x81, 0x48, 0xae, 0x80, 0x50, 0xfd, 0x80, 0x60, - 0xce, 0x3a, 0x80, 0xce, 0x88, 0x6d, 0x00, 0x06, - 0x00, 0x9d, 0xdf, 0xff, 0x40, 0xef, 0x4e, 0x0f, -}; - -static const uint8_t unicode_prop_Other_ID_Start_table[11] = { - 0x58, 0x84, 0x81, 0x48, 0x90, 0x80, 0x94, 0x80, - 0x4f, 0x6b, 0x81, -}; - -static const uint8_t unicode_prop_Other_ID_Continue_table[12] = { - 0x40, 0xb6, 0x80, 0x42, 0xce, 0x80, 0x4f, 0xe0, - 0x88, 0x46, 0x67, 0x80, -}; - -static const uint8_t unicode_prop_Prepended_Concatenation_Mark_table[19] = { - 0x45, 0xff, 0x85, 0x40, 0xd6, 0x80, 0xb0, 0x80, - 0x41, 0x7f, 0x81, 0xcf, 0x80, 0x61, 0x07, 0xd9, - 0x80, 0x8e, 0x80, -}; - -static const uint8_t unicode_prop_XID_Start1_table[31] = { - 0x43, 0x79, 0x80, 0x4a, 0xb7, 0x80, 0xfe, 0x80, - 0x60, 0x21, 0xe6, 0x81, 0x60, 0xcb, 0xc0, 0x85, - 0x41, 0x95, 0x81, 0xf3, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x80, 0x41, 0x1e, 0x81, -}; - -static const uint8_t unicode_prop_XID_Continue1_table[23] = { - 0x43, 0x79, 0x80, 0x60, 0x2d, 0x1f, 0x81, 0x60, - 0xcb, 0xc0, 0x85, 0x41, 0x95, 0x81, 0xf3, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, -}; - -static const uint8_t unicode_prop_Changes_When_Titlecased1_table[22] = { - 0x41, 0xc3, 0x08, 0x08, 0x81, 0xa4, 0x81, 0x4e, - 0xdc, 0xaa, 0x0a, 0x4e, 0x87, 0x3f, 0x3f, 0x87, - 0x8b, 0x80, 0x8e, 0x80, 0xae, 0x80, -}; - -static const uint8_t unicode_prop_Changes_When_Casefolded1_table[29] = { - 0x41, 0xef, 0x80, 0x41, 0x9e, 0x80, 0x9e, 0x80, - 0x5a, 0xe4, 0x83, 0x40, 0xb5, 0x00, 0x00, 0x00, - 0x80, 0xde, 0x06, 0x06, 0x80, 0x8a, 0x09, 0x81, - 0x89, 0x10, 0x81, 0x8d, 0x80, -}; - -static const uint8_t unicode_prop_Changes_When_NFKC_Casefolded1_table[447] = { - 0x40, 0x9f, 0x06, 0x00, 0x01, 0x00, 0x01, 0x12, - 0x10, 0x82, 0xf3, 0x80, 0x8b, 0x80, 0x40, 0x84, - 0x01, 0x01, 0x80, 0xa2, 0x01, 0x80, 0x40, 0xbb, - 0x88, 0x9e, 0x29, 0x84, 0xda, 0x08, 0x81, 0x89, - 0x80, 0xa3, 0x04, 0x02, 0x04, 0x08, 0x07, 0x80, - 0x9e, 0x80, 0xa0, 0x82, 0x9c, 0x80, 0x42, 0x28, - 0x80, 0xd7, 0x83, 0x42, 0xde, 0x87, 0xfb, 0x08, - 0x80, 0xd2, 0x01, 0x80, 0xa1, 0x11, 0x80, 0x40, - 0xfc, 0x81, 0x42, 0xd4, 0x80, 0xfe, 0x80, 0xa7, - 0x81, 0xad, 0x80, 0xb5, 0x80, 0x88, 0x03, 0x03, - 0x03, 0x80, 0x8b, 0x80, 0x88, 0x00, 0x26, 0x80, - 0x90, 0x80, 0x88, 0x03, 0x03, 0x03, 0x80, 0x8b, - 0x80, 0x41, 0x41, 0x80, 0xe1, 0x81, 0x46, 0x52, - 0x81, 0xd4, 0x84, 0x45, 0x1b, 0x10, 0x8a, 0x80, - 0x91, 0x80, 0x9b, 0x8c, 0x80, 0xa1, 0xa4, 0x40, - 0xd5, 0x83, 0x40, 0xb5, 0x00, 0x00, 0x00, 0x80, - 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, - 0xb7, 0x05, 0x00, 0x13, 0x05, 0x11, 0x02, 0x0c, - 0x11, 0x00, 0x00, 0x0c, 0x15, 0x05, 0x08, 0x8f, - 0x00, 0x20, 0x8b, 0x12, 0x2a, 0x08, 0x0b, 0x00, - 0x07, 0x82, 0x8c, 0x06, 0x92, 0x81, 0x9a, 0x80, - 0x8c, 0x8a, 0x80, 0xd6, 0x18, 0x10, 0x8a, 0x01, - 0x0c, 0x0a, 0x00, 0x10, 0x11, 0x02, 0x06, 0x05, - 0x1c, 0x85, 0x8f, 0x8f, 0x8f, 0x88, 0x80, 0x40, - 0xa1, 0x08, 0x81, 0x40, 0xf7, 0x81, 0x41, 0x34, - 0xd5, 0x99, 0x9a, 0x45, 0x20, 0x80, 0xe6, 0x82, - 0xe4, 0x80, 0x41, 0x9e, 0x81, 0x40, 0xf0, 0x80, - 0x41, 0x2e, 0x80, 0xd2, 0x80, 0x8b, 0x40, 0xd5, - 0xa9, 0x80, 0xb4, 0x00, 0x82, 0xdf, 0x09, 0x80, - 0xde, 0x80, 0xb0, 0xdd, 0x82, 0x8d, 0xdf, 0x9e, - 0x80, 0xa7, 0x87, 0xae, 0x80, 0x41, 0x7f, 0x60, - 0x72, 0x9b, 0x81, 0x40, 0xd1, 0x80, 0x40, 0x80, - 0x12, 0x81, 0x43, 0x61, 0x83, 0x88, 0x80, 0x60, - 0x4d, 0x95, 0x41, 0x0d, 0x08, 0x00, 0x81, 0x89, - 0x00, 0x00, 0x09, 0x82, 0xc3, 0x81, 0xe9, 0xc2, - 0x00, 0x97, 0x04, 0x00, 0x01, 0x01, 0x80, 0xeb, - 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81, 0xb5, 0xa7, - 0x8c, 0x82, 0x99, 0x95, 0x94, 0x81, 0x8b, 0x80, - 0x92, 0x03, 0x1a, 0x00, 0x80, 0x40, 0x86, 0x08, - 0x80, 0x9f, 0x99, 0x40, 0x83, 0x15, 0x0d, 0x0d, - 0x0a, 0x16, 0x06, 0x80, 0x88, 0x47, 0x87, 0x20, - 0xa9, 0x80, 0x88, 0x60, 0xb4, 0xe4, 0x83, 0x54, - 0xb9, 0x86, 0x8d, 0x87, 0xbf, 0x85, 0x42, 0x3e, - 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, - 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, - 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, - 0x53, 0x81, 0x41, 0x23, 0x81, 0xb1, 0x48, 0x2f, - 0xbd, 0x4d, 0x91, 0x18, 0x9a, 0x01, 0x00, 0x08, - 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00, - 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, - 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00, - 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90, - 0x42, 0x43, 0x8a, 0x84, 0x9e, 0x80, 0x9f, 0x99, - 0x82, 0xa2, 0x80, 0xee, 0x82, 0x8c, 0xab, 0x83, - 0x88, 0x31, 0x49, 0x9d, 0x89, 0x60, 0xfc, 0x05, - 0x42, 0x1d, 0x6b, 0x05, 0xe1, 0x4f, 0xff, -}; - -static const uint8_t unicode_prop_ASCII_Hex_Digit_table[5] = { - 0xaf, 0x89, 0x35, 0x99, 0x85, -}; - -static const uint8_t unicode_prop_Bidi_Control_table[10] = { - 0x46, 0x1b, 0x80, 0x59, 0xf0, 0x81, 0x99, 0x84, - 0xb6, 0x83, -}; - -static const uint8_t unicode_prop_Dash_table[55] = { - 0xac, 0x80, 0x45, 0x5b, 0x80, 0xb2, 0x80, 0x4e, - 0x40, 0x80, 0x44, 0x04, 0x80, 0x48, 0x08, 0x85, - 0xbc, 0x80, 0xa6, 0x80, 0x8e, 0x80, 0x41, 0x85, - 0x80, 0x4c, 0x03, 0x01, 0x80, 0x9e, 0x0b, 0x80, - 0x9b, 0x80, 0x41, 0xbd, 0x80, 0x92, 0x80, 0xee, - 0x80, 0x60, 0xcd, 0x8f, 0x81, 0xa4, 0x80, 0x89, - 0x80, 0x40, 0xa8, 0x80, 0x4f, 0x9e, 0x80, -}; - -static const uint8_t unicode_prop_Deprecated_table[23] = { - 0x41, 0x48, 0x80, 0x45, 0x28, 0x80, 0x49, 0x02, - 0x00, 0x80, 0x48, 0x28, 0x81, 0x48, 0xc4, 0x85, - 0x42, 0xb8, 0x81, 0x6d, 0xdc, 0xd5, 0x80, -}; - -static const uint8_t unicode_prop_Diacritic_table[399] = { - 0xdd, 0x00, 0x80, 0xc6, 0x05, 0x03, 0x01, 0x81, - 0x41, 0xf6, 0x40, 0x9e, 0x07, 0x25, 0x90, 0x0b, - 0x80, 0x88, 0x81, 0x40, 0xfc, 0x84, 0x40, 0xd0, - 0x80, 0xb6, 0x90, 0x80, 0x9a, 0x00, 0x01, 0x00, - 0x40, 0x85, 0x3b, 0x81, 0x40, 0x85, 0x0b, 0x0a, - 0x82, 0xc2, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0xa1, - 0x81, 0xfd, 0x87, 0xa8, 0x89, 0x8f, 0x9b, 0xbc, - 0x80, 0x8f, 0x02, 0x83, 0x9b, 0x80, 0xc9, 0x80, - 0x8f, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xed, 0x80, - 0x8f, 0x80, 0xae, 0x82, 0xbb, 0x80, 0x8f, 0x06, - 0x80, 0xf6, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xed, - 0x80, 0x8f, 0x80, 0xec, 0x81, 0x8f, 0x80, 0xfb, - 0x80, 0xfb, 0x28, 0x80, 0xea, 0x80, 0x8c, 0x84, - 0xca, 0x81, 0x9a, 0x00, 0x00, 0x03, 0x81, 0xc1, - 0x10, 0x81, 0xbd, 0x80, 0xef, 0x00, 0x81, 0xa7, - 0x0b, 0x84, 0x98, 0x30, 0x80, 0x89, 0x81, 0x42, - 0xc0, 0x82, 0x43, 0xb3, 0x81, 0x40, 0xb2, 0x8a, - 0x88, 0x80, 0x41, 0x5a, 0x82, 0x41, 0x38, 0x39, - 0x80, 0xaf, 0x8e, 0x81, 0x8a, 0xe7, 0x80, 0x8e, - 0x80, 0xa5, 0x88, 0xb5, 0x81, 0x40, 0x89, 0x81, - 0xbf, 0x85, 0xd1, 0x98, 0x18, 0x28, 0x0a, 0xb1, - 0xbe, 0xd8, 0x8b, 0xa4, 0x8a, 0x41, 0xbc, 0x00, - 0x82, 0x8a, 0x82, 0x8c, 0x82, 0x8c, 0x82, 0x8c, - 0x81, 0x4c, 0xef, 0x82, 0x41, 0x3c, 0x80, 0x41, - 0xf9, 0x85, 0xe8, 0x83, 0xde, 0x80, 0x60, 0x75, - 0x71, 0x80, 0x8b, 0x08, 0x80, 0x9b, 0x81, 0xd1, - 0x81, 0x8d, 0xa1, 0xe5, 0x82, 0xec, 0x81, 0x40, - 0xc9, 0x80, 0x9a, 0x91, 0xb8, 0x83, 0xa3, 0x80, - 0xde, 0x80, 0x8b, 0x80, 0xa3, 0x80, 0x40, 0x94, - 0x82, 0xc0, 0x83, 0xb2, 0x80, 0xe3, 0x84, 0x88, - 0x82, 0xff, 0x81, 0x60, 0x4f, 0x2f, 0x80, 0x43, - 0x00, 0x8f, 0x41, 0x0d, 0x00, 0x80, 0xae, 0x80, - 0xac, 0x81, 0xc2, 0x80, 0x42, 0xfb, 0x80, 0x44, - 0x9e, 0x28, 0xa9, 0x80, 0x88, 0x43, 0x29, 0x81, - 0x42, 0x3a, 0x85, 0x41, 0xd4, 0x82, 0xc5, 0x8a, - 0xb0, 0x83, 0x40, 0xbf, 0x80, 0xa8, 0x80, 0xc7, - 0x81, 0xf7, 0x81, 0xbd, 0x80, 0xcb, 0x80, 0x88, - 0x82, 0xe7, 0x81, 0x40, 0xb1, 0x81, 0xd0, 0x80, - 0x8f, 0x80, 0x97, 0x32, 0x84, 0x40, 0xcc, 0x02, - 0x80, 0xfa, 0x81, 0x40, 0xfa, 0x81, 0xfd, 0x80, - 0xf5, 0x81, 0xf2, 0x80, 0x41, 0x0c, 0x81, 0x41, - 0x01, 0x0b, 0x80, 0x40, 0x9b, 0x80, 0xd2, 0x80, - 0x91, 0x80, 0xd0, 0x80, 0x41, 0xa4, 0x80, 0x41, - 0x01, 0x00, 0x81, 0xd0, 0x80, 0x56, 0xae, 0x8e, - 0x60, 0x36, 0x99, 0x84, 0xba, 0x86, 0x44, 0x57, - 0x90, 0xcf, 0x81, 0x60, 0x3f, 0xfd, 0x18, 0x30, - 0x81, 0x5f, 0x00, 0xad, 0x81, 0x96, 0x42, 0x1f, - 0x12, 0x2f, 0x39, 0x86, 0x9d, 0x83, 0x4e, 0x81, - 0xbd, 0x40, 0xc1, 0x86, 0x41, 0x76, 0x80, 0xbc, - 0x83, 0x45, 0xdf, 0x86, 0xec, 0x10, 0x82, -}; - -static const uint8_t unicode_prop_Extender_table[92] = { - 0x40, 0xb6, 0x80, 0x42, 0x17, 0x81, 0x43, 0x6d, - 0x80, 0x41, 0xb8, 0x80, 0x43, 0x59, 0x80, 0x42, - 0xef, 0x80, 0xfe, 0x80, 0x49, 0x42, 0x80, 0xb7, - 0x80, 0x42, 0x62, 0x80, 0x41, 0x8d, 0x80, 0xc3, - 0x80, 0x53, 0x88, 0x80, 0xaa, 0x84, 0xe6, 0x81, - 0xdc, 0x82, 0x60, 0x6f, 0x15, 0x80, 0x45, 0xf5, - 0x80, 0x43, 0xc1, 0x80, 0x95, 0x80, 0x40, 0x88, - 0x80, 0xeb, 0x80, 0x94, 0x81, 0x60, 0x54, 0x7a, - 0x80, 0x48, 0x0f, 0x81, 0x4b, 0xd9, 0x80, 0x42, - 0x67, 0x82, 0x44, 0xce, 0x80, 0x60, 0x50, 0xa8, - 0x81, 0x44, 0x9b, 0x08, 0x80, 0x60, 0x71, 0x57, - 0x81, 0x48, 0x05, 0x82, -}; - -static const uint8_t unicode_prop_Hex_Digit_table[12] = { - 0xaf, 0x89, 0x35, 0x99, 0x85, 0x60, 0xfe, 0xa8, - 0x89, 0x35, 0x99, 0x85, -}; - -static const uint8_t unicode_prop_IDS_Binary_Operator_table[5] = { - 0x60, 0x2f, 0xef, 0x09, 0x87, -}; - -static const uint8_t unicode_prop_IDS_Trinary_Operator_table[4] = { - 0x60, 0x2f, 0xf1, 0x81, -}; - -static const uint8_t unicode_prop_Ideographic_table[69] = { - 0x60, 0x30, 0x05, 0x81, 0x98, 0x88, 0x8d, 0x82, - 0x43, 0xc4, 0x59, 0xbf, 0xbf, 0x60, 0x51, 0xff, - 0x60, 0x58, 0xff, 0x41, 0x6d, 0x81, 0xe9, 0x60, - 0x75, 0x09, 0x80, 0x9a, 0x57, 0xf7, 0x87, 0x44, - 0xd5, 0xa9, 0x88, 0x60, 0x24, 0x66, 0x41, 0x8b, - 0x60, 0x4d, 0x03, 0x60, 0xa6, 0xdf, 0x9f, 0x50, - 0x39, 0x85, 0x40, 0xdd, 0x81, 0x56, 0x81, 0x8d, - 0x5d, 0x30, 0x4c, 0x1e, 0x42, 0x1d, 0x45, 0xe1, - 0x53, 0x4a, 0x84, 0x50, 0x5f, -}; - -static const uint8_t unicode_prop_Join_Control_table[4] = { - 0x60, 0x20, 0x0b, 0x81, -}; - -static const uint8_t unicode_prop_Logical_Order_Exception_table[15] = { - 0x4e, 0x3f, 0x84, 0xfa, 0x84, 0x4a, 0xef, 0x11, - 0x80, 0x60, 0x90, 0xf9, 0x09, 0x00, 0x81, -}; - -static const uint8_t unicode_prop_Noncharacter_Code_Point_table[71] = { - 0x60, 0xfd, 0xcf, 0x9f, 0x42, 0x0d, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, - 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, -}; - -static const uint8_t unicode_prop_Pattern_Syntax_table[58] = { - 0xa0, 0x8e, 0x89, 0x86, 0x99, 0x18, 0x80, 0x99, - 0x83, 0xa1, 0x30, 0x00, 0x08, 0x00, 0x0b, 0x03, - 0x02, 0x80, 0x96, 0x80, 0x9e, 0x80, 0x5f, 0x17, - 0x97, 0x87, 0x8e, 0x81, 0x92, 0x80, 0x89, 0x41, - 0x30, 0x42, 0xcf, 0x40, 0x9f, 0x42, 0x75, 0x9d, - 0x44, 0x6b, 0x41, 0xff, 0xff, 0x41, 0x80, 0x13, - 0x98, 0x8e, 0x80, 0x60, 0xcd, 0x0c, 0x81, 0x41, - 0x04, 0x81, -}; - -static const uint8_t unicode_prop_Pattern_White_Space_table[11] = { - 0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x5f, 0x87, - 0x81, 0x97, 0x81, -}; - -static const uint8_t unicode_prop_Quotation_Mark_table[31] = { - 0xa1, 0x03, 0x80, 0x40, 0x82, 0x80, 0x8e, 0x80, - 0x5f, 0x5b, 0x87, 0x98, 0x81, 0x4e, 0x06, 0x80, - 0x41, 0xc8, 0x83, 0x8c, 0x82, 0x60, 0xce, 0x20, - 0x83, 0x40, 0xbc, 0x03, 0x80, 0xd9, 0x81, -}; - -static const uint8_t unicode_prop_Radical_table[9] = { - 0x60, 0x2e, 0x7f, 0x99, 0x80, 0xd8, 0x8b, 0x40, - 0xd5, -}; - -static const uint8_t unicode_prop_Regional_Indicator_table[4] = { - 0x61, 0xf1, 0xe5, 0x99, -}; - -static const uint8_t unicode_prop_Sentence_Terminal_table[196] = { - 0xa0, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0x45, 0x48, - 0x80, 0x40, 0x92, 0x82, 0x40, 0xb3, 0x80, 0xaa, - 0x82, 0x40, 0xf5, 0x80, 0xbc, 0x00, 0x02, 0x81, - 0x41, 0x24, 0x81, 0x46, 0xe3, 0x81, 0x43, 0x15, - 0x03, 0x81, 0x43, 0x04, 0x80, 0x40, 0xc5, 0x81, - 0x40, 0xcb, 0x04, 0x80, 0x41, 0x39, 0x81, 0x41, - 0x61, 0x83, 0x40, 0xad, 0x09, 0x81, 0x9c, 0x81, - 0x40, 0xbb, 0x81, 0xc0, 0x81, 0x43, 0xbb, 0x81, - 0x88, 0x82, 0x4d, 0xe3, 0x80, 0x8c, 0x80, 0x95, - 0x81, 0x41, 0xac, 0x80, 0x60, 0x74, 0xfb, 0x80, - 0x41, 0x0d, 0x81, 0x40, 0xe2, 0x02, 0x80, 0x41, - 0x7d, 0x81, 0xd5, 0x81, 0xde, 0x80, 0x40, 0x97, - 0x81, 0x40, 0x92, 0x82, 0x40, 0x8f, 0x81, 0x40, - 0xf8, 0x80, 0x60, 0x52, 0x65, 0x02, 0x81, 0x40, - 0xa8, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0xc0, 0x80, - 0x4a, 0xf3, 0x81, 0x44, 0xfc, 0x84, 0xab, 0x83, - 0x40, 0xbc, 0x81, 0xf4, 0x83, 0xfe, 0x82, 0x40, - 0x80, 0x0d, 0x80, 0x8f, 0x81, 0xd7, 0x08, 0x81, - 0xeb, 0x80, 0x41, 0xa0, 0x81, 0x41, 0x74, 0x0c, - 0x8e, 0xe8, 0x81, 0x40, 0xf8, 0x82, 0x42, 0x04, - 0x00, 0x80, 0x40, 0xfa, 0x81, 0xd6, 0x81, 0x41, - 0xa3, 0x81, 0x42, 0xb3, 0x81, 0xc9, 0x81, 0x60, - 0x4b, 0x28, 0x81, 0x40, 0x84, 0x80, 0xc0, 0x81, - 0x8a, 0x80, 0x43, 0x52, 0x80, 0x60, 0x4e, 0x05, - 0x80, 0x5d, 0xe7, 0x80, -}; - -static const uint8_t unicode_prop_Soft_Dotted_table[79] = { - 0xe8, 0x81, 0x40, 0xc3, 0x80, 0x41, 0x18, 0x80, - 0x9d, 0x80, 0xb3, 0x80, 0x93, 0x80, 0x41, 0x3f, - 0x80, 0xe1, 0x00, 0x80, 0x59, 0x08, 0x80, 0xb2, - 0x80, 0x8c, 0x02, 0x80, 0x40, 0x83, 0x80, 0x40, - 0x9c, 0x80, 0x41, 0xa4, 0x80, 0x40, 0xd5, 0x81, - 0x4b, 0x31, 0x80, 0x61, 0xa7, 0xa4, 0x81, 0xb1, - 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, - 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, - 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0x48, - 0x85, 0x80, 0x41, 0x30, 0x81, 0x99, 0x80, -}; - -static const uint8_t unicode_prop_Terminal_Punctuation_table[248] = { - 0xa0, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80, - 0x43, 0x3d, 0x07, 0x80, 0x42, 0x00, 0x80, 0xb8, - 0x80, 0xc7, 0x80, 0x8d, 0x00, 0x82, 0x40, 0xb3, - 0x80, 0xaa, 0x8a, 0x00, 0x40, 0xea, 0x81, 0xb5, - 0x8e, 0x9e, 0x80, 0x41, 0x04, 0x81, 0x44, 0xf3, - 0x81, 0x40, 0xab, 0x03, 0x85, 0x41, 0x36, 0x81, - 0x43, 0x14, 0x87, 0x43, 0x04, 0x80, 0xfb, 0x82, - 0xc6, 0x81, 0x40, 0x9c, 0x12, 0x80, 0xa6, 0x19, - 0x81, 0x41, 0x39, 0x81, 0x41, 0x61, 0x83, 0x40, - 0xad, 0x08, 0x82, 0x9c, 0x81, 0x40, 0xbb, 0x84, - 0xbd, 0x81, 0x43, 0xbb, 0x81, 0x88, 0x82, 0x4d, - 0xe3, 0x80, 0x8c, 0x03, 0x80, 0x89, 0x00, 0x0a, - 0x81, 0x41, 0xab, 0x81, 0x60, 0x74, 0xfa, 0x81, - 0x41, 0x0c, 0x82, 0x40, 0xe2, 0x84, 0x41, 0x7d, - 0x81, 0xd5, 0x81, 0xde, 0x80, 0x40, 0x96, 0x82, - 0x40, 0x92, 0x82, 0xfe, 0x80, 0x8f, 0x81, 0x40, - 0xf8, 0x80, 0x60, 0x52, 0x63, 0x10, 0x83, 0x40, - 0xa8, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80, - 0xc0, 0x01, 0x80, 0x44, 0x39, 0x80, 0xaf, 0x80, - 0x44, 0x85, 0x80, 0x40, 0xc6, 0x80, 0x41, 0x35, - 0x81, 0x40, 0x97, 0x85, 0xc3, 0x85, 0xd8, 0x83, - 0x43, 0xb7, 0x84, 0xab, 0x83, 0x40, 0xbc, 0x86, - 0xef, 0x83, 0xfe, 0x82, 0x40, 0x80, 0x0d, 0x80, - 0x8f, 0x81, 0xd7, 0x84, 0xeb, 0x80, 0x41, 0xa0, - 0x82, 0x8b, 0x81, 0x41, 0x65, 0x1a, 0x8e, 0xe8, - 0x81, 0x40, 0xf8, 0x82, 0x42, 0x04, 0x00, 0x80, - 0x40, 0xfa, 0x81, 0xd6, 0x0b, 0x81, 0x41, 0x9d, - 0x82, 0xac, 0x80, 0x42, 0x84, 0x81, 0xc9, 0x81, - 0x45, 0x2a, 0x84, 0x60, 0x45, 0xf8, 0x81, 0x40, - 0x84, 0x80, 0xc0, 0x82, 0x89, 0x80, 0x43, 0x51, - 0x81, 0x60, 0x4e, 0x05, 0x80, 0x5d, 0xe6, 0x83, -}; - -static const uint8_t unicode_prop_Unified_Ideograph_table[45] = { - 0x60, 0x33, 0xff, 0x59, 0xbf, 0xbf, 0x60, 0x51, - 0xff, 0x60, 0x5a, 0x0d, 0x08, 0x00, 0x81, 0x89, - 0x00, 0x00, 0x09, 0x82, 0x61, 0x05, 0xd5, 0x60, - 0xa6, 0xdf, 0x9f, 0x50, 0x39, 0x85, 0x40, 0xdd, - 0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30, 0x54, 0x1e, - 0x53, 0x4a, 0x84, 0x50, 0x5f, -}; - -static const uint8_t unicode_prop_Variation_Selector_table[13] = { - 0x58, 0x0a, 0x10, 0x80, 0x60, 0xe5, 0xef, 0x8f, - 0x6d, 0x02, 0xef, 0x40, 0xef, -}; - -static const uint8_t unicode_prop_White_Space_table[22] = { - 0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x99, 0x80, - 0x55, 0xde, 0x80, 0x49, 0x7e, 0x8a, 0x9c, 0x0c, - 0x80, 0xae, 0x80, 0x4f, 0x9f, 0x80, -}; - -static const uint8_t unicode_prop_Bidi_Mirrored_table[173] = { - 0xa7, 0x81, 0x91, 0x00, 0x80, 0x9b, 0x00, 0x80, - 0x9c, 0x00, 0x80, 0xac, 0x80, 0x8e, 0x80, 0x4e, - 0x7d, 0x83, 0x47, 0x5c, 0x81, 0x49, 0x9b, 0x81, - 0x89, 0x81, 0xb5, 0x81, 0x8d, 0x81, 0x40, 0xb0, - 0x80, 0x40, 0xbf, 0x1a, 0x2a, 0x02, 0x0a, 0x18, - 0x18, 0x00, 0x03, 0x88, 0x20, 0x80, 0x91, 0x23, - 0x88, 0x08, 0x00, 0x39, 0x9e, 0x0b, 0x20, 0x88, - 0x09, 0x92, 0x21, 0x88, 0x21, 0x0b, 0x97, 0x81, - 0x8f, 0x3b, 0x93, 0x0e, 0x81, 0x44, 0x3c, 0x8d, - 0xc9, 0x01, 0x18, 0x08, 0x14, 0x1c, 0x12, 0x8d, - 0x41, 0x92, 0x95, 0x0d, 0x80, 0x8d, 0x38, 0x35, - 0x10, 0x1c, 0x01, 0x0c, 0x18, 0x02, 0x09, 0x89, - 0x29, 0x81, 0x8b, 0x92, 0x03, 0x08, 0x00, 0x08, - 0x03, 0x21, 0x2a, 0x97, 0x81, 0x8a, 0x0b, 0x18, - 0x09, 0x0b, 0xaa, 0x0f, 0x80, 0xa7, 0x20, 0x00, - 0x14, 0x22, 0x18, 0x14, 0x00, 0x40, 0xff, 0x80, - 0x42, 0x02, 0x1a, 0x08, 0x81, 0x8d, 0x09, 0x89, - 0xaa, 0x87, 0x41, 0xaa, 0x89, 0x0f, 0x60, 0xce, - 0x3c, 0x2c, 0x81, 0x40, 0xa1, 0x81, 0x91, 0x00, - 0x80, 0x9b, 0x00, 0x80, 0x9c, 0x00, 0x00, 0x08, - 0x81, 0x60, 0xd7, 0x76, 0x80, 0xb8, 0x80, 0xb8, - 0x80, 0xb8, 0x80, 0xb8, 0x80, -}; - -static const uint8_t unicode_prop_Emoji_table[239] = { - 0xa2, 0x05, 0x04, 0x89, 0xee, 0x03, 0x80, 0x5f, - 0x8c, 0x80, 0x8b, 0x80, 0x40, 0xd7, 0x80, 0x95, - 0x80, 0xd9, 0x85, 0x8e, 0x81, 0x41, 0x6e, 0x81, - 0x8b, 0x80, 0x40, 0xa5, 0x80, 0x98, 0x8a, 0x1a, - 0x40, 0xc6, 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80, - 0x88, 0x80, 0xb9, 0x18, 0x84, 0x88, 0x01, 0x01, - 0x09, 0x03, 0x01, 0x00, 0x09, 0x02, 0x02, 0x0f, - 0x14, 0x00, 0x04, 0x8b, 0x8a, 0x09, 0x00, 0x08, - 0x80, 0x91, 0x01, 0x81, 0x91, 0x28, 0x00, 0x0a, - 0x0c, 0x01, 0x0b, 0x81, 0x8a, 0x0c, 0x09, 0x04, - 0x08, 0x00, 0x81, 0x93, 0x0c, 0x28, 0x19, 0x03, - 0x01, 0x01, 0x28, 0x01, 0x00, 0x00, 0x05, 0x02, - 0x05, 0x80, 0x89, 0x81, 0x8e, 0x01, 0x03, 0x00, - 0x03, 0x10, 0x80, 0x8a, 0x81, 0xaf, 0x82, 0x88, - 0x80, 0x8d, 0x80, 0x8d, 0x80, 0x41, 0x73, 0x81, - 0x41, 0xce, 0x82, 0x92, 0x81, 0xb2, 0x03, 0x80, - 0x44, 0xd9, 0x80, 0x8b, 0x80, 0x42, 0x58, 0x00, - 0x80, 0x61, 0xbd, 0x69, 0x80, 0x40, 0xc9, 0x80, - 0x40, 0x9f, 0x81, 0x8b, 0x81, 0x8d, 0x01, 0x89, - 0xca, 0x99, 0x01, 0x96, 0x80, 0x93, 0x01, 0x88, - 0x94, 0x81, 0x40, 0xad, 0xa1, 0x81, 0xef, 0x09, - 0x02, 0x81, 0xd2, 0x0a, 0x80, 0x41, 0x06, 0x80, - 0xbe, 0x8a, 0x28, 0x97, 0x31, 0x0f, 0x8b, 0x01, - 0x19, 0x03, 0x81, 0x8c, 0x09, 0x07, 0x81, 0x88, - 0x04, 0x82, 0x8b, 0x17, 0x11, 0x00, 0x03, 0x05, - 0x02, 0x05, 0xd5, 0xaf, 0xc5, 0x27, 0x0a, 0x83, - 0x89, 0x10, 0x01, 0x10, 0x81, 0x89, 0x40, 0xe2, - 0x8b, 0x18, 0x41, 0x1a, 0xae, 0x80, 0x89, 0x80, - 0x40, 0xb8, 0xef, 0x8c, 0x82, 0x88, 0x86, 0xad, - 0x06, 0x87, 0x8d, 0x83, 0x88, 0x86, 0x88, -}; - -static const uint8_t unicode_prop_Emoji_Component_table[28] = { - 0xa2, 0x05, 0x04, 0x89, 0x5f, 0xd2, 0x80, 0x40, - 0xd4, 0x80, 0x60, 0xdd, 0x2a, 0x80, 0x60, 0xf3, - 0xd5, 0x99, 0x41, 0xfa, 0x84, 0x45, 0xaf, 0x83, - 0x6c, 0x06, 0x6b, 0xdf, -}; - -static const uint8_t unicode_prop_Emoji_Modifier_table[4] = { - 0x61, 0xf3, 0xfa, 0x84, -}; - -static const uint8_t unicode_prop_Emoji_Modifier_Base_table[71] = { - 0x60, 0x26, 0x1c, 0x80, 0x40, 0xda, 0x80, 0x8f, - 0x83, 0x61, 0xcc, 0x76, 0x80, 0xbb, 0x11, 0x01, - 0x82, 0xf4, 0x09, 0x8a, 0x94, 0x92, 0x10, 0x1a, - 0x02, 0x30, 0x00, 0x97, 0x80, 0x40, 0xc8, 0x0b, - 0x80, 0x94, 0x03, 0x81, 0x40, 0xad, 0x12, 0x84, - 0xd2, 0x80, 0x8f, 0x82, 0x88, 0x80, 0x8a, 0x80, - 0x42, 0x3e, 0x01, 0x07, 0x3d, 0x80, 0x88, 0x89, - 0x0a, 0xb7, 0x80, 0xbc, 0x08, 0x08, 0x80, 0x90, - 0x10, 0x8c, 0x40, 0xe4, 0x82, 0xa9, 0x88, -}; - -static const uint8_t unicode_prop_Emoji_Presentation_table[145] = { - 0x60, 0x23, 0x19, 0x81, 0x40, 0xcc, 0x1a, 0x01, - 0x80, 0x42, 0x08, 0x81, 0x94, 0x81, 0xb1, 0x8b, - 0xaa, 0x80, 0x92, 0x80, 0x8c, 0x07, 0x81, 0x90, - 0x0c, 0x0f, 0x04, 0x80, 0x94, 0x06, 0x08, 0x03, - 0x01, 0x06, 0x03, 0x81, 0x9b, 0x80, 0xa2, 0x00, - 0x03, 0x10, 0x80, 0xbc, 0x82, 0x97, 0x80, 0x8d, - 0x80, 0x43, 0x5a, 0x81, 0xb2, 0x03, 0x80, 0x61, - 0xc4, 0xad, 0x80, 0x40, 0xc9, 0x80, 0x40, 0xbd, - 0x01, 0x89, 0xca, 0x99, 0x00, 0x97, 0x80, 0x93, - 0x01, 0x20, 0x82, 0x94, 0x81, 0x40, 0xad, 0xa0, - 0x8b, 0x88, 0x80, 0xc5, 0x80, 0x95, 0x8b, 0xaa, - 0x1c, 0x8b, 0x90, 0x10, 0x82, 0xc6, 0x00, 0x80, - 0x40, 0xba, 0x81, 0xbe, 0x8c, 0x18, 0x97, 0x91, - 0x80, 0x99, 0x81, 0x8c, 0x80, 0xd5, 0xd4, 0xaf, - 0xc5, 0x28, 0x12, 0x0a, 0x1b, 0x8a, 0x0e, 0x88, - 0x40, 0xe2, 0x8b, 0x18, 0x41, 0x1a, 0xae, 0x80, - 0x89, 0x80, 0x40, 0xb8, 0xef, 0x8c, 0x82, 0x88, - 0x86, 0xad, 0x06, 0x87, 0x8d, 0x83, 0x88, 0x86, - 0x88, -}; - -static const uint8_t unicode_prop_Extended_Pictographic_table[156] = { - 0x40, 0xa8, 0x03, 0x80, 0x5f, 0x8c, 0x80, 0x8b, - 0x80, 0x40, 0xd7, 0x80, 0x95, 0x80, 0xd9, 0x85, - 0x8e, 0x81, 0x41, 0x6e, 0x81, 0x8b, 0x80, 0xde, - 0x80, 0xc5, 0x80, 0x98, 0x8a, 0x1a, 0x40, 0xc6, - 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80, 0x88, 0x80, - 0xb9, 0x18, 0x28, 0x8b, 0x80, 0xf1, 0x89, 0xf5, - 0x81, 0x8a, 0x00, 0x00, 0x28, 0x10, 0x28, 0x89, - 0x81, 0x8e, 0x01, 0x03, 0x00, 0x03, 0x10, 0x80, - 0x8a, 0x84, 0xac, 0x82, 0x88, 0x80, 0x8d, 0x80, - 0x8d, 0x80, 0x41, 0x73, 0x81, 0x41, 0xce, 0x82, - 0x92, 0x81, 0xb2, 0x03, 0x80, 0x44, 0xd9, 0x80, - 0x8b, 0x80, 0x42, 0x58, 0x00, 0x80, 0x61, 0xbd, - 0x65, 0x40, 0xff, 0x8c, 0x82, 0x9e, 0x80, 0xbb, - 0x85, 0x8b, 0x81, 0x8d, 0x01, 0x89, 0x91, 0xb8, - 0x9a, 0x8e, 0x89, 0x80, 0x93, 0x01, 0x88, 0x03, - 0x88, 0x41, 0xb1, 0x84, 0x41, 0x3d, 0x87, 0x41, - 0x09, 0xaf, 0xff, 0xf3, 0x8b, 0xd4, 0xaa, 0x8b, - 0x83, 0xb7, 0x87, 0x89, 0x85, 0xa7, 0x87, 0x9d, - 0xd1, 0x8b, 0xae, 0x80, 0x89, 0x80, 0x41, 0xb8, - 0x40, 0xff, 0x43, 0xfd, -}; - -static const uint8_t unicode_prop_Default_Ignorable_Code_Point_table[51] = { - 0x40, 0xac, 0x80, 0x42, 0xa0, 0x80, 0x42, 0xcb, - 0x80, 0x4b, 0x41, 0x81, 0x46, 0x52, 0x81, 0xd4, - 0x84, 0x47, 0xfa, 0x84, 0x99, 0x84, 0xb0, 0x8f, - 0x50, 0xf3, 0x80, 0x60, 0xcc, 0x9a, 0x8f, 0x40, - 0xee, 0x80, 0x40, 0x9f, 0x80, 0xce, 0x88, 0x60, - 0xbc, 0xa6, 0x83, 0x54, 0xce, 0x87, 0x6c, 0x2e, - 0x84, 0x4f, 0xff, -}; - -typedef enum { - UNICODE_PROP_Hyphen, - UNICODE_PROP_Other_Math, - UNICODE_PROP_Other_Alphabetic, - UNICODE_PROP_Other_Lowercase, - UNICODE_PROP_Other_Uppercase, - UNICODE_PROP_Other_Grapheme_Extend, - UNICODE_PROP_Other_Default_Ignorable_Code_Point, - UNICODE_PROP_Other_ID_Start, - UNICODE_PROP_Other_ID_Continue, - UNICODE_PROP_Prepended_Concatenation_Mark, - UNICODE_PROP_ID_Continue1, - UNICODE_PROP_XID_Start1, - UNICODE_PROP_XID_Continue1, - UNICODE_PROP_Changes_When_Titlecased1, - UNICODE_PROP_Changes_When_Casefolded1, - UNICODE_PROP_Changes_When_NFKC_Casefolded1, - UNICODE_PROP_ASCII_Hex_Digit, - UNICODE_PROP_Bidi_Control, - UNICODE_PROP_Dash, - UNICODE_PROP_Deprecated, - UNICODE_PROP_Diacritic, - UNICODE_PROP_Extender, - UNICODE_PROP_Hex_Digit, - UNICODE_PROP_IDS_Binary_Operator, - UNICODE_PROP_IDS_Trinary_Operator, - UNICODE_PROP_Ideographic, - UNICODE_PROP_Join_Control, - UNICODE_PROP_Logical_Order_Exception, - UNICODE_PROP_Noncharacter_Code_Point, - UNICODE_PROP_Pattern_Syntax, - UNICODE_PROP_Pattern_White_Space, - UNICODE_PROP_Quotation_Mark, - UNICODE_PROP_Radical, - UNICODE_PROP_Regional_Indicator, - UNICODE_PROP_Sentence_Terminal, - UNICODE_PROP_Soft_Dotted, - UNICODE_PROP_Terminal_Punctuation, - UNICODE_PROP_Unified_Ideograph, - UNICODE_PROP_Variation_Selector, - UNICODE_PROP_White_Space, - UNICODE_PROP_Bidi_Mirrored, - UNICODE_PROP_Emoji, - UNICODE_PROP_Emoji_Component, - UNICODE_PROP_Emoji_Modifier, - UNICODE_PROP_Emoji_Modifier_Base, - UNICODE_PROP_Emoji_Presentation, - UNICODE_PROP_Extended_Pictographic, - UNICODE_PROP_Default_Ignorable_Code_Point, - UNICODE_PROP_ID_Start, - UNICODE_PROP_Case_Ignorable, - UNICODE_PROP_ASCII, - UNICODE_PROP_Alphabetic, - UNICODE_PROP_Any, - UNICODE_PROP_Assigned, - UNICODE_PROP_Cased, - UNICODE_PROP_Changes_When_Casefolded, - UNICODE_PROP_Changes_When_Casemapped, - UNICODE_PROP_Changes_When_Lowercased, - UNICODE_PROP_Changes_When_NFKC_Casefolded, - UNICODE_PROP_Changes_When_Titlecased, - UNICODE_PROP_Changes_When_Uppercased, - UNICODE_PROP_Grapheme_Base, - UNICODE_PROP_Grapheme_Extend, - UNICODE_PROP_ID_Continue, - UNICODE_PROP_Lowercase, - UNICODE_PROP_Math, - UNICODE_PROP_Uppercase, - UNICODE_PROP_XID_Continue, - UNICODE_PROP_XID_Start, - UNICODE_PROP_Cased1, - UNICODE_PROP_COUNT, -} UnicodePropertyEnum; - -static const char unicode_prop_name_table[] = - "ASCII_Hex_Digit,AHex" "\0" - "Bidi_Control,Bidi_C" "\0" - "Dash" "\0" - "Deprecated,Dep" "\0" - "Diacritic,Dia" "\0" - "Extender,Ext" "\0" - "Hex_Digit,Hex" "\0" - "IDS_Binary_Operator,IDSB" "\0" - "IDS_Trinary_Operator,IDST" "\0" - "Ideographic,Ideo" "\0" - "Join_Control,Join_C" "\0" - "Logical_Order_Exception,LOE" "\0" - "Noncharacter_Code_Point,NChar" "\0" - "Pattern_Syntax,Pat_Syn" "\0" - "Pattern_White_Space,Pat_WS" "\0" - "Quotation_Mark,QMark" "\0" - "Radical" "\0" - "Regional_Indicator,RI" "\0" - "Sentence_Terminal,STerm" "\0" - "Soft_Dotted,SD" "\0" - "Terminal_Punctuation,Term" "\0" - "Unified_Ideograph,UIdeo" "\0" - "Variation_Selector,VS" "\0" - "White_Space,space" "\0" - "Bidi_Mirrored,Bidi_M" "\0" - "Emoji" "\0" - "Emoji_Component,EComp" "\0" - "Emoji_Modifier,EMod" "\0" - "Emoji_Modifier_Base,EBase" "\0" - "Emoji_Presentation,EPres" "\0" - "Extended_Pictographic,ExtPict" "\0" - "Default_Ignorable_Code_Point,DI" "\0" - "ID_Start,IDS" "\0" - "Case_Ignorable,CI" "\0" - "ASCII" "\0" - "Alphabetic,Alpha" "\0" - "Any" "\0" - "Assigned" "\0" - "Cased" "\0" - "Changes_When_Casefolded,CWCF" "\0" - "Changes_When_Casemapped,CWCM" "\0" - "Changes_When_Lowercased,CWL" "\0" - "Changes_When_NFKC_Casefolded,CWKCF" "\0" - "Changes_When_Titlecased,CWT" "\0" - "Changes_When_Uppercased,CWU" "\0" - "Grapheme_Base,Gr_Base" "\0" - "Grapheme_Extend,Gr_Ext" "\0" - "ID_Continue,IDC" "\0" - "Lowercase,Lower" "\0" - "Math" "\0" - "Uppercase,Upper" "\0" - "XID_Continue,XIDC" "\0" - "XID_Start,XIDS" "\0" -; - -static const uint8_t * const unicode_prop_table[] = { - unicode_prop_Hyphen_table, - unicode_prop_Other_Math_table, - unicode_prop_Other_Alphabetic_table, - unicode_prop_Other_Lowercase_table, - unicode_prop_Other_Uppercase_table, - unicode_prop_Other_Grapheme_Extend_table, - unicode_prop_Other_Default_Ignorable_Code_Point_table, - unicode_prop_Other_ID_Start_table, - unicode_prop_Other_ID_Continue_table, - unicode_prop_Prepended_Concatenation_Mark_table, - unicode_prop_ID_Continue1_table, - unicode_prop_XID_Start1_table, - unicode_prop_XID_Continue1_table, - unicode_prop_Changes_When_Titlecased1_table, - unicode_prop_Changes_When_Casefolded1_table, - unicode_prop_Changes_When_NFKC_Casefolded1_table, - unicode_prop_ASCII_Hex_Digit_table, - unicode_prop_Bidi_Control_table, - unicode_prop_Dash_table, - unicode_prop_Deprecated_table, - unicode_prop_Diacritic_table, - unicode_prop_Extender_table, - unicode_prop_Hex_Digit_table, - unicode_prop_IDS_Binary_Operator_table, - unicode_prop_IDS_Trinary_Operator_table, - unicode_prop_Ideographic_table, - unicode_prop_Join_Control_table, - unicode_prop_Logical_Order_Exception_table, - unicode_prop_Noncharacter_Code_Point_table, - unicode_prop_Pattern_Syntax_table, - unicode_prop_Pattern_White_Space_table, - unicode_prop_Quotation_Mark_table, - unicode_prop_Radical_table, - unicode_prop_Regional_Indicator_table, - unicode_prop_Sentence_Terminal_table, - unicode_prop_Soft_Dotted_table, - unicode_prop_Terminal_Punctuation_table, - unicode_prop_Unified_Ideograph_table, - unicode_prop_Variation_Selector_table, - unicode_prop_White_Space_table, - unicode_prop_Bidi_Mirrored_table, - unicode_prop_Emoji_table, - unicode_prop_Emoji_Component_table, - unicode_prop_Emoji_Modifier_table, - unicode_prop_Emoji_Modifier_Base_table, - unicode_prop_Emoji_Presentation_table, - unicode_prop_Extended_Pictographic_table, - unicode_prop_Default_Ignorable_Code_Point_table, - unicode_prop_ID_Start_table, - unicode_prop_Case_Ignorable_table, -}; - -static const uint16_t unicode_prop_len_table[] = { - countof(unicode_prop_Hyphen_table), - countof(unicode_prop_Other_Math_table), - countof(unicode_prop_Other_Alphabetic_table), - countof(unicode_prop_Other_Lowercase_table), - countof(unicode_prop_Other_Uppercase_table), - countof(unicode_prop_Other_Grapheme_Extend_table), - countof(unicode_prop_Other_Default_Ignorable_Code_Point_table), - countof(unicode_prop_Other_ID_Start_table), - countof(unicode_prop_Other_ID_Continue_table), - countof(unicode_prop_Prepended_Concatenation_Mark_table), - countof(unicode_prop_ID_Continue1_table), - countof(unicode_prop_XID_Start1_table), - countof(unicode_prop_XID_Continue1_table), - countof(unicode_prop_Changes_When_Titlecased1_table), - countof(unicode_prop_Changes_When_Casefolded1_table), - countof(unicode_prop_Changes_When_NFKC_Casefolded1_table), - countof(unicode_prop_ASCII_Hex_Digit_table), - countof(unicode_prop_Bidi_Control_table), - countof(unicode_prop_Dash_table), - countof(unicode_prop_Deprecated_table), - countof(unicode_prop_Diacritic_table), - countof(unicode_prop_Extender_table), - countof(unicode_prop_Hex_Digit_table), - countof(unicode_prop_IDS_Binary_Operator_table), - countof(unicode_prop_IDS_Trinary_Operator_table), - countof(unicode_prop_Ideographic_table), - countof(unicode_prop_Join_Control_table), - countof(unicode_prop_Logical_Order_Exception_table), - countof(unicode_prop_Noncharacter_Code_Point_table), - countof(unicode_prop_Pattern_Syntax_table), - countof(unicode_prop_Pattern_White_Space_table), - countof(unicode_prop_Quotation_Mark_table), - countof(unicode_prop_Radical_table), - countof(unicode_prop_Regional_Indicator_table), - countof(unicode_prop_Sentence_Terminal_table), - countof(unicode_prop_Soft_Dotted_table), - countof(unicode_prop_Terminal_Punctuation_table), - countof(unicode_prop_Unified_Ideograph_table), - countof(unicode_prop_Variation_Selector_table), - countof(unicode_prop_White_Space_table), - countof(unicode_prop_Bidi_Mirrored_table), - countof(unicode_prop_Emoji_table), - countof(unicode_prop_Emoji_Component_table), - countof(unicode_prop_Emoji_Modifier_table), - countof(unicode_prop_Emoji_Modifier_Base_table), - countof(unicode_prop_Emoji_Presentation_table), - countof(unicode_prop_Extended_Pictographic_table), - countof(unicode_prop_Default_Ignorable_Code_Point_table), - countof(unicode_prop_ID_Start_table), - countof(unicode_prop_Case_Ignorable_table), -}; - -#endif /* CONFIG_ALL_UNICODE */ diff --git a/deps/quickjs/libunicode.c b/deps/quickjs/libunicode.c deleted file mode 100644 index 0712a6c0..00000000 --- a/deps/quickjs/libunicode.c +++ /dev/null @@ -1,1788 +0,0 @@ -/* - * Unicode utilities - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include - -#include "cutils.h" -#include "libunicode.h" -#include "libunicode-table.h" - -enum { - RUN_TYPE_U, - RUN_TYPE_L, - RUN_TYPE_UF, - RUN_TYPE_LF, - RUN_TYPE_UL, - RUN_TYPE_LSU, - RUN_TYPE_U2L_399_EXT2, - RUN_TYPE_UF_D20, - RUN_TYPE_UF_D1_EXT, - RUN_TYPE_U_EXT, - RUN_TYPE_LF_EXT, - RUN_TYPE_UF_EXT2, - RUN_TYPE_LF_EXT2, - RUN_TYPE_UF_EXT3, -}; - -static int lre_case_conv1(uint32_t c, int conv_type) -{ - uint32_t res[LRE_CC_RES_LEN_MAX]; - lre_case_conv(res, c, conv_type); - return res[0]; -} - -/* case conversion using the table entry 'idx' with value 'v' */ -static int lre_case_conv_entry(uint32_t *res, uint32_t c, int conv_type, uint32_t idx, uint32_t v) -{ - uint32_t code, data, type, a, is_lower; - is_lower = (conv_type != 0); - type = (v >> (32 - 17 - 7 - 4)) & 0xf; - data = ((v & 0xf) << 8) | case_conv_table2[idx]; - code = v >> (32 - 17); - switch(type) { - case RUN_TYPE_U: - case RUN_TYPE_L: - case RUN_TYPE_UF: - case RUN_TYPE_LF: - if (conv_type == (type & 1) || - (type >= RUN_TYPE_UF && conv_type == 2)) { - c = c - code + (case_conv_table1[data] >> (32 - 17)); - } - break; - case RUN_TYPE_UL: - a = c - code; - if ((a & 1) != (1 - is_lower)) - break; - c = (a ^ 1) + code; - break; - case RUN_TYPE_LSU: - a = c - code; - if (a == 1) { - c += 2 * is_lower - 1; - } else if (a == (1 - is_lower) * 2) { - c += (2 * is_lower - 1) * 2; - } - break; - case RUN_TYPE_U2L_399_EXT2: - if (!is_lower) { - res[0] = c - code + case_conv_ext[data >> 6]; - res[1] = 0x399; - return 2; - } else { - c = c - code + case_conv_ext[data & 0x3f]; - } - break; - case RUN_TYPE_UF_D20: - if (conv_type == 1) - break; - c = data + (conv_type == 2) * 0x20; - break; - case RUN_TYPE_UF_D1_EXT: - if (conv_type == 1) - break; - c = case_conv_ext[data] + (conv_type == 2); - break; - case RUN_TYPE_U_EXT: - case RUN_TYPE_LF_EXT: - if (is_lower != (type - RUN_TYPE_U_EXT)) - break; - c = case_conv_ext[data]; - break; - case RUN_TYPE_LF_EXT2: - if (!is_lower) - break; - res[0] = c - code + case_conv_ext[data >> 6]; - res[1] = case_conv_ext[data & 0x3f]; - return 2; - case RUN_TYPE_UF_EXT2: - if (conv_type == 1) - break; - res[0] = c - code + case_conv_ext[data >> 6]; - res[1] = case_conv_ext[data & 0x3f]; - if (conv_type == 2) { - /* convert to lower */ - res[0] = lre_case_conv1(res[0], 1); - res[1] = lre_case_conv1(res[1], 1); - } - return 2; - default: - case RUN_TYPE_UF_EXT3: - if (conv_type == 1) - break; - res[0] = case_conv_ext[data >> 8]; - res[1] = case_conv_ext[(data >> 4) & 0xf]; - res[2] = case_conv_ext[data & 0xf]; - if (conv_type == 2) { - /* convert to lower */ - res[0] = lre_case_conv1(res[0], 1); - res[1] = lre_case_conv1(res[1], 1); - res[2] = lre_case_conv1(res[2], 1); - } - return 3; - } - res[0] = c; - return 1; -} - -/* conv_type: - 0 = to upper - 1 = to lower - 2 = case folding (= to lower with modifications) -*/ -int lre_case_conv(uint32_t *res, uint32_t c, int conv_type) -{ - if (c < 128) { - if (conv_type) { - if (c >= 'A' && c <= 'Z') { - c = c - 'A' + 'a'; - } - } else { - if (c >= 'a' && c <= 'z') { - c = c - 'a' + 'A'; - } - } - } else { - uint32_t v, code, len; - int idx, idx_min, idx_max; - - idx_min = 0; - idx_max = countof(case_conv_table1) - 1; - while (idx_min <= idx_max) { - idx = (unsigned)(idx_max + idx_min) / 2; - v = case_conv_table1[idx]; - code = v >> (32 - 17); - len = (v >> (32 - 17 - 7)) & 0x7f; - if (c < code) { - idx_max = idx - 1; - } else if (c >= code + len) { - idx_min = idx + 1; - } else { - return lre_case_conv_entry(res, c, conv_type, idx, v); - } - } - } - res[0] = c; - return 1; -} - -static int lre_case_folding_entry(uint32_t c, uint32_t idx, uint32_t v, BOOL is_unicode) -{ - uint32_t res[LRE_CC_RES_LEN_MAX]; - int len; - - if (is_unicode) { - len = lre_case_conv_entry(res, c, 2, idx, v); - if (len == 1) { - c = res[0]; - } else { - /* handle the few specific multi-character cases (see - unicode_gen.c:dump_case_folding_special_cases()) */ - if (c == 0xfb06) { - c = 0xfb05; - } else if (c == 0x01fd3) { - c = 0x390; - } else if (c == 0x01fe3) { - c = 0x3b0; - } - } - } else { - if (likely(c < 128)) { - if (c >= 'a' && c <= 'z') - c = c - 'a' + 'A'; - } else { - /* legacy regexp: to upper case if single char >= 128 */ - len = lre_case_conv_entry(res, c, FALSE, idx, v); - if (len == 1 && res[0] >= 128) - c = res[0]; - } - } - return c; -} - -/* JS regexp specific rules for case folding */ -int lre_canonicalize(uint32_t c, BOOL is_unicode) -{ - if (c < 128) { - /* fast case */ - if (is_unicode) { - if (c >= 'A' && c <= 'Z') { - c = c - 'A' + 'a'; - } - } else { - if (c >= 'a' && c <= 'z') { - c = c - 'a' + 'A'; - } - } - } else { - uint32_t v, code, len; - int idx, idx_min, idx_max; - - idx_min = 0; - idx_max = countof(case_conv_table1) - 1; - while (idx_min <= idx_max) { - idx = (unsigned)(idx_max + idx_min) / 2; - v = case_conv_table1[idx]; - code = v >> (32 - 17); - len = (v >> (32 - 17 - 7)) & 0x7f; - if (c < code) { - idx_max = idx - 1; - } else if (c >= code + len) { - idx_min = idx + 1; - } else { - return lre_case_folding_entry(c, idx, v, is_unicode); - } - } - } - return c; -} - -static uint32_t get_le24(const uint8_t *ptr) -{ -#if defined(__x86__) || defined(__x86_64__) - return *(uint16_t *)ptr | (ptr[2] << 16); -#else - return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16); -#endif -} - -#define UNICODE_INDEX_BLOCK_LEN 32 - -/* return -1 if not in table, otherwise the offset in the block */ -static int get_index_pos(uint32_t *pcode, uint32_t c, - const uint8_t *index_table, int index_table_len) -{ - uint32_t code, v; - int idx_min, idx_max, idx; - - idx_min = 0; - v = get_le24(index_table); - code = v & ((1 << 21) - 1); - if (c < code) { - *pcode = 0; - return 0; - } - idx_max = index_table_len - 1; - code = get_le24(index_table + idx_max * 3); - if (c >= code) - return -1; - /* invariant: tab[idx_min] <= c < tab2[idx_max] */ - while ((idx_max - idx_min) > 1) { - idx = (idx_max + idx_min) / 2; - v = get_le24(index_table + idx * 3); - code = v & ((1 << 21) - 1); - if (c < code) { - idx_max = idx; - } else { - idx_min = idx; - } - } - v = get_le24(index_table + idx_min * 3); - *pcode = v & ((1 << 21) - 1); - return (idx_min + 1) * UNICODE_INDEX_BLOCK_LEN + (v >> 21); -} - -static BOOL lre_is_in_table(uint32_t c, const uint8_t *table, - const uint8_t *index_table, int index_table_len) -{ - uint32_t code, b, bit; - int pos; - const uint8_t *p; - - pos = get_index_pos(&code, c, index_table, index_table_len); - if (pos < 0) - return FALSE; /* outside the table */ - p = table + pos; - bit = 0; - for(;;) { - b = *p++; - if (b < 64) { - code += (b >> 3) + 1; - if (c < code) - return bit; - bit ^= 1; - code += (b & 7) + 1; - } else if (b >= 0x80) { - code += b - 0x80 + 1; - } else if (b < 0x60) { - code += (((b - 0x40) << 8) | p[0]) + 1; - p++; - } else { - code += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1; - p += 2; - } - if (c < code) - return bit; - bit ^= 1; - } -} - -BOOL lre_is_cased(uint32_t c) -{ - uint32_t v, code, len; - int idx, idx_min, idx_max; - - idx_min = 0; - idx_max = countof(case_conv_table1) - 1; - while (idx_min <= idx_max) { - idx = (unsigned)(idx_max + idx_min) / 2; - v = case_conv_table1[idx]; - code = v >> (32 - 17); - len = (v >> (32 - 17 - 7)) & 0x7f; - if (c < code) { - idx_max = idx - 1; - } else if (c >= code + len) { - idx_min = idx + 1; - } else { - return TRUE; - } - } - return lre_is_in_table(c, unicode_prop_Cased1_table, - unicode_prop_Cased1_index, - sizeof(unicode_prop_Cased1_index) / 3); -} - -BOOL lre_is_case_ignorable(uint32_t c) -{ - return lre_is_in_table(c, unicode_prop_Case_Ignorable_table, - unicode_prop_Case_Ignorable_index, - sizeof(unicode_prop_Case_Ignorable_index) / 3); -} - -/* character range */ - -static __maybe_unused void cr_dump(CharRange *cr) -{ - int i; - for(i = 0; i < cr->len; i++) - printf("%d: 0x%04x\n", i, cr->points[i]); -} - -static void *cr_default_realloc(void *opaque, void *ptr, size_t size) -{ - return realloc(ptr, size); -} - -void cr_init(CharRange *cr, void *mem_opaque, DynBufReallocFunc *realloc_func) -{ - cr->len = cr->size = 0; - cr->points = NULL; - cr->mem_opaque = mem_opaque; - cr->realloc_func = realloc_func ? realloc_func : cr_default_realloc; -} - -void cr_free(CharRange *cr) -{ - cr->realloc_func(cr->mem_opaque, cr->points, 0); -} - -int cr_realloc(CharRange *cr, int size) -{ - int new_size; - uint32_t *new_buf; - - if (size > cr->size) { - new_size = max_int(size, cr->size * 3 / 2); - new_buf = cr->realloc_func(cr->mem_opaque, cr->points, - new_size * sizeof(cr->points[0])); - if (!new_buf) - return -1; - cr->points = new_buf; - cr->size = new_size; - } - return 0; -} - -int cr_copy(CharRange *cr, const CharRange *cr1) -{ - if (cr_realloc(cr, cr1->len)) - return -1; - memcpy(cr->points, cr1->points, sizeof(cr->points[0]) * cr1->len); - cr->len = cr1->len; - return 0; -} - -/* merge consecutive intervals and remove empty intervals */ -static void cr_compress(CharRange *cr) -{ - int i, j, k, len; - uint32_t *pt; - - pt = cr->points; - len = cr->len; - i = 0; - j = 0; - k = 0; - while ((i + 1) < len) { - if (pt[i] == pt[i + 1]) { - /* empty interval */ - i += 2; - } else { - j = i; - while ((j + 3) < len && pt[j + 1] == pt[j + 2]) - j += 2; - /* just copy */ - pt[k] = pt[i]; - pt[k + 1] = pt[j + 1]; - k += 2; - i = j + 2; - } - } - cr->len = k; -} - -/* union or intersection */ -int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len, - const uint32_t *b_pt, int b_len, int op) -{ - int a_idx, b_idx, is_in; - uint32_t v; - - a_idx = 0; - b_idx = 0; - for(;;) { - /* get one more point from a or b in increasing order */ - if (a_idx < a_len && b_idx < b_len) { - if (a_pt[a_idx] < b_pt[b_idx]) { - goto a_add; - } else if (a_pt[a_idx] == b_pt[b_idx]) { - v = a_pt[a_idx]; - a_idx++; - b_idx++; - } else { - goto b_add; - } - } else if (a_idx < a_len) { - a_add: - v = a_pt[a_idx++]; - } else if (b_idx < b_len) { - b_add: - v = b_pt[b_idx++]; - } else { - break; - } - /* add the point if the in/out status changes */ - switch(op) { - case CR_OP_UNION: - is_in = (a_idx & 1) | (b_idx & 1); - break; - case CR_OP_INTER: - is_in = (a_idx & 1) & (b_idx & 1); - break; - case CR_OP_XOR: - is_in = (a_idx & 1) ^ (b_idx & 1); - break; - default: - abort(); - } - if (is_in != (cr->len & 1)) { - if (cr_add_point(cr, v)) - return -1; - } - } - cr_compress(cr); - return 0; -} - -int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len) -{ - CharRange a = *cr; - int ret; - cr->len = 0; - cr->size = 0; - cr->points = NULL; - ret = cr_op(cr, a.points, a.len, b_pt, b_len, CR_OP_UNION); - cr_free(&a); - return ret; -} - -int cr_invert(CharRange *cr) -{ - int len; - len = cr->len; - if (cr_realloc(cr, len + 2)) - return -1; - memmove(cr->points + 1, cr->points, len * sizeof(cr->points[0])); - cr->points[0] = 0; - cr->points[len + 1] = UINT32_MAX; - cr->len = len + 2; - cr_compress(cr); - return 0; -} - -#ifdef CONFIG_ALL_UNICODE - -BOOL lre_is_id_start(uint32_t c) -{ - return lre_is_in_table(c, unicode_prop_ID_Start_table, - unicode_prop_ID_Start_index, - sizeof(unicode_prop_ID_Start_index) / 3); -} - -BOOL lre_is_id_continue(uint32_t c) -{ - return lre_is_id_start(c) || - lre_is_in_table(c, unicode_prop_ID_Continue1_table, - unicode_prop_ID_Continue1_index, - sizeof(unicode_prop_ID_Continue1_index) / 3); -} - -#define UNICODE_DECOMP_LEN_MAX 18 - -typedef enum { - DECOMP_TYPE_C1, /* 16 bit char */ - DECOMP_TYPE_L1, /* 16 bit char table */ - DECOMP_TYPE_L2, - DECOMP_TYPE_L3, - DECOMP_TYPE_L4, - DECOMP_TYPE_L5, /* XXX: not used */ - DECOMP_TYPE_L6, /* XXX: could remove */ - DECOMP_TYPE_L7, /* XXX: could remove */ - DECOMP_TYPE_LL1, /* 18 bit char table */ - DECOMP_TYPE_LL2, - DECOMP_TYPE_S1, /* 8 bit char table */ - DECOMP_TYPE_S2, - DECOMP_TYPE_S3, - DECOMP_TYPE_S4, - DECOMP_TYPE_S5, - DECOMP_TYPE_I1, /* increment 16 bit char value */ - DECOMP_TYPE_I2_0, - DECOMP_TYPE_I2_1, - DECOMP_TYPE_I3_1, - DECOMP_TYPE_I3_2, - DECOMP_TYPE_I4_1, - DECOMP_TYPE_I4_2, - DECOMP_TYPE_B1, /* 16 bit base + 8 bit offset */ - DECOMP_TYPE_B2, - DECOMP_TYPE_B3, - DECOMP_TYPE_B4, - DECOMP_TYPE_B5, - DECOMP_TYPE_B6, - DECOMP_TYPE_B7, - DECOMP_TYPE_B8, - DECOMP_TYPE_B18, - DECOMP_TYPE_LS2, - DECOMP_TYPE_PAT3, - DECOMP_TYPE_S2_UL, - DECOMP_TYPE_LS2_UL, -} DecompTypeEnum; - -static uint32_t unicode_get_short_code(uint32_t c) -{ - static const uint16_t unicode_short_table[2] = { 0x2044, 0x2215 }; - - if (c < 0x80) - return c; - else if (c < 0x80 + 0x50) - return c - 0x80 + 0x300; - else - return unicode_short_table[c - 0x80 - 0x50]; -} - -static uint32_t unicode_get_lower_simple(uint32_t c) -{ - if (c < 0x100 || (c >= 0x410 && c <= 0x42f)) - c += 0x20; - else - c++; - return c; -} - -static uint16_t unicode_get16(const uint8_t *p) -{ - return p[0] | (p[1] << 8); -} - -static int unicode_decomp_entry(uint32_t *res, uint32_t c, - int idx, uint32_t code, uint32_t len, - uint32_t type) -{ - uint32_t c1; - int l, i, p; - const uint8_t *d; - - if (type == DECOMP_TYPE_C1) { - res[0] = unicode_decomp_table2[idx]; - return 1; - } else { - d = unicode_decomp_data + unicode_decomp_table2[idx]; - switch(type) { - case DECOMP_TYPE_L1: - case DECOMP_TYPE_L2: - case DECOMP_TYPE_L3: - case DECOMP_TYPE_L4: - case DECOMP_TYPE_L5: - case DECOMP_TYPE_L6: - case DECOMP_TYPE_L7: - l = type - DECOMP_TYPE_L1 + 1; - d += (c - code) * l * 2; - for(i = 0; i < l; i++) { - if ((res[i] = unicode_get16(d + 2 * i)) == 0) - return 0; - } - return l; - case DECOMP_TYPE_LL1: - case DECOMP_TYPE_LL2: - { - uint32_t k, p; - l = type - DECOMP_TYPE_LL1 + 1; - k = (c - code) * l; - p = len * l * 2; - for(i = 0; i < l; i++) { - c1 = unicode_get16(d + 2 * k) | - (((d[p + (k / 4)] >> ((k % 4) * 2)) & 3) << 16); - if (!c1) - return 0; - res[i] = c1; - k++; - } - } - return l; - case DECOMP_TYPE_S1: - case DECOMP_TYPE_S2: - case DECOMP_TYPE_S3: - case DECOMP_TYPE_S4: - case DECOMP_TYPE_S5: - l = type - DECOMP_TYPE_S1 + 1; - d += (c - code) * l; - for(i = 0; i < l; i++) { - if ((res[i] = unicode_get_short_code(d[i])) == 0) - return 0; - } - return l; - case DECOMP_TYPE_I1: - l = 1; - p = 0; - goto decomp_type_i; - case DECOMP_TYPE_I2_0: - case DECOMP_TYPE_I2_1: - case DECOMP_TYPE_I3_1: - case DECOMP_TYPE_I3_2: - case DECOMP_TYPE_I4_1: - case DECOMP_TYPE_I4_2: - l = 2 + ((type - DECOMP_TYPE_I2_0) >> 1); - p = ((type - DECOMP_TYPE_I2_0) & 1) + (l > 2); - decomp_type_i: - for(i = 0; i < l; i++) { - c1 = unicode_get16(d + 2 * i); - if (i == p) - c1 += c - code; - res[i] = c1; - } - return l; - case DECOMP_TYPE_B18: - l = 18; - goto decomp_type_b; - case DECOMP_TYPE_B1: - case DECOMP_TYPE_B2: - case DECOMP_TYPE_B3: - case DECOMP_TYPE_B4: - case DECOMP_TYPE_B5: - case DECOMP_TYPE_B6: - case DECOMP_TYPE_B7: - case DECOMP_TYPE_B8: - l = type - DECOMP_TYPE_B1 + 1; - decomp_type_b: - { - uint32_t c_min; - c_min = unicode_get16(d); - d += 2 + (c - code) * l; - for(i = 0; i < l; i++) { - c1 = d[i]; - if (c1 == 0xff) - c1 = 0x20; - else - c1 += c_min; - res[i] = c1; - } - } - return l; - case DECOMP_TYPE_LS2: - d += (c - code) * 3; - if (!(res[0] = unicode_get16(d))) - return 0; - res[1] = unicode_get_short_code(d[2]); - return 2; - case DECOMP_TYPE_PAT3: - res[0] = unicode_get16(d); - res[2] = unicode_get16(d + 2); - d += 4 + (c - code) * 2; - res[1] = unicode_get16(d); - return 3; - case DECOMP_TYPE_S2_UL: - case DECOMP_TYPE_LS2_UL: - c1 = c - code; - if (type == DECOMP_TYPE_S2_UL) { - d += c1 & ~1; - c = unicode_get_short_code(*d); - d++; - } else { - d += (c1 >> 1) * 3; - c = unicode_get16(d); - d += 2; - } - if (c1 & 1) - c = unicode_get_lower_simple(c); - res[0] = c; - res[1] = unicode_get_short_code(*d); - return 2; - } - } - return 0; -} - - -/* return the length of the decomposition (length <= - UNICODE_DECOMP_LEN_MAX) or 0 if no decomposition */ -static int unicode_decomp_char(uint32_t *res, uint32_t c, BOOL is_compat1) -{ - uint32_t v, type, is_compat, code, len; - int idx_min, idx_max, idx; - - idx_min = 0; - idx_max = countof(unicode_decomp_table1) - 1; - while (idx_min <= idx_max) { - idx = (idx_max + idx_min) / 2; - v = unicode_decomp_table1[idx]; - code = v >> (32 - 18); - len = (v >> (32 - 18 - 7)) & 0x7f; - // printf("idx=%d code=%05x len=%d\n", idx, code, len); - if (c < code) { - idx_max = idx - 1; - } else if (c >= code + len) { - idx_min = idx + 1; - } else { - is_compat = v & 1; - if (is_compat1 < is_compat) - break; - type = (v >> (32 - 18 - 7 - 6)) & 0x3f; - return unicode_decomp_entry(res, c, idx, code, len, type); - } - } - return 0; -} - -/* return 0 if no pair found */ -static int unicode_compose_pair(uint32_t c0, uint32_t c1) -{ - uint32_t code, len, type, v, idx1, d_idx, d_offset, ch; - int idx_min, idx_max, idx, d; - uint32_t pair[2]; - - idx_min = 0; - idx_max = countof(unicode_comp_table) - 1; - while (idx_min <= idx_max) { - idx = (idx_max + idx_min) / 2; - idx1 = unicode_comp_table[idx]; - - /* idx1 represent an entry of the decomposition table */ - d_idx = idx1 >> 6; - d_offset = idx1 & 0x3f; - v = unicode_decomp_table1[d_idx]; - code = v >> (32 - 18); - len = (v >> (32 - 18 - 7)) & 0x7f; - type = (v >> (32 - 18 - 7 - 6)) & 0x3f; - ch = code + d_offset; - unicode_decomp_entry(pair, ch, d_idx, code, len, type); - d = c0 - pair[0]; - if (d == 0) - d = c1 - pair[1]; - if (d < 0) { - idx_max = idx - 1; - } else if (d > 0) { - idx_min = idx + 1; - } else { - return ch; - } - } - return 0; -} - -/* return the combining class of character c (between 0 and 255) */ -static int unicode_get_cc(uint32_t c) -{ - uint32_t code, n, type, cc, c1, b; - int pos; - const uint8_t *p; - - pos = get_index_pos(&code, c, - unicode_cc_index, sizeof(unicode_cc_index) / 3); - if (pos < 0) - return 0; - p = unicode_cc_table + pos; - for(;;) { - b = *p++; - type = b >> 6; - n = b & 0x3f; - if (n < 48) { - } else if (n < 56) { - n = (n - 48) << 8; - n |= *p++; - n += 48; - } else { - n = (n - 56) << 8; - n |= *p++ << 8; - n |= *p++; - n += 48 + (1 << 11); - } - if (type <= 1) - p++; - c1 = code + n + 1; - if (c < c1) { - switch(type) { - case 0: - cc = p[-1]; - break; - case 1: - cc = p[-1] + c - code; - break; - case 2: - cc = 0; - break; - default: - case 3: - cc = 230; - break; - } - return cc; - } - code = c1; - } -} - -static void sort_cc(int *buf, int len) -{ - int i, j, k, cc, cc1, start, ch1; - - for(i = 0; i < len; i++) { - cc = unicode_get_cc(buf[i]); - if (cc != 0) { - start = i; - j = i + 1; - while (j < len) { - ch1 = buf[j]; - cc1 = unicode_get_cc(ch1); - if (cc1 == 0) - break; - k = j - 1; - while (k >= start) { - if (unicode_get_cc(buf[k]) <= cc1) - break; - buf[k + 1] = buf[k]; - k--; - } - buf[k + 1] = ch1; - j++; - } -#if 0 - printf("cc:"); - for(k = start; k < j; k++) { - printf(" %3d", unicode_get_cc(buf[k])); - } - printf("\n"); -#endif - i = j; - } - } -} - -static void to_nfd_rec(DynBuf *dbuf, - const int *src, int src_len, int is_compat) -{ - uint32_t c, v; - int i, l; - uint32_t res[UNICODE_DECOMP_LEN_MAX]; - - for(i = 0; i < src_len; i++) { - c = src[i]; - if (c >= 0xac00 && c < 0xd7a4) { - /* Hangul decomposition */ - c -= 0xac00; - dbuf_put_u32(dbuf, 0x1100 + c / 588); - dbuf_put_u32(dbuf, 0x1161 + (c % 588) / 28); - v = c % 28; - if (v != 0) - dbuf_put_u32(dbuf, 0x11a7 + v); - } else { - l = unicode_decomp_char(res, c, is_compat); - if (l) { - to_nfd_rec(dbuf, (int *)res, l, is_compat); - } else { - dbuf_put_u32(dbuf, c); - } - } - } -} - -/* return 0 if not found */ -static int compose_pair(uint32_t c0, uint32_t c1) -{ - /* Hangul composition */ - if (c0 >= 0x1100 && c0 < 0x1100 + 19 && - c1 >= 0x1161 && c1 < 0x1161 + 21) { - return 0xac00 + (c0 - 0x1100) * 588 + (c1 - 0x1161) * 28; - } else if (c0 >= 0xac00 && c0 < 0xac00 + 11172 && - (c0 - 0xac00) % 28 == 0 && - c1 >= 0x11a7 && c1 < 0x11a7 + 28) { - return c0 + c1 - 0x11a7; - } else { - return unicode_compose_pair(c0, c1); - } -} - -int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len, - UnicodeNormalizationEnum n_type, - void *opaque, DynBufReallocFunc *realloc_func) -{ - int *buf, buf_len, i, p, starter_pos, cc, last_cc, out_len; - BOOL is_compat; - DynBuf dbuf_s, *dbuf = &dbuf_s; - - is_compat = n_type >> 1; - - dbuf_init2(dbuf, opaque, realloc_func); - if (dbuf_realloc(dbuf, sizeof(int) * src_len)) - goto fail; - - /* common case: latin1 is unaffected by NFC */ - if (n_type == UNICODE_NFC) { - for(i = 0; i < src_len; i++) { - if (src[i] >= 0x100) - goto not_latin1; - } - buf = (int *)dbuf->buf; - memcpy(buf, src, src_len * sizeof(int)); - *pdst = (uint32_t *)buf; - return src_len; - not_latin1: ; - } - - to_nfd_rec(dbuf, (const int *)src, src_len, is_compat); - if (dbuf_error(dbuf)) { - fail: - *pdst = NULL; - return -1; - } - buf = (int *)dbuf->buf; - buf_len = dbuf->size / sizeof(int); - - sort_cc(buf, buf_len); - - if (buf_len <= 1 || (n_type & 1) != 0) { - /* NFD / NFKD */ - *pdst = (uint32_t *)buf; - return buf_len; - } - - i = 1; - out_len = 1; - while (i < buf_len) { - /* find the starter character and test if it is blocked from - the character at 'i' */ - last_cc = unicode_get_cc(buf[i]); - starter_pos = out_len - 1; - while (starter_pos >= 0) { - cc = unicode_get_cc(buf[starter_pos]); - if (cc == 0) - break; - if (cc >= last_cc) - goto next; - last_cc = 256; - starter_pos--; - } - if (starter_pos >= 0 && - (p = compose_pair(buf[starter_pos], buf[i])) != 0) { - buf[starter_pos] = p; - i++; - } else { - next: - buf[out_len++] = buf[i++]; - } - } - *pdst = (uint32_t *)buf; - return out_len; -} - -/* char ranges for various unicode properties */ - -static int unicode_find_name(const char *name_table, const char *name) -{ - const char *p, *r; - int pos; - size_t name_len, len; - - p = name_table; - pos = 0; - name_len = strlen(name); - while (*p) { - for(;;) { - r = strchr(p, ','); - if (!r) - len = strlen(p); - else - len = r - p; - if (len == name_len && !memcmp(p, name, name_len)) - return pos; - p += len + 1; - if (!r) - break; - } - pos++; - } - return -1; -} - -/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2 - if not found */ -int unicode_script(CharRange *cr, - const char *script_name, BOOL is_ext) -{ - int script_idx; - const uint8_t *p, *p_end; - uint32_t c, c1, b, n, v, v_len, i, type; - CharRange cr1_s, *cr1; - CharRange cr2_s, *cr2 = &cr2_s; - BOOL is_common; - - script_idx = unicode_find_name(unicode_script_name_table, script_name); - if (script_idx < 0) - return -2; - /* Note: we remove the "Unknown" Script */ - script_idx += UNICODE_SCRIPT_Unknown + 1; - - is_common = (script_idx == UNICODE_SCRIPT_Common || - script_idx == UNICODE_SCRIPT_Inherited); - if (is_ext) { - cr1 = &cr1_s; - cr_init(cr1, cr->mem_opaque, cr->realloc_func); - cr_init(cr2, cr->mem_opaque, cr->realloc_func); - } else { - cr1 = cr; - } - - p = unicode_script_table; - p_end = unicode_script_table + countof(unicode_script_table); - c = 0; - while (p < p_end) { - b = *p++; - type = b >> 7; - n = b & 0x7f; - if (n < 96) { - } else if (n < 112) { - n = (n - 96) << 8; - n |= *p++; - n += 96; - } else { - n = (n - 112) << 16; - n |= *p++ << 8; - n |= *p++; - n += 96 + (1 << 12); - } - if (type == 0) - v = 0; - else - v = *p++; - c1 = c + n + 1; - if (v == script_idx) { - if (cr_add_interval(cr1, c, c1)) - goto fail; - } - c = c1; - } - - if (is_ext) { - /* add the script extensions */ - p = unicode_script_ext_table; - p_end = unicode_script_ext_table + countof(unicode_script_ext_table); - c = 0; - while (p < p_end) { - b = *p++; - if (b < 128) { - n = b; - } else if (b < 128 + 64) { - n = (b - 128) << 8; - n |= *p++; - n += 128; - } else { - n = (b - 128 - 64) << 16; - n |= *p++ << 8; - n |= *p++; - n += 128 + (1 << 14); - } - c1 = c + n + 1; - v_len = *p++; - if (is_common) { - if (v_len != 0) { - if (cr_add_interval(cr2, c, c1)) - goto fail; - } - } else { - for(i = 0; i < v_len; i++) { - if (p[i] == script_idx) { - if (cr_add_interval(cr2, c, c1)) - goto fail; - break; - } - } - } - p += v_len; - c = c1; - } - if (is_common) { - /* remove all the characters with script extensions */ - if (cr_invert(cr2)) - goto fail; - if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len, - CR_OP_INTER)) - goto fail; - } else { - if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len, - CR_OP_UNION)) - goto fail; - } - cr_free(cr1); - cr_free(cr2); - } - return 0; - fail: - if (is_ext) { - cr_free(cr1); - cr_free(cr2); - } - goto fail; -} - -#define M(id) (1U << UNICODE_GC_ ## id) - -static int unicode_general_category1(CharRange *cr, uint32_t gc_mask) -{ - const uint8_t *p, *p_end; - uint32_t c, c0, b, n, v; - - p = unicode_gc_table; - p_end = unicode_gc_table + countof(unicode_gc_table); - c = 0; - while (p < p_end) { - b = *p++; - n = b >> 5; - v = b & 0x1f; - if (n == 7) { - n = *p++; - if (n < 128) { - n += 7; - } else if (n < 128 + 64) { - n = (n - 128) << 8; - n |= *p++; - n += 7 + 128; - } else { - n = (n - 128 - 64) << 16; - n |= *p++ << 8; - n |= *p++; - n += 7 + 128 + (1 << 14); - } - } - c0 = c; - c += n + 1; - if (v == 31) { - /* run of Lu / Ll */ - b = gc_mask & (M(Lu) | M(Ll)); - if (b != 0) { - if (b == (M(Lu) | M(Ll))) { - goto add_range; - } else { - c0 += ((gc_mask & M(Ll)) != 0); - for(; c0 < c; c0 += 2) { - if (cr_add_interval(cr, c0, c0 + 1)) - return -1; - } - } - } - } else if ((gc_mask >> v) & 1) { - add_range: - if (cr_add_interval(cr, c0, c)) - return -1; - } - } - return 0; -} - -static int unicode_prop1(CharRange *cr, int prop_idx) -{ - const uint8_t *p, *p_end; - uint32_t c, c0, b, bit; - - p = unicode_prop_table[prop_idx]; - p_end = p + unicode_prop_len_table[prop_idx]; - c = 0; - bit = 0; - while (p < p_end) { - c0 = c; - b = *p++; - if (b < 64) { - c += (b >> 3) + 1; - if (bit) { - if (cr_add_interval(cr, c0, c)) - return -1; - } - bit ^= 1; - c0 = c; - c += (b & 7) + 1; - } else if (b >= 0x80) { - c += b - 0x80 + 1; - } else if (b < 0x60) { - c += (((b - 0x40) << 8) | p[0]) + 1; - p++; - } else { - c += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1; - p += 2; - } - if (bit) { - if (cr_add_interval(cr, c0, c)) - return -1; - } - bit ^= 1; - } - return 0; -} - -#define CASE_U (1 << 0) -#define CASE_L (1 << 1) -#define CASE_F (1 << 2) - -/* use the case conversion table to generate range of characters. - CASE_U: set char if modified by uppercasing, - CASE_L: set char if modified by lowercasing, - CASE_F: set char if modified by case folding, - */ -static int unicode_case1(CharRange *cr, int case_mask) -{ -#define MR(x) (1 << RUN_TYPE_ ## x) - const uint32_t tab_run_mask[3] = { - MR(U) | MR(UF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(UF_D20) | - MR(UF_D1_EXT) | MR(U_EXT) | MR(UF_EXT2) | MR(UF_EXT3), - - MR(L) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(LF_EXT2), - - MR(UF) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(LF_EXT2) | MR(UF_D20) | MR(UF_D1_EXT) | MR(LF_EXT) | MR(UF_EXT2) | MR(UF_EXT3), - }; -#undef MR - uint32_t mask, v, code, type, len, i, idx; - - if (case_mask == 0) - return 0; - mask = 0; - for(i = 0; i < 3; i++) { - if ((case_mask >> i) & 1) - mask |= tab_run_mask[i]; - } - for(idx = 0; idx < countof(case_conv_table1); idx++) { - v = case_conv_table1[idx]; - type = (v >> (32 - 17 - 7 - 4)) & 0xf; - code = v >> (32 - 17); - len = (v >> (32 - 17 - 7)) & 0x7f; - if ((mask >> type) & 1) { - // printf("%d: type=%d %04x %04x\n", idx, type, code, code + len - 1); - switch(type) { - case RUN_TYPE_UL: - if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F))) - goto def_case; - code += ((case_mask & CASE_U) != 0); - for(i = 0; i < len; i += 2) { - if (cr_add_interval(cr, code + i, code + i + 1)) - return -1; - } - break; - case RUN_TYPE_LSU: - if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F))) - goto def_case; - if (!(case_mask & CASE_U)) { - if (cr_add_interval(cr, code, code + 1)) - return -1; - } - if (cr_add_interval(cr, code + 1, code + 2)) - return -1; - if (case_mask & CASE_U) { - if (cr_add_interval(cr, code + 2, code + 3)) - return -1; - } - break; - default: - def_case: - if (cr_add_interval(cr, code, code + len)) - return -1; - break; - } - } - } - return 0; -} - -static int point_cmp(const void *p1, const void *p2, void *arg) -{ - uint32_t v1 = *(uint32_t *)p1; - uint32_t v2 = *(uint32_t *)p2; - return (v1 > v2) - (v1 < v2); -} - -static void cr_sort_and_remove_overlap(CharRange *cr) -{ - uint32_t start, end, start1, end1, i, j; - - /* the resulting ranges are not necessarily sorted and may overlap */ - rqsort(cr->points, cr->len / 2, sizeof(cr->points[0]) * 2, point_cmp, NULL); - j = 0; - for(i = 0; i < cr->len; ) { - start = cr->points[i]; - end = cr->points[i + 1]; - i += 2; - while (i < cr->len) { - start1 = cr->points[i]; - end1 = cr->points[i + 1]; - if (start1 > end) { - /* |------| - * |-------| */ - break; - } else if (end1 <= end) { - /* |------| - * |--| */ - i += 2; - } else { - /* |------| - * |-------| */ - end = end1; - i += 2; - } - } - cr->points[j] = start; - cr->points[j + 1] = end; - j += 2; - } - cr->len = j; -} - -/* canonicalize a character set using the JS regex case folding rules - (see lre_canonicalize()) */ -int cr_regexp_canonicalize(CharRange *cr, BOOL is_unicode) -{ - CharRange cr_inter, cr_mask, cr_result, cr_sub; - uint32_t v, code, len, i, idx, start, end, c, d_start, d_end, d; - - cr_init(&cr_mask, cr->mem_opaque, cr->realloc_func); - cr_init(&cr_inter, cr->mem_opaque, cr->realloc_func); - cr_init(&cr_result, cr->mem_opaque, cr->realloc_func); - cr_init(&cr_sub, cr->mem_opaque, cr->realloc_func); - - if (unicode_case1(&cr_mask, is_unicode ? CASE_F : CASE_U)) - goto fail; - if (cr_op(&cr_inter, cr_mask.points, cr_mask.len, cr->points, cr->len, CR_OP_INTER)) - goto fail; - - if (cr_invert(&cr_mask)) - goto fail; - if (cr_op(&cr_sub, cr_mask.points, cr_mask.len, cr->points, cr->len, CR_OP_INTER)) - goto fail; - - /* cr_inter = cr & cr_mask */ - /* cr_sub = cr & ~cr_mask */ - - /* use the case conversion table to compute the result */ - d_start = -1; - d_end = -1; - idx = 0; - v = case_conv_table1[idx]; - code = v >> (32 - 17); - len = (v >> (32 - 17 - 7)) & 0x7f; - for(i = 0; i < cr_inter.len; i += 2) { - start = cr_inter.points[i]; - end = cr_inter.points[i + 1]; - - for(c = start; c < end; c++) { - for(;;) { - if (c >= code && c < code + len) - break; - idx++; - assert(idx < countof(case_conv_table1)); - v = case_conv_table1[idx]; - code = v >> (32 - 17); - len = (v >> (32 - 17 - 7)) & 0x7f; - } - d = lre_case_folding_entry(c, idx, v, is_unicode); - /* try to merge with the current interval */ - if (d_start == -1) { - d_start = d; - d_end = d + 1; - } else if (d_end == d) { - d_end++; - } else { - cr_add_interval(&cr_result, d_start, d_end); - d_start = d; - d_end = d + 1; - } - } - } - if (d_start != -1) { - if (cr_add_interval(&cr_result, d_start, d_end)) - goto fail; - } - - /* the resulting ranges are not necessarily sorted and may overlap */ - cr_sort_and_remove_overlap(&cr_result); - - /* or with the character not affected by the case folding */ - cr->len = 0; - if (cr_op(cr, cr_result.points, cr_result.len, cr_sub.points, cr_sub.len, CR_OP_UNION)) - goto fail; - - cr_free(&cr_inter); - cr_free(&cr_mask); - cr_free(&cr_result); - cr_free(&cr_sub); - return 0; - fail: - cr_free(&cr_inter); - cr_free(&cr_mask); - cr_free(&cr_result); - cr_free(&cr_sub); - return -1; -} - -typedef enum { - POP_GC, - POP_PROP, - POP_CASE, - POP_UNION, - POP_INTER, - POP_XOR, - POP_INVERT, - POP_END, -} PropOPEnum; - -#define POP_STACK_LEN_MAX 4 - -static int unicode_prop_ops(CharRange *cr, ...) -{ - va_list ap; - CharRange stack[POP_STACK_LEN_MAX]; - int stack_len, op, ret, i; - uint32_t a; - - va_start(ap, cr); - stack_len = 0; - for(;;) { - op = va_arg(ap, int); - switch(op) { - case POP_GC: - assert(stack_len < POP_STACK_LEN_MAX); - a = va_arg(ap, int); - cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func); - if (unicode_general_category1(&stack[stack_len - 1], a)) - goto fail; - break; - case POP_PROP: - assert(stack_len < POP_STACK_LEN_MAX); - a = va_arg(ap, int); - cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func); - if (unicode_prop1(&stack[stack_len - 1], a)) - goto fail; - break; - case POP_CASE: - assert(stack_len < POP_STACK_LEN_MAX); - a = va_arg(ap, int); - cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func); - if (unicode_case1(&stack[stack_len - 1], a)) - goto fail; - break; - case POP_UNION: - case POP_INTER: - case POP_XOR: - { - CharRange *cr1, *cr2, *cr3; - assert(stack_len >= 2); - assert(stack_len < POP_STACK_LEN_MAX); - cr1 = &stack[stack_len - 2]; - cr2 = &stack[stack_len - 1]; - cr3 = &stack[stack_len++]; - cr_init(cr3, cr->mem_opaque, cr->realloc_func); - if (cr_op(cr3, cr1->points, cr1->len, - cr2->points, cr2->len, op - POP_UNION + CR_OP_UNION)) - goto fail; - cr_free(cr1); - cr_free(cr2); - *cr1 = *cr3; - stack_len -= 2; - } - break; - case POP_INVERT: - assert(stack_len >= 1); - if (cr_invert(&stack[stack_len - 1])) - goto fail; - break; - case POP_END: - goto done; - default: - abort(); - } - } - done: - assert(stack_len == 1); - ret = cr_copy(cr, &stack[0]); - cr_free(&stack[0]); - return ret; - fail: - for(i = 0; i < stack_len; i++) - cr_free(&stack[i]); - return -1; -} - -static const uint32_t unicode_gc_mask_table[] = { - M(Lu) | M(Ll) | M(Lt), /* LC */ - M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo), /* L */ - M(Mn) | M(Mc) | M(Me), /* M */ - M(Nd) | M(Nl) | M(No), /* N */ - M(Sm) | M(Sc) | M(Sk) | M(So), /* S */ - M(Pc) | M(Pd) | M(Ps) | M(Pe) | M(Pi) | M(Pf) | M(Po), /* P */ - M(Zs) | M(Zl) | M(Zp), /* Z */ - M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn), /* C */ -}; - -/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2 - if not found */ -int unicode_general_category(CharRange *cr, const char *gc_name) -{ - int gc_idx; - uint32_t gc_mask; - - gc_idx = unicode_find_name(unicode_gc_name_table, gc_name); - if (gc_idx < 0) - return -2; - if (gc_idx <= UNICODE_GC_Co) { - gc_mask = (uint64_t)1 << gc_idx; - } else { - gc_mask = unicode_gc_mask_table[gc_idx - UNICODE_GC_LC]; - } - return unicode_general_category1(cr, gc_mask); -} - - -/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2 - if not found */ -int unicode_prop(CharRange *cr, const char *prop_name) -{ - int prop_idx, ret; - - prop_idx = unicode_find_name(unicode_prop_name_table, prop_name); - if (prop_idx < 0) - return -2; - prop_idx += UNICODE_PROP_ASCII_Hex_Digit; - - ret = 0; - switch(prop_idx) { - case UNICODE_PROP_ASCII: - if (cr_add_interval(cr, 0x00, 0x7f + 1)) - return -1; - break; - case UNICODE_PROP_Any: - if (cr_add_interval(cr, 0x00000, 0x10ffff + 1)) - return -1; - break; - case UNICODE_PROP_Assigned: - ret = unicode_prop_ops(cr, - POP_GC, M(Cn), - POP_INVERT, - POP_END); - break; - case UNICODE_PROP_Math: - ret = unicode_prop_ops(cr, - POP_GC, M(Sm), - POP_PROP, UNICODE_PROP_Other_Math, - POP_UNION, - POP_END); - break; - case UNICODE_PROP_Lowercase: - ret = unicode_prop_ops(cr, - POP_GC, M(Ll), - POP_PROP, UNICODE_PROP_Other_Lowercase, - POP_UNION, - POP_END); - break; - case UNICODE_PROP_Uppercase: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu), - POP_PROP, UNICODE_PROP_Other_Uppercase, - POP_UNION, - POP_END); - break; - case UNICODE_PROP_Cased: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu) | M(Ll) | M(Lt), - POP_PROP, UNICODE_PROP_Other_Uppercase, - POP_UNION, - POP_PROP, UNICODE_PROP_Other_Lowercase, - POP_UNION, - POP_END); - break; - case UNICODE_PROP_Alphabetic: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl), - POP_PROP, UNICODE_PROP_Other_Uppercase, - POP_UNION, - POP_PROP, UNICODE_PROP_Other_Lowercase, - POP_UNION, - POP_PROP, UNICODE_PROP_Other_Alphabetic, - POP_UNION, - POP_END); - break; - case UNICODE_PROP_Grapheme_Base: - ret = unicode_prop_ops(cr, - POP_GC, M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn) | M(Zl) | M(Zp) | M(Me) | M(Mn), - POP_PROP, UNICODE_PROP_Other_Grapheme_Extend, - POP_UNION, - POP_INVERT, - POP_END); - break; - case UNICODE_PROP_Grapheme_Extend: - ret = unicode_prop_ops(cr, - POP_GC, M(Me) | M(Mn), - POP_PROP, UNICODE_PROP_Other_Grapheme_Extend, - POP_UNION, - POP_END); - break; - case UNICODE_PROP_XID_Start: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl), - POP_PROP, UNICODE_PROP_Other_ID_Start, - POP_UNION, - POP_PROP, UNICODE_PROP_Pattern_Syntax, - POP_PROP, UNICODE_PROP_Pattern_White_Space, - POP_UNION, - POP_PROP, UNICODE_PROP_XID_Start1, - POP_UNION, - POP_INVERT, - POP_INTER, - POP_END); - break; - case UNICODE_PROP_XID_Continue: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) | - M(Mn) | M(Mc) | M(Nd) | M(Pc), - POP_PROP, UNICODE_PROP_Other_ID_Start, - POP_UNION, - POP_PROP, UNICODE_PROP_Other_ID_Continue, - POP_UNION, - POP_PROP, UNICODE_PROP_Pattern_Syntax, - POP_PROP, UNICODE_PROP_Pattern_White_Space, - POP_UNION, - POP_PROP, UNICODE_PROP_XID_Continue1, - POP_UNION, - POP_INVERT, - POP_INTER, - POP_END); - break; - case UNICODE_PROP_Changes_When_Uppercased: - ret = unicode_case1(cr, CASE_U); - break; - case UNICODE_PROP_Changes_When_Lowercased: - ret = unicode_case1(cr, CASE_L); - break; - case UNICODE_PROP_Changes_When_Casemapped: - ret = unicode_case1(cr, CASE_U | CASE_L | CASE_F); - break; - case UNICODE_PROP_Changes_When_Titlecased: - ret = unicode_prop_ops(cr, - POP_CASE, CASE_U, - POP_PROP, UNICODE_PROP_Changes_When_Titlecased1, - POP_XOR, - POP_END); - break; - case UNICODE_PROP_Changes_When_Casefolded: - ret = unicode_prop_ops(cr, - POP_CASE, CASE_F, - POP_PROP, UNICODE_PROP_Changes_When_Casefolded1, - POP_XOR, - POP_END); - break; - case UNICODE_PROP_Changes_When_NFKC_Casefolded: - ret = unicode_prop_ops(cr, - POP_CASE, CASE_F, - POP_PROP, UNICODE_PROP_Changes_When_NFKC_Casefolded1, - POP_XOR, - POP_END); - break; -#if 0 - case UNICODE_PROP_ID_Start: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl), - POP_PROP, UNICODE_PROP_Other_ID_Start, - POP_UNION, - POP_PROP, UNICODE_PROP_Pattern_Syntax, - POP_PROP, UNICODE_PROP_Pattern_White_Space, - POP_UNION, - POP_INVERT, - POP_INTER, - POP_END); - break; - case UNICODE_PROP_ID_Continue: - ret = unicode_prop_ops(cr, - POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) | - M(Mn) | M(Mc) | M(Nd) | M(Pc), - POP_PROP, UNICODE_PROP_Other_ID_Start, - POP_UNION, - POP_PROP, UNICODE_PROP_Other_ID_Continue, - POP_UNION, - POP_PROP, UNICODE_PROP_Pattern_Syntax, - POP_PROP, UNICODE_PROP_Pattern_White_Space, - POP_UNION, - POP_INVERT, - POP_INTER, - POP_END); - break; - case UNICODE_PROP_Case_Ignorable: - ret = unicode_prop_ops(cr, - POP_GC, M(Mn) | M(Cf) | M(Lm) | M(Sk), - POP_PROP, UNICODE_PROP_Case_Ignorable1, - POP_XOR, - POP_END); - break; -#else - /* we use the existing tables */ - case UNICODE_PROP_ID_Continue: - ret = unicode_prop_ops(cr, - POP_PROP, UNICODE_PROP_ID_Start, - POP_PROP, UNICODE_PROP_ID_Continue1, - POP_XOR, - POP_END); - break; -#endif - default: - if (prop_idx >= countof(unicode_prop_table)) - return -2; - ret = unicode_prop1(cr, prop_idx); - break; - } - return ret; -} - -#endif /* CONFIG_ALL_UNICODE */ diff --git a/deps/quickjs/libunicode.h b/deps/quickjs/libunicode.h deleted file mode 100644 index 8abacb01..00000000 --- a/deps/quickjs/libunicode.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - * Unicode utilities - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef LIBUNICODE_H -#define LIBUNICODE_H - -#include - -#define LRE_BOOL int /* for documentation purposes */ - -/* define it to include all the unicode tables (40KB larger) */ -#define CONFIG_ALL_UNICODE - -#define LRE_CC_RES_LEN_MAX 3 - -typedef enum { - UNICODE_NFC, - UNICODE_NFD, - UNICODE_NFKC, - UNICODE_NFKD, -} UnicodeNormalizationEnum; - -int lre_case_conv(uint32_t *res, uint32_t c, int conv_type); -int lre_canonicalize(uint32_t c, BOOL is_unicode); -LRE_BOOL lre_is_cased(uint32_t c); -LRE_BOOL lre_is_case_ignorable(uint32_t c); - -/* char ranges */ - -typedef struct { - int len; /* in points, always even */ - int size; - uint32_t *points; /* points sorted by increasing value */ - void *mem_opaque; - void *(*realloc_func)(void *opaque, void *ptr, size_t size); -} CharRange; - -typedef enum { - CR_OP_UNION, - CR_OP_INTER, - CR_OP_XOR, -} CharRangeOpEnum; - -void cr_init(CharRange *cr, void *mem_opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size)); -void cr_free(CharRange *cr); -int cr_realloc(CharRange *cr, int size); -int cr_copy(CharRange *cr, const CharRange *cr1); - -static inline int cr_add_point(CharRange *cr, uint32_t v) -{ - if (cr->len >= cr->size) { - if (cr_realloc(cr, cr->len + 1)) - return -1; - } - cr->points[cr->len++] = v; - return 0; -} - -static inline int cr_add_interval(CharRange *cr, uint32_t c1, uint32_t c2) -{ - if ((cr->len + 2) > cr->size) { - if (cr_realloc(cr, cr->len + 2)) - return -1; - } - cr->points[cr->len++] = c1; - cr->points[cr->len++] = c2; - return 0; -} - -int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len); - -static inline int cr_union_interval(CharRange *cr, uint32_t c1, uint32_t c2) -{ - uint32_t b_pt[2]; - b_pt[0] = c1; - b_pt[1] = c2 + 1; - return cr_union1(cr, b_pt, 2); -} - -int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len, - const uint32_t *b_pt, int b_len, int op); - -int cr_invert(CharRange *cr); - -int cr_regexp_canonicalize(CharRange *cr, BOOL is_unicode); - -#ifdef CONFIG_ALL_UNICODE - -LRE_BOOL lre_is_id_start(uint32_t c); -LRE_BOOL lre_is_id_continue(uint32_t c); - -int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len, - UnicodeNormalizationEnum n_type, - void *opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size)); - -/* Unicode character range functions */ - -int unicode_script(CharRange *cr, - const char *script_name, LRE_BOOL is_ext); -int unicode_general_category(CharRange *cr, const char *gc_name); -int unicode_prop(CharRange *cr, const char *prop_name); - -#endif /* CONFIG_ALL_UNICODE */ - -#undef LRE_BOOL - -#endif /* LIBUNICODE_H */ diff --git a/deps/quickjs/list.h b/deps/quickjs/list.h deleted file mode 100644 index 5c182340..00000000 --- a/deps/quickjs/list.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Linux klist like system - * - * Copyright (c) 2016-2017 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef LIST_H -#define LIST_H - -#ifndef NULL -#include -#endif - -struct list_head { - struct list_head *prev; - struct list_head *next; -}; - -#define LIST_HEAD_INIT(el) { &(el), &(el) } - -/* return the pointer of type 'type *' containing 'el' as field 'member' */ -#define list_entry(el, type, member) container_of(el, type, member) - -static inline void init_list_head(struct list_head *head) -{ - head->prev = head; - head->next = head; -} - -/* insert 'el' between 'prev' and 'next' */ -static inline void __list_add(struct list_head *el, - struct list_head *prev, struct list_head *next) -{ - prev->next = el; - el->prev = prev; - el->next = next; - next->prev = el; -} - -/* add 'el' at the head of the list 'head' (= after element head) */ -static inline void list_add(struct list_head *el, struct list_head *head) -{ - __list_add(el, head, head->next); -} - -/* add 'el' at the end of the list 'head' (= before element head) */ -static inline void list_add_tail(struct list_head *el, struct list_head *head) -{ - __list_add(el, head->prev, head); -} - -static inline void list_del(struct list_head *el) -{ - struct list_head *prev, *next; - prev = el->prev; - next = el->next; - prev->next = next; - next->prev = prev; - el->prev = NULL; /* fail safe */ - el->next = NULL; /* fail safe */ -} - -static inline int list_empty(struct list_head *el) -{ - return el->next == el; -} - -#define list_for_each(el, head) \ - for(el = (head)->next; el != (head); el = el->next) - -#define list_for_each_safe(el, el1, head) \ - for(el = (head)->next, el1 = el->next; el != (head); \ - el = el1, el1 = el->next) - -#define list_for_each_prev(el, head) \ - for(el = (head)->prev; el != (head); el = el->prev) - -#define list_for_each_prev_safe(el, el1, head) \ - for(el = (head)->prev, el1 = el->prev; el != (head); \ - el = el1, el1 = el->prev) - -#endif /* LIST_H */ diff --git a/deps/quickjs/qjs.c b/deps/quickjs/qjs.c deleted file mode 100644 index 77b5cfbc..00000000 --- a/deps/quickjs/qjs.c +++ /dev/null @@ -1,561 +0,0 @@ -/* - * QuickJS stand alone interpreter - * - * Copyright (c) 2017-2021 Fabrice Bellard - * Copyright (c) 2017-2021 Charlie Gordon - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#if defined(__APPLE__) -#include -#elif defined(__linux__) -#include -#endif - -#include "cutils.h" -#include "quickjs-libc.h" - -extern const uint8_t qjsc_repl[]; -extern const uint32_t qjsc_repl_size; -#ifdef CONFIG_BIGNUM -extern const uint8_t qjsc_qjscalc[]; -extern const uint32_t qjsc_qjscalc_size; -static int bignum_ext; -#endif - -static int eval_buf(JSContext *ctx, const void *buf, int buf_len, - const char *filename, int eval_flags) -{ - JSValue val; - int ret; - - if ((eval_flags & JS_EVAL_TYPE_MASK) == JS_EVAL_TYPE_MODULE) { - /* for the modules, we compile then run to be able to set - import.meta */ - val = JS_Eval(ctx, buf, buf_len, filename, - eval_flags | JS_EVAL_FLAG_COMPILE_ONLY); - if (!JS_IsException(val)) { - js_module_set_import_meta(ctx, val, TRUE, TRUE); - val = JS_EvalFunction(ctx, val); - } - } else { - val = JS_Eval(ctx, buf, buf_len, filename, eval_flags); - } - if (JS_IsException(val)) { - js_std_dump_error(ctx); - ret = -1; - } else { - ret = 0; - } - JS_FreeValue(ctx, val); - return ret; -} - -static int eval_file(JSContext *ctx, const char *filename, int module) -{ - uint8_t *buf; - int ret, eval_flags; - size_t buf_len; - - buf = js_load_file(ctx, &buf_len, filename); - if (!buf) { - perror(filename); - exit(1); - } - - if (module < 0) { - module = (has_suffix(filename, ".mjs") || - JS_DetectModule((const char *)buf, buf_len)); - } - if (module) - eval_flags = JS_EVAL_TYPE_MODULE; - else - eval_flags = JS_EVAL_TYPE_GLOBAL; - ret = eval_buf(ctx, buf, buf_len, filename, eval_flags); - js_free(ctx, buf); - return ret; -} - -/* also used to initialize the worker context */ -static JSContext *JS_NewCustomContext(JSRuntime *rt) -{ - JSContext *ctx; - ctx = JS_NewContext(rt); - if (!ctx) - return NULL; -#ifdef CONFIG_BIGNUM - if (bignum_ext) { - JS_AddIntrinsicBigFloat(ctx); - JS_AddIntrinsicBigDecimal(ctx); - JS_AddIntrinsicOperators(ctx); - JS_EnableBignumExt(ctx, TRUE); - } -#endif - /* system modules */ - js_init_module_std(ctx, "std"); - js_init_module_os(ctx, "os"); - return ctx; -} - -#if defined(__APPLE__) -#define MALLOC_OVERHEAD 0 -#else -#define MALLOC_OVERHEAD 8 -#endif - -struct trace_malloc_data { - uint8_t *base; -}; - -static inline unsigned long long js_trace_malloc_ptr_offset(uint8_t *ptr, - struct trace_malloc_data *dp) -{ - return ptr - dp->base; -} - -/* default memory allocation functions with memory limitation */ -static size_t js_trace_malloc_usable_size(const void *ptr) -{ -#if defined(__APPLE__) - return malloc_size(ptr); -#elif defined(_WIN32) - return _msize((void *)ptr); -#elif defined(EMSCRIPTEN) - return 0; -#elif defined(__linux__) - return malloc_usable_size((void *)ptr); -#else - /* change this to `return 0;` if compilation fails */ - return malloc_usable_size((void *)ptr); -#endif -} - -static void -#ifdef _WIN32 -/* mingw printf is used */ -__attribute__((format(gnu_printf, 2, 3))) -#else -__attribute__((format(printf, 2, 3))) -#endif - js_trace_malloc_printf(JSMallocState *s, const char *fmt, ...) -{ - va_list ap; - int c; - - va_start(ap, fmt); - while ((c = *fmt++) != '\0') { - if (c == '%') { - /* only handle %p and %zd */ - if (*fmt == 'p') { - uint8_t *ptr = va_arg(ap, void *); - if (ptr == NULL) { - printf("NULL"); - } else { - printf("H%+06lld.%zd", - js_trace_malloc_ptr_offset(ptr, s->opaque), - js_trace_malloc_usable_size(ptr)); - } - fmt++; - continue; - } - if (fmt[0] == 'z' && fmt[1] == 'd') { - size_t sz = va_arg(ap, size_t); - printf("%zd", sz); - fmt += 2; - continue; - } - } - putc(c, stdout); - } - va_end(ap); -} - -static void js_trace_malloc_init(struct trace_malloc_data *s) -{ - free(s->base = malloc(8)); -} - -static void *js_trace_malloc(JSMallocState *s, size_t size) -{ - void *ptr; - - /* Do not allocate zero bytes: behavior is platform dependent */ - assert(size != 0); - - if (unlikely(s->malloc_size + size > s->malloc_limit)) - return NULL; - ptr = malloc(size); - js_trace_malloc_printf(s, "A %zd -> %p\n", size, ptr); - if (ptr) { - s->malloc_count++; - s->malloc_size += js_trace_malloc_usable_size(ptr) + MALLOC_OVERHEAD; - } - return ptr; -} - -static void js_trace_free(JSMallocState *s, void *ptr) -{ - if (!ptr) - return; - - js_trace_malloc_printf(s, "F %p\n", ptr); - s->malloc_count--; - s->malloc_size -= js_trace_malloc_usable_size(ptr) + MALLOC_OVERHEAD; - free(ptr); -} - -static void *js_trace_realloc(JSMallocState *s, void *ptr, size_t size) -{ - size_t old_size; - - if (!ptr) { - if (size == 0) - return NULL; - return js_trace_malloc(s, size); - } - old_size = js_trace_malloc_usable_size(ptr); - if (size == 0) { - js_trace_malloc_printf(s, "R %zd %p\n", size, ptr); - s->malloc_count--; - s->malloc_size -= old_size + MALLOC_OVERHEAD; - free(ptr); - return NULL; - } - if (s->malloc_size + size - old_size > s->malloc_limit) - return NULL; - - js_trace_malloc_printf(s, "R %zd %p", size, ptr); - - ptr = realloc(ptr, size); - js_trace_malloc_printf(s, " -> %p\n", ptr); - if (ptr) { - s->malloc_size += js_trace_malloc_usable_size(ptr) - old_size; - } - return ptr; -} - -static const JSMallocFunctions trace_mf = { - js_trace_malloc, - js_trace_free, - js_trace_realloc, - js_trace_malloc_usable_size, -}; - -#define PROG_NAME "qjs" - -void help(void) -{ - printf("QuickJS version " CONFIG_VERSION "\n" - "usage: " PROG_NAME " [options] [file [args]]\n" - "-h --help list options\n" - "-e --eval EXPR evaluate EXPR\n" - "-i --interactive go to interactive mode\n" - "-m --module load as ES6 module (default=autodetect)\n" - " --script load as ES6 script (default=autodetect)\n" - "-I --include file include an additional file\n" - " --std make 'std' and 'os' available to the loaded script\n" -#ifdef CONFIG_BIGNUM - " --bignum enable the bignum extensions (BigFloat, BigDecimal)\n" - " --qjscalc load the QJSCalc runtime (default if invoked as qjscalc)\n" -#endif - "-T --trace trace memory allocation\n" - "-d --dump dump the memory usage stats\n" - " --memory-limit n limit the memory usage to 'n' bytes\n" - " --stack-size n limit the stack size to 'n' bytes\n" - " --unhandled-rejection dump unhandled promise rejections\n" - "-q --quit just instantiate the interpreter and quit\n"); - exit(1); -} - -int main(int argc, char **argv) -{ - JSRuntime *rt; - JSContext *ctx; - struct trace_malloc_data trace_data = { NULL }; - int optind; - char *expr = NULL; - int interactive = 0; - int dump_memory = 0; - int trace_memory = 0; - int empty_run = 0; - int module = -1; - int load_std = 0; - int dump_unhandled_promise_rejection = 0; - size_t memory_limit = 0; - char *include_list[32]; - int i, include_count = 0; -#ifdef CONFIG_BIGNUM - int load_jscalc; -#endif - size_t stack_size = 0; - -#ifdef CONFIG_BIGNUM - /* load jscalc runtime if invoked as 'qjscalc' */ - { - const char *p, *exename; - exename = argv[0]; - p = strrchr(exename, '/'); - if (p) - exename = p + 1; - load_jscalc = !strcmp(exename, "qjscalc"); - } -#endif - - /* cannot use getopt because we want to pass the command line to - the script */ - optind = 1; - while (optind < argc && *argv[optind] == '-') { - char *arg = argv[optind] + 1; - const char *longopt = ""; - /* a single - is not an option, it also stops argument scanning */ - if (!*arg) - break; - optind++; - if (*arg == '-') { - longopt = arg + 1; - arg += strlen(arg); - /* -- stops argument scanning */ - if (!*longopt) - break; - } - for (; *arg || *longopt; longopt = "") { - char opt = *arg; - if (opt) - arg++; - if (opt == 'h' || opt == '?' || !strcmp(longopt, "help")) { - help(); - continue; - } - if (opt == 'e' || !strcmp(longopt, "eval")) { - if (*arg) { - expr = arg; - break; - } - if (optind < argc) { - expr = argv[optind++]; - break; - } - fprintf(stderr, "qjs: missing expression for -e\n"); - exit(2); - } - if (opt == 'I' || !strcmp(longopt, "include")) { - if (optind >= argc) { - fprintf(stderr, "expecting filename"); - exit(1); - } - if (include_count >= countof(include_list)) { - fprintf(stderr, "too many included files"); - exit(1); - } - include_list[include_count++] = argv[optind++]; - continue; - } - if (opt == 'i' || !strcmp(longopt, "interactive")) { - interactive++; - continue; - } - if (opt == 'm' || !strcmp(longopt, "module")) { - module = 1; - continue; - } - if (!strcmp(longopt, "script")) { - module = 0; - continue; - } - if (opt == 'd' || !strcmp(longopt, "dump")) { - dump_memory++; - continue; - } - if (opt == 'T' || !strcmp(longopt, "trace")) { - trace_memory++; - continue; - } - if (!strcmp(longopt, "std")) { - load_std = 1; - continue; - } - if (!strcmp(longopt, "unhandled-rejection")) { - dump_unhandled_promise_rejection = 1; - continue; - } -#ifdef CONFIG_BIGNUM - if (!strcmp(longopt, "bignum")) { - bignum_ext = 1; - continue; - } - if (!strcmp(longopt, "qjscalc")) { - load_jscalc = 1; - continue; - } -#endif - if (opt == 'q' || !strcmp(longopt, "quit")) { - empty_run++; - continue; - } - if (!strcmp(longopt, "memory-limit")) { - if (optind >= argc) { - fprintf(stderr, "expecting memory limit"); - exit(1); - } - memory_limit = (size_t)strtod(argv[optind++], NULL); - continue; - } - if (!strcmp(longopt, "stack-size")) { - if (optind >= argc) { - fprintf(stderr, "expecting stack size"); - exit(1); - } - stack_size = (size_t)strtod(argv[optind++], NULL); - continue; - } - if (opt) { - fprintf(stderr, "qjs: unknown option '-%c'\n", opt); - } else { - fprintf(stderr, "qjs: unknown option '--%s'\n", longopt); - } - help(); - } - } - -#ifdef CONFIG_BIGNUM - if (load_jscalc) - bignum_ext = 1; -#endif - - if (trace_memory) { - js_trace_malloc_init(&trace_data); - rt = JS_NewRuntime2(&trace_mf, &trace_data); - } else { - rt = JS_NewRuntime(); - } - if (!rt) { - fprintf(stderr, "qjs: cannot allocate JS runtime\n"); - exit(2); - } - if (memory_limit != 0) - JS_SetMemoryLimit(rt, memory_limit); - if (stack_size != 0) - JS_SetMaxStackSize(rt, stack_size); - js_std_set_worker_new_context_func(JS_NewCustomContext); - js_std_init_handlers(rt); - ctx = JS_NewCustomContext(rt); - if (!ctx) { - fprintf(stderr, "qjs: cannot allocate JS context\n"); - exit(2); - } - - /* loader for ES6 modules */ - JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL); - - if (dump_unhandled_promise_rejection) { - JS_SetHostPromiseRejectionTracker(rt, js_std_promise_rejection_tracker, - NULL); - } - - if (!empty_run) { -#ifdef CONFIG_BIGNUM - if (load_jscalc) { - js_std_eval_binary(ctx, qjsc_qjscalc, qjsc_qjscalc_size, 0); - } -#endif - js_std_add_helpers(ctx, argc - optind, argv + optind); - - /* make 'std' and 'os' visible to non module code */ - if (load_std) { - const char *str = "import * as std from 'std';\n" - "import * as os from 'os';\n" - "globalThis.std = std;\n" - "globalThis.os = os;\n"; - eval_buf(ctx, str, strlen(str), "", JS_EVAL_TYPE_MODULE); - } - - for(i = 0; i < include_count; i++) { - if (eval_file(ctx, include_list[i], module)) - goto fail; - } - - if (expr) { - if (eval_buf(ctx, expr, strlen(expr), "", 0)) - goto fail; - } else - if (optind >= argc) { - /* interactive mode */ - interactive = 1; - } else { - const char *filename; - filename = argv[optind]; - if (eval_file(ctx, filename, module)) - goto fail; - } - if (interactive) { - js_std_eval_binary(ctx, qjsc_repl, qjsc_repl_size, 0); - } - js_std_loop(ctx); - } - - if (dump_memory) { - JSMemoryUsage stats; - JS_ComputeMemoryUsage(rt, &stats); - JS_DumpMemoryUsage(stdout, &stats, rt); - } - js_std_free_handlers(rt); - JS_FreeContext(ctx); - JS_FreeRuntime(rt); - - if (empty_run && dump_memory) { - clock_t t[5]; - double best[5]; - int i, j; - for (i = 0; i < 100; i++) { - t[0] = clock(); - rt = JS_NewRuntime(); - t[1] = clock(); - ctx = JS_NewContext(rt); - t[2] = clock(); - JS_FreeContext(ctx); - t[3] = clock(); - JS_FreeRuntime(rt); - t[4] = clock(); - for (j = 4; j > 0; j--) { - double ms = 1000.0 * (t[j] - t[j - 1]) / CLOCKS_PER_SEC; - if (i == 0 || best[j] > ms) - best[j] = ms; - } - } - printf("\nInstantiation times (ms): %.3f = %.3f+%.3f+%.3f+%.3f\n", - best[1] + best[2] + best[3] + best[4], - best[1], best[2], best[3], best[4]); - } - return 0; - fail: - js_std_free_handlers(rt); - JS_FreeContext(ctx); - JS_FreeRuntime(rt); - return 1; -} diff --git a/deps/quickjs/qjsc.c b/deps/quickjs/qjsc.c deleted file mode 100644 index f8e60b3e..00000000 --- a/deps/quickjs/qjsc.c +++ /dev/null @@ -1,761 +0,0 @@ -/* - * QuickJS command line compiler - * - * Copyright (c) 2018-2021 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#if !defined(_WIN32) -#include -#endif - -#include "cutils.h" -#include "quickjs-libc.h" - -typedef struct { - char *name; - char *short_name; - int flags; -} namelist_entry_t; - -typedef struct namelist_t { - namelist_entry_t *array; - int count; - int size; -} namelist_t; - -typedef struct { - const char *option_name; - const char *init_name; -} FeatureEntry; - -static namelist_t cname_list; -static namelist_t cmodule_list; -static namelist_t init_module_list; -static uint64_t feature_bitmap; -static FILE *outfile; -static BOOL byte_swap; -static BOOL dynamic_export; -static const char *c_ident_prefix = "qjsc_"; - -#define FE_ALL (-1) - -static const FeatureEntry feature_list[] = { - { "date", "Date" }, - { "eval", "Eval" }, - { "string-normalize", "StringNormalize" }, - { "regexp", "RegExp" }, - { "json", "JSON" }, - { "proxy", "Proxy" }, - { "map", "MapSet" }, - { "typedarray", "TypedArrays" }, - { "promise", "Promise" }, -#define FE_MODULE_LOADER 9 - { "module-loader", NULL }, - { "bigint", "BigInt" }, -}; - -void namelist_add(namelist_t *lp, const char *name, const char *short_name, - int flags) -{ - namelist_entry_t *e; - if (lp->count == lp->size) { - size_t newsize = lp->size + (lp->size >> 1) + 4; - namelist_entry_t *a = - realloc(lp->array, sizeof(lp->array[0]) * newsize); - /* XXX: check for realloc failure */ - lp->array = a; - lp->size = newsize; - } - e = &lp->array[lp->count++]; - e->name = strdup(name); - if (short_name) - e->short_name = strdup(short_name); - else - e->short_name = NULL; - e->flags = flags; -} - -void namelist_free(namelist_t *lp) -{ - while (lp->count > 0) { - namelist_entry_t *e = &lp->array[--lp->count]; - free(e->name); - free(e->short_name); - } - free(lp->array); - lp->array = NULL; - lp->size = 0; -} - -namelist_entry_t *namelist_find(namelist_t *lp, const char *name) -{ - int i; - for(i = 0; i < lp->count; i++) { - namelist_entry_t *e = &lp->array[i]; - if (!strcmp(e->name, name)) - return e; - } - return NULL; -} - -static void get_c_name(char *buf, size_t buf_size, const char *file) -{ - const char *p, *r; - size_t len, i; - int c; - char *q; - - p = strrchr(file, '/'); - if (!p) - p = file; - else - p++; - r = strrchr(p, '.'); - if (!r) - len = strlen(p); - else - len = r - p; - pstrcpy(buf, buf_size, c_ident_prefix); - q = buf + strlen(buf); - for(i = 0; i < len; i++) { - c = p[i]; - if (!((c >= '0' && c <= '9') || - (c >= 'A' && c <= 'Z') || - (c >= 'a' && c <= 'z'))) { - c = '_'; - } - if ((q - buf) < buf_size - 1) - *q++ = c; - } - *q = '\0'; -} - -static void dump_hex(FILE *f, const uint8_t *buf, size_t len) -{ - size_t i, col; - col = 0; - for(i = 0; i < len; i++) { - fprintf(f, " 0x%02x,", buf[i]); - if (++col == 8) { - fprintf(f, "\n"); - col = 0; - } - } - if (col != 0) - fprintf(f, "\n"); -} - -static void output_object_code(JSContext *ctx, - FILE *fo, JSValueConst obj, const char *c_name, - BOOL load_only) -{ - uint8_t *out_buf; - size_t out_buf_len; - int flags; - flags = JS_WRITE_OBJ_BYTECODE; - if (byte_swap) - flags |= JS_WRITE_OBJ_BSWAP; - out_buf = JS_WriteObject(ctx, &out_buf_len, obj, flags); - if (!out_buf) { - js_std_dump_error(ctx); - exit(1); - } - - namelist_add(&cname_list, c_name, NULL, load_only); - - fprintf(fo, "const uint32_t %s_size = %u;\n\n", - c_name, (unsigned int)out_buf_len); - fprintf(fo, "const uint8_t %s[%u] = {\n", - c_name, (unsigned int)out_buf_len); - dump_hex(fo, out_buf, out_buf_len); - fprintf(fo, "};\n\n"); - - js_free(ctx, out_buf); -} - -static int js_module_dummy_init(JSContext *ctx, JSModuleDef *m) -{ - /* should never be called when compiling JS code */ - abort(); -} - -static void find_unique_cname(char *cname, size_t cname_size) -{ - char cname1[1024]; - int suffix_num; - size_t len, max_len; - assert(cname_size >= 32); - /* find a C name not matching an existing module C name by - adding a numeric suffix */ - len = strlen(cname); - max_len = cname_size - 16; - if (len > max_len) - cname[max_len] = '\0'; - suffix_num = 1; - for(;;) { - snprintf(cname1, sizeof(cname1), "%s_%d", cname, suffix_num); - if (!namelist_find(&cname_list, cname1)) - break; - suffix_num++; - } - pstrcpy(cname, cname_size, cname1); -} - -JSModuleDef *jsc_module_loader(JSContext *ctx, - const char *module_name, void *opaque) -{ - JSModuleDef *m; - namelist_entry_t *e; - - /* check if it is a declared C or system module */ - e = namelist_find(&cmodule_list, module_name); - if (e) { - /* add in the static init module list */ - namelist_add(&init_module_list, e->name, e->short_name, 0); - /* create a dummy module */ - m = JS_NewCModule(ctx, module_name, js_module_dummy_init); - } else if (has_suffix(module_name, ".so")) { - fprintf(stderr, "Warning: binary module '%s' will be dynamically loaded\n", module_name); - /* create a dummy module */ - m = JS_NewCModule(ctx, module_name, js_module_dummy_init); - /* the resulting executable will export its symbols for the - dynamic library */ - dynamic_export = TRUE; - } else { - size_t buf_len; - uint8_t *buf; - JSValue func_val; - char cname[1024]; - - buf = js_load_file(ctx, &buf_len, module_name); - if (!buf) { - JS_ThrowReferenceError(ctx, "could not load module filename '%s'", - module_name); - return NULL; - } - - /* compile the module */ - func_val = JS_Eval(ctx, (char *)buf, buf_len, module_name, - JS_EVAL_TYPE_MODULE | JS_EVAL_FLAG_COMPILE_ONLY); - js_free(ctx, buf); - if (JS_IsException(func_val)) - return NULL; - get_c_name(cname, sizeof(cname), module_name); - if (namelist_find(&cname_list, cname)) { - find_unique_cname(cname, sizeof(cname)); - } - output_object_code(ctx, outfile, func_val, cname, TRUE); - - /* the module is already referenced, so we must free it */ - m = JS_VALUE_GET_PTR(func_val); - JS_FreeValue(ctx, func_val); - } - return m; -} - -static void compile_file(JSContext *ctx, FILE *fo, - const char *filename, - const char *c_name1, - int module) -{ - uint8_t *buf; - char c_name[1024]; - int eval_flags; - JSValue obj; - size_t buf_len; - - buf = js_load_file(ctx, &buf_len, filename); - if (!buf) { - fprintf(stderr, "Could not load '%s'\n", filename); - exit(1); - } - eval_flags = JS_EVAL_FLAG_COMPILE_ONLY; - if (module < 0) { - module = (has_suffix(filename, ".mjs") || - JS_DetectModule((const char *)buf, buf_len)); - } - if (module) - eval_flags |= JS_EVAL_TYPE_MODULE; - else - eval_flags |= JS_EVAL_TYPE_GLOBAL; - obj = JS_Eval(ctx, (const char *)buf, buf_len, filename, eval_flags); - if (JS_IsException(obj)) { - js_std_dump_error(ctx); - exit(1); - } - js_free(ctx, buf); - if (c_name1) { - pstrcpy(c_name, sizeof(c_name), c_name1); - } else { - get_c_name(c_name, sizeof(c_name), filename); - } - output_object_code(ctx, fo, obj, c_name, FALSE); - JS_FreeValue(ctx, obj); -} - -static const char main_c_template1[] = - "int main(int argc, char **argv)\n" - "{\n" - " JSRuntime *rt;\n" - " JSContext *ctx;\n" - " rt = JS_NewRuntime();\n" - " js_std_set_worker_new_context_func(JS_NewCustomContext);\n" - " js_std_init_handlers(rt);\n" - ; - -static const char main_c_template2[] = - " js_std_loop(ctx);\n" - " js_std_free_handlers(rt);\n" - " JS_FreeContext(ctx);\n" - " JS_FreeRuntime(rt);\n" - " return 0;\n" - "}\n"; - -#define PROG_NAME "qjsc" - -void help(void) -{ - printf("QuickJS Compiler version " CONFIG_VERSION "\n" - "usage: " PROG_NAME " [options] [files]\n" - "\n" - "options are:\n" - "-c only output bytecode to a C file\n" - "-e output main() and bytecode to a C file (default = executable output)\n" - "-o output set the output filename\n" - "-N cname set the C name of the generated data\n" - "-m compile as Javascript module (default=autodetect)\n" - "-D module_name compile a dynamically loaded module or worker\n" - "-M module_name[,cname] add initialization code for an external C module\n" - "-x byte swapped output\n" - "-p prefix set the prefix of the generated C names\n" - "-S n set the maximum stack size to 'n' bytes (default=%d)\n", - JS_DEFAULT_STACK_SIZE); -#ifdef CONFIG_LTO - { - int i; - printf("-flto use link time optimization\n"); - printf("-fbignum enable bignum extensions\n"); - printf("-fno-["); - for(i = 0; i < countof(feature_list); i++) { - if (i != 0) - printf("|"); - printf("%s", feature_list[i].option_name); - } - printf("]\n" - " disable selected language features (smaller code size)\n"); - } -#endif - exit(1); -} - -#if defined(CONFIG_CC) && !defined(_WIN32) - -int exec_cmd(char **argv) -{ - int pid, status, ret; - - pid = fork(); - if (pid == 0) { - execvp(argv[0], argv); - exit(1); - } - - for(;;) { - ret = waitpid(pid, &status, 0); - if (ret == pid && WIFEXITED(status)) - break; - } - return WEXITSTATUS(status); -} - -static int output_executable(const char *out_filename, const char *cfilename, - BOOL use_lto, BOOL verbose, const char *exename) -{ - const char *argv[64]; - const char **arg, *bn_suffix, *lto_suffix; - char libjsname[1024]; - char exe_dir[1024], inc_dir[1024], lib_dir[1024], buf[1024], *p; - int ret; - - /* get the directory of the executable */ - pstrcpy(exe_dir, sizeof(exe_dir), exename); - p = strrchr(exe_dir, '/'); - if (p) { - *p = '\0'; - } else { - pstrcpy(exe_dir, sizeof(exe_dir), "."); - } - - /* if 'quickjs.h' is present at the same path as the executable, we - use it as include and lib directory */ - snprintf(buf, sizeof(buf), "%s/quickjs.h", exe_dir); - if (access(buf, R_OK) == 0) { - pstrcpy(inc_dir, sizeof(inc_dir), exe_dir); - pstrcpy(lib_dir, sizeof(lib_dir), exe_dir); - } else { - snprintf(inc_dir, sizeof(inc_dir), "%s/include/quickjs", CONFIG_PREFIX); - snprintf(lib_dir, sizeof(lib_dir), "%s/lib/quickjs", CONFIG_PREFIX); - } - - lto_suffix = ""; - bn_suffix = ""; - - arg = argv; - *arg++ = CONFIG_CC; - *arg++ = "-O2"; -#ifdef CONFIG_LTO - if (use_lto) { - *arg++ = "-flto"; - lto_suffix = ".lto"; - } -#endif - /* XXX: use the executable path to find the includes files and - libraries */ - *arg++ = "-D"; - *arg++ = "_GNU_SOURCE"; - *arg++ = "-I"; - *arg++ = inc_dir; - *arg++ = "-o"; - *arg++ = out_filename; - if (dynamic_export) - *arg++ = "-rdynamic"; - *arg++ = cfilename; - snprintf(libjsname, sizeof(libjsname), "%s/libquickjs%s%s.a", - lib_dir, bn_suffix, lto_suffix); - *arg++ = libjsname; - *arg++ = "-lm"; - *arg++ = "-ldl"; - *arg++ = "-lpthread"; - *arg = NULL; - - if (verbose) { - for(arg = argv; *arg != NULL; arg++) - printf("%s ", *arg); - printf("\n"); - } - - ret = exec_cmd((char **)argv); - unlink(cfilename); - return ret; -} -#else -static int output_executable(const char *out_filename, const char *cfilename, - BOOL use_lto, BOOL verbose, const char *exename) -{ - fprintf(stderr, "Executable output is not supported for this target\n"); - exit(1); - return 0; -} -#endif - - -typedef enum { - OUTPUT_C, - OUTPUT_C_MAIN, - OUTPUT_EXECUTABLE, -} OutputTypeEnum; - -int main(int argc, char **argv) -{ - int c, i, verbose; - const char *out_filename, *cname; - char cfilename[1024]; - FILE *fo; - JSRuntime *rt; - JSContext *ctx; - BOOL use_lto; - int module; - OutputTypeEnum output_type; - size_t stack_size; -#ifdef CONFIG_BIGNUM - BOOL bignum_ext = FALSE; -#endif - namelist_t dynamic_module_list; - - out_filename = NULL; - output_type = OUTPUT_EXECUTABLE; - cname = NULL; - feature_bitmap = FE_ALL; - module = -1; - byte_swap = FALSE; - verbose = 0; - use_lto = FALSE; - stack_size = 0; - memset(&dynamic_module_list, 0, sizeof(dynamic_module_list)); - - /* add system modules */ - namelist_add(&cmodule_list, "std", "std", 0); - namelist_add(&cmodule_list, "os", "os", 0); - - for(;;) { - c = getopt(argc, argv, "ho:cN:f:mxevM:p:S:D:"); - if (c == -1) - break; - switch(c) { - case 'h': - help(); - case 'o': - out_filename = optarg; - break; - case 'c': - output_type = OUTPUT_C; - break; - case 'e': - output_type = OUTPUT_C_MAIN; - break; - case 'N': - cname = optarg; - break; - case 'f': - { - const char *p; - p = optarg; - if (!strcmp(optarg, "lto")) { - use_lto = TRUE; - } else if (strstart(p, "no-", &p)) { - use_lto = TRUE; - for(i = 0; i < countof(feature_list); i++) { - if (!strcmp(p, feature_list[i].option_name)) { - feature_bitmap &= ~((uint64_t)1 << i); - break; - } - } - if (i == countof(feature_list)) - goto bad_feature; - } else -#ifdef CONFIG_BIGNUM - if (!strcmp(optarg, "bignum")) { - bignum_ext = TRUE; - } else -#endif - { - bad_feature: - fprintf(stderr, "unsupported feature: %s\n", optarg); - exit(1); - } - } - break; - case 'm': - module = 1; - break; - case 'M': - { - char *p; - char path[1024]; - char cname[1024]; - pstrcpy(path, sizeof(path), optarg); - p = strchr(path, ','); - if (p) { - *p = '\0'; - pstrcpy(cname, sizeof(cname), p + 1); - } else { - get_c_name(cname, sizeof(cname), path); - } - namelist_add(&cmodule_list, path, cname, 0); - } - break; - case 'D': - namelist_add(&dynamic_module_list, optarg, NULL, 0); - break; - case 'x': - byte_swap = TRUE; - break; - case 'v': - verbose++; - break; - case 'p': - c_ident_prefix = optarg; - break; - case 'S': - stack_size = (size_t)strtod(optarg, NULL); - break; - default: - break; - } - } - - if (optind >= argc) - help(); - - if (!out_filename) { - if (output_type == OUTPUT_EXECUTABLE) { - out_filename = "a.out"; - } else { - out_filename = "out.c"; - } - } - - if (output_type == OUTPUT_EXECUTABLE) { -#if defined(_WIN32) || defined(__ANDROID__) - /* XXX: find a /tmp directory ? */ - snprintf(cfilename, sizeof(cfilename), "out%d.c", getpid()); -#else - snprintf(cfilename, sizeof(cfilename), "/tmp/out%d.c", getpid()); -#endif - } else { - pstrcpy(cfilename, sizeof(cfilename), out_filename); - } - - fo = fopen(cfilename, "w"); - if (!fo) { - perror(cfilename); - exit(1); - } - outfile = fo; - - rt = JS_NewRuntime(); - ctx = JS_NewContext(rt); -#ifdef CONFIG_BIGNUM - if (bignum_ext) { - JS_AddIntrinsicBigFloat(ctx); - JS_AddIntrinsicBigDecimal(ctx); - JS_AddIntrinsicOperators(ctx); - JS_EnableBignumExt(ctx, TRUE); - } -#endif - - /* loader for ES6 modules */ - JS_SetModuleLoaderFunc(rt, NULL, jsc_module_loader, NULL); - - fprintf(fo, "/* File generated automatically by the QuickJS compiler. */\n" - "\n" - ); - - if (output_type != OUTPUT_C) { - fprintf(fo, "#include \"quickjs-libc.h\"\n" - "\n" - ); - } else { - fprintf(fo, "#include \n" - "\n" - ); - } - - for(i = optind; i < argc; i++) { - const char *filename = argv[i]; - compile_file(ctx, fo, filename, cname, module); - cname = NULL; - } - - for(i = 0; i < dynamic_module_list.count; i++) { - if (!jsc_module_loader(ctx, dynamic_module_list.array[i].name, NULL)) { - fprintf(stderr, "Could not load dynamic module '%s'\n", - dynamic_module_list.array[i].name); - exit(1); - } - } - - if (output_type != OUTPUT_C) { - fprintf(fo, - "static JSContext *JS_NewCustomContext(JSRuntime *rt)\n" - "{\n" - " JSContext *ctx = JS_NewContextRaw(rt);\n" - " if (!ctx)\n" - " return NULL;\n"); - /* add the basic objects */ - fprintf(fo, " JS_AddIntrinsicBaseObjects(ctx);\n"); - for(i = 0; i < countof(feature_list); i++) { - if ((feature_bitmap & ((uint64_t)1 << i)) && - feature_list[i].init_name) { - fprintf(fo, " JS_AddIntrinsic%s(ctx);\n", - feature_list[i].init_name); - } - } -#ifdef CONFIG_BIGNUM - if (bignum_ext) { - fprintf(fo, - " JS_AddIntrinsicBigFloat(ctx);\n" - " JS_AddIntrinsicBigDecimal(ctx);\n" - " JS_AddIntrinsicOperators(ctx);\n" - " JS_EnableBignumExt(ctx, 1);\n"); - } -#endif - /* add the precompiled modules (XXX: could modify the module - loader instead) */ - for(i = 0; i < init_module_list.count; i++) { - namelist_entry_t *e = &init_module_list.array[i]; - /* initialize the static C modules */ - - fprintf(fo, - " {\n" - " extern JSModuleDef *js_init_module_%s(JSContext *ctx, const char *name);\n" - " js_init_module_%s(ctx, \"%s\");\n" - " }\n", - e->short_name, e->short_name, e->name); - } - for(i = 0; i < cname_list.count; i++) { - namelist_entry_t *e = &cname_list.array[i]; - if (e->flags) { - fprintf(fo, " js_std_eval_binary(ctx, %s, %s_size, 1);\n", - e->name, e->name); - } - } - fprintf(fo, - " return ctx;\n" - "}\n\n"); - - fputs(main_c_template1, fo); - - if (stack_size != 0) { - fprintf(fo, " JS_SetMaxStackSize(rt, %u);\n", - (unsigned int)stack_size); - } - - /* add the module loader if necessary */ - if (feature_bitmap & (1 << FE_MODULE_LOADER)) { - fprintf(fo, " JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL);\n"); - } - - fprintf(fo, - " ctx = JS_NewCustomContext(rt);\n" - " js_std_add_helpers(ctx, argc, argv);\n"); - - for(i = 0; i < cname_list.count; i++) { - namelist_entry_t *e = &cname_list.array[i]; - if (!e->flags) { - fprintf(fo, " js_std_eval_binary(ctx, %s, %s_size, 0);\n", - e->name, e->name); - } - } - fputs(main_c_template2, fo); - } - - JS_FreeContext(ctx); - JS_FreeRuntime(rt); - - fclose(fo); - - if (output_type == OUTPUT_EXECUTABLE) { - return output_executable(out_filename, cfilename, use_lto, verbose, - argv[0]); - } - namelist_free(&cname_list); - namelist_free(&cmodule_list); - namelist_free(&init_module_list); - return 0; -} diff --git a/deps/quickjs/qjscalc.js b/deps/quickjs/qjscalc.js deleted file mode 100644 index b1ad1e89..00000000 --- a/deps/quickjs/qjscalc.js +++ /dev/null @@ -1,2657 +0,0 @@ -/* - * QuickJS Javascript Calculator - * - * Copyright (c) 2017-2020 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -"use strict"; -"use math"; - -var Integer, Float, Fraction, Complex, Mod, Polynomial, PolyMod, RationalFunction, Series, Matrix; - -(function(global) { - global.Integer = global.BigInt; - global.Float = global.BigFloat; - global.algebraicMode = true; - - /* add non enumerable properties */ - function add_props(obj, props) { - var i, val, prop, tab, desc; - tab = Reflect.ownKeys(props); - for(i = 0; i < tab.length; i++) { - prop = tab[i]; - desc = Object.getOwnPropertyDescriptor(props, prop); - desc.enumerable = false; - if ("value" in desc) { - if (typeof desc.value !== "function") { - desc.writable = false; - desc.configurable = false; - } - } else { - /* getter/setter */ - desc.configurable = false; - } - Object.defineProperty(obj, prop, desc); - } - } - - /* same as proto[Symbol.operatorSet] = Operators.create(..op_list) - but allow shortcuts: left: [], right: [] or both - */ - function operators_set(proto, ...op_list) - { - var new_op_list, i, a, j, b, k, obj, tab; - var fields = [ "left", "right" ]; - new_op_list = []; - for(i = 0; i < op_list.length; i++) { - a = op_list[i]; - if (a.left || a.right) { - tab = [ a.left, a.right ]; - delete a.left; - delete a.right; - for(k = 0; k < 2; k++) { - obj = tab[k]; - if (obj) { - if (!Array.isArray(obj)) { - obj = [ obj ]; - } - for(j = 0; j < obj.length; j++) { - b = {}; - Object.assign(b, a); - b[fields[k]] = obj[j]; - new_op_list.push(b); - } - } - } - } else { - new_op_list.push(a); - } - } - proto[Symbol.operatorSet] = - Operators.create.call(null, ...new_op_list); - } - - /* Integer */ - - function generic_pow(a, b) { - var r, is_neg, i; - if (!Integer.isInteger(b)) { - return exp(log(a) * b); - } - if (Array.isArray(a) && !(a instanceof Polynomial || - a instanceof Series)) { - r = idn(Matrix.check_square(a)); - } else { - r = 1; - } - if (b == 0) - return r; - is_neg = false; - if (b < 0) { - is_neg = true; - b = -b; - } - r = a; - for(i = Integer.floorLog2(b) - 1; i >= 0; i--) { - r *= r; - if ((b >> i) & 1) - r *= a; - } - if (is_neg) { - if (typeof r.inverse != "function") - throw "negative powers are not supported for this type"; - r = r.inverse(); - } - return r; - } - - var small_primes = [ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499 ]; - - function miller_rabin_test(n, t) { - var d, r, s, i, j, a; - d = n - 1; - s = 0; - while ((d & 1) == 0) { - d >>= 1; - s++; - } - if (small_primes.length < t) - t = small_primes.length; - loop: for(j = 0; j < t; j++) { - a = small_primes[j]; - r = Integer.pmod(a, d, n); - if (r == 1 || r == (n - 1)) - continue; - for(i = 1; i < s; i++) { - r = (r * r) % n; - if (r == 1) - return false; - if (r == (n - 1)) - continue loop; - } - return false; /* n is composite */ - } - return true; /* n is probably prime with probability (1-0.5^t) */ - } - - function fact_rec(a, b) { /* assumes a <= b */ - var i, r; - if ((b - a) <= 5) { - r = a; - for(i = a + 1; i <= b; i++) - r *= i; - return r; - } else { - /* to avoid a quadratic running time it is better to - multiply numbers of similar size */ - i = (a + b) >> 1; - return fact_rec(a, i) * fact_rec(i + 1, b); - } - } - - /* math mode specific quirk to overload the integer division and power */ - Operators.updateBigIntOperators( - { - "/"(a, b) { - if (algebraicMode) { - return Fraction.toFraction(a, b); - } else { - return Float(a) / Float(b); - } - }, - "**"(a, b) { - if (algebraicMode) { - return generic_pow(a, b); - } else { - return Float(a) ** Float(b); - } - } - }); - - add_props(Integer, { - isInteger(a) { - /* integers are represented either as bigint or as number */ - return typeof a === "bigint" || - (typeof a === "number" && Number.isSafeInteger(a)); - }, - gcd(a, b) { - var r; - while (b != 0) { - r = a % b; - a = b; - b = r; - } - return a; - }, - fact(n) { - return n <= 0 ? 1 : fact_rec(1, n); - }, - /* binomial coefficient */ - comb(n, k) { - if (k < 0 || k > n) - return 0; - if (k > n - k) - k = n - k; - if (k == 0) - return 1; - return Integer.tdiv(fact_rec(n - k + 1, n), fact_rec(1, k)); - }, - /* inverse of x modulo y */ - invmod(x, y) { - var q, u, v, a, c, t; - u = x; - v = y; - c = 1; - a = 0; - while (u != 0) { - t = Integer.fdivrem(v, u); - q = t[0]; - v = u; - u = t[1]; - t = c; - c = a - q * c; - a = t; - } - /* v = gcd(x, y) */ - if (v != 1) - throw RangeError("not invertible"); - return a % y; - }, - /* return a ^ b modulo m */ - pmod(a, b, m) { - var r; - if (b == 0) - return 1; - if (b < 0) { - a = Integer.invmod(a, m); - b = -b; - } - r = 1; - for(;;) { - if (b & 1) { - r = (r * a) % m; - } - b >>= 1; - if (b == 0) - break; - a = (a * a) % m; - } - return r; - }, - - /* return true if n is prime (or probably prime with - probability 1-0.5^t) */ - isPrime(n, t) { - var i, d, n1; - if (!Integer.isInteger(n)) - throw TypeError("invalid type"); - if (n <= 1) - return false; - n1 = small_primes.length; - /* XXX: need Integer.sqrt() */ - for(i = 0; i < n1; i++) { - d = small_primes[i]; - if (d == n) - return true; - if (d > n) - return false; - if ((n % d) == 0) - return false; - } - if (n < d * d) - return true; - if (typeof t == "undefined") - t = 64; - return miller_rabin_test(n, t); - }, - nextPrime(n) { - if (!Integer.isInteger(n)) - throw TypeError("invalid type"); - if (n < 1) - n = 1; - for(;;) { - n++; - if (Integer.isPrime(n)) - return n; - } - }, - factor(n) { - var r, d; - if (!Integer.isInteger(n)) - throw TypeError("invalid type"); - r = []; - if (abs(n) <= 1) { - r.push(n); - return r; - } - if (n < 0) { - r.push(-1); - n = -n; - } - - while ((n % 2) == 0) { - n >>= 1; - r.push(2); - } - - d = 3; - while (n != 1) { - if (Integer.isPrime(n)) { - r.push(n); - break; - } - /* we are sure there is at least one divisor, so one test */ - for(;;) { - if ((n % d) == 0) - break; - d += 2; - } - for(;;) { - r.push(d); - n = Integer.tdiv(n, d); - if ((n % d) != 0) - break; - } - } - return r; - }, - }); - - add_props(Integer.prototype, { - inverse() { - return 1 / this; - }, - norm2() { - return this * this; - }, - abs() { - var v = this; - if (v < 0) - v = -v; - return v; - }, - conj() { - return this; - }, - arg() { - if (this >= 0) - return 0; - else - return Float.PI; - }, - exp() { - if (this == 0) - return 1; - else - return Float.exp(this); - }, - log() { - if (this == 1) - return 0; - else - return Float(this).log(); - }, - }); - - /* Fraction */ - - Fraction = function Fraction(a, b) - { - var d, r, obj; - - if (new.target) - throw TypeError("not a constructor"); - if (a instanceof Fraction) - return a; - if (!Integer.isInteger(a)) - throw TypeError("integer expected"); - if (typeof b === "undefined") { - b = 1; - } else { - if (!Integer.isInteger(b)) - throw TypeError("integer expected"); - if (b == 0) - throw RangeError("division by zero"); - d = Integer.gcd(a, b); - if (d != 1) { - a = Integer.tdiv(a, d); - b = Integer.tdiv(b, d); - } - - /* the fractions are normalized with den > 0 */ - if (b < 0) { - a = -a; - b = -b; - } - } - obj = Object.create(Fraction.prototype); - obj.num = a; - obj.den = b; - return obj; - } - - function fraction_add(a, b) { - a = Fraction(a); - b = Fraction(b); - return Fraction.toFraction(a.num * b.den + a.den * b.num, a.den * b.den); - } - function fraction_sub(a, b) { - a = Fraction(a); - b = Fraction(b); - return Fraction.toFraction(a.num * b.den - a.den * b.num, a.den * b.den); - } - function fraction_mul(a, b) { - a = Fraction(a); - b = Fraction(b); - return Fraction.toFraction(a.num * b.num, a.den * b.den); - } - function fraction_div(a, b) { - a = Fraction(a); - b = Fraction(b); - return Fraction.toFraction(a.num * b.den, a.den * b.num); - } - function fraction_mod(a, b) { - var a1 = Fraction(a); - var b1 = Fraction(b); - return a - Integer.ediv(a1.num * b1.den, a1.den * b1.num) * b; - } - function fraction_eq(a, b) { - a = Fraction(a); - b = Fraction(b); - /* we assume the fractions are normalized */ - return (a.num == b.num && a.den == b.den); - } - function fraction_lt(a, b) { - a = Fraction(a); - b = Fraction(b); - return (a.num * b.den < b.num * a.den); - } - - /* operators are needed for fractions */ - function float_add(a, b) { - return Float(a) + Float(b); - } - function float_sub(a, b) { - return Float(a) - Float(b); - } - function float_mul(a, b) { - return Float(a) * Float(b); - } - function float_div(a, b) { - return Float(a) / Float(b); - } - function float_mod(a, b) { - return Float(a) % Float(b); - } - function float_pow(a, b) { - return Float(a) ** Float(b); - } - function float_eq(a, b) { - /* XXX: may be better to use infinite precision for the comparison */ - return Float(a) === Float(b); - } - function float_lt(a, b) { - a = Float(a); - b = Float(b); - /* XXX: may be better to use infinite precision for the comparison */ - if (Float.isNaN(a) || Float.isNaN(b)) - return undefined; - else - return a < b; - } - - operators_set(Fraction.prototype, - { - "+": fraction_add, - "-": fraction_sub, - "*": fraction_mul, - "/": fraction_div, - "%": fraction_mod, - "**": generic_pow, - "==": fraction_eq, - "<": fraction_lt, - "pos"(a) { - return a; - }, - "neg"(a) { - return Fraction(-a.num, a.den); - }, - }, - { - left: [Number, BigInt], - right: [Number, BigInt], - "+": fraction_add, - "-": fraction_sub, - "*": fraction_mul, - "/": fraction_div, - "%": fraction_mod, - "**": generic_pow, - "==": fraction_eq, - "<": fraction_lt, - }, - { - left: Float, - right: Float, - "+": float_add, - "-": float_sub, - "*": float_mul, - "/": float_div, - "%": float_mod, - "**": float_pow, - "==": float_eq, - "<": float_lt, - }); - - add_props(Fraction, { - /* (internal use) simplify 'a' to an integer when possible */ - toFraction(a, b) { - var r = Fraction(a, b); - if (algebraicMode && r.den == 1) - return r.num; - else - return r; - }, - }); - - add_props(Fraction.prototype, { - [Symbol.toPrimitive](hint) { - if (hint === "string") { - return this.toString(); - } else { - return Float(this.num) / this.den; - } - }, - inverse() { - return Fraction(this.den, this.num); - }, - toString() { - return this.num + "/" + this.den; - }, - norm2() { - return this * this; - }, - abs() { - if (this.num < 0) - return -this; - else - return this; - }, - conj() { - return this; - }, - arg() { - if (this.num >= 0) - return 0; - else - return Float.PI; - }, - exp() { - return Float.exp(Float(this)); - }, - log() { - return Float(this).log(); - }, - }); - - /* Number (Float64) */ - - add_props(Number.prototype, { - inverse() { - return 1 / this; - }, - norm2() { - return this * this; - }, - abs() { - return Math.abs(this); - }, - conj() { - return this; - }, - arg() { - if (this >= 0) - return 0; - else - return Float.PI; - }, - exp() { - return Float.exp(this); - }, - log() { - if (this < 0) { - return Complex(this).log(); - } else { - return Float.log(this); - } - }, - }); - - /* Float */ - - var const_tab = []; - - /* we cache the constants for small precisions */ - function get_const(n) { - var t, c, p; - t = const_tab[n]; - p = BigFloatEnv.prec; - if (t && t.prec == p) { - return t.val; - } else { - switch(n) { - case 0: c = Float.exp(1); break; - case 1: c = Float.log(10); break; -// case 2: c = Float.log(2); break; - case 3: c = 1/Float.log(2); break; - case 4: c = 1/Float.log(10); break; -// case 5: c = Float.atan(1) * 4; break; - case 6: c = Float.sqrt(0.5); break; - case 7: c = Float.sqrt(2); break; - } - if (p <= 1024) { - const_tab[n] = { prec: p, val: c }; - } - return c; - } - } - - add_props(Float, { - isFloat(a) { - return typeof a === "number" || typeof a === "bigfloat"; - }, - bestappr(u, b) { - var num1, num0, den1, den0, u, num, den, n; - - if (typeof b === "undefined") - throw TypeError("second argument expected"); - num1 = 1; - num0 = 0; - den1 = 0; - den0 = 1; - for(;;) { - n = Integer(Float.floor(u)); - num = n * num1 + num0; - den = n * den1 + den0; - if (den > b) - break; - u = 1.0 / (u - n); - num0 = num1; - num1 = num; - den0 = den1; - den1 = den; - } - return Fraction(num1, den1); - }, - /* similar constants as Math.x */ - get E() { return get_const(0); }, - get LN10() { return get_const(1); }, -// get LN2() { return get_const(2); }, - get LOG2E() { return get_const(3); }, - get LOG10E() { return get_const(4); }, -// get PI() { return get_const(5); }, - get SQRT1_2() { return get_const(6); }, - get SQRT2() { return get_const(7); }, - }); - - add_props(Float.prototype, { - inverse() { - return 1.0 / this; - }, - norm2() { - return this * this; - }, - abs() { - return Float.abs(this); - }, - conj() { - return this; - }, - arg() { - if (this >= 0) - return 0; - else - return Float.PI; - }, - exp() { - return Float.exp(this); - }, - log() { - if (this < 0) { - return Complex(this).log(); - } else { - return Float.log(this); - } - }, - }); - - /* Complex */ - - Complex = function Complex(re, im) - { - var obj; - if (new.target) - throw TypeError("not a constructor"); - if (re instanceof Complex) - return re; - if (typeof im === "undefined") { - im = 0; - } - obj = Object.create(Complex.prototype); - obj.re = re; - obj.im = im; - return obj; - } - - - function complex_add(a, b) { - a = Complex(a); - b = Complex(b); - return Complex.toComplex(a.re + b.re, a.im + b.im); - } - function complex_sub(a, b) { - a = Complex(a); - b = Complex(b); - return Complex.toComplex(a.re - b.re, a.im - b.im); - } - function complex_mul(a, b) { - a = Complex(a); - b = Complex(b); - return Complex.toComplex(a.re * b.re - a.im * b.im, - a.re * b.im + a.im * b.re); - } - function complex_div(a, b) { - a = Complex(a); - b = Complex(b); - return a * b.inverse(); - } - function complex_eq(a, b) { - a = Complex(a); - b = Complex(b); - return a.re == b.re && a.im == b.im; - } - - operators_set(Complex.prototype, - { - "+": complex_add, - "-": complex_sub, - "*": complex_mul, - "/": complex_div, - "**": generic_pow, - "==": complex_eq, - "pos"(a) { - return a; - }, - "neg"(a) { - return Complex(-a.re, -a.im); - } - }, - { - left: [Number, BigInt, Float, Fraction], - right: [Number, BigInt, Float, Fraction], - "+": complex_add, - "-": complex_sub, - "*": complex_mul, - "/": complex_div, - "**": generic_pow, - "==": complex_eq, - }); - - add_props(Complex, { - /* simplify to real number when possible */ - toComplex(re, im) { - if (algebraicMode && im == 0) - return re; - else - return Complex(re, im); - }, - }); - - add_props(Complex.prototype, { - inverse() { - var c = this.norm2(); - return Complex(this.re / c, -this.im / c); - }, - toString() { - var v, s = "", a = this; - if (a.re != 0) - s += a.re.toString(); - if (a.im == 1) { - if (s != "") - s += "+"; - s += "I"; - } else if (a.im == -1) { - s += "-I"; - } else { - v = a.im.toString(); - if (v[0] != "-" && s != "") - s += "+"; - s += v + "*I"; - } - return s; - }, - norm2() { - return this.re * this.re + this.im * this.im; - }, - abs() { - return Float.sqrt(norm2(this)); - }, - conj() { - return Complex(this.re, -this.im); - }, - arg() { - return Float.atan2(this.im, this.re); - }, - exp() { - var arg = this.im, r = this.re.exp(); - return Complex(r * cos(arg), r * sin(arg)); - }, - log() { - return Complex(abs(this).log(), atan2(this.im, this.re)); - }, - }); - - /* Mod */ - - Mod = function Mod(a, m) { - var obj, t; - if (new.target) - throw TypeError("not a constructor"); - obj = Object.create(Mod.prototype); - if (Integer.isInteger(m)) { - if (m <= 0) - throw RangeError("the modulo cannot be <= 0"); - if (Integer.isInteger(a)) { - a %= m; - } else if (a instanceof Fraction) { - return Mod(a.num, m) / a.den; - } else { - throw TypeError("invalid types"); - } - } else { - throw TypeError("invalid types"); - } - obj.res = a; - obj.mod = m; - return obj; - }; - - function mod_add(a, b) { - if (!(a instanceof Mod)) { - return Mod(a + b.res, b.mod); - } else if (!(b instanceof Mod)) { - return Mod(a.res + b, a.mod); - } else { - if (a.mod != b.mod) - throw TypeError("different modulo for binary operator"); - return Mod(a.res + b.res, a.mod); - } - } - function mod_sub(a, b) { - if (!(a instanceof Mod)) { - return Mod(a - b.res, b.mod); - } else if (!(b instanceof Mod)) { - return Mod(a.res - b, a.mod); - } else { - if (a.mod != b.mod) - throw TypeError("different modulo for binary operator"); - return Mod(a.res - b.res, a.mod); - } - } - function mod_mul(a, b) { - if (!(a instanceof Mod)) { - return Mod(a * b.res, b.mod); - } else if (!(b instanceof Mod)) { - return Mod(a.res * b, a.mod); - } else { - if (a.mod != b.mod) - throw TypeError("different modulo for binary operator"); - return Mod(a.res * b.res, a.mod); - } - } - function mod_div(a, b) { - if (!(b instanceof Mod)) - b = Mod(b, a.mod); - return mod_mul(a, b.inverse()); - } - function mod_eq(a, b) { - return (a.mod == b.mod && a.res == b.res); - } - - operators_set(Mod.prototype, - { - "+": mod_add, - "-": mod_sub, - "*": mod_mul, - "/": mod_div, - "**": generic_pow, - "==": mod_eq, - "pos"(a) { - return a; - }, - "neg"(a) { - return Mod(-a.res, a.mod); - } - }, - { - left: [Number, BigInt, Float, Fraction], - right: [Number, BigInt, Float, Fraction], - "+": mod_add, - "-": mod_sub, - "*": mod_mul, - "/": mod_div, - "**": generic_pow, - }); - - add_props(Mod.prototype, { - inverse() { - var a = this, m = a.mod; - if (Integer.isInteger(m)) { - return Mod(Integer.invmod(a.res, m), m); - } else { - throw TypeError("unsupported type"); - } - }, - toString() { - return "Mod(" + this.res + "," + this.mod + ")"; - }, - }); - - /* Polynomial */ - - function polynomial_is_scalar(a) - { - if (typeof a === "number" || - typeof a === "bigint" || - typeof a === "bigfloat") - return true; - if (a instanceof Fraction || - a instanceof Complex || - a instanceof Mod) - return true; - return false; - } - - Polynomial = function Polynomial(a) - { - if (new.target) - throw TypeError("not a constructor"); - if (a instanceof Polynomial) { - return a; - } else if (Array.isArray(a)) { - if (a.length == 0) - a = [ 0 ]; - Object.setPrototypeOf(a, Polynomial.prototype); - return a.trim(); - } else if (polynomial_is_scalar(a)) { - a = [a]; - Object.setPrototypeOf(a, Polynomial.prototype); - return a; - } else { - throw TypeError("invalid type"); - } - } - - function number_need_paren(c) - { - return !(Integer.isInteger(c) || - Float.isFloat(c) || - c instanceof Fraction || - (c instanceof Complex && c.re == 0)); - } - - /* string for c*X^i */ - function monomial_toString(c, i) - { - var str1; - if (i == 0) { - str1 = c.toString(); - } else { - if (c == 1) { - str1 = ""; - } else if (c == -1) { - str1 = "-"; - } else { - if (number_need_paren(c)) { - str1 = "(" + c + ")"; - } else { - str1 = String(c); - } - str1 += "*"; - } - str1 += "X"; - if (i != 1) { - str1 += "^" + i; - } - } - return str1; - } - - /* find one complex root of 'p' starting from z at precision eps using - at most max_it iterations. Return null if could not find root. */ - function poly_root_laguerre1(p, z, max_it) - { - var p1, p2, i, z0, z1, z2, d, t0, t1, d1, d2, e, el, zl; - - d = p.deg(); - if (d == 1) { - /* monomial case */ - return -p[0] / p[1]; - } - /* trivial zero */ - if (p[0] == 0) - return 0.0; - - p1 = p.deriv(); - p2 = p1.deriv(); - el = 0.0; - zl = 0.0; - for(i = 0; i < max_it; i++) { - z0 = p.apply(z); - if (z0 == 0) - return z; /* simple exit case */ - - /* Ward stopping criteria */ - e = abs(z - zl); -// print("e", i, e); - if (i >= 2 && e >= el) { - if (abs(zl) < 1e-4) { - if (e < 1e-7) - return zl; - } else { - if (e < abs(zl) * 1e-3) - return zl; - } - } - el = e; - zl = z; - - z1 = p1.apply(z); - z2 = p2.apply(z); - t0 = (d - 1) * z1; - t0 = t0 * t0; - t1 = d * (d - 1) * z0 * z2; - t0 = sqrt(t0 - t1); - d1 = z1 + t0; - d2 = z1 - t0; - if (norm2(d2) > norm2(d1)) - d1 = d2; - if (d1 == 0) - return null; - z = z - d * z0 / d1; - } - return null; - } - - function poly_roots(p) - { - var d, i, roots, j, z, eps; - var start_points = [ 0.1, -1.4, 1.7 ]; - - if (!(p instanceof Polynomial)) - throw TypeError("polynomial expected"); - d = p.deg(); - if (d <= 0) - return []; - eps = 2.0 ^ (-BigFloatEnv.prec); - roots = []; - for(i = 0; i < d; i++) { - /* XXX: should select another start point if error */ - for(j = 0; j < 3; j++) { - z = poly_root_laguerre1(p, start_points[j], 100); - if (z !== null) - break; - } - if (j == 3) - throw RangeError("error in root finding algorithm"); - roots[i] = z; - p = Polynomial.divrem(p, X - z)[0]; - } - return roots; - } - - add_props(Polynomial.prototype, { - trim() { - var a = this, i; - i = a.length; - while (i > 1 && a[i - 1] == 0) - i--; - a.length = i; - return a; - }, - conj() { - var r, i, n, a; - a = this; - n = a.length; - r = []; - for(i = 0; i < n; i++) - r[i] = a[i].conj(); - return Polynomial(r); - }, - inverse() { - return RationalFunction(Polynomial([1]), this); - }, - toString() { - var i, str, str1, c, a = this; - if (a.length == 1) { - return a[0].toString(); - } - str=""; - for(i = a.length - 1; i >= 0; i--) { - c = a[i]; - if (c == 0 || - (c instanceof Mod) && c.res == 0) - continue; - str1 = monomial_toString(c, i); - if (str1[0] != "-") { - if (str != "") - str += "+"; - } - str += str1; - } - return str; - }, - deg() { - if (this.length == 1 && this[0] == 0) - return -Infinity; - else - return this.length - 1; - }, - apply(b) { - var i, n, r, a = this; - n = a.length - 1; - r = a[n]; - while (n > 0) { - n--; - r = r * b + a[n]; - } - return r; - }, - deriv() { - var a = this, n, r, i; - n = a.length; - if (n == 1) { - return Polynomial(0); - } else { - r = []; - for(i = 1; i < n; i++) { - r[i - 1] = i * a[i]; - } - return Polynomial(r); - } - }, - integ() { - var a = this, n, r, i; - n = a.length; - r = [0]; - for(i = 0; i < n; i++) { - r[i + 1] = a[i] / (i + 1); - } - return Polynomial(r); - }, - norm2() { - var a = this, n, r, i; - n = a.length; - r = 0; - for(i = 0; i < n; i++) { - r += a[i].norm2(); - } - return r; - }, - }); - - - function polynomial_add(a, b) { - var tmp, r, i, n1, n2; - a = Polynomial(a); - b = Polynomial(b); - if (a.length < b.length) { - tmp = a; - a = b; - b = tmp; - } - n1 = b.length; - n2 = a.length; - r = []; - for(i = 0; i < n1; i++) - r[i] = a[i] + b[i]; - for(i = n1; i < n2; i++) - r[i] = a[i]; - return Polynomial(r); - } - function polynomial_sub(a, b) { - return polynomial_add(a, -b); - } - function polynomial_mul(a, b) { - var i, j, n1, n2, n, r; - a = Polynomial(a); - b = Polynomial(b); - n1 = a.length; - n2 = b.length; - n = n1 + n2 - 1; - r = []; - for(i = 0; i < n; i++) - r[i] = 0; - for(i = 0; i < n1; i++) { - for(j = 0; j < n2; j++) { - r[i + j] += a[i] * b[j]; - } - } - return Polynomial(r); - } - function polynomial_div_scalar(a, b) { - return a * (1 / b); - } - function polynomial_div(a, b) - { - return RationalFunction(Polynomial(a), - Polynomial(b)); - } - function polynomial_mod(a, b) { - return Polynomial.divrem(a, b)[1]; - } - function polynomial_eq(a, b) { - var n, i; - n = a.length; - if (n != b.length) - return false; - for(i = 0; i < n; i++) { - if (a[i] != b[i]) - return false; - } - return true; - } - - operators_set(Polynomial.prototype, - { - "+": polynomial_add, - "-": polynomial_sub, - "*": polynomial_mul, - "/": polynomial_div, - "**": generic_pow, - "==": polynomial_eq, - "pos"(a) { - return a; - }, - "neg"(a) { - var r, i, n, a; - n = a.length; - r = []; - for(i = 0; i < n; i++) - r[i] = -a[i]; - return Polynomial(r); - }, - }, - { - left: [Number, BigInt, Float, Fraction, Complex, Mod], - "+": polynomial_add, - "-": polynomial_sub, - "*": polynomial_mul, - "/": polynomial_div, - "**": generic_pow, /* XXX: only for integer */ - }, - { - right: [Number, BigInt, Float, Fraction, Complex, Mod], - "+": polynomial_add, - "-": polynomial_sub, - "*": polynomial_mul, - "/": polynomial_div_scalar, - "**": generic_pow, /* XXX: only for integer */ - }); - - add_props(Polynomial, { - divrem(a, b) { - var n1, n2, i, j, q, r, n, c; - if (b.deg() < 0) - throw RangeError("division by zero"); - n1 = a.length; - n2 = b.length; - if (n1 < n2) - return [Polynomial([0]), a]; - r = Array.prototype.dup.call(a); - q = []; - n2--; - n = n1 - n2; - for(i = 0; i < n; i++) - q[i] = 0; - for(i = n - 1; i >= 0; i--) { - c = r[i + n2]; - if (c != 0) { - c = c / b[n2]; - r[i + n2] = 0; - for(j = 0; j < n2; j++) { - r[i + j] -= b[j] * c; - } - q[i] = c; - } - } - return [Polynomial(q), Polynomial(r)]; - }, - gcd(a, b) { - var t; - while (b.deg() >= 0) { - t = Polynomial.divrem(a, b); - a = b; - b = t[1]; - } - /* convert to monic form */ - return a / a[a.length - 1]; - }, - invmod(x, y) { - var q, u, v, a, c, t; - u = x; - v = y; - c = Polynomial([1]); - a = Polynomial([0]); - while (u.deg() >= 0) { - t = Polynomial.divrem(v, u); - q = t[0]; - v = u; - u = t[1]; - t = c; - c = a - q * c; - a = t; - } - /* v = gcd(x, y) */ - if (v.deg() > 0) - throw RangeError("not invertible"); - return Polynomial.divrem(a, y)[1]; - }, - roots(p) { - return poly_roots(p); - } - }); - - /* Polynomial Modulo Q */ - - PolyMod = function PolyMod(a, m) { - var obj, t; - if (new.target) - throw TypeError("not a constructor"); - obj = Object.create(PolyMod.prototype); - if (m instanceof Polynomial) { - if (m.deg() <= 0) - throw RangeError("the modulo cannot have a degree <= 0"); - if (a instanceof RationalFunction) { - return PolyMod(a.num, m) / a.den; - } else { - a = Polynomial(a); - t = Polynomial.divrem(a, m); - a = t[1]; - } - } else { - throw TypeError("invalid types"); - } - obj.res = a; - obj.mod = m; - return obj; - }; - - function polymod_add(a, b) { - if (!(a instanceof PolyMod)) { - return PolyMod(a + b.res, b.mod); - } else if (!(b instanceof PolyMod)) { - return PolyMod(a.res + b, a.mod); - } else { - if (a.mod != b.mod) - throw TypeError("different modulo for binary operator"); - return PolyMod(a.res + b.res, a.mod); - } - } - function polymod_sub(a, b) { - return polymod_add(a, -b); - } - function polymod_mul(a, b) { - if (!(a instanceof PolyMod)) { - return PolyMod(a * b.res, b.mod); - } else if (!(b instanceof PolyMod)) { - return PolyMod(a.res * b, a.mod); - } else { - if (a.mod != b.mod) - throw TypeError("different modulo for binary operator"); - return PolyMod(a.res * b.res, a.mod); - } - } - function polymod_div(a, b) { - if (!(b instanceof PolyMod)) - b = PolyMod(b, a.mod); - return polymod_mul(a, b.inverse()); - } - function polymod_eq(a, b) { - return (a.mod == b.mod && a.res == b.res); - } - - operators_set(PolyMod.prototype, - { - "+": polymod_add, - "-": polymod_sub, - "*": polymod_mul, - "/": polymod_div, - "**": generic_pow, - "==": polymod_eq, - "pos"(a) { - return a; - }, - "neg"(a) { - return PolyMod(-a.res, a.mod); - }, - }, - { - left: [Number, BigInt, Float, Fraction, Complex, Mod, Polynomial], - right: [Number, BigInt, Float, Fraction, Complex, Mod, Polynomial], - "+": polymod_add, - "-": polymod_sub, - "*": polymod_mul, - "/": polymod_div, - "**": generic_pow, /* XXX: only for integer */ - }); - - add_props(PolyMod.prototype, { - inverse() { - var a = this, m = a.mod; - if (m instanceof Polynomial) { - return PolyMod(Polynomial.invmod(a.res, m), m); - } else { - throw TypeError("unsupported type"); - } - }, - toString() { - return "PolyMod(" + this.res + "," + this.mod + ")"; - }, - }); - - /* Rational function */ - - RationalFunction = function RationalFunction(a, b) - { - var t, r, d, obj; - if (new.target) - throw TypeError("not a constructor"); - if (!(a instanceof Polynomial) || - !(b instanceof Polynomial)) - throw TypeError("polynomial expected"); - t = Polynomial.divrem(a, b); - r = t[1]; - if (r.deg() < 0) - return t[0]; /* no need for a fraction */ - d = Polynomial.gcd(b, r); - if (d.deg() > 0) { - a = Polynomial.divrem(a, d)[0]; - b = Polynomial.divrem(b, d)[0]; - } - obj = Object.create(RationalFunction.prototype); - obj.num = a; - obj.den = b; - return obj; - } - - add_props(RationalFunction.prototype, { - inverse() { - return RationalFunction(this.den, this.num); - }, - conj() { - return RationalFunction(this.num.conj(), this.den.conj()); - }, - toString() { - var str; - if (this.num.deg() <= 0 && - !number_need_paren(this.num[0])) - str = this.num.toString(); - else - str = "(" + this.num.toString() + ")"; - str += "/(" + this.den.toString() + ")" - return str; - }, - apply(b) { - return this.num.apply(b) / this.den.apply(b); - }, - deriv() { - var n = this.num, d = this.den; - return RationalFunction(n.deriv() * d - n * d.deriv(), d * d); - }, - }); - - function ratfunc_add(a, b) { - a = RationalFunction.toRationalFunction(a); - b = RationalFunction.toRationalFunction(b); - return RationalFunction(a.num * b.den + a.den * b.num, a.den * b.den); - } - function ratfunc_sub(a, b) { - a = RationalFunction.toRationalFunction(a); - b = RationalFunction.toRationalFunction(b); - return RationalFunction(a.num * b.den - a.den * b.num, a.den * b.den); - } - function ratfunc_mul(a, b) { - a = RationalFunction.toRationalFunction(a); - b = RationalFunction.toRationalFunction(b); - return RationalFunction(a.num * b.num, a.den * b.den); - } - function ratfunc_div(a, b) { - a = RationalFunction.toRationalFunction(a); - b = RationalFunction.toRationalFunction(b); - return RationalFunction(a.num * b.den, a.den * b.num); - } - function ratfunc_eq(a, b) { - a = RationalFunction.toRationalFunction(a); - b = RationalFunction.toRationalFunction(b); - /* we assume the fractions are normalized */ - return (a.num == b.num && a.den == b.den); - } - - operators_set(RationalFunction.prototype, - { - "+": ratfunc_add, - "-": ratfunc_sub, - "*": ratfunc_mul, - "/": ratfunc_div, - "**": generic_pow, - "==": ratfunc_eq, - "pos"(a) { - return a; - }, - "neg"(a) { - return RationalFunction(-this.num, this.den); - }, - }, - { - left: [Number, BigInt, Float, Fraction, Complex, Mod, Polynomial], - right: [Number, BigInt, Float, Fraction, Complex, Mod, Polynomial], - "+": ratfunc_add, - "-": ratfunc_sub, - "*": ratfunc_mul, - "/": ratfunc_div, - "**": generic_pow, /* should only be used with integers */ - }); - - add_props(RationalFunction, { - /* This function always return a RationalFunction object even - if it could simplified to a polynomial, so it is not - equivalent to RationalFunction(a) */ - toRationalFunction(a) { - var obj; - if (a instanceof RationalFunction) { - return a; - } else { - obj = Object.create(RationalFunction.prototype); - obj.num = Polynomial(a); - obj.den = Polynomial(1); - return obj; - } - }, - }); - - /* Power series */ - - /* 'a' is an array */ - function get_emin(a) { - var i, n; - n = a.length; - for(i = 0; i < n; i++) { - if (a[i] != 0) - return i; - } - return n; - }; - - function series_is_scalar_or_polynomial(a) - { - return polynomial_is_scalar(a) || - (a instanceof Polynomial); - } - - /* n is the maximum number of terms if 'a' is not a serie */ - Series = function Series(a, n) { - var emin, r, i; - - if (a instanceof Series) { - return a; - } else if (series_is_scalar_or_polynomial(a)) { - if (n <= 0) { - /* XXX: should still use the polynomial degree */ - return Series.zero(0, 0); - } else { - a = Polynomial(a); - emin = get_emin(a); - r = Series.zero(n, emin); - n = Math.min(a.length - emin, n); - for(i = 0; i < n; i++) - r[i] = a[i + emin]; - return r; - } - } else if (a instanceof RationalFunction) { - return Series(a.num, n) / a.den; - } else { - throw TypeError("invalid type"); - } - }; - - function series_add(v1, v2) { - var tmp, d, emin, n, r, i, j, v2_emin, c1, c2; - if (!(v1 instanceof Series)) { - tmp = v1; - v1 = v2; - v2 = tmp; - } - d = v1.emin + v1.length; - if (series_is_scalar_or_polynomial(v2)) { - v2 = Polynomial(v2); - if (d <= 0) - return v1; - v2_emin = 0; - } else if (v2 instanceof RationalFunction) { - /* compute the emin of the rational fonction */ - i = get_emin(v2.num) - get_emin(v2.den); - if (d <= i) - return v1; - /* compute the serie with the required terms */ - v2 = Series(v2, d - i); - v2_emin = v2.emin; - } else { - v2_emin = v2.emin; - d = Math.min(d, v2_emin + v2.length); - } - emin = Math.min(v1.emin, v2_emin); - n = d - emin; - r = Series.zero(n, emin); - /* XXX: slow */ - for(i = emin; i < d; i++) { - j = i - v1.emin; - if (j >= 0 && j < v1.length) - c1 = v1[j]; - else - c1 = 0; - j = i - v2_emin; - if (j >= 0 && j < v2.length) - c2 = v2[j]; - else - c2 = 0; - r[i - emin] = c1 + c2; - } - return r.trim(); - } - function series_sub(a, b) { - return series_add(a, -b); - } - function series_mul(v1, v2) { - var n, i, j, r, n, emin, n1, n2, k; - if (!(v1 instanceof Series)) - v1 = Series(v1, v2.length); - else if (!(v2 instanceof Series)) - v2 = Series(v2, v1.length); - emin = v1.emin + v2.emin; - n = Math.min(v1.length, v2.length); - n1 = v1.length; - n2 = v2.length; - r = Series.zero(n, emin); - for(i = 0; i < n1; i++) { - k = Math.min(n2, n - i); - for(j = 0; j < k; j++) { - r[i + j] += v1[i] * v2[j]; - } - } - return r.trim(); - } - function series_div(v1, v2) { - if (!(v2 instanceof Series)) - v2 = Series(v2, v1.length); - return series_mul(v1, v2.inverse()); - } - function series_pow(a, b) { - if (Integer.isInteger(b)) { - return generic_pow(a, b); - } else { - if (!(a instanceof Series)) - a = Series(a, b.length); - return exp(log(a) * b); - } - } - function series_eq(a, b) { - var n, i; - if (a.emin != b.emin) - return false; - n = a.length; - if (n != b.length) - return false; - for(i = 0; i < n; i++) { - if (a[i] != b[i]) - return false; - } - return true; - } - - operators_set(Series.prototype, - { - "+": series_add, - "-": series_sub, - "*": series_mul, - "/": series_div, - "**": series_pow, - "==": series_eq, - "pos"(a) { - return a; - }, - "neg"(a) { - var obj, n, i; - n = a.length; - obj = Series.zero(a.length, a.emin); - for(i = 0; i < n; i++) { - obj[i] = -a[i]; - } - return obj; - }, - }, - { - left: [Number, BigInt, Float, Fraction, Complex, Mod, Polynomial], - right: [Number, BigInt, Float, Fraction, Complex, Mod, Polynomial], - "+": series_add, - "-": series_sub, - "*": series_mul, - "/": series_div, - "**": series_pow, - }); - - add_props(Series.prototype, { - conj() { - var obj, n, i; - n = this.length; - obj = Series.zero(this.length, this.emin); - for(i = 0; i < n; i++) { - obj[i] = this[i].conj(); - } - return obj; - }, - inverse() { - var r, n, i, j, sum, v1 = this; - n = v1.length; - if (n == 0) - throw RangeError("division by zero"); - r = Series.zero(n, -v1.emin); - r[0] = 1 / v1[0]; - for(i = 1; i < n; i++) { - sum = 0; - for(j = 1; j <= i; j++) { - sum += v1[j] * r[i - j]; - } - r[i] = -sum * r[0]; - } - return r; - }, - /* remove leading zero terms */ - trim() { - var i, j, n, r, v1 = this; - n = v1.length; - i = 0; - while (i < n && v1[i] == 0) - i++; - if (i == 0) - return v1; - for(j = i; j < n; j++) - v1[j - i] = v1[j]; - v1.length = n - i; - v1.__proto__.emin += i; - return v1; - }, - toString() { - var i, j, str, str1, c, a = this, emin, n; - str=""; - emin = this.emin; - n = this.length; - for(j = 0; j < n; j++) { - i = j + emin; - c = a[j]; - if (c != 0) { - str1 = monomial_toString(c, i); - if (str1[0] != "-") { - if (str != "") - str += "+"; - } - str += str1; - } - } - if (str != "") - str += "+"; - str += "O(" + monomial_toString(1, n + emin) + ")"; - return str; - }, - apply(b) { - var i, n, r, a = this; - n = a.length; - if (n == 0) - return 0; - r = a[--n]; - while (n > 0) { - n--; - r = r * b + a[n]; - } - if (a.emin != 0) - r *= b ^ a.emin; - return r; - }, - deriv() { - var a = this, n = a.length, emin = a.emin, r, i, j; - if (n == 0 && emin == 0) { - return Series.zero(0, 0); - } else { - r = Series.zero(n, emin - 1); - for(i = 0; i < n; i++) { - j = emin + i; - if (j == 0) - r[i] = 0; - else - r[i] = j * a[i]; - } - return r.trim(); - } - }, - integ() { - var a = this, n = a.length, emin = a.emin, i, j, r; - r = Series.zero(n, emin + 1); - for(i = 0; i < n; i++) { - j = emin + i; - if (j == -1) { - if (a[i] != 0) - throw RangeError("cannot represent integ(1/X)"); - } else { - r[i] = a[i] / (j + 1); - } - } - return r.trim(); - }, - exp() { - var c, i, r, n, a = this; - if (a.emin < 0) - throw RangeError("negative exponent in exp"); - n = a.emin + a.length; - if (a.emin > 0 || a[0] == 0) { - c = 1; - } else { - c = global.exp(a[0]); - a -= a[0]; - } - r = Series.zero(n, 0); - for(i = 0; i < n; i++) { - r[i] = c / fact(i); - } - return r.apply(a); - }, - log() { - var a = this, r; - if (a.emin != 0) - throw RangeError("log argument must have a non zero constant term"); - r = integ(deriv(a) / a); - /* add the constant term */ - r += global.log(a[0]); - return r; - }, - }); - - add_props(Series, { - /* new series of length n and first exponent emin */ - zero(n, emin) { - var r, i, obj; - - r = []; - for(i = 0; i < n; i++) - r[i] = 0; - /* we return an array and store emin in its prototype */ - obj = Object.create(Series.prototype); - obj.emin = emin; - Object.setPrototypeOf(r, obj); - return r; - }, - O(a) { - function ErrorO() { - return TypeError("invalid O() argument"); - } - var n; - if (series_is_scalar_or_polynomial(a)) { - a = Polynomial(a); - n = a.deg(); - if (n < 0) - throw ErrorO(); - } else if (a instanceof RationalFunction) { - if (a.num.deg() != 0) - throw ErrorO(); - n = a.den.deg(); - if (n < 0) - throw ErrorO(); - n = -n; - } else - throw ErrorO(); - return Series.zero(0, n); - }, - }); - - /* Array (Matrix) */ - - Matrix = function Matrix(h, w) { - var i, j, r, rl; - if (typeof w === "undefined") - w = h; - r = []; - for(i = 0; i < h; i++) { - rl = []; - for(j = 0; j < w; j++) - rl[j] = 0; - r[i] = rl; - } - return r; - }; - - add_props(Matrix, { - idn(n) { - var r, i; - r = Matrix(n, n); - for(i = 0; i < n; i++) - r[i][i] = 1; - return r; - }, - diag(a) { - var r, i, n; - n = a.length; - r = Matrix(n, n); - for(i = 0; i < n; i++) - r[i][i] = a[i]; - return r; - }, - hilbert(n) { - var i, j, r; - r = Matrix(n); - for(i = 0; i < n; i++) { - for(j = 0; j < n; j++) { - r[i][j] = 1 / (1 + i + j); - } - } - return r; - }, - trans(a) { - var h, w, r, i, j; - if (!Array.isArray(a)) - throw TypeError("matrix expected"); - h = a.length; - if (!Array.isArray(a[0])) { - w = 1; - r = Matrix(w, h); - for(i = 0; i < h; i++) { - r[0][i] = a[i]; - } - } else { - w = a[0].length; - r = Matrix(w, h); - for(i = 0; i < h; i++) { - for(j = 0; j < w; j++) { - r[j][i] = a[i][j]; - } - } - } - return r; - }, - check_square(a) { - var a, n; - if (!Array.isArray(a)) - throw TypeError("array expected"); - n = a.length; - if (!Array.isArray(a[0]) || n != a[0].length) - throw TypeError("square matrix expected"); - return n; - }, - trace(a) { - var n, r, i; - n = Matrix.check_square(a); - r = a[0][0]; - for(i = 1; i < n; i++) { - r += a[i][i]; - } - return r; - }, - charpoly(a) { - var n, p, c, i, j, coef; - n = Matrix.check_square(a); - p = []; - for(i = 0; i < n + 1; i++) - p[i] = 0; - p[n] = 1; - c = Matrix.idn(n); - for(i = 0; i < n; i++) { - c = c * a; - coef = -trace(c) / (i + 1); - p[n - i - 1] = coef; - for(j = 0; j < n; j++) - c[j][j] += coef; - } - return Polynomial(p); - }, - eigenvals(a) { - return Polynomial.roots(Matrix.charpoly(a)); - }, - det(a) { - var n, i, j, k, s, src, v, c; - - n = Matrix.check_square(a); - s = 1; - src = a.dup(); - for(i=0;i") -DEF(_ret_, "") -DEF(_var_, "") -DEF(_arg_var_, "") -DEF(_with_, "") -DEF(lastIndex, "lastIndex") -DEF(target, "target") -DEF(index, "index") -DEF(input, "input") -DEF(defineProperties, "defineProperties") -DEF(apply, "apply") -DEF(join, "join") -DEF(concat, "concat") -DEF(split, "split") -DEF(construct, "construct") -DEF(getPrototypeOf, "getPrototypeOf") -DEF(setPrototypeOf, "setPrototypeOf") -DEF(isExtensible, "isExtensible") -DEF(preventExtensions, "preventExtensions") -DEF(has, "has") -DEF(deleteProperty, "deleteProperty") -DEF(defineProperty, "defineProperty") -DEF(getOwnPropertyDescriptor, "getOwnPropertyDescriptor") -DEF(ownKeys, "ownKeys") -DEF(add, "add") -DEF(done, "done") -DEF(next, "next") -DEF(values, "values") -DEF(source, "source") -DEF(flags, "flags") -DEF(global, "global") -DEF(unicode, "unicode") -DEF(raw, "raw") -DEF(new_target, "new.target") -DEF(this_active_func, "this.active_func") -DEF(home_object, "") -DEF(computed_field, "") -DEF(static_computed_field, "") /* must come after computed_fields */ -DEF(class_fields_init, "") -DEF(brand, "") -DEF(hash_constructor, "#constructor") -DEF(as, "as") -DEF(from, "from") -DEF(meta, "meta") -DEF(_default_, "*default*") -DEF(_star_, "*") -DEF(Module, "Module") -DEF(then, "then") -DEF(resolve, "resolve") -DEF(reject, "reject") -DEF(promise, "promise") -DEF(proxy, "proxy") -DEF(revoke, "revoke") -DEF(async, "async") -DEF(exec, "exec") -DEF(groups, "groups") -DEF(indices, "indices") -DEF(status, "status") -DEF(reason, "reason") -DEF(globalThis, "globalThis") -DEF(bigint, "bigint") -#ifdef CONFIG_BIGNUM -DEF(bigfloat, "bigfloat") -DEF(bigdecimal, "bigdecimal") -DEF(roundingMode, "roundingMode") -DEF(maximumSignificantDigits, "maximumSignificantDigits") -DEF(maximumFractionDigits, "maximumFractionDigits") -#endif -/* the following 3 atoms are only used with CONFIG_ATOMICS */ -DEF(not_equal, "not-equal") -DEF(timed_out, "timed-out") -DEF(ok, "ok") -/* */ -DEF(toJSON, "toJSON") -/* class names */ -DEF(Object, "Object") -DEF(Array, "Array") -DEF(Error, "Error") -DEF(Number, "Number") -DEF(String, "String") -DEF(Boolean, "Boolean") -DEF(Symbol, "Symbol") -DEF(Arguments, "Arguments") -DEF(Math, "Math") -DEF(JSON, "JSON") -DEF(Date, "Date") -DEF(Function, "Function") -DEF(GeneratorFunction, "GeneratorFunction") -DEF(ForInIterator, "ForInIterator") -DEF(RegExp, "RegExp") -DEF(ArrayBuffer, "ArrayBuffer") -DEF(SharedArrayBuffer, "SharedArrayBuffer") -/* must keep same order as class IDs for typed arrays */ -DEF(Uint8ClampedArray, "Uint8ClampedArray") -DEF(Int8Array, "Int8Array") -DEF(Uint8Array, "Uint8Array") -DEF(Int16Array, "Int16Array") -DEF(Uint16Array, "Uint16Array") -DEF(Int32Array, "Int32Array") -DEF(Uint32Array, "Uint32Array") -DEF(BigInt64Array, "BigInt64Array") -DEF(BigUint64Array, "BigUint64Array") -DEF(Float32Array, "Float32Array") -DEF(Float64Array, "Float64Array") -DEF(DataView, "DataView") -DEF(BigInt, "BigInt") -#ifdef CONFIG_BIGNUM -DEF(BigFloat, "BigFloat") -DEF(BigFloatEnv, "BigFloatEnv") -DEF(BigDecimal, "BigDecimal") -DEF(OperatorSet, "OperatorSet") -DEF(Operators, "Operators") -#endif -DEF(Map, "Map") -DEF(Set, "Set") /* Map + 1 */ -DEF(WeakMap, "WeakMap") /* Map + 2 */ -DEF(WeakSet, "WeakSet") /* Map + 3 */ -DEF(Map_Iterator, "Map Iterator") -DEF(Set_Iterator, "Set Iterator") -DEF(Array_Iterator, "Array Iterator") -DEF(String_Iterator, "String Iterator") -DEF(RegExp_String_Iterator, "RegExp String Iterator") -DEF(Generator, "Generator") -DEF(Proxy, "Proxy") -DEF(Promise, "Promise") -DEF(PromiseResolveFunction, "PromiseResolveFunction") -DEF(PromiseRejectFunction, "PromiseRejectFunction") -DEF(AsyncFunction, "AsyncFunction") -DEF(AsyncFunctionResolve, "AsyncFunctionResolve") -DEF(AsyncFunctionReject, "AsyncFunctionReject") -DEF(AsyncGeneratorFunction, "AsyncGeneratorFunction") -DEF(AsyncGenerator, "AsyncGenerator") -DEF(EvalError, "EvalError") -DEF(RangeError, "RangeError") -DEF(ReferenceError, "ReferenceError") -DEF(SyntaxError, "SyntaxError") -DEF(TypeError, "TypeError") -DEF(URIError, "URIError") -DEF(InternalError, "InternalError") -/* private symbols */ -DEF(Private_brand, "") -/* symbols */ -DEF(Symbol_toPrimitive, "Symbol.toPrimitive") -DEF(Symbol_iterator, "Symbol.iterator") -DEF(Symbol_match, "Symbol.match") -DEF(Symbol_matchAll, "Symbol.matchAll") -DEF(Symbol_replace, "Symbol.replace") -DEF(Symbol_search, "Symbol.search") -DEF(Symbol_split, "Symbol.split") -DEF(Symbol_toStringTag, "Symbol.toStringTag") -DEF(Symbol_isConcatSpreadable, "Symbol.isConcatSpreadable") -DEF(Symbol_hasInstance, "Symbol.hasInstance") -DEF(Symbol_species, "Symbol.species") -DEF(Symbol_unscopables, "Symbol.unscopables") -DEF(Symbol_asyncIterator, "Symbol.asyncIterator") -#ifdef CONFIG_BIGNUM -DEF(Symbol_operatorSet, "Symbol.operatorSet") -#endif - -#endif /* DEF */ diff --git a/deps/quickjs/quickjs-libc.c b/deps/quickjs/quickjs-libc.c deleted file mode 100644 index d4f4d671..00000000 --- a/deps/quickjs/quickjs-libc.c +++ /dev/null @@ -1,3999 +0,0 @@ -/* - * QuickJS C library - * - * Copyright (c) 2017-2021 Fabrice Bellard - * Copyright (c) 2017-2021 Charlie Gordon - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#if defined(_WIN32) -#include -#include -#include -#else -#include -#include -#include -#include - -#if defined(__APPLE__) -typedef sig_t sighandler_t; -#if !defined(environ) -#include -#define environ (*_NSGetEnviron()) -#endif -#endif /* __APPLE__ */ - -#endif - -#if !defined(_WIN32) -/* enable the os.Worker API. IT relies on POSIX threads */ -#define USE_WORKER -#endif - -#ifdef USE_WORKER -#include -#include -#endif - -#include "cutils.h" -#include "list.h" -#include "quickjs-libc.h" - -/* TODO: - - add socket calls -*/ - -typedef struct { - struct list_head link; - int fd; - JSValue rw_func[2]; -} JSOSRWHandler; - -typedef struct { - struct list_head link; - int sig_num; - JSValue func; -} JSOSSignalHandler; - -typedef struct { - struct list_head link; - BOOL has_object; - int64_t timeout; - JSValue func; -} JSOSTimer; - -typedef struct { - struct list_head link; - uint8_t *data; - size_t data_len; - /* list of SharedArrayBuffers, necessary to free the message */ - uint8_t **sab_tab; - size_t sab_tab_len; -} JSWorkerMessage; - -typedef struct { - int ref_count; -#ifdef USE_WORKER - pthread_mutex_t mutex; -#endif - struct list_head msg_queue; /* list of JSWorkerMessage.link */ - int read_fd; - int write_fd; -} JSWorkerMessagePipe; - -typedef struct { - struct list_head link; - JSWorkerMessagePipe *recv_pipe; - JSValue on_message_func; -} JSWorkerMessageHandler; - -typedef struct JSThreadState { - struct list_head os_rw_handlers; /* list of JSOSRWHandler.link */ - struct list_head os_signal_handlers; /* list JSOSSignalHandler.link */ - struct list_head os_timers; /* list of JSOSTimer.link */ - struct list_head port_list; /* list of JSWorkerMessageHandler.link */ - int eval_script_recurse; /* only used in the main thread */ - /* not used in the main thread */ - JSWorkerMessagePipe *recv_pipe, *send_pipe; -} JSThreadState; - -static uint64_t os_pending_signals; -static int (*os_poll_func)(JSContext *ctx); - -static void js_std_dbuf_init(JSContext *ctx, DynBuf *s) -{ - dbuf_init2(s, JS_GetRuntime(ctx), (DynBufReallocFunc *)js_realloc_rt); -} - -static BOOL my_isdigit(int c) -{ - return (c >= '0' && c <= '9'); -} - -static JSValue js_printf_internal(JSContext *ctx, - int argc, JSValueConst *argv, FILE *fp) -{ - char fmtbuf[32]; - uint8_t cbuf[UTF8_CHAR_LEN_MAX+1]; - JSValue res; - DynBuf dbuf; - const char *fmt_str; - const uint8_t *fmt, *fmt_end; - const uint8_t *p; - char *q; - int i, c, len, mod; - size_t fmt_len; - int32_t int32_arg; - int64_t int64_arg; - double double_arg; - const char *string_arg; - /* Use indirect call to dbuf_printf to prevent gcc warning */ - int (*dbuf_printf_fun)(DynBuf *s, const char *fmt, ...) = (void*)dbuf_printf; - - js_std_dbuf_init(ctx, &dbuf); - - if (argc > 0) { - fmt_str = JS_ToCStringLen(ctx, &fmt_len, argv[0]); - if (!fmt_str) - goto fail; - - i = 1; - fmt = (const uint8_t *)fmt_str; - fmt_end = fmt + fmt_len; - while (fmt < fmt_end) { - for (p = fmt; fmt < fmt_end && *fmt != '%'; fmt++) - continue; - dbuf_put(&dbuf, p, fmt - p); - if (fmt >= fmt_end) - break; - q = fmtbuf; - *q++ = *fmt++; /* copy '%' */ - - /* flags */ - for(;;) { - c = *fmt; - if (c == '0' || c == '#' || c == '+' || c == '-' || c == ' ' || - c == '\'') { - if (q >= fmtbuf + sizeof(fmtbuf) - 1) - goto invalid; - *q++ = c; - fmt++; - } else { - break; - } - } - /* width */ - if (*fmt == '*') { - if (i >= argc) - goto missing; - if (JS_ToInt32(ctx, &int32_arg, argv[i++])) - goto fail; - q += snprintf(q, fmtbuf + sizeof(fmtbuf) - q, "%d", int32_arg); - fmt++; - } else { - while (my_isdigit(*fmt)) { - if (q >= fmtbuf + sizeof(fmtbuf) - 1) - goto invalid; - *q++ = *fmt++; - } - } - if (*fmt == '.') { - if (q >= fmtbuf + sizeof(fmtbuf) - 1) - goto invalid; - *q++ = *fmt++; - if (*fmt == '*') { - if (i >= argc) - goto missing; - if (JS_ToInt32(ctx, &int32_arg, argv[i++])) - goto fail; - q += snprintf(q, fmtbuf + sizeof(fmtbuf) - q, "%d", int32_arg); - fmt++; - } else { - while (my_isdigit(*fmt)) { - if (q >= fmtbuf + sizeof(fmtbuf) - 1) - goto invalid; - *q++ = *fmt++; - } - } - } - - /* we only support the "l" modifier for 64 bit numbers */ - mod = ' '; - if (*fmt == 'l') { - mod = *fmt++; - } - - /* type */ - c = *fmt++; - if (q >= fmtbuf + sizeof(fmtbuf) - 1) - goto invalid; - *q++ = c; - *q = '\0'; - - switch (c) { - case 'c': - if (i >= argc) - goto missing; - if (JS_IsString(argv[i])) { - string_arg = JS_ToCString(ctx, argv[i++]); - if (!string_arg) - goto fail; - int32_arg = unicode_from_utf8((uint8_t *)string_arg, UTF8_CHAR_LEN_MAX, &p); - JS_FreeCString(ctx, string_arg); - } else { - if (JS_ToInt32(ctx, &int32_arg, argv[i++])) - goto fail; - } - /* handle utf-8 encoding explicitly */ - if ((unsigned)int32_arg > 0x10FFFF) - int32_arg = 0xFFFD; - /* ignore conversion flags, width and precision */ - len = unicode_to_utf8(cbuf, int32_arg); - dbuf_put(&dbuf, cbuf, len); - break; - - case 'd': - case 'i': - case 'o': - case 'u': - case 'x': - case 'X': - if (i >= argc) - goto missing; - if (JS_ToInt64Ext(ctx, &int64_arg, argv[i++])) - goto fail; - if (mod == 'l') { - /* 64 bit number */ -#if defined(_WIN32) - if (q >= fmtbuf + sizeof(fmtbuf) - 3) - goto invalid; - q[2] = q[-1]; - q[-1] = 'I'; - q[0] = '6'; - q[1] = '4'; - q[3] = '\0'; - dbuf_printf_fun(&dbuf, fmtbuf, (int64_t)int64_arg); -#else - if (q >= fmtbuf + sizeof(fmtbuf) - 2) - goto invalid; - q[1] = q[-1]; - q[-1] = q[0] = 'l'; - q[2] = '\0'; - dbuf_printf_fun(&dbuf, fmtbuf, (long long)int64_arg); -#endif - } else { - dbuf_printf_fun(&dbuf, fmtbuf, (int)int64_arg); - } - break; - - case 's': - if (i >= argc) - goto missing; - /* XXX: handle strings containing null characters */ - string_arg = JS_ToCString(ctx, argv[i++]); - if (!string_arg) - goto fail; - dbuf_printf_fun(&dbuf, fmtbuf, string_arg); - JS_FreeCString(ctx, string_arg); - break; - - case 'e': - case 'f': - case 'g': - case 'a': - case 'E': - case 'F': - case 'G': - case 'A': - if (i >= argc) - goto missing; - if (JS_ToFloat64(ctx, &double_arg, argv[i++])) - goto fail; - dbuf_printf_fun(&dbuf, fmtbuf, double_arg); - break; - - case '%': - dbuf_putc(&dbuf, '%'); - break; - - default: - /* XXX: should support an extension mechanism */ - invalid: - JS_ThrowTypeError(ctx, "invalid conversion specifier in format string"); - goto fail; - missing: - JS_ThrowReferenceError(ctx, "missing argument for conversion specifier"); - goto fail; - } - } - JS_FreeCString(ctx, fmt_str); - } - if (dbuf.error) { - res = JS_ThrowOutOfMemory(ctx); - } else { - if (fp) { - len = fwrite(dbuf.buf, 1, dbuf.size, fp); - res = JS_NewInt32(ctx, len); - } else { - res = JS_NewStringLen(ctx, (char *)dbuf.buf, dbuf.size); - } - } - dbuf_free(&dbuf); - return res; - -fail: - dbuf_free(&dbuf); - return JS_EXCEPTION; -} - -uint8_t *js_load_file(JSContext *ctx, size_t *pbuf_len, const char *filename) -{ - FILE *f; - uint8_t *buf; - size_t buf_len; - long lret; - - f = fopen(filename, "rb"); - if (!f) - return NULL; - if (fseek(f, 0, SEEK_END) < 0) - goto fail; - lret = ftell(f); - if (lret < 0) - goto fail; - /* XXX: on Linux, ftell() return LONG_MAX for directories */ - if (lret == LONG_MAX) { - errno = EISDIR; - goto fail; - } - buf_len = lret; - if (fseek(f, 0, SEEK_SET) < 0) - goto fail; - if (ctx) - buf = js_malloc(ctx, buf_len + 1); - else - buf = malloc(buf_len + 1); - if (!buf) - goto fail; - if (fread(buf, 1, buf_len, f) != buf_len) { - errno = EIO; - if (ctx) - js_free(ctx, buf); - else - free(buf); - fail: - fclose(f); - return NULL; - } - buf[buf_len] = '\0'; - fclose(f); - *pbuf_len = buf_len; - return buf; -} - -/* load and evaluate a file */ -static JSValue js_loadScript(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - uint8_t *buf; - const char *filename; - JSValue ret; - size_t buf_len; - - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - return JS_EXCEPTION; - buf = js_load_file(ctx, &buf_len, filename); - if (!buf) { - JS_ThrowReferenceError(ctx, "could not load '%s'", filename); - JS_FreeCString(ctx, filename); - return JS_EXCEPTION; - } - ret = JS_Eval(ctx, (char *)buf, buf_len, filename, - JS_EVAL_TYPE_GLOBAL); - js_free(ctx, buf); - JS_FreeCString(ctx, filename); - return ret; -} - -/* load a file as a UTF-8 encoded string */ -static JSValue js_std_loadFile(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - uint8_t *buf; - const char *filename; - JSValue ret; - size_t buf_len; - - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - return JS_EXCEPTION; - buf = js_load_file(ctx, &buf_len, filename); - JS_FreeCString(ctx, filename); - if (!buf) - return JS_NULL; - ret = JS_NewStringLen(ctx, (char *)buf, buf_len); - js_free(ctx, buf); - return ret; -} - -typedef JSModuleDef *(JSInitModuleFunc)(JSContext *ctx, - const char *module_name); - - -#if defined(_WIN32) -static JSModuleDef *js_module_loader_so(JSContext *ctx, - const char *module_name) -{ - JS_ThrowReferenceError(ctx, "shared library modules are not supported yet"); - return NULL; -} -#else -static JSModuleDef *js_module_loader_so(JSContext *ctx, - const char *module_name) -{ - JSModuleDef *m; - void *hd; - JSInitModuleFunc *init; - char *filename; - - if (!strchr(module_name, '/')) { - /* must add a '/' so that the DLL is not searched in the - system library paths */ - filename = js_malloc(ctx, strlen(module_name) + 2 + 1); - if (!filename) - return NULL; - strcpy(filename, "./"); - strcpy(filename + 2, module_name); - } else { - filename = (char *)module_name; - } - - /* C module */ - hd = dlopen(filename, RTLD_NOW | RTLD_LOCAL); - if (filename != module_name) - js_free(ctx, filename); - if (!hd) { - JS_ThrowReferenceError(ctx, "could not load module filename '%s' as shared library", - module_name); - goto fail; - } - - init = dlsym(hd, "js_init_module"); - if (!init) { - JS_ThrowReferenceError(ctx, "could not load module filename '%s': js_init_module not found", - module_name); - goto fail; - } - - m = init(ctx, module_name); - if (!m) { - JS_ThrowReferenceError(ctx, "could not load module filename '%s': initialization error", - module_name); - fail: - if (hd) - dlclose(hd); - return NULL; - } - return m; -} -#endif /* !_WIN32 */ - -int js_module_set_import_meta(JSContext *ctx, JSValueConst func_val, - JS_BOOL use_realpath, JS_BOOL is_main) -{ - JSModuleDef *m; - char buf[PATH_MAX + 16]; - JSValue meta_obj; - JSAtom module_name_atom; - const char *module_name; - - assert(JS_VALUE_GET_TAG(func_val) == JS_TAG_MODULE); - m = JS_VALUE_GET_PTR(func_val); - - module_name_atom = JS_GetModuleName(ctx, m); - module_name = JS_AtomToCString(ctx, module_name_atom); - JS_FreeAtom(ctx, module_name_atom); - if (!module_name) - return -1; - if (!strchr(module_name, ':')) { - strcpy(buf, "file://"); -#if !defined(_WIN32) - /* realpath() cannot be used with modules compiled with qjsc - because the corresponding module source code is not - necessarily present */ - if (use_realpath) { - char *res = realpath(module_name, buf + strlen(buf)); - if (!res) { - JS_ThrowTypeError(ctx, "realpath failure"); - JS_FreeCString(ctx, module_name); - return -1; - } - } else -#endif - { - pstrcat(buf, sizeof(buf), module_name); - } - } else { - pstrcpy(buf, sizeof(buf), module_name); - } - JS_FreeCString(ctx, module_name); - - meta_obj = JS_GetImportMeta(ctx, m); - if (JS_IsException(meta_obj)) - return -1; - JS_DefinePropertyValueStr(ctx, meta_obj, "url", - JS_NewString(ctx, buf), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, meta_obj, "main", - JS_NewBool(ctx, is_main), - JS_PROP_C_W_E); - JS_FreeValue(ctx, meta_obj); - return 0; -} - -JSModuleDef *js_module_loader(JSContext *ctx, - const char *module_name, void *opaque) -{ - JSModuleDef *m; - - if (has_suffix(module_name, ".so")) { - m = js_module_loader_so(ctx, module_name); - } else { - size_t buf_len; - uint8_t *buf; - JSValue func_val; - - buf = js_load_file(ctx, &buf_len, module_name); - if (!buf) { - JS_ThrowReferenceError(ctx, "could not load module filename '%s'", - module_name); - return NULL; - } - - /* compile the module */ - func_val = JS_Eval(ctx, (char *)buf, buf_len, module_name, - JS_EVAL_TYPE_MODULE | JS_EVAL_FLAG_COMPILE_ONLY); - js_free(ctx, buf); - if (JS_IsException(func_val)) - return NULL; - /* XXX: could propagate the exception */ - js_module_set_import_meta(ctx, func_val, TRUE, FALSE); - /* the module is already referenced, so we must free it */ - m = JS_VALUE_GET_PTR(func_val); - JS_FreeValue(ctx, func_val); - } - return m; -} - -static JSValue js_std_exit(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int status; - if (JS_ToInt32(ctx, &status, argv[0])) - status = -1; - exit(status); - return JS_UNDEFINED; -} - -static JSValue js_std_getenv(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *name, *str; - name = JS_ToCString(ctx, argv[0]); - if (!name) - return JS_EXCEPTION; - str = getenv(name); - JS_FreeCString(ctx, name); - if (!str) - return JS_UNDEFINED; - else - return JS_NewString(ctx, str); -} - -#if defined(_WIN32) -static void setenv(const char *name, const char *value, int overwrite) -{ - char *str; - size_t name_len, value_len; - name_len = strlen(name); - value_len = strlen(value); - str = malloc(name_len + 1 + value_len + 1); - memcpy(str, name, name_len); - str[name_len] = '='; - memcpy(str + name_len + 1, value, value_len); - str[name_len + 1 + value_len] = '\0'; - _putenv(str); - free(str); -} - -static void unsetenv(const char *name) -{ - setenv(name, "", TRUE); -} -#endif /* _WIN32 */ - -static JSValue js_std_setenv(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *name, *value; - name = JS_ToCString(ctx, argv[0]); - if (!name) - return JS_EXCEPTION; - value = JS_ToCString(ctx, argv[1]); - if (!value) { - JS_FreeCString(ctx, name); - return JS_EXCEPTION; - } - setenv(name, value, TRUE); - JS_FreeCString(ctx, name); - JS_FreeCString(ctx, value); - return JS_UNDEFINED; -} - -static JSValue js_std_unsetenv(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *name; - name = JS_ToCString(ctx, argv[0]); - if (!name) - return JS_EXCEPTION; - unsetenv(name); - JS_FreeCString(ctx, name); - return JS_UNDEFINED; -} - -/* return an object containing the list of the available environment - variables. */ -static JSValue js_std_getenviron(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - char **envp; - const char *name, *p, *value; - JSValue obj; - uint32_t idx; - size_t name_len; - JSAtom atom; - int ret; - - obj = JS_NewObject(ctx); - if (JS_IsException(obj)) - return JS_EXCEPTION; - envp = environ; - for(idx = 0; envp[idx] != NULL; idx++) { - name = envp[idx]; - p = strchr(name, '='); - name_len = p - name; - if (!p) - continue; - value = p + 1; - atom = JS_NewAtomLen(ctx, name, name_len); - if (atom == JS_ATOM_NULL) - goto fail; - ret = JS_DefinePropertyValue(ctx, obj, atom, JS_NewString(ctx, value), - JS_PROP_C_W_E); - JS_FreeAtom(ctx, atom); - if (ret < 0) - goto fail; - } - return obj; - fail: - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; -} - -static JSValue js_std_gc(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JS_RunGC(JS_GetRuntime(ctx)); - return JS_UNDEFINED; -} - -static int interrupt_handler(JSRuntime *rt, void *opaque) -{ - return (os_pending_signals >> SIGINT) & 1; -} - -static int get_bool_option(JSContext *ctx, BOOL *pbool, - JSValueConst obj, - const char *option) -{ - JSValue val; - val = JS_GetPropertyStr(ctx, obj, option); - if (JS_IsException(val)) - return -1; - if (!JS_IsUndefined(val)) { - *pbool = JS_ToBool(ctx, val); - } - JS_FreeValue(ctx, val); - return 0; -} - -static JSValue js_evalScript(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - const char *str; - size_t len; - JSValue ret; - JSValueConst options_obj; - BOOL backtrace_barrier = FALSE; - BOOL is_async = FALSE; - int flags; - - if (argc >= 2) { - options_obj = argv[1]; - if (get_bool_option(ctx, &backtrace_barrier, options_obj, - "backtrace_barrier")) - return JS_EXCEPTION; - if (get_bool_option(ctx, &is_async, options_obj, - "async")) - return JS_EXCEPTION; - } - - str = JS_ToCStringLen(ctx, &len, argv[0]); - if (!str) - return JS_EXCEPTION; - if (!ts->recv_pipe && ++ts->eval_script_recurse == 1) { - /* install the interrupt handler */ - JS_SetInterruptHandler(JS_GetRuntime(ctx), interrupt_handler, NULL); - } - flags = JS_EVAL_TYPE_GLOBAL; - if (backtrace_barrier) - flags |= JS_EVAL_FLAG_BACKTRACE_BARRIER; - if (is_async) - flags |= JS_EVAL_FLAG_ASYNC; - ret = JS_Eval(ctx, str, len, "", flags); - JS_FreeCString(ctx, str); - if (!ts->recv_pipe && --ts->eval_script_recurse == 0) { - /* remove the interrupt handler */ - JS_SetInterruptHandler(JS_GetRuntime(ctx), NULL, NULL); - os_pending_signals &= ~((uint64_t)1 << SIGINT); - /* convert the uncatchable "interrupted" error into a normal error - so that it can be caught by the REPL */ - if (JS_IsException(ret)) - JS_ResetUncatchableError(ctx); - } - return ret; -} - -static JSClassID js_std_file_class_id; - -typedef struct { - FILE *f; - BOOL close_in_finalizer; - BOOL is_popen; -} JSSTDFile; - -static void js_std_file_finalizer(JSRuntime *rt, JSValue val) -{ - JSSTDFile *s = JS_GetOpaque(val, js_std_file_class_id); - if (s) { - if (s->f && s->close_in_finalizer) { - if (s->is_popen) - pclose(s->f); - else - fclose(s->f); - } - js_free_rt(rt, s); - } -} - -static ssize_t js_get_errno(ssize_t ret) -{ - if (ret == -1) - ret = -errno; - return ret; -} - -static JSValue js_std_strerror(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int err; - if (JS_ToInt32(ctx, &err, argv[0])) - return JS_EXCEPTION; - return JS_NewString(ctx, strerror(err)); -} - -static JSValue js_std_parseExtJSON(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSValue obj; - const char *str; - size_t len; - - str = JS_ToCStringLen(ctx, &len, argv[0]); - if (!str) - return JS_EXCEPTION; - obj = JS_ParseJSON2(ctx, str, len, "", JS_PARSE_JSON_EXT); - JS_FreeCString(ctx, str); - return obj; -} - -static JSValue js_new_std_file(JSContext *ctx, FILE *f, - BOOL close_in_finalizer, - BOOL is_popen) -{ - JSSTDFile *s; - JSValue obj; - obj = JS_NewObjectClass(ctx, js_std_file_class_id); - if (JS_IsException(obj)) - return obj; - s = js_mallocz(ctx, sizeof(*s)); - if (!s) { - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; - } - s->close_in_finalizer = close_in_finalizer; - s->is_popen = is_popen; - s->f = f; - JS_SetOpaque(obj, s); - return obj; -} - -static void js_set_error_object(JSContext *ctx, JSValue obj, int err) -{ - if (!JS_IsUndefined(obj)) { - JS_SetPropertyStr(ctx, obj, "errno", JS_NewInt32(ctx, err)); - } -} - -static JSValue js_std_open(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *filename, *mode = NULL; - FILE *f; - int err; - - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - goto fail; - mode = JS_ToCString(ctx, argv[1]); - if (!mode) - goto fail; - if (mode[strspn(mode, "rwa+b")] != '\0') { - JS_ThrowTypeError(ctx, "invalid file mode"); - goto fail; - } - - f = fopen(filename, mode); - if (!f) - err = errno; - else - err = 0; - if (argc >= 3) - js_set_error_object(ctx, argv[2], err); - JS_FreeCString(ctx, filename); - JS_FreeCString(ctx, mode); - if (!f) - return JS_NULL; - return js_new_std_file(ctx, f, TRUE, FALSE); - fail: - JS_FreeCString(ctx, filename); - JS_FreeCString(ctx, mode); - return JS_EXCEPTION; -} - -static JSValue js_std_popen(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *filename, *mode = NULL; - FILE *f; - int err; - - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - goto fail; - mode = JS_ToCString(ctx, argv[1]); - if (!mode) - goto fail; - if (mode[strspn(mode, "rw")] != '\0') { - JS_ThrowTypeError(ctx, "invalid file mode"); - goto fail; - } - - f = popen(filename, mode); - if (!f) - err = errno; - else - err = 0; - if (argc >= 3) - js_set_error_object(ctx, argv[2], err); - JS_FreeCString(ctx, filename); - JS_FreeCString(ctx, mode); - if (!f) - return JS_NULL; - return js_new_std_file(ctx, f, TRUE, TRUE); - fail: - JS_FreeCString(ctx, filename); - JS_FreeCString(ctx, mode); - return JS_EXCEPTION; -} - -static JSValue js_std_fdopen(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *mode; - FILE *f; - int fd, err; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - mode = JS_ToCString(ctx, argv[1]); - if (!mode) - goto fail; - if (mode[strspn(mode, "rwa+")] != '\0') { - JS_ThrowTypeError(ctx, "invalid file mode"); - goto fail; - } - - f = fdopen(fd, mode); - if (!f) - err = errno; - else - err = 0; - if (argc >= 3) - js_set_error_object(ctx, argv[2], err); - JS_FreeCString(ctx, mode); - if (!f) - return JS_NULL; - return js_new_std_file(ctx, f, TRUE, FALSE); - fail: - JS_FreeCString(ctx, mode); - return JS_EXCEPTION; -} - -static JSValue js_std_tmpfile(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f; - f = tmpfile(); - if (argc >= 1) - js_set_error_object(ctx, argv[0], f ? 0 : errno); - if (!f) - return JS_NULL; - return js_new_std_file(ctx, f, TRUE, FALSE); -} - -static JSValue js_std_sprintf(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - return js_printf_internal(ctx, argc, argv, NULL); -} - -static JSValue js_std_printf(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - return js_printf_internal(ctx, argc, argv, stdout); -} - -static FILE *js_std_file_get(JSContext *ctx, JSValueConst obj) -{ - JSSTDFile *s = JS_GetOpaque2(ctx, obj, js_std_file_class_id); - if (!s) - return NULL; - if (!s->f) { - JS_ThrowTypeError(ctx, "invalid file handle"); - return NULL; - } - return s->f; -} - -static JSValue js_std_file_puts(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic) -{ - FILE *f; - int i; - const char *str; - size_t len; - - if (magic == 0) { - f = stdout; - } else { - f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - } - - for(i = 0; i < argc; i++) { - str = JS_ToCStringLen(ctx, &len, argv[i]); - if (!str) - return JS_EXCEPTION; - fwrite(str, 1, len, f); - JS_FreeCString(ctx, str); - } - return JS_UNDEFINED; -} - -static JSValue js_std_file_close(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSSTDFile *s = JS_GetOpaque2(ctx, this_val, js_std_file_class_id); - int err; - if (!s) - return JS_EXCEPTION; - if (!s->f) - return JS_ThrowTypeError(ctx, "invalid file handle"); - if (s->is_popen) - err = js_get_errno(pclose(s->f)); - else - err = js_get_errno(fclose(s->f)); - s->f = NULL; - return JS_NewInt32(ctx, err); -} - -static JSValue js_std_file_printf(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - return js_printf_internal(ctx, argc, argv, f); -} - -static JSValue js_std_file_flush(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - fflush(f); - return JS_UNDEFINED; -} - -static JSValue js_std_file_tell(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int is_bigint) -{ - FILE *f = js_std_file_get(ctx, this_val); - int64_t pos; - if (!f) - return JS_EXCEPTION; -#if defined(__linux__) - pos = ftello(f); -#else - pos = ftell(f); -#endif - if (is_bigint) - return JS_NewBigInt64(ctx, pos); - else - return JS_NewInt64(ctx, pos); -} - -static JSValue js_std_file_seek(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - int64_t pos; - int whence, ret; - if (!f) - return JS_EXCEPTION; - if (JS_ToInt64Ext(ctx, &pos, argv[0])) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &whence, argv[1])) - return JS_EXCEPTION; -#if defined(__linux__) - ret = fseeko(f, pos, whence); -#else - ret = fseek(f, pos, whence); -#endif - if (ret < 0) - ret = -errno; - return JS_NewInt32(ctx, ret); -} - -static JSValue js_std_file_eof(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - return JS_NewBool(ctx, feof(f)); -} - -static JSValue js_std_file_error(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - return JS_NewBool(ctx, ferror(f)); -} - -static JSValue js_std_file_clearerr(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - clearerr(f); - return JS_UNDEFINED; -} - -static JSValue js_std_file_fileno(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - return JS_NewInt32(ctx, fileno(f)); -} - -static JSValue js_std_file_read_write(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic) -{ - FILE *f = js_std_file_get(ctx, this_val); - uint64_t pos, len; - size_t size, ret; - uint8_t *buf; - - if (!f) - return JS_EXCEPTION; - if (JS_ToIndex(ctx, &pos, argv[1])) - return JS_EXCEPTION; - if (JS_ToIndex(ctx, &len, argv[2])) - return JS_EXCEPTION; - buf = JS_GetArrayBuffer(ctx, &size, argv[0]); - if (!buf) - return JS_EXCEPTION; - if (pos + len > size) - return JS_ThrowRangeError(ctx, "read/write array buffer overflow"); - if (magic) - ret = fwrite(buf + pos, 1, len, f); - else - ret = fread(buf + pos, 1, len, f); - return JS_NewInt64(ctx, ret); -} - -/* XXX: could use less memory and go faster */ -static JSValue js_std_file_getline(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - int c; - DynBuf dbuf; - JSValue obj; - - if (!f) - return JS_EXCEPTION; - - js_std_dbuf_init(ctx, &dbuf); - for(;;) { - c = fgetc(f); - if (c == EOF) { - if (dbuf.size == 0) { - /* EOF */ - dbuf_free(&dbuf); - return JS_NULL; - } else { - break; - } - } - if (c == '\n') - break; - if (dbuf_putc(&dbuf, c)) { - dbuf_free(&dbuf); - return JS_ThrowOutOfMemory(ctx); - } - } - obj = JS_NewStringLen(ctx, (const char *)dbuf.buf, dbuf.size); - dbuf_free(&dbuf); - return obj; -} - -/* XXX: could use less memory and go faster */ -static JSValue js_std_file_readAsString(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - int c; - DynBuf dbuf; - JSValue obj; - uint64_t max_size64; - size_t max_size; - JSValueConst max_size_val; - - if (!f) - return JS_EXCEPTION; - - if (argc >= 1) - max_size_val = argv[0]; - else - max_size_val = JS_UNDEFINED; - max_size = (size_t)-1; - if (!JS_IsUndefined(max_size_val)) { - if (JS_ToIndex(ctx, &max_size64, max_size_val)) - return JS_EXCEPTION; - if (max_size64 < max_size) - max_size = max_size64; - } - - js_std_dbuf_init(ctx, &dbuf); - while (max_size != 0) { - c = fgetc(f); - if (c == EOF) - break; - if (dbuf_putc(&dbuf, c)) { - dbuf_free(&dbuf); - return JS_EXCEPTION; - } - max_size--; - } - obj = JS_NewStringLen(ctx, (const char *)dbuf.buf, dbuf.size); - dbuf_free(&dbuf); - return obj; -} - -static JSValue js_std_file_getByte(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - if (!f) - return JS_EXCEPTION; - return JS_NewInt32(ctx, fgetc(f)); -} - -static JSValue js_std_file_putByte(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - FILE *f = js_std_file_get(ctx, this_val); - int c; - if (!f) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &c, argv[0])) - return JS_EXCEPTION; - c = fputc(c, f); - return JS_NewInt32(ctx, c); -} - -/* urlGet */ - -#define URL_GET_PROGRAM "curl -s -i" -#define URL_GET_BUF_SIZE 4096 - -static int http_get_header_line(FILE *f, char *buf, size_t buf_size, - DynBuf *dbuf) -{ - int c; - char *p; - - p = buf; - for(;;) { - c = fgetc(f); - if (c < 0) - return -1; - if ((p - buf) < buf_size - 1) - *p++ = c; - if (dbuf) - dbuf_putc(dbuf, c); - if (c == '\n') - break; - } - *p = '\0'; - return 0; -} - -static int http_get_status(const char *buf) -{ - const char *p = buf; - while (*p != ' ' && *p != '\0') - p++; - if (*p != ' ') - return 0; - while (*p == ' ') - p++; - return atoi(p); -} - -static JSValue js_std_urlGet(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *url; - DynBuf cmd_buf; - DynBuf data_buf_s, *data_buf = &data_buf_s; - DynBuf header_buf_s, *header_buf = &header_buf_s; - char *buf; - size_t i, len; - int c, status; - JSValue response = JS_UNDEFINED, ret_obj; - JSValueConst options_obj; - FILE *f; - BOOL binary_flag, full_flag; - - url = JS_ToCString(ctx, argv[0]); - if (!url) - return JS_EXCEPTION; - - binary_flag = FALSE; - full_flag = FALSE; - - if (argc >= 2) { - options_obj = argv[1]; - - if (get_bool_option(ctx, &binary_flag, options_obj, "binary")) - goto fail_obj; - - if (get_bool_option(ctx, &full_flag, options_obj, "full")) { - fail_obj: - JS_FreeCString(ctx, url); - return JS_EXCEPTION; - } - } - - js_std_dbuf_init(ctx, &cmd_buf); - dbuf_printf(&cmd_buf, "%s ''", URL_GET_PROGRAM); - len = strlen(url); - for(i = 0; i < len; i++) { - c = url[i]; - if (c == '\'' || c == '\\') - dbuf_putc(&cmd_buf, '\\'); - dbuf_putc(&cmd_buf, c); - } - JS_FreeCString(ctx, url); - dbuf_putstr(&cmd_buf, "''"); - dbuf_putc(&cmd_buf, '\0'); - if (dbuf_error(&cmd_buf)) { - dbuf_free(&cmd_buf); - return JS_EXCEPTION; - } - // printf("%s\n", (char *)cmd_buf.buf); - f = popen((char *)cmd_buf.buf, "r"); - dbuf_free(&cmd_buf); - if (!f) { - return JS_ThrowTypeError(ctx, "could not start curl"); - } - - js_std_dbuf_init(ctx, data_buf); - js_std_dbuf_init(ctx, header_buf); - - buf = js_malloc(ctx, URL_GET_BUF_SIZE); - if (!buf) - goto fail; - - /* get the HTTP status */ - if (http_get_header_line(f, buf, URL_GET_BUF_SIZE, NULL) < 0) { - status = 0; - goto bad_header; - } - status = http_get_status(buf); - if (!full_flag && !(status >= 200 && status <= 299)) { - goto bad_header; - } - - /* wait until there is an empty line */ - for(;;) { - if (http_get_header_line(f, buf, URL_GET_BUF_SIZE, header_buf) < 0) { - bad_header: - response = JS_NULL; - goto done; - } - if (!strcmp(buf, "\r\n")) - break; - } - if (dbuf_error(header_buf)) - goto fail; - header_buf->size -= 2; /* remove the trailing CRLF */ - - /* download the data */ - for(;;) { - len = fread(buf, 1, URL_GET_BUF_SIZE, f); - if (len == 0) - break; - dbuf_put(data_buf, (uint8_t *)buf, len); - } - if (dbuf_error(data_buf)) - goto fail; - if (binary_flag) { - response = JS_NewArrayBufferCopy(ctx, - data_buf->buf, data_buf->size); - } else { - response = JS_NewStringLen(ctx, (char *)data_buf->buf, data_buf->size); - } - if (JS_IsException(response)) - goto fail; - done: - js_free(ctx, buf); - buf = NULL; - pclose(f); - f = NULL; - dbuf_free(data_buf); - data_buf = NULL; - - if (full_flag) { - ret_obj = JS_NewObject(ctx); - if (JS_IsException(ret_obj)) - goto fail; - JS_DefinePropertyValueStr(ctx, ret_obj, "response", - response, - JS_PROP_C_W_E); - if (!JS_IsNull(response)) { - JS_DefinePropertyValueStr(ctx, ret_obj, "responseHeaders", - JS_NewStringLen(ctx, (char *)header_buf->buf, - header_buf->size), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, ret_obj, "status", - JS_NewInt32(ctx, status), - JS_PROP_C_W_E); - } - } else { - ret_obj = response; - } - dbuf_free(header_buf); - return ret_obj; - fail: - if (f) - pclose(f); - js_free(ctx, buf); - if (data_buf) - dbuf_free(data_buf); - if (header_buf) - dbuf_free(header_buf); - JS_FreeValue(ctx, response); - return JS_EXCEPTION; -} - -static JSClassDef js_std_file_class = { - "FILE", - .finalizer = js_std_file_finalizer, -}; - -static const JSCFunctionListEntry js_std_error_props[] = { - /* various errno values */ -#define DEF(x) JS_PROP_INT32_DEF(#x, x, JS_PROP_CONFIGURABLE ) - DEF(EINVAL), - DEF(EIO), - DEF(EACCES), - DEF(EEXIST), - DEF(ENOSPC), - DEF(ENOSYS), - DEF(EBUSY), - DEF(ENOENT), - DEF(EPERM), - DEF(EPIPE), - DEF(EBADF), -#undef DEF -}; - -static const JSCFunctionListEntry js_std_funcs[] = { - JS_CFUNC_DEF("exit", 1, js_std_exit ), - JS_CFUNC_DEF("gc", 0, js_std_gc ), - JS_CFUNC_DEF("evalScript", 1, js_evalScript ), - JS_CFUNC_DEF("loadScript", 1, js_loadScript ), - JS_CFUNC_DEF("getenv", 1, js_std_getenv ), - JS_CFUNC_DEF("setenv", 1, js_std_setenv ), - JS_CFUNC_DEF("unsetenv", 1, js_std_unsetenv ), - JS_CFUNC_DEF("getenviron", 1, js_std_getenviron ), - JS_CFUNC_DEF("urlGet", 1, js_std_urlGet ), - JS_CFUNC_DEF("loadFile", 1, js_std_loadFile ), - JS_CFUNC_DEF("strerror", 1, js_std_strerror ), - JS_CFUNC_DEF("parseExtJSON", 1, js_std_parseExtJSON ), - - /* FILE I/O */ - JS_CFUNC_DEF("open", 2, js_std_open ), - JS_CFUNC_DEF("popen", 2, js_std_popen ), - JS_CFUNC_DEF("fdopen", 2, js_std_fdopen ), - JS_CFUNC_DEF("tmpfile", 0, js_std_tmpfile ), - JS_CFUNC_MAGIC_DEF("puts", 1, js_std_file_puts, 0 ), - JS_CFUNC_DEF("printf", 1, js_std_printf ), - JS_CFUNC_DEF("sprintf", 1, js_std_sprintf ), - JS_PROP_INT32_DEF("SEEK_SET", SEEK_SET, JS_PROP_CONFIGURABLE ), - JS_PROP_INT32_DEF("SEEK_CUR", SEEK_CUR, JS_PROP_CONFIGURABLE ), - JS_PROP_INT32_DEF("SEEK_END", SEEK_END, JS_PROP_CONFIGURABLE ), - JS_OBJECT_DEF("Error", js_std_error_props, countof(js_std_error_props), JS_PROP_CONFIGURABLE), -}; - -static const JSCFunctionListEntry js_std_file_proto_funcs[] = { - JS_CFUNC_DEF("close", 0, js_std_file_close ), - JS_CFUNC_MAGIC_DEF("puts", 1, js_std_file_puts, 1 ), - JS_CFUNC_DEF("printf", 1, js_std_file_printf ), - JS_CFUNC_DEF("flush", 0, js_std_file_flush ), - JS_CFUNC_MAGIC_DEF("tell", 0, js_std_file_tell, 0 ), - JS_CFUNC_MAGIC_DEF("tello", 0, js_std_file_tell, 1 ), - JS_CFUNC_DEF("seek", 2, js_std_file_seek ), - JS_CFUNC_DEF("eof", 0, js_std_file_eof ), - JS_CFUNC_DEF("fileno", 0, js_std_file_fileno ), - JS_CFUNC_DEF("error", 0, js_std_file_error ), - JS_CFUNC_DEF("clearerr", 0, js_std_file_clearerr ), - JS_CFUNC_MAGIC_DEF("read", 3, js_std_file_read_write, 0 ), - JS_CFUNC_MAGIC_DEF("write", 3, js_std_file_read_write, 1 ), - JS_CFUNC_DEF("getline", 0, js_std_file_getline ), - JS_CFUNC_DEF("readAsString", 0, js_std_file_readAsString ), - JS_CFUNC_DEF("getByte", 0, js_std_file_getByte ), - JS_CFUNC_DEF("putByte", 1, js_std_file_putByte ), - /* setvbuf, ... */ -}; - -static int js_std_init(JSContext *ctx, JSModuleDef *m) -{ - JSValue proto; - - /* FILE class */ - /* the class ID is created once */ - JS_NewClassID(&js_std_file_class_id); - /* the class is created once per runtime */ - JS_NewClass(JS_GetRuntime(ctx), js_std_file_class_id, &js_std_file_class); - proto = JS_NewObject(ctx); - JS_SetPropertyFunctionList(ctx, proto, js_std_file_proto_funcs, - countof(js_std_file_proto_funcs)); - JS_SetClassProto(ctx, js_std_file_class_id, proto); - - JS_SetModuleExportList(ctx, m, js_std_funcs, - countof(js_std_funcs)); - JS_SetModuleExport(ctx, m, "in", js_new_std_file(ctx, stdin, FALSE, FALSE)); - JS_SetModuleExport(ctx, m, "out", js_new_std_file(ctx, stdout, FALSE, FALSE)); - JS_SetModuleExport(ctx, m, "err", js_new_std_file(ctx, stderr, FALSE, FALSE)); - return 0; -} - -JSModuleDef *js_init_module_std(JSContext *ctx, const char *module_name) -{ - JSModuleDef *m; - m = JS_NewCModule(ctx, module_name, js_std_init); - if (!m) - return NULL; - JS_AddModuleExportList(ctx, m, js_std_funcs, countof(js_std_funcs)); - JS_AddModuleExport(ctx, m, "in"); - JS_AddModuleExport(ctx, m, "out"); - JS_AddModuleExport(ctx, m, "err"); - return m; -} - -/**********************************************************/ -/* 'os' object */ - -static JSValue js_os_open(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *filename; - int flags, mode, ret; - - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &flags, argv[1])) - goto fail; - if (argc >= 3 && !JS_IsUndefined(argv[2])) { - if (JS_ToInt32(ctx, &mode, argv[2])) { - fail: - JS_FreeCString(ctx, filename); - return JS_EXCEPTION; - } - } else { - mode = 0666; - } -#if defined(_WIN32) - /* force binary mode by default */ - if (!(flags & O_TEXT)) - flags |= O_BINARY; -#endif - ret = js_get_errno(open(filename, flags, mode)); - JS_FreeCString(ctx, filename); - return JS_NewInt32(ctx, ret); -} - -static JSValue js_os_close(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd, ret; - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - ret = js_get_errno(close(fd)); - return JS_NewInt32(ctx, ret); -} - -static JSValue js_os_seek(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd, whence; - int64_t pos, ret; - BOOL is_bigint; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - is_bigint = JS_IsBigInt(ctx, argv[1]); - if (JS_ToInt64Ext(ctx, &pos, argv[1])) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &whence, argv[2])) - return JS_EXCEPTION; - ret = lseek(fd, pos, whence); - if (ret == -1) - ret = -errno; - if (is_bigint) - return JS_NewBigInt64(ctx, ret); - else - return JS_NewInt64(ctx, ret); -} - -static JSValue js_os_read_write(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic) -{ - int fd; - uint64_t pos, len; - size_t size; - ssize_t ret; - uint8_t *buf; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - if (JS_ToIndex(ctx, &pos, argv[2])) - return JS_EXCEPTION; - if (JS_ToIndex(ctx, &len, argv[3])) - return JS_EXCEPTION; - buf = JS_GetArrayBuffer(ctx, &size, argv[1]); - if (!buf) - return JS_EXCEPTION; - if (pos + len > size) - return JS_ThrowRangeError(ctx, "read/write array buffer overflow"); - if (magic) - ret = js_get_errno(write(fd, buf + pos, len)); - else - ret = js_get_errno(read(fd, buf + pos, len)); - return JS_NewInt64(ctx, ret); -} - -static JSValue js_os_isatty(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd; - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - return JS_NewBool(ctx, (isatty(fd) != 0)); -} - -#if defined(_WIN32) -static JSValue js_os_ttyGetWinSize(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd; - HANDLE handle; - CONSOLE_SCREEN_BUFFER_INFO info; - JSValue obj; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - handle = (HANDLE)_get_osfhandle(fd); - - if (!GetConsoleScreenBufferInfo(handle, &info)) - return JS_NULL; - obj = JS_NewArray(ctx); - if (JS_IsException(obj)) - return obj; - JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, info.dwSize.X), JS_PROP_C_W_E); - JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, info.dwSize.Y), JS_PROP_C_W_E); - return obj; -} - -/* Windows 10 built-in VT100 emulation */ -#define __ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004 -#define __ENABLE_VIRTUAL_TERMINAL_INPUT 0x0200 - -static JSValue js_os_ttySetRaw(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd; - HANDLE handle; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - handle = (HANDLE)_get_osfhandle(fd); - SetConsoleMode(handle, ENABLE_WINDOW_INPUT | __ENABLE_VIRTUAL_TERMINAL_INPUT); - _setmode(fd, _O_BINARY); - if (fd == 0) { - handle = (HANDLE)_get_osfhandle(1); /* corresponding output */ - SetConsoleMode(handle, ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT | __ENABLE_VIRTUAL_TERMINAL_PROCESSING); - } - return JS_UNDEFINED; -} -#else -static JSValue js_os_ttyGetWinSize(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd; - struct winsize ws; - JSValue obj; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - if (ioctl(fd, TIOCGWINSZ, &ws) == 0 && - ws.ws_col >= 4 && ws.ws_row >= 4) { - obj = JS_NewArray(ctx); - if (JS_IsException(obj)) - return obj; - JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, ws.ws_col), JS_PROP_C_W_E); - JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, ws.ws_row), JS_PROP_C_W_E); - return obj; - } else { - return JS_NULL; - } -} - -static struct termios oldtty; - -static void term_exit(void) -{ - tcsetattr(0, TCSANOW, &oldtty); -} - -/* XXX: should add a way to go back to normal mode */ -static JSValue js_os_ttySetRaw(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - struct termios tty; - int fd; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - - memset(&tty, 0, sizeof(tty)); - tcgetattr(fd, &tty); - oldtty = tty; - - tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP - |INLCR|IGNCR|ICRNL|IXON); - tty.c_oflag |= OPOST; - tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); - tty.c_cflag &= ~(CSIZE|PARENB); - tty.c_cflag |= CS8; - tty.c_cc[VMIN] = 1; - tty.c_cc[VTIME] = 0; - - tcsetattr(fd, TCSANOW, &tty); - - atexit(term_exit); - return JS_UNDEFINED; -} - -#endif /* !_WIN32 */ - -static JSValue js_os_remove(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *filename; - int ret; - - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - return JS_EXCEPTION; -#if defined(_WIN32) - { - struct stat st; - if (stat(filename, &st) == 0 && S_ISDIR(st.st_mode)) { - ret = rmdir(filename); - } else { - ret = unlink(filename); - } - } -#else - ret = remove(filename); -#endif - ret = js_get_errno(ret); - JS_FreeCString(ctx, filename); - return JS_NewInt32(ctx, ret); -} - -static JSValue js_os_rename(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *oldpath, *newpath; - int ret; - - oldpath = JS_ToCString(ctx, argv[0]); - if (!oldpath) - return JS_EXCEPTION; - newpath = JS_ToCString(ctx, argv[1]); - if (!newpath) { - JS_FreeCString(ctx, oldpath); - return JS_EXCEPTION; - } - ret = js_get_errno(rename(oldpath, newpath)); - JS_FreeCString(ctx, oldpath); - JS_FreeCString(ctx, newpath); - return JS_NewInt32(ctx, ret); -} - -static BOOL is_main_thread(JSRuntime *rt) -{ - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - return !ts->recv_pipe; -} - -static JSOSRWHandler *find_rh(JSThreadState *ts, int fd) -{ - JSOSRWHandler *rh; - struct list_head *el; - - list_for_each(el, &ts->os_rw_handlers) { - rh = list_entry(el, JSOSRWHandler, link); - if (rh->fd == fd) - return rh; - } - return NULL; -} - -static void free_rw_handler(JSRuntime *rt, JSOSRWHandler *rh) -{ - int i; - list_del(&rh->link); - for(i = 0; i < 2; i++) { - JS_FreeValueRT(rt, rh->rw_func[i]); - } - js_free_rt(rt, rh); -} - -static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - JSOSRWHandler *rh; - int fd; - JSValueConst func; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - func = argv[1]; - if (JS_IsNull(func)) { - rh = find_rh(ts, fd); - if (rh) { - JS_FreeValue(ctx, rh->rw_func[magic]); - rh->rw_func[magic] = JS_NULL; - if (JS_IsNull(rh->rw_func[0]) && - JS_IsNull(rh->rw_func[1])) { - /* remove the entry */ - free_rw_handler(JS_GetRuntime(ctx), rh); - } - } - } else { - if (!JS_IsFunction(ctx, func)) - return JS_ThrowTypeError(ctx, "not a function"); - rh = find_rh(ts, fd); - if (!rh) { - rh = js_mallocz(ctx, sizeof(*rh)); - if (!rh) - return JS_EXCEPTION; - rh->fd = fd; - rh->rw_func[0] = JS_NULL; - rh->rw_func[1] = JS_NULL; - list_add_tail(&rh->link, &ts->os_rw_handlers); - } - JS_FreeValue(ctx, rh->rw_func[magic]); - rh->rw_func[magic] = JS_DupValue(ctx, func); - } - return JS_UNDEFINED; -} - -static JSOSSignalHandler *find_sh(JSThreadState *ts, int sig_num) -{ - JSOSSignalHandler *sh; - struct list_head *el; - list_for_each(el, &ts->os_signal_handlers) { - sh = list_entry(el, JSOSSignalHandler, link); - if (sh->sig_num == sig_num) - return sh; - } - return NULL; -} - -static void free_sh(JSRuntime *rt, JSOSSignalHandler *sh) -{ - list_del(&sh->link); - JS_FreeValueRT(rt, sh->func); - js_free_rt(rt, sh); -} - -static void os_signal_handler(int sig_num) -{ - os_pending_signals |= ((uint64_t)1 << sig_num); -} - -#if defined(_WIN32) -typedef void (*sighandler_t)(int sig_num); -#endif - -static JSValue js_os_signal(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - JSOSSignalHandler *sh; - uint32_t sig_num; - JSValueConst func; - sighandler_t handler; - - if (!is_main_thread(rt)) - return JS_ThrowTypeError(ctx, "signal handler can only be set in the main thread"); - - if (JS_ToUint32(ctx, &sig_num, argv[0])) - return JS_EXCEPTION; - if (sig_num >= 64) - return JS_ThrowRangeError(ctx, "invalid signal number"); - func = argv[1]; - /* func = null: SIG_DFL, func = undefined, SIG_IGN */ - if (JS_IsNull(func) || JS_IsUndefined(func)) { - sh = find_sh(ts, sig_num); - if (sh) { - free_sh(JS_GetRuntime(ctx), sh); - } - if (JS_IsNull(func)) - handler = SIG_DFL; - else - handler = SIG_IGN; - signal(sig_num, handler); - } else { - if (!JS_IsFunction(ctx, func)) - return JS_ThrowTypeError(ctx, "not a function"); - sh = find_sh(ts, sig_num); - if (!sh) { - sh = js_mallocz(ctx, sizeof(*sh)); - if (!sh) - return JS_EXCEPTION; - sh->sig_num = sig_num; - list_add_tail(&sh->link, &ts->os_signal_handlers); - } - JS_FreeValue(ctx, sh->func); - sh->func = JS_DupValue(ctx, func); - signal(sig_num, os_signal_handler); - } - return JS_UNDEFINED; -} - -#if defined(__linux__) || defined(__APPLE__) -static int64_t get_time_ms(void) -{ - struct timespec ts; - clock_gettime(CLOCK_MONOTONIC, &ts); - return (uint64_t)ts.tv_sec * 1000 + (ts.tv_nsec / 1000000); -} - -static int64_t get_time_ns(void) -{ - struct timespec ts; - clock_gettime(CLOCK_MONOTONIC, &ts); - return (uint64_t)ts.tv_sec * 1000000000 + ts.tv_nsec; -} -#else -/* more portable, but does not work if the date is updated */ -static int64_t get_time_ms(void) -{ - struct timeval tv; - gettimeofday(&tv, NULL); - return (int64_t)tv.tv_sec * 1000 + (tv.tv_usec / 1000); -} - -static int64_t get_time_ns(void) -{ - struct timeval tv; - gettimeofday(&tv, NULL); - return (int64_t)tv.tv_sec * 1000000000 + (tv.tv_usec * 1000); -} -#endif - -static JSValue js_os_now(JSContext *ctx, JSValue this_val, - int argc, JSValue *argv) -{ - return JS_NewFloat64(ctx, (double)get_time_ns() / 1e6); -} - -static void unlink_timer(JSRuntime *rt, JSOSTimer *th) -{ - if (th->link.prev) { - list_del(&th->link); - th->link.prev = th->link.next = NULL; - } -} - -static void free_timer(JSRuntime *rt, JSOSTimer *th) -{ - JS_FreeValueRT(rt, th->func); - js_free_rt(rt, th); -} - -static JSClassID js_os_timer_class_id; - -static void js_os_timer_finalizer(JSRuntime *rt, JSValue val) -{ - JSOSTimer *th = JS_GetOpaque(val, js_os_timer_class_id); - if (th) { - th->has_object = FALSE; - if (!th->link.prev) - free_timer(rt, th); - } -} - -static void js_os_timer_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSOSTimer *th = JS_GetOpaque(val, js_os_timer_class_id); - if (th) { - JS_MarkValue(rt, th->func, mark_func); - } -} - -static JSValue js_os_setTimeout(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - int64_t delay; - JSValueConst func; - JSOSTimer *th; - JSValue obj; - - func = argv[0]; - if (!JS_IsFunction(ctx, func)) - return JS_ThrowTypeError(ctx, "not a function"); - if (JS_ToInt64(ctx, &delay, argv[1])) - return JS_EXCEPTION; - obj = JS_NewObjectClass(ctx, js_os_timer_class_id); - if (JS_IsException(obj)) - return obj; - th = js_mallocz(ctx, sizeof(*th)); - if (!th) { - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; - } - th->has_object = TRUE; - th->timeout = get_time_ms() + delay; - th->func = JS_DupValue(ctx, func); - list_add_tail(&th->link, &ts->os_timers); - JS_SetOpaque(obj, th); - return obj; -} - -static JSValue js_os_clearTimeout(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSOSTimer *th = JS_GetOpaque2(ctx, argv[0], js_os_timer_class_id); - if (!th) - return JS_EXCEPTION; - unlink_timer(JS_GetRuntime(ctx), th); - return JS_UNDEFINED; -} - -static JSClassDef js_os_timer_class = { - "OSTimer", - .finalizer = js_os_timer_finalizer, - .gc_mark = js_os_timer_mark, -}; - -/* return a promise */ -static JSValue js_os_sleepAsync(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - int64_t delay; - JSOSTimer *th; - JSValue promise, resolving_funcs[2]; - - if (JS_ToInt64(ctx, &delay, argv[0])) - return JS_EXCEPTION; - promise = JS_NewPromiseCapability(ctx, resolving_funcs); - if (JS_IsException(promise)) - return JS_EXCEPTION; - - th = js_mallocz(ctx, sizeof(*th)); - if (!th) { - JS_FreeValue(ctx, promise); - JS_FreeValue(ctx, resolving_funcs[0]); - JS_FreeValue(ctx, resolving_funcs[1]); - return JS_EXCEPTION; - } - th->has_object = FALSE; - th->timeout = get_time_ms() + delay; - th->func = JS_DupValue(ctx, resolving_funcs[0]); - list_add_tail(&th->link, &ts->os_timers); - JS_FreeValue(ctx, resolving_funcs[0]); - JS_FreeValue(ctx, resolving_funcs[1]); - return promise; -} - -static void call_handler(JSContext *ctx, JSValueConst func) -{ - JSValue ret, func1; - /* 'func' might be destroyed when calling itself (if it frees the - handler), so must take extra care */ - func1 = JS_DupValue(ctx, func); - ret = JS_Call(ctx, func1, JS_UNDEFINED, 0, NULL); - JS_FreeValue(ctx, func1); - if (JS_IsException(ret)) - js_std_dump_error(ctx); - JS_FreeValue(ctx, ret); -} - -#if defined(_WIN32) - -static int js_os_poll(JSContext *ctx) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - int min_delay, console_fd; - int64_t cur_time, delay; - JSOSRWHandler *rh; - struct list_head *el; - - /* XXX: handle signals if useful */ - - if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers)) - return -1; /* no more events */ - - /* XXX: only timers and basic console input are supported */ - if (!list_empty(&ts->os_timers)) { - cur_time = get_time_ms(); - min_delay = 10000; - list_for_each(el, &ts->os_timers) { - JSOSTimer *th = list_entry(el, JSOSTimer, link); - delay = th->timeout - cur_time; - if (delay <= 0) { - JSValue func; - /* the timer expired */ - func = th->func; - th->func = JS_UNDEFINED; - unlink_timer(rt, th); - if (!th->has_object) - free_timer(rt, th); - call_handler(ctx, func); - JS_FreeValue(ctx, func); - return 0; - } else if (delay < min_delay) { - min_delay = delay; - } - } - } else { - min_delay = -1; - } - - console_fd = -1; - list_for_each(el, &ts->os_rw_handlers) { - rh = list_entry(el, JSOSRWHandler, link); - if (rh->fd == 0 && !JS_IsNull(rh->rw_func[0])) { - console_fd = rh->fd; - break; - } - } - - if (console_fd >= 0) { - DWORD ti, ret; - HANDLE handle; - if (min_delay == -1) - ti = INFINITE; - else - ti = min_delay; - handle = (HANDLE)_get_osfhandle(console_fd); - ret = WaitForSingleObject(handle, ti); - if (ret == WAIT_OBJECT_0) { - list_for_each(el, &ts->os_rw_handlers) { - rh = list_entry(el, JSOSRWHandler, link); - if (rh->fd == console_fd && !JS_IsNull(rh->rw_func[0])) { - call_handler(ctx, rh->rw_func[0]); - /* must stop because the list may have been modified */ - break; - } - } - } - } else { - Sleep(min_delay); - } - return 0; -} -#else - -#ifdef USE_WORKER - -static void js_free_message(JSWorkerMessage *msg); - -/* return 1 if a message was handled, 0 if no message */ -static int handle_posted_message(JSRuntime *rt, JSContext *ctx, - JSWorkerMessageHandler *port) -{ - JSWorkerMessagePipe *ps = port->recv_pipe; - int ret; - struct list_head *el; - JSWorkerMessage *msg; - JSValue obj, data_obj, func, retval; - - pthread_mutex_lock(&ps->mutex); - if (!list_empty(&ps->msg_queue)) { - el = ps->msg_queue.next; - msg = list_entry(el, JSWorkerMessage, link); - - /* remove the message from the queue */ - list_del(&msg->link); - - if (list_empty(&ps->msg_queue)) { - uint8_t buf[16]; - int ret; - for(;;) { - ret = read(ps->read_fd, buf, sizeof(buf)); - if (ret >= 0) - break; - if (errno != EAGAIN && errno != EINTR) - break; - } - } - - pthread_mutex_unlock(&ps->mutex); - - data_obj = JS_ReadObject(ctx, msg->data, msg->data_len, - JS_READ_OBJ_SAB | JS_READ_OBJ_REFERENCE); - - js_free_message(msg); - - if (JS_IsException(data_obj)) - goto fail; - obj = JS_NewObject(ctx); - if (JS_IsException(obj)) { - JS_FreeValue(ctx, data_obj); - goto fail; - } - JS_DefinePropertyValueStr(ctx, obj, "data", data_obj, JS_PROP_C_W_E); - - /* 'func' might be destroyed when calling itself (if it frees the - handler), so must take extra care */ - func = JS_DupValue(ctx, port->on_message_func); - retval = JS_Call(ctx, func, JS_UNDEFINED, 1, (JSValueConst *)&obj); - JS_FreeValue(ctx, obj); - JS_FreeValue(ctx, func); - if (JS_IsException(retval)) { - fail: - js_std_dump_error(ctx); - } else { - JS_FreeValue(ctx, retval); - } - ret = 1; - } else { - pthread_mutex_unlock(&ps->mutex); - ret = 0; - } - return ret; -} -#else -static int handle_posted_message(JSRuntime *rt, JSContext *ctx, - JSWorkerMessageHandler *port) -{ - return 0; -} -#endif - -static int js_os_poll(JSContext *ctx) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - int ret, fd_max, min_delay; - int64_t cur_time, delay; - fd_set rfds, wfds; - JSOSRWHandler *rh; - struct list_head *el; - struct timeval tv, *tvp; - - /* only check signals in the main thread */ - if (!ts->recv_pipe && - unlikely(os_pending_signals != 0)) { - JSOSSignalHandler *sh; - uint64_t mask; - - list_for_each(el, &ts->os_signal_handlers) { - sh = list_entry(el, JSOSSignalHandler, link); - mask = (uint64_t)1 << sh->sig_num; - if (os_pending_signals & mask) { - os_pending_signals &= ~mask; - call_handler(ctx, sh->func); - return 0; - } - } - } - - if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) && - list_empty(&ts->port_list)) - return -1; /* no more events */ - - if (!list_empty(&ts->os_timers)) { - cur_time = get_time_ms(); - min_delay = 10000; - list_for_each(el, &ts->os_timers) { - JSOSTimer *th = list_entry(el, JSOSTimer, link); - delay = th->timeout - cur_time; - if (delay <= 0) { - JSValue func; - /* the timer expired */ - func = th->func; - th->func = JS_UNDEFINED; - unlink_timer(rt, th); - if (!th->has_object) - free_timer(rt, th); - call_handler(ctx, func); - JS_FreeValue(ctx, func); - return 0; - } else if (delay < min_delay) { - min_delay = delay; - } - } - tv.tv_sec = min_delay / 1000; - tv.tv_usec = (min_delay % 1000) * 1000; - tvp = &tv; - } else { - tvp = NULL; - } - - FD_ZERO(&rfds); - FD_ZERO(&wfds); - fd_max = -1; - list_for_each(el, &ts->os_rw_handlers) { - rh = list_entry(el, JSOSRWHandler, link); - fd_max = max_int(fd_max, rh->fd); - if (!JS_IsNull(rh->rw_func[0])) - FD_SET(rh->fd, &rfds); - if (!JS_IsNull(rh->rw_func[1])) - FD_SET(rh->fd, &wfds); - } - - list_for_each(el, &ts->port_list) { - JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); - if (!JS_IsNull(port->on_message_func)) { - JSWorkerMessagePipe *ps = port->recv_pipe; - fd_max = max_int(fd_max, ps->read_fd); - FD_SET(ps->read_fd, &rfds); - } - } - - ret = select(fd_max + 1, &rfds, &wfds, NULL, tvp); - if (ret > 0) { - list_for_each(el, &ts->os_rw_handlers) { - rh = list_entry(el, JSOSRWHandler, link); - if (!JS_IsNull(rh->rw_func[0]) && - FD_ISSET(rh->fd, &rfds)) { - call_handler(ctx, rh->rw_func[0]); - /* must stop because the list may have been modified */ - goto done; - } - if (!JS_IsNull(rh->rw_func[1]) && - FD_ISSET(rh->fd, &wfds)) { - call_handler(ctx, rh->rw_func[1]); - /* must stop because the list may have been modified */ - goto done; - } - } - - list_for_each(el, &ts->port_list) { - JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link); - if (!JS_IsNull(port->on_message_func)) { - JSWorkerMessagePipe *ps = port->recv_pipe; - if (FD_ISSET(ps->read_fd, &rfds)) { - if (handle_posted_message(rt, ctx, port)) - goto done; - } - } - } - } - done: - return 0; -} -#endif /* !_WIN32 */ - -static JSValue make_obj_error(JSContext *ctx, - JSValue obj, - int err) -{ - JSValue arr; - if (JS_IsException(obj)) - return obj; - arr = JS_NewArray(ctx); - if (JS_IsException(arr)) - return JS_EXCEPTION; - JS_DefinePropertyValueUint32(ctx, arr, 0, obj, - JS_PROP_C_W_E); - JS_DefinePropertyValueUint32(ctx, arr, 1, JS_NewInt32(ctx, err), - JS_PROP_C_W_E); - return arr; -} - -static JSValue make_string_error(JSContext *ctx, - const char *buf, - int err) -{ - return make_obj_error(ctx, JS_NewString(ctx, buf), err); -} - -/* return [cwd, errorcode] */ -static JSValue js_os_getcwd(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - char buf[PATH_MAX]; - int err; - - if (!getcwd(buf, sizeof(buf))) { - buf[0] = '\0'; - err = errno; - } else { - err = 0; - } - return make_string_error(ctx, buf, err); -} - -static JSValue js_os_chdir(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *target; - int err; - - target = JS_ToCString(ctx, argv[0]); - if (!target) - return JS_EXCEPTION; - err = js_get_errno(chdir(target)); - JS_FreeCString(ctx, target); - return JS_NewInt32(ctx, err); -} - -static JSValue js_os_mkdir(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int mode, ret; - const char *path; - - if (argc >= 2) { - if (JS_ToInt32(ctx, &mode, argv[1])) - return JS_EXCEPTION; - } else { - mode = 0777; - } - path = JS_ToCString(ctx, argv[0]); - if (!path) - return JS_EXCEPTION; -#if defined(_WIN32) - (void)mode; - ret = js_get_errno(mkdir(path)); -#else - ret = js_get_errno(mkdir(path, mode)); -#endif - JS_FreeCString(ctx, path); - return JS_NewInt32(ctx, ret); -} - -/* return [array, errorcode] */ -static JSValue js_os_readdir(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *path; - DIR *f; - struct dirent *d; - JSValue obj; - int err; - uint32_t len; - - path = JS_ToCString(ctx, argv[0]); - if (!path) - return JS_EXCEPTION; - obj = JS_NewArray(ctx); - if (JS_IsException(obj)) { - JS_FreeCString(ctx, path); - return JS_EXCEPTION; - } - f = opendir(path); - if (!f) - err = errno; - else - err = 0; - JS_FreeCString(ctx, path); - if (!f) - goto done; - len = 0; - for(;;) { - errno = 0; - d = readdir(f); - if (!d) { - err = errno; - break; - } - JS_DefinePropertyValueUint32(ctx, obj, len++, - JS_NewString(ctx, d->d_name), - JS_PROP_C_W_E); - } - closedir(f); - done: - return make_obj_error(ctx, obj, err); -} - -#if !defined(_WIN32) -static int64_t timespec_to_ms(const struct timespec *tv) -{ - return (int64_t)tv->tv_sec * 1000 + (tv->tv_nsec / 1000000); -} -#endif - -/* return [obj, errcode] */ -static JSValue js_os_stat(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int is_lstat) -{ - const char *path; - int err, res; - struct stat st; - JSValue obj; - - path = JS_ToCString(ctx, argv[0]); - if (!path) - return JS_EXCEPTION; -#if defined(_WIN32) - res = stat(path, &st); -#else - if (is_lstat) - res = lstat(path, &st); - else - res = stat(path, &st); -#endif - JS_FreeCString(ctx, path); - if (res < 0) { - err = errno; - obj = JS_NULL; - } else { - err = 0; - obj = JS_NewObject(ctx); - if (JS_IsException(obj)) - return JS_EXCEPTION; - JS_DefinePropertyValueStr(ctx, obj, "dev", - JS_NewInt64(ctx, st.st_dev), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "ino", - JS_NewInt64(ctx, st.st_ino), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "mode", - JS_NewInt32(ctx, st.st_mode), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "nlink", - JS_NewInt64(ctx, st.st_nlink), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "uid", - JS_NewInt64(ctx, st.st_uid), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "gid", - JS_NewInt64(ctx, st.st_gid), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "rdev", - JS_NewInt64(ctx, st.st_rdev), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "size", - JS_NewInt64(ctx, st.st_size), - JS_PROP_C_W_E); -#if !defined(_WIN32) - JS_DefinePropertyValueStr(ctx, obj, "blocks", - JS_NewInt64(ctx, st.st_blocks), - JS_PROP_C_W_E); -#endif -#if defined(_WIN32) - JS_DefinePropertyValueStr(ctx, obj, "atime", - JS_NewInt64(ctx, (int64_t)st.st_atime * 1000), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "mtime", - JS_NewInt64(ctx, (int64_t)st.st_mtime * 1000), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "ctime", - JS_NewInt64(ctx, (int64_t)st.st_ctime * 1000), - JS_PROP_C_W_E); -#elif defined(__APPLE__) - JS_DefinePropertyValueStr(ctx, obj, "atime", - JS_NewInt64(ctx, timespec_to_ms(&st.st_atimespec)), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "mtime", - JS_NewInt64(ctx, timespec_to_ms(&st.st_mtimespec)), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "ctime", - JS_NewInt64(ctx, timespec_to_ms(&st.st_ctimespec)), - JS_PROP_C_W_E); -#else - JS_DefinePropertyValueStr(ctx, obj, "atime", - JS_NewInt64(ctx, timespec_to_ms(&st.st_atim)), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "mtime", - JS_NewInt64(ctx, timespec_to_ms(&st.st_mtim)), - JS_PROP_C_W_E); - JS_DefinePropertyValueStr(ctx, obj, "ctime", - JS_NewInt64(ctx, timespec_to_ms(&st.st_ctim)), - JS_PROP_C_W_E); -#endif - } - return make_obj_error(ctx, obj, err); -} - -#if !defined(_WIN32) -static void ms_to_timeval(struct timeval *tv, uint64_t v) -{ - tv->tv_sec = v / 1000; - tv->tv_usec = (v % 1000) * 1000; -} -#endif - -static JSValue js_os_utimes(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *path; - int64_t atime, mtime; - int ret; - - if (JS_ToInt64(ctx, &atime, argv[1])) - return JS_EXCEPTION; - if (JS_ToInt64(ctx, &mtime, argv[2])) - return JS_EXCEPTION; - path = JS_ToCString(ctx, argv[0]); - if (!path) - return JS_EXCEPTION; -#if defined(_WIN32) - { - struct _utimbuf times; - times.actime = atime / 1000; - times.modtime = mtime / 1000; - ret = js_get_errno(_utime(path, ×)); - } -#else - { - struct timeval times[2]; - ms_to_timeval(×[0], atime); - ms_to_timeval(×[1], mtime); - ret = js_get_errno(utimes(path, times)); - } -#endif - JS_FreeCString(ctx, path); - return JS_NewInt32(ctx, ret); -} - -/* sleep(delay_ms) */ -static JSValue js_os_sleep(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int64_t delay; - int ret; - - if (JS_ToInt64(ctx, &delay, argv[0])) - return JS_EXCEPTION; - if (delay < 0) - delay = 0; -#if defined(_WIN32) - { - if (delay > INT32_MAX) - delay = INT32_MAX; - Sleep(delay); - ret = 0; - } -#else - { - struct timespec ts; - - ts.tv_sec = delay / 1000; - ts.tv_nsec = (delay % 1000) * 1000000; - ret = js_get_errno(nanosleep(&ts, NULL)); - } -#endif - return JS_NewInt32(ctx, ret); -} - -#if defined(_WIN32) -static char *realpath(const char *path, char *buf) -{ - if (!_fullpath(buf, path, PATH_MAX)) { - errno = ENOENT; - return NULL; - } else { - return buf; - } -} -#endif - -/* return [path, errorcode] */ -static JSValue js_os_realpath(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *path; - char buf[PATH_MAX], *res; - int err; - - path = JS_ToCString(ctx, argv[0]); - if (!path) - return JS_EXCEPTION; - res = realpath(path, buf); - JS_FreeCString(ctx, path); - if (!res) { - buf[0] = '\0'; - err = errno; - } else { - err = 0; - } - return make_string_error(ctx, buf, err); -} - -#if !defined(_WIN32) -static JSValue js_os_symlink(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *target, *linkpath; - int err; - - target = JS_ToCString(ctx, argv[0]); - if (!target) - return JS_EXCEPTION; - linkpath = JS_ToCString(ctx, argv[1]); - if (!linkpath) { - JS_FreeCString(ctx, target); - return JS_EXCEPTION; - } - err = js_get_errno(symlink(target, linkpath)); - JS_FreeCString(ctx, target); - JS_FreeCString(ctx, linkpath); - return JS_NewInt32(ctx, err); -} - -/* return [path, errorcode] */ -static JSValue js_os_readlink(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - const char *path; - char buf[PATH_MAX]; - int err; - ssize_t res; - - path = JS_ToCString(ctx, argv[0]); - if (!path) - return JS_EXCEPTION; - res = readlink(path, buf, sizeof(buf) - 1); - if (res < 0) { - buf[0] = '\0'; - err = errno; - } else { - buf[res] = '\0'; - err = 0; - } - JS_FreeCString(ctx, path); - return make_string_error(ctx, buf, err); -} - -static char **build_envp(JSContext *ctx, JSValueConst obj) -{ - uint32_t len, i; - JSPropertyEnum *tab; - char **envp, *pair; - const char *key, *str; - JSValue val; - size_t key_len, str_len; - - if (JS_GetOwnPropertyNames(ctx, &tab, &len, obj, - JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY) < 0) - return NULL; - envp = js_mallocz(ctx, sizeof(envp[0]) * ((size_t)len + 1)); - if (!envp) - goto fail; - for(i = 0; i < len; i++) { - val = JS_GetProperty(ctx, obj, tab[i].atom); - if (JS_IsException(val)) - goto fail; - str = JS_ToCString(ctx, val); - JS_FreeValue(ctx, val); - if (!str) - goto fail; - key = JS_AtomToCString(ctx, tab[i].atom); - if (!key) { - JS_FreeCString(ctx, str); - goto fail; - } - key_len = strlen(key); - str_len = strlen(str); - pair = js_malloc(ctx, key_len + str_len + 2); - if (!pair) { - JS_FreeCString(ctx, key); - JS_FreeCString(ctx, str); - goto fail; - } - memcpy(pair, key, key_len); - pair[key_len] = '='; - memcpy(pair + key_len + 1, str, str_len); - pair[key_len + 1 + str_len] = '\0'; - envp[i] = pair; - JS_FreeCString(ctx, key); - JS_FreeCString(ctx, str); - } - done: - for(i = 0; i < len; i++) - JS_FreeAtom(ctx, tab[i].atom); - js_free(ctx, tab); - return envp; - fail: - if (envp) { - for(i = 0; i < len; i++) - js_free(ctx, envp[i]); - js_free(ctx, envp); - envp = NULL; - } - goto done; -} - -/* execvpe is not available on non GNU systems */ -static int my_execvpe(const char *filename, char **argv, char **envp) -{ - char *path, *p, *p_next, *p1; - char buf[PATH_MAX]; - size_t filename_len, path_len; - BOOL eacces_error; - - filename_len = strlen(filename); - if (filename_len == 0) { - errno = ENOENT; - return -1; - } - if (strchr(filename, '/')) - return execve(filename, argv, envp); - - path = getenv("PATH"); - if (!path) - path = (char *)"/bin:/usr/bin"; - eacces_error = FALSE; - p = path; - for(p = path; p != NULL; p = p_next) { - p1 = strchr(p, ':'); - if (!p1) { - p_next = NULL; - path_len = strlen(p); - } else { - p_next = p1 + 1; - path_len = p1 - p; - } - /* path too long */ - if ((path_len + 1 + filename_len + 1) > PATH_MAX) - continue; - memcpy(buf, p, path_len); - buf[path_len] = '/'; - memcpy(buf + path_len + 1, filename, filename_len); - buf[path_len + 1 + filename_len] = '\0'; - - execve(buf, argv, envp); - - switch(errno) { - case EACCES: - eacces_error = TRUE; - break; - case ENOENT: - case ENOTDIR: - break; - default: - return -1; - } - } - if (eacces_error) - errno = EACCES; - return -1; -} - -/* exec(args[, options]) -> exitcode */ -static JSValue js_os_exec(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSValueConst options, args = argv[0]; - JSValue val, ret_val; - const char **exec_argv, *file = NULL, *str, *cwd = NULL; - char **envp = environ; - uint32_t exec_argc, i; - int ret, pid, status; - BOOL block_flag = TRUE, use_path = TRUE; - static const char *std_name[3] = { "stdin", "stdout", "stderr" }; - int std_fds[3]; - uint32_t uid = -1, gid = -1; - - val = JS_GetPropertyStr(ctx, args, "length"); - if (JS_IsException(val)) - return JS_EXCEPTION; - ret = JS_ToUint32(ctx, &exec_argc, val); - JS_FreeValue(ctx, val); - if (ret) - return JS_EXCEPTION; - /* arbitrary limit to avoid overflow */ - if (exec_argc < 1 || exec_argc > 65535) { - return JS_ThrowTypeError(ctx, "invalid number of arguments"); - } - exec_argv = js_mallocz(ctx, sizeof(exec_argv[0]) * (exec_argc + 1)); - if (!exec_argv) - return JS_EXCEPTION; - for(i = 0; i < exec_argc; i++) { - val = JS_GetPropertyUint32(ctx, args, i); - if (JS_IsException(val)) - goto exception; - str = JS_ToCString(ctx, val); - JS_FreeValue(ctx, val); - if (!str) - goto exception; - exec_argv[i] = str; - } - exec_argv[exec_argc] = NULL; - - for(i = 0; i < 3; i++) - std_fds[i] = i; - - /* get the options, if any */ - if (argc >= 2) { - options = argv[1]; - - if (get_bool_option(ctx, &block_flag, options, "block")) - goto exception; - if (get_bool_option(ctx, &use_path, options, "usePath")) - goto exception; - - val = JS_GetPropertyStr(ctx, options, "file"); - if (JS_IsException(val)) - goto exception; - if (!JS_IsUndefined(val)) { - file = JS_ToCString(ctx, val); - JS_FreeValue(ctx, val); - if (!file) - goto exception; - } - - val = JS_GetPropertyStr(ctx, options, "cwd"); - if (JS_IsException(val)) - goto exception; - if (!JS_IsUndefined(val)) { - cwd = JS_ToCString(ctx, val); - JS_FreeValue(ctx, val); - if (!cwd) - goto exception; - } - - /* stdin/stdout/stderr handles */ - for(i = 0; i < 3; i++) { - val = JS_GetPropertyStr(ctx, options, std_name[i]); - if (JS_IsException(val)) - goto exception; - if (!JS_IsUndefined(val)) { - int fd; - ret = JS_ToInt32(ctx, &fd, val); - JS_FreeValue(ctx, val); - if (ret) - goto exception; - std_fds[i] = fd; - } - } - - val = JS_GetPropertyStr(ctx, options, "env"); - if (JS_IsException(val)) - goto exception; - if (!JS_IsUndefined(val)) { - envp = build_envp(ctx, val); - JS_FreeValue(ctx, val); - if (!envp) - goto exception; - } - - val = JS_GetPropertyStr(ctx, options, "uid"); - if (JS_IsException(val)) - goto exception; - if (!JS_IsUndefined(val)) { - ret = JS_ToUint32(ctx, &uid, val); - JS_FreeValue(ctx, val); - if (ret) - goto exception; - } - - val = JS_GetPropertyStr(ctx, options, "gid"); - if (JS_IsException(val)) - goto exception; - if (!JS_IsUndefined(val)) { - ret = JS_ToUint32(ctx, &gid, val); - JS_FreeValue(ctx, val); - if (ret) - goto exception; - } - } - - pid = fork(); - if (pid < 0) { - JS_ThrowTypeError(ctx, "fork error"); - goto exception; - } - if (pid == 0) { - /* child */ - int fd_max = sysconf(_SC_OPEN_MAX); - - /* remap the stdin/stdout/stderr handles if necessary */ - for(i = 0; i < 3; i++) { - if (std_fds[i] != i) { - if (dup2(std_fds[i], i) < 0) - _exit(127); - } - } - - for(i = 3; i < fd_max; i++) - close(i); - if (cwd) { - if (chdir(cwd) < 0) - _exit(127); - } - if (uid != -1) { - if (setuid(uid) < 0) - _exit(127); - } - if (gid != -1) { - if (setgid(gid) < 0) - _exit(127); - } - - if (!file) - file = exec_argv[0]; - if (use_path) - ret = my_execvpe(file, (char **)exec_argv, envp); - else - ret = execve(file, (char **)exec_argv, envp); - _exit(127); - } - /* parent */ - if (block_flag) { - for(;;) { - ret = waitpid(pid, &status, 0); - if (ret == pid) { - if (WIFEXITED(status)) { - ret = WEXITSTATUS(status); - break; - } else if (WIFSIGNALED(status)) { - ret = -WTERMSIG(status); - break; - } - } - } - } else { - ret = pid; - } - ret_val = JS_NewInt32(ctx, ret); - done: - JS_FreeCString(ctx, file); - JS_FreeCString(ctx, cwd); - for(i = 0; i < exec_argc; i++) - JS_FreeCString(ctx, exec_argv[i]); - js_free(ctx, exec_argv); - if (envp != environ) { - char **p; - p = envp; - while (*p != NULL) { - js_free(ctx, *p); - p++; - } - js_free(ctx, envp); - } - return ret_val; - exception: - ret_val = JS_EXCEPTION; - goto done; -} - -/* getpid() -> pid */ -static JSValue js_os_getpid(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - return JS_NewInt32(ctx, getpid()); -} - -/* waitpid(pid, block) -> [pid, status] */ -static JSValue js_os_waitpid(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int pid, status, options, ret; - JSValue obj; - - if (JS_ToInt32(ctx, &pid, argv[0])) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &options, argv[1])) - return JS_EXCEPTION; - - ret = waitpid(pid, &status, options); - if (ret < 0) { - ret = -errno; - status = 0; - } - - obj = JS_NewArray(ctx); - if (JS_IsException(obj)) - return obj; - JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, ret), - JS_PROP_C_W_E); - JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, status), - JS_PROP_C_W_E); - return obj; -} - -/* pipe() -> [read_fd, write_fd] or null if error */ -static JSValue js_os_pipe(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int pipe_fds[2], ret; - JSValue obj; - - ret = pipe(pipe_fds); - if (ret < 0) - return JS_NULL; - obj = JS_NewArray(ctx); - if (JS_IsException(obj)) - return obj; - JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, pipe_fds[0]), - JS_PROP_C_W_E); - JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, pipe_fds[1]), - JS_PROP_C_W_E); - return obj; -} - -/* kill(pid, sig) */ -static JSValue js_os_kill(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int pid, sig, ret; - - if (JS_ToInt32(ctx, &pid, argv[0])) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &sig, argv[1])) - return JS_EXCEPTION; - ret = js_get_errno(kill(pid, sig)); - return JS_NewInt32(ctx, ret); -} - -/* dup(fd) */ -static JSValue js_os_dup(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd, ret; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - ret = js_get_errno(dup(fd)); - return JS_NewInt32(ctx, ret); -} - -/* dup2(fd) */ -static JSValue js_os_dup2(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int fd, fd2, ret; - - if (JS_ToInt32(ctx, &fd, argv[0])) - return JS_EXCEPTION; - if (JS_ToInt32(ctx, &fd2, argv[1])) - return JS_EXCEPTION; - ret = js_get_errno(dup2(fd, fd2)); - return JS_NewInt32(ctx, ret); -} - -#endif /* !_WIN32 */ - -#ifdef USE_WORKER - -/* Worker */ - -typedef struct { - JSWorkerMessagePipe *recv_pipe; - JSWorkerMessagePipe *send_pipe; - JSWorkerMessageHandler *msg_handler; -} JSWorkerData; - -typedef struct { - char *filename; /* module filename */ - char *basename; /* module base name */ - JSWorkerMessagePipe *recv_pipe, *send_pipe; -} WorkerFuncArgs; - -typedef struct { - int ref_count; - uint64_t buf[0]; -} JSSABHeader; - -static JSClassID js_worker_class_id; -static JSContext *(*js_worker_new_context_func)(JSRuntime *rt); - -static int atomic_add_int(int *ptr, int v) -{ - return atomic_fetch_add((_Atomic(uint32_t) *)ptr, v) + v; -} - -/* shared array buffer allocator */ -static void *js_sab_alloc(void *opaque, size_t size) -{ - JSSABHeader *sab; - sab = malloc(sizeof(JSSABHeader) + size); - if (!sab) - return NULL; - sab->ref_count = 1; - return sab->buf; -} - -static void js_sab_free(void *opaque, void *ptr) -{ - JSSABHeader *sab; - int ref_count; - sab = (JSSABHeader *)((uint8_t *)ptr - sizeof(JSSABHeader)); - ref_count = atomic_add_int(&sab->ref_count, -1); - assert(ref_count >= 0); - if (ref_count == 0) { - free(sab); - } -} - -static void js_sab_dup(void *opaque, void *ptr) -{ - JSSABHeader *sab; - sab = (JSSABHeader *)((uint8_t *)ptr - sizeof(JSSABHeader)); - atomic_add_int(&sab->ref_count, 1); -} - -static JSWorkerMessagePipe *js_new_message_pipe(void) -{ - JSWorkerMessagePipe *ps; - int pipe_fds[2]; - - if (pipe(pipe_fds) < 0) - return NULL; - - ps = malloc(sizeof(*ps)); - if (!ps) { - close(pipe_fds[0]); - close(pipe_fds[1]); - return NULL; - } - ps->ref_count = 1; - init_list_head(&ps->msg_queue); - pthread_mutex_init(&ps->mutex, NULL); - ps->read_fd = pipe_fds[0]; - ps->write_fd = pipe_fds[1]; - return ps; -} - -static JSWorkerMessagePipe *js_dup_message_pipe(JSWorkerMessagePipe *ps) -{ - atomic_add_int(&ps->ref_count, 1); - return ps; -} - -static void js_free_message(JSWorkerMessage *msg) -{ - size_t i; - /* free the SAB */ - for(i = 0; i < msg->sab_tab_len; i++) { - js_sab_free(NULL, msg->sab_tab[i]); - } - free(msg->sab_tab); - free(msg->data); - free(msg); -} - -static void js_free_message_pipe(JSWorkerMessagePipe *ps) -{ - struct list_head *el, *el1; - JSWorkerMessage *msg; - int ref_count; - - if (!ps) - return; - - ref_count = atomic_add_int(&ps->ref_count, -1); - assert(ref_count >= 0); - if (ref_count == 0) { - list_for_each_safe(el, el1, &ps->msg_queue) { - msg = list_entry(el, JSWorkerMessage, link); - js_free_message(msg); - } - pthread_mutex_destroy(&ps->mutex); - close(ps->read_fd); - close(ps->write_fd); - free(ps); - } -} - -static void js_free_port(JSRuntime *rt, JSWorkerMessageHandler *port) -{ - if (port) { - js_free_message_pipe(port->recv_pipe); - JS_FreeValueRT(rt, port->on_message_func); - list_del(&port->link); - js_free_rt(rt, port); - } -} - -static void js_worker_finalizer(JSRuntime *rt, JSValue val) -{ - JSWorkerData *worker = JS_GetOpaque(val, js_worker_class_id); - if (worker) { - js_free_message_pipe(worker->recv_pipe); - js_free_message_pipe(worker->send_pipe); - js_free_port(rt, worker->msg_handler); - js_free_rt(rt, worker); - } -} - -static JSClassDef js_worker_class = { - "Worker", - .finalizer = js_worker_finalizer, -}; - -static void *worker_func(void *opaque) -{ - WorkerFuncArgs *args = opaque; - JSRuntime *rt; - JSThreadState *ts; - JSContext *ctx; - JSValue promise; - - rt = JS_NewRuntime(); - if (rt == NULL) { - fprintf(stderr, "JS_NewRuntime failure"); - exit(1); - } - js_std_init_handlers(rt); - - JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL); - - /* set the pipe to communicate with the parent */ - ts = JS_GetRuntimeOpaque(rt); - ts->recv_pipe = args->recv_pipe; - ts->send_pipe = args->send_pipe; - - /* function pointer to avoid linking the whole JS_NewContext() if - not needed */ - ctx = js_worker_new_context_func(rt); - if (ctx == NULL) { - fprintf(stderr, "JS_NewContext failure"); - } - - JS_SetCanBlock(rt, TRUE); - - js_std_add_helpers(ctx, -1, NULL); - - promise = JS_LoadModule(ctx, args->basename, args->filename); - if (JS_IsException(promise)) - js_std_dump_error(ctx); - /* XXX: check */ - JS_FreeValue(ctx, promise); - free(args->filename); - free(args->basename); - free(args); - - js_std_loop(ctx); - - JS_FreeContext(ctx); - js_std_free_handlers(rt); - JS_FreeRuntime(rt); - return NULL; -} - -static JSValue js_worker_ctor_internal(JSContext *ctx, JSValueConst new_target, - JSWorkerMessagePipe *recv_pipe, - JSWorkerMessagePipe *send_pipe) -{ - JSValue obj = JS_UNDEFINED, proto; - JSWorkerData *s; - - /* create the object */ - if (JS_IsUndefined(new_target)) { - proto = JS_GetClassProto(ctx, js_worker_class_id); - } else { - proto = JS_GetPropertyStr(ctx, new_target, "prototype"); - if (JS_IsException(proto)) - goto fail; - } - obj = JS_NewObjectProtoClass(ctx, proto, js_worker_class_id); - JS_FreeValue(ctx, proto); - if (JS_IsException(obj)) - goto fail; - s = js_mallocz(ctx, sizeof(*s)); - if (!s) - goto fail; - s->recv_pipe = js_dup_message_pipe(recv_pipe); - s->send_pipe = js_dup_message_pipe(send_pipe); - - JS_SetOpaque(obj, s); - return obj; - fail: - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; -} - -static JSValue js_worker_ctor(JSContext *ctx, JSValueConst new_target, - int argc, JSValueConst *argv) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - WorkerFuncArgs *args = NULL; - pthread_t tid; - pthread_attr_t attr; - JSValue obj = JS_UNDEFINED; - int ret; - const char *filename = NULL, *basename; - JSAtom basename_atom; - - /* XXX: in order to avoid problems with resource liberation, we - don't support creating workers inside workers */ - if (!is_main_thread(rt)) - return JS_ThrowTypeError(ctx, "cannot create a worker inside a worker"); - - /* base name, assuming the calling function is a normal JS - function */ - basename_atom = JS_GetScriptOrModuleName(ctx, 1); - if (basename_atom == JS_ATOM_NULL) { - return JS_ThrowTypeError(ctx, "could not determine calling script or module name"); - } - basename = JS_AtomToCString(ctx, basename_atom); - JS_FreeAtom(ctx, basename_atom); - if (!basename) - goto fail; - - /* module name */ - filename = JS_ToCString(ctx, argv[0]); - if (!filename) - goto fail; - - args = malloc(sizeof(*args)); - if (!args) - goto oom_fail; - memset(args, 0, sizeof(*args)); - args->filename = strdup(filename); - args->basename = strdup(basename); - - /* ports */ - args->recv_pipe = js_new_message_pipe(); - if (!args->recv_pipe) - goto oom_fail; - args->send_pipe = js_new_message_pipe(); - if (!args->send_pipe) - goto oom_fail; - - obj = js_worker_ctor_internal(ctx, new_target, - args->send_pipe, args->recv_pipe); - if (JS_IsException(obj)) - goto fail; - - pthread_attr_init(&attr); - /* no join at the end */ - pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); - ret = pthread_create(&tid, &attr, worker_func, args); - pthread_attr_destroy(&attr); - if (ret != 0) { - JS_ThrowTypeError(ctx, "could not create worker"); - goto fail; - } - JS_FreeCString(ctx, basename); - JS_FreeCString(ctx, filename); - return obj; - oom_fail: - JS_ThrowOutOfMemory(ctx); - fail: - JS_FreeCString(ctx, basename); - JS_FreeCString(ctx, filename); - if (args) { - free(args->filename); - free(args->basename); - js_free_message_pipe(args->recv_pipe); - js_free_message_pipe(args->send_pipe); - free(args); - } - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; -} - -static JSValue js_worker_postMessage(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id); - JSWorkerMessagePipe *ps; - size_t data_len, sab_tab_len, i; - uint8_t *data; - JSWorkerMessage *msg; - uint8_t **sab_tab; - - if (!worker) - return JS_EXCEPTION; - - data = JS_WriteObject2(ctx, &data_len, argv[0], - JS_WRITE_OBJ_SAB | JS_WRITE_OBJ_REFERENCE, - &sab_tab, &sab_tab_len); - if (!data) - return JS_EXCEPTION; - - msg = malloc(sizeof(*msg)); - if (!msg) - goto fail; - msg->data = NULL; - msg->sab_tab = NULL; - - /* must reallocate because the allocator may be different */ - msg->data = malloc(data_len); - if (!msg->data) - goto fail; - memcpy(msg->data, data, data_len); - msg->data_len = data_len; - - msg->sab_tab = malloc(sizeof(msg->sab_tab[0]) * sab_tab_len); - if (!msg->sab_tab) - goto fail; - memcpy(msg->sab_tab, sab_tab, sizeof(msg->sab_tab[0]) * sab_tab_len); - msg->sab_tab_len = sab_tab_len; - - js_free(ctx, data); - js_free(ctx, sab_tab); - - /* increment the SAB reference counts */ - for(i = 0; i < msg->sab_tab_len; i++) { - js_sab_dup(NULL, msg->sab_tab[i]); - } - - ps = worker->send_pipe; - pthread_mutex_lock(&ps->mutex); - /* indicate that data is present */ - if (list_empty(&ps->msg_queue)) { - uint8_t ch = '\0'; - int ret; - for(;;) { - ret = write(ps->write_fd, &ch, 1); - if (ret == 1) - break; - if (ret < 0 && (errno != EAGAIN || errno != EINTR)) - break; - } - } - list_add_tail(&msg->link, &ps->msg_queue); - pthread_mutex_unlock(&ps->mutex); - return JS_UNDEFINED; - fail: - if (msg) { - free(msg->data); - free(msg->sab_tab); - free(msg); - } - js_free(ctx, data); - js_free(ctx, sab_tab); - return JS_EXCEPTION; - -} - -static JSValue js_worker_set_onmessage(JSContext *ctx, JSValueConst this_val, - JSValueConst func) -{ - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id); - JSWorkerMessageHandler *port; - - if (!worker) - return JS_EXCEPTION; - - port = worker->msg_handler; - if (JS_IsNull(func)) { - if (port) { - js_free_port(rt, port); - worker->msg_handler = NULL; - } - } else { - if (!JS_IsFunction(ctx, func)) - return JS_ThrowTypeError(ctx, "not a function"); - if (!port) { - port = js_mallocz(ctx, sizeof(*port)); - if (!port) - return JS_EXCEPTION; - port->recv_pipe = js_dup_message_pipe(worker->recv_pipe); - port->on_message_func = JS_NULL; - list_add_tail(&port->link, &ts->port_list); - worker->msg_handler = port; - } - JS_FreeValue(ctx, port->on_message_func); - port->on_message_func = JS_DupValue(ctx, func); - } - return JS_UNDEFINED; -} - -static JSValue js_worker_get_onmessage(JSContext *ctx, JSValueConst this_val) -{ - JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id); - JSWorkerMessageHandler *port; - if (!worker) - return JS_EXCEPTION; - port = worker->msg_handler; - if (port) { - return JS_DupValue(ctx, port->on_message_func); - } else { - return JS_NULL; - } -} - -static const JSCFunctionListEntry js_worker_proto_funcs[] = { - JS_CFUNC_DEF("postMessage", 1, js_worker_postMessage ), - JS_CGETSET_DEF("onmessage", js_worker_get_onmessage, js_worker_set_onmessage ), -}; - -#endif /* USE_WORKER */ - -void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt)) -{ -#ifdef USE_WORKER - js_worker_new_context_func = func; -#endif -} - -#if defined(_WIN32) -#define OS_PLATFORM "win32" -#elif defined(__APPLE__) -#define OS_PLATFORM "darwin" -#elif defined(EMSCRIPTEN) -#define OS_PLATFORM "js" -#else -#define OS_PLATFORM "linux" -#endif - -#define OS_FLAG(x) JS_PROP_INT32_DEF(#x, x, JS_PROP_CONFIGURABLE ) - -static const JSCFunctionListEntry js_os_funcs[] = { - JS_CFUNC_DEF("open", 2, js_os_open ), - OS_FLAG(O_RDONLY), - OS_FLAG(O_WRONLY), - OS_FLAG(O_RDWR), - OS_FLAG(O_APPEND), - OS_FLAG(O_CREAT), - OS_FLAG(O_EXCL), - OS_FLAG(O_TRUNC), -#if defined(_WIN32) - OS_FLAG(O_BINARY), - OS_FLAG(O_TEXT), -#endif - JS_CFUNC_DEF("close", 1, js_os_close ), - JS_CFUNC_DEF("seek", 3, js_os_seek ), - JS_CFUNC_MAGIC_DEF("read", 4, js_os_read_write, 0 ), - JS_CFUNC_MAGIC_DEF("write", 4, js_os_read_write, 1 ), - JS_CFUNC_DEF("isatty", 1, js_os_isatty ), - JS_CFUNC_DEF("ttyGetWinSize", 1, js_os_ttyGetWinSize ), - JS_CFUNC_DEF("ttySetRaw", 1, js_os_ttySetRaw ), - JS_CFUNC_DEF("remove", 1, js_os_remove ), - JS_CFUNC_DEF("rename", 2, js_os_rename ), - JS_CFUNC_MAGIC_DEF("setReadHandler", 2, js_os_setReadHandler, 0 ), - JS_CFUNC_MAGIC_DEF("setWriteHandler", 2, js_os_setReadHandler, 1 ), - JS_CFUNC_DEF("signal", 2, js_os_signal ), - OS_FLAG(SIGINT), - OS_FLAG(SIGABRT), - OS_FLAG(SIGFPE), - OS_FLAG(SIGILL), - OS_FLAG(SIGSEGV), - OS_FLAG(SIGTERM), -#if !defined(_WIN32) - OS_FLAG(SIGQUIT), - OS_FLAG(SIGPIPE), - OS_FLAG(SIGALRM), - OS_FLAG(SIGUSR1), - OS_FLAG(SIGUSR2), - OS_FLAG(SIGCHLD), - OS_FLAG(SIGCONT), - OS_FLAG(SIGSTOP), - OS_FLAG(SIGTSTP), - OS_FLAG(SIGTTIN), - OS_FLAG(SIGTTOU), -#endif - JS_CFUNC_DEF("now", 0, js_os_now ), - JS_CFUNC_DEF("setTimeout", 2, js_os_setTimeout ), - JS_CFUNC_DEF("clearTimeout", 1, js_os_clearTimeout ), - JS_CFUNC_DEF("sleepAsync", 1, js_os_sleepAsync ), - JS_PROP_STRING_DEF("platform", OS_PLATFORM, 0 ), - JS_CFUNC_DEF("getcwd", 0, js_os_getcwd ), - JS_CFUNC_DEF("chdir", 0, js_os_chdir ), - JS_CFUNC_DEF("mkdir", 1, js_os_mkdir ), - JS_CFUNC_DEF("readdir", 1, js_os_readdir ), - /* st_mode constants */ - OS_FLAG(S_IFMT), - OS_FLAG(S_IFIFO), - OS_FLAG(S_IFCHR), - OS_FLAG(S_IFDIR), - OS_FLAG(S_IFBLK), - OS_FLAG(S_IFREG), -#if !defined(_WIN32) - OS_FLAG(S_IFSOCK), - OS_FLAG(S_IFLNK), - OS_FLAG(S_ISGID), - OS_FLAG(S_ISUID), -#endif - JS_CFUNC_MAGIC_DEF("stat", 1, js_os_stat, 0 ), - JS_CFUNC_DEF("utimes", 3, js_os_utimes ), - JS_CFUNC_DEF("sleep", 1, js_os_sleep ), - JS_CFUNC_DEF("realpath", 1, js_os_realpath ), -#if !defined(_WIN32) - JS_CFUNC_MAGIC_DEF("lstat", 1, js_os_stat, 1 ), - JS_CFUNC_DEF("symlink", 2, js_os_symlink ), - JS_CFUNC_DEF("readlink", 1, js_os_readlink ), - JS_CFUNC_DEF("exec", 1, js_os_exec ), - JS_CFUNC_DEF("getpid", 0, js_os_getpid ), - JS_CFUNC_DEF("waitpid", 2, js_os_waitpid ), - OS_FLAG(WNOHANG), - JS_CFUNC_DEF("pipe", 0, js_os_pipe ), - JS_CFUNC_DEF("kill", 2, js_os_kill ), - JS_CFUNC_DEF("dup", 1, js_os_dup ), - JS_CFUNC_DEF("dup2", 2, js_os_dup2 ), -#endif -}; - -static int js_os_init(JSContext *ctx, JSModuleDef *m) -{ - os_poll_func = js_os_poll; - - /* OSTimer class */ - JS_NewClassID(&js_os_timer_class_id); - JS_NewClass(JS_GetRuntime(ctx), js_os_timer_class_id, &js_os_timer_class); - -#ifdef USE_WORKER - { - JSRuntime *rt = JS_GetRuntime(ctx); - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - JSValue proto, obj; - /* Worker class */ - JS_NewClassID(&js_worker_class_id); - JS_NewClass(JS_GetRuntime(ctx), js_worker_class_id, &js_worker_class); - proto = JS_NewObject(ctx); - JS_SetPropertyFunctionList(ctx, proto, js_worker_proto_funcs, countof(js_worker_proto_funcs)); - - obj = JS_NewCFunction2(ctx, js_worker_ctor, "Worker", 1, - JS_CFUNC_constructor, 0); - JS_SetConstructor(ctx, obj, proto); - - JS_SetClassProto(ctx, js_worker_class_id, proto); - - /* set 'Worker.parent' if necessary */ - if (ts->recv_pipe && ts->send_pipe) { - JS_DefinePropertyValueStr(ctx, obj, "parent", - js_worker_ctor_internal(ctx, JS_UNDEFINED, ts->recv_pipe, ts->send_pipe), - JS_PROP_C_W_E); - } - - JS_SetModuleExport(ctx, m, "Worker", obj); - } -#endif /* USE_WORKER */ - - return JS_SetModuleExportList(ctx, m, js_os_funcs, - countof(js_os_funcs)); -} - -JSModuleDef *js_init_module_os(JSContext *ctx, const char *module_name) -{ - JSModuleDef *m; - m = JS_NewCModule(ctx, module_name, js_os_init); - if (!m) - return NULL; - JS_AddModuleExportList(ctx, m, js_os_funcs, countof(js_os_funcs)); -#ifdef USE_WORKER - JS_AddModuleExport(ctx, m, "Worker"); -#endif - return m; -} - -/**********************************************************/ - -static JSValue js_print(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - int i; - const char *str; - size_t len; - - for(i = 0; i < argc; i++) { - if (i != 0) - putchar(' '); - str = JS_ToCStringLen(ctx, &len, argv[i]); - if (!str) - return JS_EXCEPTION; - fwrite(str, 1, len, stdout); - JS_FreeCString(ctx, str); - } - putchar('\n'); - return JS_UNDEFINED; -} - -void js_std_add_helpers(JSContext *ctx, int argc, char **argv) -{ - JSValue global_obj, console, args; - int i; - - /* XXX: should these global definitions be enumerable? */ - global_obj = JS_GetGlobalObject(ctx); - - console = JS_NewObject(ctx); - JS_SetPropertyStr(ctx, console, "log", - JS_NewCFunction(ctx, js_print, "log", 1)); - JS_SetPropertyStr(ctx, global_obj, "console", console); - - /* same methods as the mozilla JS shell */ - if (argc >= 0) { - args = JS_NewArray(ctx); - for(i = 0; i < argc; i++) { - JS_SetPropertyUint32(ctx, args, i, JS_NewString(ctx, argv[i])); - } - JS_SetPropertyStr(ctx, global_obj, "scriptArgs", args); - } - - JS_SetPropertyStr(ctx, global_obj, "print", - JS_NewCFunction(ctx, js_print, "print", 1)); - JS_SetPropertyStr(ctx, global_obj, "__loadScript", - JS_NewCFunction(ctx, js_loadScript, "__loadScript", 1)); - - JS_FreeValue(ctx, global_obj); -} - -void js_std_init_handlers(JSRuntime *rt) -{ - JSThreadState *ts; - - ts = malloc(sizeof(*ts)); - if (!ts) { - fprintf(stderr, "Could not allocate memory for the worker"); - exit(1); - } - memset(ts, 0, sizeof(*ts)); - init_list_head(&ts->os_rw_handlers); - init_list_head(&ts->os_signal_handlers); - init_list_head(&ts->os_timers); - init_list_head(&ts->port_list); - - JS_SetRuntimeOpaque(rt, ts); - -#ifdef USE_WORKER - /* set the SharedArrayBuffer memory handlers */ - { - JSSharedArrayBufferFunctions sf; - memset(&sf, 0, sizeof(sf)); - sf.sab_alloc = js_sab_alloc; - sf.sab_free = js_sab_free; - sf.sab_dup = js_sab_dup; - JS_SetSharedArrayBufferFunctions(rt, &sf); - } -#endif -} - -void js_std_free_handlers(JSRuntime *rt) -{ - JSThreadState *ts = JS_GetRuntimeOpaque(rt); - struct list_head *el, *el1; - - list_for_each_safe(el, el1, &ts->os_rw_handlers) { - JSOSRWHandler *rh = list_entry(el, JSOSRWHandler, link); - free_rw_handler(rt, rh); - } - - list_for_each_safe(el, el1, &ts->os_signal_handlers) { - JSOSSignalHandler *sh = list_entry(el, JSOSSignalHandler, link); - free_sh(rt, sh); - } - - list_for_each_safe(el, el1, &ts->os_timers) { - JSOSTimer *th = list_entry(el, JSOSTimer, link); - unlink_timer(rt, th); - if (!th->has_object) - free_timer(rt, th); - } - -#ifdef USE_WORKER - /* XXX: free port_list ? */ - js_free_message_pipe(ts->recv_pipe); - js_free_message_pipe(ts->send_pipe); -#endif - - free(ts); - JS_SetRuntimeOpaque(rt, NULL); /* fail safe */ -} - -static void js_dump_obj(JSContext *ctx, FILE *f, JSValueConst val) -{ - const char *str; - - str = JS_ToCString(ctx, val); - if (str) { - fprintf(f, "%s\n", str); - JS_FreeCString(ctx, str); - } else { - fprintf(f, "[exception]\n"); - } -} - -static void js_std_dump_error1(JSContext *ctx, JSValueConst exception_val) -{ - JSValue val; - BOOL is_error; - - is_error = JS_IsError(ctx, exception_val); - js_dump_obj(ctx, stderr, exception_val); - if (is_error) { - val = JS_GetPropertyStr(ctx, exception_val, "stack"); - if (!JS_IsUndefined(val)) { - js_dump_obj(ctx, stderr, val); - } - JS_FreeValue(ctx, val); - } -} - -void js_std_dump_error(JSContext *ctx) -{ - JSValue exception_val; - - exception_val = JS_GetException(ctx); - js_std_dump_error1(ctx, exception_val); - JS_FreeValue(ctx, exception_val); -} - -void js_std_promise_rejection_tracker(JSContext *ctx, JSValueConst promise, - JSValueConst reason, - BOOL is_handled, void *opaque) -{ - if (!is_handled) { - fprintf(stderr, "Possibly unhandled promise rejection: "); - js_std_dump_error1(ctx, reason); - } -} - -/* main loop which calls the user JS callbacks */ -void js_std_loop(JSContext *ctx) -{ - JSContext *ctx1; - int err; - - for(;;) { - /* execute the pending jobs */ - for(;;) { - err = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1); - if (err <= 0) { - if (err < 0) { - js_std_dump_error(ctx1); - } - break; - } - } - - if (!os_poll_func || os_poll_func(ctx)) - break; - } -} - -void js_std_eval_binary(JSContext *ctx, const uint8_t *buf, size_t buf_len, - int load_only) -{ - JSValue obj, val; - obj = JS_ReadObject(ctx, buf, buf_len, JS_READ_OBJ_BYTECODE); - if (JS_IsException(obj)) - goto exception; - if (load_only) { - if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) { - js_module_set_import_meta(ctx, obj, FALSE, FALSE); - } - } else { - if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) { - if (JS_ResolveModule(ctx, obj) < 0) { - JS_FreeValue(ctx, obj); - goto exception; - } - js_module_set_import_meta(ctx, obj, FALSE, TRUE); - } - val = JS_EvalFunction(ctx, obj); - if (JS_IsException(val)) { - exception: - js_std_dump_error(ctx); - exit(1); - } - JS_FreeValue(ctx, val); - } -} diff --git a/deps/quickjs/quickjs-libc.h b/deps/quickjs/quickjs-libc.h deleted file mode 100644 index fbbe5b01..00000000 --- a/deps/quickjs/quickjs-libc.h +++ /dev/null @@ -1,59 +0,0 @@ -/* - * QuickJS C library - * - * Copyright (c) 2017-2018 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#ifndef QUICKJS_LIBC_H -#define QUICKJS_LIBC_H - -#include -#include - -#include "quickjs.h" - -#ifdef __cplusplus -extern "C" { -#endif - -JSModuleDef *js_init_module_std(JSContext *ctx, const char *module_name); -JSModuleDef *js_init_module_os(JSContext *ctx, const char *module_name); -void js_std_add_helpers(JSContext *ctx, int argc, char **argv); -void js_std_loop(JSContext *ctx); -void js_std_init_handlers(JSRuntime *rt); -void js_std_free_handlers(JSRuntime *rt); -void js_std_dump_error(JSContext *ctx); -uint8_t *js_load_file(JSContext *ctx, size_t *pbuf_len, const char *filename); -int js_module_set_import_meta(JSContext *ctx, JSValueConst func_val, - JS_BOOL use_realpath, JS_BOOL is_main); -JSModuleDef *js_module_loader(JSContext *ctx, - const char *module_name, void *opaque); -void js_std_eval_binary(JSContext *ctx, const uint8_t *buf, size_t buf_len, - int flags); -void js_std_promise_rejection_tracker(JSContext *ctx, JSValueConst promise, - JSValueConst reason, - JS_BOOL is_handled, void *opaque); -void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt)); - -#ifdef __cplusplus -} /* extern "C" { */ -#endif - -#endif /* QUICKJS_LIBC_H */ diff --git a/deps/quickjs/quickjs-opcode.h b/deps/quickjs/quickjs-opcode.h deleted file mode 100644 index 6d2d6e9f..00000000 --- a/deps/quickjs/quickjs-opcode.h +++ /dev/null @@ -1,372 +0,0 @@ -/* - * QuickJS opcode definitions - * - * Copyright (c) 2017-2018 Fabrice Bellard - * Copyright (c) 2017-2018 Charlie Gordon - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#ifdef FMT -FMT(none) -FMT(none_int) -FMT(none_loc) -FMT(none_arg) -FMT(none_var_ref) -FMT(u8) -FMT(i8) -FMT(loc8) -FMT(const8) -FMT(label8) -FMT(u16) -FMT(i16) -FMT(label16) -FMT(npop) -FMT(npopx) -FMT(npop_u16) -FMT(loc) -FMT(arg) -FMT(var_ref) -FMT(u32) -FMT(i32) -FMT(const) -FMT(label) -FMT(atom) -FMT(atom_u8) -FMT(atom_u16) -FMT(atom_label_u8) -FMT(atom_label_u16) -FMT(label_u16) -#undef FMT -#endif /* FMT */ - -#ifdef DEF - -#ifndef def -#define def(id, size, n_pop, n_push, f) DEF(id, size, n_pop, n_push, f) -#endif - -DEF(invalid, 1, 0, 0, none) /* never emitted */ - -/* push values */ -DEF( push_i32, 5, 0, 1, i32) -DEF( push_const, 5, 0, 1, const) -DEF( fclosure, 5, 0, 1, const) /* must follow push_const */ -DEF(push_atom_value, 5, 0, 1, atom) -DEF( private_symbol, 5, 0, 1, atom) -DEF( undefined, 1, 0, 1, none) -DEF( null, 1, 0, 1, none) -DEF( push_this, 1, 0, 1, none) /* only used at the start of a function */ -DEF( push_false, 1, 0, 1, none) -DEF( push_true, 1, 0, 1, none) -DEF( object, 1, 0, 1, none) -DEF( special_object, 2, 0, 1, u8) /* only used at the start of a function */ -DEF( rest, 3, 0, 1, u16) /* only used at the start of a function */ - -DEF( drop, 1, 1, 0, none) /* a -> */ -DEF( nip, 1, 2, 1, none) /* a b -> b */ -DEF( nip1, 1, 3, 2, none) /* a b c -> b c */ -DEF( dup, 1, 1, 2, none) /* a -> a a */ -DEF( dup1, 1, 2, 3, none) /* a b -> a a b */ -DEF( dup2, 1, 2, 4, none) /* a b -> a b a b */ -DEF( dup3, 1, 3, 6, none) /* a b c -> a b c a b c */ -DEF( insert2, 1, 2, 3, none) /* obj a -> a obj a (dup_x1) */ -DEF( insert3, 1, 3, 4, none) /* obj prop a -> a obj prop a (dup_x2) */ -DEF( insert4, 1, 4, 5, none) /* this obj prop a -> a this obj prop a */ -DEF( perm3, 1, 3, 3, none) /* obj a b -> a obj b */ -DEF( perm4, 1, 4, 4, none) /* obj prop a b -> a obj prop b */ -DEF( perm5, 1, 5, 5, none) /* this obj prop a b -> a this obj prop b */ -DEF( swap, 1, 2, 2, none) /* a b -> b a */ -DEF( swap2, 1, 4, 4, none) /* a b c d -> c d a b */ -DEF( rot3l, 1, 3, 3, none) /* x a b -> a b x */ -DEF( rot3r, 1, 3, 3, none) /* a b x -> x a b */ -DEF( rot4l, 1, 4, 4, none) /* x a b c -> a b c x */ -DEF( rot5l, 1, 5, 5, none) /* x a b c d -> a b c d x */ - -DEF(call_constructor, 3, 2, 1, npop) /* func new.target args -> ret. arguments are not counted in n_pop */ -DEF( call, 3, 1, 1, npop) /* arguments are not counted in n_pop */ -DEF( tail_call, 3, 1, 0, npop) /* arguments are not counted in n_pop */ -DEF( call_method, 3, 2, 1, npop) /* arguments are not counted in n_pop */ -DEF(tail_call_method, 3, 2, 0, npop) /* arguments are not counted in n_pop */ -DEF( array_from, 3, 0, 1, npop) /* arguments are not counted in n_pop */ -DEF( apply, 3, 3, 1, u16) -DEF( return, 1, 1, 0, none) -DEF( return_undef, 1, 0, 0, none) -DEF(check_ctor_return, 1, 1, 2, none) -DEF( check_ctor, 1, 0, 0, none) -DEF( check_brand, 1, 2, 2, none) /* this_obj func -> this_obj func */ -DEF( add_brand, 1, 2, 0, none) /* this_obj home_obj -> */ -DEF( return_async, 1, 1, 0, none) -DEF( throw, 1, 1, 0, none) -DEF( throw_error, 6, 0, 0, atom_u8) -DEF( eval, 5, 1, 1, npop_u16) /* func args... -> ret_val */ -DEF( apply_eval, 3, 2, 1, u16) /* func array -> ret_eval */ -DEF( regexp, 1, 2, 1, none) /* create a RegExp object from the pattern and a - bytecode string */ -DEF( get_super, 1, 1, 1, none) -DEF( import, 1, 1, 1, none) /* dynamic module import */ - -DEF( check_var, 5, 0, 1, atom) /* check if a variable exists */ -DEF( get_var_undef, 5, 0, 1, atom) /* push undefined if the variable does not exist */ -DEF( get_var, 5, 0, 1, atom) /* throw an exception if the variable does not exist */ -DEF( put_var, 5, 1, 0, atom) /* must come after get_var */ -DEF( put_var_init, 5, 1, 0, atom) /* must come after put_var. Used to initialize a global lexical variable */ -DEF( put_var_strict, 5, 2, 0, atom) /* for strict mode variable write */ - -DEF( get_ref_value, 1, 2, 3, none) -DEF( put_ref_value, 1, 3, 0, none) - -DEF( define_var, 6, 0, 0, atom_u8) -DEF(check_define_var, 6, 0, 0, atom_u8) -DEF( define_func, 6, 1, 0, atom_u8) -DEF( get_field, 5, 1, 1, atom) -DEF( get_field2, 5, 1, 2, atom) -DEF( put_field, 5, 2, 0, atom) -DEF( get_private_field, 1, 2, 1, none) /* obj prop -> value */ -DEF( put_private_field, 1, 3, 0, none) /* obj value prop -> */ -DEF(define_private_field, 1, 3, 1, none) /* obj prop value -> obj */ -DEF( get_array_el, 1, 2, 1, none) -DEF( get_array_el2, 1, 2, 2, none) /* obj prop -> obj value */ -DEF( put_array_el, 1, 3, 0, none) -DEF(get_super_value, 1, 3, 1, none) /* this obj prop -> value */ -DEF(put_super_value, 1, 4, 0, none) /* this obj prop value -> */ -DEF( define_field, 5, 2, 1, atom) -DEF( set_name, 5, 1, 1, atom) -DEF(set_name_computed, 1, 2, 2, none) -DEF( set_proto, 1, 2, 1, none) -DEF(set_home_object, 1, 2, 2, none) -DEF(define_array_el, 1, 3, 2, none) -DEF( append, 1, 3, 2, none) /* append enumerated object, update length */ -DEF(copy_data_properties, 2, 3, 3, u8) -DEF( define_method, 6, 2, 1, atom_u8) -DEF(define_method_computed, 2, 3, 1, u8) /* must come after define_method */ -DEF( define_class, 6, 2, 2, atom_u8) /* parent ctor -> ctor proto */ -DEF( define_class_computed, 6, 3, 3, atom_u8) /* field_name parent ctor -> field_name ctor proto (class with computed name) */ - -DEF( get_loc, 3, 0, 1, loc) -DEF( put_loc, 3, 1, 0, loc) /* must come after get_loc */ -DEF( set_loc, 3, 1, 1, loc) /* must come after put_loc */ -DEF( get_arg, 3, 0, 1, arg) -DEF( put_arg, 3, 1, 0, arg) /* must come after get_arg */ -DEF( set_arg, 3, 1, 1, arg) /* must come after put_arg */ -DEF( get_var_ref, 3, 0, 1, var_ref) -DEF( put_var_ref, 3, 1, 0, var_ref) /* must come after get_var_ref */ -DEF( set_var_ref, 3, 1, 1, var_ref) /* must come after put_var_ref */ -DEF(set_loc_uninitialized, 3, 0, 0, loc) -DEF( get_loc_check, 3, 0, 1, loc) -DEF( put_loc_check, 3, 1, 0, loc) /* must come after get_loc_check */ -DEF( put_loc_check_init, 3, 1, 0, loc) -DEF(get_loc_checkthis, 3, 0, 1, loc) -DEF(get_var_ref_check, 3, 0, 1, var_ref) -DEF(put_var_ref_check, 3, 1, 0, var_ref) /* must come after get_var_ref_check */ -DEF(put_var_ref_check_init, 3, 1, 0, var_ref) -DEF( close_loc, 3, 0, 0, loc) -DEF( if_false, 5, 1, 0, label) -DEF( if_true, 5, 1, 0, label) /* must come after if_false */ -DEF( goto, 5, 0, 0, label) /* must come after if_true */ -DEF( catch, 5, 0, 1, label) -DEF( gosub, 5, 0, 0, label) /* used to execute the finally block */ -DEF( ret, 1, 1, 0, none) /* used to return from the finally block */ -DEF( nip_catch, 1, 2, 1, none) /* catch ... a -> a */ - -DEF( to_object, 1, 1, 1, none) -//DEF( to_string, 1, 1, 1, none) -DEF( to_propkey, 1, 1, 1, none) -DEF( to_propkey2, 1, 2, 2, none) - -DEF( with_get_var, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ -DEF( with_put_var, 10, 2, 1, atom_label_u8) /* must be in the same order as scope_xxx */ -DEF(with_delete_var, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ -DEF( with_make_ref, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ -DEF( with_get_ref, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ -DEF(with_get_ref_undef, 10, 1, 0, atom_label_u8) - -DEF( make_loc_ref, 7, 0, 2, atom_u16) -DEF( make_arg_ref, 7, 0, 2, atom_u16) -DEF(make_var_ref_ref, 7, 0, 2, atom_u16) -DEF( make_var_ref, 5, 0, 2, atom) - -DEF( for_in_start, 1, 1, 1, none) -DEF( for_of_start, 1, 1, 3, none) -DEF(for_await_of_start, 1, 1, 3, none) -DEF( for_in_next, 1, 1, 3, none) -DEF( for_of_next, 2, 3, 5, u8) -DEF(iterator_check_object, 1, 1, 1, none) -DEF(iterator_get_value_done, 1, 1, 2, none) -DEF( iterator_close, 1, 3, 0, none) -DEF( iterator_next, 1, 4, 4, none) -DEF( iterator_call, 2, 4, 5, u8) -DEF( initial_yield, 1, 0, 0, none) -DEF( yield, 1, 1, 2, none) -DEF( yield_star, 1, 1, 2, none) -DEF(async_yield_star, 1, 1, 2, none) -DEF( await, 1, 1, 1, none) - -/* arithmetic/logic operations */ -DEF( neg, 1, 1, 1, none) -DEF( plus, 1, 1, 1, none) -DEF( dec, 1, 1, 1, none) -DEF( inc, 1, 1, 1, none) -DEF( post_dec, 1, 1, 2, none) -DEF( post_inc, 1, 1, 2, none) -DEF( dec_loc, 2, 0, 0, loc8) -DEF( inc_loc, 2, 0, 0, loc8) -DEF( add_loc, 2, 1, 0, loc8) -DEF( not, 1, 1, 1, none) -DEF( lnot, 1, 1, 1, none) -DEF( typeof, 1, 1, 1, none) -DEF( delete, 1, 2, 1, none) -DEF( delete_var, 5, 0, 1, atom) - -DEF( mul, 1, 2, 1, none) -DEF( div, 1, 2, 1, none) -DEF( mod, 1, 2, 1, none) -DEF( add, 1, 2, 1, none) -DEF( sub, 1, 2, 1, none) -DEF( pow, 1, 2, 1, none) -DEF( shl, 1, 2, 1, none) -DEF( sar, 1, 2, 1, none) -DEF( shr, 1, 2, 1, none) -DEF( lt, 1, 2, 1, none) -DEF( lte, 1, 2, 1, none) -DEF( gt, 1, 2, 1, none) -DEF( gte, 1, 2, 1, none) -DEF( instanceof, 1, 2, 1, none) -DEF( in, 1, 2, 1, none) -DEF( eq, 1, 2, 1, none) -DEF( neq, 1, 2, 1, none) -DEF( strict_eq, 1, 2, 1, none) -DEF( strict_neq, 1, 2, 1, none) -DEF( and, 1, 2, 1, none) -DEF( xor, 1, 2, 1, none) -DEF( or, 1, 2, 1, none) -DEF(is_undefined_or_null, 1, 1, 1, none) -DEF( private_in, 1, 2, 1, none) -#ifdef CONFIG_BIGNUM -DEF( mul_pow10, 1, 2, 1, none) -DEF( math_mod, 1, 2, 1, none) -#endif -/* must be the last non short and non temporary opcode */ -DEF( nop, 1, 0, 0, none) - -/* temporary opcodes: never emitted in the final bytecode */ - -def( enter_scope, 3, 0, 0, u16) /* emitted in phase 1, removed in phase 2 */ -def( leave_scope, 3, 0, 0, u16) /* emitted in phase 1, removed in phase 2 */ - -def( label, 5, 0, 0, label) /* emitted in phase 1, removed in phase 3 */ - -/* the following opcodes must be in the same order as the 'with_x' and - get_var_undef, get_var and put_var opcodes */ -def(scope_get_var_undef, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */ -def( scope_get_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */ -def( scope_put_var, 7, 1, 0, atom_u16) /* emitted in phase 1, removed in phase 2 */ -def(scope_delete_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */ -def( scope_make_ref, 11, 0, 2, atom_label_u16) /* emitted in phase 1, removed in phase 2 */ -def( scope_get_ref, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */ -def(scope_put_var_init, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */ -def(scope_get_var_checkthis, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2, only used to return 'this' in derived class constructors */ -def(scope_get_private_field, 7, 1, 1, atom_u16) /* obj -> value, emitted in phase 1, removed in phase 2 */ -def(scope_get_private_field2, 7, 1, 2, atom_u16) /* obj -> obj value, emitted in phase 1, removed in phase 2 */ -def(scope_put_private_field, 7, 2, 0, atom_u16) /* obj value ->, emitted in phase 1, removed in phase 2 */ -def(scope_in_private_field, 7, 1, 1, atom_u16) /* obj -> res emitted in phase 1, removed in phase 2 */ -def(get_field_opt_chain, 5, 1, 1, atom) /* emitted in phase 1, removed in phase 2 */ -def(get_array_el_opt_chain, 1, 2, 1, none) /* emitted in phase 1, removed in phase 2 */ -def( set_class_name, 5, 1, 1, u32) /* emitted in phase 1, removed in phase 2 */ - -def( line_num, 5, 0, 0, u32) /* emitted in phase 1, removed in phase 3 */ - -#if SHORT_OPCODES -DEF( push_minus1, 1, 0, 1, none_int) -DEF( push_0, 1, 0, 1, none_int) -DEF( push_1, 1, 0, 1, none_int) -DEF( push_2, 1, 0, 1, none_int) -DEF( push_3, 1, 0, 1, none_int) -DEF( push_4, 1, 0, 1, none_int) -DEF( push_5, 1, 0, 1, none_int) -DEF( push_6, 1, 0, 1, none_int) -DEF( push_7, 1, 0, 1, none_int) -DEF( push_i8, 2, 0, 1, i8) -DEF( push_i16, 3, 0, 1, i16) -DEF( push_const8, 2, 0, 1, const8) -DEF( fclosure8, 2, 0, 1, const8) /* must follow push_const8 */ -DEF(push_empty_string, 1, 0, 1, none) - -DEF( get_loc8, 2, 0, 1, loc8) -DEF( put_loc8, 2, 1, 0, loc8) -DEF( set_loc8, 2, 1, 1, loc8) - -DEF( get_loc0, 1, 0, 1, none_loc) -DEF( get_loc1, 1, 0, 1, none_loc) -DEF( get_loc2, 1, 0, 1, none_loc) -DEF( get_loc3, 1, 0, 1, none_loc) -DEF( put_loc0, 1, 1, 0, none_loc) -DEF( put_loc1, 1, 1, 0, none_loc) -DEF( put_loc2, 1, 1, 0, none_loc) -DEF( put_loc3, 1, 1, 0, none_loc) -DEF( set_loc0, 1, 1, 1, none_loc) -DEF( set_loc1, 1, 1, 1, none_loc) -DEF( set_loc2, 1, 1, 1, none_loc) -DEF( set_loc3, 1, 1, 1, none_loc) -DEF( get_arg0, 1, 0, 1, none_arg) -DEF( get_arg1, 1, 0, 1, none_arg) -DEF( get_arg2, 1, 0, 1, none_arg) -DEF( get_arg3, 1, 0, 1, none_arg) -DEF( put_arg0, 1, 1, 0, none_arg) -DEF( put_arg1, 1, 1, 0, none_arg) -DEF( put_arg2, 1, 1, 0, none_arg) -DEF( put_arg3, 1, 1, 0, none_arg) -DEF( set_arg0, 1, 1, 1, none_arg) -DEF( set_arg1, 1, 1, 1, none_arg) -DEF( set_arg2, 1, 1, 1, none_arg) -DEF( set_arg3, 1, 1, 1, none_arg) -DEF( get_var_ref0, 1, 0, 1, none_var_ref) -DEF( get_var_ref1, 1, 0, 1, none_var_ref) -DEF( get_var_ref2, 1, 0, 1, none_var_ref) -DEF( get_var_ref3, 1, 0, 1, none_var_ref) -DEF( put_var_ref0, 1, 1, 0, none_var_ref) -DEF( put_var_ref1, 1, 1, 0, none_var_ref) -DEF( put_var_ref2, 1, 1, 0, none_var_ref) -DEF( put_var_ref3, 1, 1, 0, none_var_ref) -DEF( set_var_ref0, 1, 1, 1, none_var_ref) -DEF( set_var_ref1, 1, 1, 1, none_var_ref) -DEF( set_var_ref2, 1, 1, 1, none_var_ref) -DEF( set_var_ref3, 1, 1, 1, none_var_ref) - -DEF( get_length, 1, 1, 1, none) - -DEF( if_false8, 2, 1, 0, label8) -DEF( if_true8, 2, 1, 0, label8) /* must come after if_false8 */ -DEF( goto8, 2, 0, 0, label8) /* must come after if_true8 */ -DEF( goto16, 3, 0, 0, label16) - -DEF( call0, 1, 1, 1, npopx) -DEF( call1, 1, 1, 1, npopx) -DEF( call2, 1, 1, 1, npopx) -DEF( call3, 1, 1, 1, npopx) - -DEF( is_undefined, 1, 1, 1, none) -DEF( is_null, 1, 1, 1, none) -DEF(typeof_is_undefined, 1, 1, 1, none) -DEF( typeof_is_function, 1, 1, 1, none) -#endif - -#undef DEF -#undef def -#endif /* DEF */ diff --git a/deps/quickjs/quickjs.c b/deps/quickjs/quickjs.c deleted file mode 100644 index 4e58a98f..00000000 --- a/deps/quickjs/quickjs.c +++ /dev/null @@ -1,55546 +0,0 @@ -/* - * QuickJS Javascript Engine - * - * Copyright (c) 2017-2021 Fabrice Bellard - * Copyright (c) 2017-2021 Charlie Gordon - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#if defined(__APPLE__) -#include -#elif defined(__linux__) -#include -#elif defined(__FreeBSD__) -#include -#endif - -#include "cutils.h" -#include "list.h" -#include "quickjs.h" -#include "libregexp.h" -#include "libbf.h" - -#define OPTIMIZE 1 -#define SHORT_OPCODES 1 -#if defined(EMSCRIPTEN) -#define DIRECT_DISPATCH 0 -#else -#define DIRECT_DISPATCH 1 -#endif - -#if defined(__APPLE__) -#define MALLOC_OVERHEAD 0 -#else -#define MALLOC_OVERHEAD 8 -#endif - -#if !defined(_WIN32) -/* define it if printf uses the RNDN rounding mode instead of RNDNA */ -#define CONFIG_PRINTF_RNDN -#endif - -/* define to include Atomics.* operations which depend on the OS - threads */ -#if !defined(EMSCRIPTEN) -#define CONFIG_ATOMICS -#endif - -#if !defined(EMSCRIPTEN) -/* enable stack limitation */ -#define CONFIG_STACK_CHECK -#endif - - -/* dump object free */ -//#define DUMP_FREE -//#define DUMP_CLOSURE -/* dump the bytecode of the compiled functions: combination of bits - 1: dump pass 3 final byte code - 2: dump pass 2 code - 4: dump pass 1 code - 8: dump stdlib functions - 16: dump bytecode in hex - 32: dump line number table - 64: dump compute_stack_size - */ -//#define DUMP_BYTECODE (1) -/* dump the occurence of the automatic GC */ -//#define DUMP_GC -/* dump objects freed by the garbage collector */ -//#define DUMP_GC_FREE -/* dump objects leaking when freeing the runtime */ -//#define DUMP_LEAKS 1 -/* dump memory usage before running the garbage collector */ -//#define DUMP_MEM -//#define DUMP_OBJECTS /* dump objects in JS_FreeContext */ -//#define DUMP_ATOMS /* dump atoms in JS_FreeContext */ -//#define DUMP_SHAPES /* dump shapes in JS_FreeContext */ -//#define DUMP_MODULE_RESOLVE -//#define DUMP_PROMISE -//#define DUMP_READ_OBJECT - -/* test the GC by forcing it before each object allocation */ -//#define FORCE_GC_AT_MALLOC - -#ifdef CONFIG_ATOMICS -#include -#include -#include -#endif - -enum { - /* classid tag */ /* union usage | properties */ - JS_CLASS_OBJECT = 1, /* must be first */ - JS_CLASS_ARRAY, /* u.array | length */ - JS_CLASS_ERROR, - JS_CLASS_NUMBER, /* u.object_data */ - JS_CLASS_STRING, /* u.object_data */ - JS_CLASS_BOOLEAN, /* u.object_data */ - JS_CLASS_SYMBOL, /* u.object_data */ - JS_CLASS_ARGUMENTS, /* u.array | length */ - JS_CLASS_MAPPED_ARGUMENTS, /* | length */ - JS_CLASS_DATE, /* u.object_data */ - JS_CLASS_MODULE_NS, - JS_CLASS_C_FUNCTION, /* u.cfunc */ - JS_CLASS_BYTECODE_FUNCTION, /* u.func */ - JS_CLASS_BOUND_FUNCTION, /* u.bound_function */ - JS_CLASS_C_FUNCTION_DATA, /* u.c_function_data_record */ - JS_CLASS_GENERATOR_FUNCTION, /* u.func */ - JS_CLASS_FOR_IN_ITERATOR, /* u.for_in_iterator */ - JS_CLASS_REGEXP, /* u.regexp */ - JS_CLASS_ARRAY_BUFFER, /* u.array_buffer */ - JS_CLASS_SHARED_ARRAY_BUFFER, /* u.array_buffer */ - JS_CLASS_UINT8C_ARRAY, /* u.array (typed_array) */ - JS_CLASS_INT8_ARRAY, /* u.array (typed_array) */ - JS_CLASS_UINT8_ARRAY, /* u.array (typed_array) */ - JS_CLASS_INT16_ARRAY, /* u.array (typed_array) */ - JS_CLASS_UINT16_ARRAY, /* u.array (typed_array) */ - JS_CLASS_INT32_ARRAY, /* u.array (typed_array) */ - JS_CLASS_UINT32_ARRAY, /* u.array (typed_array) */ - JS_CLASS_BIG_INT64_ARRAY, /* u.array (typed_array) */ - JS_CLASS_BIG_UINT64_ARRAY, /* u.array (typed_array) */ - JS_CLASS_FLOAT32_ARRAY, /* u.array (typed_array) */ - JS_CLASS_FLOAT64_ARRAY, /* u.array (typed_array) */ - JS_CLASS_DATAVIEW, /* u.typed_array */ - JS_CLASS_BIG_INT, /* u.object_data */ -#ifdef CONFIG_BIGNUM - JS_CLASS_BIG_FLOAT, /* u.object_data */ - JS_CLASS_FLOAT_ENV, /* u.float_env */ - JS_CLASS_BIG_DECIMAL, /* u.object_data */ - JS_CLASS_OPERATOR_SET, /* u.operator_set */ -#endif - JS_CLASS_MAP, /* u.map_state */ - JS_CLASS_SET, /* u.map_state */ - JS_CLASS_WEAKMAP, /* u.map_state */ - JS_CLASS_WEAKSET, /* u.map_state */ - JS_CLASS_MAP_ITERATOR, /* u.map_iterator_data */ - JS_CLASS_SET_ITERATOR, /* u.map_iterator_data */ - JS_CLASS_ARRAY_ITERATOR, /* u.array_iterator_data */ - JS_CLASS_STRING_ITERATOR, /* u.array_iterator_data */ - JS_CLASS_REGEXP_STRING_ITERATOR, /* u.regexp_string_iterator_data */ - JS_CLASS_GENERATOR, /* u.generator_data */ - JS_CLASS_PROXY, /* u.proxy_data */ - JS_CLASS_PROMISE, /* u.promise_data */ - JS_CLASS_PROMISE_RESOLVE_FUNCTION, /* u.promise_function_data */ - JS_CLASS_PROMISE_REJECT_FUNCTION, /* u.promise_function_data */ - JS_CLASS_ASYNC_FUNCTION, /* u.func */ - JS_CLASS_ASYNC_FUNCTION_RESOLVE, /* u.async_function_data */ - JS_CLASS_ASYNC_FUNCTION_REJECT, /* u.async_function_data */ - JS_CLASS_ASYNC_FROM_SYNC_ITERATOR, /* u.async_from_sync_iterator_data */ - JS_CLASS_ASYNC_GENERATOR_FUNCTION, /* u.func */ - JS_CLASS_ASYNC_GENERATOR, /* u.async_generator_data */ - - JS_CLASS_INIT_COUNT, /* last entry for predefined classes */ -}; - -/* number of typed array types */ -#define JS_TYPED_ARRAY_COUNT (JS_CLASS_FLOAT64_ARRAY - JS_CLASS_UINT8C_ARRAY + 1) -static uint8_t const typed_array_size_log2[JS_TYPED_ARRAY_COUNT]; -#define typed_array_size_log2(classid) (typed_array_size_log2[(classid)- JS_CLASS_UINT8C_ARRAY]) - -typedef enum JSErrorEnum { - JS_EVAL_ERROR, - JS_RANGE_ERROR, - JS_REFERENCE_ERROR, - JS_SYNTAX_ERROR, - JS_TYPE_ERROR, - JS_URI_ERROR, - JS_INTERNAL_ERROR, - JS_AGGREGATE_ERROR, - - JS_NATIVE_ERROR_COUNT, /* number of different NativeError objects */ -} JSErrorEnum; - -#define JS_MAX_LOCAL_VARS 65535 -#define JS_STACK_SIZE_MAX 65534 -#define JS_STRING_LEN_MAX ((1 << 30) - 1) - -#define __exception __attribute__((warn_unused_result)) - -typedef struct JSShape JSShape; -typedef struct JSString JSString; -typedef struct JSString JSAtomStruct; - -typedef enum { - JS_GC_PHASE_NONE, - JS_GC_PHASE_DECREF, - JS_GC_PHASE_REMOVE_CYCLES, -} JSGCPhaseEnum; - -typedef enum OPCodeEnum OPCodeEnum; - -/* function pointers are used for numeric operations so that it is - possible to remove some numeric types */ -typedef struct { - JSValue (*to_string)(JSContext *ctx, JSValueConst val); - JSValue (*from_string)(JSContext *ctx, const char *buf, - int radix, int flags, slimb_t *pexponent); - int (*unary_arith)(JSContext *ctx, - JSValue *pres, OPCodeEnum op, JSValue op1); - int (*binary_arith)(JSContext *ctx, OPCodeEnum op, - JSValue *pres, JSValue op1, JSValue op2); - int (*compare)(JSContext *ctx, OPCodeEnum op, - JSValue op1, JSValue op2); - /* only for bigfloat: */ - JSValue (*mul_pow10_to_float64)(JSContext *ctx, const bf_t *a, - int64_t exponent); - int (*mul_pow10)(JSContext *ctx, JSValue *sp); -} JSNumericOperations; - -struct JSRuntime { - JSMallocFunctions mf; - JSMallocState malloc_state; - const char *rt_info; - - int atom_hash_size; /* power of two */ - int atom_count; - int atom_size; - int atom_count_resize; /* resize hash table at this count */ - uint32_t *atom_hash; - JSAtomStruct **atom_array; - int atom_free_index; /* 0 = none */ - - int class_count; /* size of class_array */ - JSClass *class_array; - - struct list_head context_list; /* list of JSContext.link */ - /* list of JSGCObjectHeader.link. List of allocated GC objects (used - by the garbage collector) */ - struct list_head gc_obj_list; - /* list of JSGCObjectHeader.link. Used during JS_FreeValueRT() */ - struct list_head gc_zero_ref_count_list; - struct list_head tmp_obj_list; /* used during GC */ - JSGCPhaseEnum gc_phase : 8; - size_t malloc_gc_threshold; -#ifdef DUMP_LEAKS - struct list_head string_list; /* list of JSString.link */ -#endif - /* stack limitation */ - uintptr_t stack_size; /* in bytes, 0 if no limit */ - uintptr_t stack_top; - uintptr_t stack_limit; /* lower stack limit */ - - JSValue current_exception; - /* true if inside an out of memory error, to avoid recursing */ - BOOL in_out_of_memory : 8; - - struct JSStackFrame *current_stack_frame; - - JSInterruptHandler *interrupt_handler; - void *interrupt_opaque; - - JSHostPromiseRejectionTracker *host_promise_rejection_tracker; - void *host_promise_rejection_tracker_opaque; - - struct list_head job_list; /* list of JSJobEntry.link */ - - JSModuleNormalizeFunc *module_normalize_func; - JSModuleLoaderFunc *module_loader_func; - void *module_loader_opaque; - /* timestamp for internal use in module evaluation */ - int64_t module_async_evaluation_next_timestamp; - - BOOL can_block : 8; /* TRUE if Atomics.wait can block */ - /* used to allocate, free and clone SharedArrayBuffers */ - JSSharedArrayBufferFunctions sab_funcs; - - /* Shape hash table */ - int shape_hash_bits; - int shape_hash_size; - int shape_hash_count; /* number of hashed shapes */ - JSShape **shape_hash; - bf_context_t bf_ctx; - JSNumericOperations bigint_ops; -#ifdef CONFIG_BIGNUM - JSNumericOperations bigfloat_ops; - JSNumericOperations bigdecimal_ops; - uint32_t operator_count; -#endif - void *user_opaque; -}; - -struct JSClass { - uint32_t class_id; /* 0 means free entry */ - JSAtom class_name; - JSClassFinalizer *finalizer; - JSClassGCMark *gc_mark; - JSClassCall *call; - /* pointers for exotic behavior, can be NULL if none are present */ - const JSClassExoticMethods *exotic; -}; - -#define JS_MODE_STRICT (1 << 0) -#define JS_MODE_STRIP (1 << 1) -#define JS_MODE_MATH (1 << 2) -#define JS_MODE_ASYNC (1 << 3) /* async function */ - -typedef struct JSStackFrame { - struct JSStackFrame *prev_frame; /* NULL if first stack frame */ - JSValue cur_func; /* current function, JS_UNDEFINED if the frame is detached */ - JSValue *arg_buf; /* arguments */ - JSValue *var_buf; /* variables */ - struct list_head var_ref_list; /* list of JSVarRef.var_ref_link */ - const uint8_t *cur_pc; /* only used in bytecode functions : PC of the - instruction after the call */ - int arg_count; - int js_mode; /* for C functions, only JS_MODE_MATH may be set */ - /* only used in generators. Current stack pointer value. NULL if - the function is running. */ - JSValue *cur_sp; -} JSStackFrame; - -typedef enum { - JS_GC_OBJ_TYPE_JS_OBJECT, - JS_GC_OBJ_TYPE_FUNCTION_BYTECODE, - JS_GC_OBJ_TYPE_SHAPE, - JS_GC_OBJ_TYPE_VAR_REF, - JS_GC_OBJ_TYPE_ASYNC_FUNCTION, - JS_GC_OBJ_TYPE_JS_CONTEXT, -} JSGCObjectTypeEnum; - -/* header for GC objects. GC objects are C data structures with a - reference count that can reference other GC objects. JS Objects are - a particular type of GC object. */ -struct JSGCObjectHeader { - int ref_count; /* must come first, 32-bit */ - JSGCObjectTypeEnum gc_obj_type : 4; - uint8_t mark : 4; /* used by the GC */ - uint8_t dummy1; /* not used by the GC */ - uint16_t dummy2; /* not used by the GC */ - struct list_head link; -}; - -typedef struct JSVarRef { - union { - JSGCObjectHeader header; /* must come first */ - struct { - int __gc_ref_count; /* corresponds to header.ref_count */ - uint8_t __gc_mark; /* corresponds to header.mark/gc_obj_type */ - uint8_t is_detached : 1; - uint8_t is_arg : 1; - uint16_t var_idx; /* index of the corresponding function variable on - the stack */ - }; - }; - JSValue *pvalue; /* pointer to the value, either on the stack or - to 'value' */ - union { - JSValue value; /* used when is_detached = TRUE */ - struct { - struct list_head var_ref_link; /* JSStackFrame.var_ref_list list */ - struct JSAsyncFunctionState *async_func; /* != NULL if async stack frame */ - }; /* used when is_detached = FALSE */ - }; -} JSVarRef; - -/* the same structure is used for big integers and big floats. Big - integers are never infinite or NaNs */ -typedef struct JSBigFloat { - JSRefCountHeader header; /* must come first, 32-bit */ - bf_t num; -} JSBigFloat; - -#ifdef CONFIG_BIGNUM -typedef struct JSFloatEnv { - limb_t prec; - bf_flags_t flags; - unsigned int status; -} JSFloatEnv; - -typedef struct JSBigDecimal { - JSRefCountHeader header; /* must come first, 32-bit */ - bfdec_t num; -} JSBigDecimal; -#endif - -typedef enum { - JS_AUTOINIT_ID_PROTOTYPE, - JS_AUTOINIT_ID_MODULE_NS, - JS_AUTOINIT_ID_PROP, -} JSAutoInitIDEnum; - -/* must be large enough to have a negligible runtime cost and small - enough to call the interrupt callback often. */ -#define JS_INTERRUPT_COUNTER_INIT 10000 - -struct JSContext { - JSGCObjectHeader header; /* must come first */ - JSRuntime *rt; - struct list_head link; - - uint16_t binary_object_count; - int binary_object_size; - - JSShape *array_shape; /* initial shape for Array objects */ - - JSValue *class_proto; - JSValue function_proto; - JSValue function_ctor; - JSValue array_ctor; - JSValue regexp_ctor; - JSValue promise_ctor; - JSValue native_error_proto[JS_NATIVE_ERROR_COUNT]; - JSValue iterator_proto; - JSValue async_iterator_proto; - JSValue array_proto_values; - JSValue throw_type_error; - JSValue eval_obj; - - JSValue global_obj; /* global object */ - JSValue global_var_obj; /* contains the global let/const definitions */ - - uint64_t random_state; - bf_context_t *bf_ctx; /* points to rt->bf_ctx, shared by all contexts */ -#ifdef CONFIG_BIGNUM - JSFloatEnv fp_env; /* global FP environment */ - BOOL bignum_ext : 8; /* enable math mode */ - BOOL allow_operator_overloading : 8; -#endif - /* when the counter reaches zero, JSRutime.interrupt_handler is called */ - int interrupt_counter; - - struct list_head loaded_modules; /* list of JSModuleDef.link */ - - /* if NULL, RegExp compilation is not supported */ - JSValue (*compile_regexp)(JSContext *ctx, JSValueConst pattern, - JSValueConst flags); - /* if NULL, eval is not supported */ - JSValue (*eval_internal)(JSContext *ctx, JSValueConst this_obj, - const char *input, size_t input_len, - const char *filename, int flags, int scope_idx); - void *user_opaque; -}; - -typedef union JSFloat64Union { - double d; - uint64_t u64; - uint32_t u32[2]; -} JSFloat64Union; - -enum { - JS_ATOM_TYPE_STRING = 1, - JS_ATOM_TYPE_GLOBAL_SYMBOL, - JS_ATOM_TYPE_SYMBOL, - JS_ATOM_TYPE_PRIVATE, -}; - -enum { - JS_ATOM_HASH_SYMBOL, - JS_ATOM_HASH_PRIVATE, -}; - -typedef enum { - JS_ATOM_KIND_STRING, - JS_ATOM_KIND_SYMBOL, - JS_ATOM_KIND_PRIVATE, -} JSAtomKindEnum; - -#define JS_ATOM_HASH_MASK ((1 << 30) - 1) - -struct JSString { - JSRefCountHeader header; /* must come first, 32-bit */ - uint32_t len : 31; - uint8_t is_wide_char : 1; /* 0 = 8 bits, 1 = 16 bits characters */ - /* for JS_ATOM_TYPE_SYMBOL: hash = 0, atom_type = 3, - for JS_ATOM_TYPE_PRIVATE: hash = 1, atom_type = 3 - XXX: could change encoding to have one more bit in hash */ - uint32_t hash : 30; - uint8_t atom_type : 2; /* != 0 if atom, JS_ATOM_TYPE_x */ - uint32_t hash_next; /* atom_index for JS_ATOM_TYPE_SYMBOL */ -#ifdef DUMP_LEAKS - struct list_head link; /* string list */ -#endif - union { - uint8_t str8[0]; /* 8 bit strings will get an extra null terminator */ - uint16_t str16[0]; - } u; -}; - -typedef struct JSClosureVar { - uint8_t is_local : 1; - uint8_t is_arg : 1; - uint8_t is_const : 1; - uint8_t is_lexical : 1; - uint8_t var_kind : 4; /* see JSVarKindEnum */ - /* 8 bits available */ - uint16_t var_idx; /* is_local = TRUE: index to a normal variable of the - parent function. otherwise: index to a closure - variable of the parent function */ - JSAtom var_name; -} JSClosureVar; - -#define ARG_SCOPE_INDEX 1 -#define ARG_SCOPE_END (-2) - -typedef struct JSVarScope { - int parent; /* index into fd->scopes of the enclosing scope */ - int first; /* index into fd->vars of the last variable in this scope */ -} JSVarScope; - -typedef enum { - /* XXX: add more variable kinds here instead of using bit fields */ - JS_VAR_NORMAL, - JS_VAR_FUNCTION_DECL, /* lexical var with function declaration */ - JS_VAR_NEW_FUNCTION_DECL, /* lexical var with async/generator - function declaration */ - JS_VAR_CATCH, - JS_VAR_FUNCTION_NAME, /* function expression name */ - JS_VAR_PRIVATE_FIELD, - JS_VAR_PRIVATE_METHOD, - JS_VAR_PRIVATE_GETTER, - JS_VAR_PRIVATE_SETTER, /* must come after JS_VAR_PRIVATE_GETTER */ - JS_VAR_PRIVATE_GETTER_SETTER, /* must come after JS_VAR_PRIVATE_SETTER */ -} JSVarKindEnum; - -/* XXX: could use a different structure in bytecode functions to save - memory */ -typedef struct JSVarDef { - JSAtom var_name; - /* index into fd->scopes of this variable lexical scope */ - int scope_level; - /* during compilation: - - if scope_level = 0: scope in which the variable is defined - - if scope_level != 0: index into fd->vars of the next - variable in the same or enclosing lexical scope - in a bytecode function: - index into fd->vars of the next - variable in the same or enclosing lexical scope - */ - int scope_next; - uint8_t is_const : 1; - uint8_t is_lexical : 1; - uint8_t is_captured : 1; - uint8_t is_static_private : 1; /* only used during private class field parsing */ - uint8_t var_kind : 4; /* see JSVarKindEnum */ - /* only used during compilation: function pool index for lexical - variables with var_kind = - JS_VAR_FUNCTION_DECL/JS_VAR_NEW_FUNCTION_DECL or scope level of - the definition of the 'var' variables (they have scope_level = - 0) */ - int func_pool_idx : 24; /* only used during compilation : index in - the constant pool for hoisted function - definition */ -} JSVarDef; - -/* for the encoding of the pc2line table */ -#define PC2LINE_BASE (-1) -#define PC2LINE_RANGE 5 -#define PC2LINE_OP_FIRST 1 -#define PC2LINE_DIFF_PC_MAX ((255 - PC2LINE_OP_FIRST) / PC2LINE_RANGE) - -typedef enum JSFunctionKindEnum { - JS_FUNC_NORMAL = 0, - JS_FUNC_GENERATOR = (1 << 0), - JS_FUNC_ASYNC = (1 << 1), - JS_FUNC_ASYNC_GENERATOR = (JS_FUNC_GENERATOR | JS_FUNC_ASYNC), -} JSFunctionKindEnum; - -typedef struct JSFunctionBytecode { - JSGCObjectHeader header; /* must come first */ - uint8_t js_mode; - uint8_t has_prototype : 1; /* true if a prototype field is necessary */ - uint8_t has_simple_parameter_list : 1; - uint8_t is_derived_class_constructor : 1; - /* true if home_object needs to be initialized */ - uint8_t need_home_object : 1; - uint8_t func_kind : 2; - uint8_t new_target_allowed : 1; - uint8_t super_call_allowed : 1; - uint8_t super_allowed : 1; - uint8_t arguments_allowed : 1; - uint8_t has_debug : 1; - uint8_t backtrace_barrier : 1; /* stop backtrace on this function */ - uint8_t read_only_bytecode : 1; - uint8_t is_direct_or_indirect_eval : 1; /* used by JS_GetScriptOrModuleName() */ - /* XXX: 4 bits available */ - uint8_t *byte_code_buf; /* (self pointer) */ - int byte_code_len; - JSAtom func_name; - JSVarDef *vardefs; /* arguments + local variables (arg_count + var_count) (self pointer) */ - JSClosureVar *closure_var; /* list of variables in the closure (self pointer) */ - uint16_t arg_count; - uint16_t var_count; - uint16_t defined_arg_count; /* for length function property */ - uint16_t stack_size; /* maximum stack size */ - JSContext *realm; /* function realm */ - JSValue *cpool; /* constant pool (self pointer) */ - int cpool_count; - int closure_var_count; - struct { - /* debug info, move to separate structure to save memory? */ - JSAtom filename; - int line_num; - int source_len; - int pc2line_len; - uint8_t *pc2line_buf; - char *source; - } debug; -} JSFunctionBytecode; - -typedef struct JSBoundFunction { - JSValue func_obj; - JSValue this_val; - int argc; - JSValue argv[0]; -} JSBoundFunction; - -typedef enum JSIteratorKindEnum { - JS_ITERATOR_KIND_KEY, - JS_ITERATOR_KIND_VALUE, - JS_ITERATOR_KIND_KEY_AND_VALUE, -} JSIteratorKindEnum; - -typedef struct JSForInIterator { - JSValue obj; - uint32_t idx; - uint32_t atom_count; - uint8_t in_prototype_chain; - uint8_t is_array; - JSPropertyEnum *tab_atom; /* is_array = FALSE */ -} JSForInIterator; - -typedef struct JSRegExp { - JSString *pattern; - JSString *bytecode; /* also contains the flags */ -} JSRegExp; - -typedef struct JSProxyData { - JSValue target; - JSValue handler; - uint8_t is_func; - uint8_t is_revoked; -} JSProxyData; - -typedef struct JSArrayBuffer { - int byte_length; /* 0 if detached */ - uint8_t detached; - uint8_t shared; /* if shared, the array buffer cannot be detached */ - uint8_t *data; /* NULL if detached */ - struct list_head array_list; - void *opaque; - JSFreeArrayBufferDataFunc *free_func; -} JSArrayBuffer; - -typedef struct JSTypedArray { - struct list_head link; /* link to arraybuffer */ - JSObject *obj; /* back pointer to the TypedArray/DataView object */ - JSObject *buffer; /* based array buffer */ - uint32_t offset; /* offset in the array buffer */ - uint32_t length; /* length in the array buffer */ -} JSTypedArray; - -typedef struct JSAsyncFunctionState { - JSGCObjectHeader header; - JSValue this_val; /* 'this' argument */ - int argc; /* number of function arguments */ - BOOL throw_flag; /* used to throw an exception in JS_CallInternal() */ - BOOL is_completed; /* TRUE if the function has returned. The stack - frame is no longer valid */ - JSValue resolving_funcs[2]; /* only used in JS async functions */ - JSStackFrame frame; -} JSAsyncFunctionState; - -typedef enum { - /* binary operators */ - JS_OVOP_ADD, - JS_OVOP_SUB, - JS_OVOP_MUL, - JS_OVOP_DIV, - JS_OVOP_MOD, - JS_OVOP_POW, - JS_OVOP_OR, - JS_OVOP_AND, - JS_OVOP_XOR, - JS_OVOP_SHL, - JS_OVOP_SAR, - JS_OVOP_SHR, - JS_OVOP_EQ, - JS_OVOP_LESS, - - JS_OVOP_BINARY_COUNT, - /* unary operators */ - JS_OVOP_POS = JS_OVOP_BINARY_COUNT, - JS_OVOP_NEG, - JS_OVOP_INC, - JS_OVOP_DEC, - JS_OVOP_NOT, - - JS_OVOP_COUNT, -} JSOverloadableOperatorEnum; - -typedef struct { - uint32_t operator_index; - JSObject *ops[JS_OVOP_BINARY_COUNT]; /* self operators */ -} JSBinaryOperatorDefEntry; - -typedef struct { - int count; - JSBinaryOperatorDefEntry *tab; -} JSBinaryOperatorDef; - -typedef struct { - uint32_t operator_counter; - BOOL is_primitive; /* OperatorSet for a primitive type */ - /* NULL if no operator is defined */ - JSObject *self_ops[JS_OVOP_COUNT]; /* self operators */ - JSBinaryOperatorDef left; - JSBinaryOperatorDef right; -} JSOperatorSetData; - -typedef struct JSReqModuleEntry { - JSAtom module_name; - JSModuleDef *module; /* used using resolution */ -} JSReqModuleEntry; - -typedef enum JSExportTypeEnum { - JS_EXPORT_TYPE_LOCAL, - JS_EXPORT_TYPE_INDIRECT, -} JSExportTypeEnum; - -typedef struct JSExportEntry { - union { - struct { - int var_idx; /* closure variable index */ - JSVarRef *var_ref; /* if != NULL, reference to the variable */ - } local; /* for local export */ - int req_module_idx; /* module for indirect export */ - } u; - JSExportTypeEnum export_type; - JSAtom local_name; /* '*' if export ns from. not used for local - export after compilation */ - JSAtom export_name; /* exported variable name */ -} JSExportEntry; - -typedef struct JSStarExportEntry { - int req_module_idx; /* in req_module_entries */ -} JSStarExportEntry; - -typedef struct JSImportEntry { - int var_idx; /* closure variable index */ - JSAtom import_name; - int req_module_idx; /* in req_module_entries */ -} JSImportEntry; - -typedef enum { - JS_MODULE_STATUS_UNLINKED, - JS_MODULE_STATUS_LINKING, - JS_MODULE_STATUS_LINKED, - JS_MODULE_STATUS_EVALUATING, - JS_MODULE_STATUS_EVALUATING_ASYNC, - JS_MODULE_STATUS_EVALUATED, -} JSModuleStatus; - -struct JSModuleDef { - JSRefCountHeader header; /* must come first, 32-bit */ - JSAtom module_name; - struct list_head link; - - JSReqModuleEntry *req_module_entries; - int req_module_entries_count; - int req_module_entries_size; - - JSExportEntry *export_entries; - int export_entries_count; - int export_entries_size; - - JSStarExportEntry *star_export_entries; - int star_export_entries_count; - int star_export_entries_size; - - JSImportEntry *import_entries; - int import_entries_count; - int import_entries_size; - - JSValue module_ns; - JSValue func_obj; /* only used for JS modules */ - JSModuleInitFunc *init_func; /* only used for C modules */ - BOOL has_tla : 8; /* true if func_obj contains await */ - BOOL resolved : 8; - BOOL func_created : 8; - JSModuleStatus status : 8; - /* temp use during js_module_link() & js_module_evaluate() */ - int dfs_index, dfs_ancestor_index; - JSModuleDef *stack_prev; - /* temp use during js_module_evaluate() */ - JSModuleDef **async_parent_modules; - int async_parent_modules_count; - int async_parent_modules_size; - int pending_async_dependencies; - BOOL async_evaluation; - int64_t async_evaluation_timestamp; - JSModuleDef *cycle_root; - JSValue promise; /* corresponds to spec field: capability */ - JSValue resolving_funcs[2]; /* corresponds to spec field: capability */ - - /* true if evaluation yielded an exception. It is saved in - eval_exception */ - BOOL eval_has_exception : 8; - JSValue eval_exception; - JSValue meta_obj; /* for import.meta */ -}; - -typedef struct JSJobEntry { - struct list_head link; - JSContext *ctx; - JSJobFunc *job_func; - int argc; - JSValue argv[0]; -} JSJobEntry; - -typedef struct JSProperty { - union { - JSValue value; /* JS_PROP_NORMAL */ - struct { /* JS_PROP_GETSET */ - JSObject *getter; /* NULL if undefined */ - JSObject *setter; /* NULL if undefined */ - } getset; - JSVarRef *var_ref; /* JS_PROP_VARREF */ - struct { /* JS_PROP_AUTOINIT */ - /* in order to use only 2 pointers, we compress the realm - and the init function pointer */ - uintptr_t realm_and_id; /* realm and init_id (JS_AUTOINIT_ID_x) - in the 2 low bits */ - void *opaque; - } init; - } u; -} JSProperty; - -#define JS_PROP_INITIAL_SIZE 2 -#define JS_PROP_INITIAL_HASH_SIZE 4 /* must be a power of two */ -#define JS_ARRAY_INITIAL_SIZE 2 - -typedef struct JSShapeProperty { - uint32_t hash_next : 26; /* 0 if last in list */ - uint32_t flags : 6; /* JS_PROP_XXX */ - JSAtom atom; /* JS_ATOM_NULL = free property entry */ -} JSShapeProperty; - -struct JSShape { - /* hash table of size hash_mask + 1 before the start of the - structure (see prop_hash_end()). */ - JSGCObjectHeader header; - /* true if the shape is inserted in the shape hash table. If not, - JSShape.hash is not valid */ - uint8_t is_hashed; - /* If true, the shape may have small array index properties 'n' with 0 - <= n <= 2^31-1. If false, the shape is guaranteed not to have - small array index properties */ - uint8_t has_small_array_index; - uint32_t hash; /* current hash value */ - uint32_t prop_hash_mask; - int prop_size; /* allocated properties */ - int prop_count; /* include deleted properties */ - int deleted_prop_count; - JSShape *shape_hash_next; /* in JSRuntime.shape_hash[h] list */ - JSObject *proto; - JSShapeProperty prop[0]; /* prop_size elements */ -}; - -struct JSObject { - union { - JSGCObjectHeader header; - struct { - int __gc_ref_count; /* corresponds to header.ref_count */ - uint8_t __gc_mark; /* corresponds to header.mark/gc_obj_type */ - - uint8_t extensible : 1; - uint8_t free_mark : 1; /* only used when freeing objects with cycles */ - uint8_t is_exotic : 1; /* TRUE if object has exotic property handlers */ - uint8_t fast_array : 1; /* TRUE if u.array is used for get/put (for JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS and typed arrays) */ - uint8_t is_constructor : 1; /* TRUE if object is a constructor function */ - uint8_t is_uncatchable_error : 1; /* if TRUE, error is not catchable */ - uint8_t tmp_mark : 1; /* used in JS_WriteObjectRec() */ - uint8_t is_HTMLDDA : 1; /* specific annex B IsHtmlDDA behavior */ - uint16_t class_id; /* see JS_CLASS_x */ - }; - }; - /* byte offsets: 16/24 */ - JSShape *shape; /* prototype and property names + flag */ - JSProperty *prop; /* array of properties */ - /* byte offsets: 24/40 */ - struct JSMapRecord *first_weak_ref; /* XXX: use a bit and an external hash table? */ - /* byte offsets: 28/48 */ - union { - void *opaque; - struct JSBoundFunction *bound_function; /* JS_CLASS_BOUND_FUNCTION */ - struct JSCFunctionDataRecord *c_function_data_record; /* JS_CLASS_C_FUNCTION_DATA */ - struct JSForInIterator *for_in_iterator; /* JS_CLASS_FOR_IN_ITERATOR */ - struct JSArrayBuffer *array_buffer; /* JS_CLASS_ARRAY_BUFFER, JS_CLASS_SHARED_ARRAY_BUFFER */ - struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_DATAVIEW */ -#ifdef CONFIG_BIGNUM - struct JSFloatEnv *float_env; /* JS_CLASS_FLOAT_ENV */ - struct JSOperatorSetData *operator_set; /* JS_CLASS_OPERATOR_SET */ -#endif - struct JSMapState *map_state; /* JS_CLASS_MAP..JS_CLASS_WEAKSET */ - struct JSMapIteratorData *map_iterator_data; /* JS_CLASS_MAP_ITERATOR, JS_CLASS_SET_ITERATOR */ - struct JSArrayIteratorData *array_iterator_data; /* JS_CLASS_ARRAY_ITERATOR, JS_CLASS_STRING_ITERATOR */ - struct JSRegExpStringIteratorData *regexp_string_iterator_data; /* JS_CLASS_REGEXP_STRING_ITERATOR */ - struct JSGeneratorData *generator_data; /* JS_CLASS_GENERATOR */ - struct JSProxyData *proxy_data; /* JS_CLASS_PROXY */ - struct JSPromiseData *promise_data; /* JS_CLASS_PROMISE */ - struct JSPromiseFunctionData *promise_function_data; /* JS_CLASS_PROMISE_RESOLVE_FUNCTION, JS_CLASS_PROMISE_REJECT_FUNCTION */ - struct JSAsyncFunctionState *async_function_data; /* JS_CLASS_ASYNC_FUNCTION_RESOLVE, JS_CLASS_ASYNC_FUNCTION_REJECT */ - struct JSAsyncFromSyncIteratorData *async_from_sync_iterator_data; /* JS_CLASS_ASYNC_FROM_SYNC_ITERATOR */ - struct JSAsyncGeneratorData *async_generator_data; /* JS_CLASS_ASYNC_GENERATOR */ - struct { /* JS_CLASS_BYTECODE_FUNCTION: 12/24 bytes */ - /* also used by JS_CLASS_GENERATOR_FUNCTION, JS_CLASS_ASYNC_FUNCTION and JS_CLASS_ASYNC_GENERATOR_FUNCTION */ - struct JSFunctionBytecode *function_bytecode; - JSVarRef **var_refs; - JSObject *home_object; /* for 'super' access */ - } func; - struct { /* JS_CLASS_C_FUNCTION: 12/20 bytes */ - JSContext *realm; - JSCFunctionType c_function; - uint8_t length; - uint8_t cproto; - int16_t magic; - } cfunc; - /* array part for fast arrays and typed arrays */ - struct { /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS, JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */ - union { - uint32_t size; /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */ - struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */ - } u1; - union { - JSValue *values; /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */ - void *ptr; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */ - int8_t *int8_ptr; /* JS_CLASS_INT8_ARRAY */ - uint8_t *uint8_ptr; /* JS_CLASS_UINT8_ARRAY, JS_CLASS_UINT8C_ARRAY */ - int16_t *int16_ptr; /* JS_CLASS_INT16_ARRAY */ - uint16_t *uint16_ptr; /* JS_CLASS_UINT16_ARRAY */ - int32_t *int32_ptr; /* JS_CLASS_INT32_ARRAY */ - uint32_t *uint32_ptr; /* JS_CLASS_UINT32_ARRAY */ - int64_t *int64_ptr; /* JS_CLASS_INT64_ARRAY */ - uint64_t *uint64_ptr; /* JS_CLASS_UINT64_ARRAY */ - float *float_ptr; /* JS_CLASS_FLOAT32_ARRAY */ - double *double_ptr; /* JS_CLASS_FLOAT64_ARRAY */ - } u; - uint32_t count; /* <= 2^31-1. 0 for a detached typed array */ - } array; /* 12/20 bytes */ - JSRegExp regexp; /* JS_CLASS_REGEXP: 8/16 bytes */ - JSValue object_data; /* for JS_SetObjectData(): 8/16/16 bytes */ - } u; - /* byte sizes: 40/48/72 */ -}; -enum { - __JS_ATOM_NULL = JS_ATOM_NULL, -#define DEF(name, str) JS_ATOM_ ## name, -#include "quickjs-atom.h" -#undef DEF - JS_ATOM_END, -}; -#define JS_ATOM_LAST_KEYWORD JS_ATOM_super -#define JS_ATOM_LAST_STRICT_KEYWORD JS_ATOM_yield - -static const char js_atom_init[] = -#define DEF(name, str) str "\0" -#include "quickjs-atom.h" -#undef DEF -; - -typedef enum OPCodeFormat { -#define FMT(f) OP_FMT_ ## f, -#define DEF(id, size, n_pop, n_push, f) -#include "quickjs-opcode.h" -#undef DEF -#undef FMT -} OPCodeFormat; - -enum OPCodeEnum { -#define FMT(f) -#define DEF(id, size, n_pop, n_push, f) OP_ ## id, -#define def(id, size, n_pop, n_push, f) -#include "quickjs-opcode.h" -#undef def -#undef DEF -#undef FMT - OP_COUNT, /* excluding temporary opcodes */ - /* temporary opcodes : overlap with the short opcodes */ - OP_TEMP_START = OP_nop + 1, - OP___dummy = OP_TEMP_START - 1, -#define FMT(f) -#define DEF(id, size, n_pop, n_push, f) -#define def(id, size, n_pop, n_push, f) OP_ ## id, -#include "quickjs-opcode.h" -#undef def -#undef DEF -#undef FMT - OP_TEMP_END, -}; - -static int JS_InitAtoms(JSRuntime *rt); -static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len, - int atom_type); -static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p); -static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b); -static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, int flags); -static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, int flags); -static JSValue JS_CallInternal(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, JSValueConst new_target, - int argc, JSValue *argv, int flags); -static JSValue JS_CallConstructorInternal(JSContext *ctx, - JSValueConst func_obj, - JSValueConst new_target, - int argc, JSValue *argv, int flags); -static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj, - int argc, JSValueConst *argv); -static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom, - int argc, JSValueConst *argv); -static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen, - JSValue val, BOOL is_array_ctor); -static JSValue JS_EvalObject(JSContext *ctx, JSValueConst this_obj, - JSValueConst val, int flags, int scope_idx); -JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...); -static __maybe_unused void JS_DumpAtoms(JSRuntime *rt); -static __maybe_unused void JS_DumpString(JSRuntime *rt, - const JSString *p); -static __maybe_unused void JS_DumpObjectHeader(JSRuntime *rt); -static __maybe_unused void JS_DumpObject(JSRuntime *rt, JSObject *p); -static __maybe_unused void JS_DumpGCObject(JSRuntime *rt, JSGCObjectHeader *p); -static __maybe_unused void JS_DumpValueShort(JSRuntime *rt, - JSValueConst val); -static __maybe_unused void JS_DumpValue(JSContext *ctx, JSValueConst val); -static __maybe_unused void JS_PrintValue(JSContext *ctx, - const char *str, - JSValueConst val); -static __maybe_unused void JS_DumpShapes(JSRuntime *rt); -static JSValue js_function_apply(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic); -static void js_array_finalizer(JSRuntime *rt, JSValue val); -static void js_array_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_object_data_finalizer(JSRuntime *rt, JSValue val); -static void js_object_data_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_c_function_finalizer(JSRuntime *rt, JSValue val); -static void js_c_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val); -static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_bound_function_finalizer(JSRuntime *rt, JSValue val); -static void js_bound_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val); -static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_regexp_finalizer(JSRuntime *rt, JSValue val); -static void js_array_buffer_finalizer(JSRuntime *rt, JSValue val); -static void js_typed_array_finalizer(JSRuntime *rt, JSValue val); -static void js_typed_array_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_proxy_finalizer(JSRuntime *rt, JSValue val); -static void js_proxy_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_map_finalizer(JSRuntime *rt, JSValue val); -static void js_map_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_map_iterator_finalizer(JSRuntime *rt, JSValue val); -static void js_map_iterator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_array_iterator_finalizer(JSRuntime *rt, JSValue val); -static void js_array_iterator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_regexp_string_iterator_finalizer(JSRuntime *rt, JSValue val); -static void js_regexp_string_iterator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_generator_finalizer(JSRuntime *rt, JSValue obj); -static void js_generator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_promise_finalizer(JSRuntime *rt, JSValue val); -static void js_promise_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static void js_promise_resolve_function_finalizer(JSRuntime *rt, JSValue val); -static void js_promise_resolve_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -#ifdef CONFIG_BIGNUM -static void js_operator_set_finalizer(JSRuntime *rt, JSValue val); -static void js_operator_set_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -#endif -static JSValue JS_ToStringFree(JSContext *ctx, JSValue val); -static int JS_ToBoolFree(JSContext *ctx, JSValue val); -static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val); -static int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val); -static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val); -static JSValue js_compile_regexp(JSContext *ctx, JSValueConst pattern, - JSValueConst flags); -static JSValue js_regexp_constructor_internal(JSContext *ctx, JSValueConst ctor, - JSValue pattern, JSValue bc); -static void gc_decref(JSRuntime *rt); -static int JS_NewClass1(JSRuntime *rt, JSClassID class_id, - const JSClassDef *class_def, JSAtom name); - -typedef enum JSStrictEqModeEnum { - JS_EQ_STRICT, - JS_EQ_SAME_VALUE, - JS_EQ_SAME_VALUE_ZERO, -} JSStrictEqModeEnum; - -static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2, - JSStrictEqModeEnum eq_mode); -static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2); -static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2); -static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2); -static JSValue JS_ToObject(JSContext *ctx, JSValueConst val); -static JSValue JS_ToObjectFree(JSContext *ctx, JSValue val); -static JSProperty *add_property(JSContext *ctx, - JSObject *p, JSAtom prop, int prop_flags); -static JSValue JS_NewBigInt(JSContext *ctx); -static inline bf_t *JS_GetBigInt(JSValueConst val) -{ - JSBigFloat *p = JS_VALUE_GET_PTR(val); - return &p->num; -} -static JSValue JS_CompactBigInt1(JSContext *ctx, JSValue val, - BOOL convert_to_safe_integer); -static JSValue JS_CompactBigInt(JSContext *ctx, JSValue val); -static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val); -static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val); -static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf); -#ifdef CONFIG_BIGNUM -static void js_float_env_finalizer(JSRuntime *rt, JSValue val); -static JSValue JS_NewBigFloat(JSContext *ctx); -static inline bf_t *JS_GetBigFloat(JSValueConst val) -{ - JSBigFloat *p = JS_VALUE_GET_PTR(val); - return &p->num; -} -static JSValue JS_NewBigDecimal(JSContext *ctx); -static inline bfdec_t *JS_GetBigDecimal(JSValueConst val) -{ - JSBigDecimal *p = JS_VALUE_GET_PTR(val); - return &p->num; -} -static bf_t *JS_ToBigFloat(JSContext *ctx, bf_t *buf, JSValueConst val); -static JSValue JS_ToBigDecimalFree(JSContext *ctx, JSValue val, - BOOL allow_null_or_undefined); -static bfdec_t *JS_ToBigDecimal(JSContext *ctx, JSValueConst val); -#endif -JSValue JS_ThrowOutOfMemory(JSContext *ctx); -static JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx); -static JSValue js_proxy_getPrototypeOf(JSContext *ctx, JSValueConst obj); -static int js_proxy_setPrototypeOf(JSContext *ctx, JSValueConst obj, - JSValueConst proto_val, BOOL throw_flag); -static int js_proxy_isExtensible(JSContext *ctx, JSValueConst obj); -static int js_proxy_preventExtensions(JSContext *ctx, JSValueConst obj); -static int js_proxy_isArray(JSContext *ctx, JSValueConst obj); -static int JS_CreateProperty(JSContext *ctx, JSObject *p, - JSAtom prop, JSValueConst val, - JSValueConst getter, JSValueConst setter, - int flags); -static int js_string_memcmp(const JSString *p1, const JSString *p2, int len); -static void reset_weak_ref(JSRuntime *rt, JSObject *p); -static JSValue js_array_buffer_constructor3(JSContext *ctx, - JSValueConst new_target, - uint64_t len, JSClassID class_id, - uint8_t *buf, - JSFreeArrayBufferDataFunc *free_func, - void *opaque, BOOL alloc_flag); -static JSArrayBuffer *js_get_array_buffer(JSContext *ctx, JSValueConst obj); -static JSValue js_typed_array_constructor(JSContext *ctx, - JSValueConst this_val, - int argc, JSValueConst *argv, - int classid); -static JSValue js_typed_array_constructor_ta(JSContext *ctx, - JSValueConst new_target, - JSValueConst src_obj, - int classid); -static BOOL typed_array_is_detached(JSContext *ctx, JSObject *p); -static uint32_t typed_array_get_length(JSContext *ctx, JSObject *p); -static JSValue JS_ThrowTypeErrorDetachedArrayBuffer(JSContext *ctx); -static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf, int var_idx, - BOOL is_arg); -static void __async_func_free(JSRuntime *rt, JSAsyncFunctionState *s); -static void async_func_free(JSRuntime *rt, JSAsyncFunctionState *s); -static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, - int flags); -static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val); -static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static JSValue JS_EvalInternal(JSContext *ctx, JSValueConst this_obj, - const char *input, size_t input_len, - const char *filename, int flags, int scope_idx); -static void js_free_module_def(JSContext *ctx, JSModuleDef *m); -static void js_mark_module_def(JSRuntime *rt, JSModuleDef *m, - JS_MarkFunc *mark_func); -static JSValue js_import_meta(JSContext *ctx); -static JSValue js_dynamic_import(JSContext *ctx, JSValueConst specifier); -static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref); -static JSValue js_new_promise_capability(JSContext *ctx, - JSValue *resolving_funcs, - JSValueConst ctor); -static __exception int perform_promise_then(JSContext *ctx, - JSValueConst promise, - JSValueConst *resolve_reject, - JSValueConst *cap_resolving_funcs); -static JSValue js_promise_resolve(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic); -static JSValue js_promise_then(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv); -static int js_string_compare(JSContext *ctx, - const JSString *p1, const JSString *p2); -static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val); -static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj, - JSValue prop, JSValue val, int flags); -static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val); -static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val); -static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val); -static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc, - JSObject *p, JSAtom prop); -static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc); -static void JS_AddIntrinsicBasicObjects(JSContext *ctx); -static void js_free_shape(JSRuntime *rt, JSShape *sh); -static void js_free_shape_null(JSRuntime *rt, JSShape *sh); -static int js_shape_prepare_update(JSContext *ctx, JSObject *p, - JSShapeProperty **pprs); -static int init_shape_hash(JSRuntime *rt); -static __exception int js_get_length32(JSContext *ctx, uint32_t *pres, - JSValueConst obj); -static __exception int js_get_length64(JSContext *ctx, int64_t *pres, - JSValueConst obj); -static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len); -static JSValue *build_arg_list(JSContext *ctx, uint32_t *plen, - JSValueConst array_arg); -static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj, - JSValue **arrpp, uint32_t *countp); -static JSValue JS_CreateAsyncFromSyncIterator(JSContext *ctx, - JSValueConst sync_iter); -static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val); -static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func); -static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_val, - int argc, JSValueConst *argv, int flags); -static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val); -static void add_gc_object(JSRuntime *rt, JSGCObjectHeader *h, - JSGCObjectTypeEnum type); -static void remove_gc_object(JSGCObjectHeader *h); -static JSValue js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque); -static JSValue js_module_ns_autoinit(JSContext *ctx, JSObject *p, JSAtom atom, - void *opaque); -static JSValue JS_InstantiateFunctionListItem2(JSContext *ctx, JSObject *p, - JSAtom atom, void *opaque); -void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag); -static JSValue js_object_groupBy(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int is_map); - -static const JSClassExoticMethods js_arguments_exotic_methods; -static const JSClassExoticMethods js_string_exotic_methods; -static const JSClassExoticMethods js_proxy_exotic_methods; -static const JSClassExoticMethods js_module_ns_exotic_methods; -static JSClassID js_class_id_alloc = JS_CLASS_INIT_COUNT; - -static void js_trigger_gc(JSRuntime *rt, size_t size) -{ - BOOL force_gc; -#ifdef FORCE_GC_AT_MALLOC - force_gc = TRUE; -#else - force_gc = ((rt->malloc_state.malloc_size + size) > - rt->malloc_gc_threshold); -#endif - if (force_gc) { -#ifdef DUMP_GC - printf("GC: size=%" PRIu64 "\n", - (uint64_t)rt->malloc_state.malloc_size); -#endif - JS_RunGC(rt); - rt->malloc_gc_threshold = rt->malloc_state.malloc_size + - (rt->malloc_state.malloc_size >> 1); - } -} - -static size_t js_malloc_usable_size_unknown(const void *ptr) -{ - return 0; -} - -void *js_malloc_rt(JSRuntime *rt, size_t size) -{ - return rt->mf.js_malloc(&rt->malloc_state, size); -} - -void js_free_rt(JSRuntime *rt, void *ptr) -{ - rt->mf.js_free(&rt->malloc_state, ptr); -} - -void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size) -{ - return rt->mf.js_realloc(&rt->malloc_state, ptr, size); -} - -size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr) -{ - return rt->mf.js_malloc_usable_size(ptr); -} - -void *js_mallocz_rt(JSRuntime *rt, size_t size) -{ - void *ptr; - ptr = js_malloc_rt(rt, size); - if (!ptr) - return NULL; - return memset(ptr, 0, size); -} - -/* called by libbf */ -static void *js_bf_realloc(void *opaque, void *ptr, size_t size) -{ - JSRuntime *rt = opaque; - return js_realloc_rt(rt, ptr, size); -} - -/* Throw out of memory in case of error */ -void *js_malloc(JSContext *ctx, size_t size) -{ - void *ptr; - ptr = js_malloc_rt(ctx->rt, size); - if (unlikely(!ptr)) { - JS_ThrowOutOfMemory(ctx); - return NULL; - } - return ptr; -} - -/* Throw out of memory in case of error */ -void *js_mallocz(JSContext *ctx, size_t size) -{ - void *ptr; - ptr = js_mallocz_rt(ctx->rt, size); - if (unlikely(!ptr)) { - JS_ThrowOutOfMemory(ctx); - return NULL; - } - return ptr; -} - -void js_free(JSContext *ctx, void *ptr) -{ - js_free_rt(ctx->rt, ptr); -} - -/* Throw out of memory in case of error */ -void *js_realloc(JSContext *ctx, void *ptr, size_t size) -{ - void *ret; - ret = js_realloc_rt(ctx->rt, ptr, size); - if (unlikely(!ret && size != 0)) { - JS_ThrowOutOfMemory(ctx); - return NULL; - } - return ret; -} - -/* store extra allocated size in *pslack if successful */ -void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack) -{ - void *ret; - ret = js_realloc_rt(ctx->rt, ptr, size); - if (unlikely(!ret && size != 0)) { - JS_ThrowOutOfMemory(ctx); - return NULL; - } - if (pslack) { - size_t new_size = js_malloc_usable_size_rt(ctx->rt, ret); - *pslack = (new_size > size) ? new_size - size : 0; - } - return ret; -} - -size_t js_malloc_usable_size(JSContext *ctx, const void *ptr) -{ - return js_malloc_usable_size_rt(ctx->rt, ptr); -} - -/* Throw out of memory exception in case of error */ -char *js_strndup(JSContext *ctx, const char *s, size_t n) -{ - char *ptr; - ptr = js_malloc(ctx, n + 1); - if (ptr) { - memcpy(ptr, s, n); - ptr[n] = '\0'; - } - return ptr; -} - -char *js_strdup(JSContext *ctx, const char *str) -{ - return js_strndup(ctx, str, strlen(str)); -} - -static no_inline int js_realloc_array(JSContext *ctx, void **parray, - int elem_size, int *psize, int req_size) -{ - int new_size; - size_t slack; - void *new_array; - /* XXX: potential arithmetic overflow */ - new_size = max_int(req_size, *psize * 3 / 2); - new_array = js_realloc2(ctx, *parray, new_size * elem_size, &slack); - if (!new_array) - return -1; - new_size += slack / elem_size; - *psize = new_size; - *parray = new_array; - return 0; -} - -/* resize the array and update its size if req_size > *psize */ -static inline int js_resize_array(JSContext *ctx, void **parray, int elem_size, - int *psize, int req_size) -{ - if (unlikely(req_size > *psize)) - return js_realloc_array(ctx, parray, elem_size, psize, req_size); - else - return 0; -} - -static inline void js_dbuf_init(JSContext *ctx, DynBuf *s) -{ - dbuf_init2(s, ctx->rt, (DynBufReallocFunc *)js_realloc_rt); -} - -static inline int is_digit(int c) { - return c >= '0' && c <= '9'; -} - -typedef struct JSClassShortDef { - JSAtom class_name; - JSClassFinalizer *finalizer; - JSClassGCMark *gc_mark; -} JSClassShortDef; - -static JSClassShortDef const js_std_class_def[] = { - { JS_ATOM_Object, NULL, NULL }, /* JS_CLASS_OBJECT */ - { JS_ATOM_Array, js_array_finalizer, js_array_mark }, /* JS_CLASS_ARRAY */ - { JS_ATOM_Error, NULL, NULL }, /* JS_CLASS_ERROR */ - { JS_ATOM_Number, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_NUMBER */ - { JS_ATOM_String, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_STRING */ - { JS_ATOM_Boolean, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BOOLEAN */ - { JS_ATOM_Symbol, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_SYMBOL */ - { JS_ATOM_Arguments, js_array_finalizer, js_array_mark }, /* JS_CLASS_ARGUMENTS */ - { JS_ATOM_Arguments, NULL, NULL }, /* JS_CLASS_MAPPED_ARGUMENTS */ - { JS_ATOM_Date, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_DATE */ - { JS_ATOM_Object, NULL, NULL }, /* JS_CLASS_MODULE_NS */ - { JS_ATOM_Function, js_c_function_finalizer, js_c_function_mark }, /* JS_CLASS_C_FUNCTION */ - { JS_ATOM_Function, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_BYTECODE_FUNCTION */ - { JS_ATOM_Function, js_bound_function_finalizer, js_bound_function_mark }, /* JS_CLASS_BOUND_FUNCTION */ - { JS_ATOM_Function, js_c_function_data_finalizer, js_c_function_data_mark }, /* JS_CLASS_C_FUNCTION_DATA */ - { JS_ATOM_GeneratorFunction, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_GENERATOR_FUNCTION */ - { JS_ATOM_ForInIterator, js_for_in_iterator_finalizer, js_for_in_iterator_mark }, /* JS_CLASS_FOR_IN_ITERATOR */ - { JS_ATOM_RegExp, js_regexp_finalizer, NULL }, /* JS_CLASS_REGEXP */ - { JS_ATOM_ArrayBuffer, js_array_buffer_finalizer, NULL }, /* JS_CLASS_ARRAY_BUFFER */ - { JS_ATOM_SharedArrayBuffer, js_array_buffer_finalizer, NULL }, /* JS_CLASS_SHARED_ARRAY_BUFFER */ - { JS_ATOM_Uint8ClampedArray, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8C_ARRAY */ - { JS_ATOM_Int8Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT8_ARRAY */ - { JS_ATOM_Uint8Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8_ARRAY */ - { JS_ATOM_Int16Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT16_ARRAY */ - { JS_ATOM_Uint16Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT16_ARRAY */ - { JS_ATOM_Int32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT32_ARRAY */ - { JS_ATOM_Uint32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT32_ARRAY */ - { JS_ATOM_BigInt64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_BIG_INT64_ARRAY */ - { JS_ATOM_BigUint64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_BIG_UINT64_ARRAY */ - { JS_ATOM_Float32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_FLOAT32_ARRAY */ - { JS_ATOM_Float64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_FLOAT64_ARRAY */ - { JS_ATOM_DataView, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_DATAVIEW */ - { JS_ATOM_BigInt, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_INT */ -#ifdef CONFIG_BIGNUM - { JS_ATOM_BigFloat, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_FLOAT */ - { JS_ATOM_BigFloatEnv, js_float_env_finalizer, NULL }, /* JS_CLASS_FLOAT_ENV */ - { JS_ATOM_BigDecimal, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_DECIMAL */ - { JS_ATOM_OperatorSet, js_operator_set_finalizer, js_operator_set_mark }, /* JS_CLASS_OPERATOR_SET */ -#endif - { JS_ATOM_Map, js_map_finalizer, js_map_mark }, /* JS_CLASS_MAP */ - { JS_ATOM_Set, js_map_finalizer, js_map_mark }, /* JS_CLASS_SET */ - { JS_ATOM_WeakMap, js_map_finalizer, js_map_mark }, /* JS_CLASS_WEAKMAP */ - { JS_ATOM_WeakSet, js_map_finalizer, js_map_mark }, /* JS_CLASS_WEAKSET */ - { JS_ATOM_Map_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_MAP_ITERATOR */ - { JS_ATOM_Set_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_SET_ITERATOR */ - { JS_ATOM_Array_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_ARRAY_ITERATOR */ - { JS_ATOM_String_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_STRING_ITERATOR */ - { JS_ATOM_RegExp_String_Iterator, js_regexp_string_iterator_finalizer, js_regexp_string_iterator_mark }, /* JS_CLASS_REGEXP_STRING_ITERATOR */ - { JS_ATOM_Generator, js_generator_finalizer, js_generator_mark }, /* JS_CLASS_GENERATOR */ -}; - -static int init_class_range(JSRuntime *rt, JSClassShortDef const *tab, - int start, int count) -{ - JSClassDef cm_s, *cm = &cm_s; - int i, class_id; - - for(i = 0; i < count; i++) { - class_id = i + start; - memset(cm, 0, sizeof(*cm)); - cm->finalizer = tab[i].finalizer; - cm->gc_mark = tab[i].gc_mark; - if (JS_NewClass1(rt, class_id, cm, tab[i].class_name) < 0) - return -1; - } - return 0; -} - -static JSValue JS_ThrowUnsupportedOperation(JSContext *ctx) -{ - return JS_ThrowTypeError(ctx, "unsupported operation"); -} - -static JSValue invalid_to_string(JSContext *ctx, JSValueConst val) -{ - return JS_ThrowUnsupportedOperation(ctx); -} - -static JSValue invalid_from_string(JSContext *ctx, const char *buf, - int radix, int flags, slimb_t *pexponent) -{ - return JS_NAN; -} - -static int invalid_unary_arith(JSContext *ctx, - JSValue *pres, OPCodeEnum op, JSValue op1) -{ - JS_FreeValue(ctx, op1); - JS_ThrowUnsupportedOperation(ctx); - return -1; -} - -static int invalid_binary_arith(JSContext *ctx, OPCodeEnum op, - JSValue *pres, JSValue op1, JSValue op2) -{ - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - JS_ThrowUnsupportedOperation(ctx); - return -1; -} - -static JSValue invalid_mul_pow10_to_float64(JSContext *ctx, const bf_t *a, - int64_t exponent) -{ - return JS_ThrowUnsupportedOperation(ctx); -} - -static int invalid_mul_pow10(JSContext *ctx, JSValue *sp) -{ - JS_ThrowUnsupportedOperation(ctx); - return -1; -} - -static void set_dummy_numeric_ops(JSNumericOperations *ops) -{ - ops->to_string = invalid_to_string; - ops->from_string = invalid_from_string; - ops->unary_arith = invalid_unary_arith; - ops->binary_arith = invalid_binary_arith; - ops->mul_pow10_to_float64 = invalid_mul_pow10_to_float64; - ops->mul_pow10 = invalid_mul_pow10; -} - -#if !defined(CONFIG_STACK_CHECK) -/* no stack limitation */ -static inline uintptr_t js_get_stack_pointer(void) -{ - return 0; -} - -static inline BOOL js_check_stack_overflow(JSRuntime *rt, size_t alloca_size) -{ - return FALSE; -} -#else -/* Note: OS and CPU dependent */ -static inline uintptr_t js_get_stack_pointer(void) -{ - return (uintptr_t)__builtin_frame_address(0); -} - -static inline BOOL js_check_stack_overflow(JSRuntime *rt, size_t alloca_size) -{ - uintptr_t sp; - sp = js_get_stack_pointer() - alloca_size; - return unlikely(sp < rt->stack_limit); -} -#endif - -JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque) -{ - JSRuntime *rt; - JSMallocState ms; - - memset(&ms, 0, sizeof(ms)); - ms.opaque = opaque; - ms.malloc_limit = -1; - - rt = mf->js_malloc(&ms, sizeof(JSRuntime)); - if (!rt) - return NULL; - memset(rt, 0, sizeof(*rt)); - rt->mf = *mf; - if (!rt->mf.js_malloc_usable_size) { - /* use dummy function if none provided */ - rt->mf.js_malloc_usable_size = js_malloc_usable_size_unknown; - } - rt->malloc_state = ms; - rt->malloc_gc_threshold = 256 * 1024; - - bf_context_init(&rt->bf_ctx, js_bf_realloc, rt); - set_dummy_numeric_ops(&rt->bigint_ops); -#ifdef CONFIG_BIGNUM - set_dummy_numeric_ops(&rt->bigfloat_ops); - set_dummy_numeric_ops(&rt->bigdecimal_ops); -#endif - - init_list_head(&rt->context_list); - init_list_head(&rt->gc_obj_list); - init_list_head(&rt->gc_zero_ref_count_list); - rt->gc_phase = JS_GC_PHASE_NONE; - -#ifdef DUMP_LEAKS - init_list_head(&rt->string_list); -#endif - init_list_head(&rt->job_list); - - if (JS_InitAtoms(rt)) - goto fail; - - /* create the object, array and function classes */ - if (init_class_range(rt, js_std_class_def, JS_CLASS_OBJECT, - countof(js_std_class_def)) < 0) - goto fail; - rt->class_array[JS_CLASS_ARGUMENTS].exotic = &js_arguments_exotic_methods; - rt->class_array[JS_CLASS_STRING].exotic = &js_string_exotic_methods; - rt->class_array[JS_CLASS_MODULE_NS].exotic = &js_module_ns_exotic_methods; - - rt->class_array[JS_CLASS_C_FUNCTION].call = js_call_c_function; - rt->class_array[JS_CLASS_C_FUNCTION_DATA].call = js_c_function_data_call; - rt->class_array[JS_CLASS_BOUND_FUNCTION].call = js_call_bound_function; - rt->class_array[JS_CLASS_GENERATOR_FUNCTION].call = js_generator_function_call; - if (init_shape_hash(rt)) - goto fail; - - rt->stack_size = JS_DEFAULT_STACK_SIZE; - JS_UpdateStackTop(rt); - - rt->current_exception = JS_NULL; - - return rt; - fail: - JS_FreeRuntime(rt); - return NULL; -} - -void *JS_GetRuntimeOpaque(JSRuntime *rt) -{ - return rt->user_opaque; -} - -void JS_SetRuntimeOpaque(JSRuntime *rt, void *opaque) -{ - rt->user_opaque = opaque; -} - -/* default memory allocation functions with memory limitation */ -static size_t js_def_malloc_usable_size(const void *ptr) -{ -#if defined(__APPLE__) - return malloc_size(ptr); -#elif defined(_WIN32) - return _msize((void *)ptr); -#elif defined(EMSCRIPTEN) - return 0; -#elif defined(__linux__) - return malloc_usable_size((void *)ptr); -#else - /* change this to `return 0;` if compilation fails */ - return malloc_usable_size((void *)ptr); -#endif -} - -static void *js_def_malloc(JSMallocState *s, size_t size) -{ - void *ptr; - - /* Do not allocate zero bytes: behavior is platform dependent */ - assert(size != 0); - - if (unlikely(s->malloc_size + size > s->malloc_limit)) - return NULL; - - ptr = malloc(size); - if (!ptr) - return NULL; - - s->malloc_count++; - s->malloc_size += js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD; - return ptr; -} - -static void js_def_free(JSMallocState *s, void *ptr) -{ - if (!ptr) - return; - - s->malloc_count--; - s->malloc_size -= js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD; - free(ptr); -} - -static void *js_def_realloc(JSMallocState *s, void *ptr, size_t size) -{ - size_t old_size; - - if (!ptr) { - if (size == 0) - return NULL; - return js_def_malloc(s, size); - } - old_size = js_def_malloc_usable_size(ptr); - if (size == 0) { - s->malloc_count--; - s->malloc_size -= old_size + MALLOC_OVERHEAD; - free(ptr); - return NULL; - } - if (s->malloc_size + size - old_size > s->malloc_limit) - return NULL; - - ptr = realloc(ptr, size); - if (!ptr) - return NULL; - - s->malloc_size += js_def_malloc_usable_size(ptr) - old_size; - return ptr; -} - -static const JSMallocFunctions def_malloc_funcs = { - js_def_malloc, - js_def_free, - js_def_realloc, - js_def_malloc_usable_size, -}; - -JSRuntime *JS_NewRuntime(void) -{ - return JS_NewRuntime2(&def_malloc_funcs, NULL); -} - -void JS_SetMemoryLimit(JSRuntime *rt, size_t limit) -{ - rt->malloc_state.malloc_limit = limit; -} - -/* use -1 to disable automatic GC */ -void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold) -{ - rt->malloc_gc_threshold = gc_threshold; -} - -#define malloc(s) malloc_is_forbidden(s) -#define free(p) free_is_forbidden(p) -#define realloc(p,s) realloc_is_forbidden(p,s) - -void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque) -{ - rt->interrupt_handler = cb; - rt->interrupt_opaque = opaque; -} - -void JS_SetCanBlock(JSRuntime *rt, BOOL can_block) -{ - rt->can_block = can_block; -} - -void JS_SetSharedArrayBufferFunctions(JSRuntime *rt, - const JSSharedArrayBufferFunctions *sf) -{ - rt->sab_funcs = *sf; -} - -/* return 0 if OK, < 0 if exception */ -int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func, - int argc, JSValueConst *argv) -{ - JSRuntime *rt = ctx->rt; - JSJobEntry *e; - int i; - - e = js_malloc(ctx, sizeof(*e) + argc * sizeof(JSValue)); - if (!e) - return -1; - e->ctx = ctx; - e->job_func = job_func; - e->argc = argc; - for(i = 0; i < argc; i++) { - e->argv[i] = JS_DupValue(ctx, argv[i]); - } - list_add_tail(&e->link, &rt->job_list); - return 0; -} - -BOOL JS_IsJobPending(JSRuntime *rt) -{ - return !list_empty(&rt->job_list); -} - -/* return < 0 if exception, 0 if no job pending, 1 if a job was - executed successfully. the context of the job is stored in '*pctx' */ -int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx) -{ - JSContext *ctx; - JSJobEntry *e; - JSValue res; - int i, ret; - - if (list_empty(&rt->job_list)) { - *pctx = NULL; - return 0; - } - - /* get the first pending job and execute it */ - e = list_entry(rt->job_list.next, JSJobEntry, link); - list_del(&e->link); - ctx = e->ctx; - res = e->job_func(e->ctx, e->argc, (JSValueConst *)e->argv); - for(i = 0; i < e->argc; i++) - JS_FreeValue(ctx, e->argv[i]); - if (JS_IsException(res)) - ret = -1; - else - ret = 1; - JS_FreeValue(ctx, res); - js_free(ctx, e); - *pctx = ctx; - return ret; -} - -static inline uint32_t atom_get_free(const JSAtomStruct *p) -{ - return (uintptr_t)p >> 1; -} - -static inline BOOL atom_is_free(const JSAtomStruct *p) -{ - return (uintptr_t)p & 1; -} - -static inline JSAtomStruct *atom_set_free(uint32_t v) -{ - return (JSAtomStruct *)(((uintptr_t)v << 1) | 1); -} - -/* Note: the string contents are uninitialized */ -static JSString *js_alloc_string_rt(JSRuntime *rt, int max_len, int is_wide_char) -{ - JSString *str; - str = js_malloc_rt(rt, sizeof(JSString) + (max_len << is_wide_char) + 1 - is_wide_char); - if (unlikely(!str)) - return NULL; - str->header.ref_count = 1; - str->is_wide_char = is_wide_char; - str->len = max_len; - str->atom_type = 0; - str->hash = 0; /* optional but costless */ - str->hash_next = 0; /* optional */ -#ifdef DUMP_LEAKS - list_add_tail(&str->link, &rt->string_list); -#endif - return str; -} - -static JSString *js_alloc_string(JSContext *ctx, int max_len, int is_wide_char) -{ - JSString *p; - p = js_alloc_string_rt(ctx->rt, max_len, is_wide_char); - if (unlikely(!p)) { - JS_ThrowOutOfMemory(ctx); - return NULL; - } - return p; -} - -/* same as JS_FreeValueRT() but faster */ -static inline void js_free_string(JSRuntime *rt, JSString *str) -{ - if (--str->header.ref_count <= 0) { - if (str->atom_type) { - JS_FreeAtomStruct(rt, str); - } else { -#ifdef DUMP_LEAKS - list_del(&str->link); -#endif - js_free_rt(rt, str); - } - } -} - -void JS_SetRuntimeInfo(JSRuntime *rt, const char *s) -{ - if (rt) - rt->rt_info = s; -} - -void JS_FreeRuntime(JSRuntime *rt) -{ - struct list_head *el, *el1; - int i; - - JS_FreeValueRT(rt, rt->current_exception); - - list_for_each_safe(el, el1, &rt->job_list) { - JSJobEntry *e = list_entry(el, JSJobEntry, link); - for(i = 0; i < e->argc; i++) - JS_FreeValueRT(rt, e->argv[i]); - js_free_rt(rt, e); - } - init_list_head(&rt->job_list); - - JS_RunGC(rt); - -#ifdef DUMP_LEAKS - /* leaking objects */ - { - BOOL header_done; - JSGCObjectHeader *p; - int count; - - /* remove the internal refcounts to display only the object - referenced externally */ - list_for_each(el, &rt->gc_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - p->mark = 0; - } - gc_decref(rt); - - header_done = FALSE; - list_for_each(el, &rt->gc_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - if (p->ref_count != 0) { - if (!header_done) { - printf("Object leaks:\n"); - JS_DumpObjectHeader(rt); - header_done = TRUE; - } - JS_DumpGCObject(rt, p); - } - } - - count = 0; - list_for_each(el, &rt->gc_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - if (p->ref_count == 0) { - count++; - } - } - if (count != 0) - printf("Secondary object leaks: %d\n", count); - } -#endif - assert(list_empty(&rt->gc_obj_list)); - - /* free the classes */ - for(i = 0; i < rt->class_count; i++) { - JSClass *cl = &rt->class_array[i]; - if (cl->class_id != 0) { - JS_FreeAtomRT(rt, cl->class_name); - } - } - js_free_rt(rt, rt->class_array); - - bf_context_end(&rt->bf_ctx); - -#ifdef DUMP_LEAKS - /* only the atoms defined in JS_InitAtoms() should be left */ - { - BOOL header_done = FALSE; - - for(i = 0; i < rt->atom_size; i++) { - JSAtomStruct *p = rt->atom_array[i]; - if (!atom_is_free(p) /* && p->str*/) { - if (i >= JS_ATOM_END || p->header.ref_count != 1) { - if (!header_done) { - header_done = TRUE; - if (rt->rt_info) { - printf("%s:1: atom leakage:", rt->rt_info); - } else { - printf("Atom leaks:\n" - " %6s %6s %s\n", - "ID", "REFCNT", "NAME"); - } - } - if (rt->rt_info) { - printf(" "); - } else { - printf(" %6u %6u ", i, p->header.ref_count); - } - switch (p->atom_type) { - case JS_ATOM_TYPE_STRING: - JS_DumpString(rt, p); - break; - case JS_ATOM_TYPE_GLOBAL_SYMBOL: - printf("Symbol.for("); - JS_DumpString(rt, p); - printf(")"); - break; - case JS_ATOM_TYPE_SYMBOL: - if (p->hash == JS_ATOM_HASH_SYMBOL) { - printf("Symbol("); - JS_DumpString(rt, p); - printf(")"); - } else { - printf("Private("); - JS_DumpString(rt, p); - printf(")"); - } - break; - } - if (rt->rt_info) { - printf(":%u", p->header.ref_count); - } else { - printf("\n"); - } - } - } - } - if (rt->rt_info && header_done) - printf("\n"); - } -#endif - - /* free the atoms */ - for(i = 0; i < rt->atom_size; i++) { - JSAtomStruct *p = rt->atom_array[i]; - if (!atom_is_free(p)) { -#ifdef DUMP_LEAKS - list_del(&p->link); -#endif - js_free_rt(rt, p); - } - } - js_free_rt(rt, rt->atom_array); - js_free_rt(rt, rt->atom_hash); - js_free_rt(rt, rt->shape_hash); -#ifdef DUMP_LEAKS - if (!list_empty(&rt->string_list)) { - if (rt->rt_info) { - printf("%s:1: string leakage:", rt->rt_info); - } else { - printf("String leaks:\n" - " %6s %s\n", - "REFCNT", "VALUE"); - } - list_for_each_safe(el, el1, &rt->string_list) { - JSString *str = list_entry(el, JSString, link); - if (rt->rt_info) { - printf(" "); - } else { - printf(" %6u ", str->header.ref_count); - } - JS_DumpString(rt, str); - if (rt->rt_info) { - printf(":%u", str->header.ref_count); - } else { - printf("\n"); - } - list_del(&str->link); - js_free_rt(rt, str); - } - if (rt->rt_info) - printf("\n"); - } - { - JSMallocState *s = &rt->malloc_state; - if (s->malloc_count > 1) { - if (rt->rt_info) - printf("%s:1: ", rt->rt_info); - printf("Memory leak: %"PRIu64" bytes lost in %"PRIu64" block%s\n", - (uint64_t)(s->malloc_size - sizeof(JSRuntime)), - (uint64_t)(s->malloc_count - 1), &"s"[s->malloc_count == 2]); - } - } -#endif - - { - JSMallocState ms = rt->malloc_state; - rt->mf.js_free(&ms, rt); - } -} - -JSContext *JS_NewContextRaw(JSRuntime *rt) -{ - JSContext *ctx; - int i; - - ctx = js_mallocz_rt(rt, sizeof(JSContext)); - if (!ctx) - return NULL; - ctx->header.ref_count = 1; - add_gc_object(rt, &ctx->header, JS_GC_OBJ_TYPE_JS_CONTEXT); - - ctx->class_proto = js_malloc_rt(rt, sizeof(ctx->class_proto[0]) * - rt->class_count); - if (!ctx->class_proto) { - js_free_rt(rt, ctx); - return NULL; - } - ctx->rt = rt; - list_add_tail(&ctx->link, &rt->context_list); - ctx->bf_ctx = &rt->bf_ctx; -#ifdef CONFIG_BIGNUM - ctx->fp_env.prec = 113; - ctx->fp_env.flags = bf_set_exp_bits(15) | BF_RNDN | BF_FLAG_SUBNORMAL; -#endif - for(i = 0; i < rt->class_count; i++) - ctx->class_proto[i] = JS_NULL; - ctx->array_ctor = JS_NULL; - ctx->regexp_ctor = JS_NULL; - ctx->promise_ctor = JS_NULL; - init_list_head(&ctx->loaded_modules); - - JS_AddIntrinsicBasicObjects(ctx); - return ctx; -} - -JSContext *JS_NewContext(JSRuntime *rt) -{ - JSContext *ctx; - - ctx = JS_NewContextRaw(rt); - if (!ctx) - return NULL; - - JS_AddIntrinsicBaseObjects(ctx); - JS_AddIntrinsicDate(ctx); - JS_AddIntrinsicEval(ctx); - JS_AddIntrinsicStringNormalize(ctx); - JS_AddIntrinsicRegExp(ctx); - JS_AddIntrinsicJSON(ctx); - JS_AddIntrinsicProxy(ctx); - JS_AddIntrinsicMapSet(ctx); - JS_AddIntrinsicTypedArrays(ctx); - JS_AddIntrinsicPromise(ctx); - JS_AddIntrinsicBigInt(ctx); - return ctx; -} - -void *JS_GetContextOpaque(JSContext *ctx) -{ - return ctx->user_opaque; -} - -void JS_SetContextOpaque(JSContext *ctx, void *opaque) -{ - ctx->user_opaque = opaque; -} - -/* set the new value and free the old value after (freeing the value - can reallocate the object data) */ -static inline void set_value(JSContext *ctx, JSValue *pval, JSValue new_val) -{ - JSValue old_val; - old_val = *pval; - *pval = new_val; - JS_FreeValue(ctx, old_val); -} - -void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj) -{ - JSRuntime *rt = ctx->rt; - assert(class_id < rt->class_count); - set_value(ctx, &ctx->class_proto[class_id], obj); -} - -JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id) -{ - JSRuntime *rt = ctx->rt; - assert(class_id < rt->class_count); - return JS_DupValue(ctx, ctx->class_proto[class_id]); -} - -typedef enum JSFreeModuleEnum { - JS_FREE_MODULE_ALL, - JS_FREE_MODULE_NOT_RESOLVED, -} JSFreeModuleEnum; - -/* XXX: would be more efficient with separate module lists */ -static void js_free_modules(JSContext *ctx, JSFreeModuleEnum flag) -{ - struct list_head *el, *el1; - list_for_each_safe(el, el1, &ctx->loaded_modules) { - JSModuleDef *m = list_entry(el, JSModuleDef, link); - if (flag == JS_FREE_MODULE_ALL || - (flag == JS_FREE_MODULE_NOT_RESOLVED && !m->resolved)) { - js_free_module_def(ctx, m); - } - } -} - -JSContext *JS_DupContext(JSContext *ctx) -{ - ctx->header.ref_count++; - return ctx; -} - -/* used by the GC */ -static void JS_MarkContext(JSRuntime *rt, JSContext *ctx, - JS_MarkFunc *mark_func) -{ - int i; - struct list_head *el; - - /* modules are not seen by the GC, so we directly mark the objects - referenced by each module */ - list_for_each(el, &ctx->loaded_modules) { - JSModuleDef *m = list_entry(el, JSModuleDef, link); - js_mark_module_def(rt, m, mark_func); - } - - JS_MarkValue(rt, ctx->global_obj, mark_func); - JS_MarkValue(rt, ctx->global_var_obj, mark_func); - - JS_MarkValue(rt, ctx->throw_type_error, mark_func); - JS_MarkValue(rt, ctx->eval_obj, mark_func); - - JS_MarkValue(rt, ctx->array_proto_values, mark_func); - for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) { - JS_MarkValue(rt, ctx->native_error_proto[i], mark_func); - } - for(i = 0; i < rt->class_count; i++) { - JS_MarkValue(rt, ctx->class_proto[i], mark_func); - } - JS_MarkValue(rt, ctx->iterator_proto, mark_func); - JS_MarkValue(rt, ctx->async_iterator_proto, mark_func); - JS_MarkValue(rt, ctx->promise_ctor, mark_func); - JS_MarkValue(rt, ctx->array_ctor, mark_func); - JS_MarkValue(rt, ctx->regexp_ctor, mark_func); - JS_MarkValue(rt, ctx->function_ctor, mark_func); - JS_MarkValue(rt, ctx->function_proto, mark_func); - - if (ctx->array_shape) - mark_func(rt, &ctx->array_shape->header); -} - -void JS_FreeContext(JSContext *ctx) -{ - JSRuntime *rt = ctx->rt; - int i; - - if (--ctx->header.ref_count > 0) - return; - assert(ctx->header.ref_count == 0); - -#ifdef DUMP_ATOMS - JS_DumpAtoms(ctx->rt); -#endif -#ifdef DUMP_SHAPES - JS_DumpShapes(ctx->rt); -#endif -#ifdef DUMP_OBJECTS - { - struct list_head *el; - JSGCObjectHeader *p; - printf("JSObjects: {\n"); - JS_DumpObjectHeader(ctx->rt); - list_for_each(el, &rt->gc_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - JS_DumpGCObject(rt, p); - } - printf("}\n"); - } -#endif -#ifdef DUMP_MEM - { - JSMemoryUsage stats; - JS_ComputeMemoryUsage(rt, &stats); - JS_DumpMemoryUsage(stdout, &stats, rt); - } -#endif - - js_free_modules(ctx, JS_FREE_MODULE_ALL); - - JS_FreeValue(ctx, ctx->global_obj); - JS_FreeValue(ctx, ctx->global_var_obj); - - JS_FreeValue(ctx, ctx->throw_type_error); - JS_FreeValue(ctx, ctx->eval_obj); - - JS_FreeValue(ctx, ctx->array_proto_values); - for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) { - JS_FreeValue(ctx, ctx->native_error_proto[i]); - } - for(i = 0; i < rt->class_count; i++) { - JS_FreeValue(ctx, ctx->class_proto[i]); - } - js_free_rt(rt, ctx->class_proto); - JS_FreeValue(ctx, ctx->iterator_proto); - JS_FreeValue(ctx, ctx->async_iterator_proto); - JS_FreeValue(ctx, ctx->promise_ctor); - JS_FreeValue(ctx, ctx->array_ctor); - JS_FreeValue(ctx, ctx->regexp_ctor); - JS_FreeValue(ctx, ctx->function_ctor); - JS_FreeValue(ctx, ctx->function_proto); - - js_free_shape_null(ctx->rt, ctx->array_shape); - - list_del(&ctx->link); - remove_gc_object(&ctx->header); - js_free_rt(ctx->rt, ctx); -} - -JSRuntime *JS_GetRuntime(JSContext *ctx) -{ - return ctx->rt; -} - -static void update_stack_limit(JSRuntime *rt) -{ - if (rt->stack_size == 0) { - rt->stack_limit = 0; /* no limit */ - } else { - rt->stack_limit = rt->stack_top - rt->stack_size; - } -} - -void JS_SetMaxStackSize(JSRuntime *rt, size_t stack_size) -{ - rt->stack_size = stack_size; - update_stack_limit(rt); -} - -void JS_UpdateStackTop(JSRuntime *rt) -{ - rt->stack_top = js_get_stack_pointer(); - update_stack_limit(rt); -} - -static inline BOOL is_strict_mode(JSContext *ctx) -{ - JSStackFrame *sf = ctx->rt->current_stack_frame; - return (sf && (sf->js_mode & JS_MODE_STRICT)); -} - -#ifdef CONFIG_BIGNUM -static inline BOOL is_math_mode(JSContext *ctx) -{ - JSStackFrame *sf = ctx->rt->current_stack_frame; - return (sf && (sf->js_mode & JS_MODE_MATH)); -} -#else -static inline BOOL is_math_mode(JSContext *ctx) -{ - return FALSE; -} -#endif - -/* JSAtom support */ - -#define JS_ATOM_TAG_INT (1U << 31) -#define JS_ATOM_MAX_INT (JS_ATOM_TAG_INT - 1) -#define JS_ATOM_MAX ((1U << 30) - 1) - -/* return the max count from the hash size */ -#define JS_ATOM_COUNT_RESIZE(n) ((n) * 2) - -static inline BOOL __JS_AtomIsConst(JSAtom v) -{ -#if defined(DUMP_LEAKS) && DUMP_LEAKS > 1 - return (int32_t)v <= 0; -#else - return (int32_t)v < JS_ATOM_END; -#endif -} - -static inline BOOL __JS_AtomIsTaggedInt(JSAtom v) -{ - return (v & JS_ATOM_TAG_INT) != 0; -} - -static inline JSAtom __JS_AtomFromUInt32(uint32_t v) -{ - return v | JS_ATOM_TAG_INT; -} - -static inline uint32_t __JS_AtomToUInt32(JSAtom atom) -{ - return atom & ~JS_ATOM_TAG_INT; -} - -static inline int is_num(int c) -{ - return c >= '0' && c <= '9'; -} - -/* return TRUE if the string is a number n with 0 <= n <= 2^32-1 */ -static inline BOOL is_num_string(uint32_t *pval, const JSString *p) -{ - uint32_t n; - uint64_t n64; - int c, i, len; - - len = p->len; - if (len == 0 || len > 10) - return FALSE; - if (p->is_wide_char) - c = p->u.str16[0]; - else - c = p->u.str8[0]; - if (is_num(c)) { - if (c == '0') { - if (len != 1) - return FALSE; - n = 0; - } else { - n = c - '0'; - for(i = 1; i < len; i++) { - if (p->is_wide_char) - c = p->u.str16[i]; - else - c = p->u.str8[i]; - if (!is_num(c)) - return FALSE; - n64 = (uint64_t)n * 10 + (c - '0'); - if ((n64 >> 32) != 0) - return FALSE; - n = n64; - } - } - *pval = n; - return TRUE; - } else { - return FALSE; - } -} - -/* XXX: could use faster version ? */ -static inline uint32_t hash_string8(const uint8_t *str, size_t len, uint32_t h) -{ - size_t i; - - for(i = 0; i < len; i++) - h = h * 263 + str[i]; - return h; -} - -static inline uint32_t hash_string16(const uint16_t *str, - size_t len, uint32_t h) -{ - size_t i; - - for(i = 0; i < len; i++) - h = h * 263 + str[i]; - return h; -} - -static uint32_t hash_string(const JSString *str, uint32_t h) -{ - if (str->is_wide_char) - h = hash_string16(str->u.str16, str->len, h); - else - h = hash_string8(str->u.str8, str->len, h); - return h; -} - -static __maybe_unused void JS_DumpString(JSRuntime *rt, - const JSString *p) -{ - int i, c, sep; - - if (p == NULL) { - printf(""); - return; - } - printf("%d", p->header.ref_count); - sep = (p->header.ref_count == 1) ? '\"' : '\''; - putchar(sep); - for(i = 0; i < p->len; i++) { - if (p->is_wide_char) - c = p->u.str16[i]; - else - c = p->u.str8[i]; - if (c == sep || c == '\\') { - putchar('\\'); - putchar(c); - } else if (c >= ' ' && c <= 126) { - putchar(c); - } else if (c == '\n') { - putchar('\\'); - putchar('n'); - } else { - printf("\\u%04x", c); - } - } - putchar(sep); -} - -static __maybe_unused void JS_DumpAtoms(JSRuntime *rt) -{ - JSAtomStruct *p; - int h, i; - /* This only dumps hashed atoms, not JS_ATOM_TYPE_SYMBOL atoms */ - printf("JSAtom count=%d size=%d hash_size=%d:\n", - rt->atom_count, rt->atom_size, rt->atom_hash_size); - printf("JSAtom hash table: {\n"); - for(i = 0; i < rt->atom_hash_size; i++) { - h = rt->atom_hash[i]; - if (h) { - printf(" %d:", i); - while (h) { - p = rt->atom_array[h]; - printf(" "); - JS_DumpString(rt, p); - h = p->hash_next; - } - printf("\n"); - } - } - printf("}\n"); - printf("JSAtom table: {\n"); - for(i = 0; i < rt->atom_size; i++) { - p = rt->atom_array[i]; - if (!atom_is_free(p)) { - printf(" %d: { %d %08x ", i, p->atom_type, p->hash); - if (!(p->len == 0 && p->is_wide_char != 0)) - JS_DumpString(rt, p); - printf(" %d }\n", p->hash_next); - } - } - printf("}\n"); -} - -static int JS_ResizeAtomHash(JSRuntime *rt, int new_hash_size) -{ - JSAtomStruct *p; - uint32_t new_hash_mask, h, i, hash_next1, j, *new_hash; - - assert((new_hash_size & (new_hash_size - 1)) == 0); /* power of two */ - new_hash_mask = new_hash_size - 1; - new_hash = js_mallocz_rt(rt, sizeof(rt->atom_hash[0]) * new_hash_size); - if (!new_hash) - return -1; - for(i = 0; i < rt->atom_hash_size; i++) { - h = rt->atom_hash[i]; - while (h != 0) { - p = rt->atom_array[h]; - hash_next1 = p->hash_next; - /* add in new hash table */ - j = p->hash & new_hash_mask; - p->hash_next = new_hash[j]; - new_hash[j] = h; - h = hash_next1; - } - } - js_free_rt(rt, rt->atom_hash); - rt->atom_hash = new_hash; - rt->atom_hash_size = new_hash_size; - rt->atom_count_resize = JS_ATOM_COUNT_RESIZE(new_hash_size); - // JS_DumpAtoms(rt); - return 0; -} - -static int JS_InitAtoms(JSRuntime *rt) -{ - int i, len, atom_type; - const char *p; - - rt->atom_hash_size = 0; - rt->atom_hash = NULL; - rt->atom_count = 0; - rt->atom_size = 0; - rt->atom_free_index = 0; - if (JS_ResizeAtomHash(rt, 256)) /* there are at least 195 predefined atoms */ - return -1; - - p = js_atom_init; - for(i = 1; i < JS_ATOM_END; i++) { - if (i == JS_ATOM_Private_brand) - atom_type = JS_ATOM_TYPE_PRIVATE; - else if (i >= JS_ATOM_Symbol_toPrimitive) - atom_type = JS_ATOM_TYPE_SYMBOL; - else - atom_type = JS_ATOM_TYPE_STRING; - len = strlen(p); - if (__JS_NewAtomInit(rt, p, len, atom_type) == JS_ATOM_NULL) - return -1; - p = p + len + 1; - } - return 0; -} - -static JSAtom JS_DupAtomRT(JSRuntime *rt, JSAtom v) -{ - JSAtomStruct *p; - - if (!__JS_AtomIsConst(v)) { - p = rt->atom_array[v]; - p->header.ref_count++; - } - return v; -} - -JSAtom JS_DupAtom(JSContext *ctx, JSAtom v) -{ - JSRuntime *rt; - JSAtomStruct *p; - - if (!__JS_AtomIsConst(v)) { - rt = ctx->rt; - p = rt->atom_array[v]; - p->header.ref_count++; - } - return v; -} - -static JSAtomKindEnum JS_AtomGetKind(JSContext *ctx, JSAtom v) -{ - JSRuntime *rt; - JSAtomStruct *p; - - rt = ctx->rt; - if (__JS_AtomIsTaggedInt(v)) - return JS_ATOM_KIND_STRING; - p = rt->atom_array[v]; - switch(p->atom_type) { - case JS_ATOM_TYPE_STRING: - return JS_ATOM_KIND_STRING; - case JS_ATOM_TYPE_GLOBAL_SYMBOL: - return JS_ATOM_KIND_SYMBOL; - case JS_ATOM_TYPE_SYMBOL: - switch(p->hash) { - case JS_ATOM_HASH_SYMBOL: - return JS_ATOM_KIND_SYMBOL; - case JS_ATOM_HASH_PRIVATE: - return JS_ATOM_KIND_PRIVATE; - default: - abort(); - } - default: - abort(); - } -} - -static BOOL JS_AtomIsString(JSContext *ctx, JSAtom v) -{ - return JS_AtomGetKind(ctx, v) == JS_ATOM_KIND_STRING; -} - -static JSAtom js_get_atom_index(JSRuntime *rt, JSAtomStruct *p) -{ - uint32_t i = p->hash_next; /* atom_index */ - if (p->atom_type != JS_ATOM_TYPE_SYMBOL) { - JSAtomStruct *p1; - - i = rt->atom_hash[p->hash & (rt->atom_hash_size - 1)]; - p1 = rt->atom_array[i]; - while (p1 != p) { - assert(i != 0); - i = p1->hash_next; - p1 = rt->atom_array[i]; - } - } - return i; -} - -/* string case (internal). Return JS_ATOM_NULL if error. 'str' is - freed. */ -static JSAtom __JS_NewAtom(JSRuntime *rt, JSString *str, int atom_type) -{ - uint32_t h, h1, i; - JSAtomStruct *p; - int len; - -#if 0 - printf("__JS_NewAtom: "); JS_DumpString(rt, str); printf("\n"); -#endif - if (atom_type < JS_ATOM_TYPE_SYMBOL) { - /* str is not NULL */ - if (str->atom_type == atom_type) { - /* str is the atom, return its index */ - i = js_get_atom_index(rt, str); - /* reduce string refcount and increase atom's unless constant */ - if (__JS_AtomIsConst(i)) - str->header.ref_count--; - return i; - } - /* try and locate an already registered atom */ - len = str->len; - h = hash_string(str, atom_type); - h &= JS_ATOM_HASH_MASK; - h1 = h & (rt->atom_hash_size - 1); - i = rt->atom_hash[h1]; - while (i != 0) { - p = rt->atom_array[i]; - if (p->hash == h && - p->atom_type == atom_type && - p->len == len && - js_string_memcmp(p, str, len) == 0) { - if (!__JS_AtomIsConst(i)) - p->header.ref_count++; - goto done; - } - i = p->hash_next; - } - } else { - h1 = 0; /* avoid warning */ - if (atom_type == JS_ATOM_TYPE_SYMBOL) { - h = JS_ATOM_HASH_SYMBOL; - } else { - h = JS_ATOM_HASH_PRIVATE; - atom_type = JS_ATOM_TYPE_SYMBOL; - } - } - - if (rt->atom_free_index == 0) { - /* allow new atom entries */ - uint32_t new_size, start; - JSAtomStruct **new_array; - - /* alloc new with size progression 3/2: - 4 6 9 13 19 28 42 63 94 141 211 316 474 711 1066 1599 2398 3597 5395 8092 - preallocating space for predefined atoms (at least 195). - */ - new_size = max_int(211, rt->atom_size * 3 / 2); - if (new_size > JS_ATOM_MAX) - goto fail; - /* XXX: should use realloc2 to use slack space */ - new_array = js_realloc_rt(rt, rt->atom_array, sizeof(*new_array) * new_size); - if (!new_array) - goto fail; - /* Note: the atom 0 is not used */ - start = rt->atom_size; - if (start == 0) { - /* JS_ATOM_NULL entry */ - p = js_mallocz_rt(rt, sizeof(JSAtomStruct)); - if (!p) { - js_free_rt(rt, new_array); - goto fail; - } - p->header.ref_count = 1; /* not refcounted */ - p->atom_type = JS_ATOM_TYPE_SYMBOL; -#ifdef DUMP_LEAKS - list_add_tail(&p->link, &rt->string_list); -#endif - new_array[0] = p; - rt->atom_count++; - start = 1; - } - rt->atom_size = new_size; - rt->atom_array = new_array; - rt->atom_free_index = start; - for(i = start; i < new_size; i++) { - uint32_t next; - if (i == (new_size - 1)) - next = 0; - else - next = i + 1; - rt->atom_array[i] = atom_set_free(next); - } - } - - if (str) { - if (str->atom_type == 0) { - p = str; - p->atom_type = atom_type; - } else { - p = js_malloc_rt(rt, sizeof(JSString) + - (str->len << str->is_wide_char) + - 1 - str->is_wide_char); - if (unlikely(!p)) - goto fail; - p->header.ref_count = 1; - p->is_wide_char = str->is_wide_char; - p->len = str->len; -#ifdef DUMP_LEAKS - list_add_tail(&p->link, &rt->string_list); -#endif - memcpy(p->u.str8, str->u.str8, (str->len << str->is_wide_char) + - 1 - str->is_wide_char); - js_free_string(rt, str); - } - } else { - p = js_malloc_rt(rt, sizeof(JSAtomStruct)); /* empty wide string */ - if (!p) - return JS_ATOM_NULL; - p->header.ref_count = 1; - p->is_wide_char = 1; /* Hack to represent NULL as a JSString */ - p->len = 0; -#ifdef DUMP_LEAKS - list_add_tail(&p->link, &rt->string_list); -#endif - } - - /* use an already free entry */ - i = rt->atom_free_index; - rt->atom_free_index = atom_get_free(rt->atom_array[i]); - rt->atom_array[i] = p; - - p->hash = h; - p->hash_next = i; /* atom_index */ - p->atom_type = atom_type; - - rt->atom_count++; - - if (atom_type != JS_ATOM_TYPE_SYMBOL) { - p->hash_next = rt->atom_hash[h1]; - rt->atom_hash[h1] = i; - if (unlikely(rt->atom_count >= rt->atom_count_resize)) - JS_ResizeAtomHash(rt, rt->atom_hash_size * 2); - } - - // JS_DumpAtoms(rt); - return i; - - fail: - i = JS_ATOM_NULL; - done: - if (str) - js_free_string(rt, str); - return i; -} - -/* only works with zero terminated 8 bit strings */ -static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len, - int atom_type) -{ - JSString *p; - p = js_alloc_string_rt(rt, len, 0); - if (!p) - return JS_ATOM_NULL; - memcpy(p->u.str8, str, len); - p->u.str8[len] = '\0'; - return __JS_NewAtom(rt, p, atom_type); -} - -static JSAtom __JS_FindAtom(JSRuntime *rt, const char *str, size_t len, - int atom_type) -{ - uint32_t h, h1, i; - JSAtomStruct *p; - - h = hash_string8((const uint8_t *)str, len, JS_ATOM_TYPE_STRING); - h &= JS_ATOM_HASH_MASK; - h1 = h & (rt->atom_hash_size - 1); - i = rt->atom_hash[h1]; - while (i != 0) { - p = rt->atom_array[i]; - if (p->hash == h && - p->atom_type == JS_ATOM_TYPE_STRING && - p->len == len && - p->is_wide_char == 0 && - memcmp(p->u.str8, str, len) == 0) { - if (!__JS_AtomIsConst(i)) - p->header.ref_count++; - return i; - } - i = p->hash_next; - } - return JS_ATOM_NULL; -} - -static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p) -{ -#if 0 /* JS_ATOM_NULL is not refcounted: __JS_AtomIsConst() includes 0 */ - if (unlikely(i == JS_ATOM_NULL)) { - p->header.ref_count = INT32_MAX / 2; - return; - } -#endif - uint32_t i = p->hash_next; /* atom_index */ - if (p->atom_type != JS_ATOM_TYPE_SYMBOL) { - JSAtomStruct *p0, *p1; - uint32_t h0; - - h0 = p->hash & (rt->atom_hash_size - 1); - i = rt->atom_hash[h0]; - p1 = rt->atom_array[i]; - if (p1 == p) { - rt->atom_hash[h0] = p1->hash_next; - } else { - for(;;) { - assert(i != 0); - p0 = p1; - i = p1->hash_next; - p1 = rt->atom_array[i]; - if (p1 == p) { - p0->hash_next = p1->hash_next; - break; - } - } - } - } - /* insert in free atom list */ - rt->atom_array[i] = atom_set_free(rt->atom_free_index); - rt->atom_free_index = i; - /* free the string structure */ -#ifdef DUMP_LEAKS - list_del(&p->link); -#endif - js_free_rt(rt, p); - rt->atom_count--; - assert(rt->atom_count >= 0); -} - -static void __JS_FreeAtom(JSRuntime *rt, uint32_t i) -{ - JSAtomStruct *p; - - p = rt->atom_array[i]; - if (--p->header.ref_count > 0) - return; - JS_FreeAtomStruct(rt, p); -} - -/* Warning: 'p' is freed */ -static JSAtom JS_NewAtomStr(JSContext *ctx, JSString *p) -{ - JSRuntime *rt = ctx->rt; - uint32_t n; - if (is_num_string(&n, p)) { - if (n <= JS_ATOM_MAX_INT) { - js_free_string(rt, p); - return __JS_AtomFromUInt32(n); - } - } - /* XXX: should generate an exception */ - return __JS_NewAtom(rt, p, JS_ATOM_TYPE_STRING); -} - -JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len) -{ - JSValue val; - - if (len == 0 || !is_digit(*str)) { - JSAtom atom = __JS_FindAtom(ctx->rt, str, len, JS_ATOM_TYPE_STRING); - if (atom) - return atom; - } - val = JS_NewStringLen(ctx, str, len); - if (JS_IsException(val)) - return JS_ATOM_NULL; - return JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(val)); -} - -JSAtom JS_NewAtom(JSContext *ctx, const char *str) -{ - return JS_NewAtomLen(ctx, str, strlen(str)); -} - -JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n) -{ - if (n <= JS_ATOM_MAX_INT) { - return __JS_AtomFromUInt32(n); - } else { - char buf[11]; - JSValue val; - snprintf(buf, sizeof(buf), "%u", n); - val = JS_NewString(ctx, buf); - if (JS_IsException(val)) - return JS_ATOM_NULL; - return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val), - JS_ATOM_TYPE_STRING); - } -} - -static JSAtom JS_NewAtomInt64(JSContext *ctx, int64_t n) -{ - if ((uint64_t)n <= JS_ATOM_MAX_INT) { - return __JS_AtomFromUInt32((uint32_t)n); - } else { - char buf[24]; - JSValue val; - snprintf(buf, sizeof(buf), "%" PRId64 , n); - val = JS_NewString(ctx, buf); - if (JS_IsException(val)) - return JS_ATOM_NULL; - return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val), - JS_ATOM_TYPE_STRING); - } -} - -/* 'p' is freed */ -static JSValue JS_NewSymbol(JSContext *ctx, JSString *p, int atom_type) -{ - JSRuntime *rt = ctx->rt; - JSAtom atom; - atom = __JS_NewAtom(rt, p, atom_type); - if (atom == JS_ATOM_NULL) - return JS_ThrowOutOfMemory(ctx); - return JS_MKPTR(JS_TAG_SYMBOL, rt->atom_array[atom]); -} - -/* descr must be a non-numeric string atom */ -static JSValue JS_NewSymbolFromAtom(JSContext *ctx, JSAtom descr, - int atom_type) -{ - JSRuntime *rt = ctx->rt; - JSString *p; - - assert(!__JS_AtomIsTaggedInt(descr)); - assert(descr < rt->atom_size); - p = rt->atom_array[descr]; - JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); - return JS_NewSymbol(ctx, p, atom_type); -} - -#define ATOM_GET_STR_BUF_SIZE 64 - -/* Should only be used for debug. */ -static const char *JS_AtomGetStrRT(JSRuntime *rt, char *buf, int buf_size, - JSAtom atom) -{ - if (__JS_AtomIsTaggedInt(atom)) { - snprintf(buf, buf_size, "%u", __JS_AtomToUInt32(atom)); - } else { - JSAtomStruct *p; - assert(atom < rt->atom_size); - if (atom == JS_ATOM_NULL) { - snprintf(buf, buf_size, ""); - } else { - int i, c; - char *q; - JSString *str; - - q = buf; - p = rt->atom_array[atom]; - assert(!atom_is_free(p)); - str = p; - if (str) { - if (!str->is_wide_char) { - /* special case ASCII strings */ - c = 0; - for(i = 0; i < str->len; i++) { - c |= str->u.str8[i]; - } - if (c < 0x80) - return (const char *)str->u.str8; - } - for(i = 0; i < str->len; i++) { - if (str->is_wide_char) - c = str->u.str16[i]; - else - c = str->u.str8[i]; - if ((q - buf) >= buf_size - UTF8_CHAR_LEN_MAX) - break; - if (c < 128) { - *q++ = c; - } else { - q += unicode_to_utf8((uint8_t *)q, c); - } - } - } - *q = '\0'; - } - } - return buf; -} - -static const char *JS_AtomGetStr(JSContext *ctx, char *buf, int buf_size, JSAtom atom) -{ - return JS_AtomGetStrRT(ctx->rt, buf, buf_size, atom); -} - -static JSValue __JS_AtomToValue(JSContext *ctx, JSAtom atom, BOOL force_string) -{ - char buf[ATOM_GET_STR_BUF_SIZE]; - - if (__JS_AtomIsTaggedInt(atom)) { - snprintf(buf, sizeof(buf), "%u", __JS_AtomToUInt32(atom)); - return JS_NewString(ctx, buf); - } else { - JSRuntime *rt = ctx->rt; - JSAtomStruct *p; - assert(atom < rt->atom_size); - p = rt->atom_array[atom]; - if (p->atom_type == JS_ATOM_TYPE_STRING) { - goto ret_string; - } else if (force_string) { - if (p->len == 0 && p->is_wide_char != 0) { - /* no description string */ - p = rt->atom_array[JS_ATOM_empty_string]; - } - ret_string: - return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); - } else { - return JS_DupValue(ctx, JS_MKPTR(JS_TAG_SYMBOL, p)); - } - } -} - -JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom) -{ - return __JS_AtomToValue(ctx, atom, FALSE); -} - -JSValue JS_AtomToString(JSContext *ctx, JSAtom atom) -{ - return __JS_AtomToValue(ctx, atom, TRUE); -} - -/* return TRUE if the atom is an array index (i.e. 0 <= index <= - 2^32-2 and return its value */ -static BOOL JS_AtomIsArrayIndex(JSContext *ctx, uint32_t *pval, JSAtom atom) -{ - if (__JS_AtomIsTaggedInt(atom)) { - *pval = __JS_AtomToUInt32(atom); - return TRUE; - } else { - JSRuntime *rt = ctx->rt; - JSAtomStruct *p; - uint32_t val; - - assert(atom < rt->atom_size); - p = rt->atom_array[atom]; - if (p->atom_type == JS_ATOM_TYPE_STRING && - is_num_string(&val, p) && val != -1) { - *pval = val; - return TRUE; - } else { - *pval = 0; - return FALSE; - } - } -} - -/* This test must be fast if atom is not a numeric index (e.g. a - method name). Return JS_UNDEFINED if not a numeric - index. JS_EXCEPTION can also be returned. */ -static JSValue JS_AtomIsNumericIndex1(JSContext *ctx, JSAtom atom) -{ - JSRuntime *rt = ctx->rt; - JSAtomStruct *p1; - JSString *p; - int c, len, ret; - JSValue num, str; - - if (__JS_AtomIsTaggedInt(atom)) - return JS_NewInt32(ctx, __JS_AtomToUInt32(atom)); - assert(atom < rt->atom_size); - p1 = rt->atom_array[atom]; - if (p1->atom_type != JS_ATOM_TYPE_STRING) - return JS_UNDEFINED; - p = p1; - len = p->len; - if (p->is_wide_char) { - const uint16_t *r = p->u.str16, *r_end = p->u.str16 + len; - if (r >= r_end) - return JS_UNDEFINED; - c = *r; - if (c == '-') { - if (r >= r_end) - return JS_UNDEFINED; - r++; - c = *r; - /* -0 case is specific */ - if (c == '0' && len == 2) - goto minus_zero; - } - /* XXX: should test NaN, but the tests do not check it */ - if (!is_num(c)) { - /* XXX: String should be normalized, therefore 8-bit only */ - const uint16_t nfinity16[7] = { 'n', 'f', 'i', 'n', 'i', 't', 'y' }; - if (!(c =='I' && (r_end - r) == 8 && - !memcmp(r + 1, nfinity16, sizeof(nfinity16)))) - return JS_UNDEFINED; - } - } else { - const uint8_t *r = p->u.str8, *r_end = p->u.str8 + len; - if (r >= r_end) - return JS_UNDEFINED; - c = *r; - if (c == '-') { - if (r >= r_end) - return JS_UNDEFINED; - r++; - c = *r; - /* -0 case is specific */ - if (c == '0' && len == 2) { - minus_zero: - return __JS_NewFloat64(ctx, -0.0); - } - } - if (!is_num(c)) { - if (!(c =='I' && (r_end - r) == 8 && - !memcmp(r + 1, "nfinity", 7))) - return JS_UNDEFINED; - } - } - /* XXX: bignum: would be better to only accept integer to avoid - relying on current floating point precision */ - /* this is ECMA CanonicalNumericIndexString primitive */ - num = JS_ToNumber(ctx, JS_MKPTR(JS_TAG_STRING, p)); - if (JS_IsException(num)) - return num; - str = JS_ToString(ctx, num); - if (JS_IsException(str)) { - JS_FreeValue(ctx, num); - return str; - } - ret = js_string_compare(ctx, p, JS_VALUE_GET_STRING(str)); - JS_FreeValue(ctx, str); - if (ret == 0) { - return num; - } else { - JS_FreeValue(ctx, num); - return JS_UNDEFINED; - } -} - -/* return -1 if exception or TRUE/FALSE */ -static int JS_AtomIsNumericIndex(JSContext *ctx, JSAtom atom) -{ - JSValue num; - num = JS_AtomIsNumericIndex1(ctx, atom); - if (likely(JS_IsUndefined(num))) - return FALSE; - if (JS_IsException(num)) - return -1; - JS_FreeValue(ctx, num); - return TRUE; -} - -void JS_FreeAtom(JSContext *ctx, JSAtom v) -{ - if (!__JS_AtomIsConst(v)) - __JS_FreeAtom(ctx->rt, v); -} - -void JS_FreeAtomRT(JSRuntime *rt, JSAtom v) -{ - if (!__JS_AtomIsConst(v)) - __JS_FreeAtom(rt, v); -} - -/* return TRUE if 'v' is a symbol with a string description */ -static BOOL JS_AtomSymbolHasDescription(JSContext *ctx, JSAtom v) -{ - JSRuntime *rt; - JSAtomStruct *p; - - rt = ctx->rt; - if (__JS_AtomIsTaggedInt(v)) - return FALSE; - p = rt->atom_array[v]; - return (((p->atom_type == JS_ATOM_TYPE_SYMBOL && - p->hash == JS_ATOM_HASH_SYMBOL) || - p->atom_type == JS_ATOM_TYPE_GLOBAL_SYMBOL) && - !(p->len == 0 && p->is_wide_char != 0)); -} - -static __maybe_unused void print_atom(JSContext *ctx, JSAtom atom) -{ - char buf[ATOM_GET_STR_BUF_SIZE]; - const char *p; - int i; - - /* XXX: should handle embedded null characters */ - /* XXX: should move encoding code to JS_AtomGetStr */ - p = JS_AtomGetStr(ctx, buf, sizeof(buf), atom); - for (i = 0; p[i]; i++) { - int c = (unsigned char)p[i]; - if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || - (c == '_' || c == '$') || (c >= '0' && c <= '9' && i > 0))) - break; - } - if (i > 0 && p[i] == '\0') { - printf("%s", p); - } else { - putchar('"'); - printf("%.*s", i, p); - for (; p[i]; i++) { - int c = (unsigned char)p[i]; - if (c == '\"' || c == '\\') { - putchar('\\'); - putchar(c); - } else if (c >= ' ' && c <= 126) { - putchar(c); - } else if (c == '\n') { - putchar('\\'); - putchar('n'); - } else { - printf("\\u%04x", c); - } - } - putchar('\"'); - } -} - -/* free with JS_FreeCString() */ -const char *JS_AtomToCString(JSContext *ctx, JSAtom atom) -{ - JSValue str; - const char *cstr; - - str = JS_AtomToString(ctx, atom); - if (JS_IsException(str)) - return NULL; - cstr = JS_ToCString(ctx, str); - JS_FreeValue(ctx, str); - return cstr; -} - -/* return a string atom containing name concatenated with str1 */ -static JSAtom js_atom_concat_str(JSContext *ctx, JSAtom name, const char *str1) -{ - JSValue str; - JSAtom atom; - const char *cstr; - char *cstr2; - size_t len, len1; - - str = JS_AtomToString(ctx, name); - if (JS_IsException(str)) - return JS_ATOM_NULL; - cstr = JS_ToCStringLen(ctx, &len, str); - if (!cstr) - goto fail; - len1 = strlen(str1); - cstr2 = js_malloc(ctx, len + len1 + 1); - if (!cstr2) - goto fail; - memcpy(cstr2, cstr, len); - memcpy(cstr2 + len, str1, len1); - cstr2[len + len1] = '\0'; - atom = JS_NewAtomLen(ctx, cstr2, len + len1); - js_free(ctx, cstr2); - JS_FreeCString(ctx, cstr); - JS_FreeValue(ctx, str); - return atom; - fail: - JS_FreeCString(ctx, cstr); - JS_FreeValue(ctx, str); - return JS_ATOM_NULL; -} - -static JSAtom js_atom_concat_num(JSContext *ctx, JSAtom name, uint32_t n) -{ - char buf[16]; - snprintf(buf, sizeof(buf), "%u", n); - return js_atom_concat_str(ctx, name, buf); -} - -static inline BOOL JS_IsEmptyString(JSValueConst v) -{ - return JS_VALUE_GET_TAG(v) == JS_TAG_STRING && JS_VALUE_GET_STRING(v)->len == 0; -} - -/* JSClass support */ - -#ifdef CONFIG_ATOMICS -static pthread_mutex_t js_class_id_mutex = PTHREAD_MUTEX_INITIALIZER; -#endif - -/* a new class ID is allocated if *pclass_id != 0 */ -JSClassID JS_NewClassID(JSClassID *pclass_id) -{ - JSClassID class_id; -#ifdef CONFIG_ATOMICS - pthread_mutex_lock(&js_class_id_mutex); -#endif - class_id = *pclass_id; - if (class_id == 0) { - class_id = js_class_id_alloc++; - *pclass_id = class_id; - } -#ifdef CONFIG_ATOMICS - pthread_mutex_unlock(&js_class_id_mutex); -#endif - return class_id; -} - -BOOL JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id) -{ - return (class_id < rt->class_count && - rt->class_array[class_id].class_id != 0); -} - -/* create a new object internal class. Return -1 if error, 0 if - OK. The finalizer can be NULL if none is needed. */ -static int JS_NewClass1(JSRuntime *rt, JSClassID class_id, - const JSClassDef *class_def, JSAtom name) -{ - int new_size, i; - JSClass *cl, *new_class_array; - struct list_head *el; - - if (class_id >= (1 << 16)) - return -1; - if (class_id < rt->class_count && - rt->class_array[class_id].class_id != 0) - return -1; - - if (class_id >= rt->class_count) { - new_size = max_int(JS_CLASS_INIT_COUNT, - max_int(class_id + 1, rt->class_count * 3 / 2)); - - /* reallocate the context class prototype array, if any */ - list_for_each(el, &rt->context_list) { - JSContext *ctx = list_entry(el, JSContext, link); - JSValue *new_tab; - new_tab = js_realloc_rt(rt, ctx->class_proto, - sizeof(ctx->class_proto[0]) * new_size); - if (!new_tab) - return -1; - for(i = rt->class_count; i < new_size; i++) - new_tab[i] = JS_NULL; - ctx->class_proto = new_tab; - } - /* reallocate the class array */ - new_class_array = js_realloc_rt(rt, rt->class_array, - sizeof(JSClass) * new_size); - if (!new_class_array) - return -1; - memset(new_class_array + rt->class_count, 0, - (new_size - rt->class_count) * sizeof(JSClass)); - rt->class_array = new_class_array; - rt->class_count = new_size; - } - cl = &rt->class_array[class_id]; - cl->class_id = class_id; - cl->class_name = JS_DupAtomRT(rt, name); - cl->finalizer = class_def->finalizer; - cl->gc_mark = class_def->gc_mark; - cl->call = class_def->call; - cl->exotic = class_def->exotic; - return 0; -} - -int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def) -{ - int ret, len; - JSAtom name; - - len = strlen(class_def->class_name); - name = __JS_FindAtom(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING); - if (name == JS_ATOM_NULL) { - name = __JS_NewAtomInit(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING); - if (name == JS_ATOM_NULL) - return -1; - } - ret = JS_NewClass1(rt, class_id, class_def, name); - JS_FreeAtomRT(rt, name); - return ret; -} - -static JSValue js_new_string8(JSContext *ctx, const uint8_t *buf, int len) -{ - JSString *str; - - if (len <= 0) { - return JS_AtomToString(ctx, JS_ATOM_empty_string); - } - str = js_alloc_string(ctx, len, 0); - if (!str) - return JS_EXCEPTION; - memcpy(str->u.str8, buf, len); - str->u.str8[len] = '\0'; - return JS_MKPTR(JS_TAG_STRING, str); -} - -static JSValue js_new_string16(JSContext *ctx, const uint16_t *buf, int len) -{ - JSString *str; - str = js_alloc_string(ctx, len, 1); - if (!str) - return JS_EXCEPTION; - memcpy(str->u.str16, buf, len * 2); - return JS_MKPTR(JS_TAG_STRING, str); -} - -static JSValue js_new_string_char(JSContext *ctx, uint16_t c) -{ - if (c < 0x100) { - uint8_t ch8 = c; - return js_new_string8(ctx, &ch8, 1); - } else { - uint16_t ch16 = c; - return js_new_string16(ctx, &ch16, 1); - } -} - -static JSValue js_sub_string(JSContext *ctx, JSString *p, int start, int end) -{ - int len = end - start; - if (start == 0 && end == p->len) { - return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); - } - if (p->is_wide_char && len > 0) { - JSString *str; - int i; - uint16_t c = 0; - for (i = start; i < end; i++) { - c |= p->u.str16[i]; - } - if (c > 0xFF) - return js_new_string16(ctx, p->u.str16 + start, len); - - str = js_alloc_string(ctx, len, 0); - if (!str) - return JS_EXCEPTION; - for (i = 0; i < len; i++) { - str->u.str8[i] = p->u.str16[start + i]; - } - str->u.str8[len] = '\0'; - return JS_MKPTR(JS_TAG_STRING, str); - } else { - return js_new_string8(ctx, p->u.str8 + start, len); - } -} - -typedef struct StringBuffer { - JSContext *ctx; - JSString *str; - int len; - int size; - int is_wide_char; - int error_status; -} StringBuffer; - -/* It is valid to call string_buffer_end() and all string_buffer functions even - if string_buffer_init() or another string_buffer function returns an error. - If the error_status is set, string_buffer_end() returns JS_EXCEPTION. - */ -static int string_buffer_init2(JSContext *ctx, StringBuffer *s, int size, - int is_wide) -{ - s->ctx = ctx; - s->size = size; - s->len = 0; - s->is_wide_char = is_wide; - s->error_status = 0; - s->str = js_alloc_string(ctx, size, is_wide); - if (unlikely(!s->str)) { - s->size = 0; - return s->error_status = -1; - } -#ifdef DUMP_LEAKS - /* the StringBuffer may reallocate the JSString, only link it at the end */ - list_del(&s->str->link); -#endif - return 0; -} - -static inline int string_buffer_init(JSContext *ctx, StringBuffer *s, int size) -{ - return string_buffer_init2(ctx, s, size, 0); -} - -static void string_buffer_free(StringBuffer *s) -{ - js_free(s->ctx, s->str); - s->str = NULL; -} - -static int string_buffer_set_error(StringBuffer *s) -{ - js_free(s->ctx, s->str); - s->str = NULL; - s->size = 0; - s->len = 0; - return s->error_status = -1; -} - -static no_inline int string_buffer_widen(StringBuffer *s, int size) -{ - JSString *str; - size_t slack; - int i; - - if (s->error_status) - return -1; - - str = js_realloc2(s->ctx, s->str, sizeof(JSString) + (size << 1), &slack); - if (!str) - return string_buffer_set_error(s); - size += slack >> 1; - for(i = s->len; i-- > 0;) { - str->u.str16[i] = str->u.str8[i]; - } - s->is_wide_char = 1; - s->size = size; - s->str = str; - return 0; -} - -static no_inline int string_buffer_realloc(StringBuffer *s, int new_len, int c) -{ - JSString *new_str; - int new_size; - size_t new_size_bytes, slack; - - if (s->error_status) - return -1; - - if (new_len > JS_STRING_LEN_MAX) { - JS_ThrowInternalError(s->ctx, "string too long"); - return string_buffer_set_error(s); - } - new_size = min_int(max_int(new_len, s->size * 3 / 2), JS_STRING_LEN_MAX); - if (!s->is_wide_char && c >= 0x100) { - return string_buffer_widen(s, new_size); - } - new_size_bytes = sizeof(JSString) + (new_size << s->is_wide_char) + 1 - s->is_wide_char; - new_str = js_realloc2(s->ctx, s->str, new_size_bytes, &slack); - if (!new_str) - return string_buffer_set_error(s); - new_size = min_int(new_size + (slack >> s->is_wide_char), JS_STRING_LEN_MAX); - s->size = new_size; - s->str = new_str; - return 0; -} - -static no_inline int string_buffer_putc_slow(StringBuffer *s, uint32_t c) -{ - if (unlikely(s->len >= s->size)) { - if (string_buffer_realloc(s, s->len + 1, c)) - return -1; - } - if (s->is_wide_char) { - s->str->u.str16[s->len++] = c; - } else if (c < 0x100) { - s->str->u.str8[s->len++] = c; - } else { - if (string_buffer_widen(s, s->size)) - return -1; - s->str->u.str16[s->len++] = c; - } - return 0; -} - -/* 0 <= c <= 0xff */ -static int string_buffer_putc8(StringBuffer *s, uint32_t c) -{ - if (unlikely(s->len >= s->size)) { - if (string_buffer_realloc(s, s->len + 1, c)) - return -1; - } - if (s->is_wide_char) { - s->str->u.str16[s->len++] = c; - } else { - s->str->u.str8[s->len++] = c; - } - return 0; -} - -/* 0 <= c <= 0xffff */ -static int string_buffer_putc16(StringBuffer *s, uint32_t c) -{ - if (likely(s->len < s->size)) { - if (s->is_wide_char) { - s->str->u.str16[s->len++] = c; - return 0; - } else if (c < 0x100) { - s->str->u.str8[s->len++] = c; - return 0; - } - } - return string_buffer_putc_slow(s, c); -} - -/* 0 <= c <= 0x10ffff */ -static int string_buffer_putc(StringBuffer *s, uint32_t c) -{ - if (unlikely(c >= 0x10000)) { - /* surrogate pair */ - c -= 0x10000; - if (string_buffer_putc16(s, (c >> 10) + 0xd800)) - return -1; - c = (c & 0x3ff) + 0xdc00; - } - return string_buffer_putc16(s, c); -} - -static int string_get(const JSString *p, int idx) { - return p->is_wide_char ? p->u.str16[idx] : p->u.str8[idx]; -} - -static int string_getc(const JSString *p, int *pidx) -{ - int idx, c, c1; - idx = *pidx; - if (p->is_wide_char) { - c = p->u.str16[idx++]; - if (c >= 0xd800 && c < 0xdc00 && idx < p->len) { - c1 = p->u.str16[idx]; - if (c1 >= 0xdc00 && c1 < 0xe000) { - c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000; - idx++; - } - } - } else { - c = p->u.str8[idx++]; - } - *pidx = idx; - return c; -} - -static int string_buffer_write8(StringBuffer *s, const uint8_t *p, int len) -{ - int i; - - if (s->len + len > s->size) { - if (string_buffer_realloc(s, s->len + len, 0)) - return -1; - } - if (s->is_wide_char) { - for (i = 0; i < len; i++) { - s->str->u.str16[s->len + i] = p[i]; - } - s->len += len; - } else { - memcpy(&s->str->u.str8[s->len], p, len); - s->len += len; - } - return 0; -} - -static int string_buffer_write16(StringBuffer *s, const uint16_t *p, int len) -{ - int c = 0, i; - - for (i = 0; i < len; i++) { - c |= p[i]; - } - if (s->len + len > s->size) { - if (string_buffer_realloc(s, s->len + len, c)) - return -1; - } else if (!s->is_wide_char && c >= 0x100) { - if (string_buffer_widen(s, s->size)) - return -1; - } - if (s->is_wide_char) { - memcpy(&s->str->u.str16[s->len], p, len << 1); - s->len += len; - } else { - for (i = 0; i < len; i++) { - s->str->u.str8[s->len + i] = p[i]; - } - s->len += len; - } - return 0; -} - -/* appending an ASCII string */ -static int string_buffer_puts8(StringBuffer *s, const char *str) -{ - return string_buffer_write8(s, (const uint8_t *)str, strlen(str)); -} - -static int string_buffer_concat(StringBuffer *s, const JSString *p, - uint32_t from, uint32_t to) -{ - if (to <= from) - return 0; - if (p->is_wide_char) - return string_buffer_write16(s, p->u.str16 + from, to - from); - else - return string_buffer_write8(s, p->u.str8 + from, to - from); -} - -static int string_buffer_concat_value(StringBuffer *s, JSValueConst v) -{ - JSString *p; - JSValue v1; - int res; - - if (s->error_status) { - /* prevent exception overload */ - return -1; - } - if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) { - v1 = JS_ToString(s->ctx, v); - if (JS_IsException(v1)) - return string_buffer_set_error(s); - p = JS_VALUE_GET_STRING(v1); - res = string_buffer_concat(s, p, 0, p->len); - JS_FreeValue(s->ctx, v1); - return res; - } - p = JS_VALUE_GET_STRING(v); - return string_buffer_concat(s, p, 0, p->len); -} - -static int string_buffer_concat_value_free(StringBuffer *s, JSValue v) -{ - JSString *p; - int res; - - if (s->error_status) { - /* prevent exception overload */ - JS_FreeValue(s->ctx, v); - return -1; - } - if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) { - v = JS_ToStringFree(s->ctx, v); - if (JS_IsException(v)) - return string_buffer_set_error(s); - } - p = JS_VALUE_GET_STRING(v); - res = string_buffer_concat(s, p, 0, p->len); - JS_FreeValue(s->ctx, v); - return res; -} - -static int string_buffer_fill(StringBuffer *s, int c, int count) -{ - /* XXX: optimize */ - if (s->len + count > s->size) { - if (string_buffer_realloc(s, s->len + count, c)) - return -1; - } - while (count-- > 0) { - if (string_buffer_putc16(s, c)) - return -1; - } - return 0; -} - -static JSValue string_buffer_end(StringBuffer *s) -{ - JSString *str; - str = s->str; - if (s->error_status) - return JS_EXCEPTION; - if (s->len == 0) { - js_free(s->ctx, str); - s->str = NULL; - return JS_AtomToString(s->ctx, JS_ATOM_empty_string); - } - if (s->len < s->size) { - /* smaller size so js_realloc should not fail, but OK if it does */ - /* XXX: should add some slack to avoid unnecessary calls */ - /* XXX: might need to use malloc+free to ensure smaller size */ - str = js_realloc_rt(s->ctx->rt, str, sizeof(JSString) + - (s->len << s->is_wide_char) + 1 - s->is_wide_char); - if (str == NULL) - str = s->str; - s->str = str; - } - if (!s->is_wide_char) - str->u.str8[s->len] = 0; -#ifdef DUMP_LEAKS - list_add_tail(&str->link, &s->ctx->rt->string_list); -#endif - str->is_wide_char = s->is_wide_char; - str->len = s->len; - s->str = NULL; - return JS_MKPTR(JS_TAG_STRING, str); -} - -/* create a string from a UTF-8 buffer */ -JSValue JS_NewStringLen(JSContext *ctx, const char *buf, size_t buf_len) -{ - const uint8_t *p, *p_end, *p_start, *p_next; - uint32_t c; - StringBuffer b_s, *b = &b_s; - size_t len1; - - p_start = (const uint8_t *)buf; - p_end = p_start + buf_len; - p = p_start; - while (p < p_end && *p < 128) - p++; - len1 = p - p_start; - if (len1 > JS_STRING_LEN_MAX) - return JS_ThrowInternalError(ctx, "string too long"); - if (p == p_end) { - /* ASCII string */ - return js_new_string8(ctx, (const uint8_t *)buf, buf_len); - } else { - if (string_buffer_init(ctx, b, buf_len)) - goto fail; - string_buffer_write8(b, p_start, len1); - while (p < p_end) { - if (*p < 128) { - string_buffer_putc8(b, *p++); - } else { - /* parse utf-8 sequence, return 0xFFFFFFFF for error */ - c = unicode_from_utf8(p, p_end - p, &p_next); - if (c < 0x10000) { - p = p_next; - } else if (c <= 0x10FFFF) { - p = p_next; - /* surrogate pair */ - c -= 0x10000; - string_buffer_putc16(b, (c >> 10) + 0xd800); - c = (c & 0x3ff) + 0xdc00; - } else { - /* invalid char */ - c = 0xfffd; - /* skip the invalid chars */ - /* XXX: seems incorrect. Why not just use c = *p++; ? */ - while (p < p_end && (*p >= 0x80 && *p < 0xc0)) - p++; - if (p < p_end) { - p++; - while (p < p_end && (*p >= 0x80 && *p < 0xc0)) - p++; - } - } - string_buffer_putc16(b, c); - } - } - } - return string_buffer_end(b); - - fail: - string_buffer_free(b); - return JS_EXCEPTION; -} - -static JSValue JS_ConcatString3(JSContext *ctx, const char *str1, - JSValue str2, const char *str3) -{ - StringBuffer b_s, *b = &b_s; - int len1, len3; - JSString *p; - - if (unlikely(JS_VALUE_GET_TAG(str2) != JS_TAG_STRING)) { - str2 = JS_ToStringFree(ctx, str2); - if (JS_IsException(str2)) - goto fail; - } - p = JS_VALUE_GET_STRING(str2); - len1 = strlen(str1); - len3 = strlen(str3); - - if (string_buffer_init2(ctx, b, len1 + p->len + len3, p->is_wide_char)) - goto fail; - - string_buffer_write8(b, (const uint8_t *)str1, len1); - string_buffer_concat(b, p, 0, p->len); - string_buffer_write8(b, (const uint8_t *)str3, len3); - - JS_FreeValue(ctx, str2); - return string_buffer_end(b); - - fail: - JS_FreeValue(ctx, str2); - return JS_EXCEPTION; -} - -JSValue JS_NewString(JSContext *ctx, const char *str) -{ - return JS_NewStringLen(ctx, str, strlen(str)); -} - -JSValue JS_NewAtomString(JSContext *ctx, const char *str) -{ - JSAtom atom = JS_NewAtom(ctx, str); - if (atom == JS_ATOM_NULL) - return JS_EXCEPTION; - JSValue val = JS_AtomToString(ctx, atom); - JS_FreeAtom(ctx, atom); - return val; -} - -/* return (NULL, 0) if exception. */ -/* return pointer into a JSString with a live ref_count */ -/* cesu8 determines if non-BMP1 codepoints are encoded as 1 or 2 utf-8 sequences */ -const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, BOOL cesu8) -{ - JSValue val; - JSString *str, *str_new; - int pos, len, c, c1; - uint8_t *q; - - if (JS_VALUE_GET_TAG(val1) != JS_TAG_STRING) { - val = JS_ToString(ctx, val1); - if (JS_IsException(val)) - goto fail; - } else { - val = JS_DupValue(ctx, val1); - } - - str = JS_VALUE_GET_STRING(val); - len = str->len; - if (!str->is_wide_char) { - const uint8_t *src = str->u.str8; - int count; - - /* count the number of non-ASCII characters */ - /* Scanning the whole string is required for ASCII strings, - and computing the number of non-ASCII bytes is less expensive - than testing each byte, hence this method is faster for ASCII - strings, which is the most common case. - */ - count = 0; - for (pos = 0; pos < len; pos++) { - count += src[pos] >> 7; - } - if (count == 0) { - if (plen) - *plen = len; - return (const char *)src; - } - str_new = js_alloc_string(ctx, len + count, 0); - if (!str_new) - goto fail; - q = str_new->u.str8; - for (pos = 0; pos < len; pos++) { - c = src[pos]; - if (c < 0x80) { - *q++ = c; - } else { - *q++ = (c >> 6) | 0xc0; - *q++ = (c & 0x3f) | 0x80; - } - } - } else { - const uint16_t *src = str->u.str16; - /* Allocate 3 bytes per 16 bit code point. Surrogate pairs may - produce 4 bytes but use 2 code points. - */ - str_new = js_alloc_string(ctx, len * 3, 0); - if (!str_new) - goto fail; - q = str_new->u.str8; - pos = 0; - while (pos < len) { - c = src[pos++]; - if (c < 0x80) { - *q++ = c; - } else { - if (c >= 0xd800 && c < 0xdc00) { - if (pos < len && !cesu8) { - c1 = src[pos]; - if (c1 >= 0xdc00 && c1 < 0xe000) { - pos++; - /* surrogate pair */ - c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000; - } else { - /* Keep unmatched surrogate code points */ - /* c = 0xfffd; */ /* error */ - } - } else { - /* Keep unmatched surrogate code points */ - /* c = 0xfffd; */ /* error */ - } - } - q += unicode_to_utf8(q, c); - } - } - } - - *q = '\0'; - str_new->len = q - str_new->u.str8; - JS_FreeValue(ctx, val); - if (plen) - *plen = str_new->len; - return (const char *)str_new->u.str8; - fail: - if (plen) - *plen = 0; - return NULL; -} - -void JS_FreeCString(JSContext *ctx, const char *ptr) -{ - JSString *p; - if (!ptr) - return; - /* purposely removing constness */ - p = container_of(ptr, JSString, u); - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); -} - -static int memcmp16_8(const uint16_t *src1, const uint8_t *src2, int len) -{ - int c, i; - for(i = 0; i < len; i++) { - c = src1[i] - src2[i]; - if (c != 0) - return c; - } - return 0; -} - -static int memcmp16(const uint16_t *src1, const uint16_t *src2, int len) -{ - int c, i; - for(i = 0; i < len; i++) { - c = src1[i] - src2[i]; - if (c != 0) - return c; - } - return 0; -} - -static int js_string_memcmp(const JSString *p1, const JSString *p2, int len) -{ - int res; - - if (likely(!p1->is_wide_char)) { - if (likely(!p2->is_wide_char)) - res = memcmp(p1->u.str8, p2->u.str8, len); - else - res = -memcmp16_8(p2->u.str16, p1->u.str8, len); - } else { - if (!p2->is_wide_char) - res = memcmp16_8(p1->u.str16, p2->u.str8, len); - else - res = memcmp16(p1->u.str16, p2->u.str16, len); - } - return res; -} - -/* return < 0, 0 or > 0 */ -static int js_string_compare(JSContext *ctx, - const JSString *p1, const JSString *p2) -{ - int res, len; - len = min_int(p1->len, p2->len); - res = js_string_memcmp(p1, p2, len); - if (res == 0) { - if (p1->len == p2->len) - res = 0; - else if (p1->len < p2->len) - res = -1; - else - res = 1; - } - return res; -} - -static void copy_str16(uint16_t *dst, const JSString *p, int offset, int len) -{ - if (p->is_wide_char) { - memcpy(dst, p->u.str16 + offset, len * 2); - } else { - const uint8_t *src1 = p->u.str8 + offset; - int i; - - for(i = 0; i < len; i++) - dst[i] = src1[i]; - } -} - -static JSValue JS_ConcatString1(JSContext *ctx, - const JSString *p1, const JSString *p2) -{ - JSString *p; - uint32_t len; - int is_wide_char; - - len = p1->len + p2->len; - if (len > JS_STRING_LEN_MAX) - return JS_ThrowInternalError(ctx, "string too long"); - is_wide_char = p1->is_wide_char | p2->is_wide_char; - p = js_alloc_string(ctx, len, is_wide_char); - if (!p) - return JS_EXCEPTION; - if (!is_wide_char) { - memcpy(p->u.str8, p1->u.str8, p1->len); - memcpy(p->u.str8 + p1->len, p2->u.str8, p2->len); - p->u.str8[len] = '\0'; - } else { - copy_str16(p->u.str16, p1, 0, p1->len); - copy_str16(p->u.str16 + p1->len, p2, 0, p2->len); - } - return JS_MKPTR(JS_TAG_STRING, p); -} - -/* op1 and op2 are converted to strings. For convience, op1 or op2 = - JS_EXCEPTION are accepted and return JS_EXCEPTION. */ -static JSValue JS_ConcatString(JSContext *ctx, JSValue op1, JSValue op2) -{ - JSValue ret; - JSString *p1, *p2; - - if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_STRING)) { - op1 = JS_ToStringFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - return JS_EXCEPTION; - } - } - if (unlikely(JS_VALUE_GET_TAG(op2) != JS_TAG_STRING)) { - op2 = JS_ToStringFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - return JS_EXCEPTION; - } - } - p1 = JS_VALUE_GET_STRING(op1); - p2 = JS_VALUE_GET_STRING(op2); - - /* XXX: could also check if p1 is empty */ - if (p2->len == 0) { - goto ret_op1; - } - if (p1->header.ref_count == 1 && p1->is_wide_char == p2->is_wide_char - && js_malloc_usable_size(ctx, p1) >= sizeof(*p1) + ((p1->len + p2->len) << p2->is_wide_char) + 1 - p1->is_wide_char) { - /* Concatenate in place in available space at the end of p1 */ - if (p1->is_wide_char) { - memcpy(p1->u.str16 + p1->len, p2->u.str16, p2->len << 1); - p1->len += p2->len; - } else { - memcpy(p1->u.str8 + p1->len, p2->u.str8, p2->len); - p1->len += p2->len; - p1->u.str8[p1->len] = '\0'; - } - ret_op1: - JS_FreeValue(ctx, op2); - return op1; - } - ret = JS_ConcatString1(ctx, p1, p2); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - return ret; -} - -/* Shape support */ - -static inline size_t get_shape_size(size_t hash_size, size_t prop_size) -{ - return hash_size * sizeof(uint32_t) + sizeof(JSShape) + - prop_size * sizeof(JSShapeProperty); -} - -static inline JSShape *get_shape_from_alloc(void *sh_alloc, size_t hash_size) -{ - return (JSShape *)(void *)((uint32_t *)sh_alloc + hash_size); -} - -static inline uint32_t *prop_hash_end(JSShape *sh) -{ - return (uint32_t *)sh; -} - -static inline void *get_alloc_from_shape(JSShape *sh) -{ - return prop_hash_end(sh) - ((intptr_t)sh->prop_hash_mask + 1); -} - -static inline JSShapeProperty *get_shape_prop(JSShape *sh) -{ - return sh->prop; -} - -static int init_shape_hash(JSRuntime *rt) -{ - rt->shape_hash_bits = 4; /* 16 shapes */ - rt->shape_hash_size = 1 << rt->shape_hash_bits; - rt->shape_hash_count = 0; - rt->shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) * - rt->shape_hash_size); - if (!rt->shape_hash) - return -1; - return 0; -} - -/* same magic hash multiplier as the Linux kernel */ -static uint32_t shape_hash(uint32_t h, uint32_t val) -{ - return (h + val) * 0x9e370001; -} - -/* truncate the shape hash to 'hash_bits' bits */ -static uint32_t get_shape_hash(uint32_t h, int hash_bits) -{ - return h >> (32 - hash_bits); -} - -static uint32_t shape_initial_hash(JSObject *proto) -{ - uint32_t h; - h = shape_hash(1, (uintptr_t)proto); - if (sizeof(proto) > 4) - h = shape_hash(h, (uint64_t)(uintptr_t)proto >> 32); - return h; -} - -static int resize_shape_hash(JSRuntime *rt, int new_shape_hash_bits) -{ - int new_shape_hash_size, i; - uint32_t h; - JSShape **new_shape_hash, *sh, *sh_next; - - new_shape_hash_size = 1 << new_shape_hash_bits; - new_shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) * - new_shape_hash_size); - if (!new_shape_hash) - return -1; - for(i = 0; i < rt->shape_hash_size; i++) { - for(sh = rt->shape_hash[i]; sh != NULL; sh = sh_next) { - sh_next = sh->shape_hash_next; - h = get_shape_hash(sh->hash, new_shape_hash_bits); - sh->shape_hash_next = new_shape_hash[h]; - new_shape_hash[h] = sh; - } - } - js_free_rt(rt, rt->shape_hash); - rt->shape_hash_bits = new_shape_hash_bits; - rt->shape_hash_size = new_shape_hash_size; - rt->shape_hash = new_shape_hash; - return 0; -} - -static void js_shape_hash_link(JSRuntime *rt, JSShape *sh) -{ - uint32_t h; - h = get_shape_hash(sh->hash, rt->shape_hash_bits); - sh->shape_hash_next = rt->shape_hash[h]; - rt->shape_hash[h] = sh; - rt->shape_hash_count++; -} - -static void js_shape_hash_unlink(JSRuntime *rt, JSShape *sh) -{ - uint32_t h; - JSShape **psh; - - h = get_shape_hash(sh->hash, rt->shape_hash_bits); - psh = &rt->shape_hash[h]; - while (*psh != sh) - psh = &(*psh)->shape_hash_next; - *psh = sh->shape_hash_next; - rt->shape_hash_count--; -} - -/* create a new empty shape with prototype 'proto' */ -static no_inline JSShape *js_new_shape2(JSContext *ctx, JSObject *proto, - int hash_size, int prop_size) -{ - JSRuntime *rt = ctx->rt; - void *sh_alloc; - JSShape *sh; - - /* resize the shape hash table if necessary */ - if (2 * (rt->shape_hash_count + 1) > rt->shape_hash_size) { - resize_shape_hash(rt, rt->shape_hash_bits + 1); - } - - sh_alloc = js_malloc(ctx, get_shape_size(hash_size, prop_size)); - if (!sh_alloc) - return NULL; - sh = get_shape_from_alloc(sh_alloc, hash_size); - sh->header.ref_count = 1; - add_gc_object(rt, &sh->header, JS_GC_OBJ_TYPE_SHAPE); - if (proto) - JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, proto)); - sh->proto = proto; - memset(prop_hash_end(sh) - hash_size, 0, sizeof(prop_hash_end(sh)[0]) * - hash_size); - sh->prop_hash_mask = hash_size - 1; - sh->prop_size = prop_size; - sh->prop_count = 0; - sh->deleted_prop_count = 0; - - /* insert in the hash table */ - sh->hash = shape_initial_hash(proto); - sh->is_hashed = TRUE; - sh->has_small_array_index = FALSE; - js_shape_hash_link(ctx->rt, sh); - return sh; -} - -static JSShape *js_new_shape(JSContext *ctx, JSObject *proto) -{ - return js_new_shape2(ctx, proto, JS_PROP_INITIAL_HASH_SIZE, - JS_PROP_INITIAL_SIZE); -} - -/* The shape is cloned. The new shape is not inserted in the shape - hash table */ -static JSShape *js_clone_shape(JSContext *ctx, JSShape *sh1) -{ - JSShape *sh; - void *sh_alloc, *sh_alloc1; - size_t size; - JSShapeProperty *pr; - uint32_t i, hash_size; - - hash_size = sh1->prop_hash_mask + 1; - size = get_shape_size(hash_size, sh1->prop_size); - sh_alloc = js_malloc(ctx, size); - if (!sh_alloc) - return NULL; - sh_alloc1 = get_alloc_from_shape(sh1); - memcpy(sh_alloc, sh_alloc1, size); - sh = get_shape_from_alloc(sh_alloc, hash_size); - sh->header.ref_count = 1; - add_gc_object(ctx->rt, &sh->header, JS_GC_OBJ_TYPE_SHAPE); - sh->is_hashed = FALSE; - if (sh->proto) { - JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto)); - } - for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) { - JS_DupAtom(ctx, pr->atom); - } - return sh; -} - -static JSShape *js_dup_shape(JSShape *sh) -{ - sh->header.ref_count++; - return sh; -} - -static void js_free_shape0(JSRuntime *rt, JSShape *sh) -{ - uint32_t i; - JSShapeProperty *pr; - - assert(sh->header.ref_count == 0); - if (sh->is_hashed) - js_shape_hash_unlink(rt, sh); - if (sh->proto != NULL) { - JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, sh->proto)); - } - pr = get_shape_prop(sh); - for(i = 0; i < sh->prop_count; i++) { - JS_FreeAtomRT(rt, pr->atom); - pr++; - } - remove_gc_object(&sh->header); - js_free_rt(rt, get_alloc_from_shape(sh)); -} - -static void js_free_shape(JSRuntime *rt, JSShape *sh) -{ - if (unlikely(--sh->header.ref_count <= 0)) { - js_free_shape0(rt, sh); - } -} - -static void js_free_shape_null(JSRuntime *rt, JSShape *sh) -{ - if (sh) - js_free_shape(rt, sh); -} - -/* make space to hold at least 'count' properties */ -static no_inline int resize_properties(JSContext *ctx, JSShape **psh, - JSObject *p, uint32_t count) -{ - JSShape *sh; - uint32_t new_size, new_hash_size, new_hash_mask, i; - JSShapeProperty *pr; - void *sh_alloc; - intptr_t h; - JSShape *old_sh; - - sh = *psh; - new_size = max_int(count, sh->prop_size * 3 / 2); - /* Reallocate prop array first to avoid crash or size inconsistency - in case of memory allocation failure */ - if (p) { - JSProperty *new_prop; - new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size); - if (unlikely(!new_prop)) - return -1; - p->prop = new_prop; - } - new_hash_size = sh->prop_hash_mask + 1; - while (new_hash_size < new_size) - new_hash_size = 2 * new_hash_size; - /* resize the property shapes. Using js_realloc() is not possible in - case the GC runs during the allocation */ - old_sh = sh; - sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size)); - if (!sh_alloc) - return -1; - sh = get_shape_from_alloc(sh_alloc, new_hash_size); - list_del(&old_sh->header.link); - /* copy all the shape properties */ - memcpy(sh, old_sh, - sizeof(JSShape) + sizeof(sh->prop[0]) * old_sh->prop_count); - list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list); - - if (new_hash_size != (sh->prop_hash_mask + 1)) { - /* resize the hash table and the properties */ - new_hash_mask = new_hash_size - 1; - sh->prop_hash_mask = new_hash_mask; - memset(prop_hash_end(sh) - new_hash_size, 0, - sizeof(prop_hash_end(sh)[0]) * new_hash_size); - for(i = 0, pr = sh->prop; i < sh->prop_count; i++, pr++) { - if (pr->atom != JS_ATOM_NULL) { - h = ((uintptr_t)pr->atom & new_hash_mask); - pr->hash_next = prop_hash_end(sh)[-h - 1]; - prop_hash_end(sh)[-h - 1] = i + 1; - } - } - } else { - /* just copy the previous hash table */ - memcpy(prop_hash_end(sh) - new_hash_size, prop_hash_end(old_sh) - new_hash_size, - sizeof(prop_hash_end(sh)[0]) * new_hash_size); - } - js_free(ctx, get_alloc_from_shape(old_sh)); - *psh = sh; - sh->prop_size = new_size; - return 0; -} - -/* remove the deleted properties. */ -static int compact_properties(JSContext *ctx, JSObject *p) -{ - JSShape *sh, *old_sh; - void *sh_alloc; - intptr_t h; - uint32_t new_hash_size, i, j, new_hash_mask, new_size; - JSShapeProperty *old_pr, *pr; - JSProperty *prop, *new_prop; - - sh = p->shape; - assert(!sh->is_hashed); - - new_size = max_int(JS_PROP_INITIAL_SIZE, - sh->prop_count - sh->deleted_prop_count); - assert(new_size <= sh->prop_size); - - new_hash_size = sh->prop_hash_mask + 1; - while ((new_hash_size / 2) >= new_size) - new_hash_size = new_hash_size / 2; - new_hash_mask = new_hash_size - 1; - - /* resize the hash table and the properties */ - old_sh = sh; - sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size)); - if (!sh_alloc) - return -1; - sh = get_shape_from_alloc(sh_alloc, new_hash_size); - list_del(&old_sh->header.link); - memcpy(sh, old_sh, sizeof(JSShape)); - list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list); - - memset(prop_hash_end(sh) - new_hash_size, 0, - sizeof(prop_hash_end(sh)[0]) * new_hash_size); - - j = 0; - old_pr = old_sh->prop; - pr = sh->prop; - prop = p->prop; - for(i = 0; i < sh->prop_count; i++) { - if (old_pr->atom != JS_ATOM_NULL) { - pr->atom = old_pr->atom; - pr->flags = old_pr->flags; - h = ((uintptr_t)old_pr->atom & new_hash_mask); - pr->hash_next = prop_hash_end(sh)[-h - 1]; - prop_hash_end(sh)[-h - 1] = j + 1; - prop[j] = prop[i]; - j++; - pr++; - } - old_pr++; - } - assert(j == (sh->prop_count - sh->deleted_prop_count)); - sh->prop_hash_mask = new_hash_mask; - sh->prop_size = new_size; - sh->deleted_prop_count = 0; - sh->prop_count = j; - - p->shape = sh; - js_free(ctx, get_alloc_from_shape(old_sh)); - - /* reduce the size of the object properties */ - new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size); - if (new_prop) - p->prop = new_prop; - return 0; -} - -static int add_shape_property(JSContext *ctx, JSShape **psh, - JSObject *p, JSAtom atom, int prop_flags) -{ - JSRuntime *rt = ctx->rt; - JSShape *sh = *psh; - JSShapeProperty *pr, *prop; - uint32_t hash_mask, new_shape_hash = 0; - intptr_t h; - - /* update the shape hash */ - if (sh->is_hashed) { - js_shape_hash_unlink(rt, sh); - new_shape_hash = shape_hash(shape_hash(sh->hash, atom), prop_flags); - } - - if (unlikely(sh->prop_count >= sh->prop_size)) { - if (resize_properties(ctx, psh, p, sh->prop_count + 1)) { - /* in case of error, reinsert in the hash table. - sh is still valid if resize_properties() failed */ - if (sh->is_hashed) - js_shape_hash_link(rt, sh); - return -1; - } - sh = *psh; - } - if (sh->is_hashed) { - sh->hash = new_shape_hash; - js_shape_hash_link(rt, sh); - } - /* Initialize the new shape property. - The object property at p->prop[sh->prop_count] is uninitialized */ - prop = get_shape_prop(sh); - pr = &prop[sh->prop_count++]; - pr->atom = JS_DupAtom(ctx, atom); - pr->flags = prop_flags; - sh->has_small_array_index |= __JS_AtomIsTaggedInt(atom); - /* add in hash table */ - hash_mask = sh->prop_hash_mask; - h = atom & hash_mask; - pr->hash_next = prop_hash_end(sh)[-h - 1]; - prop_hash_end(sh)[-h - 1] = sh->prop_count; - return 0; -} - -/* find a hashed empty shape matching the prototype. Return NULL if - not found */ -static JSShape *find_hashed_shape_proto(JSRuntime *rt, JSObject *proto) -{ - JSShape *sh1; - uint32_t h, h1; - - h = shape_initial_hash(proto); - h1 = get_shape_hash(h, rt->shape_hash_bits); - for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) { - if (sh1->hash == h && - sh1->proto == proto && - sh1->prop_count == 0) { - return sh1; - } - } - return NULL; -} - -/* find a hashed shape matching sh + (prop, prop_flags). Return NULL if - not found */ -static JSShape *find_hashed_shape_prop(JSRuntime *rt, JSShape *sh, - JSAtom atom, int prop_flags) -{ - JSShape *sh1; - uint32_t h, h1, i, n; - - h = sh->hash; - h = shape_hash(h, atom); - h = shape_hash(h, prop_flags); - h1 = get_shape_hash(h, rt->shape_hash_bits); - for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) { - /* we test the hash first so that the rest is done only if the - shapes really match */ - if (sh1->hash == h && - sh1->proto == sh->proto && - sh1->prop_count == ((n = sh->prop_count) + 1)) { - for(i = 0; i < n; i++) { - if (unlikely(sh1->prop[i].atom != sh->prop[i].atom) || - unlikely(sh1->prop[i].flags != sh->prop[i].flags)) - goto next; - } - if (unlikely(sh1->prop[n].atom != atom) || - unlikely(sh1->prop[n].flags != prop_flags)) - goto next; - return sh1; - } - next: ; - } - return NULL; -} - -static __maybe_unused void JS_DumpShape(JSRuntime *rt, int i, JSShape *sh) -{ - char atom_buf[ATOM_GET_STR_BUF_SIZE]; - int j; - - /* XXX: should output readable class prototype */ - printf("%5d %3d%c %14p %5d %5d", i, - sh->header.ref_count, " *"[sh->is_hashed], - (void *)sh->proto, sh->prop_size, sh->prop_count); - for(j = 0; j < sh->prop_count; j++) { - printf(" %s", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), - sh->prop[j].atom)); - } - printf("\n"); -} - -static __maybe_unused void JS_DumpShapes(JSRuntime *rt) -{ - int i; - JSShape *sh; - struct list_head *el; - JSObject *p; - JSGCObjectHeader *gp; - - printf("JSShapes: {\n"); - printf("%5s %4s %14s %5s %5s %s\n", "SLOT", "REFS", "PROTO", "SIZE", "COUNT", "PROPS"); - for(i = 0; i < rt->shape_hash_size; i++) { - for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) { - JS_DumpShape(rt, i, sh); - assert(sh->is_hashed); - } - } - /* dump non-hashed shapes */ - list_for_each(el, &rt->gc_obj_list) { - gp = list_entry(el, JSGCObjectHeader, link); - if (gp->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) { - p = (JSObject *)gp; - if (!p->shape->is_hashed) { - JS_DumpShape(rt, -1, p->shape); - } - } - } - printf("}\n"); -} - -static JSValue JS_NewObjectFromShape(JSContext *ctx, JSShape *sh, JSClassID class_id) -{ - JSObject *p; - - js_trigger_gc(ctx->rt, sizeof(JSObject)); - p = js_malloc(ctx, sizeof(JSObject)); - if (unlikely(!p)) - goto fail; - p->class_id = class_id; - p->extensible = TRUE; - p->free_mark = 0; - p->is_exotic = 0; - p->fast_array = 0; - p->is_constructor = 0; - p->is_uncatchable_error = 0; - p->tmp_mark = 0; - p->is_HTMLDDA = 0; - p->first_weak_ref = NULL; - p->u.opaque = NULL; - p->shape = sh; - p->prop = js_malloc(ctx, sizeof(JSProperty) * sh->prop_size); - if (unlikely(!p->prop)) { - js_free(ctx, p); - fail: - js_free_shape(ctx->rt, sh); - return JS_EXCEPTION; - } - - switch(class_id) { - case JS_CLASS_OBJECT: - break; - case JS_CLASS_ARRAY: - { - JSProperty *pr; - p->is_exotic = 1; - p->fast_array = 1; - p->u.array.u.values = NULL; - p->u.array.count = 0; - p->u.array.u1.size = 0; - /* the length property is always the first one */ - if (likely(sh == ctx->array_shape)) { - pr = &p->prop[0]; - } else { - /* only used for the first array */ - /* cannot fail */ - pr = add_property(ctx, p, JS_ATOM_length, - JS_PROP_WRITABLE | JS_PROP_LENGTH); - } - pr->u.value = JS_NewInt32(ctx, 0); - } - break; - case JS_CLASS_C_FUNCTION: - p->prop[0].u.value = JS_UNDEFINED; - break; - case JS_CLASS_ARGUMENTS: - case JS_CLASS_UINT8C_ARRAY: - case JS_CLASS_INT8_ARRAY: - case JS_CLASS_UINT8_ARRAY: - case JS_CLASS_INT16_ARRAY: - case JS_CLASS_UINT16_ARRAY: - case JS_CLASS_INT32_ARRAY: - case JS_CLASS_UINT32_ARRAY: - case JS_CLASS_BIG_INT64_ARRAY: - case JS_CLASS_BIG_UINT64_ARRAY: - case JS_CLASS_FLOAT32_ARRAY: - case JS_CLASS_FLOAT64_ARRAY: - p->is_exotic = 1; - p->fast_array = 1; - p->u.array.u.ptr = NULL; - p->u.array.count = 0; - break; - case JS_CLASS_DATAVIEW: - p->u.array.u.ptr = NULL; - p->u.array.count = 0; - break; - case JS_CLASS_NUMBER: - case JS_CLASS_STRING: - case JS_CLASS_BOOLEAN: - case JS_CLASS_SYMBOL: - case JS_CLASS_DATE: - case JS_CLASS_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_CLASS_BIG_FLOAT: - case JS_CLASS_BIG_DECIMAL: -#endif - p->u.object_data = JS_UNDEFINED; - goto set_exotic; - case JS_CLASS_REGEXP: - p->u.regexp.pattern = NULL; - p->u.regexp.bytecode = NULL; - goto set_exotic; - default: - set_exotic: - if (ctx->rt->class_array[class_id].exotic) { - p->is_exotic = 1; - } - break; - } - p->header.ref_count = 1; - add_gc_object(ctx->rt, &p->header, JS_GC_OBJ_TYPE_JS_OBJECT); - return JS_MKPTR(JS_TAG_OBJECT, p); -} - -static JSObject *get_proto_obj(JSValueConst proto_val) -{ - if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) - return NULL; - else - return JS_VALUE_GET_OBJ(proto_val); -} - -/* WARNING: proto must be an object or JS_NULL */ -JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto_val, - JSClassID class_id) -{ - JSShape *sh; - JSObject *proto; - - proto = get_proto_obj(proto_val); - sh = find_hashed_shape_proto(ctx->rt, proto); - if (likely(sh)) { - sh = js_dup_shape(sh); - } else { - sh = js_new_shape(ctx, proto); - if (!sh) - return JS_EXCEPTION; - } - return JS_NewObjectFromShape(ctx, sh, class_id); -} - -#if 0 -static JSValue JS_GetObjectData(JSContext *ctx, JSValueConst obj) -{ - JSObject *p; - - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - p = JS_VALUE_GET_OBJ(obj); - switch(p->class_id) { - case JS_CLASS_NUMBER: - case JS_CLASS_STRING: - case JS_CLASS_BOOLEAN: - case JS_CLASS_SYMBOL: - case JS_CLASS_DATE: - case JS_CLASS_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_CLASS_BIG_FLOAT: - case JS_CLASS_BIG_DECIMAL: -#endif - return JS_DupValue(ctx, p->u.object_data); - } - } - return JS_UNDEFINED; -} -#endif - -static int JS_SetObjectData(JSContext *ctx, JSValueConst obj, JSValue val) -{ - JSObject *p; - - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - p = JS_VALUE_GET_OBJ(obj); - switch(p->class_id) { - case JS_CLASS_NUMBER: - case JS_CLASS_STRING: - case JS_CLASS_BOOLEAN: - case JS_CLASS_SYMBOL: - case JS_CLASS_DATE: - case JS_CLASS_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_CLASS_BIG_FLOAT: - case JS_CLASS_BIG_DECIMAL: -#endif - JS_FreeValue(ctx, p->u.object_data); - p->u.object_data = val; - return 0; - } - } - JS_FreeValue(ctx, val); - if (!JS_IsException(obj)) - JS_ThrowTypeError(ctx, "invalid object type"); - return -1; -} - -JSValue JS_NewObjectClass(JSContext *ctx, int class_id) -{ - return JS_NewObjectProtoClass(ctx, ctx->class_proto[class_id], class_id); -} - -JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto) -{ - return JS_NewObjectProtoClass(ctx, proto, JS_CLASS_OBJECT); -} - -JSValue JS_NewArray(JSContext *ctx) -{ - return JS_NewObjectFromShape(ctx, js_dup_shape(ctx->array_shape), - JS_CLASS_ARRAY); -} - -JSValue JS_NewObject(JSContext *ctx) -{ - /* inline JS_NewObjectClass(ctx, JS_CLASS_OBJECT); */ - return JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], JS_CLASS_OBJECT); -} - -static void js_function_set_properties(JSContext *ctx, JSValueConst func_obj, - JSAtom name, int len) -{ - /* ES6 feature non compatible with ES5.1: length is configurable */ - JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_length, JS_NewInt32(ctx, len), - JS_PROP_CONFIGURABLE); - JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, - JS_AtomToString(ctx, name), JS_PROP_CONFIGURABLE); -} - -static BOOL js_class_has_bytecode(JSClassID class_id) -{ - return (class_id == JS_CLASS_BYTECODE_FUNCTION || - class_id == JS_CLASS_GENERATOR_FUNCTION || - class_id == JS_CLASS_ASYNC_FUNCTION || - class_id == JS_CLASS_ASYNC_GENERATOR_FUNCTION); -} - -/* return NULL without exception if not a function or no bytecode */ -static JSFunctionBytecode *JS_GetFunctionBytecode(JSValueConst val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return NULL; - p = JS_VALUE_GET_OBJ(val); - if (!js_class_has_bytecode(p->class_id)) - return NULL; - return p->u.func.function_bytecode; -} - -static void js_method_set_home_object(JSContext *ctx, JSValueConst func_obj, - JSValueConst home_obj) -{ - JSObject *p, *p1; - JSFunctionBytecode *b; - - if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT) - return; - p = JS_VALUE_GET_OBJ(func_obj); - if (!js_class_has_bytecode(p->class_id)) - return; - b = p->u.func.function_bytecode; - if (b->need_home_object) { - p1 = p->u.func.home_object; - if (p1) { - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); - } - if (JS_VALUE_GET_TAG(home_obj) == JS_TAG_OBJECT) - p1 = JS_VALUE_GET_OBJ(JS_DupValue(ctx, home_obj)); - else - p1 = NULL; - p->u.func.home_object = p1; - } -} - -static JSValue js_get_function_name(JSContext *ctx, JSAtom name) -{ - JSValue name_str; - - name_str = JS_AtomToString(ctx, name); - if (JS_AtomSymbolHasDescription(ctx, name)) { - name_str = JS_ConcatString3(ctx, "[", name_str, "]"); - } - return name_str; -} - -/* Modify the name of a method according to the atom and - 'flags'. 'flags' is a bitmask of JS_PROP_HAS_GET and - JS_PROP_HAS_SET. Also set the home object of the method. - Return < 0 if exception. */ -static int js_method_set_properties(JSContext *ctx, JSValueConst func_obj, - JSAtom name, int flags, JSValueConst home_obj) -{ - JSValue name_str; - - name_str = js_get_function_name(ctx, name); - if (flags & JS_PROP_HAS_GET) { - name_str = JS_ConcatString3(ctx, "get ", name_str, ""); - } else if (flags & JS_PROP_HAS_SET) { - name_str = JS_ConcatString3(ctx, "set ", name_str, ""); - } - if (JS_IsException(name_str)) - return -1; - if (JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name_str, - JS_PROP_CONFIGURABLE) < 0) - return -1; - js_method_set_home_object(ctx, func_obj, home_obj); - return 0; -} - -/* Note: at least 'length' arguments will be readable in 'argv' */ -static JSValue JS_NewCFunction3(JSContext *ctx, JSCFunction *func, - const char *name, - int length, JSCFunctionEnum cproto, int magic, - JSValueConst proto_val) -{ - JSValue func_obj; - JSObject *p; - JSAtom name_atom; - - func_obj = JS_NewObjectProtoClass(ctx, proto_val, JS_CLASS_C_FUNCTION); - if (JS_IsException(func_obj)) - return func_obj; - p = JS_VALUE_GET_OBJ(func_obj); - p->u.cfunc.realm = JS_DupContext(ctx); - p->u.cfunc.c_function.generic = func; - p->u.cfunc.length = length; - p->u.cfunc.cproto = cproto; - p->u.cfunc.magic = magic; - p->is_constructor = (cproto == JS_CFUNC_constructor || - cproto == JS_CFUNC_constructor_magic || - cproto == JS_CFUNC_constructor_or_func || - cproto == JS_CFUNC_constructor_or_func_magic); - if (!name) - name = ""; - name_atom = JS_NewAtom(ctx, name); - js_function_set_properties(ctx, func_obj, name_atom, length); - JS_FreeAtom(ctx, name_atom); - return func_obj; -} - -/* Note: at least 'length' arguments will be readable in 'argv' */ -JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func, - const char *name, - int length, JSCFunctionEnum cproto, int magic) -{ - return JS_NewCFunction3(ctx, func, name, length, cproto, magic, - ctx->function_proto); -} - -typedef struct JSCFunctionDataRecord { - JSCFunctionData *func; - uint8_t length; - uint8_t data_len; - uint16_t magic; - JSValue data[0]; -} JSCFunctionDataRecord; - -static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val) -{ - JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA); - int i; - - if (s) { - for(i = 0; i < s->data_len; i++) { - JS_FreeValueRT(rt, s->data[i]); - } - js_free_rt(rt, s); - } -} - -static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA); - int i; - - if (s) { - for(i = 0; i < s->data_len; i++) { - JS_MarkValue(rt, s->data[i], mark_func); - } - } -} - -static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_val, - int argc, JSValueConst *argv, int flags) -{ - JSCFunctionDataRecord *s = JS_GetOpaque(func_obj, JS_CLASS_C_FUNCTION_DATA); - JSValueConst *arg_buf; - int i; - - /* XXX: could add the function on the stack for debug */ - if (unlikely(argc < s->length)) { - arg_buf = alloca(sizeof(arg_buf[0]) * s->length); - for(i = 0; i < argc; i++) - arg_buf[i] = argv[i]; - for(i = argc; i < s->length; i++) - arg_buf[i] = JS_UNDEFINED; - } else { - arg_buf = argv; - } - - return s->func(ctx, this_val, argc, arg_buf, s->magic, s->data); -} - -JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func, - int length, int magic, int data_len, - JSValueConst *data) -{ - JSCFunctionDataRecord *s; - JSValue func_obj; - int i; - - func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto, - JS_CLASS_C_FUNCTION_DATA); - if (JS_IsException(func_obj)) - return func_obj; - s = js_malloc(ctx, sizeof(*s) + data_len * sizeof(JSValue)); - if (!s) { - JS_FreeValue(ctx, func_obj); - return JS_EXCEPTION; - } - s->func = func; - s->length = length; - s->data_len = data_len; - s->magic = magic; - for(i = 0; i < data_len; i++) - s->data[i] = JS_DupValue(ctx, data[i]); - JS_SetOpaque(func_obj, s); - js_function_set_properties(ctx, func_obj, - JS_ATOM_empty_string, length); - return func_obj; -} - -static JSContext *js_autoinit_get_realm(JSProperty *pr) -{ - return (JSContext *)(pr->u.init.realm_and_id & ~3); -} - -static JSAutoInitIDEnum js_autoinit_get_id(JSProperty *pr) -{ - return pr->u.init.realm_and_id & 3; -} - -static void js_autoinit_free(JSRuntime *rt, JSProperty *pr) -{ - JS_FreeContext(js_autoinit_get_realm(pr)); -} - -static void js_autoinit_mark(JSRuntime *rt, JSProperty *pr, - JS_MarkFunc *mark_func) -{ - mark_func(rt, &js_autoinit_get_realm(pr)->header); -} - -static void free_property(JSRuntime *rt, JSProperty *pr, int prop_flags) -{ - if (unlikely(prop_flags & JS_PROP_TMASK)) { - if ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - if (pr->u.getset.getter) - JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); - if (pr->u.getset.setter) - JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); - } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - free_var_ref(rt, pr->u.var_ref); - } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - js_autoinit_free(rt, pr); - } - } else { - JS_FreeValueRT(rt, pr->u.value); - } -} - -static force_inline JSShapeProperty *find_own_property1(JSObject *p, - JSAtom atom) -{ - JSShape *sh; - JSShapeProperty *pr, *prop; - intptr_t h; - sh = p->shape; - h = (uintptr_t)atom & sh->prop_hash_mask; - h = prop_hash_end(sh)[-h - 1]; - prop = get_shape_prop(sh); - while (h) { - pr = &prop[h - 1]; - if (likely(pr->atom == atom)) { - return pr; - } - h = pr->hash_next; - } - return NULL; -} - -static force_inline JSShapeProperty *find_own_property(JSProperty **ppr, - JSObject *p, - JSAtom atom) -{ - JSShape *sh; - JSShapeProperty *pr, *prop; - intptr_t h; - sh = p->shape; - h = (uintptr_t)atom & sh->prop_hash_mask; - h = prop_hash_end(sh)[-h - 1]; - prop = get_shape_prop(sh); - while (h) { - pr = &prop[h - 1]; - if (likely(pr->atom == atom)) { - *ppr = &p->prop[h - 1]; - /* the compiler should be able to assume that pr != NULL here */ - return pr; - } - h = pr->hash_next; - } - *ppr = NULL; - return NULL; -} - -/* indicate that the object may be part of a function prototype cycle */ -static void set_cycle_flag(JSContext *ctx, JSValueConst obj) -{ -} - -static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref) -{ - if (var_ref) { - assert(var_ref->header.ref_count > 0); - if (--var_ref->header.ref_count == 0) { - if (var_ref->is_detached) { - JS_FreeValueRT(rt, var_ref->value); - } else { - list_del(&var_ref->var_ref_link); /* still on the stack */ - if (var_ref->async_func) - async_func_free(rt, var_ref->async_func); - } - remove_gc_object(&var_ref->header); - js_free_rt(rt, var_ref); - } - } -} - -static void js_array_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - int i; - - for(i = 0; i < p->u.array.count; i++) { - JS_FreeValueRT(rt, p->u.array.u.values[i]); - } - js_free_rt(rt, p->u.array.u.values); -} - -static void js_array_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - int i; - - for(i = 0; i < p->u.array.count; i++) { - JS_MarkValue(rt, p->u.array.u.values[i], mark_func); - } -} - -static void js_object_data_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JS_FreeValueRT(rt, p->u.object_data); - p->u.object_data = JS_UNDEFINED; -} - -static void js_object_data_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JS_MarkValue(rt, p->u.object_data, mark_func); -} - -static void js_c_function_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - - if (p->u.cfunc.realm) - JS_FreeContext(p->u.cfunc.realm); -} - -static void js_c_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - - if (p->u.cfunc.realm) - mark_func(rt, &p->u.cfunc.realm->header); -} - -static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p1, *p = JS_VALUE_GET_OBJ(val); - JSFunctionBytecode *b; - JSVarRef **var_refs; - int i; - - p1 = p->u.func.home_object; - if (p1) { - JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, p1)); - } - b = p->u.func.function_bytecode; - if (b) { - var_refs = p->u.func.var_refs; - if (var_refs) { - for(i = 0; i < b->closure_var_count; i++) - free_var_ref(rt, var_refs[i]); - js_free_rt(rt, var_refs); - } - JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b)); - } -} - -static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSVarRef **var_refs = p->u.func.var_refs; - JSFunctionBytecode *b = p->u.func.function_bytecode; - int i; - - if (p->u.func.home_object) { - JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object), - mark_func); - } - if (b) { - if (var_refs) { - for(i = 0; i < b->closure_var_count; i++) { - JSVarRef *var_ref = var_refs[i]; - if (var_ref) { - mark_func(rt, &var_ref->header); - } - } - } - /* must mark the function bytecode because template objects may be - part of a cycle */ - JS_MarkValue(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b), mark_func); - } -} - -static void js_bound_function_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSBoundFunction *bf = p->u.bound_function; - int i; - - JS_FreeValueRT(rt, bf->func_obj); - JS_FreeValueRT(rt, bf->this_val); - for(i = 0; i < bf->argc; i++) { - JS_FreeValueRT(rt, bf->argv[i]); - } - js_free_rt(rt, bf); -} - -static void js_bound_function_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSBoundFunction *bf = p->u.bound_function; - int i; - - JS_MarkValue(rt, bf->func_obj, mark_func); - JS_MarkValue(rt, bf->this_val, mark_func); - for(i = 0; i < bf->argc; i++) - JS_MarkValue(rt, bf->argv[i], mark_func); -} - -static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSForInIterator *it = p->u.for_in_iterator; - int i; - - JS_FreeValueRT(rt, it->obj); - if (!it->is_array) { - for(i = 0; i < it->atom_count; i++) { - JS_FreeAtomRT(rt, it->tab_atom[i].atom); - } - js_free_rt(rt, it->tab_atom); - } - js_free_rt(rt, it); -} - -static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSForInIterator *it = p->u.for_in_iterator; - JS_MarkValue(rt, it->obj, mark_func); -} - -static void free_object(JSRuntime *rt, JSObject *p) -{ - int i; - JSClassFinalizer *finalizer; - JSShape *sh; - JSShapeProperty *pr; - - p->free_mark = 1; /* used to tell the object is invalid when - freeing cycles */ - /* free all the fields */ - sh = p->shape; - pr = get_shape_prop(sh); - for(i = 0; i < sh->prop_count; i++) { - free_property(rt, &p->prop[i], pr->flags); - pr++; - } - js_free_rt(rt, p->prop); - /* as an optimization we destroy the shape immediately without - putting it in gc_zero_ref_count_list */ - js_free_shape(rt, sh); - - /* fail safe */ - p->shape = NULL; - p->prop = NULL; - - if (unlikely(p->first_weak_ref)) { - reset_weak_ref(rt, p); - } - - finalizer = rt->class_array[p->class_id].finalizer; - if (finalizer) - (*finalizer)(rt, JS_MKPTR(JS_TAG_OBJECT, p)); - - /* fail safe */ - p->class_id = 0; - p->u.opaque = NULL; - p->u.func.var_refs = NULL; - p->u.func.home_object = NULL; - - remove_gc_object(&p->header); - if (rt->gc_phase == JS_GC_PHASE_REMOVE_CYCLES && p->header.ref_count != 0) { - list_add_tail(&p->header.link, &rt->gc_zero_ref_count_list); - } else { - js_free_rt(rt, p); - } -} - -static void free_gc_object(JSRuntime *rt, JSGCObjectHeader *gp) -{ - switch(gp->gc_obj_type) { - case JS_GC_OBJ_TYPE_JS_OBJECT: - free_object(rt, (JSObject *)gp); - break; - case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: - free_function_bytecode(rt, (JSFunctionBytecode *)gp); - break; - case JS_GC_OBJ_TYPE_ASYNC_FUNCTION: - __async_func_free(rt, (JSAsyncFunctionState *)gp); - break; - default: - abort(); - } -} - -static void free_zero_refcount(JSRuntime *rt) -{ - struct list_head *el; - JSGCObjectHeader *p; - - rt->gc_phase = JS_GC_PHASE_DECREF; - for(;;) { - el = rt->gc_zero_ref_count_list.next; - if (el == &rt->gc_zero_ref_count_list) - break; - p = list_entry(el, JSGCObjectHeader, link); - assert(p->ref_count == 0); - free_gc_object(rt, p); - } - rt->gc_phase = JS_GC_PHASE_NONE; -} - -/* called with the ref_count of 'v' reaches zero. */ -void __JS_FreeValueRT(JSRuntime *rt, JSValue v) -{ - uint32_t tag = JS_VALUE_GET_TAG(v); - -#ifdef DUMP_FREE - { - printf("Freeing "); - if (tag == JS_TAG_OBJECT) { - JS_DumpObject(rt, JS_VALUE_GET_OBJ(v)); - } else { - JS_DumpValueShort(rt, v); - printf("\n"); - } - } -#endif - - switch(tag) { - case JS_TAG_STRING: - { - JSString *p = JS_VALUE_GET_STRING(v); - if (p->atom_type) { - JS_FreeAtomStruct(rt, p); - } else { -#ifdef DUMP_LEAKS - list_del(&p->link); -#endif - js_free_rt(rt, p); - } - } - break; - case JS_TAG_OBJECT: - case JS_TAG_FUNCTION_BYTECODE: - { - JSGCObjectHeader *p = JS_VALUE_GET_PTR(v); - if (rt->gc_phase != JS_GC_PHASE_REMOVE_CYCLES) { - list_del(&p->link); - list_add(&p->link, &rt->gc_zero_ref_count_list); - if (rt->gc_phase == JS_GC_PHASE_NONE) { - free_zero_refcount(rt); - } - } - } - break; - case JS_TAG_MODULE: - abort(); /* never freed here */ - break; - case JS_TAG_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: -#endif - { - JSBigFloat *bf = JS_VALUE_GET_PTR(v); - bf_delete(&bf->num); - js_free_rt(rt, bf); - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_DECIMAL: - { - JSBigDecimal *bf = JS_VALUE_GET_PTR(v); - bfdec_delete(&bf->num); - js_free_rt(rt, bf); - } - break; -#endif - case JS_TAG_SYMBOL: - { - JSAtomStruct *p = JS_VALUE_GET_PTR(v); - JS_FreeAtomStruct(rt, p); - } - break; - default: - printf("__JS_FreeValue: unknown tag=%d\n", tag); - abort(); - } -} - -void __JS_FreeValue(JSContext *ctx, JSValue v) -{ - __JS_FreeValueRT(ctx->rt, v); -} - -/* garbage collection */ - -static void add_gc_object(JSRuntime *rt, JSGCObjectHeader *h, - JSGCObjectTypeEnum type) -{ - h->mark = 0; - h->gc_obj_type = type; - list_add_tail(&h->link, &rt->gc_obj_list); -} - -static void remove_gc_object(JSGCObjectHeader *h) -{ - list_del(&h->link); -} - -void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) -{ - if (JS_VALUE_HAS_REF_COUNT(val)) { - switch(JS_VALUE_GET_TAG(val)) { - case JS_TAG_OBJECT: - case JS_TAG_FUNCTION_BYTECODE: - mark_func(rt, JS_VALUE_GET_PTR(val)); - break; - default: - break; - } - } -} - -static void mark_children(JSRuntime *rt, JSGCObjectHeader *gp, - JS_MarkFunc *mark_func) -{ - switch(gp->gc_obj_type) { - case JS_GC_OBJ_TYPE_JS_OBJECT: - { - JSObject *p = (JSObject *)gp; - JSShapeProperty *prs; - JSShape *sh; - int i; - sh = p->shape; - mark_func(rt, &sh->header); - /* mark all the fields */ - prs = get_shape_prop(sh); - for(i = 0; i < sh->prop_count; i++) { - JSProperty *pr = &p->prop[i]; - if (prs->atom != JS_ATOM_NULL) { - if (prs->flags & JS_PROP_TMASK) { - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - if (pr->u.getset.getter) - mark_func(rt, &pr->u.getset.getter->header); - if (pr->u.getset.setter) - mark_func(rt, &pr->u.getset.setter->header); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - /* Note: the tag does not matter - provided it is a GC object */ - mark_func(rt, &pr->u.var_ref->header); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - js_autoinit_mark(rt, pr, mark_func); - } - } else { - JS_MarkValue(rt, pr->u.value, mark_func); - } - } - prs++; - } - - if (p->class_id != JS_CLASS_OBJECT) { - JSClassGCMark *gc_mark; - gc_mark = rt->class_array[p->class_id].gc_mark; - if (gc_mark) - gc_mark(rt, JS_MKPTR(JS_TAG_OBJECT, p), mark_func); - } - } - break; - case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: - /* the template objects can be part of a cycle */ - { - JSFunctionBytecode *b = (JSFunctionBytecode *)gp; - int i; - for(i = 0; i < b->cpool_count; i++) { - JS_MarkValue(rt, b->cpool[i], mark_func); - } - if (b->realm) - mark_func(rt, &b->realm->header); - } - break; - case JS_GC_OBJ_TYPE_VAR_REF: - { - JSVarRef *var_ref = (JSVarRef *)gp; - if (var_ref->is_detached) { - JS_MarkValue(rt, *var_ref->pvalue, mark_func); - } else if (var_ref->async_func) { - mark_func(rt, &var_ref->async_func->header); - } - } - break; - case JS_GC_OBJ_TYPE_ASYNC_FUNCTION: - { - JSAsyncFunctionState *s = (JSAsyncFunctionState *)gp; - JSStackFrame *sf = &s->frame; - JSValue *sp; - - if (!s->is_completed) { - JS_MarkValue(rt, sf->cur_func, mark_func); - JS_MarkValue(rt, s->this_val, mark_func); - /* sf->cur_sp = NULL if the function is running */ - if (sf->cur_sp) { - /* if the function is running, cur_sp is not known so we - cannot mark the stack. Marking the variables is not needed - because a running function cannot be part of a removable - cycle */ - for(sp = sf->arg_buf; sp < sf->cur_sp; sp++) - JS_MarkValue(rt, *sp, mark_func); - } - } - JS_MarkValue(rt, s->resolving_funcs[0], mark_func); - JS_MarkValue(rt, s->resolving_funcs[1], mark_func); - } - break; - case JS_GC_OBJ_TYPE_SHAPE: - { - JSShape *sh = (JSShape *)gp; - if (sh->proto != NULL) { - mark_func(rt, &sh->proto->header); - } - } - break; - case JS_GC_OBJ_TYPE_JS_CONTEXT: - { - JSContext *ctx = (JSContext *)gp; - JS_MarkContext(rt, ctx, mark_func); - } - break; - default: - abort(); - } -} - -static void gc_decref_child(JSRuntime *rt, JSGCObjectHeader *p) -{ - assert(p->ref_count > 0); - p->ref_count--; - if (p->ref_count == 0 && p->mark == 1) { - list_del(&p->link); - list_add_tail(&p->link, &rt->tmp_obj_list); - } -} - -static void gc_decref(JSRuntime *rt) -{ - struct list_head *el, *el1; - JSGCObjectHeader *p; - - init_list_head(&rt->tmp_obj_list); - - /* decrement the refcount of all the children of all the GC - objects and move the GC objects with zero refcount to - tmp_obj_list */ - list_for_each_safe(el, el1, &rt->gc_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - assert(p->mark == 0); - mark_children(rt, p, gc_decref_child); - p->mark = 1; - if (p->ref_count == 0) { - list_del(&p->link); - list_add_tail(&p->link, &rt->tmp_obj_list); - } - } -} - -static void gc_scan_incref_child(JSRuntime *rt, JSGCObjectHeader *p) -{ - p->ref_count++; - if (p->ref_count == 1) { - /* ref_count was 0: remove from tmp_obj_list and add at the - end of gc_obj_list */ - list_del(&p->link); - list_add_tail(&p->link, &rt->gc_obj_list); - p->mark = 0; /* reset the mark for the next GC call */ - } -} - -static void gc_scan_incref_child2(JSRuntime *rt, JSGCObjectHeader *p) -{ - p->ref_count++; -} - -static void gc_scan(JSRuntime *rt) -{ - struct list_head *el; - JSGCObjectHeader *p; - - /* keep the objects with a refcount > 0 and their children. */ - list_for_each(el, &rt->gc_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - assert(p->ref_count > 0); - p->mark = 0; /* reset the mark for the next GC call */ - mark_children(rt, p, gc_scan_incref_child); - } - - /* restore the refcount of the objects to be deleted. */ - list_for_each(el, &rt->tmp_obj_list) { - p = list_entry(el, JSGCObjectHeader, link); - mark_children(rt, p, gc_scan_incref_child2); - } -} - -static void gc_free_cycles(JSRuntime *rt) -{ - struct list_head *el, *el1; - JSGCObjectHeader *p; -#ifdef DUMP_GC_FREE - BOOL header_done = FALSE; -#endif - - rt->gc_phase = JS_GC_PHASE_REMOVE_CYCLES; - - for(;;) { - el = rt->tmp_obj_list.next; - if (el == &rt->tmp_obj_list) - break; - p = list_entry(el, JSGCObjectHeader, link); - /* Only need to free the GC object associated with JS values - or async functions. The rest will be automatically removed - because they must be referenced by them. */ - switch(p->gc_obj_type) { - case JS_GC_OBJ_TYPE_JS_OBJECT: - case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: - case JS_GC_OBJ_TYPE_ASYNC_FUNCTION: -#ifdef DUMP_GC_FREE - if (!header_done) { - printf("Freeing cycles:\n"); - JS_DumpObjectHeader(rt); - header_done = TRUE; - } - JS_DumpGCObject(rt, p); -#endif - free_gc_object(rt, p); - break; - default: - list_del(&p->link); - list_add_tail(&p->link, &rt->gc_zero_ref_count_list); - break; - } - } - rt->gc_phase = JS_GC_PHASE_NONE; - - list_for_each_safe(el, el1, &rt->gc_zero_ref_count_list) { - p = list_entry(el, JSGCObjectHeader, link); - assert(p->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT || - p->gc_obj_type == JS_GC_OBJ_TYPE_FUNCTION_BYTECODE || - p->gc_obj_type == JS_GC_OBJ_TYPE_ASYNC_FUNCTION); - js_free_rt(rt, p); - } - - init_list_head(&rt->gc_zero_ref_count_list); -} - -void JS_RunGC(JSRuntime *rt) -{ - /* decrement the reference of the children of each object. mark = - 1 after this pass. */ - gc_decref(rt); - - /* keep the GC objects with a non zero refcount and their childs */ - gc_scan(rt); - - /* free the GC objects in a cycle */ - gc_free_cycles(rt); -} - -/* Return false if not an object or if the object has already been - freed (zombie objects are visible in finalizers when freeing - cycles). */ -BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj) -{ - JSObject *p; - if (!JS_IsObject(obj)) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - return !p->free_mark; -} - -/* Compute memory used by various object types */ -/* XXX: poor man's approach to handling multiply referenced objects */ -typedef struct JSMemoryUsage_helper { - double memory_used_count; - double str_count; - double str_size; - int64_t js_func_count; - double js_func_size; - int64_t js_func_code_size; - int64_t js_func_pc2line_count; - int64_t js_func_pc2line_size; -} JSMemoryUsage_helper; - -static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp); - -static void compute_jsstring_size(JSString *str, JSMemoryUsage_helper *hp) -{ - if (!str->atom_type) { /* atoms are handled separately */ - double s_ref_count = str->header.ref_count; - hp->str_count += 1 / s_ref_count; - hp->str_size += ((sizeof(*str) + (str->len << str->is_wide_char) + - 1 - str->is_wide_char) / s_ref_count); - } -} - -static void compute_bytecode_size(JSFunctionBytecode *b, JSMemoryUsage_helper *hp) -{ - int memory_used_count, js_func_size, i; - - memory_used_count = 0; - js_func_size = offsetof(JSFunctionBytecode, debug); - if (b->vardefs) { - js_func_size += (b->arg_count + b->var_count) * sizeof(*b->vardefs); - } - if (b->cpool) { - js_func_size += b->cpool_count * sizeof(*b->cpool); - for (i = 0; i < b->cpool_count; i++) { - JSValueConst val = b->cpool[i]; - compute_value_size(val, hp); - } - } - if (b->closure_var) { - js_func_size += b->closure_var_count * sizeof(*b->closure_var); - } - if (!b->read_only_bytecode && b->byte_code_buf) { - hp->js_func_code_size += b->byte_code_len; - } - if (b->has_debug) { - js_func_size += sizeof(*b) - offsetof(JSFunctionBytecode, debug); - if (b->debug.source) { - memory_used_count++; - js_func_size += b->debug.source_len + 1; - } - if (b->debug.pc2line_len) { - memory_used_count++; - hp->js_func_pc2line_count += 1; - hp->js_func_pc2line_size += b->debug.pc2line_len; - } - } - hp->js_func_size += js_func_size; - hp->js_func_count += 1; - hp->memory_used_count += memory_used_count; -} - -static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp) -{ - switch(JS_VALUE_GET_TAG(val)) { - case JS_TAG_STRING: - compute_jsstring_size(JS_VALUE_GET_STRING(val), hp); - break; - case JS_TAG_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - case JS_TAG_BIG_DECIMAL: -#endif - /* should track JSBigFloat usage */ - break; - } -} - -void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s) -{ - struct list_head *el, *el1; - int i; - JSMemoryUsage_helper mem = { 0 }, *hp = &mem; - - memset(s, 0, sizeof(*s)); - s->malloc_count = rt->malloc_state.malloc_count; - s->malloc_size = rt->malloc_state.malloc_size; - s->malloc_limit = rt->malloc_state.malloc_limit; - - s->memory_used_count = 2; /* rt + rt->class_array */ - s->memory_used_size = sizeof(JSRuntime) + sizeof(JSValue) * rt->class_count; - - list_for_each(el, &rt->context_list) { - JSContext *ctx = list_entry(el, JSContext, link); - JSShape *sh = ctx->array_shape; - s->memory_used_count += 2; /* ctx + ctx->class_proto */ - s->memory_used_size += sizeof(JSContext) + - sizeof(JSValue) * rt->class_count; - s->binary_object_count += ctx->binary_object_count; - s->binary_object_size += ctx->binary_object_size; - - /* the hashed shapes are counted separately */ - if (sh && !sh->is_hashed) { - int hash_size = sh->prop_hash_mask + 1; - s->shape_count++; - s->shape_size += get_shape_size(hash_size, sh->prop_size); - } - list_for_each(el1, &ctx->loaded_modules) { - JSModuleDef *m = list_entry(el1, JSModuleDef, link); - s->memory_used_count += 1; - s->memory_used_size += sizeof(*m); - if (m->req_module_entries) { - s->memory_used_count += 1; - s->memory_used_size += m->req_module_entries_count * sizeof(*m->req_module_entries); - } - if (m->export_entries) { - s->memory_used_count += 1; - s->memory_used_size += m->export_entries_count * sizeof(*m->export_entries); - for (i = 0; i < m->export_entries_count; i++) { - JSExportEntry *me = &m->export_entries[i]; - if (me->export_type == JS_EXPORT_TYPE_LOCAL && me->u.local.var_ref) { - /* potential multiple count */ - s->memory_used_count += 1; - compute_value_size(me->u.local.var_ref->value, hp); - } - } - } - if (m->star_export_entries) { - s->memory_used_count += 1; - s->memory_used_size += m->star_export_entries_count * sizeof(*m->star_export_entries); - } - if (m->import_entries) { - s->memory_used_count += 1; - s->memory_used_size += m->import_entries_count * sizeof(*m->import_entries); - } - compute_value_size(m->module_ns, hp); - compute_value_size(m->func_obj, hp); - } - } - - list_for_each(el, &rt->gc_obj_list) { - JSGCObjectHeader *gp = list_entry(el, JSGCObjectHeader, link); - JSObject *p; - JSShape *sh; - JSShapeProperty *prs; - - /* XXX: could count the other GC object types too */ - if (gp->gc_obj_type == JS_GC_OBJ_TYPE_FUNCTION_BYTECODE) { - compute_bytecode_size((JSFunctionBytecode *)gp, hp); - continue; - } else if (gp->gc_obj_type != JS_GC_OBJ_TYPE_JS_OBJECT) { - continue; - } - p = (JSObject *)gp; - sh = p->shape; - s->obj_count++; - if (p->prop) { - s->memory_used_count++; - s->prop_size += sh->prop_size * sizeof(*p->prop); - s->prop_count += sh->prop_count; - prs = get_shape_prop(sh); - for(i = 0; i < sh->prop_count; i++) { - JSProperty *pr = &p->prop[i]; - if (prs->atom != JS_ATOM_NULL && !(prs->flags & JS_PROP_TMASK)) { - compute_value_size(pr->u.value, hp); - } - prs++; - } - } - /* the hashed shapes are counted separately */ - if (!sh->is_hashed) { - int hash_size = sh->prop_hash_mask + 1; - s->shape_count++; - s->shape_size += get_shape_size(hash_size, sh->prop_size); - } - - switch(p->class_id) { - case JS_CLASS_ARRAY: /* u.array | length */ - case JS_CLASS_ARGUMENTS: /* u.array | length */ - s->array_count++; - if (p->fast_array) { - s->fast_array_count++; - if (p->u.array.u.values) { - s->memory_used_count++; - s->memory_used_size += p->u.array.count * - sizeof(*p->u.array.u.values); - s->fast_array_elements += p->u.array.count; - for (i = 0; i < p->u.array.count; i++) { - compute_value_size(p->u.array.u.values[i], hp); - } - } - } - break; - case JS_CLASS_NUMBER: /* u.object_data */ - case JS_CLASS_STRING: /* u.object_data */ - case JS_CLASS_BOOLEAN: /* u.object_data */ - case JS_CLASS_SYMBOL: /* u.object_data */ - case JS_CLASS_DATE: /* u.object_data */ - case JS_CLASS_BIG_INT: /* u.object_data */ -#ifdef CONFIG_BIGNUM - case JS_CLASS_BIG_FLOAT: /* u.object_data */ - case JS_CLASS_BIG_DECIMAL: /* u.object_data */ -#endif - compute_value_size(p->u.object_data, hp); - break; - case JS_CLASS_C_FUNCTION: /* u.cfunc */ - s->c_func_count++; - break; - case JS_CLASS_BYTECODE_FUNCTION: /* u.func */ - { - JSFunctionBytecode *b = p->u.func.function_bytecode; - JSVarRef **var_refs = p->u.func.var_refs; - /* home_object: object will be accounted for in list scan */ - if (var_refs) { - s->memory_used_count++; - s->js_func_size += b->closure_var_count * sizeof(*var_refs); - for (i = 0; i < b->closure_var_count; i++) { - if (var_refs[i]) { - double ref_count = var_refs[i]->header.ref_count; - s->memory_used_count += 1 / ref_count; - s->js_func_size += sizeof(*var_refs[i]) / ref_count; - /* handle non object closed values */ - if (var_refs[i]->pvalue == &var_refs[i]->value) { - /* potential multiple count */ - compute_value_size(var_refs[i]->value, hp); - } - } - } - } - } - break; - case JS_CLASS_BOUND_FUNCTION: /* u.bound_function */ - { - JSBoundFunction *bf = p->u.bound_function; - /* func_obj and this_val are objects */ - for (i = 0; i < bf->argc; i++) { - compute_value_size(bf->argv[i], hp); - } - s->memory_used_count += 1; - s->memory_used_size += sizeof(*bf) + bf->argc * sizeof(*bf->argv); - } - break; - case JS_CLASS_C_FUNCTION_DATA: /* u.c_function_data_record */ - { - JSCFunctionDataRecord *fd = p->u.c_function_data_record; - if (fd) { - for (i = 0; i < fd->data_len; i++) { - compute_value_size(fd->data[i], hp); - } - s->memory_used_count += 1; - s->memory_used_size += sizeof(*fd) + fd->data_len * sizeof(*fd->data); - } - } - break; - case JS_CLASS_REGEXP: /* u.regexp */ - compute_jsstring_size(p->u.regexp.pattern, hp); - compute_jsstring_size(p->u.regexp.bytecode, hp); - break; - - case JS_CLASS_FOR_IN_ITERATOR: /* u.for_in_iterator */ - { - JSForInIterator *it = p->u.for_in_iterator; - if (it) { - compute_value_size(it->obj, hp); - s->memory_used_count += 1; - s->memory_used_size += sizeof(*it); - } - } - break; - case JS_CLASS_ARRAY_BUFFER: /* u.array_buffer */ - case JS_CLASS_SHARED_ARRAY_BUFFER: /* u.array_buffer */ - { - JSArrayBuffer *abuf = p->u.array_buffer; - if (abuf) { - s->memory_used_count += 1; - s->memory_used_size += sizeof(*abuf); - if (abuf->data) { - s->memory_used_count += 1; - s->memory_used_size += abuf->byte_length; - } - } - } - break; - case JS_CLASS_GENERATOR: /* u.generator_data */ - case JS_CLASS_UINT8C_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_INT8_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_UINT8_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_INT16_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_UINT16_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_INT32_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_UINT32_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_BIG_INT64_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_BIG_UINT64_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_FLOAT32_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_FLOAT64_ARRAY: /* u.typed_array / u.array */ - case JS_CLASS_DATAVIEW: /* u.typed_array */ -#ifdef CONFIG_BIGNUM - case JS_CLASS_FLOAT_ENV: /* u.float_env */ -#endif - case JS_CLASS_MAP: /* u.map_state */ - case JS_CLASS_SET: /* u.map_state */ - case JS_CLASS_WEAKMAP: /* u.map_state */ - case JS_CLASS_WEAKSET: /* u.map_state */ - case JS_CLASS_MAP_ITERATOR: /* u.map_iterator_data */ - case JS_CLASS_SET_ITERATOR: /* u.map_iterator_data */ - case JS_CLASS_ARRAY_ITERATOR: /* u.array_iterator_data */ - case JS_CLASS_STRING_ITERATOR: /* u.array_iterator_data */ - case JS_CLASS_PROXY: /* u.proxy_data */ - case JS_CLASS_PROMISE: /* u.promise_data */ - case JS_CLASS_PROMISE_RESOLVE_FUNCTION: /* u.promise_function_data */ - case JS_CLASS_PROMISE_REJECT_FUNCTION: /* u.promise_function_data */ - case JS_CLASS_ASYNC_FUNCTION_RESOLVE: /* u.async_function_data */ - case JS_CLASS_ASYNC_FUNCTION_REJECT: /* u.async_function_data */ - case JS_CLASS_ASYNC_FROM_SYNC_ITERATOR: /* u.async_from_sync_iterator_data */ - case JS_CLASS_ASYNC_GENERATOR: /* u.async_generator_data */ - /* TODO */ - default: - /* XXX: class definition should have an opaque block size */ - if (p->u.opaque) { - s->memory_used_count += 1; - } - break; - } - } - s->obj_size += s->obj_count * sizeof(JSObject); - - /* hashed shapes */ - s->memory_used_count++; /* rt->shape_hash */ - s->memory_used_size += sizeof(rt->shape_hash[0]) * rt->shape_hash_size; - for(i = 0; i < rt->shape_hash_size; i++) { - JSShape *sh; - for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) { - int hash_size = sh->prop_hash_mask + 1; - s->shape_count++; - s->shape_size += get_shape_size(hash_size, sh->prop_size); - } - } - - /* atoms */ - s->memory_used_count += 2; /* rt->atom_array, rt->atom_hash */ - s->atom_count = rt->atom_count; - s->atom_size = sizeof(rt->atom_array[0]) * rt->atom_size + - sizeof(rt->atom_hash[0]) * rt->atom_hash_size; - for(i = 0; i < rt->atom_size; i++) { - JSAtomStruct *p = rt->atom_array[i]; - if (!atom_is_free(p)) { - s->atom_size += (sizeof(*p) + (p->len << p->is_wide_char) + - 1 - p->is_wide_char); - } - } - s->str_count = round(mem.str_count); - s->str_size = round(mem.str_size); - s->js_func_count = mem.js_func_count; - s->js_func_size = round(mem.js_func_size); - s->js_func_code_size = mem.js_func_code_size; - s->js_func_pc2line_count = mem.js_func_pc2line_count; - s->js_func_pc2line_size = mem.js_func_pc2line_size; - s->memory_used_count += round(mem.memory_used_count) + - s->atom_count + s->str_count + - s->obj_count + s->shape_count + - s->js_func_count + s->js_func_pc2line_count; - s->memory_used_size += s->atom_size + s->str_size + - s->obj_size + s->prop_size + s->shape_size + - s->js_func_size + s->js_func_code_size + s->js_func_pc2line_size; -} - -void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt) -{ - fprintf(fp, "QuickJS memory usage -- " -#ifdef CONFIG_BIGNUM - "BigNum " -#endif - CONFIG_VERSION " version, %d-bit, malloc limit: %"PRId64"\n\n", - (int)sizeof(void *) * 8, (int64_t)(ssize_t)s->malloc_limit); -#if 1 - if (rt) { - static const struct { - const char *name; - size_t size; - } object_types[] = { - { "JSRuntime", sizeof(JSRuntime) }, - { "JSContext", sizeof(JSContext) }, - { "JSObject", sizeof(JSObject) }, - { "JSString", sizeof(JSString) }, - { "JSFunctionBytecode", sizeof(JSFunctionBytecode) }, - }; - int i, usage_size_ok = 0; - for(i = 0; i < countof(object_types); i++) { - unsigned int size = object_types[i].size; - void *p = js_malloc_rt(rt, size); - if (p) { - unsigned int size1 = js_malloc_usable_size_rt(rt, p); - if (size1 >= size) { - usage_size_ok = 1; - fprintf(fp, " %3u + %-2u %s\n", - size, size1 - size, object_types[i].name); - } - js_free_rt(rt, p); - } - } - if (!usage_size_ok) { - fprintf(fp, " malloc_usable_size unavailable\n"); - } - { - int obj_classes[JS_CLASS_INIT_COUNT + 1] = { 0 }; - int class_id; - struct list_head *el; - list_for_each(el, &rt->gc_obj_list) { - JSGCObjectHeader *gp = list_entry(el, JSGCObjectHeader, link); - JSObject *p; - if (gp->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) { - p = (JSObject *)gp; - obj_classes[min_uint32(p->class_id, JS_CLASS_INIT_COUNT)]++; - } - } - fprintf(fp, "\n" "JSObject classes\n"); - if (obj_classes[0]) - fprintf(fp, " %5d %2.0d %s\n", obj_classes[0], 0, "none"); - for (class_id = 1; class_id < JS_CLASS_INIT_COUNT; class_id++) { - if (obj_classes[class_id] && class_id < rt->class_count) { - char buf[ATOM_GET_STR_BUF_SIZE]; - fprintf(fp, " %5d %2.0d %s\n", obj_classes[class_id], class_id, - JS_AtomGetStrRT(rt, buf, sizeof(buf), rt->class_array[class_id].class_name)); - } - } - if (obj_classes[JS_CLASS_INIT_COUNT]) - fprintf(fp, " %5d %2.0d %s\n", obj_classes[JS_CLASS_INIT_COUNT], 0, "other"); - } - fprintf(fp, "\n"); - } -#endif - fprintf(fp, "%-20s %8s %8s\n", "NAME", "COUNT", "SIZE"); - - if (s->malloc_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per block)\n", - "memory allocated", s->malloc_count, s->malloc_size, - (double)s->malloc_size / s->malloc_count); - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%d overhead, %0.1f average slack)\n", - "memory used", s->memory_used_count, s->memory_used_size, - MALLOC_OVERHEAD, ((double)(s->malloc_size - s->memory_used_size) / - s->memory_used_count)); - } - if (s->atom_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per atom)\n", - "atoms", s->atom_count, s->atom_size, - (double)s->atom_size / s->atom_count); - } - if (s->str_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per string)\n", - "strings", s->str_count, s->str_size, - (double)s->str_size / s->str_count); - } - if (s->obj_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per object)\n", - "objects", s->obj_count, s->obj_size, - (double)s->obj_size / s->obj_count); - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per object)\n", - " properties", s->prop_count, s->prop_size, - (double)s->prop_count / s->obj_count); - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per shape)\n", - " shapes", s->shape_count, s->shape_size, - (double)s->shape_size / s->shape_count); - } - if (s->js_func_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n", - "bytecode functions", s->js_func_count, s->js_func_size); - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per function)\n", - " bytecode", s->js_func_count, s->js_func_code_size, - (double)s->js_func_code_size / s->js_func_count); - if (s->js_func_pc2line_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per function)\n", - " pc2line", s->js_func_pc2line_count, - s->js_func_pc2line_size, - (double)s->js_func_pc2line_size / s->js_func_pc2line_count); - } - } - if (s->c_func_count) { - fprintf(fp, "%-20s %8"PRId64"\n", "C functions", s->c_func_count); - } - if (s->array_count) { - fprintf(fp, "%-20s %8"PRId64"\n", "arrays", s->array_count); - if (s->fast_array_count) { - fprintf(fp, "%-20s %8"PRId64"\n", " fast arrays", s->fast_array_count); - fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per fast array)\n", - " elements", s->fast_array_elements, - s->fast_array_elements * (int)sizeof(JSValue), - (double)s->fast_array_elements / s->fast_array_count); - } - } - if (s->binary_object_count) { - fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n", - "binary objects", s->binary_object_count, s->binary_object_size); - } -} - -JSValue JS_GetGlobalObject(JSContext *ctx) -{ - return JS_DupValue(ctx, ctx->global_obj); -} - -/* WARNING: obj is freed */ -JSValue JS_Throw(JSContext *ctx, JSValue obj) -{ - JSRuntime *rt = ctx->rt; - JS_FreeValue(ctx, rt->current_exception); - rt->current_exception = obj; - return JS_EXCEPTION; -} - -/* return the pending exception (cannot be called twice). */ -JSValue JS_GetException(JSContext *ctx) -{ - JSValue val; - JSRuntime *rt = ctx->rt; - val = rt->current_exception; - rt->current_exception = JS_NULL; - return val; -} - -static void dbuf_put_leb128(DynBuf *s, uint32_t v) -{ - uint32_t a; - for(;;) { - a = v & 0x7f; - v >>= 7; - if (v != 0) { - dbuf_putc(s, a | 0x80); - } else { - dbuf_putc(s, a); - break; - } - } -} - -static void dbuf_put_sleb128(DynBuf *s, int32_t v1) -{ - uint32_t v = v1; - dbuf_put_leb128(s, (2 * v) ^ -(v >> 31)); -} - -static int get_leb128(uint32_t *pval, const uint8_t *buf, - const uint8_t *buf_end) -{ - const uint8_t *ptr = buf; - uint32_t v, a, i; - v = 0; - for(i = 0; i < 5; i++) { - if (unlikely(ptr >= buf_end)) - break; - a = *ptr++; - v |= (a & 0x7f) << (i * 7); - if (!(a & 0x80)) { - *pval = v; - return ptr - buf; - } - } - *pval = 0; - return -1; -} - -static int get_sleb128(int32_t *pval, const uint8_t *buf, - const uint8_t *buf_end) -{ - int ret; - uint32_t val; - ret = get_leb128(&val, buf, buf_end); - if (ret < 0) { - *pval = 0; - return -1; - } - *pval = (val >> 1) ^ -(val & 1); - return ret; -} - -static int find_line_num(JSContext *ctx, JSFunctionBytecode *b, - uint32_t pc_value) -{ - const uint8_t *p_end, *p; - int new_line_num, line_num, pc, v, ret; - unsigned int op; - - if (!b->has_debug || !b->debug.pc2line_buf) { - /* function was stripped */ - return -1; - } - - p = b->debug.pc2line_buf; - p_end = p + b->debug.pc2line_len; - pc = 0; - line_num = b->debug.line_num; - while (p < p_end) { - op = *p++; - if (op == 0) { - uint32_t val; - ret = get_leb128(&val, p, p_end); - if (ret < 0) - goto fail; - pc += val; - p += ret; - ret = get_sleb128(&v, p, p_end); - if (ret < 0) { - fail: - /* should never happen */ - return b->debug.line_num; - } - p += ret; - new_line_num = line_num + v; - } else { - op -= PC2LINE_OP_FIRST; - pc += (op / PC2LINE_RANGE); - new_line_num = line_num + (op % PC2LINE_RANGE) + PC2LINE_BASE; - } - if (pc_value < pc) - return line_num; - line_num = new_line_num; - } - return line_num; -} - -/* in order to avoid executing arbitrary code during the stack trace - generation, we only look at simple 'name' properties containing a - string. */ -static const char *get_func_name(JSContext *ctx, JSValueConst func) -{ - JSProperty *pr; - JSShapeProperty *prs; - JSValueConst val; - - if (JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT) - return NULL; - prs = find_own_property(&pr, JS_VALUE_GET_OBJ(func), JS_ATOM_name); - if (!prs) - return NULL; - if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL) - return NULL; - val = pr->u.value; - if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING) - return NULL; - return JS_ToCString(ctx, val); -} - -#define JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL (1 << 0) -/* only taken into account if filename is provided */ -#define JS_BACKTRACE_FLAG_SINGLE_LEVEL (1 << 1) - -/* if filename != NULL, an additional level is added with the filename - and line number information (used for parse error). */ -static void build_backtrace(JSContext *ctx, JSValueConst error_obj, - const char *filename, int line_num, - int backtrace_flags) -{ - JSStackFrame *sf; - JSValue str; - DynBuf dbuf; - const char *func_name_str; - const char *str1; - JSObject *p; - BOOL backtrace_barrier; - - js_dbuf_init(ctx, &dbuf); - if (filename) { - dbuf_printf(&dbuf, " at %s", filename); - if (line_num != -1) - dbuf_printf(&dbuf, ":%d", line_num); - dbuf_putc(&dbuf, '\n'); - str = JS_NewString(ctx, filename); - JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_fileName, str, - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_lineNumber, JS_NewInt32(ctx, line_num), - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - if (backtrace_flags & JS_BACKTRACE_FLAG_SINGLE_LEVEL) - goto done; - } - for(sf = ctx->rt->current_stack_frame; sf != NULL; sf = sf->prev_frame) { - if (backtrace_flags & JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL) { - backtrace_flags &= ~JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL; - continue; - } - func_name_str = get_func_name(ctx, sf->cur_func); - if (!func_name_str || func_name_str[0] == '\0') - str1 = ""; - else - str1 = func_name_str; - dbuf_printf(&dbuf, " at %s", str1); - JS_FreeCString(ctx, func_name_str); - - p = JS_VALUE_GET_OBJ(sf->cur_func); - backtrace_barrier = FALSE; - if (js_class_has_bytecode(p->class_id)) { - JSFunctionBytecode *b; - const char *atom_str; - int line_num1; - - b = p->u.func.function_bytecode; - backtrace_barrier = b->backtrace_barrier; - if (b->has_debug) { - line_num1 = find_line_num(ctx, b, - sf->cur_pc - b->byte_code_buf - 1); - atom_str = JS_AtomToCString(ctx, b->debug.filename); - dbuf_printf(&dbuf, " (%s", - atom_str ? atom_str : ""); - JS_FreeCString(ctx, atom_str); - if (line_num1 != -1) - dbuf_printf(&dbuf, ":%d", line_num1); - dbuf_putc(&dbuf, ')'); - } - } else { - dbuf_printf(&dbuf, " (native)"); - } - dbuf_putc(&dbuf, '\n'); - /* stop backtrace if JS_EVAL_FLAG_BACKTRACE_BARRIER was used */ - if (backtrace_barrier) - break; - } - done: - dbuf_putc(&dbuf, '\0'); - if (dbuf_error(&dbuf)) - str = JS_NULL; - else - str = JS_NewString(ctx, (char *)dbuf.buf); - dbuf_free(&dbuf); - JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_stack, str, - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); -} - -/* Note: it is important that no exception is returned by this function */ -static BOOL is_backtrace_needed(JSContext *ctx, JSValueConst obj) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - if (p->class_id != JS_CLASS_ERROR) - return FALSE; - if (find_own_property1(p, JS_ATOM_stack)) - return FALSE; - return TRUE; -} - -JSValue JS_NewError(JSContext *ctx) -{ - return JS_NewObjectClass(ctx, JS_CLASS_ERROR); -} - -static JSValue JS_ThrowError2(JSContext *ctx, JSErrorEnum error_num, - const char *fmt, va_list ap, BOOL add_backtrace) -{ - char buf[256]; - JSValue obj, ret; - - vsnprintf(buf, sizeof(buf), fmt, ap); - obj = JS_NewObjectProtoClass(ctx, ctx->native_error_proto[error_num], - JS_CLASS_ERROR); - if (unlikely(JS_IsException(obj))) { - /* out of memory: throw JS_NULL to avoid recursing */ - obj = JS_NULL; - } else { - JS_DefinePropertyValue(ctx, obj, JS_ATOM_message, - JS_NewString(ctx, buf), - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - } - if (add_backtrace) { - build_backtrace(ctx, obj, NULL, 0, 0); - } - ret = JS_Throw(ctx, obj); - return ret; -} - -static JSValue JS_ThrowError(JSContext *ctx, JSErrorEnum error_num, - const char *fmt, va_list ap) -{ - JSRuntime *rt = ctx->rt; - JSStackFrame *sf; - BOOL add_backtrace; - - /* the backtrace is added later if called from a bytecode function */ - sf = rt->current_stack_frame; - add_backtrace = !rt->in_out_of_memory && - (!sf || (JS_GetFunctionBytecode(sf->cur_func) == NULL)); - return JS_ThrowError2(ctx, error_num, fmt, ap, add_backtrace); -} - -JSValue __attribute__((format(printf, 2, 3))) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...) -{ - JSValue val; - va_list ap; - - va_start(ap, fmt); - val = JS_ThrowError(ctx, JS_SYNTAX_ERROR, fmt, ap); - va_end(ap); - return val; -} - -JSValue __attribute__((format(printf, 2, 3))) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...) -{ - JSValue val; - va_list ap; - - va_start(ap, fmt); - val = JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap); - va_end(ap); - return val; -} - -static int __attribute__((format(printf, 3, 4))) JS_ThrowTypeErrorOrFalse(JSContext *ctx, int flags, const char *fmt, ...) -{ - va_list ap; - - if ((flags & JS_PROP_THROW) || - ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { - va_start(ap, fmt); - JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap); - va_end(ap); - return -1; - } else { - return FALSE; - } -} - -/* never use it directly */ -static JSValue __attribute__((format(printf, 3, 4))) __JS_ThrowTypeErrorAtom(JSContext *ctx, JSAtom atom, const char *fmt, ...) -{ - char buf[ATOM_GET_STR_BUF_SIZE]; - return JS_ThrowTypeError(ctx, fmt, - JS_AtomGetStr(ctx, buf, sizeof(buf), atom)); -} - -/* never use it directly */ -static JSValue __attribute__((format(printf, 3, 4))) __JS_ThrowSyntaxErrorAtom(JSContext *ctx, JSAtom atom, const char *fmt, ...) -{ - char buf[ATOM_GET_STR_BUF_SIZE]; - return JS_ThrowSyntaxError(ctx, fmt, - JS_AtomGetStr(ctx, buf, sizeof(buf), atom)); -} - -/* %s is replaced by 'atom'. The macro is used so that gcc can check - the format string. */ -#define JS_ThrowTypeErrorAtom(ctx, fmt, atom) __JS_ThrowTypeErrorAtom(ctx, atom, fmt, "") -#define JS_ThrowSyntaxErrorAtom(ctx, fmt, atom) __JS_ThrowSyntaxErrorAtom(ctx, atom, fmt, "") - -static int JS_ThrowTypeErrorReadOnly(JSContext *ctx, int flags, JSAtom atom) -{ - if ((flags & JS_PROP_THROW) || - ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { - JS_ThrowTypeErrorAtom(ctx, "'%s' is read-only", atom); - return -1; - } else { - return FALSE; - } -} - -JSValue __attribute__((format(printf, 2, 3))) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...) -{ - JSValue val; - va_list ap; - - va_start(ap, fmt); - val = JS_ThrowError(ctx, JS_REFERENCE_ERROR, fmt, ap); - va_end(ap); - return val; -} - -JSValue __attribute__((format(printf, 2, 3))) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...) -{ - JSValue val; - va_list ap; - - va_start(ap, fmt); - val = JS_ThrowError(ctx, JS_RANGE_ERROR, fmt, ap); - va_end(ap); - return val; -} - -JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...) -{ - JSValue val; - va_list ap; - - va_start(ap, fmt); - val = JS_ThrowError(ctx, JS_INTERNAL_ERROR, fmt, ap); - va_end(ap); - return val; -} - -JSValue JS_ThrowOutOfMemory(JSContext *ctx) -{ - JSRuntime *rt = ctx->rt; - if (!rt->in_out_of_memory) { - rt->in_out_of_memory = TRUE; - JS_ThrowInternalError(ctx, "out of memory"); - rt->in_out_of_memory = FALSE; - } - return JS_EXCEPTION; -} - -static JSValue JS_ThrowStackOverflow(JSContext *ctx) -{ - return JS_ThrowInternalError(ctx, "stack overflow"); -} - -static JSValue JS_ThrowTypeErrorNotAnObject(JSContext *ctx) -{ - return JS_ThrowTypeError(ctx, "not an object"); -} - -static JSValue JS_ThrowTypeErrorNotASymbol(JSContext *ctx) -{ - return JS_ThrowTypeError(ctx, "not a symbol"); -} - -static JSValue JS_ThrowReferenceErrorNotDefined(JSContext *ctx, JSAtom name) -{ - char buf[ATOM_GET_STR_BUF_SIZE]; - return JS_ThrowReferenceError(ctx, "'%s' is not defined", - JS_AtomGetStr(ctx, buf, sizeof(buf), name)); -} - -static JSValue JS_ThrowReferenceErrorUninitialized(JSContext *ctx, JSAtom name) -{ - char buf[ATOM_GET_STR_BUF_SIZE]; - return JS_ThrowReferenceError(ctx, "%s is not initialized", - name == JS_ATOM_NULL ? "lexical variable" : - JS_AtomGetStr(ctx, buf, sizeof(buf), name)); -} - -static JSValue JS_ThrowReferenceErrorUninitialized2(JSContext *ctx, - JSFunctionBytecode *b, - int idx, BOOL is_ref) -{ - JSAtom atom = JS_ATOM_NULL; - if (is_ref) { - atom = b->closure_var[idx].var_name; - } else { - /* not present if the function is stripped and contains no eval() */ - if (b->vardefs) - atom = b->vardefs[b->arg_count + idx].var_name; - } - return JS_ThrowReferenceErrorUninitialized(ctx, atom); -} - -static JSValue JS_ThrowTypeErrorInvalidClass(JSContext *ctx, int class_id) -{ - JSRuntime *rt = ctx->rt; - JSAtom name; - name = rt->class_array[class_id].class_name; - return JS_ThrowTypeErrorAtom(ctx, "%s object expected", name); -} - -static no_inline __exception int __js_poll_interrupts(JSContext *ctx) -{ - JSRuntime *rt = ctx->rt; - ctx->interrupt_counter = JS_INTERRUPT_COUNTER_INIT; - if (rt->interrupt_handler) { - if (rt->interrupt_handler(rt, rt->interrupt_opaque)) { - /* XXX: should set a specific flag to avoid catching */ - JS_ThrowInternalError(ctx, "interrupted"); - JS_SetUncatchableError(ctx, ctx->rt->current_exception, TRUE); - return -1; - } - } - return 0; -} - -static inline __exception int js_poll_interrupts(JSContext *ctx) -{ - if (unlikely(--ctx->interrupt_counter <= 0)) { - return __js_poll_interrupts(ctx); - } else { - return 0; - } -} - -/* return -1 (exception) or TRUE/FALSE */ -static int JS_SetPrototypeInternal(JSContext *ctx, JSValueConst obj, - JSValueConst proto_val, - BOOL throw_flag) -{ - JSObject *proto, *p, *p1; - JSShape *sh; - - if (throw_flag) { - if (JS_VALUE_GET_TAG(obj) == JS_TAG_NULL || - JS_VALUE_GET_TAG(obj) == JS_TAG_UNDEFINED) - goto not_obj; - } else { - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) - goto not_obj; - } - p = JS_VALUE_GET_OBJ(obj); - if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) { - if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_NULL) { - not_obj: - JS_ThrowTypeErrorNotAnObject(ctx); - return -1; - } - proto = NULL; - } else { - proto = JS_VALUE_GET_OBJ(proto_val); - } - - if (throw_flag && JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) - return TRUE; - - if (unlikely(p->class_id == JS_CLASS_PROXY)) - return js_proxy_setPrototypeOf(ctx, obj, proto_val, throw_flag); - sh = p->shape; - if (sh->proto == proto) - return TRUE; - if (!p->extensible) { - if (throw_flag) { - JS_ThrowTypeError(ctx, "object is not extensible"); - return -1; - } else { - return FALSE; - } - } - if (proto) { - /* check if there is a cycle */ - p1 = proto; - do { - if (p1 == p) { - if (throw_flag) { - JS_ThrowTypeError(ctx, "circular prototype chain"); - return -1; - } else { - return FALSE; - } - } - /* Note: for Proxy objects, proto is NULL */ - p1 = p1->shape->proto; - } while (p1 != NULL); - JS_DupValue(ctx, proto_val); - } - - if (js_shape_prepare_update(ctx, p, NULL)) - return -1; - sh = p->shape; - if (sh->proto) - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto)); - sh->proto = proto; - return TRUE; -} - -/* return -1 (exception) or TRUE/FALSE */ -int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val) -{ - return JS_SetPrototypeInternal(ctx, obj, proto_val, TRUE); -} - -/* Only works for primitive types, otherwise return JS_NULL. */ -static JSValueConst JS_GetPrototypePrimitive(JSContext *ctx, JSValueConst val) -{ - switch(JS_VALUE_GET_NORM_TAG(val)) { - case JS_TAG_BIG_INT: - val = ctx->class_proto[JS_CLASS_BIG_INT]; - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - val = ctx->class_proto[JS_CLASS_BIG_FLOAT]; - break; - case JS_TAG_BIG_DECIMAL: - val = ctx->class_proto[JS_CLASS_BIG_DECIMAL]; - break; -#endif - case JS_TAG_INT: - case JS_TAG_FLOAT64: - val = ctx->class_proto[JS_CLASS_NUMBER]; - break; - case JS_TAG_BOOL: - val = ctx->class_proto[JS_CLASS_BOOLEAN]; - break; - case JS_TAG_STRING: - val = ctx->class_proto[JS_CLASS_STRING]; - break; - case JS_TAG_SYMBOL: - val = ctx->class_proto[JS_CLASS_SYMBOL]; - break; - case JS_TAG_OBJECT: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - default: - val = JS_NULL; - break; - } - return val; -} - -/* Return an Object, JS_NULL or JS_EXCEPTION in case of Proxy object. */ -JSValue JS_GetPrototype(JSContext *ctx, JSValueConst obj) -{ - JSValue val; - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - JSObject *p; - p = JS_VALUE_GET_OBJ(obj); - if (unlikely(p->class_id == JS_CLASS_PROXY)) { - val = js_proxy_getPrototypeOf(ctx, obj); - } else { - p = p->shape->proto; - if (!p) - val = JS_NULL; - else - val = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - } - } else { - val = JS_DupValue(ctx, JS_GetPrototypePrimitive(ctx, obj)); - } - return val; -} - -static JSValue JS_GetPrototypeFree(JSContext *ctx, JSValue obj) -{ - JSValue obj1; - obj1 = JS_GetPrototype(ctx, obj); - JS_FreeValue(ctx, obj); - return obj1; -} - -/* return TRUE, FALSE or (-1) in case of exception */ -static int JS_OrdinaryIsInstanceOf(JSContext *ctx, JSValueConst val, - JSValueConst obj) -{ - JSValue obj_proto; - JSObject *proto; - const JSObject *p, *proto1; - BOOL ret; - - if (!JS_IsFunction(ctx, obj)) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - if (p->class_id == JS_CLASS_BOUND_FUNCTION) { - JSBoundFunction *s = p->u.bound_function; - return JS_IsInstanceOf(ctx, val, s->func_obj); - } - - /* Only explicitly boxed values are instances of constructors */ - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return FALSE; - obj_proto = JS_GetProperty(ctx, obj, JS_ATOM_prototype); - if (JS_VALUE_GET_TAG(obj_proto) != JS_TAG_OBJECT) { - if (!JS_IsException(obj_proto)) - JS_ThrowTypeError(ctx, "operand 'prototype' property is not an object"); - ret = -1; - goto done; - } - proto = JS_VALUE_GET_OBJ(obj_proto); - p = JS_VALUE_GET_OBJ(val); - for(;;) { - proto1 = p->shape->proto; - if (!proto1) { - /* slow case if proxy in the prototype chain */ - if (unlikely(p->class_id == JS_CLASS_PROXY)) { - JSValue obj1; - obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, (JSObject *)p)); - for(;;) { - obj1 = JS_GetPrototypeFree(ctx, obj1); - if (JS_IsException(obj1)) { - ret = -1; - break; - } - if (JS_IsNull(obj1)) { - ret = FALSE; - break; - } - if (proto == JS_VALUE_GET_OBJ(obj1)) { - JS_FreeValue(ctx, obj1); - ret = TRUE; - break; - } - /* must check for timeout to avoid infinite loop */ - if (js_poll_interrupts(ctx)) { - JS_FreeValue(ctx, obj1); - ret = -1; - break; - } - } - } else { - ret = FALSE; - } - break; - } - p = proto1; - if (proto == p) { - ret = TRUE; - break; - } - } -done: - JS_FreeValue(ctx, obj_proto); - return ret; -} - -/* return TRUE, FALSE or (-1) in case of exception */ -int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj) -{ - JSValue method; - - if (!JS_IsObject(obj)) - goto fail; - method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_hasInstance); - if (JS_IsException(method)) - return -1; - if (!JS_IsNull(method) && !JS_IsUndefined(method)) { - JSValue ret; - ret = JS_CallFree(ctx, method, obj, 1, &val); - return JS_ToBoolFree(ctx, ret); - } - - /* legacy case */ - if (!JS_IsFunction(ctx, obj)) { - fail: - JS_ThrowTypeError(ctx, "invalid 'instanceof' right operand"); - return -1; - } - return JS_OrdinaryIsInstanceOf(ctx, val, obj); -} - -/* return the value associated to the autoinit property or an exception */ -typedef JSValue JSAutoInitFunc(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque); - -static JSAutoInitFunc *js_autoinit_func_table[] = { - js_instantiate_prototype, /* JS_AUTOINIT_ID_PROTOTYPE */ - js_module_ns_autoinit, /* JS_AUTOINIT_ID_MODULE_NS */ - JS_InstantiateFunctionListItem2, /* JS_AUTOINIT_ID_PROP */ -}; - -/* warning: 'prs' is reallocated after it */ -static int JS_AutoInitProperty(JSContext *ctx, JSObject *p, JSAtom prop, - JSProperty *pr, JSShapeProperty *prs) -{ - JSValue val; - JSContext *realm; - JSAutoInitFunc *func; - - if (js_shape_prepare_update(ctx, p, &prs)) - return -1; - - realm = js_autoinit_get_realm(pr); - func = js_autoinit_func_table[js_autoinit_get_id(pr)]; - /* 'func' shall not modify the object properties 'pr' */ - val = func(realm, p, prop, pr->u.init.opaque); - js_autoinit_free(ctx->rt, pr); - prs->flags &= ~JS_PROP_TMASK; - pr->u.value = JS_UNDEFINED; - if (JS_IsException(val)) - return -1; - pr->u.value = val; - return 0; -} - -JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj, - JSAtom prop, JSValueConst this_obj, - BOOL throw_ref_error) -{ - JSObject *p; - JSProperty *pr; - JSShapeProperty *prs; - uint32_t tag; - - tag = JS_VALUE_GET_TAG(obj); - if (unlikely(tag != JS_TAG_OBJECT)) { - switch(tag) { - case JS_TAG_NULL: - return JS_ThrowTypeErrorAtom(ctx, "cannot read property '%s' of null", prop); - case JS_TAG_UNDEFINED: - return JS_ThrowTypeErrorAtom(ctx, "cannot read property '%s' of undefined", prop); - case JS_TAG_EXCEPTION: - return JS_EXCEPTION; - case JS_TAG_STRING: - { - JSString *p1 = JS_VALUE_GET_STRING(obj); - if (__JS_AtomIsTaggedInt(prop)) { - uint32_t idx, ch; - idx = __JS_AtomToUInt32(prop); - if (idx < p1->len) { - if (p1->is_wide_char) - ch = p1->u.str16[idx]; - else - ch = p1->u.str8[idx]; - return js_new_string_char(ctx, ch); - } - } else if (prop == JS_ATOM_length) { - return JS_NewInt32(ctx, p1->len); - } - } - break; - default: - break; - } - /* cannot raise an exception */ - p = JS_VALUE_GET_OBJ(JS_GetPrototypePrimitive(ctx, obj)); - if (!p) - return JS_UNDEFINED; - } else { - p = JS_VALUE_GET_OBJ(obj); - } - - for(;;) { - prs = find_own_property(&pr, p, prop); - if (prs) { - /* found */ - if (unlikely(prs->flags & JS_PROP_TMASK)) { - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - if (unlikely(!pr->u.getset.getter)) { - return JS_UNDEFINED; - } else { - JSValue func = JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter); - /* Note: the field could be removed in the getter */ - func = JS_DupValue(ctx, func); - return JS_CallFree(ctx, func, this_obj, 0, NULL); - } - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - JSValue val = *pr->u.var_ref->pvalue; - if (unlikely(JS_IsUninitialized(val))) - return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return JS_DupValue(ctx, val); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - /* Instantiate property and retry */ - if (JS_AutoInitProperty(ctx, p, prop, pr, prs)) - return JS_EXCEPTION; - continue; - } - } else { - return JS_DupValue(ctx, pr->u.value); - } - } - if (unlikely(p->is_exotic)) { - /* exotic behaviors */ - if (p->fast_array) { - if (__JS_AtomIsTaggedInt(prop)) { - uint32_t idx = __JS_AtomToUInt32(prop); - if (idx < p->u.array.count) { - /* we avoid duplicating the code */ - return JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx); - } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && - p->class_id <= JS_CLASS_FLOAT64_ARRAY) { - return JS_UNDEFINED; - } - } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && - p->class_id <= JS_CLASS_FLOAT64_ARRAY) { - int ret; - ret = JS_AtomIsNumericIndex(ctx, prop); - if (ret != 0) { - if (ret < 0) - return JS_EXCEPTION; - return JS_UNDEFINED; - } - } - } else { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - if (em) { - if (em->get_property) { - JSValue obj1, retval; - /* XXX: should pass throw_ref_error */ - /* Note: if 'p' is a prototype, it can be - freed in the called function */ - obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - retval = em->get_property(ctx, obj1, prop, this_obj); - JS_FreeValue(ctx, obj1); - return retval; - } - if (em->get_own_property) { - JSPropertyDescriptor desc; - int ret; - JSValue obj1; - - /* Note: if 'p' is a prototype, it can be - freed in the called function */ - obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - ret = em->get_own_property(ctx, &desc, obj1, prop); - JS_FreeValue(ctx, obj1); - if (ret < 0) - return JS_EXCEPTION; - if (ret) { - if (desc.flags & JS_PROP_GETSET) { - JS_FreeValue(ctx, desc.setter); - return JS_CallFree(ctx, desc.getter, this_obj, 0, NULL); - } else { - return desc.value; - } - } - } - } - } - } - p = p->shape->proto; - if (!p) - break; - } - if (unlikely(throw_ref_error)) { - return JS_ThrowReferenceErrorNotDefined(ctx, prop); - } else { - return JS_UNDEFINED; - } -} - -static JSValue JS_ThrowTypeErrorPrivateNotFound(JSContext *ctx, JSAtom atom) -{ - return JS_ThrowTypeErrorAtom(ctx, "private class field '%s' does not exist", - atom); -} - -/* Private fields can be added even on non extensible objects or - Proxies */ -static int JS_DefinePrivateField(JSContext *ctx, JSValueConst obj, - JSValueConst name, JSValue val) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - JSAtom prop; - - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) { - JS_ThrowTypeErrorNotAnObject(ctx); - goto fail; - } - /* safety check */ - if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) { - JS_ThrowTypeErrorNotASymbol(ctx); - goto fail; - } - prop = js_symbol_to_atom(ctx, (JSValue)name); - p = JS_VALUE_GET_OBJ(obj); - prs = find_own_property(&pr, p, prop); - if (prs) { - JS_ThrowTypeErrorAtom(ctx, "private class field '%s' already exists", - prop); - goto fail; - } - pr = add_property(ctx, p, prop, JS_PROP_C_W_E); - if (unlikely(!pr)) { - fail: - JS_FreeValue(ctx, val); - return -1; - } - pr->u.value = val; - return 0; -} - -static JSValue JS_GetPrivateField(JSContext *ctx, JSValueConst obj, - JSValueConst name) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - JSAtom prop; - - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) - return JS_ThrowTypeErrorNotAnObject(ctx); - /* safety check */ - if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) - return JS_ThrowTypeErrorNotASymbol(ctx); - prop = js_symbol_to_atom(ctx, (JSValue)name); - p = JS_VALUE_GET_OBJ(obj); - prs = find_own_property(&pr, p, prop); - if (!prs) { - JS_ThrowTypeErrorPrivateNotFound(ctx, prop); - return JS_EXCEPTION; - } - return JS_DupValue(ctx, pr->u.value); -} - -static int JS_SetPrivateField(JSContext *ctx, JSValueConst obj, - JSValueConst name, JSValue val) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - JSAtom prop; - - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) { - JS_ThrowTypeErrorNotAnObject(ctx); - goto fail; - } - /* safety check */ - if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) { - JS_ThrowTypeErrorNotASymbol(ctx); - goto fail; - } - prop = js_symbol_to_atom(ctx, (JSValue)name); - p = JS_VALUE_GET_OBJ(obj); - prs = find_own_property(&pr, p, prop); - if (!prs) { - JS_ThrowTypeErrorPrivateNotFound(ctx, prop); - fail: - JS_FreeValue(ctx, val); - return -1; - } - set_value(ctx, &pr->u.value, val); - return 0; -} - -/* add a private brand field to 'home_obj' if not already present and - if obj is != null add a private brand to it */ -static int JS_AddBrand(JSContext *ctx, JSValueConst obj, JSValueConst home_obj) -{ - JSObject *p, *p1; - JSShapeProperty *prs; - JSProperty *pr; - JSValue brand; - JSAtom brand_atom; - - if (unlikely(JS_VALUE_GET_TAG(home_obj) != JS_TAG_OBJECT)) { - JS_ThrowTypeErrorNotAnObject(ctx); - return -1; - } - p = JS_VALUE_GET_OBJ(home_obj); - prs = find_own_property(&pr, p, JS_ATOM_Private_brand); - if (!prs) { - /* if the brand is not present, add it */ - brand = JS_NewSymbolFromAtom(ctx, JS_ATOM_brand, JS_ATOM_TYPE_PRIVATE); - if (JS_IsException(brand)) - return -1; - pr = add_property(ctx, p, JS_ATOM_Private_brand, JS_PROP_C_W_E); - if (!pr) { - JS_FreeValue(ctx, brand); - return -1; - } - pr->u.value = JS_DupValue(ctx, brand); - } else { - brand = JS_DupValue(ctx, pr->u.value); - } - brand_atom = js_symbol_to_atom(ctx, brand); - - if (JS_IsObject(obj)) { - p1 = JS_VALUE_GET_OBJ(obj); - prs = find_own_property(&pr, p1, brand_atom); - if (unlikely(prs)) { - JS_FreeAtom(ctx, brand_atom); - JS_ThrowTypeError(ctx, "private method is already present"); - return -1; - } - pr = add_property(ctx, p1, brand_atom, JS_PROP_C_W_E); - JS_FreeAtom(ctx, brand_atom); - if (!pr) - return -1; - pr->u.value = JS_UNDEFINED; - } else { - JS_FreeAtom(ctx, brand_atom); - } - return 0; -} - -/* return a boolean telling if the brand of the home object of 'func' - is present on 'obj' or -1 in case of exception */ -static int JS_CheckBrand(JSContext *ctx, JSValueConst obj, JSValueConst func) -{ - JSObject *p, *p1, *home_obj; - JSShapeProperty *prs; - JSProperty *pr; - JSValueConst brand; - - /* get the home object of 'func' */ - if (unlikely(JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT)) - goto not_obj; - p1 = JS_VALUE_GET_OBJ(func); - if (!js_class_has_bytecode(p1->class_id)) - goto not_obj; - home_obj = p1->u.func.home_object; - if (!home_obj) - goto not_obj; - prs = find_own_property(&pr, home_obj, JS_ATOM_Private_brand); - if (!prs) { - JS_ThrowTypeError(ctx, "expecting private field"); - return -1; - } - brand = pr->u.value; - /* safety check */ - if (unlikely(JS_VALUE_GET_TAG(brand) != JS_TAG_SYMBOL)) - goto not_obj; - - /* get the brand array of 'obj' */ - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) { - not_obj: - JS_ThrowTypeErrorNotAnObject(ctx); - return -1; - } - p = JS_VALUE_GET_OBJ(obj); - prs = find_own_property(&pr, p, js_symbol_to_atom(ctx, (JSValue)brand)); - return (prs != NULL); -} - -static uint32_t js_string_obj_get_length(JSContext *ctx, - JSValueConst obj) -{ - JSObject *p; - JSString *p1; - uint32_t len = 0; - - /* This is a class exotic method: obj class_id is JS_CLASS_STRING */ - p = JS_VALUE_GET_OBJ(obj); - if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING) { - p1 = JS_VALUE_GET_STRING(p->u.object_data); - len = p1->len; - } - return len; -} - -static int num_keys_cmp(const void *p1, const void *p2, void *opaque) -{ - JSContext *ctx = opaque; - JSAtom atom1 = ((const JSPropertyEnum *)p1)->atom; - JSAtom atom2 = ((const JSPropertyEnum *)p2)->atom; - uint32_t v1, v2; - BOOL atom1_is_integer, atom2_is_integer; - - atom1_is_integer = JS_AtomIsArrayIndex(ctx, &v1, atom1); - atom2_is_integer = JS_AtomIsArrayIndex(ctx, &v2, atom2); - assert(atom1_is_integer && atom2_is_integer); - if (v1 < v2) - return -1; - else if (v1 == v2) - return 0; - else - return 1; -} - -static void js_free_prop_enum(JSContext *ctx, JSPropertyEnum *tab, uint32_t len) -{ - uint32_t i; - if (tab) { - for(i = 0; i < len; i++) - JS_FreeAtom(ctx, tab[i].atom); - js_free(ctx, tab); - } -} - -/* return < 0 in case if exception, 0 if OK. ptab and its atoms must - be freed by the user. */ -static int __exception JS_GetOwnPropertyNamesInternal(JSContext *ctx, - JSPropertyEnum **ptab, - uint32_t *plen, - JSObject *p, int flags) -{ - int i, j; - JSShape *sh; - JSShapeProperty *prs; - JSPropertyEnum *tab_atom, *tab_exotic; - JSAtom atom; - uint32_t num_keys_count, str_keys_count, sym_keys_count, atom_count; - uint32_t num_index, str_index, sym_index, exotic_count, exotic_keys_count; - BOOL is_enumerable, num_sorted; - uint32_t num_key; - JSAtomKindEnum kind; - - /* clear pointer for consistency in case of failure */ - *ptab = NULL; - *plen = 0; - - /* compute the number of returned properties */ - num_keys_count = 0; - str_keys_count = 0; - sym_keys_count = 0; - exotic_keys_count = 0; - exotic_count = 0; - tab_exotic = NULL; - sh = p->shape; - for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { - atom = prs->atom; - if (atom != JS_ATOM_NULL) { - is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0); - kind = JS_AtomGetKind(ctx, atom); - if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) && - ((flags >> kind) & 1) != 0) { - /* need to raise an exception in case of the module - name space (implicit GetOwnProperty) */ - if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) && - (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY))) { - JSVarRef *var_ref = p->prop[i].u.var_ref; - if (unlikely(JS_IsUninitialized(*var_ref->pvalue))) { - JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return -1; - } - } - if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) { - num_keys_count++; - } else if (kind == JS_ATOM_KIND_STRING) { - str_keys_count++; - } else { - sym_keys_count++; - } - } - } - } - - if (p->is_exotic) { - if (p->fast_array) { - if (flags & JS_GPN_STRING_MASK) { - num_keys_count += p->u.array.count; - } - } else if (p->class_id == JS_CLASS_STRING) { - if (flags & JS_GPN_STRING_MASK) { - num_keys_count += js_string_obj_get_length(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - } - } else { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - if (em && em->get_own_property_names) { - if (em->get_own_property_names(ctx, &tab_exotic, &exotic_count, - JS_MKPTR(JS_TAG_OBJECT, p))) - return -1; - for(i = 0; i < exotic_count; i++) { - atom = tab_exotic[i].atom; - kind = JS_AtomGetKind(ctx, atom); - if (((flags >> kind) & 1) != 0) { - is_enumerable = FALSE; - if (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY)) { - JSPropertyDescriptor desc; - int res; - /* set the "is_enumerable" field if necessary */ - res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom); - if (res < 0) { - js_free_prop_enum(ctx, tab_exotic, exotic_count); - return -1; - } - if (res) { - is_enumerable = - ((desc.flags & JS_PROP_ENUMERABLE) != 0); - js_free_desc(ctx, &desc); - } - tab_exotic[i].is_enumerable = is_enumerable; - } - if (!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) { - exotic_keys_count++; - } - } - } - } - } - } - - /* fill them */ - - atom_count = num_keys_count + str_keys_count + sym_keys_count + exotic_keys_count; - /* avoid allocating 0 bytes */ - tab_atom = js_malloc(ctx, sizeof(tab_atom[0]) * max_int(atom_count, 1)); - if (!tab_atom) { - js_free_prop_enum(ctx, tab_exotic, exotic_count); - return -1; - } - - num_index = 0; - str_index = num_keys_count; - sym_index = str_index + str_keys_count; - - num_sorted = TRUE; - sh = p->shape; - for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { - atom = prs->atom; - if (atom != JS_ATOM_NULL) { - is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0); - kind = JS_AtomGetKind(ctx, atom); - if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) && - ((flags >> kind) & 1) != 0) { - if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) { - j = num_index++; - num_sorted = FALSE; - } else if (kind == JS_ATOM_KIND_STRING) { - j = str_index++; - } else { - j = sym_index++; - } - tab_atom[j].atom = JS_DupAtom(ctx, atom); - tab_atom[j].is_enumerable = is_enumerable; - } - } - } - - if (p->is_exotic) { - int len; - if (p->fast_array) { - if (flags & JS_GPN_STRING_MASK) { - len = p->u.array.count; - goto add_array_keys; - } - } else if (p->class_id == JS_CLASS_STRING) { - if (flags & JS_GPN_STRING_MASK) { - len = js_string_obj_get_length(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - add_array_keys: - for(i = 0; i < len; i++) { - tab_atom[num_index].atom = __JS_AtomFromUInt32(i); - if (tab_atom[num_index].atom == JS_ATOM_NULL) { - js_free_prop_enum(ctx, tab_atom, num_index); - return -1; - } - tab_atom[num_index].is_enumerable = TRUE; - num_index++; - } - } - } else { - /* Note: exotic keys are not reordered and comes after the object own properties. */ - for(i = 0; i < exotic_count; i++) { - atom = tab_exotic[i].atom; - is_enumerable = tab_exotic[i].is_enumerable; - kind = JS_AtomGetKind(ctx, atom); - if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) && - ((flags >> kind) & 1) != 0) { - tab_atom[sym_index].atom = atom; - tab_atom[sym_index].is_enumerable = is_enumerable; - sym_index++; - } else { - JS_FreeAtom(ctx, atom); - } - } - js_free(ctx, tab_exotic); - } - } - - assert(num_index == num_keys_count); - assert(str_index == num_keys_count + str_keys_count); - assert(sym_index == atom_count); - - if (num_keys_count != 0 && !num_sorted) { - rqsort(tab_atom, num_keys_count, sizeof(tab_atom[0]), num_keys_cmp, - ctx); - } - *ptab = tab_atom; - *plen = atom_count; - return 0; -} - -int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab, - uint32_t *plen, JSValueConst obj, int flags) -{ - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) { - JS_ThrowTypeErrorNotAnObject(ctx); - return -1; - } - return JS_GetOwnPropertyNamesInternal(ctx, ptab, plen, - JS_VALUE_GET_OBJ(obj), flags); -} - -/* Return -1 if exception, - FALSE if the property does not exist, TRUE if it exists. If TRUE is - returned, the property descriptor 'desc' is filled present. */ -static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc, - JSObject *p, JSAtom prop) -{ - JSShapeProperty *prs; - JSProperty *pr; - -retry: - prs = find_own_property(&pr, p, prop); - if (prs) { - if (desc) { - desc->flags = prs->flags & JS_PROP_C_W_E; - desc->getter = JS_UNDEFINED; - desc->setter = JS_UNDEFINED; - desc->value = JS_UNDEFINED; - if (unlikely(prs->flags & JS_PROP_TMASK)) { - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - desc->flags |= JS_PROP_GETSET; - if (pr->u.getset.getter) - desc->getter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); - if (pr->u.getset.setter) - desc->setter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - JSValue val = *pr->u.var_ref->pvalue; - if (unlikely(JS_IsUninitialized(val))) { - JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return -1; - } - desc->value = JS_DupValue(ctx, val); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - /* Instantiate property and retry */ - if (JS_AutoInitProperty(ctx, p, prop, pr, prs)) - return -1; - goto retry; - } - } else { - desc->value = JS_DupValue(ctx, pr->u.value); - } - } else { - /* for consistency, send the exception even if desc is NULL */ - if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF)) { - if (unlikely(JS_IsUninitialized(*pr->u.var_ref->pvalue))) { - JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return -1; - } - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - /* nothing to do: delay instantiation until actual value and/or attributes are read */ - } - } - return TRUE; - } - if (p->is_exotic) { - if (p->fast_array) { - /* specific case for fast arrays */ - if (__JS_AtomIsTaggedInt(prop)) { - uint32_t idx; - idx = __JS_AtomToUInt32(prop); - if (idx < p->u.array.count) { - if (desc) { - desc->flags = JS_PROP_WRITABLE | JS_PROP_ENUMERABLE | - JS_PROP_CONFIGURABLE; - desc->getter = JS_UNDEFINED; - desc->setter = JS_UNDEFINED; - desc->value = JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx); - } - return TRUE; - } - } - } else { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - if (em && em->get_own_property) { - return em->get_own_property(ctx, desc, - JS_MKPTR(JS_TAG_OBJECT, p), prop); - } - } - } - return FALSE; -} - -int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc, - JSValueConst obj, JSAtom prop) -{ - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) { - JS_ThrowTypeErrorNotAnObject(ctx); - return -1; - } - return JS_GetOwnPropertyInternal(ctx, desc, JS_VALUE_GET_OBJ(obj), prop); -} - -/* return -1 if exception (Proxy object only) or TRUE/FALSE */ -int JS_IsExtensible(JSContext *ctx, JSValueConst obj) -{ - JSObject *p; - - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - if (unlikely(p->class_id == JS_CLASS_PROXY)) - return js_proxy_isExtensible(ctx, obj); - else - return p->extensible; -} - -/* return -1 if exception (Proxy object only) or TRUE/FALSE */ -int JS_PreventExtensions(JSContext *ctx, JSValueConst obj) -{ - JSObject *p; - - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - if (unlikely(p->class_id == JS_CLASS_PROXY)) - return js_proxy_preventExtensions(ctx, obj); - p->extensible = FALSE; - return TRUE; -} - -/* return -1 if exception otherwise TRUE or FALSE */ -int JS_HasProperty(JSContext *ctx, JSValueConst obj, JSAtom prop) -{ - JSObject *p; - int ret; - JSValue obj1; - - if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - for(;;) { - if (p->is_exotic) { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - if (em && em->has_property) { - /* has_property can free the prototype */ - obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - ret = em->has_property(ctx, obj1, prop); - JS_FreeValue(ctx, obj1); - return ret; - } - } - /* JS_GetOwnPropertyInternal can free the prototype */ - JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - ret = JS_GetOwnPropertyInternal(ctx, NULL, p, prop); - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - if (ret != 0) - return ret; - if (p->class_id >= JS_CLASS_UINT8C_ARRAY && - p->class_id <= JS_CLASS_FLOAT64_ARRAY) { - ret = JS_AtomIsNumericIndex(ctx, prop); - if (ret != 0) { - if (ret < 0) - return -1; - return FALSE; - } - } - p = p->shape->proto; - if (!p) - break; - } - return FALSE; -} - -/* val must be a symbol */ -static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val) -{ - JSAtomStruct *p = JS_VALUE_GET_PTR(val); - return js_get_atom_index(ctx->rt, p); -} - -/* return JS_ATOM_NULL in case of exception */ -JSAtom JS_ValueToAtom(JSContext *ctx, JSValueConst val) -{ - JSAtom atom; - uint32_t tag; - tag = JS_VALUE_GET_TAG(val); - if (tag == JS_TAG_INT && - (uint32_t)JS_VALUE_GET_INT(val) <= JS_ATOM_MAX_INT) { - /* fast path for integer values */ - atom = __JS_AtomFromUInt32(JS_VALUE_GET_INT(val)); - } else if (tag == JS_TAG_SYMBOL) { - JSAtomStruct *p = JS_VALUE_GET_PTR(val); - atom = JS_DupAtom(ctx, js_get_atom_index(ctx->rt, p)); - } else { - JSValue str; - str = JS_ToPropertyKey(ctx, val); - if (JS_IsException(str)) - return JS_ATOM_NULL; - if (JS_VALUE_GET_TAG(str) == JS_TAG_SYMBOL) { - atom = js_symbol_to_atom(ctx, str); - } else { - atom = JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(str)); - } - } - return atom; -} - -static JSValue JS_GetPropertyValue(JSContext *ctx, JSValueConst this_obj, - JSValue prop) -{ - JSAtom atom; - JSValue ret; - - if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT && - JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) { - JSObject *p; - uint32_t idx; - /* fast path for array access */ - p = JS_VALUE_GET_OBJ(this_obj); - idx = JS_VALUE_GET_INT(prop); - switch(p->class_id) { - case JS_CLASS_ARRAY: - case JS_CLASS_ARGUMENTS: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_DupValue(ctx, p->u.array.u.values[idx]); - case JS_CLASS_INT8_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewInt32(ctx, p->u.array.u.int8_ptr[idx]); - case JS_CLASS_UINT8C_ARRAY: - case JS_CLASS_UINT8_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewInt32(ctx, p->u.array.u.uint8_ptr[idx]); - case JS_CLASS_INT16_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewInt32(ctx, p->u.array.u.int16_ptr[idx]); - case JS_CLASS_UINT16_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewInt32(ctx, p->u.array.u.uint16_ptr[idx]); - case JS_CLASS_INT32_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewInt32(ctx, p->u.array.u.int32_ptr[idx]); - case JS_CLASS_UINT32_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewUint32(ctx, p->u.array.u.uint32_ptr[idx]); - case JS_CLASS_BIG_INT64_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewBigInt64(ctx, p->u.array.u.int64_ptr[idx]); - case JS_CLASS_BIG_UINT64_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return JS_NewBigUint64(ctx, p->u.array.u.uint64_ptr[idx]); - case JS_CLASS_FLOAT32_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return __JS_NewFloat64(ctx, p->u.array.u.float_ptr[idx]); - case JS_CLASS_FLOAT64_ARRAY: - if (unlikely(idx >= p->u.array.count)) goto slow_path; - return __JS_NewFloat64(ctx, p->u.array.u.double_ptr[idx]); - default: - goto slow_path; - } - } else { - slow_path: - atom = JS_ValueToAtom(ctx, prop); - JS_FreeValue(ctx, prop); - if (unlikely(atom == JS_ATOM_NULL)) - return JS_EXCEPTION; - ret = JS_GetProperty(ctx, this_obj, atom); - JS_FreeAtom(ctx, atom); - return ret; - } -} - -JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj, - uint32_t idx) -{ - return JS_GetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx)); -} - -/* Check if an object has a generalized numeric property. Return value: - -1 for exception, - TRUE if property exists, stored into *pval, - FALSE if proprty does not exist. - */ -static int JS_TryGetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, JSValue *pval) -{ - JSValue val = JS_UNDEFINED; - JSAtom prop; - int present; - - if (likely((uint64_t)idx <= JS_ATOM_MAX_INT)) { - /* fast path */ - present = JS_HasProperty(ctx, obj, __JS_AtomFromUInt32(idx)); - if (present > 0) { - val = JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx)); - if (unlikely(JS_IsException(val))) - present = -1; - } - } else { - prop = JS_NewAtomInt64(ctx, idx); - present = -1; - if (likely(prop != JS_ATOM_NULL)) { - present = JS_HasProperty(ctx, obj, prop); - if (present > 0) { - val = JS_GetProperty(ctx, obj, prop); - if (unlikely(JS_IsException(val))) - present = -1; - } - JS_FreeAtom(ctx, prop); - } - } - *pval = val; - return present; -} - -static JSValue JS_GetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx) -{ - JSAtom prop; - JSValue val; - - if ((uint64_t)idx <= INT32_MAX) { - /* fast path for fast arrays */ - return JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx)); - } - prop = JS_NewAtomInt64(ctx, idx); - if (prop == JS_ATOM_NULL) - return JS_EXCEPTION; - - val = JS_GetProperty(ctx, obj, prop); - JS_FreeAtom(ctx, prop); - return val; -} - -JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj, - const char *prop) -{ - JSAtom atom; - JSValue ret; - atom = JS_NewAtom(ctx, prop); - ret = JS_GetProperty(ctx, this_obj, atom); - JS_FreeAtom(ctx, atom); - return ret; -} - -/* Note: the property value is not initialized. Return NULL if memory - error. */ -static JSProperty *add_property(JSContext *ctx, - JSObject *p, JSAtom prop, int prop_flags) -{ - JSShape *sh, *new_sh; - - sh = p->shape; - if (sh->is_hashed) { - /* try to find an existing shape */ - new_sh = find_hashed_shape_prop(ctx->rt, sh, prop, prop_flags); - if (new_sh) { - /* matching shape found: use it */ - /* the property array may need to be resized */ - if (new_sh->prop_size != sh->prop_size) { - JSProperty *new_prop; - new_prop = js_realloc(ctx, p->prop, sizeof(p->prop[0]) * - new_sh->prop_size); - if (!new_prop) - return NULL; - p->prop = new_prop; - } - p->shape = js_dup_shape(new_sh); - js_free_shape(ctx->rt, sh); - return &p->prop[new_sh->prop_count - 1]; - } else if (sh->header.ref_count != 1) { - /* if the shape is shared, clone it */ - new_sh = js_clone_shape(ctx, sh); - if (!new_sh) - return NULL; - /* hash the cloned shape */ - new_sh->is_hashed = TRUE; - js_shape_hash_link(ctx->rt, new_sh); - js_free_shape(ctx->rt, p->shape); - p->shape = new_sh; - } - } - assert(p->shape->header.ref_count == 1); - if (add_shape_property(ctx, &p->shape, p, prop, prop_flags)) - return NULL; - return &p->prop[p->shape->prop_count - 1]; -} - -/* can be called on Array or Arguments objects. return < 0 if - memory alloc error. */ -static no_inline __exception int convert_fast_array_to_array(JSContext *ctx, - JSObject *p) -{ - JSProperty *pr; - JSShape *sh; - JSValue *tab; - uint32_t i, len, new_count; - - if (js_shape_prepare_update(ctx, p, NULL)) - return -1; - len = p->u.array.count; - /* resize the properties once to simplify the error handling */ - sh = p->shape; - new_count = sh->prop_count + len; - if (new_count > sh->prop_size) { - if (resize_properties(ctx, &p->shape, p, new_count)) - return -1; - } - - tab = p->u.array.u.values; - for(i = 0; i < len; i++) { - /* add_property cannot fail here but - __JS_AtomFromUInt32(i) fails for i > INT32_MAX */ - pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E); - pr->u.value = *tab++; - } - js_free(ctx, p->u.array.u.values); - p->u.array.count = 0; - p->u.array.u.values = NULL; /* fail safe */ - p->u.array.u1.size = 0; - p->fast_array = 0; - return 0; -} - -static int delete_property(JSContext *ctx, JSObject *p, JSAtom atom) -{ - JSShape *sh; - JSShapeProperty *pr, *lpr, *prop; - JSProperty *pr1; - uint32_t lpr_idx; - intptr_t h, h1; - - redo: - sh = p->shape; - h1 = atom & sh->prop_hash_mask; - h = prop_hash_end(sh)[-h1 - 1]; - prop = get_shape_prop(sh); - lpr = NULL; - lpr_idx = 0; /* prevent warning */ - while (h != 0) { - pr = &prop[h - 1]; - if (likely(pr->atom == atom)) { - /* found ! */ - if (!(pr->flags & JS_PROP_CONFIGURABLE)) - return FALSE; - /* realloc the shape if needed */ - if (lpr) - lpr_idx = lpr - get_shape_prop(sh); - if (js_shape_prepare_update(ctx, p, &pr)) - return -1; - sh = p->shape; - /* remove property */ - if (lpr) { - lpr = get_shape_prop(sh) + lpr_idx; - lpr->hash_next = pr->hash_next; - } else { - prop_hash_end(sh)[-h1 - 1] = pr->hash_next; - } - sh->deleted_prop_count++; - /* free the entry */ - pr1 = &p->prop[h - 1]; - free_property(ctx->rt, pr1, pr->flags); - JS_FreeAtom(ctx, pr->atom); - /* put default values */ - pr->flags = 0; - pr->atom = JS_ATOM_NULL; - pr1->u.value = JS_UNDEFINED; - - /* compact the properties if too many deleted properties */ - if (sh->deleted_prop_count >= 8 && - sh->deleted_prop_count >= ((unsigned)sh->prop_count / 2)) { - compact_properties(ctx, p); - } - return TRUE; - } - lpr = pr; - h = pr->hash_next; - } - - if (p->is_exotic) { - if (p->fast_array) { - uint32_t idx; - if (JS_AtomIsArrayIndex(ctx, &idx, atom) && - idx < p->u.array.count) { - if (p->class_id == JS_CLASS_ARRAY || - p->class_id == JS_CLASS_ARGUMENTS) { - /* Special case deleting the last element of a fast Array */ - if (idx == p->u.array.count - 1) { - JS_FreeValue(ctx, p->u.array.u.values[idx]); - p->u.array.count = idx; - return TRUE; - } - if (convert_fast_array_to_array(ctx, p)) - return -1; - goto redo; - } else { - return FALSE; - } - } - } else { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - if (em && em->delete_property) { - return em->delete_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), atom); - } - } - } - /* not found */ - return TRUE; -} - -static int call_setter(JSContext *ctx, JSObject *setter, - JSValueConst this_obj, JSValue val, int flags) -{ - JSValue ret, func; - if (likely(setter)) { - func = JS_MKPTR(JS_TAG_OBJECT, setter); - /* Note: the field could be removed in the setter */ - func = JS_DupValue(ctx, func); - ret = JS_CallFree(ctx, func, this_obj, 1, (JSValueConst *)&val); - JS_FreeValue(ctx, val); - if (JS_IsException(ret)) - return -1; - JS_FreeValue(ctx, ret); - return TRUE; - } else { - JS_FreeValue(ctx, val); - if ((flags & JS_PROP_THROW) || - ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { - JS_ThrowTypeError(ctx, "no setter for property"); - return -1; - } - return FALSE; - } -} - -/* set the array length and remove the array elements if necessary. */ -static int set_array_length(JSContext *ctx, JSObject *p, JSValue val, - int flags) -{ - uint32_t len, idx, cur_len; - int i, ret; - - /* Note: this call can reallocate the properties of 'p' */ - ret = JS_ToArrayLengthFree(ctx, &len, val, FALSE); - if (ret) - return -1; - /* JS_ToArrayLengthFree() must be done before the read-only test */ - if (unlikely(!(p->shape->prop[0].flags & JS_PROP_WRITABLE))) - return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length); - - if (likely(p->fast_array)) { - uint32_t old_len = p->u.array.count; - if (len < old_len) { - for(i = len; i < old_len; i++) { - JS_FreeValue(ctx, p->u.array.u.values[i]); - } - p->u.array.count = len; - } - p->prop[0].u.value = JS_NewUint32(ctx, len); - } else { - /* Note: length is always a uint32 because the object is an - array */ - JS_ToUint32(ctx, &cur_len, p->prop[0].u.value); - if (len < cur_len) { - uint32_t d; - JSShape *sh; - JSShapeProperty *pr; - - d = cur_len - len; - sh = p->shape; - if (d <= sh->prop_count) { - JSAtom atom; - - /* faster to iterate */ - while (cur_len > len) { - atom = JS_NewAtomUInt32(ctx, cur_len - 1); - ret = delete_property(ctx, p, atom); - JS_FreeAtom(ctx, atom); - if (unlikely(!ret)) { - /* unlikely case: property is not - configurable */ - break; - } - cur_len--; - } - } else { - /* faster to iterate thru all the properties. Need two - passes in case one of the property is not - configurable */ - cur_len = len; - for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; - i++, pr++) { - if (pr->atom != JS_ATOM_NULL && - JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) { - if (idx >= cur_len && - !(pr->flags & JS_PROP_CONFIGURABLE)) { - cur_len = idx + 1; - } - } - } - - for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; - i++, pr++) { - if (pr->atom != JS_ATOM_NULL && - JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) { - if (idx >= cur_len) { - /* remove the property */ - delete_property(ctx, p, pr->atom); - /* WARNING: the shape may have been modified */ - sh = p->shape; - pr = get_shape_prop(sh) + i; - } - } - } - } - } else { - cur_len = len; - } - set_value(ctx, &p->prop[0].u.value, JS_NewUint32(ctx, cur_len)); - if (unlikely(cur_len > len)) { - return JS_ThrowTypeErrorOrFalse(ctx, flags, "not configurable"); - } - } - return TRUE; -} - -/* return -1 if exception */ -static int expand_fast_array(JSContext *ctx, JSObject *p, uint32_t new_len) -{ - uint32_t new_size; - size_t slack; - JSValue *new_array_prop; - /* XXX: potential arithmetic overflow */ - new_size = max_int(new_len, p->u.array.u1.size * 3 / 2); - new_array_prop = js_realloc2(ctx, p->u.array.u.values, sizeof(JSValue) * new_size, &slack); - if (!new_array_prop) - return -1; - new_size += slack / sizeof(*new_array_prop); - p->u.array.u.values = new_array_prop; - p->u.array.u1.size = new_size; - return 0; -} - -/* Preconditions: 'p' must be of class JS_CLASS_ARRAY, p->fast_array = - TRUE and p->extensible = TRUE */ -static int add_fast_array_element(JSContext *ctx, JSObject *p, - JSValue val, int flags) -{ - uint32_t new_len, array_len; - /* extend the array by one */ - /* XXX: convert to slow array if new_len > 2^31-1 elements */ - new_len = p->u.array.count + 1; - /* update the length if necessary. We assume that if the length is - not an integer, then if it >= 2^31. */ - if (likely(JS_VALUE_GET_TAG(p->prop[0].u.value) == JS_TAG_INT)) { - array_len = JS_VALUE_GET_INT(p->prop[0].u.value); - if (new_len > array_len) { - if (unlikely(!(get_shape_prop(p->shape)->flags & JS_PROP_WRITABLE))) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length); - } - p->prop[0].u.value = JS_NewInt32(ctx, new_len); - } - } - if (unlikely(new_len > p->u.array.u1.size)) { - if (expand_fast_array(ctx, p, new_len)) { - JS_FreeValue(ctx, val); - return -1; - } - } - p->u.array.u.values[new_len - 1] = val; - p->u.array.count = new_len; - return TRUE; -} - -/* Allocate a new fast array. Its 'length' property is set to zero. It - maximum size is 2^31-1 elements. For convenience, 'len' is a 64 bit - integer. WARNING: the content of the array is not initialized. */ -static JSValue js_allocate_fast_array(JSContext *ctx, int64_t len) -{ - JSValue arr; - JSObject *p; - - if (len > INT32_MAX) - return JS_ThrowRangeError(ctx, "invalid array length"); - arr = JS_NewArray(ctx); - if (JS_IsException(arr)) - return arr; - if (len > 0) { - p = JS_VALUE_GET_OBJ(arr); - if (expand_fast_array(ctx, p, len) < 0) { - JS_FreeValue(ctx, arr); - return JS_EXCEPTION; - } - p->u.array.count = len; - } - return arr; -} - -static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc) -{ - JS_FreeValue(ctx, desc->getter); - JS_FreeValue(ctx, desc->setter); - JS_FreeValue(ctx, desc->value); -} - -/* return -1 in case of exception or TRUE or FALSE. Warning: 'val' is - freed by the function. 'flags' is a bitmask of JS_PROP_NO_ADD, - JS_PROP_THROW or JS_PROP_THROW_STRICT. If JS_PROP_NO_ADD is set, - the new property is not added and an error is raised. 'this_obj' is - the receiver. If obj != this_obj, then obj must be an object - (Reflect.set case). */ -int JS_SetPropertyInternal(JSContext *ctx, JSValueConst obj, - JSAtom prop, JSValue val, JSValueConst this_obj, int flags) -{ - JSObject *p, *p1; - JSShapeProperty *prs; - JSProperty *pr; - uint32_t tag; - JSPropertyDescriptor desc; - int ret; -#if 0 - printf("JS_SetPropertyInternal: "); print_atom(ctx, prop); printf("\n"); -#endif - tag = JS_VALUE_GET_TAG(this_obj); - if (unlikely(tag != JS_TAG_OBJECT)) { - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - p = NULL; - p1 = JS_VALUE_GET_OBJ(obj); - goto prototype_lookup; - } else { - switch(tag) { - case JS_TAG_NULL: - JS_FreeValue(ctx, val); - JS_ThrowTypeErrorAtom(ctx, "cannot set property '%s' of null", prop); - return -1; - case JS_TAG_UNDEFINED: - JS_FreeValue(ctx, val); - JS_ThrowTypeErrorAtom(ctx, "cannot set property '%s' of undefined", prop); - return -1; - default: - /* even on a primitive type we can have setters on the prototype */ - p = NULL; - p1 = JS_VALUE_GET_OBJ(JS_GetPrototypePrimitive(ctx, obj)); - goto prototype_lookup; - } - } - } else { - p = JS_VALUE_GET_OBJ(this_obj); - p1 = JS_VALUE_GET_OBJ(obj); - if (unlikely(p != p1)) - goto retry2; - } - - /* fast path if obj == this_obj */ - retry: - prs = find_own_property(&pr, p1, prop); - if (prs) { - if (likely((prs->flags & (JS_PROP_TMASK | JS_PROP_WRITABLE | - JS_PROP_LENGTH)) == JS_PROP_WRITABLE)) { - /* fast case */ - set_value(ctx, &pr->u.value, val); - return TRUE; - } else if (prs->flags & JS_PROP_LENGTH) { - assert(p->class_id == JS_CLASS_ARRAY); - assert(prop == JS_ATOM_length); - return set_array_length(ctx, p, val, flags); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - /* JS_PROP_WRITABLE is always true for variable - references, but they are write protected in module name - spaces. */ - if (p->class_id == JS_CLASS_MODULE_NS) - goto read_only_prop; - set_value(ctx, pr->u.var_ref->pvalue, val); - return TRUE; - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - /* Instantiate property and retry (potentially useless) */ - if (JS_AutoInitProperty(ctx, p, prop, pr, prs)) { - JS_FreeValue(ctx, val); - return -1; - } - goto retry; - } else { - goto read_only_prop; - } - } - - for(;;) { - if (p1->is_exotic) { - if (p1->fast_array) { - if (__JS_AtomIsTaggedInt(prop)) { - uint32_t idx = __JS_AtomToUInt32(prop); - if (idx < p1->u.array.count) { - if (unlikely(p == p1)) - return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val, flags); - else - break; - } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY && - p1->class_id <= JS_CLASS_FLOAT64_ARRAY) { - goto typed_array_oob; - } - } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY && - p1->class_id <= JS_CLASS_FLOAT64_ARRAY) { - ret = JS_AtomIsNumericIndex(ctx, prop); - if (ret != 0) { - if (ret < 0) { - JS_FreeValue(ctx, val); - return -1; - } - typed_array_oob: - /* must convert the argument even if out of bound access */ - if (p1->class_id == JS_CLASS_BIG_INT64_ARRAY || - p1->class_id == JS_CLASS_BIG_UINT64_ARRAY) { - int64_t v; - if (JS_ToBigInt64Free(ctx, &v, val)) - return -1; - } else { - val = JS_ToNumberFree(ctx, val); - JS_FreeValue(ctx, val); - if (JS_IsException(val)) - return -1; - } - return TRUE; - } - } - } else { - const JSClassExoticMethods *em = ctx->rt->class_array[p1->class_id].exotic; - if (em) { - JSValue obj1; - if (em->set_property) { - /* set_property can free the prototype */ - obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); - ret = em->set_property(ctx, obj1, prop, - val, this_obj, flags); - JS_FreeValue(ctx, obj1); - JS_FreeValue(ctx, val); - return ret; - } - if (em->get_own_property) { - /* get_own_property can free the prototype */ - obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); - ret = em->get_own_property(ctx, &desc, - obj1, prop); - JS_FreeValue(ctx, obj1); - if (ret < 0) { - JS_FreeValue(ctx, val); - return ret; - } - if (ret) { - if (desc.flags & JS_PROP_GETSET) { - JSObject *setter; - if (JS_IsUndefined(desc.setter)) - setter = NULL; - else - setter = JS_VALUE_GET_OBJ(desc.setter); - ret = call_setter(ctx, setter, this_obj, val, flags); - JS_FreeValue(ctx, desc.getter); - JS_FreeValue(ctx, desc.setter); - return ret; - } else { - JS_FreeValue(ctx, desc.value); - if (!(desc.flags & JS_PROP_WRITABLE)) - goto read_only_prop; - if (likely(p == p1)) { - ret = JS_DefineProperty(ctx, this_obj, prop, val, - JS_UNDEFINED, JS_UNDEFINED, - JS_PROP_HAS_VALUE); - JS_FreeValue(ctx, val); - return ret; - } else { - break; - } - } - } - } - } - } - } - p1 = p1->shape->proto; - prototype_lookup: - if (!p1) - break; - - retry2: - prs = find_own_property(&pr, p1, prop); - if (prs) { - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - /* Instantiate property and retry (potentially useless) */ - if (JS_AutoInitProperty(ctx, p1, prop, pr, prs)) - return -1; - goto retry2; - } else if (!(prs->flags & JS_PROP_WRITABLE)) { - goto read_only_prop; - } - } - } - - if (unlikely(flags & JS_PROP_NO_ADD)) { - JS_FreeValue(ctx, val); - JS_ThrowReferenceErrorNotDefined(ctx, prop); - return -1; - } - - if (unlikely(!p)) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeErrorOrFalse(ctx, flags, "not an object"); - } - - if (unlikely(!p->extensible)) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible"); - } - - if (likely(p == JS_VALUE_GET_OBJ(obj))) { - if (p->is_exotic) { - if (p->class_id == JS_CLASS_ARRAY && p->fast_array && - __JS_AtomIsTaggedInt(prop)) { - uint32_t idx = __JS_AtomToUInt32(prop); - if (idx == p->u.array.count) { - /* fast case */ - return add_fast_array_element(ctx, p, val, flags); - } else { - goto generic_create_prop; - } - } else { - goto generic_create_prop; - } - } else { - pr = add_property(ctx, p, prop, JS_PROP_C_W_E); - if (unlikely(!pr)) { - JS_FreeValue(ctx, val); - return -1; - } - pr->u.value = val; - return TRUE; - } - } else { - /* generic case: modify the property in this_obj if it already exists */ - ret = JS_GetOwnPropertyInternal(ctx, &desc, p, prop); - if (ret < 0) { - JS_FreeValue(ctx, val); - return ret; - } - if (ret) { - if (desc.flags & JS_PROP_GETSET) { - JS_FreeValue(ctx, desc.getter); - JS_FreeValue(ctx, desc.setter); - JS_FreeValue(ctx, val); - return JS_ThrowTypeErrorOrFalse(ctx, flags, "setter is forbidden"); - } else { - JS_FreeValue(ctx, desc.value); - if (!(desc.flags & JS_PROP_WRITABLE) || - p->class_id == JS_CLASS_MODULE_NS) { - read_only_prop: - JS_FreeValue(ctx, val); - return JS_ThrowTypeErrorReadOnly(ctx, flags, prop); - } - } - ret = JS_DefineProperty(ctx, this_obj, prop, val, - JS_UNDEFINED, JS_UNDEFINED, - JS_PROP_HAS_VALUE); - JS_FreeValue(ctx, val); - return ret; - } else { - generic_create_prop: - ret = JS_CreateProperty(ctx, p, prop, val, JS_UNDEFINED, JS_UNDEFINED, - flags | - JS_PROP_HAS_VALUE | - JS_PROP_HAS_ENUMERABLE | - JS_PROP_HAS_WRITABLE | - JS_PROP_HAS_CONFIGURABLE | - JS_PROP_C_W_E); - JS_FreeValue(ctx, val); - return ret; - } - } -} - -/* flags can be JS_PROP_THROW or JS_PROP_THROW_STRICT */ -static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj, - JSValue prop, JSValue val, int flags) -{ - if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT && - JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) { - JSObject *p; - uint32_t idx; - double d; - int32_t v; - - /* fast path for array access */ - p = JS_VALUE_GET_OBJ(this_obj); - idx = JS_VALUE_GET_INT(prop); - switch(p->class_id) { - case JS_CLASS_ARRAY: - if (unlikely(idx >= (uint32_t)p->u.array.count)) { - JSObject *p1; - JSShape *sh1; - - /* fast path to add an element to the array */ - if (idx != (uint32_t)p->u.array.count || - !p->fast_array || !p->extensible) - goto slow_path; - /* check if prototype chain has a numeric property */ - p1 = p->shape->proto; - while (p1 != NULL) { - sh1 = p1->shape; - if (p1->class_id == JS_CLASS_ARRAY) { - if (unlikely(!p1->fast_array)) - goto slow_path; - } else if (p1->class_id == JS_CLASS_OBJECT) { - if (unlikely(sh1->has_small_array_index)) - goto slow_path; - } else { - goto slow_path; - } - p1 = sh1->proto; - } - /* add element */ - return add_fast_array_element(ctx, p, val, flags); - } - set_value(ctx, &p->u.array.u.values[idx], val); - break; - case JS_CLASS_ARGUMENTS: - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto slow_path; - set_value(ctx, &p->u.array.u.values[idx], val); - break; - case JS_CLASS_UINT8C_ARRAY: - if (JS_ToUint8ClampFree(ctx, &v, val)) - return -1; - /* Note: the conversion can detach the typed array, so the - array bound check must be done after */ - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto ta_out_of_bound; - p->u.array.u.uint8_ptr[idx] = v; - break; - case JS_CLASS_INT8_ARRAY: - case JS_CLASS_UINT8_ARRAY: - if (JS_ToInt32Free(ctx, &v, val)) - return -1; - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto ta_out_of_bound; - p->u.array.u.uint8_ptr[idx] = v; - break; - case JS_CLASS_INT16_ARRAY: - case JS_CLASS_UINT16_ARRAY: - if (JS_ToInt32Free(ctx, &v, val)) - return -1; - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto ta_out_of_bound; - p->u.array.u.uint16_ptr[idx] = v; - break; - case JS_CLASS_INT32_ARRAY: - case JS_CLASS_UINT32_ARRAY: - if (JS_ToInt32Free(ctx, &v, val)) - return -1; - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto ta_out_of_bound; - p->u.array.u.uint32_ptr[idx] = v; - break; - case JS_CLASS_BIG_INT64_ARRAY: - case JS_CLASS_BIG_UINT64_ARRAY: - /* XXX: need specific conversion function */ - { - int64_t v; - if (JS_ToBigInt64Free(ctx, &v, val)) - return -1; - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto ta_out_of_bound; - p->u.array.u.uint64_ptr[idx] = v; - } - break; - case JS_CLASS_FLOAT32_ARRAY: - if (JS_ToFloat64Free(ctx, &d, val)) - return -1; - if (unlikely(idx >= (uint32_t)p->u.array.count)) - goto ta_out_of_bound; - p->u.array.u.float_ptr[idx] = d; - break; - case JS_CLASS_FLOAT64_ARRAY: - if (JS_ToFloat64Free(ctx, &d, val)) - return -1; - if (unlikely(idx >= (uint32_t)p->u.array.count)) { - ta_out_of_bound: - return TRUE; - } - p->u.array.u.double_ptr[idx] = d; - break; - default: - goto slow_path; - } - return TRUE; - } else { - JSAtom atom; - int ret; - slow_path: - atom = JS_ValueToAtom(ctx, prop); - JS_FreeValue(ctx, prop); - if (unlikely(atom == JS_ATOM_NULL)) { - JS_FreeValue(ctx, val); - return -1; - } - ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, this_obj, flags); - JS_FreeAtom(ctx, atom); - return ret; - } -} - -int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj, - uint32_t idx, JSValue val) -{ - return JS_SetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx), val, - JS_PROP_THROW); -} - -int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj, - int64_t idx, JSValue val) -{ - JSAtom prop; - int res; - - if ((uint64_t)idx <= INT32_MAX) { - /* fast path for fast arrays */ - return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val, - JS_PROP_THROW); - } - prop = JS_NewAtomInt64(ctx, idx); - if (prop == JS_ATOM_NULL) { - JS_FreeValue(ctx, val); - return -1; - } - res = JS_SetProperty(ctx, this_obj, prop, val); - JS_FreeAtom(ctx, prop); - return res; -} - -int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj, - const char *prop, JSValue val) -{ - JSAtom atom; - int ret; - atom = JS_NewAtom(ctx, prop); - ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, this_obj, JS_PROP_THROW); - JS_FreeAtom(ctx, atom); - return ret; -} - -/* compute the property flags. For each flag: (JS_PROP_HAS_x forces - it, otherwise def_flags is used) - Note: makes assumption about the bit pattern of the flags -*/ -static int get_prop_flags(int flags, int def_flags) -{ - int mask; - mask = (flags >> JS_PROP_HAS_SHIFT) & JS_PROP_C_W_E; - return (flags & mask) | (def_flags & ~mask); -} - -static int JS_CreateProperty(JSContext *ctx, JSObject *p, - JSAtom prop, JSValueConst val, - JSValueConst getter, JSValueConst setter, - int flags) -{ - JSProperty *pr; - int ret, prop_flags; - - /* add a new property or modify an existing exotic one */ - if (p->is_exotic) { - if (p->class_id == JS_CLASS_ARRAY) { - uint32_t idx, len; - - if (p->fast_array) { - if (__JS_AtomIsTaggedInt(prop)) { - idx = __JS_AtomToUInt32(prop); - if (idx == p->u.array.count) { - if (!p->extensible) - goto not_extensible; - if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) - goto convert_to_array; - prop_flags = get_prop_flags(flags, 0); - if (prop_flags != JS_PROP_C_W_E) - goto convert_to_array; - return add_fast_array_element(ctx, p, - JS_DupValue(ctx, val), flags); - } else { - goto convert_to_array; - } - } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) { - /* convert the fast array to normal array */ - convert_to_array: - if (convert_fast_array_to_array(ctx, p)) - return -1; - goto generic_array; - } - } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) { - JSProperty *plen; - JSShapeProperty *pslen; - generic_array: - /* update the length field */ - plen = &p->prop[0]; - JS_ToUint32(ctx, &len, plen->u.value); - if ((idx + 1) > len) { - pslen = get_shape_prop(p->shape); - if (unlikely(!(pslen->flags & JS_PROP_WRITABLE))) - return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length); - /* XXX: should update the length after defining - the property */ - len = idx + 1; - set_value(ctx, &plen->u.value, JS_NewUint32(ctx, len)); - } - } - } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && - p->class_id <= JS_CLASS_FLOAT64_ARRAY) { - ret = JS_AtomIsNumericIndex(ctx, prop); - if (ret != 0) { - if (ret < 0) - return -1; - return JS_ThrowTypeErrorOrFalse(ctx, flags, "cannot create numeric index in typed array"); - } - } else if (!(flags & JS_PROP_NO_EXOTIC)) { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - if (em) { - if (em->define_own_property) { - return em->define_own_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), - prop, val, getter, setter, flags); - } - ret = JS_IsExtensible(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - if (ret < 0) - return -1; - if (!ret) - goto not_extensible; - } - } - } - - if (!p->extensible) { - not_extensible: - return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible"); - } - - if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { - prop_flags = (flags & (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) | - JS_PROP_GETSET; - } else { - prop_flags = flags & JS_PROP_C_W_E; - } - pr = add_property(ctx, p, prop, prop_flags); - if (unlikely(!pr)) - return -1; - if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { - pr->u.getset.getter = NULL; - if ((flags & JS_PROP_HAS_GET) && JS_IsFunction(ctx, getter)) { - pr->u.getset.getter = - JS_VALUE_GET_OBJ(JS_DupValue(ctx, getter)); - } - pr->u.getset.setter = NULL; - if ((flags & JS_PROP_HAS_SET) && JS_IsFunction(ctx, setter)) { - pr->u.getset.setter = - JS_VALUE_GET_OBJ(JS_DupValue(ctx, setter)); - } - } else { - if (flags & JS_PROP_HAS_VALUE) { - pr->u.value = JS_DupValue(ctx, val); - } else { - pr->u.value = JS_UNDEFINED; - } - } - return TRUE; -} - -/* return FALSE if not OK */ -static BOOL check_define_prop_flags(int prop_flags, int flags) -{ - BOOL has_accessor, is_getset; - - if (!(prop_flags & JS_PROP_CONFIGURABLE)) { - if ((flags & (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) == - (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) { - return FALSE; - } - if ((flags & JS_PROP_HAS_ENUMERABLE) && - (flags & JS_PROP_ENUMERABLE) != (prop_flags & JS_PROP_ENUMERABLE)) - return FALSE; - } - if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | - JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { - if (!(prop_flags & JS_PROP_CONFIGURABLE)) { - has_accessor = ((flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) != 0); - is_getset = ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET); - if (has_accessor != is_getset) - return FALSE; - if (!has_accessor && !is_getset && !(prop_flags & JS_PROP_WRITABLE)) { - /* not writable: cannot set the writable bit */ - if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == - (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) - return FALSE; - } - } - } - return TRUE; -} - -/* ensure that the shape can be safely modified */ -static int js_shape_prepare_update(JSContext *ctx, JSObject *p, - JSShapeProperty **pprs) -{ - JSShape *sh; - uint32_t idx = 0; /* prevent warning */ - - sh = p->shape; - if (sh->is_hashed) { - if (sh->header.ref_count != 1) { - if (pprs) - idx = *pprs - get_shape_prop(sh); - /* clone the shape (the resulting one is no longer hashed) */ - sh = js_clone_shape(ctx, sh); - if (!sh) - return -1; - js_free_shape(ctx->rt, p->shape); - p->shape = sh; - if (pprs) - *pprs = get_shape_prop(sh) + idx; - } else { - js_shape_hash_unlink(ctx->rt, sh); - sh->is_hashed = FALSE; - } - } - return 0; -} - -static int js_update_property_flags(JSContext *ctx, JSObject *p, - JSShapeProperty **pprs, int flags) -{ - if (flags != (*pprs)->flags) { - if (js_shape_prepare_update(ctx, p, pprs)) - return -1; - (*pprs)->flags = flags; - } - return 0; -} - -/* allowed flags: - JS_PROP_CONFIGURABLE, JS_PROP_WRITABLE, JS_PROP_ENUMERABLE - JS_PROP_HAS_GET, JS_PROP_HAS_SET, JS_PROP_HAS_VALUE, - JS_PROP_HAS_CONFIGURABLE, JS_PROP_HAS_WRITABLE, JS_PROP_HAS_ENUMERABLE, - JS_PROP_THROW, JS_PROP_NO_EXOTIC. - If JS_PROP_THROW is set, return an exception instead of FALSE. - if JS_PROP_NO_EXOTIC is set, do not call the exotic - define_own_property callback. - return -1 (exception), FALSE or TRUE. -*/ -int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj, - JSAtom prop, JSValueConst val, - JSValueConst getter, JSValueConst setter, int flags) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - int mask, res; - - if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT) { - JS_ThrowTypeErrorNotAnObject(ctx); - return -1; - } - p = JS_VALUE_GET_OBJ(this_obj); - - redo_prop_update: - prs = find_own_property(&pr, p, prop); - if (prs) { - /* the range of the Array length property is always tested before */ - if ((prs->flags & JS_PROP_LENGTH) && (flags & JS_PROP_HAS_VALUE)) { - uint32_t array_length; - if (JS_ToArrayLengthFree(ctx, &array_length, - JS_DupValue(ctx, val), FALSE)) { - return -1; - } - /* this code relies on the fact that Uint32 are never allocated */ - val = (JSValueConst)JS_NewUint32(ctx, array_length); - /* prs may have been modified */ - prs = find_own_property(&pr, p, prop); - assert(prs != NULL); - } - /* property already exists */ - if (!check_define_prop_flags(prs->flags, flags)) { - not_configurable: - return JS_ThrowTypeErrorOrFalse(ctx, flags, "property is not configurable"); - } - - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - /* Instantiate property and retry */ - if (JS_AutoInitProperty(ctx, p, prop, pr, prs)) - return -1; - goto redo_prop_update; - } - - if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | - JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { - if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { - JSObject *new_getter, *new_setter; - - if (JS_IsFunction(ctx, getter)) { - new_getter = JS_VALUE_GET_OBJ(getter); - } else { - new_getter = NULL; - } - if (JS_IsFunction(ctx, setter)) { - new_setter = JS_VALUE_GET_OBJ(setter); - } else { - new_setter = NULL; - } - - if ((prs->flags & JS_PROP_TMASK) != JS_PROP_GETSET) { - if (js_shape_prepare_update(ctx, p, &prs)) - return -1; - /* convert to getset */ - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - free_var_ref(ctx->rt, pr->u.var_ref); - } else { - JS_FreeValue(ctx, pr->u.value); - } - prs->flags = (prs->flags & - (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) | - JS_PROP_GETSET; - pr->u.getset.getter = NULL; - pr->u.getset.setter = NULL; - } else { - if (!(prs->flags & JS_PROP_CONFIGURABLE)) { - if ((flags & JS_PROP_HAS_GET) && - new_getter != pr->u.getset.getter) { - goto not_configurable; - } - if ((flags & JS_PROP_HAS_SET) && - new_setter != pr->u.getset.setter) { - goto not_configurable; - } - } - } - if (flags & JS_PROP_HAS_GET) { - if (pr->u.getset.getter) - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); - if (new_getter) - JS_DupValue(ctx, getter); - pr->u.getset.getter = new_getter; - } - if (flags & JS_PROP_HAS_SET) { - if (pr->u.getset.setter) - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); - if (new_setter) - JS_DupValue(ctx, setter); - pr->u.getset.setter = new_setter; - } - } else { - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - /* convert to data descriptor */ - if (js_shape_prepare_update(ctx, p, &prs)) - return -1; - if (pr->u.getset.getter) - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); - if (pr->u.getset.setter) - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); - prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE); - pr->u.value = JS_UNDEFINED; - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - /* Note: JS_PROP_VARREF is always writable */ - } else { - if ((prs->flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0 && - (flags & JS_PROP_HAS_VALUE)) { - if (!js_same_value(ctx, val, pr->u.value)) { - goto not_configurable; - } else { - return TRUE; - } - } - } - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - if (flags & JS_PROP_HAS_VALUE) { - if (p->class_id == JS_CLASS_MODULE_NS) { - /* JS_PROP_WRITABLE is always true for variable - references, but they are write protected in module name - spaces. */ - if (!js_same_value(ctx, val, *pr->u.var_ref->pvalue)) - goto not_configurable; - } else { - /* update the reference */ - set_value(ctx, pr->u.var_ref->pvalue, - JS_DupValue(ctx, val)); - } - } - /* if writable is set to false, no longer a - reference (for mapped arguments) */ - if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == JS_PROP_HAS_WRITABLE) { - JSValue val1; - if (p->class_id == JS_CLASS_MODULE_NS) { - return JS_ThrowTypeErrorOrFalse(ctx, flags, "module namespace properties have writable = false"); - } - if (js_shape_prepare_update(ctx, p, &prs)) - return -1; - val1 = JS_DupValue(ctx, *pr->u.var_ref->pvalue); - free_var_ref(ctx->rt, pr->u.var_ref); - pr->u.value = val1; - prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE); - } - } else if (prs->flags & JS_PROP_LENGTH) { - if (flags & JS_PROP_HAS_VALUE) { - /* Note: no JS code is executable because - 'val' is guaranted to be a Uint32 */ - res = set_array_length(ctx, p, JS_DupValue(ctx, val), - flags); - } else { - res = TRUE; - } - /* still need to reset the writable flag if - needed. The JS_PROP_LENGTH is kept because the - Uint32 test is still done if the length - property is read-only. */ - if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == - JS_PROP_HAS_WRITABLE) { - prs = get_shape_prop(p->shape); - if (js_update_property_flags(ctx, p, &prs, - prs->flags & ~JS_PROP_WRITABLE)) - return -1; - } - return res; - } else { - if (flags & JS_PROP_HAS_VALUE) { - JS_FreeValue(ctx, pr->u.value); - pr->u.value = JS_DupValue(ctx, val); - } - if (flags & JS_PROP_HAS_WRITABLE) { - if (js_update_property_flags(ctx, p, &prs, - (prs->flags & ~JS_PROP_WRITABLE) | - (flags & JS_PROP_WRITABLE))) - return -1; - } - } - } - } - mask = 0; - if (flags & JS_PROP_HAS_CONFIGURABLE) - mask |= JS_PROP_CONFIGURABLE; - if (flags & JS_PROP_HAS_ENUMERABLE) - mask |= JS_PROP_ENUMERABLE; - if (js_update_property_flags(ctx, p, &prs, - (prs->flags & ~mask) | (flags & mask))) - return -1; - return TRUE; - } - - /* handle modification of fast array elements */ - if (p->fast_array) { - uint32_t idx; - uint32_t prop_flags; - if (p->class_id == JS_CLASS_ARRAY) { - if (__JS_AtomIsTaggedInt(prop)) { - idx = __JS_AtomToUInt32(prop); - if (idx < p->u.array.count) { - prop_flags = get_prop_flags(flags, JS_PROP_C_W_E); - if (prop_flags != JS_PROP_C_W_E) - goto convert_to_slow_array; - if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { - convert_to_slow_array: - if (convert_fast_array_to_array(ctx, p)) - return -1; - else - goto redo_prop_update; - } - if (flags & JS_PROP_HAS_VALUE) { - set_value(ctx, &p->u.array.u.values[idx], JS_DupValue(ctx, val)); - } - return TRUE; - } - } - } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && - p->class_id <= JS_CLASS_FLOAT64_ARRAY) { - JSValue num; - int ret; - - if (!__JS_AtomIsTaggedInt(prop)) { - /* slow path with to handle all numeric indexes */ - num = JS_AtomIsNumericIndex1(ctx, prop); - if (JS_IsUndefined(num)) - goto typed_array_done; - if (JS_IsException(num)) - return -1; - ret = JS_NumberIsInteger(ctx, num); - if (ret < 0) { - JS_FreeValue(ctx, num); - return -1; - } - if (!ret) { - JS_FreeValue(ctx, num); - return JS_ThrowTypeErrorOrFalse(ctx, flags, "non integer index in typed array"); - } - ret = JS_NumberIsNegativeOrMinusZero(ctx, num); - JS_FreeValue(ctx, num); - if (ret) { - return JS_ThrowTypeErrorOrFalse(ctx, flags, "negative index in typed array"); - } - if (!__JS_AtomIsTaggedInt(prop)) - goto typed_array_oob; - } - idx = __JS_AtomToUInt32(prop); - /* if the typed array is detached, p->u.array.count = 0 */ - if (idx >= p->u.array.count) { - typed_array_oob: - return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound index in typed array"); - } - prop_flags = get_prop_flags(flags, JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET) || - prop_flags != (JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE)) { - return JS_ThrowTypeErrorOrFalse(ctx, flags, "invalid descriptor flags"); - } - if (flags & JS_PROP_HAS_VALUE) { - return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), JS_DupValue(ctx, val), flags); - } - return TRUE; - typed_array_done: ; - } - } - - return JS_CreateProperty(ctx, p, prop, val, getter, setter, flags); -} - -static int JS_DefineAutoInitProperty(JSContext *ctx, JSValueConst this_obj, - JSAtom prop, JSAutoInitIDEnum id, - void *opaque, int flags) -{ - JSObject *p; - JSProperty *pr; - - if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT) - return FALSE; - - p = JS_VALUE_GET_OBJ(this_obj); - - if (find_own_property(&pr, p, prop)) { - /* property already exists */ - abort(); - return FALSE; - } - - /* Specialized CreateProperty */ - pr = add_property(ctx, p, prop, (flags & JS_PROP_C_W_E) | JS_PROP_AUTOINIT); - if (unlikely(!pr)) - return -1; - pr->u.init.realm_and_id = (uintptr_t)JS_DupContext(ctx); - assert((pr->u.init.realm_and_id & 3) == 0); - assert(id <= 3); - pr->u.init.realm_and_id |= id; - pr->u.init.opaque = opaque; - return TRUE; -} - -/* shortcut to add or redefine a new property value */ -int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj, - JSAtom prop, JSValue val, int flags) -{ - int ret; - ret = JS_DefineProperty(ctx, this_obj, prop, val, JS_UNDEFINED, JS_UNDEFINED, - flags | JS_PROP_HAS_VALUE | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE); - JS_FreeValue(ctx, val); - return ret; -} - -int JS_DefinePropertyValueValue(JSContext *ctx, JSValueConst this_obj, - JSValue prop, JSValue val, int flags) -{ - JSAtom atom; - int ret; - atom = JS_ValueToAtom(ctx, prop); - JS_FreeValue(ctx, prop); - if (unlikely(atom == JS_ATOM_NULL)) { - JS_FreeValue(ctx, val); - return -1; - } - ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags); - JS_FreeAtom(ctx, atom); - return ret; -} - -int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj, - uint32_t idx, JSValue val, int flags) -{ - return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewUint32(ctx, idx), - val, flags); -} - -int JS_DefinePropertyValueInt64(JSContext *ctx, JSValueConst this_obj, - int64_t idx, JSValue val, int flags) -{ - return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx), - val, flags); -} - -int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj, - const char *prop, JSValue val, int flags) -{ - JSAtom atom; - int ret; - atom = JS_NewAtom(ctx, prop); - ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags); - JS_FreeAtom(ctx, atom); - return ret; -} - -/* shortcut to add getter & setter */ -int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj, - JSAtom prop, JSValue getter, JSValue setter, - int flags) -{ - int ret; - ret = JS_DefineProperty(ctx, this_obj, prop, JS_UNDEFINED, getter, setter, - flags | JS_PROP_HAS_GET | JS_PROP_HAS_SET | - JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE); - JS_FreeValue(ctx, getter); - JS_FreeValue(ctx, setter); - return ret; -} - -static int JS_CreateDataPropertyUint32(JSContext *ctx, JSValueConst this_obj, - int64_t idx, JSValue val, int flags) -{ - return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx), - val, flags | JS_PROP_CONFIGURABLE | - JS_PROP_ENUMERABLE | JS_PROP_WRITABLE); -} - - -/* return TRUE if 'obj' has a non empty 'name' string */ -static BOOL js_object_has_name(JSContext *ctx, JSValueConst obj) -{ - JSProperty *pr; - JSShapeProperty *prs; - JSValueConst val; - JSString *p; - - prs = find_own_property(&pr, JS_VALUE_GET_OBJ(obj), JS_ATOM_name); - if (!prs) - return FALSE; - if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL) - return TRUE; - val = pr->u.value; - if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING) - return TRUE; - p = JS_VALUE_GET_STRING(val); - return (p->len != 0); -} - -static int JS_DefineObjectName(JSContext *ctx, JSValueConst obj, - JSAtom name, int flags) -{ - if (name != JS_ATOM_NULL - && JS_IsObject(obj) - && !js_object_has_name(ctx, obj) - && JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, JS_AtomToString(ctx, name), flags) < 0) { - return -1; - } - return 0; -} - -static int JS_DefineObjectNameComputed(JSContext *ctx, JSValueConst obj, - JSValueConst str, int flags) -{ - if (JS_IsObject(obj) && - !js_object_has_name(ctx, obj)) { - JSAtom prop; - JSValue name_str; - prop = JS_ValueToAtom(ctx, str); - if (prop == JS_ATOM_NULL) - return -1; - name_str = js_get_function_name(ctx, prop); - JS_FreeAtom(ctx, prop); - if (JS_IsException(name_str)) - return -1; - if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, name_str, flags) < 0) - return -1; - } - return 0; -} - -#define DEFINE_GLOBAL_LEX_VAR (1 << 7) -#define DEFINE_GLOBAL_FUNC_VAR (1 << 6) - -static JSValue JS_ThrowSyntaxErrorVarRedeclaration(JSContext *ctx, JSAtom prop) -{ - return JS_ThrowSyntaxErrorAtom(ctx, "redeclaration of '%s'", prop); -} - -/* flags is 0, DEFINE_GLOBAL_LEX_VAR or DEFINE_GLOBAL_FUNC_VAR */ -/* XXX: could support exotic global object. */ -static int JS_CheckDefineGlobalVar(JSContext *ctx, JSAtom prop, int flags) -{ - JSObject *p; - JSShapeProperty *prs; - - p = JS_VALUE_GET_OBJ(ctx->global_obj); - prs = find_own_property1(p, prop); - /* XXX: should handle JS_PROP_AUTOINIT */ - if (flags & DEFINE_GLOBAL_LEX_VAR) { - if (prs && !(prs->flags & JS_PROP_CONFIGURABLE)) - goto fail_redeclaration; - } else { - if (!prs && !p->extensible) - goto define_error; - if (flags & DEFINE_GLOBAL_FUNC_VAR) { - if (prs) { - if (!(prs->flags & JS_PROP_CONFIGURABLE) && - ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET || - ((prs->flags & (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)) != - (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)))) { - define_error: - JS_ThrowTypeErrorAtom(ctx, "cannot define variable '%s'", - prop); - return -1; - } - } - } - } - /* check if there already is a lexical declaration */ - p = JS_VALUE_GET_OBJ(ctx->global_var_obj); - prs = find_own_property1(p, prop); - if (prs) { - fail_redeclaration: - JS_ThrowSyntaxErrorVarRedeclaration(ctx, prop); - return -1; - } - return 0; -} - -/* def_flags is (0, DEFINE_GLOBAL_LEX_VAR) | - JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE */ -/* XXX: could support exotic global object. */ -static int JS_DefineGlobalVar(JSContext *ctx, JSAtom prop, int def_flags) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - JSValue val; - int flags; - - if (def_flags & DEFINE_GLOBAL_LEX_VAR) { - p = JS_VALUE_GET_OBJ(ctx->global_var_obj); - flags = JS_PROP_ENUMERABLE | (def_flags & JS_PROP_WRITABLE) | - JS_PROP_CONFIGURABLE; - val = JS_UNINITIALIZED; - } else { - p = JS_VALUE_GET_OBJ(ctx->global_obj); - flags = JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | - (def_flags & JS_PROP_CONFIGURABLE); - val = JS_UNDEFINED; - } - prs = find_own_property1(p, prop); - if (prs) - return 0; - if (!p->extensible) - return 0; - pr = add_property(ctx, p, prop, flags); - if (unlikely(!pr)) - return -1; - pr->u.value = val; - return 0; -} - -/* 'def_flags' is 0 or JS_PROP_CONFIGURABLE. */ -/* XXX: could support exotic global object. */ -static int JS_DefineGlobalFunction(JSContext *ctx, JSAtom prop, - JSValueConst func, int def_flags) -{ - - JSObject *p; - JSShapeProperty *prs; - int flags; - - p = JS_VALUE_GET_OBJ(ctx->global_obj); - prs = find_own_property1(p, prop); - flags = JS_PROP_HAS_VALUE | JS_PROP_THROW; - if (!prs || (prs->flags & JS_PROP_CONFIGURABLE)) { - flags |= JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | def_flags | - JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE; - } - if (JS_DefineProperty(ctx, ctx->global_obj, prop, func, - JS_UNDEFINED, JS_UNDEFINED, flags) < 0) - return -1; - return 0; -} - -static JSValue JS_GetGlobalVar(JSContext *ctx, JSAtom prop, - BOOL throw_ref_error) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - - /* no exotic behavior is possible in global_var_obj */ - p = JS_VALUE_GET_OBJ(ctx->global_var_obj); - prs = find_own_property(&pr, p, prop); - if (prs) { - /* XXX: should handle JS_PROP_TMASK properties */ - if (unlikely(JS_IsUninitialized(pr->u.value))) - return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return JS_DupValue(ctx, pr->u.value); - } - return JS_GetPropertyInternal(ctx, ctx->global_obj, prop, - ctx->global_obj, throw_ref_error); -} - -/* construct a reference to a global variable */ -static int JS_GetGlobalVarRef(JSContext *ctx, JSAtom prop, JSValue *sp) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - - /* no exotic behavior is possible in global_var_obj */ - p = JS_VALUE_GET_OBJ(ctx->global_var_obj); - prs = find_own_property(&pr, p, prop); - if (prs) { - /* XXX: should handle JS_PROP_AUTOINIT properties? */ - /* XXX: conformance: do these tests in - OP_put_var_ref/OP_get_var_ref ? */ - if (unlikely(JS_IsUninitialized(pr->u.value))) { - JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return -1; - } - if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) { - return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop); - } - sp[0] = JS_DupValue(ctx, ctx->global_var_obj); - } else { - int ret; - ret = JS_HasProperty(ctx, ctx->global_obj, prop); - if (ret < 0) - return -1; - if (ret) { - sp[0] = JS_DupValue(ctx, ctx->global_obj); - } else { - sp[0] = JS_UNDEFINED; - } - } - sp[1] = JS_AtomToValue(ctx, prop); - return 0; -} - -/* use for strict variable access: test if the variable exists */ -static int JS_CheckGlobalVar(JSContext *ctx, JSAtom prop) -{ - JSObject *p; - JSShapeProperty *prs; - int ret; - - /* no exotic behavior is possible in global_var_obj */ - p = JS_VALUE_GET_OBJ(ctx->global_var_obj); - prs = find_own_property1(p, prop); - if (prs) { - ret = TRUE; - } else { - ret = JS_HasProperty(ctx, ctx->global_obj, prop); - if (ret < 0) - return -1; - } - return ret; -} - -/* flag = 0: normal variable write - flag = 1: initialize lexical variable - flag = 2: normal variable write, strict check was done before -*/ -static int JS_SetGlobalVar(JSContext *ctx, JSAtom prop, JSValue val, - int flag) -{ - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - int flags; - - /* no exotic behavior is possible in global_var_obj */ - p = JS_VALUE_GET_OBJ(ctx->global_var_obj); - prs = find_own_property(&pr, p, prop); - if (prs) { - /* XXX: should handle JS_PROP_AUTOINIT properties? */ - if (flag != 1) { - if (unlikely(JS_IsUninitialized(pr->u.value))) { - JS_FreeValue(ctx, val); - JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); - return -1; - } - if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop); - } - } - set_value(ctx, &pr->u.value, val); - return 0; - } - flags = JS_PROP_THROW_STRICT; - if (is_strict_mode(ctx)) - flags |= JS_PROP_NO_ADD; - return JS_SetPropertyInternal(ctx, ctx->global_obj, prop, val, ctx->global_obj, flags); -} - -/* return -1, FALSE or TRUE. return FALSE if not configurable or - invalid object. return -1 in case of exception. - flags can be 0, JS_PROP_THROW or JS_PROP_THROW_STRICT */ -int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags) -{ - JSValue obj1; - JSObject *p; - int res; - - obj1 = JS_ToObject(ctx, obj); - if (JS_IsException(obj1)) - return -1; - p = JS_VALUE_GET_OBJ(obj1); - res = delete_property(ctx, p, prop); - JS_FreeValue(ctx, obj1); - if (res != FALSE) - return res; - if ((flags & JS_PROP_THROW) || - ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { - JS_ThrowTypeError(ctx, "could not delete property"); - return -1; - } - return FALSE; -} - -int JS_DeletePropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, int flags) -{ - JSAtom prop; - int res; - - if ((uint64_t)idx <= JS_ATOM_MAX_INT) { - /* fast path for fast arrays */ - return JS_DeleteProperty(ctx, obj, __JS_AtomFromUInt32(idx), flags); - } - prop = JS_NewAtomInt64(ctx, idx); - if (prop == JS_ATOM_NULL) - return -1; - res = JS_DeleteProperty(ctx, obj, prop, flags); - JS_FreeAtom(ctx, prop); - return res; -} - -BOOL JS_IsFunction(JSContext *ctx, JSValueConst val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(val); - switch(p->class_id) { - case JS_CLASS_BYTECODE_FUNCTION: - return TRUE; - case JS_CLASS_PROXY: - return p->u.proxy_data->is_func; - default: - return (ctx->rt->class_array[p->class_id].call != NULL); - } -} - -BOOL JS_IsCFunction(JSContext *ctx, JSValueConst val, JSCFunction *func, int magic) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(val); - if (p->class_id == JS_CLASS_C_FUNCTION) - return (p->u.cfunc.c_function.generic == func && p->u.cfunc.magic == magic); - else - return FALSE; -} - -BOOL JS_IsConstructor(JSContext *ctx, JSValueConst val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(val); - return p->is_constructor; -} - -BOOL JS_SetConstructorBit(JSContext *ctx, JSValueConst func_obj, BOOL val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(func_obj); - p->is_constructor = val; - return TRUE; -} - -BOOL JS_IsError(JSContext *ctx, JSValueConst val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(val); - return (p->class_id == JS_CLASS_ERROR); -} - -/* used to avoid catching interrupt exceptions */ -BOOL JS_IsUncatchableError(JSContext *ctx, JSValueConst val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(val); - return p->class_id == JS_CLASS_ERROR && p->is_uncatchable_error; -} - -void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return; - p = JS_VALUE_GET_OBJ(val); - if (p->class_id == JS_CLASS_ERROR) - p->is_uncatchable_error = flag; -} - -void JS_ResetUncatchableError(JSContext *ctx) -{ - JS_SetUncatchableError(ctx, ctx->rt->current_exception, FALSE); -} - -void JS_SetOpaque(JSValue obj, void *opaque) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - p = JS_VALUE_GET_OBJ(obj); - p->u.opaque = opaque; - } -} - -/* return NULL if not an object of class class_id */ -void *JS_GetOpaque(JSValueConst obj, JSClassID class_id) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) - return NULL; - p = JS_VALUE_GET_OBJ(obj); - if (p->class_id != class_id) - return NULL; - return p->u.opaque; -} - -void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id) -{ - void *p = JS_GetOpaque(obj, class_id); - if (unlikely(!p)) { - JS_ThrowTypeErrorInvalidClass(ctx, class_id); - } - return p; -} - -#define HINT_STRING 0 -#define HINT_NUMBER 1 -#define HINT_NONE 2 -/* don't try Symbol.toPrimitive */ -#define HINT_FORCE_ORDINARY (1 << 4) - -static JSValue JS_ToPrimitiveFree(JSContext *ctx, JSValue val, int hint) -{ - int i; - BOOL force_ordinary; - - JSAtom method_name; - JSValue method, ret; - if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) - return val; - force_ordinary = hint & HINT_FORCE_ORDINARY; - hint &= ~HINT_FORCE_ORDINARY; - if (!force_ordinary) { - method = JS_GetProperty(ctx, val, JS_ATOM_Symbol_toPrimitive); - if (JS_IsException(method)) - goto exception; - /* ECMA says *If exoticToPrim is not undefined* but tests in - test262 use null as a non callable converter */ - if (!JS_IsUndefined(method) && !JS_IsNull(method)) { - JSAtom atom; - JSValue arg; - switch(hint) { - case HINT_STRING: - atom = JS_ATOM_string; - break; - case HINT_NUMBER: - atom = JS_ATOM_number; - break; - default: - case HINT_NONE: - atom = JS_ATOM_default; - break; - } - arg = JS_AtomToString(ctx, atom); - ret = JS_CallFree(ctx, method, val, 1, (JSValueConst *)&arg); - JS_FreeValue(ctx, arg); - if (JS_IsException(ret)) - goto exception; - JS_FreeValue(ctx, val); - if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) - return ret; - JS_FreeValue(ctx, ret); - return JS_ThrowTypeError(ctx, "toPrimitive"); - } - } - if (hint != HINT_STRING) - hint = HINT_NUMBER; - for(i = 0; i < 2; i++) { - if ((i ^ hint) == 0) { - method_name = JS_ATOM_toString; - } else { - method_name = JS_ATOM_valueOf; - } - method = JS_GetProperty(ctx, val, method_name); - if (JS_IsException(method)) - goto exception; - if (JS_IsFunction(ctx, method)) { - ret = JS_CallFree(ctx, method, val, 0, NULL); - if (JS_IsException(ret)) - goto exception; - if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) { - JS_FreeValue(ctx, val); - return ret; - } - JS_FreeValue(ctx, ret); - } else { - JS_FreeValue(ctx, method); - } - } - JS_ThrowTypeError(ctx, "toPrimitive"); -exception: - JS_FreeValue(ctx, val); - return JS_EXCEPTION; -} - -static JSValue JS_ToPrimitive(JSContext *ctx, JSValueConst val, int hint) -{ - return JS_ToPrimitiveFree(ctx, JS_DupValue(ctx, val), hint); -} - -void JS_SetIsHTMLDDA(JSContext *ctx, JSValueConst obj) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) - return; - p = JS_VALUE_GET_OBJ(obj); - p->is_HTMLDDA = TRUE; -} - -static inline BOOL JS_IsHTMLDDA(JSContext *ctx, JSValueConst obj) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) - return FALSE; - p = JS_VALUE_GET_OBJ(obj); - return p->is_HTMLDDA; -} - -static int JS_ToBoolFree(JSContext *ctx, JSValue val) -{ - uint32_t tag = JS_VALUE_GET_TAG(val); - switch(tag) { - case JS_TAG_INT: - return JS_VALUE_GET_INT(val) != 0; - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - return JS_VALUE_GET_INT(val); - case JS_TAG_EXCEPTION: - return -1; - case JS_TAG_STRING: - { - BOOL ret = JS_VALUE_GET_STRING(val)->len != 0; - JS_FreeValue(ctx, val); - return ret; - } - case JS_TAG_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: -#endif - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - BOOL ret; - ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN; - JS_FreeValue(ctx, val); - return ret; - } -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_DECIMAL: - { - JSBigDecimal *p = JS_VALUE_GET_PTR(val); - BOOL ret; - ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN; - JS_FreeValue(ctx, val); - return ret; - } -#endif - case JS_TAG_OBJECT: - { - JSObject *p = JS_VALUE_GET_OBJ(val); - BOOL ret; - ret = !p->is_HTMLDDA; - JS_FreeValue(ctx, val); - return ret; - } - break; - default: - if (JS_TAG_IS_FLOAT64(tag)) { - double d = JS_VALUE_GET_FLOAT64(val); - return !isnan(d) && d != 0; - } else { - JS_FreeValue(ctx, val); - return TRUE; - } - } -} - -int JS_ToBool(JSContext *ctx, JSValueConst val) -{ - return JS_ToBoolFree(ctx, JS_DupValue(ctx, val)); -} - -static int skip_spaces(const char *pc) -{ - const uint8_t *p, *p_next, *p_start; - uint32_t c; - - p = p_start = (const uint8_t *)pc; - for (;;) { - c = *p; - if (c < 128) { - if (!((c >= 0x09 && c <= 0x0d) || (c == 0x20))) - break; - p++; - } else { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next); - if (!lre_is_space(c)) - break; - p = p_next; - } - } - return p - p_start; -} - -static inline int to_digit(int c) -{ - if (c >= '0' && c <= '9') - return c - '0'; - else if (c >= 'A' && c <= 'Z') - return c - 'A' + 10; - else if (c >= 'a' && c <= 'z') - return c - 'a' + 10; - else - return 36; -} - -/* XXX: remove */ -static double js_strtod(const char *str, int radix, BOOL is_float) -{ - double d; - int c; - - if (!is_float || radix != 10) { - const char *p = str; - uint64_t n_max, n; - int int_exp, is_neg; - - is_neg = 0; - if (*p == '-') { - is_neg = 1; - p++; - } - - /* skip leading zeros */ - while (*p == '0') - p++; - n = 0; - if (radix == 10) - n_max = ((uint64_t)-1 - 9) / 10; /* most common case */ - else - n_max = ((uint64_t)-1 - (radix - 1)) / radix; - /* XXX: could be more precise */ - int_exp = 0; - while (*p != '\0') { - c = to_digit((uint8_t)*p); - if (c >= radix) - break; - if (n <= n_max) { - n = n * radix + c; - } else { - if (radix == 10) - goto strtod_case; - int_exp++; - } - p++; - } - d = n; - if (int_exp != 0) { - d *= pow(radix, int_exp); - } - if (is_neg) - d = -d; - } else { - strtod_case: - d = strtod(str, NULL); - } - return d; -} - -#define ATOD_INT_ONLY (1 << 0) -/* accept Oo and Ob prefixes in addition to 0x prefix if radix = 0 */ -#define ATOD_ACCEPT_BIN_OCT (1 << 2) -/* accept O prefix as octal if radix == 0 and properly formed (Annex B) */ -#define ATOD_ACCEPT_LEGACY_OCTAL (1 << 4) -/* accept _ between digits as a digit separator */ -#define ATOD_ACCEPT_UNDERSCORES (1 << 5) -/* allow a suffix to override the type */ -#define ATOD_ACCEPT_SUFFIX (1 << 6) -/* default type */ -#define ATOD_TYPE_MASK (3 << 7) -#define ATOD_TYPE_FLOAT64 (0 << 7) -#define ATOD_TYPE_BIG_INT (1 << 7) -#ifdef CONFIG_BIGNUM -#define ATOD_TYPE_BIG_FLOAT (2 << 7) -#define ATOD_TYPE_BIG_DECIMAL (3 << 7) -/* assume bigint mode: floats are parsed as integers if no decimal - point nor exponent */ -#define ATOD_MODE_BIGINT (1 << 9) -#endif -/* accept -0x1 */ -#define ATOD_ACCEPT_PREFIX_AFTER_SIGN (1 << 10) - -static JSValue js_string_to_bigint(JSContext *ctx, const char *buf, - int radix, int flags, slimb_t *pexponent) -{ - bf_t a_s, *a = &a_s; - int ret; - JSValue val; - val = JS_NewBigInt(ctx); - if (JS_IsException(val)) - return val; - a = JS_GetBigInt(val); - ret = bf_atof(a, buf, NULL, radix, BF_PREC_INF, BF_RNDZ); - if (ret & BF_ST_MEM_ERROR) { - JS_FreeValue(ctx, val); - return JS_ThrowOutOfMemory(ctx); - } -#ifdef CONFIG_BIGNUM - val = JS_CompactBigInt1(ctx, val, (flags & ATOD_MODE_BIGINT) != 0); -#else - val = JS_CompactBigInt1(ctx, val, FALSE); -#endif - return val; -} - -#ifdef CONFIG_BIGNUM -static JSValue js_string_to_bigfloat(JSContext *ctx, const char *buf, - int radix, int flags, slimb_t *pexponent) -{ - bf_t *a; - int ret; - JSValue val; - - val = JS_NewBigFloat(ctx); - if (JS_IsException(val)) - return val; - a = JS_GetBigFloat(val); - if (flags & ATOD_ACCEPT_SUFFIX) { - /* return the exponent to get infinite precision */ - ret = bf_atof2(a, pexponent, buf, NULL, radix, BF_PREC_INF, - BF_RNDZ | BF_ATOF_EXPONENT); - } else { - ret = bf_atof(a, buf, NULL, radix, ctx->fp_env.prec, - ctx->fp_env.flags); - } - if (ret & BF_ST_MEM_ERROR) { - JS_FreeValue(ctx, val); - return JS_ThrowOutOfMemory(ctx); - } - return val; -} - -static JSValue js_string_to_bigdecimal(JSContext *ctx, const char *buf, - int radix, int flags, slimb_t *pexponent) -{ - bfdec_t *a; - int ret; - JSValue val; - - val = JS_NewBigDecimal(ctx); - if (JS_IsException(val)) - return val; - a = JS_GetBigDecimal(val); - ret = bfdec_atof(a, buf, NULL, BF_PREC_INF, - BF_RNDZ | BF_ATOF_NO_NAN_INF); - if (ret & BF_ST_MEM_ERROR) { - JS_FreeValue(ctx, val); - return JS_ThrowOutOfMemory(ctx); - } - return val; -} -#endif - -/* return an exception in case of memory error. Return JS_NAN if - invalid syntax */ -#ifdef CONFIG_BIGNUM -static JSValue js_atof2(JSContext *ctx, const char *str, const char **pp, - int radix, int flags, slimb_t *pexponent) -#else -static JSValue js_atof(JSContext *ctx, const char *str, const char **pp, - int radix, int flags) -#endif -{ - const char *p, *p_start; - int sep, is_neg; - BOOL is_float, has_legacy_octal; - int atod_type = flags & ATOD_TYPE_MASK; - char buf1[64], *buf; - int i, j, len; - BOOL buf_allocated = FALSE; - JSValue val; - - /* optional separator between digits */ - sep = (flags & ATOD_ACCEPT_UNDERSCORES) ? '_' : 256; - has_legacy_octal = FALSE; - - p = str; - p_start = p; - is_neg = 0; - if (p[0] == '+') { - p++; - p_start++; - if (!(flags & ATOD_ACCEPT_PREFIX_AFTER_SIGN)) - goto no_radix_prefix; - } else if (p[0] == '-') { - p++; - p_start++; - is_neg = 1; - if (!(flags & ATOD_ACCEPT_PREFIX_AFTER_SIGN)) - goto no_radix_prefix; - } - if (p[0] == '0') { - if ((p[1] == 'x' || p[1] == 'X') && - (radix == 0 || radix == 16)) { - p += 2; - radix = 16; - } else if ((p[1] == 'o' || p[1] == 'O') && - radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) { - p += 2; - radix = 8; - } else if ((p[1] == 'b' || p[1] == 'B') && - radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) { - p += 2; - radix = 2; - } else if ((p[1] >= '0' && p[1] <= '9') && - radix == 0 && (flags & ATOD_ACCEPT_LEGACY_OCTAL)) { - int i; - has_legacy_octal = TRUE; - sep = 256; - for (i = 1; (p[i] >= '0' && p[i] <= '7'); i++) - continue; - if (p[i] == '8' || p[i] == '9') - goto no_prefix; - p += 1; - radix = 8; - } else { - goto no_prefix; - } - /* there must be a digit after the prefix */ - if (to_digit((uint8_t)*p) >= radix) - goto fail; - no_prefix: ; - } else { - no_radix_prefix: - if (!(flags & ATOD_INT_ONLY) && - (atod_type == ATOD_TYPE_FLOAT64 -#ifdef CONFIG_BIGNUM - || atod_type == ATOD_TYPE_BIG_FLOAT -#endif - ) && - strstart(p, "Infinity", &p)) { -#ifdef CONFIG_BIGNUM - if (atod_type == ATOD_TYPE_BIG_FLOAT) { - bf_t *a; - val = JS_NewBigFloat(ctx); - if (JS_IsException(val)) - goto done; - a = JS_GetBigFloat(val); - bf_set_inf(a, is_neg); - } else -#endif - { - double d = 1.0 / 0.0; - if (is_neg) - d = -d; - val = JS_NewFloat64(ctx, d); - } - goto done; - } - } - if (radix == 0) - radix = 10; - is_float = FALSE; - p_start = p; - while (to_digit((uint8_t)*p) < radix - || (*p == sep && (radix != 10 || - p != p_start + 1 || p[-1] != '0') && - to_digit((uint8_t)p[1]) < radix)) { - p++; - } - if (!(flags & ATOD_INT_ONLY)) { - if (*p == '.' && (p > p_start || to_digit((uint8_t)p[1]) < radix)) { - is_float = TRUE; - p++; - if (*p == sep) - goto fail; - while (to_digit((uint8_t)*p) < radix || - (*p == sep && to_digit((uint8_t)p[1]) < radix)) - p++; - } - if (p > p_start && - (((*p == 'e' || *p == 'E') && radix == 10) || - ((*p == 'p' || *p == 'P') && (radix == 2 || radix == 8 || radix == 16)))) { - const char *p1 = p + 1; - is_float = TRUE; - if (*p1 == '+') { - p1++; - } else if (*p1 == '-') { - p1++; - } - if (is_digit((uint8_t)*p1)) { - p = p1 + 1; - while (is_digit((uint8_t)*p) || (*p == sep && is_digit((uint8_t)p[1]))) - p++; - } - } - } - if (p == p_start) - goto fail; - - buf = buf1; - buf_allocated = FALSE; - len = p - p_start; - if (unlikely((len + 2) > sizeof(buf1))) { - buf = js_malloc_rt(ctx->rt, len + 2); /* no exception raised */ - if (!buf) - goto mem_error; - buf_allocated = TRUE; - } - /* remove the separators and the radix prefixes */ - j = 0; - if (is_neg) - buf[j++] = '-'; - for (i = 0; i < len; i++) { - if (p_start[i] != '_') - buf[j++] = p_start[i]; - } - buf[j] = '\0'; - - if (flags & ATOD_ACCEPT_SUFFIX) { - if (*p == 'n') { - p++; - atod_type = ATOD_TYPE_BIG_INT; - } else -#ifdef CONFIG_BIGNUM - if (*p == 'l') { - p++; - atod_type = ATOD_TYPE_BIG_FLOAT; - } else if (*p == 'm') { - p++; - atod_type = ATOD_TYPE_BIG_DECIMAL; - } else if (flags & ATOD_MODE_BIGINT) { - if (!is_float) - atod_type = ATOD_TYPE_BIG_INT; - if (has_legacy_octal) - goto fail; - } else -#endif - { - if (is_float && radix != 10) - goto fail; - } - } else { - if (atod_type == ATOD_TYPE_FLOAT64) { -#ifdef CONFIG_BIGNUM - if (flags & ATOD_MODE_BIGINT) { - if (!is_float) - atod_type = ATOD_TYPE_BIG_INT; - if (has_legacy_octal) - goto fail; - } else -#endif - { - if (is_float && radix != 10) - goto fail; - } - } - } - - switch(atod_type) { - case ATOD_TYPE_FLOAT64: - { - double d; - d = js_strtod(buf, radix, is_float); - /* return int or float64 */ - val = JS_NewFloat64(ctx, d); - } - break; - case ATOD_TYPE_BIG_INT: - if (has_legacy_octal || is_float) - goto fail; - val = ctx->rt->bigint_ops.from_string(ctx, buf, radix, flags, NULL); - break; -#ifdef CONFIG_BIGNUM - case ATOD_TYPE_BIG_FLOAT: - if (has_legacy_octal) - goto fail; - val = ctx->rt->bigfloat_ops.from_string(ctx, buf, radix, flags, - pexponent); - break; - case ATOD_TYPE_BIG_DECIMAL: - if (radix != 10) - goto fail; - val = ctx->rt->bigdecimal_ops.from_string(ctx, buf, radix, flags, NULL); - break; -#endif - default: - abort(); - } - -done: - if (buf_allocated) - js_free_rt(ctx->rt, buf); - if (pp) - *pp = p; - return val; - fail: - val = JS_NAN; - goto done; - mem_error: - val = JS_ThrowOutOfMemory(ctx); - goto done; -} - -#ifdef CONFIG_BIGNUM -static JSValue js_atof(JSContext *ctx, const char *str, const char **pp, - int radix, int flags) -{ - return js_atof2(ctx, str, pp, radix, flags, NULL); -} -#endif - -typedef enum JSToNumberHintEnum { - TON_FLAG_NUMBER, - TON_FLAG_NUMERIC, -} JSToNumberHintEnum; - -static JSValue JS_ToNumberHintFree(JSContext *ctx, JSValue val, - JSToNumberHintEnum flag) -{ - uint32_t tag; - JSValue ret; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_BIG_INT: - if (flag != TON_FLAG_NUMERIC) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeError(ctx, "cannot convert bigint to number"); - } - ret = val; - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_DECIMAL: - if (flag != TON_FLAG_NUMERIC) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeError(ctx, "cannot convert bigdecimal to number"); - } - ret = val; - break; - case JS_TAG_BIG_FLOAT: - if (flag != TON_FLAG_NUMERIC) { - JS_FreeValue(ctx, val); - return JS_ThrowTypeError(ctx, "cannot convert bigfloat to number"); - } - ret = val; - break; -#endif - case JS_TAG_FLOAT64: - case JS_TAG_INT: - case JS_TAG_EXCEPTION: - ret = val; - break; - case JS_TAG_BOOL: - case JS_TAG_NULL: - ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val)); - break; - case JS_TAG_UNDEFINED: - ret = JS_NAN; - break; - case JS_TAG_OBJECT: - val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER); - if (JS_IsException(val)) - return JS_EXCEPTION; - goto redo; - case JS_TAG_STRING: - { - const char *str; - const char *p; - size_t len; - - str = JS_ToCStringLen(ctx, &len, val); - JS_FreeValue(ctx, val); - if (!str) - return JS_EXCEPTION; - p = str; - p += skip_spaces(p); - if ((p - str) == len) { - ret = JS_NewInt32(ctx, 0); - } else { - int flags = ATOD_ACCEPT_BIN_OCT; - ret = js_atof(ctx, p, &p, 0, flags); - if (!JS_IsException(ret)) { - p += skip_spaces(p); - if ((p - str) != len) { - JS_FreeValue(ctx, ret); - ret = JS_NAN; - } - } - } - JS_FreeCString(ctx, str); - } - break; - case JS_TAG_SYMBOL: - JS_FreeValue(ctx, val); - return JS_ThrowTypeError(ctx, "cannot convert symbol to number"); - default: - JS_FreeValue(ctx, val); - ret = JS_NAN; - break; - } - return ret; -} - -static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val) -{ - return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMBER); -} - -static JSValue JS_ToNumericFree(JSContext *ctx, JSValue val) -{ - return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMERIC); -} - -static JSValue JS_ToNumeric(JSContext *ctx, JSValueConst val) -{ - return JS_ToNumericFree(ctx, JS_DupValue(ctx, val)); -} - -static __exception int __JS_ToFloat64Free(JSContext *ctx, double *pres, - JSValue val) -{ - double d; - uint32_t tag; - - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) { - *pres = JS_FLOAT64_NAN; - return -1; - } - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - d = JS_VALUE_GET_INT(val); - break; - case JS_TAG_FLOAT64: - d = JS_VALUE_GET_FLOAT64(val); - break; - case JS_TAG_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: -#endif - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - /* XXX: there can be a double rounding issue with some - primitives (such as JS_ToUint8ClampFree()), but it is - not critical to fix it. */ - bf_get_float64(&p->num, &d, BF_RNDN); - JS_FreeValue(ctx, val); - } - break; - default: - abort(); - } - *pres = d; - return 0; -} - -static inline int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val) -{ - uint32_t tag; - - tag = JS_VALUE_GET_TAG(val); - if (tag <= JS_TAG_NULL) { - *pres = JS_VALUE_GET_INT(val); - return 0; - } else if (JS_TAG_IS_FLOAT64(tag)) { - *pres = JS_VALUE_GET_FLOAT64(val); - return 0; - } else { - return __JS_ToFloat64Free(ctx, pres, val); - } -} - -int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val) -{ - return JS_ToFloat64Free(ctx, pres, JS_DupValue(ctx, val)); -} - -static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val) -{ - return JS_ToNumberFree(ctx, JS_DupValue(ctx, val)); -} - -/* same as JS_ToNumber() but return 0 in case of NaN/Undefined */ -static __maybe_unused JSValue JS_ToIntegerFree(JSContext *ctx, JSValue val) -{ - uint32_t tag; - JSValue ret; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val)); - break; - case JS_TAG_FLOAT64: - { - double d = JS_VALUE_GET_FLOAT64(val); - if (isnan(d)) { - ret = JS_NewInt32(ctx, 0); - } else { - /* convert -0 to +0 */ - d = trunc(d) + 0.0; - ret = JS_NewFloat64(ctx, d); - } - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - bf_t a_s, *a, r_s, *r = &r_s; - BOOL is_nan; - - a = JS_ToBigFloat(ctx, &a_s, val); - if (!a) { - JS_FreeValue(ctx, val); - return JS_EXCEPTION; - } - if (!bf_is_finite(a)) { - is_nan = bf_is_nan(a); - if (is_nan) - ret = JS_NewInt32(ctx, 0); - else - ret = JS_DupValue(ctx, val); - } else { - ret = JS_NewBigInt(ctx); - if (!JS_IsException(ret)) { - r = JS_GetBigInt(ret); - bf_set(r, a); - bf_rint(r, BF_RNDZ); - ret = JS_CompactBigInt(ctx, ret); - } - } - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, val); - } - break; -#endif - default: - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) - return val; - goto redo; - } - return ret; -} - -/* Note: the integer value is satured to 32 bits */ -static int JS_ToInt32SatFree(JSContext *ctx, int *pres, JSValue val) -{ - uint32_t tag; - int ret; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - ret = JS_VALUE_GET_INT(val); - break; - case JS_TAG_EXCEPTION: - *pres = 0; - return -1; - case JS_TAG_FLOAT64: - { - double d = JS_VALUE_GET_FLOAT64(val); - if (isnan(d)) { - ret = 0; - } else { - if (d < INT32_MIN) - ret = INT32_MIN; - else if (d > INT32_MAX) - ret = INT32_MAX; - else - ret = (int)d; - } - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - bf_get_int32(&ret, &p->num, 0); - JS_FreeValue(ctx, val); - } - break; -#endif - default: - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) { - *pres = 0; - return -1; - } - goto redo; - } - *pres = ret; - return 0; -} - -int JS_ToInt32Sat(JSContext *ctx, int *pres, JSValueConst val) -{ - return JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val)); -} - -int JS_ToInt32Clamp(JSContext *ctx, int *pres, JSValueConst val, - int min, int max, int min_offset) -{ - int res = JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val)); - if (res == 0) { - if (*pres < min) { - *pres += min_offset; - if (*pres < min) - *pres = min; - } else { - if (*pres > max) - *pres = max; - } - } - return res; -} - -static int JS_ToInt64SatFree(JSContext *ctx, int64_t *pres, JSValue val) -{ - uint32_t tag; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - *pres = JS_VALUE_GET_INT(val); - return 0; - case JS_TAG_EXCEPTION: - *pres = 0; - return -1; - case JS_TAG_FLOAT64: - { - double d = JS_VALUE_GET_FLOAT64(val); - if (isnan(d)) { - *pres = 0; - } else { - if (d < INT64_MIN) - *pres = INT64_MIN; - else if (d > INT64_MAX) - *pres = INT64_MAX; - else - *pres = (int64_t)d; - } - } - return 0; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - bf_get_int64(pres, &p->num, 0); - JS_FreeValue(ctx, val); - } - return 0; -#endif - default: - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) { - *pres = 0; - return -1; - } - goto redo; - } -} - -int JS_ToInt64Sat(JSContext *ctx, int64_t *pres, JSValueConst val) -{ - return JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val)); -} - -int JS_ToInt64Clamp(JSContext *ctx, int64_t *pres, JSValueConst val, - int64_t min, int64_t max, int64_t neg_offset) -{ - int res = JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val)); - if (res == 0) { - if (*pres < 0) - *pres += neg_offset; - if (*pres < min) - *pres = min; - else if (*pres > max) - *pres = max; - } - return res; -} - -/* Same as JS_ToInt32Free() but with a 64 bit result. Return (<0, 0) - in case of exception */ -static int JS_ToInt64Free(JSContext *ctx, int64_t *pres, JSValue val) -{ - uint32_t tag; - int64_t ret; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - ret = JS_VALUE_GET_INT(val); - break; - case JS_TAG_FLOAT64: - { - JSFloat64Union u; - double d; - int e; - d = JS_VALUE_GET_FLOAT64(val); - u.d = d; - /* we avoid doing fmod(x, 2^64) */ - e = (u.u64 >> 52) & 0x7ff; - if (likely(e <= (1023 + 62))) { - /* fast case */ - ret = (int64_t)d; - } else if (e <= (1023 + 62 + 53)) { - uint64_t v; - /* remainder modulo 2^64 */ - v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52); - ret = v << ((e - 1023) - 52); - /* take the sign into account */ - if (u.u64 >> 63) - ret = -ret; - } else { - ret = 0; /* also handles NaN and +inf */ - } - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - bf_get_int64(&ret, &p->num, BF_GET_INT_MOD); - JS_FreeValue(ctx, val); - } - break; -#endif - default: - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) { - *pres = 0; - return -1; - } - goto redo; - } - *pres = ret; - return 0; -} - -int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val) -{ - return JS_ToInt64Free(ctx, pres, JS_DupValue(ctx, val)); -} - -int JS_ToInt64Ext(JSContext *ctx, int64_t *pres, JSValueConst val) -{ - if (JS_IsBigInt(ctx, val)) - return JS_ToBigInt64(ctx, pres, val); - else - return JS_ToInt64(ctx, pres, val); -} - -/* return (<0, 0) in case of exception */ -static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val) -{ - uint32_t tag; - int32_t ret; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - ret = JS_VALUE_GET_INT(val); - break; - case JS_TAG_FLOAT64: - { - JSFloat64Union u; - double d; - int e; - d = JS_VALUE_GET_FLOAT64(val); - u.d = d; - /* we avoid doing fmod(x, 2^32) */ - e = (u.u64 >> 52) & 0x7ff; - if (likely(e <= (1023 + 30))) { - /* fast case */ - ret = (int32_t)d; - } else if (e <= (1023 + 30 + 53)) { - uint64_t v; - /* remainder modulo 2^32 */ - v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52); - v = v << ((e - 1023) - 52 + 32); - ret = v >> 32; - /* take the sign into account */ - if (u.u64 >> 63) - ret = -ret; - } else { - ret = 0; /* also handles NaN and +inf */ - } - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - bf_get_int32(&ret, &p->num, BF_GET_INT_MOD); - JS_FreeValue(ctx, val); - } - break; -#endif - default: - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) { - *pres = 0; - return -1; - } - goto redo; - } - *pres = ret; - return 0; -} - -int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val) -{ - return JS_ToInt32Free(ctx, pres, JS_DupValue(ctx, val)); -} - -static inline int JS_ToUint32Free(JSContext *ctx, uint32_t *pres, JSValue val) -{ - return JS_ToInt32Free(ctx, (int32_t *)pres, val); -} - -static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val) -{ - uint32_t tag; - int res; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - res = JS_VALUE_GET_INT(val); -#ifdef CONFIG_BIGNUM - int_clamp: -#endif - res = max_int(0, min_int(255, res)); - break; - case JS_TAG_FLOAT64: - { - double d = JS_VALUE_GET_FLOAT64(val); - if (isnan(d)) { - res = 0; - } else { - if (d < 0) - res = 0; - else if (d > 255) - res = 255; - else - res = lrint(d); - } - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - bf_t r_s, *r = &r_s; - bf_init(ctx->bf_ctx, r); - bf_set(r, &p->num); - bf_rint(r, BF_RNDN); - bf_get_int32(&res, r, 0); - bf_delete(r); - JS_FreeValue(ctx, val); - } - goto int_clamp; -#endif - default: - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) { - *pres = 0; - return -1; - } - goto redo; - } - *pres = res; - return 0; -} - -static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen, - JSValue val, BOOL is_array_ctor) -{ - uint32_t tag, len; - - tag = JS_VALUE_GET_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - { - int v; - v = JS_VALUE_GET_INT(val); - if (v < 0) - goto fail; - len = v; - } - break; - case JS_TAG_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: -#endif - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - bf_t a; - BOOL res; - bf_get_int32((int32_t *)&len, &p->num, BF_GET_INT_MOD); - bf_init(ctx->bf_ctx, &a); - bf_set_ui(&a, len); - res = bf_cmp_eq(&a, &p->num); - bf_delete(&a); - JS_FreeValue(ctx, val); - if (!res) - goto fail; - } - break; - default: - if (JS_TAG_IS_FLOAT64(tag)) { - double d; - d = JS_VALUE_GET_FLOAT64(val); - len = (uint32_t)d; - if (len != d) - goto fail; - } else { - uint32_t len1; - - if (is_array_ctor) { - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) - return -1; - /* cannot recurse because val is a number */ - if (JS_ToArrayLengthFree(ctx, &len, val, TRUE)) - return -1; - } else { - /* legacy behavior: must do the conversion twice and compare */ - if (JS_ToUint32(ctx, &len, val)) { - JS_FreeValue(ctx, val); - return -1; - } - val = JS_ToNumberFree(ctx, val); - if (JS_IsException(val)) - return -1; - /* cannot recurse because val is a number */ - if (JS_ToArrayLengthFree(ctx, &len1, val, FALSE)) - return -1; - if (len1 != len) { - fail: - JS_ThrowRangeError(ctx, "invalid array length"); - return -1; - } - } - } - break; - } - *plen = len; - return 0; -} - -#define MAX_SAFE_INTEGER (((int64_t)1 << 53) - 1) - -static BOOL is_safe_integer(double d) -{ - return isfinite(d) && floor(d) == d && - fabs(d) <= (double)MAX_SAFE_INTEGER; -} - -int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val) -{ - int64_t v; - if (JS_ToInt64Sat(ctx, &v, val)) - return -1; - if (v < 0 || v > MAX_SAFE_INTEGER) { - JS_ThrowRangeError(ctx, "invalid array index"); - *plen = 0; - return -1; - } - *plen = v; - return 0; -} - -/* convert a value to a length between 0 and MAX_SAFE_INTEGER. - return -1 for exception */ -static __exception int JS_ToLengthFree(JSContext *ctx, int64_t *plen, - JSValue val) -{ - int res = JS_ToInt64Clamp(ctx, plen, val, 0, MAX_SAFE_INTEGER, 0); - JS_FreeValue(ctx, val); - return res; -} - -/* Note: can return an exception */ -static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val) -{ - double d; - if (!JS_IsNumber(val)) - return FALSE; - if (unlikely(JS_ToFloat64(ctx, &d, val))) - return -1; - return isfinite(d) && floor(d) == d; -} - -static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val) -{ - uint32_t tag; - - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - { - int v; - v = JS_VALUE_GET_INT(val); - return (v < 0); - } - case JS_TAG_FLOAT64: - { - JSFloat64Union u; - u.d = JS_VALUE_GET_FLOAT64(val); - return (u.u64 >> 63); - } - case JS_TAG_BIG_INT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - /* Note: integer zeros are not necessarily positive */ - return p->num.sign && !bf_is_zero(&p->num); - } -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - return p->num.sign; - } - break; - case JS_TAG_BIG_DECIMAL: - { - JSBigDecimal *p = JS_VALUE_GET_PTR(val); - return p->num.sign; - } - break; -#endif - default: - return FALSE; - } -} - -static JSValue js_bigint_to_string1(JSContext *ctx, JSValueConst val, int radix) -{ - JSValue ret; - bf_t a_s, *a; - char *str; - int saved_sign; - - a = JS_ToBigInt(ctx, &a_s, val); - if (!a) - return JS_EXCEPTION; - saved_sign = a->sign; - if (a->expn == BF_EXP_ZERO) - a->sign = 0; - str = bf_ftoa(NULL, a, radix, 0, BF_RNDZ | BF_FTOA_FORMAT_FRAC | - BF_FTOA_JS_QUIRKS); - a->sign = saved_sign; - JS_FreeBigInt(ctx, a, &a_s); - if (!str) - return JS_ThrowOutOfMemory(ctx); - ret = JS_NewString(ctx, str); - bf_free(ctx->bf_ctx, str); - return ret; -} - -static JSValue js_bigint_to_string(JSContext *ctx, JSValueConst val) -{ - return js_bigint_to_string1(ctx, val, 10); -} - -#ifdef CONFIG_BIGNUM - -static JSValue js_ftoa(JSContext *ctx, JSValueConst val1, int radix, - limb_t prec, bf_flags_t flags) -{ - JSValue val, ret; - bf_t a_s, *a; - char *str; - int saved_sign; - - val = JS_ToNumeric(ctx, val1); - if (JS_IsException(val)) - return val; - a = JS_ToBigFloat(ctx, &a_s, val); - if (!a) { - JS_FreeValue(ctx, val); - return JS_EXCEPTION; - } - saved_sign = a->sign; - if (a->expn == BF_EXP_ZERO) - a->sign = 0; - flags |= BF_FTOA_JS_QUIRKS; - if ((flags & BF_FTOA_FORMAT_MASK) == BF_FTOA_FORMAT_FREE_MIN) { - /* Note: for floating point numbers with a radix which is not - a power of two, the current precision is used to compute - the number of digits. */ - if ((radix & (radix - 1)) != 0) { - bf_t r_s, *r = &r_s; - int prec, flags1; - /* must round first */ - if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) { - prec = ctx->fp_env.prec; - flags1 = ctx->fp_env.flags & - (BF_FLAG_SUBNORMAL | (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT)); - } else { - prec = 53; - flags1 = bf_set_exp_bits(11) | BF_FLAG_SUBNORMAL; - } - bf_init(ctx->bf_ctx, r); - bf_set(r, a); - bf_round(r, prec, flags1 | BF_RNDN); - str = bf_ftoa(NULL, r, radix, prec, flags1 | flags); - bf_delete(r); - } else { - str = bf_ftoa(NULL, a, radix, BF_PREC_INF, flags); - } - } else { - str = bf_ftoa(NULL, a, radix, prec, flags); - } - a->sign = saved_sign; - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, val); - if (!str) - return JS_ThrowOutOfMemory(ctx); - ret = JS_NewString(ctx, str); - bf_free(ctx->bf_ctx, str); - return ret; -} - -static JSValue js_bigfloat_to_string(JSContext *ctx, JSValueConst val) -{ - return js_ftoa(ctx, val, 10, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN); -} - -static JSValue js_bigdecimal_to_string1(JSContext *ctx, JSValueConst val, - limb_t prec, int flags) -{ - JSValue ret; - bfdec_t *a; - char *str; - int saved_sign; - - a = JS_ToBigDecimal(ctx, val); - if (!a) - return JS_EXCEPTION; - saved_sign = a->sign; - if (a->expn == BF_EXP_ZERO) - a->sign = 0; - str = bfdec_ftoa(NULL, a, prec, flags | BF_FTOA_JS_QUIRKS); - a->sign = saved_sign; - if (!str) - return JS_ThrowOutOfMemory(ctx); - ret = JS_NewString(ctx, str); - bf_free(ctx->bf_ctx, str); - return ret; -} - -static JSValue js_bigdecimal_to_string(JSContext *ctx, JSValueConst val) -{ - return js_bigdecimal_to_string1(ctx, val, 0, - BF_RNDZ | BF_FTOA_FORMAT_FREE); -} - -#endif /* CONFIG_BIGNUM */ - -/* 2 <= base <= 36 */ -static char *i64toa(char *buf_end, int64_t n, unsigned int base) -{ - char *q = buf_end; - int digit, is_neg; - - is_neg = 0; - if (n < 0) { - is_neg = 1; - n = -n; - } - *--q = '\0'; - do { - digit = (uint64_t)n % base; - n = (uint64_t)n / base; - if (digit < 10) - digit += '0'; - else - digit += 'a' - 10; - *--q = digit; - } while (n != 0); - if (is_neg) - *--q = '-'; - return q; -} - -/* buf1 contains the printf result */ -static void js_ecvt1(double d, int n_digits, int *decpt, int *sign, char *buf, - int rounding_mode, char *buf1, int buf1_size) -{ - if (rounding_mode != FE_TONEAREST) - fesetround(rounding_mode); - snprintf(buf1, buf1_size, "%+.*e", n_digits - 1, d); - if (rounding_mode != FE_TONEAREST) - fesetround(FE_TONEAREST); - *sign = (buf1[0] == '-'); - /* mantissa */ - buf[0] = buf1[1]; - if (n_digits > 1) - memcpy(buf + 1, buf1 + 3, n_digits - 1); - buf[n_digits] = '\0'; - /* exponent */ - *decpt = atoi(buf1 + n_digits + 2 + (n_digits > 1)) + 1; -} - -/* maximum buffer size for js_dtoa */ -#define JS_DTOA_BUF_SIZE 128 - -/* needed because ecvt usually limits the number of digits to - 17. Return the number of digits. */ -static int js_ecvt(double d, int n_digits, int *decpt, int *sign, char *buf, - BOOL is_fixed) -{ - int rounding_mode; - char buf_tmp[JS_DTOA_BUF_SIZE]; - - if (!is_fixed) { - unsigned int n_digits_min, n_digits_max; - /* find the minimum amount of digits (XXX: inefficient but simple) */ - n_digits_min = 1; - n_digits_max = 17; - while (n_digits_min < n_digits_max) { - n_digits = (n_digits_min + n_digits_max) / 2; - js_ecvt1(d, n_digits, decpt, sign, buf, FE_TONEAREST, - buf_tmp, sizeof(buf_tmp)); - if (strtod(buf_tmp, NULL) == d) { - /* no need to keep the trailing zeros */ - while (n_digits >= 2 && buf[n_digits - 1] == '0') - n_digits--; - n_digits_max = n_digits; - } else { - n_digits_min = n_digits + 1; - } - } - n_digits = n_digits_max; - rounding_mode = FE_TONEAREST; - } else { - rounding_mode = FE_TONEAREST; -#ifdef CONFIG_PRINTF_RNDN - { - char buf1[JS_DTOA_BUF_SIZE], buf2[JS_DTOA_BUF_SIZE]; - int decpt1, sign1, decpt2, sign2; - /* The JS rounding is specified as round to nearest ties away - from zero (RNDNA), but in printf the "ties" case is not - specified (for example it is RNDN for glibc, RNDNA for - Windows), so we must round manually. */ - js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_TONEAREST, - buf_tmp, sizeof(buf_tmp)); - /* XXX: could use 2 digits to reduce the average running time */ - if (buf1[n_digits] == '5') { - js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_DOWNWARD, - buf_tmp, sizeof(buf_tmp)); - js_ecvt1(d, n_digits + 1, &decpt2, &sign2, buf2, FE_UPWARD, - buf_tmp, sizeof(buf_tmp)); - if (memcmp(buf1, buf2, n_digits + 1) == 0 && decpt1 == decpt2) { - /* exact result: round away from zero */ - if (sign1) - rounding_mode = FE_DOWNWARD; - else - rounding_mode = FE_UPWARD; - } - } - } -#endif /* CONFIG_PRINTF_RNDN */ - } - js_ecvt1(d, n_digits, decpt, sign, buf, rounding_mode, - buf_tmp, sizeof(buf_tmp)); - return n_digits; -} - -static int js_fcvt1(char *buf, int buf_size, double d, int n_digits, - int rounding_mode) -{ - int n; - if (rounding_mode != FE_TONEAREST) - fesetround(rounding_mode); - n = snprintf(buf, buf_size, "%.*f", n_digits, d); - if (rounding_mode != FE_TONEAREST) - fesetround(FE_TONEAREST); - assert(n < buf_size); - return n; -} - -static void js_fcvt(char *buf, int buf_size, double d, int n_digits) -{ - int rounding_mode; - rounding_mode = FE_TONEAREST; -#ifdef CONFIG_PRINTF_RNDN - { - int n1, n2; - char buf1[JS_DTOA_BUF_SIZE]; - char buf2[JS_DTOA_BUF_SIZE]; - - /* The JS rounding is specified as round to nearest ties away from - zero (RNDNA), but in printf the "ties" case is not specified - (for example it is RNDN for glibc, RNDNA for Windows), so we - must round manually. */ - n1 = js_fcvt1(buf1, sizeof(buf1), d, n_digits + 1, FE_TONEAREST); - rounding_mode = FE_TONEAREST; - /* XXX: could use 2 digits to reduce the average running time */ - if (buf1[n1 - 1] == '5') { - n1 = js_fcvt1(buf1, sizeof(buf1), d, n_digits + 1, FE_DOWNWARD); - n2 = js_fcvt1(buf2, sizeof(buf2), d, n_digits + 1, FE_UPWARD); - if (n1 == n2 && memcmp(buf1, buf2, n1) == 0) { - /* exact result: round away from zero */ - if (buf1[0] == '-') - rounding_mode = FE_DOWNWARD; - else - rounding_mode = FE_UPWARD; - } - } - } -#endif /* CONFIG_PRINTF_RNDN */ - js_fcvt1(buf, buf_size, d, n_digits, rounding_mode); -} - -/* radix != 10 is only supported with flags = JS_DTOA_VAR_FORMAT */ -/* use as many digits as necessary */ -#define JS_DTOA_VAR_FORMAT (0 << 0) -/* use n_digits significant digits (1 <= n_digits <= 101) */ -#define JS_DTOA_FIXED_FORMAT (1 << 0) -/* force fractional format: [-]dd.dd with n_digits fractional digits */ -#define JS_DTOA_FRAC_FORMAT (2 << 0) -/* force exponential notation either in fixed or variable format */ -#define JS_DTOA_FORCE_EXP (1 << 2) - -/* XXX: slow and maybe not fully correct. Use libbf when it is fast enough. - XXX: radix != 10 is only supported for small integers -*/ -static void js_dtoa1(char *buf, double d, int radix, int n_digits, int flags) -{ - char *q; - - if (!isfinite(d)) { - if (isnan(d)) { - strcpy(buf, "NaN"); - } else { - q = buf; - if (d < 0) - *q++ = '-'; - strcpy(q, "Infinity"); - } - } else if (flags == JS_DTOA_VAR_FORMAT) { - int64_t i64; - char buf1[70], *ptr; - i64 = (int64_t)d; - if (d != i64 || i64 > MAX_SAFE_INTEGER || i64 < -MAX_SAFE_INTEGER) - goto generic_conv; - /* fast path for integers */ - ptr = i64toa(buf1 + sizeof(buf1), i64, radix); - strcpy(buf, ptr); - } else { - if (d == 0.0) - d = 0.0; /* convert -0 to 0 */ - if (flags == JS_DTOA_FRAC_FORMAT) { - js_fcvt(buf, JS_DTOA_BUF_SIZE, d, n_digits); - } else { - char buf1[JS_DTOA_BUF_SIZE]; - int sign, decpt, k, n, i, p, n_max; - BOOL is_fixed; - generic_conv: - is_fixed = ((flags & 3) == JS_DTOA_FIXED_FORMAT); - if (is_fixed) { - n_max = n_digits; - } else { - n_max = 21; - } - /* the number has k digits (k >= 1) */ - k = js_ecvt(d, n_digits, &decpt, &sign, buf1, is_fixed); - n = decpt; /* d=10^(n-k)*(buf1) i.e. d= < x.yyyy 10^(n-1) */ - q = buf; - if (sign) - *q++ = '-'; - if (flags & JS_DTOA_FORCE_EXP) - goto force_exp; - if (n >= 1 && n <= n_max) { - if (k <= n) { - memcpy(q, buf1, k); - q += k; - for(i = 0; i < (n - k); i++) - *q++ = '0'; - *q = '\0'; - } else { - /* k > n */ - memcpy(q, buf1, n); - q += n; - *q++ = '.'; - for(i = 0; i < (k - n); i++) - *q++ = buf1[n + i]; - *q = '\0'; - } - } else if (n >= -5 && n <= 0) { - *q++ = '0'; - *q++ = '.'; - for(i = 0; i < -n; i++) - *q++ = '0'; - memcpy(q, buf1, k); - q += k; - *q = '\0'; - } else { - force_exp: - /* exponential notation */ - *q++ = buf1[0]; - if (k > 1) { - *q++ = '.'; - for(i = 1; i < k; i++) - *q++ = buf1[i]; - } - *q++ = 'e'; - p = n - 1; - if (p >= 0) - *q++ = '+'; - sprintf(q, "%d", p); - } - } - } -} - -static JSValue js_dtoa(JSContext *ctx, - double d, int radix, int n_digits, int flags) -{ - char buf[JS_DTOA_BUF_SIZE]; - js_dtoa1(buf, d, radix, n_digits, flags); - return JS_NewString(ctx, buf); -} - -JSValue JS_ToStringInternal(JSContext *ctx, JSValueConst val, BOOL is_ToPropertyKey) -{ - uint32_t tag; - const char *str; - char buf[32]; - - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_STRING: - return JS_DupValue(ctx, val); - case JS_TAG_INT: - snprintf(buf, sizeof(buf), "%d", JS_VALUE_GET_INT(val)); - str = buf; - goto new_string; - case JS_TAG_BOOL: - return JS_AtomToString(ctx, JS_VALUE_GET_BOOL(val) ? - JS_ATOM_true : JS_ATOM_false); - case JS_TAG_NULL: - return JS_AtomToString(ctx, JS_ATOM_null); - case JS_TAG_UNDEFINED: - return JS_AtomToString(ctx, JS_ATOM_undefined); - case JS_TAG_EXCEPTION: - return JS_EXCEPTION; - case JS_TAG_OBJECT: - { - JSValue val1, ret; - val1 = JS_ToPrimitive(ctx, val, HINT_STRING); - if (JS_IsException(val1)) - return val1; - ret = JS_ToStringInternal(ctx, val1, is_ToPropertyKey); - JS_FreeValue(ctx, val1); - return ret; - } - break; - case JS_TAG_FUNCTION_BYTECODE: - str = "[function bytecode]"; - goto new_string; - case JS_TAG_SYMBOL: - if (is_ToPropertyKey) { - return JS_DupValue(ctx, val); - } else { - return JS_ThrowTypeError(ctx, "cannot convert symbol to string"); - } - case JS_TAG_FLOAT64: - return js_dtoa(ctx, JS_VALUE_GET_FLOAT64(val), 10, 0, - JS_DTOA_VAR_FORMAT); - case JS_TAG_BIG_INT: - return ctx->rt->bigint_ops.to_string(ctx, val); -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - return ctx->rt->bigfloat_ops.to_string(ctx, val); - case JS_TAG_BIG_DECIMAL: - return ctx->rt->bigdecimal_ops.to_string(ctx, val); -#endif - default: - str = "[unsupported type]"; - new_string: - return JS_NewString(ctx, str); - } -} - -JSValue JS_ToString(JSContext *ctx, JSValueConst val) -{ - return JS_ToStringInternal(ctx, val, FALSE); -} - -static JSValue JS_ToStringFree(JSContext *ctx, JSValue val) -{ - JSValue ret; - ret = JS_ToString(ctx, val); - JS_FreeValue(ctx, val); - return ret; -} - -static JSValue JS_ToLocaleStringFree(JSContext *ctx, JSValue val) -{ - if (JS_IsUndefined(val) || JS_IsNull(val)) - return JS_ToStringFree(ctx, val); - return JS_InvokeFree(ctx, val, JS_ATOM_toLocaleString, 0, NULL); -} - -JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val) -{ - return JS_ToStringInternal(ctx, val, TRUE); -} - -static JSValue JS_ToStringCheckObject(JSContext *ctx, JSValueConst val) -{ - uint32_t tag = JS_VALUE_GET_TAG(val); - if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) - return JS_ThrowTypeError(ctx, "null or undefined are forbidden"); - return JS_ToString(ctx, val); -} - -static JSValue JS_ToQuotedString(JSContext *ctx, JSValueConst val1) -{ - JSValue val; - JSString *p; - int i; - uint32_t c; - StringBuffer b_s, *b = &b_s; - char buf[16]; - - val = JS_ToStringCheckObject(ctx, val1); - if (JS_IsException(val)) - return val; - p = JS_VALUE_GET_STRING(val); - - if (string_buffer_init(ctx, b, p->len + 2)) - goto fail; - - if (string_buffer_putc8(b, '\"')) - goto fail; - for(i = 0; i < p->len; ) { - c = string_getc(p, &i); - switch(c) { - case '\t': - c = 't'; - goto quote; - case '\r': - c = 'r'; - goto quote; - case '\n': - c = 'n'; - goto quote; - case '\b': - c = 'b'; - goto quote; - case '\f': - c = 'f'; - goto quote; - case '\"': - case '\\': - quote: - if (string_buffer_putc8(b, '\\')) - goto fail; - if (string_buffer_putc8(b, c)) - goto fail; - break; - default: - if (c < 32 || (c >= 0xd800 && c < 0xe000)) { - snprintf(buf, sizeof(buf), "\\u%04x", c); - if (string_buffer_puts8(b, buf)) - goto fail; - } else { - if (string_buffer_putc(b, c)) - goto fail; - } - break; - } - } - if (string_buffer_putc8(b, '\"')) - goto fail; - JS_FreeValue(ctx, val); - return string_buffer_end(b); - fail: - JS_FreeValue(ctx, val); - string_buffer_free(b); - return JS_EXCEPTION; -} - -static __maybe_unused void JS_DumpObjectHeader(JSRuntime *rt) -{ - printf("%14s %4s %4s %14s %10s %s\n", - "ADDRESS", "REFS", "SHRF", "PROTO", "CLASS", "PROPS"); -} - -/* for debug only: dump an object without side effect */ -static __maybe_unused void JS_DumpObject(JSRuntime *rt, JSObject *p) -{ - uint32_t i; - char atom_buf[ATOM_GET_STR_BUF_SIZE]; - JSShape *sh; - JSShapeProperty *prs; - JSProperty *pr; - BOOL is_first = TRUE; - - /* XXX: should encode atoms with special characters */ - sh = p->shape; /* the shape can be NULL while freeing an object */ - printf("%14p %4d ", - (void *)p, - p->header.ref_count); - if (sh) { - printf("%3d%c %14p ", - sh->header.ref_count, - " *"[sh->is_hashed], - (void *)sh->proto); - } else { - printf("%3s %14s ", "-", "-"); - } - printf("%10s ", - JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), rt->class_array[p->class_id].class_name)); - if (p->is_exotic && p->fast_array) { - printf("[ "); - for(i = 0; i < p->u.array.count; i++) { - if (i != 0) - printf(", "); - switch (p->class_id) { - case JS_CLASS_ARRAY: - case JS_CLASS_ARGUMENTS: - JS_DumpValueShort(rt, p->u.array.u.values[i]); - break; - case JS_CLASS_UINT8C_ARRAY: - case JS_CLASS_INT8_ARRAY: - case JS_CLASS_UINT8_ARRAY: - case JS_CLASS_INT16_ARRAY: - case JS_CLASS_UINT16_ARRAY: - case JS_CLASS_INT32_ARRAY: - case JS_CLASS_UINT32_ARRAY: - case JS_CLASS_BIG_INT64_ARRAY: - case JS_CLASS_BIG_UINT64_ARRAY: - case JS_CLASS_FLOAT32_ARRAY: - case JS_CLASS_FLOAT64_ARRAY: - { - int size = 1 << typed_array_size_log2(p->class_id); - const uint8_t *b = p->u.array.u.uint8_ptr + i * size; - while (size-- > 0) - printf("%02X", *b++); - } - break; - } - } - printf(" ] "); - } - - if (sh) { - printf("{ "); - for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { - if (prs->atom != JS_ATOM_NULL) { - pr = &p->prop[i]; - if (!is_first) - printf(", "); - printf("%s: ", - JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), prs->atom)); - if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { - printf("[getset %p %p]", (void *)pr->u.getset.getter, - (void *)pr->u.getset.setter); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { - printf("[varref %p]", (void *)pr->u.var_ref); - } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { - printf("[autoinit %p %d %p]", - (void *)js_autoinit_get_realm(pr), - js_autoinit_get_id(pr), - (void *)pr->u.init.opaque); - } else { - JS_DumpValueShort(rt, pr->u.value); - } - is_first = FALSE; - } - } - printf(" }"); - } - - if (js_class_has_bytecode(p->class_id)) { - JSFunctionBytecode *b = p->u.func.function_bytecode; - JSVarRef **var_refs; - if (b->closure_var_count) { - var_refs = p->u.func.var_refs; - printf(" Closure:"); - for(i = 0; i < b->closure_var_count; i++) { - printf(" "); - JS_DumpValueShort(rt, var_refs[i]->value); - } - if (p->u.func.home_object) { - printf(" HomeObject: "); - JS_DumpValueShort(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object)); - } - } - } - printf("\n"); -} - -static __maybe_unused void JS_DumpGCObject(JSRuntime *rt, JSGCObjectHeader *p) -{ - if (p->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) { - JS_DumpObject(rt, (JSObject *)p); - } else { - printf("%14p %4d ", - (void *)p, - p->ref_count); - switch(p->gc_obj_type) { - case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: - printf("[function bytecode]"); - break; - case JS_GC_OBJ_TYPE_SHAPE: - printf("[shape]"); - break; - case JS_GC_OBJ_TYPE_VAR_REF: - printf("[var_ref]"); - break; - case JS_GC_OBJ_TYPE_ASYNC_FUNCTION: - printf("[async_function]"); - break; - case JS_GC_OBJ_TYPE_JS_CONTEXT: - printf("[js_context]"); - break; - default: - printf("[unknown %d]", p->gc_obj_type); - break; - } - printf("\n"); - } -} - -static __maybe_unused void JS_DumpValueShort(JSRuntime *rt, - JSValueConst val) -{ - uint32_t tag = JS_VALUE_GET_NORM_TAG(val); - const char *str; - - switch(tag) { - case JS_TAG_INT: - printf("%d", JS_VALUE_GET_INT(val)); - break; - case JS_TAG_BOOL: - if (JS_VALUE_GET_BOOL(val)) - str = "true"; - else - str = "false"; - goto print_str; - case JS_TAG_NULL: - str = "null"; - goto print_str; - case JS_TAG_EXCEPTION: - str = "exception"; - goto print_str; - case JS_TAG_UNINITIALIZED: - str = "uninitialized"; - goto print_str; - case JS_TAG_UNDEFINED: - str = "undefined"; - print_str: - printf("%s", str); - break; - case JS_TAG_FLOAT64: - printf("%.14g", JS_VALUE_GET_FLOAT64(val)); - break; - case JS_TAG_BIG_INT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - char *str; - str = bf_ftoa(NULL, &p->num, 10, 0, - BF_RNDZ | BF_FTOA_FORMAT_FRAC); - printf("%sn", str); - bf_realloc(&rt->bf_ctx, str, 0); - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - char *str; - str = bf_ftoa(NULL, &p->num, 16, BF_PREC_INF, - BF_RNDZ | BF_FTOA_FORMAT_FREE | BF_FTOA_ADD_PREFIX); - printf("%sl", str); - bf_free(&rt->bf_ctx, str); - } - break; - case JS_TAG_BIG_DECIMAL: - { - JSBigDecimal *p = JS_VALUE_GET_PTR(val); - char *str; - str = bfdec_ftoa(NULL, &p->num, BF_PREC_INF, - BF_RNDZ | BF_FTOA_FORMAT_FREE); - printf("%sm", str); - bf_free(&rt->bf_ctx, str); - } - break; -#endif - case JS_TAG_STRING: - { - JSString *p; - p = JS_VALUE_GET_STRING(val); - JS_DumpString(rt, p); - } - break; - case JS_TAG_FUNCTION_BYTECODE: - { - JSFunctionBytecode *b = JS_VALUE_GET_PTR(val); - char buf[ATOM_GET_STR_BUF_SIZE]; - printf("[bytecode %s]", JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name)); - } - break; - case JS_TAG_OBJECT: - { - JSObject *p = JS_VALUE_GET_OBJ(val); - JSAtom atom = rt->class_array[p->class_id].class_name; - char atom_buf[ATOM_GET_STR_BUF_SIZE]; - printf("[%s %p]", - JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), atom), (void *)p); - } - break; - case JS_TAG_SYMBOL: - { - JSAtomStruct *p = JS_VALUE_GET_PTR(val); - char atom_buf[ATOM_GET_STR_BUF_SIZE]; - printf("Symbol(%s)", - JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), js_get_atom_index(rt, p))); - } - break; - case JS_TAG_MODULE: - printf("[module]"); - break; - default: - printf("[unknown tag %d]", tag); - break; - } -} - -static __maybe_unused void JS_DumpValue(JSContext *ctx, - JSValueConst val) -{ - JS_DumpValueShort(ctx->rt, val); -} - -static __maybe_unused void JS_PrintValue(JSContext *ctx, - const char *str, - JSValueConst val) -{ - printf("%s=", str); - JS_DumpValueShort(ctx->rt, val); - printf("\n"); -} - -/* return -1 if exception (proxy case) or TRUE/FALSE */ -int JS_IsArray(JSContext *ctx, JSValueConst val) -{ - JSObject *p; - if (JS_VALUE_GET_TAG(val) == JS_TAG_OBJECT) { - p = JS_VALUE_GET_OBJ(val); - if (unlikely(p->class_id == JS_CLASS_PROXY)) - return js_proxy_isArray(ctx, val); - else - return p->class_id == JS_CLASS_ARRAY; - } else { - return FALSE; - } -} - -static double js_pow(double a, double b) -{ - if (unlikely(!isfinite(b)) && fabs(a) == 1) { - /* not compatible with IEEE 754 */ - return JS_FLOAT64_NAN; - } else { - return pow(a, b); - } -} - -JSValue JS_NewBigInt64_1(JSContext *ctx, int64_t v) -{ - JSValue val; - bf_t *a; - val = JS_NewBigInt(ctx); - if (JS_IsException(val)) - return val; - a = JS_GetBigInt(val); - if (bf_set_si(a, v)) { - JS_FreeValue(ctx, val); - return JS_ThrowOutOfMemory(ctx); - } - return val; -} - -JSValue JS_NewBigInt64(JSContext *ctx, int64_t v) -{ - if (is_math_mode(ctx) && - v >= -MAX_SAFE_INTEGER && v <= MAX_SAFE_INTEGER) { - return JS_NewInt64(ctx, v); - } else { - return JS_NewBigInt64_1(ctx, v); - } -} - -JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v) -{ - JSValue val; - if (is_math_mode(ctx) && v <= MAX_SAFE_INTEGER) { - val = JS_NewInt64(ctx, v); - } else { - bf_t *a; - val = JS_NewBigInt(ctx); - if (JS_IsException(val)) - return val; - a = JS_GetBigInt(val); - if (bf_set_ui(a, v)) { - JS_FreeValue(ctx, val); - return JS_ThrowOutOfMemory(ctx); - } - } - return val; -} - -/* return NaN if bad bigint literal */ -static JSValue JS_StringToBigInt(JSContext *ctx, JSValue val) -{ - const char *str, *p; - size_t len; - int flags; - - str = JS_ToCStringLen(ctx, &len, val); - JS_FreeValue(ctx, val); - if (!str) - return JS_EXCEPTION; - p = str; - p += skip_spaces(p); - if ((p - str) == len) { - val = JS_NewBigInt64(ctx, 0); - } else { - flags = ATOD_INT_ONLY | ATOD_ACCEPT_BIN_OCT | ATOD_TYPE_BIG_INT; -#ifdef CONFIG_BIGNUM - if (is_math_mode(ctx)) - flags |= ATOD_MODE_BIGINT; -#endif - val = js_atof(ctx, p, &p, 0, flags); - p += skip_spaces(p); - if (!JS_IsException(val)) { - if ((p - str) != len) { - JS_FreeValue(ctx, val); - val = JS_NAN; - } - } - } - JS_FreeCString(ctx, str); - return val; -} - -static JSValue JS_StringToBigIntErr(JSContext *ctx, JSValue val) -{ - val = JS_StringToBigInt(ctx, val); - if (JS_VALUE_IS_NAN(val)) - return JS_ThrowSyntaxError(ctx, "invalid bigint literal"); - return val; -} - -/* if the returned bigfloat is allocated it is equal to - 'buf'. Otherwise it is a pointer to the bigfloat in 'val'. */ -static bf_t *JS_ToBigIntFree(JSContext *ctx, bf_t *buf, JSValue val) -{ - uint32_t tag; - bf_t *r; - JSBigFloat *p; - - redo: - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - if (!is_math_mode(ctx)) - goto fail; - /* fall tru */ - case JS_TAG_BOOL: - r = buf; - bf_init(ctx->bf_ctx, r); - bf_set_si(r, JS_VALUE_GET_INT(val)); - break; - case JS_TAG_FLOAT64: - { - double d = JS_VALUE_GET_FLOAT64(val); - if (!is_math_mode(ctx)) - goto fail; - if (!isfinite(d)) - goto fail; - r = buf; - bf_init(ctx->bf_ctx, r); - d = trunc(d); - bf_set_float64(r, d); - } - break; - case JS_TAG_BIG_INT: - p = JS_VALUE_GET_PTR(val); - r = &p->num; - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - if (!is_math_mode(ctx)) - goto fail; - p = JS_VALUE_GET_PTR(val); - if (!bf_is_finite(&p->num)) - goto fail; - r = buf; - bf_init(ctx->bf_ctx, r); - bf_set(r, &p->num); - bf_rint(r, BF_RNDZ); - JS_FreeValue(ctx, val); - break; -#endif - case JS_TAG_STRING: - val = JS_StringToBigIntErr(ctx, val); - if (JS_IsException(val)) - return NULL; - goto redo; - case JS_TAG_OBJECT: - val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER); - if (JS_IsException(val)) - return NULL; - goto redo; - default: - fail: - JS_FreeValue(ctx, val); - JS_ThrowTypeError(ctx, "cannot convert to bigint"); - return NULL; - } - return r; -} - -static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val) -{ - return JS_ToBigIntFree(ctx, buf, JS_DupValue(ctx, val)); -} - -static __maybe_unused JSValue JS_ToBigIntValueFree(JSContext *ctx, JSValue val) -{ - if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_INT) { - return val; - } else { - bf_t a_s, *a, *r; - int ret; - JSValue res; - - res = JS_NewBigInt(ctx); - if (JS_IsException(res)) - return JS_EXCEPTION; - a = JS_ToBigIntFree(ctx, &a_s, val); - if (!a) { - JS_FreeValue(ctx, res); - return JS_EXCEPTION; - } - r = JS_GetBigInt(res); - ret = bf_set(r, a); - JS_FreeBigInt(ctx, a, &a_s); - if (ret) { - JS_FreeValue(ctx, res); - return JS_ThrowOutOfMemory(ctx); - } - return JS_CompactBigInt(ctx, res); - } -} - -/* free the bf_t allocated by JS_ToBigInt */ -static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf) -{ - if (a == buf) { - bf_delete(a); - } else { - JSBigFloat *p = (JSBigFloat *)((uint8_t *)a - - offsetof(JSBigFloat, num)); - JS_FreeValue(ctx, JS_MKPTR(JS_TAG_BIG_INT, p)); - } -} - -/* XXX: merge with JS_ToInt64Free with a specific flag */ -static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val) -{ - bf_t a_s, *a; - - a = JS_ToBigIntFree(ctx, &a_s, val); - if (!a) { - *pres = 0; - return -1; - } - bf_get_int64(pres, a, BF_GET_INT_MOD); - JS_FreeBigInt(ctx, a, &a_s); - return 0; -} - -int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val) -{ - return JS_ToBigInt64Free(ctx, pres, JS_DupValue(ctx, val)); -} - -static JSBigFloat *js_new_bf(JSContext *ctx) -{ - JSBigFloat *p; - p = js_malloc(ctx, sizeof(*p)); - if (!p) - return NULL; - p->header.ref_count = 1; - bf_init(ctx->bf_ctx, &p->num); - return p; -} - -static JSValue JS_NewBigInt(JSContext *ctx) -{ - JSBigFloat *p; - p = js_malloc(ctx, sizeof(*p)); - if (!p) - return JS_EXCEPTION; - p->header.ref_count = 1; - bf_init(ctx->bf_ctx, &p->num); - return JS_MKPTR(JS_TAG_BIG_INT, p); -} - -static JSValue JS_CompactBigInt1(JSContext *ctx, JSValue val, - BOOL convert_to_safe_integer) -{ - int64_t v; - bf_t *a; - - if (JS_VALUE_GET_TAG(val) != JS_TAG_BIG_INT) - return val; /* fail safe */ - a = JS_GetBigInt(val); - if (convert_to_safe_integer && bf_get_int64(&v, a, 0) == 0 && - v >= -MAX_SAFE_INTEGER && v <= MAX_SAFE_INTEGER) { - JS_FreeValue(ctx, val); - return JS_NewInt64(ctx, v); - } else if (a->expn == BF_EXP_ZERO && a->sign) { - JSBigFloat *p = JS_VALUE_GET_PTR(val); - assert(p->header.ref_count == 1); - a->sign = 0; - } - return val; -} - -/* Convert the big int to a safe integer if in math mode. normalize - the zero representation. Could also be used to convert the bigint - to a short bigint value. The reference count of the value must be - 1. Cannot fail */ -static JSValue JS_CompactBigInt(JSContext *ctx, JSValue val) -{ - return JS_CompactBigInt1(ctx, val, is_math_mode(ctx)); -} - -static JSValue throw_bf_exception(JSContext *ctx, int status) -{ - const char *str; - if (status & BF_ST_MEM_ERROR) - return JS_ThrowOutOfMemory(ctx); - if (status & BF_ST_DIVIDE_ZERO) { - str = "division by zero"; - } else if (status & BF_ST_INVALID_OP) { - str = "invalid operation"; - } else { - str = "integer overflow"; - } - return JS_ThrowRangeError(ctx, "%s", str); -} - -/* if the returned bigfloat is allocated it is equal to - 'buf'. Otherwise it is a pointer to the bigfloat in 'val'. Return - NULL in case of error. */ -static bf_t *JS_ToBigFloat(JSContext *ctx, bf_t *buf, JSValueConst val) -{ - uint32_t tag; - bf_t *r; - JSBigFloat *p; - - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_INT: - case JS_TAG_BOOL: - case JS_TAG_NULL: - r = buf; - bf_init(ctx->bf_ctx, r); - if (bf_set_si(r, JS_VALUE_GET_INT(val))) - goto fail; - break; - case JS_TAG_FLOAT64: - r = buf; - bf_init(ctx->bf_ctx, r); - if (bf_set_float64(r, JS_VALUE_GET_FLOAT64(val))) { - fail: - bf_delete(r); - return NULL; - } - break; - case JS_TAG_BIG_INT: -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: -#endif - p = JS_VALUE_GET_PTR(val); - r = &p->num; - break; - case JS_TAG_UNDEFINED: - default: - r = buf; - bf_init(ctx->bf_ctx, r); - bf_set_nan(r); - break; - } - return r; -} - -#ifdef CONFIG_BIGNUM -/* return NULL if invalid type */ -static bfdec_t *JS_ToBigDecimal(JSContext *ctx, JSValueConst val) -{ - uint32_t tag; - JSBigDecimal *p; - bfdec_t *r; - - tag = JS_VALUE_GET_NORM_TAG(val); - switch(tag) { - case JS_TAG_BIG_DECIMAL: - p = JS_VALUE_GET_PTR(val); - r = &p->num; - break; - default: - JS_ThrowTypeError(ctx, "bigdecimal expected"); - r = NULL; - break; - } - return r; -} - -static JSValue JS_NewBigFloat(JSContext *ctx) -{ - JSBigFloat *p; - p = js_malloc(ctx, sizeof(*p)); - if (!p) - return JS_EXCEPTION; - p->header.ref_count = 1; - bf_init(ctx->bf_ctx, &p->num); - return JS_MKPTR(JS_TAG_BIG_FLOAT, p); -} - -static JSValue JS_NewBigDecimal(JSContext *ctx) -{ - JSBigDecimal *p; - p = js_malloc(ctx, sizeof(*p)); - if (!p) - return JS_EXCEPTION; - p->header.ref_count = 1; - bfdec_init(ctx->bf_ctx, &p->num); - return JS_MKPTR(JS_TAG_BIG_DECIMAL, p); -} - -/* must be kept in sync with JSOverloadableOperatorEnum */ -/* XXX: use atoms ? */ -static const char js_overloadable_operator_names[JS_OVOP_COUNT][4] = { - "+", - "-", - "*", - "/", - "%", - "**", - "|", - "&", - "^", - "<<", - ">>", - ">>>", - "==", - "<", - "pos", - "neg", - "++", - "--", - "~", -}; - -static int get_ovop_from_opcode(OPCodeEnum op) -{ - switch(op) { - case OP_add: - return JS_OVOP_ADD; - case OP_sub: - return JS_OVOP_SUB; - case OP_mul: - return JS_OVOP_MUL; - case OP_div: - return JS_OVOP_DIV; - case OP_mod: - case OP_math_mod: - return JS_OVOP_MOD; - case OP_pow: - return JS_OVOP_POW; - case OP_or: - return JS_OVOP_OR; - case OP_and: - return JS_OVOP_AND; - case OP_xor: - return JS_OVOP_XOR; - case OP_shl: - return JS_OVOP_SHL; - case OP_sar: - return JS_OVOP_SAR; - case OP_shr: - return JS_OVOP_SHR; - case OP_eq: - case OP_neq: - return JS_OVOP_EQ; - case OP_lt: - case OP_lte: - case OP_gt: - case OP_gte: - return JS_OVOP_LESS; - case OP_plus: - return JS_OVOP_POS; - case OP_neg: - return JS_OVOP_NEG; - case OP_inc: - return JS_OVOP_INC; - case OP_dec: - return JS_OVOP_DEC; - default: - abort(); - } -} - -/* return NULL if not present */ -static JSObject *find_binary_op(JSBinaryOperatorDef *def, - uint32_t operator_index, - JSOverloadableOperatorEnum op) -{ - JSBinaryOperatorDefEntry *ent; - int i; - for(i = 0; i < def->count; i++) { - ent = &def->tab[i]; - if (ent->operator_index == operator_index) - return ent->ops[op]; - } - return NULL; -} - -/* return -1 if exception, 0 if no operator overloading, 1 if - overloaded operator called */ -static __exception int js_call_binary_op_fallback(JSContext *ctx, - JSValue *pret, - JSValueConst op1, - JSValueConst op2, - OPCodeEnum op, - BOOL is_numeric, - int hint) -{ - JSValue opset1_obj, opset2_obj, method, ret, new_op1, new_op2; - JSOperatorSetData *opset1, *opset2; - JSOverloadableOperatorEnum ovop; - JSObject *p; - JSValueConst args[2]; - - if (!ctx->allow_operator_overloading) - return 0; - - opset2_obj = JS_UNDEFINED; - opset1_obj = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorSet); - if (JS_IsException(opset1_obj)) - goto exception; - if (JS_IsUndefined(opset1_obj)) - return 0; - opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET); - if (!opset1) - goto exception; - - opset2_obj = JS_GetProperty(ctx, op2, JS_ATOM_Symbol_operatorSet); - if (JS_IsException(opset2_obj)) - goto exception; - if (JS_IsUndefined(opset2_obj)) { - JS_FreeValue(ctx, opset1_obj); - return 0; - } - opset2 = JS_GetOpaque2(ctx, opset2_obj, JS_CLASS_OPERATOR_SET); - if (!opset2) - goto exception; - - if (opset1->is_primitive && opset2->is_primitive) { - JS_FreeValue(ctx, opset1_obj); - JS_FreeValue(ctx, opset2_obj); - return 0; - } - - ovop = get_ovop_from_opcode(op); - - if (opset1->operator_counter == opset2->operator_counter) { - p = opset1->self_ops[ovop]; - } else if (opset1->operator_counter > opset2->operator_counter) { - p = find_binary_op(&opset1->left, opset2->operator_counter, ovop); - } else { - p = find_binary_op(&opset2->right, opset1->operator_counter, ovop); - } - if (!p) { - JS_ThrowTypeError(ctx, "operator %s: no function defined", - js_overloadable_operator_names[ovop]); - goto exception; - } - - if (opset1->is_primitive) { - if (is_numeric) { - new_op1 = JS_ToNumeric(ctx, op1); - } else { - new_op1 = JS_ToPrimitive(ctx, op1, hint); - } - if (JS_IsException(new_op1)) - goto exception; - } else { - new_op1 = JS_DupValue(ctx, op1); - } - - if (opset2->is_primitive) { - if (is_numeric) { - new_op2 = JS_ToNumeric(ctx, op2); - } else { - new_op2 = JS_ToPrimitive(ctx, op2, hint); - } - if (JS_IsException(new_op2)) { - JS_FreeValue(ctx, new_op1); - goto exception; - } - } else { - new_op2 = JS_DupValue(ctx, op2); - } - - /* XXX: could apply JS_ToPrimitive() if primitive type so that the - operator function does not get a value object */ - - method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - if (ovop == JS_OVOP_LESS && (op == OP_lte || op == OP_gt)) { - args[0] = new_op2; - args[1] = new_op1; - } else { - args[0] = new_op1; - args[1] = new_op2; - } - ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args); - JS_FreeValue(ctx, new_op1); - JS_FreeValue(ctx, new_op2); - if (JS_IsException(ret)) - goto exception; - if (ovop == JS_OVOP_EQ) { - BOOL res = JS_ToBoolFree(ctx, ret); - if (op == OP_neq) - res ^= 1; - ret = JS_NewBool(ctx, res); - } else if (ovop == JS_OVOP_LESS) { - if (JS_IsUndefined(ret)) { - ret = JS_FALSE; - } else { - BOOL res = JS_ToBoolFree(ctx, ret); - if (op == OP_lte || op == OP_gte) - res ^= 1; - ret = JS_NewBool(ctx, res); - } - } - JS_FreeValue(ctx, opset1_obj); - JS_FreeValue(ctx, opset2_obj); - *pret = ret; - return 1; - exception: - JS_FreeValue(ctx, opset1_obj); - JS_FreeValue(ctx, opset2_obj); - *pret = JS_UNDEFINED; - return -1; -} - -/* try to call the operation on the operatorSet field of 'obj'. Only - used for "/" and "**" on the BigInt prototype in math mode */ -static __exception int js_call_binary_op_simple(JSContext *ctx, - JSValue *pret, - JSValueConst obj, - JSValueConst op1, - JSValueConst op2, - OPCodeEnum op) -{ - JSValue opset1_obj, method, ret, new_op1, new_op2; - JSOperatorSetData *opset1; - JSOverloadableOperatorEnum ovop; - JSObject *p; - JSValueConst args[2]; - - opset1_obj = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_operatorSet); - if (JS_IsException(opset1_obj)) - goto exception; - if (JS_IsUndefined(opset1_obj)) - return 0; - opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET); - if (!opset1) - goto exception; - ovop = get_ovop_from_opcode(op); - - p = opset1->self_ops[ovop]; - if (!p) { - JS_FreeValue(ctx, opset1_obj); - return 0; - } - - new_op1 = JS_ToNumeric(ctx, op1); - if (JS_IsException(new_op1)) - goto exception; - new_op2 = JS_ToNumeric(ctx, op2); - if (JS_IsException(new_op2)) { - JS_FreeValue(ctx, new_op1); - goto exception; - } - - method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - args[0] = new_op1; - args[1] = new_op2; - ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args); - JS_FreeValue(ctx, new_op1); - JS_FreeValue(ctx, new_op2); - if (JS_IsException(ret)) - goto exception; - JS_FreeValue(ctx, opset1_obj); - *pret = ret; - return 1; - exception: - JS_FreeValue(ctx, opset1_obj); - *pret = JS_UNDEFINED; - return -1; -} - -/* return -1 if exception, 0 if no operator overloading, 1 if - overloaded operator called */ -static __exception int js_call_unary_op_fallback(JSContext *ctx, - JSValue *pret, - JSValueConst op1, - OPCodeEnum op) -{ - JSValue opset1_obj, method, ret; - JSOperatorSetData *opset1; - JSOverloadableOperatorEnum ovop; - JSObject *p; - - if (!ctx->allow_operator_overloading) - return 0; - - opset1_obj = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorSet); - if (JS_IsException(opset1_obj)) - goto exception; - if (JS_IsUndefined(opset1_obj)) - return 0; - opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET); - if (!opset1) - goto exception; - if (opset1->is_primitive) { - JS_FreeValue(ctx, opset1_obj); - return 0; - } - - ovop = get_ovop_from_opcode(op); - - p = opset1->self_ops[ovop]; - if (!p) { - JS_ThrowTypeError(ctx, "no overloaded operator %s", - js_overloadable_operator_names[ovop]); - goto exception; - } - method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); - ret = JS_CallFree(ctx, method, JS_UNDEFINED, 1, &op1); - if (JS_IsException(ret)) - goto exception; - JS_FreeValue(ctx, opset1_obj); - *pret = ret; - return 1; - exception: - JS_FreeValue(ctx, opset1_obj); - *pret = JS_UNDEFINED; - return -1; -} - -static int js_unary_arith_bigfloat(JSContext *ctx, - JSValue *pres, OPCodeEnum op, JSValue op1) -{ - bf_t a_s, *r, *a; - int ret, v; - JSValue res; - - if (op == OP_plus && !is_math_mode(ctx)) { - JS_ThrowTypeError(ctx, "bigfloat argument with unary +"); - JS_FreeValue(ctx, op1); - return -1; - } - - res = JS_NewBigFloat(ctx); - if (JS_IsException(res)) { - JS_FreeValue(ctx, op1); - return -1; - } - r = JS_GetBigFloat(res); - a = JS_ToBigFloat(ctx, &a_s, op1); - if (!a) { - JS_FreeValue(ctx, res); - JS_FreeValue(ctx, op1); - return -1; - } - ret = 0; - switch(op) { - case OP_inc: - case OP_dec: - v = 2 * (op - OP_dec) - 1; - ret = bf_add_si(r, a, v, ctx->fp_env.prec, ctx->fp_env.flags); - break; - case OP_plus: - ret = bf_set(r, a); - break; - case OP_neg: - ret = bf_set(r, a); - bf_neg(r); - break; - default: - abort(); - } - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, op1); - if (unlikely(ret & BF_ST_MEM_ERROR)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - *pres = res; - return 0; -} - -static int js_unary_arith_bigdecimal(JSContext *ctx, - JSValue *pres, OPCodeEnum op, JSValue op1) -{ - bfdec_t *r, *a; - int ret, v; - JSValue res; - - if (op == OP_plus && !is_math_mode(ctx)) { - JS_ThrowTypeError(ctx, "bigdecimal argument with unary +"); - JS_FreeValue(ctx, op1); - return -1; - } - - res = JS_NewBigDecimal(ctx); - if (JS_IsException(res)) { - JS_FreeValue(ctx, op1); - return -1; - } - r = JS_GetBigDecimal(res); - a = JS_ToBigDecimal(ctx, op1); - if (!a) { - JS_FreeValue(ctx, res); - JS_FreeValue(ctx, op1); - return -1; - } - ret = 0; - switch(op) { - case OP_inc: - case OP_dec: - v = 2 * (op - OP_dec) - 1; - ret = bfdec_add_si(r, a, v, BF_PREC_INF, BF_RNDZ); - break; - case OP_plus: - ret = bfdec_set(r, a); - break; - case OP_neg: - ret = bfdec_set(r, a); - bfdec_neg(r); - break; - default: - abort(); - } - JS_FreeValue(ctx, op1); - if (unlikely(ret)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - *pres = res; - return 0; -} - -#endif /* CONFIG_BIGNUM */ - -static int js_unary_arith_bigint(JSContext *ctx, - JSValue *pres, OPCodeEnum op, JSValue op1) -{ - bf_t a_s, *r, *a; - int ret, v; - JSValue res; - - if (op == OP_plus && !is_math_mode(ctx)) { - JS_ThrowTypeError(ctx, "bigint argument with unary +"); - JS_FreeValue(ctx, op1); - return -1; - } - res = JS_NewBigInt(ctx); - if (JS_IsException(res)) { - JS_FreeValue(ctx, op1); - return -1; - } - r = JS_GetBigInt(res); - a = JS_ToBigInt(ctx, &a_s, op1); - if (!a) { - JS_FreeValue(ctx, res); - JS_FreeValue(ctx, op1); - return -1; - } - ret = 0; - switch(op) { - case OP_inc: - case OP_dec: - v = 2 * (op - OP_dec) - 1; - ret = bf_add_si(r, a, v, BF_PREC_INF, BF_RNDZ); - break; - case OP_plus: - ret = bf_set(r, a); - break; - case OP_neg: - ret = bf_set(r, a); - bf_neg(r); - break; - case OP_not: - ret = bf_add_si(r, a, 1, BF_PREC_INF, BF_RNDZ); - bf_neg(r); - break; - default: - abort(); - } - JS_FreeBigInt(ctx, a, &a_s); - JS_FreeValue(ctx, op1); - if (unlikely(ret)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - res = JS_CompactBigInt(ctx, res); - *pres = res; - return 0; -} - -static no_inline __exception int js_unary_arith_slow(JSContext *ctx, - JSValue *sp, - OPCodeEnum op) -{ - JSValue op1; - int v; - uint32_t tag; - - op1 = sp[-1]; - /* fast path for float64 */ - if (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(op1))) - goto handle_float64; -#ifdef CONFIG_BIGNUM - if (JS_IsObject(op1)) { - JSValue val; - int ret = js_call_unary_op_fallback(ctx, &val, op1, op); - if (ret < 0) - return -1; - if (ret) { - JS_FreeValue(ctx, op1); - sp[-1] = val; - return 0; - } - } -#endif - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) - goto exception; - tag = JS_VALUE_GET_TAG(op1); - switch(tag) { - case JS_TAG_INT: - { - int64_t v64; - v64 = JS_VALUE_GET_INT(op1); - switch(op) { - case OP_inc: - case OP_dec: - v = 2 * (op - OP_dec) - 1; - v64 += v; - break; - case OP_plus: - break; - case OP_neg: - if (v64 == 0) { - sp[-1] = __JS_NewFloat64(ctx, -0.0); - return 0; - } else { - v64 = -v64; - } - break; - default: - abort(); - } - sp[-1] = JS_NewInt64(ctx, v64); - } - break; - case JS_TAG_BIG_INT: - handle_bigint: - if (ctx->rt->bigint_ops.unary_arith(ctx, sp - 1, op, op1)) - goto exception; - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - if (ctx->rt->bigfloat_ops.unary_arith(ctx, sp - 1, op, op1)) - goto exception; - break; - case JS_TAG_BIG_DECIMAL: - if (ctx->rt->bigdecimal_ops.unary_arith(ctx, sp - 1, op, op1)) - goto exception; - break; -#endif - default: - handle_float64: - { - double d; - if (is_math_mode(ctx)) - goto handle_bigint; - d = JS_VALUE_GET_FLOAT64(op1); - switch(op) { - case OP_inc: - case OP_dec: - v = 2 * (op - OP_dec) - 1; - d += v; - break; - case OP_plus: - break; - case OP_neg: - d = -d; - break; - default: - abort(); - } - sp[-1] = __JS_NewFloat64(ctx, d); - } - break; - } - return 0; - exception: - sp[-1] = JS_UNDEFINED; - return -1; -} - -static __exception int js_post_inc_slow(JSContext *ctx, - JSValue *sp, OPCodeEnum op) -{ - JSValue op1; - - /* XXX: allow custom operators */ - op1 = sp[-1]; - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - sp[-1] = JS_UNDEFINED; - return -1; - } - sp[-1] = op1; - sp[0] = JS_DupValue(ctx, op1); - return js_unary_arith_slow(ctx, sp + 1, op - OP_post_dec + OP_dec); -} - -static no_inline int js_not_slow(JSContext *ctx, JSValue *sp) -{ - JSValue op1; - - op1 = sp[-1]; -#ifdef CONFIG_BIGNUM - if (JS_IsObject(op1)) { - JSValue val; - int ret = js_call_unary_op_fallback(ctx, &val, op1, OP_not); - if (ret < 0) - return -1; - if (ret) { - JS_FreeValue(ctx, op1); - sp[-1] = val; - return 0; - } - } -#endif - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) - goto exception; - if (is_math_mode(ctx) || JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT) { - if (ctx->rt->bigint_ops.unary_arith(ctx, sp - 1, OP_not, op1)) - goto exception; - } else { - int32_t v1; - if (unlikely(JS_ToInt32Free(ctx, &v1, op1))) - goto exception; - sp[-1] = JS_NewInt32(ctx, ~v1); - } - return 0; - exception: - sp[-1] = JS_UNDEFINED; - return -1; -} - -static int js_binary_arith_bigint(JSContext *ctx, OPCodeEnum op, - JSValue *pres, JSValue op1, JSValue op2) -{ - bf_t a_s, b_s, *r, *a, *b; - int ret; - JSValue res; - - res = JS_NewBigInt(ctx); - if (JS_IsException(res)) - goto fail; - a = JS_ToBigInt(ctx, &a_s, op1); - if (!a) - goto fail; - b = JS_ToBigInt(ctx, &b_s, op2); - if (!b) { - JS_FreeBigInt(ctx, a, &a_s); - goto fail; - } - r = JS_GetBigInt(res); - ret = 0; - switch(op) { - case OP_add: - ret = bf_add(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_sub: - ret = bf_sub(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_mul: - ret = bf_mul(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_div: - if (!is_math_mode(ctx)) { - bf_t rem_s, *rem = &rem_s; - bf_init(ctx->bf_ctx, rem); - ret = bf_divrem(r, rem, a, b, BF_PREC_INF, BF_RNDZ, - BF_RNDZ); - bf_delete(rem); - } else { - goto math_mode_div_pow; - } - break; -#ifdef CONFIG_BIGNUM - case OP_math_mod: - /* Euclidian remainder */ - ret = bf_rem(r, a, b, BF_PREC_INF, BF_RNDZ, - BF_DIVREM_EUCLIDIAN) & BF_ST_INVALID_OP; - break; -#endif - case OP_mod: - ret = bf_rem(r, a, b, BF_PREC_INF, BF_RNDZ, - BF_RNDZ) & BF_ST_INVALID_OP; - break; - case OP_pow: - if (b->sign) { - if (!is_math_mode(ctx)) { - ret = BF_ST_INVALID_OP; - } else { - math_mode_div_pow: -#ifdef CONFIG_BIGNUM - JS_FreeValue(ctx, res); - ret = js_call_binary_op_simple(ctx, &res, ctx->class_proto[JS_CLASS_BIG_INT], op1, op2, op); - if (ret != 0) { - JS_FreeBigInt(ctx, a, &a_s); - JS_FreeBigInt(ctx, b, &b_s); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (ret < 0) { - return -1; - } else { - *pres = res; - return 0; - } - } - /* if no BigInt power operator defined, return a - bigfloat */ - res = JS_NewBigFloat(ctx); - if (JS_IsException(res)) { - JS_FreeBigInt(ctx, a, &a_s); - JS_FreeBigInt(ctx, b, &b_s); - goto fail; - } - r = JS_GetBigFloat(res); - if (op == OP_div) { - ret = bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags) & BF_ST_MEM_ERROR; - } else { - ret = bf_pow(r, a, b, ctx->fp_env.prec, - ctx->fp_env.flags | BF_POW_JS_QUIRKS) & BF_ST_MEM_ERROR; - } - JS_FreeBigInt(ctx, a, &a_s); - JS_FreeBigInt(ctx, b, &b_s); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (unlikely(ret)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - *pres = res; - return 0; -#else - abort(); -#endif - } - } else { - ret = bf_pow(r, a, b, BF_PREC_INF, BF_RNDZ | BF_POW_JS_QUIRKS); - } - break; - - /* logical operations */ - case OP_shl: - case OP_sar: - { - slimb_t v2; -#if LIMB_BITS == 32 - bf_get_int32(&v2, b, 0); - if (v2 == INT32_MIN) - v2 = INT32_MIN + 1; -#else - bf_get_int64(&v2, b, 0); - if (v2 == INT64_MIN) - v2 = INT64_MIN + 1; -#endif - if (op == OP_sar) - v2 = -v2; - ret = bf_set(r, a); - ret |= bf_mul_2exp(r, v2, BF_PREC_INF, BF_RNDZ); - if (v2 < 0) { - ret |= bf_rint(r, BF_RNDD) & (BF_ST_OVERFLOW | BF_ST_MEM_ERROR); - } - } - break; - case OP_and: - ret = bf_logic_and(r, a, b); - break; - case OP_or: - ret = bf_logic_or(r, a, b); - break; - case OP_xor: - ret = bf_logic_xor(r, a, b); - break; - default: - abort(); - } - JS_FreeBigInt(ctx, a, &a_s); - JS_FreeBigInt(ctx, b, &b_s); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (unlikely(ret)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - *pres = JS_CompactBigInt(ctx, res); - return 0; - fail: - JS_FreeValue(ctx, res); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - return -1; -} - -#ifdef CONFIG_BIGNUM -static int js_binary_arith_bigfloat(JSContext *ctx, OPCodeEnum op, - JSValue *pres, JSValue op1, JSValue op2) -{ - bf_t a_s, b_s, *r, *a, *b; - int ret; - JSValue res; - - res = JS_NewBigFloat(ctx); - if (JS_IsException(res)) - goto fail; - r = JS_GetBigFloat(res); - a = JS_ToBigFloat(ctx, &a_s, op1); - if (!a) { - JS_FreeValue(ctx, res); - goto fail; - } - b = JS_ToBigFloat(ctx, &b_s, op2); - if (!b) { - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, res); - goto fail; - } - bf_init(ctx->bf_ctx, r); - switch(op) { - case OP_add: - ret = bf_add(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); - break; - case OP_sub: - ret = bf_sub(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); - break; - case OP_mul: - ret = bf_mul(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); - break; - case OP_div: - ret = bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); - break; - case OP_math_mod: - /* Euclidian remainder */ - ret = bf_rem(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags, - BF_DIVREM_EUCLIDIAN); - break; - case OP_mod: - ret = bf_rem(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags, - BF_RNDZ); - break; - case OP_pow: - ret = bf_pow(r, a, b, ctx->fp_env.prec, - ctx->fp_env.flags | BF_POW_JS_QUIRKS); - break; - default: - abort(); - } - if (a == &a_s) - bf_delete(a); - if (b == &b_s) - bf_delete(b); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (unlikely(ret & BF_ST_MEM_ERROR)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - *pres = res; - return 0; - fail: - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - return -1; -} - -/* b must be a positive integer */ -static int js_bfdec_pow(bfdec_t *r, const bfdec_t *a, const bfdec_t *b) -{ - bfdec_t b1; - int32_t b2; - int ret; - - bfdec_init(b->ctx, &b1); - ret = bfdec_set(&b1, b); - if (ret) { - bfdec_delete(&b1); - return ret; - } - ret = bfdec_rint(&b1, BF_RNDZ); - if (ret) { - bfdec_delete(&b1); - return BF_ST_INVALID_OP; /* must be an integer */ - } - ret = bfdec_get_int32(&b2, &b1); - bfdec_delete(&b1); - if (ret) - return ret; /* overflow */ - if (b2 < 0) - return BF_ST_INVALID_OP; /* must be positive */ - return bfdec_pow_ui(r, a, b2); -} - -static int js_binary_arith_bigdecimal(JSContext *ctx, OPCodeEnum op, - JSValue *pres, JSValue op1, JSValue op2) -{ - bfdec_t *r, *a, *b; - int ret; - JSValue res; - - res = JS_NewBigDecimal(ctx); - if (JS_IsException(res)) - goto fail; - r = JS_GetBigDecimal(res); - - a = JS_ToBigDecimal(ctx, op1); - if (!a) - goto fail; - b = JS_ToBigDecimal(ctx, op2); - if (!b) - goto fail; - switch(op) { - case OP_add: - ret = bfdec_add(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_sub: - ret = bfdec_sub(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_mul: - ret = bfdec_mul(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_div: - ret = bfdec_div(r, a, b, BF_PREC_INF, BF_RNDZ); - break; - case OP_math_mod: - /* Euclidian remainder */ - ret = bfdec_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_DIVREM_EUCLIDIAN); - break; - case OP_mod: - ret = bfdec_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_RNDZ); - break; - case OP_pow: - ret = js_bfdec_pow(r, a, b); - break; - default: - abort(); - } - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (unlikely(ret)) { - JS_FreeValue(ctx, res); - throw_bf_exception(ctx, ret); - return -1; - } - *pres = res; - return 0; - fail: - JS_FreeValue(ctx, res); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - return -1; -} -#endif /* CONFIG_BIGNUM */ - -static no_inline __exception int js_binary_arith_slow(JSContext *ctx, JSValue *sp, - OPCodeEnum op) -{ - JSValue op1, op2; - uint32_t tag1, tag2; - double d1, d2; - - op1 = sp[-2]; - op2 = sp[-1]; - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - /* fast path for float operations */ - if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) { - d1 = JS_VALUE_GET_FLOAT64(op1); - d2 = JS_VALUE_GET_FLOAT64(op2); - goto handle_float64; - } - -#ifdef CONFIG_BIGNUM - /* try to call an overloaded operator */ - if ((tag1 == JS_TAG_OBJECT && - (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) || - (tag2 == JS_TAG_OBJECT && - (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) { - JSValue res; - int ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op, TRUE, 0); - if (ret != 0) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (ret < 0) { - goto exception; - } else { - sp[-2] = res; - return 0; - } - } - } -#endif - - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToNumericFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - - if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) { - int32_t v1, v2; - int64_t v; - v1 = JS_VALUE_GET_INT(op1); - v2 = JS_VALUE_GET_INT(op2); - switch(op) { - case OP_sub: - v = (int64_t)v1 - (int64_t)v2; - break; - case OP_mul: - v = (int64_t)v1 * (int64_t)v2; - if (is_math_mode(ctx) && - (v < -MAX_SAFE_INTEGER || v > MAX_SAFE_INTEGER)) - goto handle_bigint; - if (v == 0 && (v1 | v2) < 0) { - sp[-2] = __JS_NewFloat64(ctx, -0.0); - return 0; - } - break; - case OP_div: - if (is_math_mode(ctx)) - goto handle_bigint; - sp[-2] = __JS_NewFloat64(ctx, (double)v1 / (double)v2); - return 0; -#ifdef CONFIG_BIGNUM - case OP_math_mod: - if (unlikely(v2 == 0)) { - throw_bf_exception(ctx, BF_ST_DIVIDE_ZERO); - goto exception; - } - v = (int64_t)v1 % (int64_t)v2; - if (v < 0) { - if (v2 < 0) - v -= v2; - else - v += v2; - } - break; -#endif - case OP_mod: - if (v1 < 0 || v2 <= 0) { - sp[-2] = JS_NewFloat64(ctx, fmod(v1, v2)); - return 0; - } else { - v = (int64_t)v1 % (int64_t)v2; - } - break; - case OP_pow: - if (!is_math_mode(ctx)) { - sp[-2] = JS_NewFloat64(ctx, js_pow(v1, v2)); - return 0; - } else { - goto handle_bigint; - } - break; - default: - abort(); - } - sp[-2] = JS_NewInt64(ctx, v); - } else -#ifdef CONFIG_BIGNUM - if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { - if (ctx->rt->bigdecimal_ops.binary_arith(ctx, op, sp - 2, op1, op2)) - goto exception; - } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { - if (ctx->rt->bigfloat_ops.binary_arith(ctx, op, sp - 2, op1, op2)) - goto exception; - } else -#endif - if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { - handle_bigint: - if (ctx->rt->bigint_ops.binary_arith(ctx, op, sp - 2, op1, op2)) - goto exception; - } else { - double dr; - /* float64 result */ - if (JS_ToFloat64Free(ctx, &d1, op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - if (JS_ToFloat64Free(ctx, &d2, op2)) - goto exception; - handle_float64: - if (is_math_mode(ctx) && is_safe_integer(d1) && is_safe_integer(d2)) - goto handle_bigint; - switch(op) { - case OP_sub: - dr = d1 - d2; - break; - case OP_mul: - dr = d1 * d2; - break; - case OP_div: - dr = d1 / d2; - break; - case OP_mod: - dr = fmod(d1, d2); - break; -#ifdef CONFIG_BIGNUM - case OP_math_mod: - d2 = fabs(d2); - dr = fmod(d1, d2); - /* XXX: loss of accuracy if dr < 0 */ - if (dr < 0) - dr += d2; - break; -#endif - case OP_pow: - dr = js_pow(d1, d2); - break; - default: - abort(); - } - sp[-2] = __JS_NewFloat64(ctx, dr); - } - return 0; - exception: - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -static no_inline __exception int js_add_slow(JSContext *ctx, JSValue *sp) -{ - JSValue op1, op2; - uint32_t tag1, tag2; - - op1 = sp[-2]; - op2 = sp[-1]; - - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - /* fast path for float64 */ - if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) { - double d1, d2; - d1 = JS_VALUE_GET_FLOAT64(op1); - d2 = JS_VALUE_GET_FLOAT64(op2); - sp[-2] = __JS_NewFloat64(ctx, d1 + d2); - return 0; - } - - if (tag1 == JS_TAG_OBJECT || tag2 == JS_TAG_OBJECT) { -#ifdef CONFIG_BIGNUM - /* try to call an overloaded operator */ - if ((tag1 == JS_TAG_OBJECT && - (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED && - tag2 != JS_TAG_STRING)) || - (tag2 == JS_TAG_OBJECT && - (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED && - tag1 != JS_TAG_STRING))) { - JSValue res; - int ret = js_call_binary_op_fallback(ctx, &res, op1, op2, OP_add, - FALSE, HINT_NONE); - if (ret != 0) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (ret < 0) { - goto exception; - } else { - sp[-2] = res; - return 0; - } - } - } -#endif - op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - - op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - } - - if (tag1 == JS_TAG_STRING || tag2 == JS_TAG_STRING) { - sp[-2] = JS_ConcatString(ctx, op1, op2); - if (JS_IsException(sp[-2])) - goto exception; - return 0; - } - - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToNumericFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - - if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) { - int32_t v1, v2; - int64_t v; - v1 = JS_VALUE_GET_INT(op1); - v2 = JS_VALUE_GET_INT(op2); - v = (int64_t)v1 + (int64_t)v2; - sp[-2] = JS_NewInt64(ctx, v); - } else -#ifdef CONFIG_BIGNUM - if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { - if (ctx->rt->bigdecimal_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2)) - goto exception; - } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { - if (ctx->rt->bigfloat_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2)) - goto exception; - } else -#endif - if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { - handle_bigint: - if (ctx->rt->bigint_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2)) - goto exception; - } else { - double d1, d2; - /* float64 result */ - if (JS_ToFloat64Free(ctx, &d1, op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - if (JS_ToFloat64Free(ctx, &d2, op2)) - goto exception; - if (is_math_mode(ctx) && is_safe_integer(d1) && is_safe_integer(d2)) - goto handle_bigint; - sp[-2] = __JS_NewFloat64(ctx, d1 + d2); - } - return 0; - exception: - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -static no_inline __exception int js_binary_logic_slow(JSContext *ctx, - JSValue *sp, - OPCodeEnum op) -{ - JSValue op1, op2; - uint32_t tag1, tag2; - uint32_t v1, v2, r; - - op1 = sp[-2]; - op2 = sp[-1]; - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - -#ifdef CONFIG_BIGNUM - /* try to call an overloaded operator */ - if ((tag1 == JS_TAG_OBJECT && - (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) || - (tag2 == JS_TAG_OBJECT && - (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) { - JSValue res; - int ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op, TRUE, 0); - if (ret != 0) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (ret < 0) { - goto exception; - } else { - sp[-2] = res; - return 0; - } - } - } -#endif - - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToNumericFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - - if (is_math_mode(ctx)) - goto bigint_op; - - tag1 = JS_VALUE_GET_TAG(op1); - tag2 = JS_VALUE_GET_TAG(op2); - if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { - if (tag1 != tag2) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - JS_ThrowTypeError(ctx, "both operands must be bigint"); - goto exception; - } else { - bigint_op: - if (ctx->rt->bigint_ops.binary_arith(ctx, op, sp - 2, op1, op2)) - goto exception; - } - } else { - if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v1, op1))) { - JS_FreeValue(ctx, op2); - goto exception; - } - if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v2, op2))) - goto exception; - switch(op) { - case OP_shl: - r = v1 << (v2 & 0x1f); - break; - case OP_sar: - r = (int)v1 >> (v2 & 0x1f); - break; - case OP_and: - r = v1 & v2; - break; - case OP_or: - r = v1 | v2; - break; - case OP_xor: - r = v1 ^ v2; - break; - default: - abort(); - } - sp[-2] = JS_NewInt32(ctx, r); - } - return 0; - exception: - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -/* Note: also used for bigint */ -static int js_compare_bigfloat(JSContext *ctx, OPCodeEnum op, - JSValue op1, JSValue op2) -{ - bf_t a_s, b_s, *a, *b; - int res; - - a = JS_ToBigFloat(ctx, &a_s, op1); - if (!a) { - JS_FreeValue(ctx, op2); - return -1; - } - b = JS_ToBigFloat(ctx, &b_s, op2); - if (!b) { - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, op1); - return -1; - } - switch(op) { - case OP_lt: - res = bf_cmp_lt(a, b); /* if NaN return false */ - break; - case OP_lte: - res = bf_cmp_le(a, b); /* if NaN return false */ - break; - case OP_gt: - res = bf_cmp_lt(b, a); /* if NaN return false */ - break; - case OP_gte: - res = bf_cmp_le(b, a); /* if NaN return false */ - break; - case OP_eq: - res = bf_cmp_eq(a, b); /* if NaN return false */ - break; - default: - abort(); - } - if (a == &a_s) - bf_delete(a); - if (b == &b_s) - bf_delete(b); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - return res; -} - -#ifdef CONFIG_BIGNUM -static int js_compare_bigdecimal(JSContext *ctx, OPCodeEnum op, - JSValue op1, JSValue op2) -{ - bfdec_t *a, *b; - int res; - - /* Note: binary floats are converted to bigdecimal with - toString(). It is not mathematically correct but is consistent - with the BigDecimal() constructor behavior */ - op1 = JS_ToBigDecimalFree(ctx, op1, TRUE); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - return -1; - } - op2 = JS_ToBigDecimalFree(ctx, op2, TRUE); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - return -1; - } - a = JS_ToBigDecimal(ctx, op1); /* cannot fail */ - b = JS_ToBigDecimal(ctx, op2); /* cannot fail */ - - switch(op) { - case OP_lt: - res = bfdec_cmp_lt(a, b); /* if NaN return false */ - break; - case OP_lte: - res = bfdec_cmp_le(a, b); /* if NaN return false */ - break; - case OP_gt: - res = bfdec_cmp_lt(b, a); /* if NaN return false */ - break; - case OP_gte: - res = bfdec_cmp_le(b, a); /* if NaN return false */ - break; - case OP_eq: - res = bfdec_cmp_eq(a, b); /* if NaN return false */ - break; - default: - abort(); - } - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - return res; -} -#endif /* !CONFIG_BIGNUM */ - -static no_inline int js_relational_slow(JSContext *ctx, JSValue *sp, - OPCodeEnum op) -{ - JSValue op1, op2; - int res; - uint32_t tag1, tag2; - - op1 = sp[-2]; - op2 = sp[-1]; - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); -#ifdef CONFIG_BIGNUM - /* try to call an overloaded operator */ - if ((tag1 == JS_TAG_OBJECT && - (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) || - (tag2 == JS_TAG_OBJECT && - (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) { - JSValue ret; - res = js_call_binary_op_fallback(ctx, &ret, op1, op2, op, - FALSE, HINT_NUMBER); - if (res != 0) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (res < 0) { - goto exception; - } else { - sp[-2] = ret; - return 0; - } - } - } -#endif - op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NUMBER); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NUMBER); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - - if (tag1 == JS_TAG_STRING && tag2 == JS_TAG_STRING) { - JSString *p1, *p2; - p1 = JS_VALUE_GET_STRING(op1); - p2 = JS_VALUE_GET_STRING(op2); - res = js_string_compare(ctx, p1, p2); - switch(op) { - case OP_lt: - res = (res < 0); - break; - case OP_lte: - res = (res <= 0); - break; - case OP_gt: - res = (res > 0); - break; - default: - case OP_gte: - res = (res >= 0); - break; - } - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - } else if ((tag1 <= JS_TAG_NULL || tag1 == JS_TAG_FLOAT64) && - (tag2 <= JS_TAG_NULL || tag2 == JS_TAG_FLOAT64)) { - /* fast path for float64/int */ - goto float64_compare; - } else { - if (((tag1 == JS_TAG_BIG_INT && tag2 == JS_TAG_STRING) || - (tag2 == JS_TAG_BIG_INT && tag1 == JS_TAG_STRING)) && - !is_math_mode(ctx)) { - if (tag1 == JS_TAG_STRING) { - op1 = JS_StringToBigInt(ctx, op1); - if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT) - goto invalid_bigint_string; - } - if (tag2 == JS_TAG_STRING) { - op2 = JS_StringToBigInt(ctx, op2); - if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) { - invalid_bigint_string: - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - res = FALSE; - goto done; - } - } - } else { - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToNumericFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - } - - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - -#ifdef CONFIG_BIGNUM - if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { - res = ctx->rt->bigdecimal_ops.compare(ctx, op, op1, op2); - if (res < 0) - goto exception; - } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { - res = ctx->rt->bigfloat_ops.compare(ctx, op, op1, op2); - if (res < 0) - goto exception; - } else -#endif - if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { - res = ctx->rt->bigint_ops.compare(ctx, op, op1, op2); - if (res < 0) - goto exception; - } else { - double d1, d2; - - float64_compare: - /* can use floating point comparison */ - if (tag1 == JS_TAG_FLOAT64) { - d1 = JS_VALUE_GET_FLOAT64(op1); - } else { - d1 = JS_VALUE_GET_INT(op1); - } - if (tag2 == JS_TAG_FLOAT64) { - d2 = JS_VALUE_GET_FLOAT64(op2); - } else { - d2 = JS_VALUE_GET_INT(op2); - } - switch(op) { - case OP_lt: - res = (d1 < d2); /* if NaN return false */ - break; - case OP_lte: - res = (d1 <= d2); /* if NaN return false */ - break; - case OP_gt: - res = (d1 > d2); /* if NaN return false */ - break; - default: - case OP_gte: - res = (d1 >= d2); /* if NaN return false */ - break; - } - } - } - done: - sp[-2] = JS_NewBool(ctx, res); - return 0; - exception: - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -static BOOL tag_is_number(uint32_t tag) -{ - return (tag == JS_TAG_INT || tag == JS_TAG_BIG_INT || - tag == JS_TAG_FLOAT64 -#ifdef CONFIG_BIGNUM - || tag == JS_TAG_BIG_FLOAT || tag == JS_TAG_BIG_DECIMAL -#endif - ); -} - -static no_inline __exception int js_eq_slow(JSContext *ctx, JSValue *sp, - BOOL is_neq) -{ - JSValue op1, op2; -#ifdef CONFIG_BIGNUM - JSValue ret; -#endif - int res; - uint32_t tag1, tag2; - - op1 = sp[-2]; - op2 = sp[-1]; - redo: - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - if (tag_is_number(tag1) && tag_is_number(tag2)) { - if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) { - res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2); - } else if ((tag1 == JS_TAG_FLOAT64 && - (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64)) || - (tag2 == JS_TAG_FLOAT64 && - (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64))) { - double d1, d2; - if (tag1 == JS_TAG_FLOAT64) { - d1 = JS_VALUE_GET_FLOAT64(op1); - } else { - d1 = JS_VALUE_GET_INT(op1); - } - if (tag2 == JS_TAG_FLOAT64) { - d2 = JS_VALUE_GET_FLOAT64(op2); - } else { - d2 = JS_VALUE_GET_INT(op2); - } - res = (d1 == d2); - } else -#ifdef CONFIG_BIGNUM - if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { - res = ctx->rt->bigdecimal_ops.compare(ctx, OP_eq, op1, op2); - if (res < 0) - goto exception; - } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { - res = ctx->rt->bigfloat_ops.compare(ctx, OP_eq, op1, op2); - if (res < 0) - goto exception; - } else -#endif - { - res = ctx->rt->bigint_ops.compare(ctx, OP_eq, op1, op2); - if (res < 0) - goto exception; - } - } else if (tag1 == tag2) { -#ifdef CONFIG_BIGNUM - if (tag1 == JS_TAG_OBJECT) { - /* try the fallback operator */ - res = js_call_binary_op_fallback(ctx, &ret, op1, op2, - is_neq ? OP_neq : OP_eq, - FALSE, HINT_NONE); - if (res != 0) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (res < 0) { - goto exception; - } else { - sp[-2] = ret; - return 0; - } - } - } -#endif - res = js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT); - } else if ((tag1 == JS_TAG_NULL && tag2 == JS_TAG_UNDEFINED) || - (tag2 == JS_TAG_NULL && tag1 == JS_TAG_UNDEFINED)) { - res = TRUE; - } else if ((tag1 == JS_TAG_STRING && tag_is_number(tag2)) || - (tag2 == JS_TAG_STRING && tag_is_number(tag1))) { - - if ((tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) && - !is_math_mode(ctx)) { - if (tag1 == JS_TAG_STRING) { - op1 = JS_StringToBigInt(ctx, op1); - if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT) - goto invalid_bigint_string; - } - if (tag2 == JS_TAG_STRING) { - op2 = JS_StringToBigInt(ctx, op2); - if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) { - invalid_bigint_string: - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - res = FALSE; - goto done; - } - } - } else { - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToNumericFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - } - res = js_strict_eq(ctx, op1, op2); - } else if (tag1 == JS_TAG_BOOL) { - op1 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1)); - goto redo; - } else if (tag2 == JS_TAG_BOOL) { - op2 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op2)); - goto redo; - } else if ((tag1 == JS_TAG_OBJECT && - (tag_is_number(tag2) || tag2 == JS_TAG_STRING || tag2 == JS_TAG_SYMBOL)) || - (tag2 == JS_TAG_OBJECT && - (tag_is_number(tag1) || tag1 == JS_TAG_STRING || tag1 == JS_TAG_SYMBOL))) { -#ifdef CONFIG_BIGNUM - /* try the fallback operator */ - res = js_call_binary_op_fallback(ctx, &ret, op1, op2, - is_neq ? OP_neq : OP_eq, - FALSE, HINT_NONE); - if (res != 0) { - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - if (res < 0) { - goto exception; - } else { - sp[-2] = ret; - return 0; - } - } -#endif - op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - goto redo; - } else { - /* IsHTMLDDA object is equivalent to undefined for '==' and '!=' */ - if ((JS_IsHTMLDDA(ctx, op1) && - (tag2 == JS_TAG_NULL || tag2 == JS_TAG_UNDEFINED)) || - (JS_IsHTMLDDA(ctx, op2) && - (tag1 == JS_TAG_NULL || tag1 == JS_TAG_UNDEFINED))) { - res = TRUE; - } else { - res = FALSE; - } - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - } - done: - sp[-2] = JS_NewBool(ctx, res ^ is_neq); - return 0; - exception: - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -static no_inline int js_shr_slow(JSContext *ctx, JSValue *sp) -{ - JSValue op1, op2; - uint32_t v1, v2, r; - - op1 = sp[-2]; - op2 = sp[-1]; - op1 = JS_ToNumericFree(ctx, op1); - if (JS_IsException(op1)) { - JS_FreeValue(ctx, op2); - goto exception; - } - op2 = JS_ToNumericFree(ctx, op2); - if (JS_IsException(op2)) { - JS_FreeValue(ctx, op1); - goto exception; - } - /* XXX: could forbid >>> in bignum mode */ - if (!is_math_mode(ctx) && - (JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT || - JS_VALUE_GET_TAG(op2) == JS_TAG_BIG_INT)) { - JS_ThrowTypeError(ctx, "bigint operands are forbidden for >>>"); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - goto exception; - } - /* cannot give an exception */ - JS_ToUint32Free(ctx, &v1, op1); - JS_ToUint32Free(ctx, &v2, op2); - r = v1 >> (v2 & 0x1f); - sp[-2] = JS_NewUint32(ctx, r); - return 0; - exception: - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -#ifdef CONFIG_BIGNUM -static JSValue js_mul_pow10_to_float64(JSContext *ctx, const bf_t *a, - int64_t exponent) -{ - bf_t r_s, *r = &r_s; - double d; - int ret; - - /* always convert to Float64 */ - bf_init(ctx->bf_ctx, r); - ret = bf_mul_pow_radix(r, a, 10, exponent, - 53, bf_set_exp_bits(11) | BF_RNDN | - BF_FLAG_SUBNORMAL); - bf_get_float64(r, &d, BF_RNDN); - bf_delete(r); - if (ret & BF_ST_MEM_ERROR) - return JS_ThrowOutOfMemory(ctx); - else - return __JS_NewFloat64(ctx, d); -} - -static no_inline int js_mul_pow10(JSContext *ctx, JSValue *sp) -{ - bf_t a_s, *a, *r; - JSValue op1, op2, res; - int64_t e; - int ret; - - res = JS_NewBigFloat(ctx); - if (JS_IsException(res)) - return -1; - r = JS_GetBigFloat(res); - op1 = sp[-2]; - op2 = sp[-1]; - a = JS_ToBigFloat(ctx, &a_s, op1); - if (!a) { - JS_FreeValue(ctx, res); - return -1; - } - if (JS_IsBigInt(ctx, op2)) { - ret = JS_ToBigInt64(ctx, &e, op2); - } else { - ret = JS_ToInt64(ctx, &e, op2); - } - if (ret) { - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, res); - return -1; - } - - bf_mul_pow_radix(r, a, 10, e, ctx->fp_env.prec, ctx->fp_env.flags); - if (a == &a_s) - bf_delete(a); - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - sp[-2] = res; - return 0; -} -#endif - -/* XXX: Should take JSValueConst arguments */ -static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2, - JSStrictEqModeEnum eq_mode) -{ - BOOL res; - int tag1, tag2; - double d1, d2; - - tag1 = JS_VALUE_GET_NORM_TAG(op1); - tag2 = JS_VALUE_GET_NORM_TAG(op2); - switch(tag1) { - case JS_TAG_BOOL: - if (tag1 != tag2) { - res = FALSE; - } else { - res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2); - goto done_no_free; - } - break; - case JS_TAG_NULL: - case JS_TAG_UNDEFINED: - res = (tag1 == tag2); - break; - case JS_TAG_STRING: - { - JSString *p1, *p2; - if (tag1 != tag2) { - res = FALSE; - } else { - p1 = JS_VALUE_GET_STRING(op1); - p2 = JS_VALUE_GET_STRING(op2); - res = (js_string_compare(ctx, p1, p2) == 0); - } - } - break; - case JS_TAG_SYMBOL: - { - JSAtomStruct *p1, *p2; - if (tag1 != tag2) { - res = FALSE; - } else { - p1 = JS_VALUE_GET_PTR(op1); - p2 = JS_VALUE_GET_PTR(op2); - res = (p1 == p2); - } - } - break; - case JS_TAG_OBJECT: - if (tag1 != tag2) - res = FALSE; - else - res = JS_VALUE_GET_OBJ(op1) == JS_VALUE_GET_OBJ(op2); - break; - case JS_TAG_INT: - d1 = JS_VALUE_GET_INT(op1); - if (tag2 == JS_TAG_INT) { - d2 = JS_VALUE_GET_INT(op2); - goto number_test; - } else if (tag2 == JS_TAG_FLOAT64) { - d2 = JS_VALUE_GET_FLOAT64(op2); - goto number_test; - } else { - res = FALSE; - } - break; - case JS_TAG_FLOAT64: - d1 = JS_VALUE_GET_FLOAT64(op1); - if (tag2 == JS_TAG_FLOAT64) { - d2 = JS_VALUE_GET_FLOAT64(op2); - } else if (tag2 == JS_TAG_INT) { - d2 = JS_VALUE_GET_INT(op2); - } else { - res = FALSE; - break; - } - number_test: - if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) { - JSFloat64Union u1, u2; - /* NaN is not always normalized, so this test is necessary */ - if (isnan(d1) || isnan(d2)) { - res = isnan(d1) == isnan(d2); - } else if (eq_mode == JS_EQ_SAME_VALUE_ZERO) { - res = (d1 == d2); /* +0 == -0 */ - } else { - u1.d = d1; - u2.d = d2; - res = (u1.u64 == u2.u64); /* +0 != -0 */ - } - } else { - res = (d1 == d2); /* if NaN return false and +0 == -0 */ - } - goto done_no_free; - case JS_TAG_BIG_INT: - { - bf_t a_s, *a, b_s, *b; - if (tag1 != tag2) { - res = FALSE; - break; - } - a = JS_ToBigFloat(ctx, &a_s, op1); /* cannot fail */ - b = JS_ToBigFloat(ctx, &b_s, op2); /* cannot fail */ - res = bf_cmp_eq(a, b); - if (a == &a_s) - bf_delete(a); - if (b == &b_s) - bf_delete(b); - } - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - { - JSBigFloat *p1, *p2; - const bf_t *a, *b; - if (tag1 != tag2) { - res = FALSE; - break; - } - p1 = JS_VALUE_GET_PTR(op1); - p2 = JS_VALUE_GET_PTR(op2); - a = &p1->num; - b = &p2->num; - if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) { - if (eq_mode == JS_EQ_SAME_VALUE_ZERO && - a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO) { - res = TRUE; - } else { - res = (bf_cmp_full(a, b) == 0); - } - } else { - res = bf_cmp_eq(a, b); - } - } - break; - case JS_TAG_BIG_DECIMAL: - { - JSBigDecimal *p1, *p2; - const bfdec_t *a, *b; - if (tag1 != tag2) { - res = FALSE; - break; - } - p1 = JS_VALUE_GET_PTR(op1); - p2 = JS_VALUE_GET_PTR(op2); - a = &p1->num; - b = &p2->num; - res = bfdec_cmp_eq(a, b); - } - break; -#endif - default: - res = FALSE; - break; - } - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - done_no_free: - return res; -} - -static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2) -{ - return js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT); -} - -static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2) -{ - return js_strict_eq2(ctx, - JS_DupValue(ctx, op1), JS_DupValue(ctx, op2), - JS_EQ_SAME_VALUE); -} - -static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2) -{ - return js_strict_eq2(ctx, - JS_DupValue(ctx, op1), JS_DupValue(ctx, op2), - JS_EQ_SAME_VALUE_ZERO); -} - -static no_inline int js_strict_eq_slow(JSContext *ctx, JSValue *sp, - BOOL is_neq) -{ - BOOL res; - res = js_strict_eq(ctx, sp[-2], sp[-1]); - sp[-2] = JS_NewBool(ctx, res ^ is_neq); - return 0; -} - -static __exception int js_operator_in(JSContext *ctx, JSValue *sp) -{ - JSValue op1, op2; - JSAtom atom; - int ret; - - op1 = sp[-2]; - op2 = sp[-1]; - - if (JS_VALUE_GET_TAG(op2) != JS_TAG_OBJECT) { - JS_ThrowTypeError(ctx, "invalid 'in' operand"); - return -1; - } - atom = JS_ValueToAtom(ctx, op1); - if (unlikely(atom == JS_ATOM_NULL)) - return -1; - ret = JS_HasProperty(ctx, op2, atom); - JS_FreeAtom(ctx, atom); - if (ret < 0) - return -1; - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - sp[-2] = JS_NewBool(ctx, ret); - return 0; -} - -static __exception int js_operator_private_in(JSContext *ctx, JSValue *sp) -{ - JSValue op1, op2; - int ret; - - op1 = sp[-2]; /* object */ - op2 = sp[-1]; /* field name or method function */ - - if (JS_VALUE_GET_TAG(op1) != JS_TAG_OBJECT) { - JS_ThrowTypeError(ctx, "invalid 'in' operand"); - return -1; - } - if (JS_IsObject(op2)) { - /* method: use the brand */ - ret = JS_CheckBrand(ctx, op1, op2); - if (ret < 0) - return -1; - } else { - JSAtom atom; - JSObject *p; - JSShapeProperty *prs; - JSProperty *pr; - /* field */ - atom = JS_ValueToAtom(ctx, op2); - if (unlikely(atom == JS_ATOM_NULL)) - return -1; - p = JS_VALUE_GET_OBJ(op1); - prs = find_own_property(&pr, p, atom); - JS_FreeAtom(ctx, atom); - ret = (prs != NULL); - } - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - sp[-2] = JS_NewBool(ctx, ret); - return 0; -} - -static __exception int js_has_unscopable(JSContext *ctx, JSValueConst obj, - JSAtom atom) -{ - JSValue arr, val; - int ret; - - arr = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_unscopables); - if (JS_IsException(arr)) - return -1; - ret = 0; - if (JS_IsObject(arr)) { - val = JS_GetProperty(ctx, arr, atom); - ret = JS_ToBoolFree(ctx, val); - } - JS_FreeValue(ctx, arr); - return ret; -} - -static __exception int js_operator_instanceof(JSContext *ctx, JSValue *sp) -{ - JSValue op1, op2; - BOOL ret; - - op1 = sp[-2]; - op2 = sp[-1]; - ret = JS_IsInstanceOf(ctx, op1, op2); - if (ret < 0) - return ret; - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - sp[-2] = JS_NewBool(ctx, ret); - return 0; -} - -static __exception int js_operator_typeof(JSContext *ctx, JSValueConst op1) -{ - JSAtom atom; - uint32_t tag; - - tag = JS_VALUE_GET_NORM_TAG(op1); - switch(tag) { - case JS_TAG_BIG_INT: - atom = JS_ATOM_bigint; - break; -#ifdef CONFIG_BIGNUM - case JS_TAG_BIG_FLOAT: - atom = JS_ATOM_bigfloat; - break; - case JS_TAG_BIG_DECIMAL: - atom = JS_ATOM_bigdecimal; - break; -#endif - case JS_TAG_INT: - case JS_TAG_FLOAT64: - atom = JS_ATOM_number; - break; - case JS_TAG_UNDEFINED: - atom = JS_ATOM_undefined; - break; - case JS_TAG_BOOL: - atom = JS_ATOM_boolean; - break; - case JS_TAG_STRING: - atom = JS_ATOM_string; - break; - case JS_TAG_OBJECT: - { - JSObject *p; - p = JS_VALUE_GET_OBJ(op1); - if (unlikely(p->is_HTMLDDA)) - atom = JS_ATOM_undefined; - else if (JS_IsFunction(ctx, op1)) - atom = JS_ATOM_function; - else - goto obj_type; - } - break; - case JS_TAG_NULL: - obj_type: - atom = JS_ATOM_object; - break; - case JS_TAG_SYMBOL: - atom = JS_ATOM_symbol; - break; - default: - atom = JS_ATOM_unknown; - break; - } - return atom; -} - -static __exception int js_operator_delete(JSContext *ctx, JSValue *sp) -{ - JSValue op1, op2; - JSAtom atom; - int ret; - - op1 = sp[-2]; - op2 = sp[-1]; - atom = JS_ValueToAtom(ctx, op2); - if (unlikely(atom == JS_ATOM_NULL)) - return -1; - ret = JS_DeleteProperty(ctx, op1, atom, JS_PROP_THROW_STRICT); - JS_FreeAtom(ctx, atom); - if (unlikely(ret < 0)) - return -1; - JS_FreeValue(ctx, op1); - JS_FreeValue(ctx, op2); - sp[-2] = JS_NewBool(ctx, ret); - return 0; -} - -static JSValue js_throw_type_error(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - return JS_ThrowTypeError(ctx, "invalid property access"); -} - -/* XXX: not 100% compatible, but mozilla seems to use a similar - implementation to ensure that caller in non strict mode does not - throw (ES5 compatibility) */ -static JSValue js_function_proto_caller(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv) -{ - JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val); - if (!b || (b->js_mode & JS_MODE_STRICT) || !b->has_prototype) { - return js_throw_type_error(ctx, this_val, 0, NULL); - } - return JS_UNDEFINED; -} - -static JSValue js_function_proto_fileName(JSContext *ctx, - JSValueConst this_val) -{ - JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val); - if (b && b->has_debug) { - return JS_AtomToString(ctx, b->debug.filename); - } - return JS_UNDEFINED; -} - -static JSValue js_function_proto_lineNumber(JSContext *ctx, - JSValueConst this_val) -{ - JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val); - if (b && b->has_debug) { - return JS_NewInt32(ctx, b->debug.line_num); - } - return JS_UNDEFINED; -} - -static int js_arguments_define_own_property(JSContext *ctx, - JSValueConst this_obj, - JSAtom prop, JSValueConst val, - JSValueConst getter, JSValueConst setter, int flags) -{ - JSObject *p; - uint32_t idx; - p = JS_VALUE_GET_OBJ(this_obj); - /* convert to normal array when redefining an existing numeric field */ - if (p->fast_array && JS_AtomIsArrayIndex(ctx, &idx, prop) && - idx < p->u.array.count) { - if (convert_fast_array_to_array(ctx, p)) - return -1; - } - /* run the default define own property */ - return JS_DefineProperty(ctx, this_obj, prop, val, getter, setter, - flags | JS_PROP_NO_EXOTIC); -} - -static const JSClassExoticMethods js_arguments_exotic_methods = { - .define_own_property = js_arguments_define_own_property, -}; - -static JSValue js_build_arguments(JSContext *ctx, int argc, JSValueConst *argv) -{ - JSValue val, *tab; - JSProperty *pr; - JSObject *p; - int i; - - val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], - JS_CLASS_ARGUMENTS); - if (JS_IsException(val)) - return val; - p = JS_VALUE_GET_OBJ(val); - - /* add the length field (cannot fail) */ - pr = add_property(ctx, p, JS_ATOM_length, - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - pr->u.value = JS_NewInt32(ctx, argc); - - /* initialize the fast array part */ - tab = NULL; - if (argc > 0) { - tab = js_malloc(ctx, sizeof(tab[0]) * argc); - if (!tab) { - JS_FreeValue(ctx, val); - return JS_EXCEPTION; - } - for(i = 0; i < argc; i++) { - tab[i] = JS_DupValue(ctx, argv[i]); - } - } - p->u.array.u.values = tab; - p->u.array.count = argc; - - JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator, - JS_DupValue(ctx, ctx->array_proto_values), - JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE); - /* add callee property to throw a TypeError in strict mode */ - JS_DefineProperty(ctx, val, JS_ATOM_callee, JS_UNDEFINED, - ctx->throw_type_error, ctx->throw_type_error, - JS_PROP_HAS_GET | JS_PROP_HAS_SET); - return val; -} - -#define GLOBAL_VAR_OFFSET 0x40000000 -#define ARGUMENT_VAR_OFFSET 0x20000000 - -/* legacy arguments object: add references to the function arguments */ -static JSValue js_build_mapped_arguments(JSContext *ctx, int argc, - JSValueConst *argv, - JSStackFrame *sf, int arg_count) -{ - JSValue val; - JSProperty *pr; - JSObject *p; - int i; - - val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], - JS_CLASS_MAPPED_ARGUMENTS); - if (JS_IsException(val)) - return val; - p = JS_VALUE_GET_OBJ(val); - - /* add the length field (cannot fail) */ - pr = add_property(ctx, p, JS_ATOM_length, - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - pr->u.value = JS_NewInt32(ctx, argc); - - for(i = 0; i < arg_count; i++) { - JSVarRef *var_ref; - var_ref = get_var_ref(ctx, sf, i, TRUE); - if (!var_ref) - goto fail; - pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E | JS_PROP_VARREF); - if (!pr) { - free_var_ref(ctx->rt, var_ref); - goto fail; - } - pr->u.var_ref = var_ref; - } - - /* the arguments not mapped to the arguments of the function can - be normal properties */ - for(i = arg_count; i < argc; i++) { - if (JS_DefinePropertyValueUint32(ctx, val, i, - JS_DupValue(ctx, argv[i]), - JS_PROP_C_W_E) < 0) - goto fail; - } - - JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator, - JS_DupValue(ctx, ctx->array_proto_values), - JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE); - /* callee returns this function in non strict mode */ - JS_DefinePropertyValue(ctx, val, JS_ATOM_callee, - JS_DupValue(ctx, ctx->rt->current_stack_frame->cur_func), - JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE); - return val; - fail: - JS_FreeValue(ctx, val); - return JS_EXCEPTION; -} - -static JSValue js_build_rest(JSContext *ctx, int first, int argc, JSValueConst *argv) -{ - JSValue val; - int i, ret; - - val = JS_NewArray(ctx); - if (JS_IsException(val)) - return val; - for (i = first; i < argc; i++) { - ret = JS_DefinePropertyValueUint32(ctx, val, i - first, - JS_DupValue(ctx, argv[i]), - JS_PROP_C_W_E); - if (ret < 0) { - JS_FreeValue(ctx, val); - return JS_EXCEPTION; - } - } - return val; -} - -static JSValue build_for_in_iterator(JSContext *ctx, JSValue obj) -{ - JSObject *p, *p1; - JSPropertyEnum *tab_atom; - int i; - JSValue enum_obj; - JSForInIterator *it; - uint32_t tag, tab_atom_count; - - tag = JS_VALUE_GET_TAG(obj); - if (tag != JS_TAG_OBJECT && tag != JS_TAG_NULL && tag != JS_TAG_UNDEFINED) { - obj = JS_ToObjectFree(ctx, obj); - } - - it = js_malloc(ctx, sizeof(*it)); - if (!it) { - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; - } - enum_obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_FOR_IN_ITERATOR); - if (JS_IsException(enum_obj)) { - js_free(ctx, it); - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; - } - it->is_array = FALSE; - it->obj = obj; - it->idx = 0; - it->tab_atom = NULL; - it->atom_count = 0; - it->in_prototype_chain = FALSE; - p1 = JS_VALUE_GET_OBJ(enum_obj); - p1->u.for_in_iterator = it; - - if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) - return enum_obj; - - p = JS_VALUE_GET_OBJ(obj); - if (p->fast_array) { - JSShape *sh; - JSShapeProperty *prs; - /* check that there are no enumerable normal fields */ - sh = p->shape; - for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { - if (prs->flags & JS_PROP_ENUMERABLE) - goto normal_case; - } - /* for fast arrays, we only store the number of elements */ - it->is_array = TRUE; - it->atom_count = p->u.array.count; - } else { - normal_case: - if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p, - JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) { - JS_FreeValue(ctx, enum_obj); - return JS_EXCEPTION; - } - it->tab_atom = tab_atom; - it->atom_count = tab_atom_count; - } - return enum_obj; -} - -/* obj -> enum_obj */ -static __exception int js_for_in_start(JSContext *ctx, JSValue *sp) -{ - sp[-1] = build_for_in_iterator(ctx, sp[-1]); - if (JS_IsException(sp[-1])) - return -1; - return 0; -} - -/* return -1 if exception, 0 if slow case, 1 if the enumeration is finished */ -static __exception int js_for_in_prepare_prototype_chain_enum(JSContext *ctx, - JSValueConst enum_obj) -{ - JSObject *p; - JSForInIterator *it; - JSPropertyEnum *tab_atom; - uint32_t tab_atom_count, i; - JSValue obj1; - - p = JS_VALUE_GET_OBJ(enum_obj); - it = p->u.for_in_iterator; - - /* check if there are enumerable properties in the prototype chain (fast path) */ - obj1 = JS_DupValue(ctx, it->obj); - for(;;) { - obj1 = JS_GetPrototypeFree(ctx, obj1); - if (JS_IsNull(obj1)) - break; - if (JS_IsException(obj1)) - goto fail; - if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, - JS_VALUE_GET_OBJ(obj1), - JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY)) { - JS_FreeValue(ctx, obj1); - goto fail; - } - js_free_prop_enum(ctx, tab_atom, tab_atom_count); - if (tab_atom_count != 0) { - JS_FreeValue(ctx, obj1); - goto slow_path; - } - /* must check for timeout to avoid infinite loop */ - if (js_poll_interrupts(ctx)) { - JS_FreeValue(ctx, obj1); - goto fail; - } - } - JS_FreeValue(ctx, obj1); - return 1; - - slow_path: - /* add the visited properties, even if they are not enumerable */ - if (it->is_array) { - if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, - JS_VALUE_GET_OBJ(it->obj), - JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) { - goto fail; - } - it->is_array = FALSE; - it->tab_atom = tab_atom; - it->atom_count = tab_atom_count; - } - - for(i = 0; i < it->atom_count; i++) { - if (JS_DefinePropertyValue(ctx, enum_obj, it->tab_atom[i].atom, JS_NULL, JS_PROP_ENUMERABLE) < 0) - goto fail; - } - return 0; - fail: - return -1; -} - -/* enum_obj -> enum_obj value done */ -static __exception int js_for_in_next(JSContext *ctx, JSValue *sp) -{ - JSValueConst enum_obj; - JSObject *p; - JSAtom prop; - JSForInIterator *it; - JSPropertyEnum *tab_atom; - uint32_t tab_atom_count; - int ret; - - enum_obj = sp[-1]; - /* fail safe */ - if (JS_VALUE_GET_TAG(enum_obj) != JS_TAG_OBJECT) - goto done; - p = JS_VALUE_GET_OBJ(enum_obj); - if (p->class_id != JS_CLASS_FOR_IN_ITERATOR) - goto done; - it = p->u.for_in_iterator; - - for(;;) { - if (it->idx >= it->atom_count) { - if (JS_IsNull(it->obj) || JS_IsUndefined(it->obj)) - goto done; /* not an object */ - /* no more property in the current object: look in the prototype */ - if (!it->in_prototype_chain) { - ret = js_for_in_prepare_prototype_chain_enum(ctx, enum_obj); - if (ret < 0) - return -1; - if (ret) - goto done; - it->in_prototype_chain = TRUE; - } - it->obj = JS_GetPrototypeFree(ctx, it->obj); - if (JS_IsException(it->obj)) - return -1; - if (JS_IsNull(it->obj)) - goto done; /* no more prototype */ - - /* must check for timeout to avoid infinite loop */ - if (js_poll_interrupts(ctx)) - return -1; - - if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, - JS_VALUE_GET_OBJ(it->obj), - JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) { - return -1; - } - js_free_prop_enum(ctx, it->tab_atom, it->atom_count); - it->tab_atom = tab_atom; - it->atom_count = tab_atom_count; - it->idx = 0; - } else { - if (it->is_array) { - prop = __JS_AtomFromUInt32(it->idx); - it->idx++; - } else { - BOOL is_enumerable; - prop = it->tab_atom[it->idx].atom; - is_enumerable = it->tab_atom[it->idx].is_enumerable; - it->idx++; - if (it->in_prototype_chain) { - /* slow case: we are in the prototype chain */ - ret = JS_GetOwnPropertyInternal(ctx, NULL, JS_VALUE_GET_OBJ(enum_obj), prop); - if (ret < 0) - return ret; - if (ret) - continue; /* already visited */ - /* add to the visited property list */ - if (JS_DefinePropertyValue(ctx, enum_obj, prop, JS_NULL, - JS_PROP_ENUMERABLE) < 0) - return -1; - } - if (!is_enumerable) - continue; - } - /* check if the property was deleted */ - ret = JS_GetOwnPropertyInternal(ctx, NULL, JS_VALUE_GET_OBJ(it->obj), prop); - if (ret < 0) - return ret; - if (ret) - break; - } - } - /* return the property */ - sp[0] = JS_AtomToValue(ctx, prop); - sp[1] = JS_FALSE; - return 0; - done: - /* return the end */ - sp[0] = JS_UNDEFINED; - sp[1] = JS_TRUE; - return 0; -} - -static JSValue JS_GetIterator2(JSContext *ctx, JSValueConst obj, - JSValueConst method) -{ - JSValue enum_obj; - - enum_obj = JS_Call(ctx, method, obj, 0, NULL); - if (JS_IsException(enum_obj)) - return enum_obj; - if (!JS_IsObject(enum_obj)) { - JS_FreeValue(ctx, enum_obj); - return JS_ThrowTypeErrorNotAnObject(ctx); - } - return enum_obj; -} - -static JSValue JS_GetIterator(JSContext *ctx, JSValueConst obj, BOOL is_async) -{ - JSValue method, ret, sync_iter; - - if (is_async) { - method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_asyncIterator); - if (JS_IsException(method)) - return method; - if (JS_IsUndefined(method) || JS_IsNull(method)) { - method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator); - if (JS_IsException(method)) - return method; - sync_iter = JS_GetIterator2(ctx, obj, method); - JS_FreeValue(ctx, method); - if (JS_IsException(sync_iter)) - return sync_iter; - ret = JS_CreateAsyncFromSyncIterator(ctx, sync_iter); - JS_FreeValue(ctx, sync_iter); - return ret; - } - } else { - method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator); - if (JS_IsException(method)) - return method; - } - if (!JS_IsFunction(ctx, method)) { - JS_FreeValue(ctx, method); - return JS_ThrowTypeError(ctx, "value is not iterable"); - } - ret = JS_GetIterator2(ctx, obj, method); - JS_FreeValue(ctx, method); - return ret; -} - -/* return *pdone = 2 if the iterator object is not parsed */ -static JSValue JS_IteratorNext2(JSContext *ctx, JSValueConst enum_obj, - JSValueConst method, - int argc, JSValueConst *argv, int *pdone) -{ - JSValue obj; - - /* fast path for the built-in iterators (avoid creating the - intermediate result object) */ - if (JS_IsObject(method)) { - JSObject *p = JS_VALUE_GET_OBJ(method); - if (p->class_id == JS_CLASS_C_FUNCTION && - p->u.cfunc.cproto == JS_CFUNC_iterator_next) { - JSCFunctionType func; - JSValueConst args[1]; - - /* in case the function expects one argument */ - if (argc == 0) { - args[0] = JS_UNDEFINED; - argv = args; - } - func = p->u.cfunc.c_function; - return func.iterator_next(ctx, enum_obj, argc, argv, - pdone, p->u.cfunc.magic); - } - } - obj = JS_Call(ctx, method, enum_obj, argc, argv); - if (JS_IsException(obj)) - goto fail; - if (!JS_IsObject(obj)) { - JS_FreeValue(ctx, obj); - JS_ThrowTypeError(ctx, "iterator must return an object"); - goto fail; - } - *pdone = 2; - return obj; - fail: - *pdone = FALSE; - return JS_EXCEPTION; -} - -static JSValue JS_IteratorNext(JSContext *ctx, JSValueConst enum_obj, - JSValueConst method, - int argc, JSValueConst *argv, BOOL *pdone) -{ - JSValue obj, value, done_val; - int done; - - obj = JS_IteratorNext2(ctx, enum_obj, method, argc, argv, &done); - if (JS_IsException(obj)) - goto fail; - if (done != 2) { - *pdone = done; - return obj; - } else { - done_val = JS_GetProperty(ctx, obj, JS_ATOM_done); - if (JS_IsException(done_val)) - goto fail; - *pdone = JS_ToBoolFree(ctx, done_val); - value = JS_UNDEFINED; - if (!*pdone) { - value = JS_GetProperty(ctx, obj, JS_ATOM_value); - } - JS_FreeValue(ctx, obj); - return value; - } - fail: - JS_FreeValue(ctx, obj); - *pdone = FALSE; - return JS_EXCEPTION; -} - -/* return < 0 in case of exception */ -static int JS_IteratorClose(JSContext *ctx, JSValueConst enum_obj, - BOOL is_exception_pending) -{ - JSValue method, ret, ex_obj; - int res; - - if (is_exception_pending) { - ex_obj = ctx->rt->current_exception; - ctx->rt->current_exception = JS_NULL; - res = -1; - } else { - ex_obj = JS_UNDEFINED; - res = 0; - } - method = JS_GetProperty(ctx, enum_obj, JS_ATOM_return); - if (JS_IsException(method)) { - res = -1; - goto done; - } - if (JS_IsUndefined(method) || JS_IsNull(method)) { - goto done; - } - ret = JS_CallFree(ctx, method, enum_obj, 0, NULL); - if (!is_exception_pending) { - if (JS_IsException(ret)) { - res = -1; - } else if (!JS_IsObject(ret)) { - JS_ThrowTypeErrorNotAnObject(ctx); - res = -1; - } - } - JS_FreeValue(ctx, ret); - done: - if (is_exception_pending) { - JS_Throw(ctx, ex_obj); - } - return res; -} - -/* obj -> enum_rec (3 slots) */ -static __exception int js_for_of_start(JSContext *ctx, JSValue *sp, - BOOL is_async) -{ - JSValue op1, obj, method; - op1 = sp[-1]; - obj = JS_GetIterator(ctx, op1, is_async); - if (JS_IsException(obj)) - return -1; - JS_FreeValue(ctx, op1); - sp[-1] = obj; - method = JS_GetProperty(ctx, obj, JS_ATOM_next); - if (JS_IsException(method)) - return -1; - sp[0] = method; - return 0; -} - -/* enum_rec [objs] -> enum_rec [objs] value done. There are 'offset' - objs. If 'done' is true or in case of exception, 'enum_rec' is set - to undefined. If 'done' is true, 'value' is always set to - undefined. */ -static __exception int js_for_of_next(JSContext *ctx, JSValue *sp, int offset) -{ - JSValue value = JS_UNDEFINED; - int done = 1; - - if (likely(!JS_IsUndefined(sp[offset]))) { - value = JS_IteratorNext(ctx, sp[offset], sp[offset + 1], 0, NULL, &done); - if (JS_IsException(value)) - done = -1; - if (done) { - /* value is JS_UNDEFINED or JS_EXCEPTION */ - /* replace the iteration object with undefined */ - JS_FreeValue(ctx, sp[offset]); - sp[offset] = JS_UNDEFINED; - if (done < 0) { - return -1; - } else { - JS_FreeValue(ctx, value); - value = JS_UNDEFINED; - } - } - } - sp[0] = value; - sp[1] = JS_NewBool(ctx, done); - return 0; -} - -static JSValue JS_IteratorGetCompleteValue(JSContext *ctx, JSValueConst obj, - BOOL *pdone) -{ - JSValue done_val, value; - BOOL done; - done_val = JS_GetProperty(ctx, obj, JS_ATOM_done); - if (JS_IsException(done_val)) - goto fail; - done = JS_ToBoolFree(ctx, done_val); - value = JS_GetProperty(ctx, obj, JS_ATOM_value); - if (JS_IsException(value)) - goto fail; - *pdone = done; - return value; - fail: - *pdone = FALSE; - return JS_EXCEPTION; -} - -static __exception int js_iterator_get_value_done(JSContext *ctx, JSValue *sp) -{ - JSValue obj, value; - BOOL done; - obj = sp[-1]; - if (!JS_IsObject(obj)) { - JS_ThrowTypeError(ctx, "iterator must return an object"); - return -1; - } - value = JS_IteratorGetCompleteValue(ctx, obj, &done); - if (JS_IsException(value)) - return -1; - JS_FreeValue(ctx, obj); - sp[-1] = value; - sp[0] = JS_NewBool(ctx, done); - return 0; -} - -static JSValue js_create_iterator_result(JSContext *ctx, - JSValue val, - BOOL done) -{ - JSValue obj; - obj = JS_NewObject(ctx); - if (JS_IsException(obj)) { - JS_FreeValue(ctx, val); - return obj; - } - if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_value, - val, JS_PROP_C_W_E) < 0) { - goto fail; - } - if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_done, - JS_NewBool(ctx, done), JS_PROP_C_W_E) < 0) { - fail: - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; - } - return obj; -} - -static JSValue js_array_iterator_next(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, - BOOL *pdone, int magic); - -static JSValue js_create_array_iterator(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, int magic); - -static BOOL js_is_fast_array(JSContext *ctx, JSValueConst obj) -{ - /* Try and handle fast arrays explicitly */ - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - JSObject *p = JS_VALUE_GET_OBJ(obj); - if (p->class_id == JS_CLASS_ARRAY && p->fast_array) { - return TRUE; - } - } - return FALSE; -} - -/* Access an Array's internal JSValue array if available */ -static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj, - JSValue **arrpp, uint32_t *countp) -{ - /* Try and handle fast arrays explicitly */ - if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { - JSObject *p = JS_VALUE_GET_OBJ(obj); - if (p->class_id == JS_CLASS_ARRAY && p->fast_array) { - *countp = p->u.array.count; - *arrpp = p->u.array.u.values; - return TRUE; - } - } - return FALSE; -} - -static __exception int js_append_enumerate(JSContext *ctx, JSValue *sp) -{ - JSValue iterator, enumobj, method, value; - int is_array_iterator; - JSValue *arrp; - uint32_t i, count32, pos; - - if (JS_VALUE_GET_TAG(sp[-2]) != JS_TAG_INT) { - JS_ThrowInternalError(ctx, "invalid index for append"); - return -1; - } - - pos = JS_VALUE_GET_INT(sp[-2]); - - /* XXX: further optimisations: - - use ctx->array_proto_values? - - check if array_iterator_prototype next method is built-in and - avoid constructing actual iterator object? - - build this into js_for_of_start and use in all `for (x of o)` loops - */ - iterator = JS_GetProperty(ctx, sp[-1], JS_ATOM_Symbol_iterator); - if (JS_IsException(iterator)) - return -1; - is_array_iterator = JS_IsCFunction(ctx, iterator, - (JSCFunction *)js_create_array_iterator, - JS_ITERATOR_KIND_VALUE); - JS_FreeValue(ctx, iterator); - - enumobj = JS_GetIterator(ctx, sp[-1], FALSE); - if (JS_IsException(enumobj)) - return -1; - method = JS_GetProperty(ctx, enumobj, JS_ATOM_next); - if (JS_IsException(method)) { - JS_FreeValue(ctx, enumobj); - return -1; - } - if (is_array_iterator - && JS_IsCFunction(ctx, method, (JSCFunction *)js_array_iterator_next, 0) - && js_get_fast_array(ctx, sp[-1], &arrp, &count32)) { - uint32_t len; - if (js_get_length32(ctx, &len, sp[-1])) - goto exception; - /* if len > count32, the elements >= count32 might be read in - the prototypes and might have side effects */ - if (len != count32) - goto general_case; - /* Handle fast arrays explicitly */ - for (i = 0; i < count32; i++) { - if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++, - JS_DupValue(ctx, arrp[i]), JS_PROP_C_W_E) < 0) - goto exception; - } - } else { - general_case: - for (;;) { - BOOL done; - value = JS_IteratorNext(ctx, enumobj, method, 0, NULL, &done); - if (JS_IsException(value)) - goto exception; - if (done) { - /* value is JS_UNDEFINED */ - break; - } - if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++, value, JS_PROP_C_W_E) < 0) - goto exception; - } - } - /* Note: could raise an error if too many elements */ - sp[-2] = JS_NewInt32(ctx, pos); - JS_FreeValue(ctx, enumobj); - JS_FreeValue(ctx, method); - return 0; - -exception: - JS_IteratorClose(ctx, enumobj, TRUE); - JS_FreeValue(ctx, enumobj); - JS_FreeValue(ctx, method); - return -1; -} - -static __exception int JS_CopyDataProperties(JSContext *ctx, - JSValueConst target, - JSValueConst source, - JSValueConst excluded, - BOOL setprop) -{ - JSPropertyEnum *tab_atom; - JSValue val; - uint32_t i, tab_atom_count; - JSObject *p; - JSObject *pexcl = NULL; - int ret, gpn_flags; - JSPropertyDescriptor desc; - BOOL is_enumerable; - - if (JS_VALUE_GET_TAG(source) != JS_TAG_OBJECT) - return 0; - - if (JS_VALUE_GET_TAG(excluded) == JS_TAG_OBJECT) - pexcl = JS_VALUE_GET_OBJ(excluded); - - p = JS_VALUE_GET_OBJ(source); - - gpn_flags = JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK | JS_GPN_ENUM_ONLY; - if (p->is_exotic) { - const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; - /* cannot use JS_GPN_ENUM_ONLY with e.g. proxies because it - introduces a visible change */ - if (em && em->get_own_property_names) { - gpn_flags &= ~JS_GPN_ENUM_ONLY; - } - } - if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p, - gpn_flags)) - return -1; - - for (i = 0; i < tab_atom_count; i++) { - if (pexcl) { - ret = JS_GetOwnPropertyInternal(ctx, NULL, pexcl, tab_atom[i].atom); - if (ret) { - if (ret < 0) - goto exception; - continue; - } - } - if (!(gpn_flags & JS_GPN_ENUM_ONLY)) { - /* test if the property is enumerable */ - ret = JS_GetOwnPropertyInternal(ctx, &desc, p, tab_atom[i].atom); - if (ret < 0) - goto exception; - if (!ret) - continue; - is_enumerable = (desc.flags & JS_PROP_ENUMERABLE) != 0; - js_free_desc(ctx, &desc); - if (!is_enumerable) - continue; - } - val = JS_GetProperty(ctx, source, tab_atom[i].atom); - if (JS_IsException(val)) - goto exception; - if (setprop) - ret = JS_SetProperty(ctx, target, tab_atom[i].atom, val); - else - ret = JS_DefinePropertyValue(ctx, target, tab_atom[i].atom, val, - JS_PROP_C_W_E); - if (ret < 0) - goto exception; - } - js_free_prop_enum(ctx, tab_atom, tab_atom_count); - return 0; - exception: - js_free_prop_enum(ctx, tab_atom, tab_atom_count); - return -1; -} - -/* only valid inside C functions */ -static JSValueConst JS_GetActiveFunction(JSContext *ctx) -{ - return ctx->rt->current_stack_frame->cur_func; -} - -static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf, - int var_idx, BOOL is_arg) -{ - JSVarRef *var_ref; - struct list_head *el; - - list_for_each(el, &sf->var_ref_list) { - var_ref = list_entry(el, JSVarRef, var_ref_link); - if (var_ref->var_idx == var_idx && var_ref->is_arg == is_arg) { - var_ref->header.ref_count++; - return var_ref; - } - } - /* create a new one */ - var_ref = js_malloc(ctx, sizeof(JSVarRef)); - if (!var_ref) - return NULL; - var_ref->header.ref_count = 1; - add_gc_object(ctx->rt, &var_ref->header, JS_GC_OBJ_TYPE_VAR_REF); - var_ref->is_detached = FALSE; - var_ref->is_arg = is_arg; - var_ref->var_idx = var_idx; - list_add_tail(&var_ref->var_ref_link, &sf->var_ref_list); - if (sf->js_mode & JS_MODE_ASYNC) { - /* The stack frame is detached and may be destroyed at any - time so its reference count must be increased. Calling - close_var_refs() when destroying the stack frame is not - possible because it would change the graph between the GC - objects. Another solution could be to temporarily detach - the JSVarRef of async functions during the GC. It would - have the advantage of allowing the release of unused stack - frames in a cycle. */ - var_ref->async_func = container_of(sf, JSAsyncFunctionState, frame); - var_ref->async_func->header.ref_count++; - } else { - var_ref->async_func = NULL; - } - if (is_arg) - var_ref->pvalue = &sf->arg_buf[var_idx]; - else - var_ref->pvalue = &sf->var_buf[var_idx]; - return var_ref; -} - -static JSValue js_closure2(JSContext *ctx, JSValue func_obj, - JSFunctionBytecode *b, - JSVarRef **cur_var_refs, - JSStackFrame *sf) -{ - JSObject *p; - JSVarRef **var_refs; - int i; - - p = JS_VALUE_GET_OBJ(func_obj); - p->u.func.function_bytecode = b; - p->u.func.home_object = NULL; - p->u.func.var_refs = NULL; - if (b->closure_var_count) { - var_refs = js_mallocz(ctx, sizeof(var_refs[0]) * b->closure_var_count); - if (!var_refs) - goto fail; - p->u.func.var_refs = var_refs; - for(i = 0; i < b->closure_var_count; i++) { - JSClosureVar *cv = &b->closure_var[i]; - JSVarRef *var_ref; - if (cv->is_local) { - /* reuse the existing variable reference if it already exists */ - var_ref = get_var_ref(ctx, sf, cv->var_idx, cv->is_arg); - if (!var_ref) - goto fail; - } else { - var_ref = cur_var_refs[cv->var_idx]; - var_ref->header.ref_count++; - } - var_refs[i] = var_ref; - } - } - return func_obj; - fail: - /* bfunc is freed when func_obj is freed */ - JS_FreeValue(ctx, func_obj); - return JS_EXCEPTION; -} - -static JSValue js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque) -{ - JSValue obj, this_val; - int ret; - - this_val = JS_MKPTR(JS_TAG_OBJECT, p); - obj = JS_NewObject(ctx); - if (JS_IsException(obj)) - return JS_EXCEPTION; - set_cycle_flag(ctx, obj); - set_cycle_flag(ctx, this_val); - ret = JS_DefinePropertyValue(ctx, obj, JS_ATOM_constructor, - JS_DupValue(ctx, this_val), - JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); - if (ret < 0) { - JS_FreeValue(ctx, obj); - return JS_EXCEPTION; - } - return obj; -} - -static const uint16_t func_kind_to_class_id[] = { - [JS_FUNC_NORMAL] = JS_CLASS_BYTECODE_FUNCTION, - [JS_FUNC_GENERATOR] = JS_CLASS_GENERATOR_FUNCTION, - [JS_FUNC_ASYNC] = JS_CLASS_ASYNC_FUNCTION, - [JS_FUNC_ASYNC_GENERATOR] = JS_CLASS_ASYNC_GENERATOR_FUNCTION, -}; - -static JSValue js_closure(JSContext *ctx, JSValue bfunc, - JSVarRef **cur_var_refs, - JSStackFrame *sf) -{ - JSFunctionBytecode *b; - JSValue func_obj; - JSAtom name_atom; - - b = JS_VALUE_GET_PTR(bfunc); - func_obj = JS_NewObjectClass(ctx, func_kind_to_class_id[b->func_kind]); - if (JS_IsException(func_obj)) { - JS_FreeValue(ctx, bfunc); - return JS_EXCEPTION; - } - func_obj = js_closure2(ctx, func_obj, b, cur_var_refs, sf); - if (JS_IsException(func_obj)) { - /* bfunc has been freed */ - goto fail; - } - name_atom = b->func_name; - if (name_atom == JS_ATOM_NULL) - name_atom = JS_ATOM_empty_string; - js_function_set_properties(ctx, func_obj, name_atom, - b->defined_arg_count); - - if (b->func_kind & JS_FUNC_GENERATOR) { - JSValue proto; - int proto_class_id; - /* generators have a prototype field which is used as - prototype for the generator object */ - if (b->func_kind == JS_FUNC_ASYNC_GENERATOR) - proto_class_id = JS_CLASS_ASYNC_GENERATOR; - else - proto_class_id = JS_CLASS_GENERATOR; - proto = JS_NewObjectProto(ctx, ctx->class_proto[proto_class_id]); - if (JS_IsException(proto)) - goto fail; - JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_prototype, proto, - JS_PROP_WRITABLE); - } else if (b->has_prototype) { - /* add the 'prototype' property: delay instantiation to avoid - creating cycles for every javascript function. The prototype - object is created on the fly when first accessed */ - JS_SetConstructorBit(ctx, func_obj, TRUE); - JS_DefineAutoInitProperty(ctx, func_obj, JS_ATOM_prototype, - JS_AUTOINIT_ID_PROTOTYPE, NULL, - JS_PROP_WRITABLE); - } - return func_obj; - fail: - /* bfunc is freed when func_obj is freed */ - JS_FreeValue(ctx, func_obj); - return JS_EXCEPTION; -} - -#define JS_DEFINE_CLASS_HAS_HERITAGE (1 << 0) - -static int js_op_define_class(JSContext *ctx, JSValue *sp, - JSAtom class_name, int class_flags, - JSVarRef **cur_var_refs, - JSStackFrame *sf, BOOL is_computed_name) -{ - JSValue bfunc, parent_class, proto = JS_UNDEFINED; - JSValue ctor = JS_UNDEFINED, parent_proto = JS_UNDEFINED; - JSFunctionBytecode *b; - - parent_class = sp[-2]; - bfunc = sp[-1]; - - if (class_flags & JS_DEFINE_CLASS_HAS_HERITAGE) { - if (JS_IsNull(parent_class)) { - parent_proto = JS_NULL; - parent_class = JS_DupValue(ctx, ctx->function_proto); - } else { - if (!JS_IsConstructor(ctx, parent_class)) { - JS_ThrowTypeError(ctx, "parent class must be constructor"); - goto fail; - } - parent_proto = JS_GetProperty(ctx, parent_class, JS_ATOM_prototype); - if (JS_IsException(parent_proto)) - goto fail; - if (!JS_IsNull(parent_proto) && !JS_IsObject(parent_proto)) { - JS_ThrowTypeError(ctx, "parent prototype must be an object or null"); - goto fail; - } - } - } else { - /* parent_class is JS_UNDEFINED in this case */ - parent_proto = JS_DupValue(ctx, ctx->class_proto[JS_CLASS_OBJECT]); - parent_class = JS_DupValue(ctx, ctx->function_proto); - } - proto = JS_NewObjectProto(ctx, parent_proto); - if (JS_IsException(proto)) - goto fail; - - b = JS_VALUE_GET_PTR(bfunc); - assert(b->func_kind == JS_FUNC_NORMAL); - ctor = JS_NewObjectProtoClass(ctx, parent_class, - JS_CLASS_BYTECODE_FUNCTION); - if (JS_IsException(ctor)) - goto fail; - ctor = js_closure2(ctx, ctor, b, cur_var_refs, sf); - bfunc = JS_UNDEFINED; - if (JS_IsException(ctor)) - goto fail; - js_method_set_home_object(ctx, ctor, proto); - JS_SetConstructorBit(ctx, ctor, TRUE); - - JS_DefinePropertyValue(ctx, ctor, JS_ATOM_length, - JS_NewInt32(ctx, b->defined_arg_count), - JS_PROP_CONFIGURABLE); - - if (is_computed_name) { - if (JS_DefineObjectNameComputed(ctx, ctor, sp[-3], - JS_PROP_CONFIGURABLE) < 0) - goto fail; - } else { - if (JS_DefineObjectName(ctx, ctor, class_name, JS_PROP_CONFIGURABLE) < 0) - goto fail; - } - - /* the constructor property must be first. It can be overriden by - computed property names */ - if (JS_DefinePropertyValue(ctx, proto, JS_ATOM_constructor, - JS_DupValue(ctx, ctor), - JS_PROP_CONFIGURABLE | - JS_PROP_WRITABLE | JS_PROP_THROW) < 0) - goto fail; - /* set the prototype property */ - if (JS_DefinePropertyValue(ctx, ctor, JS_ATOM_prototype, - JS_DupValue(ctx, proto), JS_PROP_THROW) < 0) - goto fail; - set_cycle_flag(ctx, ctor); - set_cycle_flag(ctx, proto); - - JS_FreeValue(ctx, parent_proto); - JS_FreeValue(ctx, parent_class); - - sp[-2] = ctor; - sp[-1] = proto; - return 0; - fail: - JS_FreeValue(ctx, parent_class); - JS_FreeValue(ctx, parent_proto); - JS_FreeValue(ctx, bfunc); - JS_FreeValue(ctx, proto); - JS_FreeValue(ctx, ctor); - sp[-2] = JS_UNDEFINED; - sp[-1] = JS_UNDEFINED; - return -1; -} - -static void close_var_refs(JSRuntime *rt, JSStackFrame *sf) -{ - struct list_head *el, *el1; - JSVarRef *var_ref; - int var_idx; - - list_for_each_safe(el, el1, &sf->var_ref_list) { - var_ref = list_entry(el, JSVarRef, var_ref_link); - /* no need to unlink var_ref->var_ref_link as the list is never used afterwards */ - if (var_ref->async_func) - async_func_free(rt, var_ref->async_func); - var_idx = var_ref->var_idx; - if (var_ref->is_arg) - var_ref->value = JS_DupValueRT(rt, sf->arg_buf[var_idx]); - else - var_ref->value = JS_DupValueRT(rt, sf->var_buf[var_idx]); - var_ref->pvalue = &var_ref->value; - /* the reference is no longer to a local variable */ - var_ref->is_detached = TRUE; - } -} - -static void close_lexical_var(JSContext *ctx, JSStackFrame *sf, int idx, int is_arg) -{ - struct list_head *el, *el1; - JSVarRef *var_ref; - int var_idx = idx; - - list_for_each_safe(el, el1, &sf->var_ref_list) { - var_ref = list_entry(el, JSVarRef, var_ref_link); - if (var_idx == var_ref->var_idx && var_ref->is_arg == is_arg) { - list_del(&var_ref->var_ref_link); - if (var_ref->async_func) - async_func_free(ctx->rt, var_ref->async_func); - var_ref->value = JS_DupValue(ctx, sf->var_buf[var_idx]); - var_ref->pvalue = &var_ref->value; - /* the reference is no longer to a local variable */ - var_ref->is_detached = TRUE; - } - } -} - -#define JS_CALL_FLAG_COPY_ARGV (1 << 1) -#define JS_CALL_FLAG_GENERATOR (1 << 2) - -static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, int flags) -{ - JSRuntime *rt = ctx->rt; - JSCFunctionType func; - JSObject *p; - JSStackFrame sf_s, *sf = &sf_s, *prev_sf; - JSValue ret_val; - JSValueConst *arg_buf; - int arg_count, i; - JSCFunctionEnum cproto; - - p = JS_VALUE_GET_OBJ(func_obj); - cproto = p->u.cfunc.cproto; - arg_count = p->u.cfunc.length; - - /* better to always check stack overflow */ - if (js_check_stack_overflow(rt, sizeof(arg_buf[0]) * arg_count)) - return JS_ThrowStackOverflow(ctx); - - prev_sf = rt->current_stack_frame; - sf->prev_frame = prev_sf; - rt->current_stack_frame = sf; - ctx = p->u.cfunc.realm; /* change the current realm */ - -#ifdef CONFIG_BIGNUM - /* we only propagate the bignum mode as some runtime functions - test it */ - if (prev_sf) - sf->js_mode = prev_sf->js_mode & JS_MODE_MATH; - else - sf->js_mode = 0; -#else - sf->js_mode = 0; -#endif - sf->cur_func = (JSValue)func_obj; - sf->arg_count = argc; - arg_buf = argv; - - if (unlikely(argc < arg_count)) { - /* ensure that at least argc_count arguments are readable */ - arg_buf = alloca(sizeof(arg_buf[0]) * arg_count); - for(i = 0; i < argc; i++) - arg_buf[i] = argv[i]; - for(i = argc; i < arg_count; i++) - arg_buf[i] = JS_UNDEFINED; - sf->arg_count = arg_count; - } - sf->arg_buf = (JSValue*)arg_buf; - - func = p->u.cfunc.c_function; - switch(cproto) { - case JS_CFUNC_constructor: - case JS_CFUNC_constructor_or_func: - if (!(flags & JS_CALL_FLAG_CONSTRUCTOR)) { - if (cproto == JS_CFUNC_constructor) { - not_a_constructor: - ret_val = JS_ThrowTypeError(ctx, "must be called with new"); - break; - } else { - this_obj = JS_UNDEFINED; - } - } - /* here this_obj is new_target */ - /* fall thru */ - case JS_CFUNC_generic: - ret_val = func.generic(ctx, this_obj, argc, arg_buf); - break; - case JS_CFUNC_constructor_magic: - case JS_CFUNC_constructor_or_func_magic: - if (!(flags & JS_CALL_FLAG_CONSTRUCTOR)) { - if (cproto == JS_CFUNC_constructor_magic) { - goto not_a_constructor; - } else { - this_obj = JS_UNDEFINED; - } - } - /* fall thru */ - case JS_CFUNC_generic_magic: - ret_val = func.generic_magic(ctx, this_obj, argc, arg_buf, - p->u.cfunc.magic); - break; - case JS_CFUNC_getter: - ret_val = func.getter(ctx, this_obj); - break; - case JS_CFUNC_setter: - ret_val = func.setter(ctx, this_obj, arg_buf[0]); - break; - case JS_CFUNC_getter_magic: - ret_val = func.getter_magic(ctx, this_obj, p->u.cfunc.magic); - break; - case JS_CFUNC_setter_magic: - ret_val = func.setter_magic(ctx, this_obj, arg_buf[0], p->u.cfunc.magic); - break; - case JS_CFUNC_f_f: - { - double d1; - - if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) { - ret_val = JS_EXCEPTION; - break; - } - ret_val = JS_NewFloat64(ctx, func.f_f(d1)); - } - break; - case JS_CFUNC_f_f_f: - { - double d1, d2; - - if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) { - ret_val = JS_EXCEPTION; - break; - } - if (unlikely(JS_ToFloat64(ctx, &d2, arg_buf[1]))) { - ret_val = JS_EXCEPTION; - break; - } - ret_val = JS_NewFloat64(ctx, func.f_f_f(d1, d2)); - } - break; - case JS_CFUNC_iterator_next: - { - int done; - ret_val = func.iterator_next(ctx, this_obj, argc, arg_buf, - &done, p->u.cfunc.magic); - if (!JS_IsException(ret_val) && done != 2) { - ret_val = js_create_iterator_result(ctx, ret_val, done); - } - } - break; - default: - abort(); - } - - rt->current_stack_frame = sf->prev_frame; - return ret_val; -} - -static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, int flags) -{ - JSObject *p; - JSBoundFunction *bf; - JSValueConst *arg_buf, new_target; - int arg_count, i; - - p = JS_VALUE_GET_OBJ(func_obj); - bf = p->u.bound_function; - arg_count = bf->argc + argc; - if (js_check_stack_overflow(ctx->rt, sizeof(JSValue) * arg_count)) - return JS_ThrowStackOverflow(ctx); - arg_buf = alloca(sizeof(JSValue) * arg_count); - for(i = 0; i < bf->argc; i++) { - arg_buf[i] = bf->argv[i]; - } - for(i = 0; i < argc; i++) { - arg_buf[bf->argc + i] = argv[i]; - } - if (flags & JS_CALL_FLAG_CONSTRUCTOR) { - new_target = this_obj; - if (js_same_value(ctx, func_obj, new_target)) - new_target = bf->func_obj; - return JS_CallConstructor2(ctx, bf->func_obj, new_target, - arg_count, arg_buf); - } else { - return JS_Call(ctx, bf->func_obj, bf->this_val, - arg_count, arg_buf); - } -} - -/* argument of OP_special_object */ -typedef enum { - OP_SPECIAL_OBJECT_ARGUMENTS, - OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS, - OP_SPECIAL_OBJECT_THIS_FUNC, - OP_SPECIAL_OBJECT_NEW_TARGET, - OP_SPECIAL_OBJECT_HOME_OBJECT, - OP_SPECIAL_OBJECT_VAR_OBJECT, - OP_SPECIAL_OBJECT_IMPORT_META, -} OPSpecialObjectEnum; - -#define FUNC_RET_AWAIT 0 -#define FUNC_RET_YIELD 1 -#define FUNC_RET_YIELD_STAR 2 -#define FUNC_RET_INITIAL_YIELD 3 - -/* argv[] is modified if (flags & JS_CALL_FLAG_COPY_ARGV) = 0. */ -static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj, - JSValueConst this_obj, JSValueConst new_target, - int argc, JSValue *argv, int flags) -{ - JSRuntime *rt = caller_ctx->rt; - JSContext *ctx; - JSObject *p; - JSFunctionBytecode *b; - JSStackFrame sf_s, *sf = &sf_s; - const uint8_t *pc; - int opcode, arg_allocated_size, i; - JSValue *local_buf, *stack_buf, *var_buf, *arg_buf, *sp, ret_val, *pval; - JSVarRef **var_refs; - size_t alloca_size; - -#if !DIRECT_DISPATCH -#define SWITCH(pc) switch (opcode = *pc++) -#define CASE(op) case op -#define DEFAULT default -#define BREAK break -#else - static const void * const dispatch_table[256] = { -#define DEF(id, size, n_pop, n_push, f) && case_OP_ ## id, -#if SHORT_OPCODES -#define def(id, size, n_pop, n_push, f) -#else -#define def(id, size, n_pop, n_push, f) && case_default, -#endif -#include "quickjs-opcode.h" - [ OP_COUNT ... 255 ] = &&case_default - }; -#define SWITCH(pc) goto *dispatch_table[opcode = *pc++]; -#define CASE(op) case_ ## op -#define DEFAULT case_default -#define BREAK SWITCH(pc) -#endif - - if (js_poll_interrupts(caller_ctx)) - return JS_EXCEPTION; - if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)) { - if (flags & JS_CALL_FLAG_GENERATOR) { - JSAsyncFunctionState *s = JS_VALUE_GET_PTR(func_obj); - /* func_obj get contains a pointer to JSFuncAsyncState */ - /* the stack frame is already allocated */ - sf = &s->frame; - p = JS_VALUE_GET_OBJ(sf->cur_func); - b = p->u.func.function_bytecode; - ctx = b->realm; - var_refs = p->u.func.var_refs; - local_buf = arg_buf = sf->arg_buf; - var_buf = sf->var_buf; - stack_buf = sf->var_buf + b->var_count; - sp = sf->cur_sp; - sf->cur_sp = NULL; /* cur_sp is NULL if the function is running */ - pc = sf->cur_pc; - sf->prev_frame = rt->current_stack_frame; - rt->current_stack_frame = sf; - if (s->throw_flag) - goto exception; - else - goto restart; - } else { - goto not_a_function; - } - } - p = JS_VALUE_GET_OBJ(func_obj); - if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) { - JSClassCall *call_func; - call_func = rt->class_array[p->class_id].call; - if (!call_func) { - not_a_function: - return JS_ThrowTypeError(caller_ctx, "not a function"); - } - return call_func(caller_ctx, func_obj, this_obj, argc, - (JSValueConst *)argv, flags); - } - b = p->u.func.function_bytecode; - - if (unlikely(argc < b->arg_count || (flags & JS_CALL_FLAG_COPY_ARGV))) { - arg_allocated_size = b->arg_count; - } else { - arg_allocated_size = 0; - } - - alloca_size = sizeof(JSValue) * (arg_allocated_size + b->var_count + - b->stack_size); - if (js_check_stack_overflow(rt, alloca_size)) - return JS_ThrowStackOverflow(caller_ctx); - - sf->js_mode = b->js_mode; - arg_buf = argv; - sf->arg_count = argc; - sf->cur_func = (JSValue)func_obj; - init_list_head(&sf->var_ref_list); - var_refs = p->u.func.var_refs; - - local_buf = alloca(alloca_size); - if (unlikely(arg_allocated_size)) { - int n = min_int(argc, b->arg_count); - arg_buf = local_buf; - for(i = 0; i < n; i++) - arg_buf[i] = JS_DupValue(caller_ctx, argv[i]); - for(; i < b->arg_count; i++) - arg_buf[i] = JS_UNDEFINED; - sf->arg_count = b->arg_count; - } - var_buf = local_buf + arg_allocated_size; - sf->var_buf = var_buf; - sf->arg_buf = arg_buf; - - for(i = 0; i < b->var_count; i++) - var_buf[i] = JS_UNDEFINED; - - stack_buf = var_buf + b->var_count; - sp = stack_buf; - pc = b->byte_code_buf; - sf->prev_frame = rt->current_stack_frame; - rt->current_stack_frame = sf; - ctx = b->realm; /* set the current realm */ - - restart: - for(;;) { - int call_argc; - JSValue *call_argv; - - SWITCH(pc) { - CASE(OP_push_i32): - *sp++ = JS_NewInt32(ctx, get_u32(pc)); - pc += 4; - BREAK; - CASE(OP_push_const): - *sp++ = JS_DupValue(ctx, b->cpool[get_u32(pc)]); - pc += 4; - BREAK; -#if SHORT_OPCODES - CASE(OP_push_minus1): - CASE(OP_push_0): - CASE(OP_push_1): - CASE(OP_push_2): - CASE(OP_push_3): - CASE(OP_push_4): - CASE(OP_push_5): - CASE(OP_push_6): - CASE(OP_push_7): - *sp++ = JS_NewInt32(ctx, opcode - OP_push_0); - BREAK; - CASE(OP_push_i8): - *sp++ = JS_NewInt32(ctx, get_i8(pc)); - pc += 1; - BREAK; - CASE(OP_push_i16): - *sp++ = JS_NewInt32(ctx, get_i16(pc)); - pc += 2; - BREAK; - CASE(OP_push_const8): - *sp++ = JS_DupValue(ctx, b->cpool[*pc++]); - BREAK; - CASE(OP_fclosure8): - *sp++ = js_closure(ctx, JS_DupValue(ctx, b->cpool[*pc++]), var_refs, sf); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - BREAK; - CASE(OP_push_empty_string): - *sp++ = JS_AtomToString(ctx, JS_ATOM_empty_string); - BREAK; - CASE(OP_get_length): - { - JSValue val; - - val = JS_GetProperty(ctx, sp[-1], JS_ATOM_length); - if (unlikely(JS_IsException(val))) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = val; - } - BREAK; -#endif - CASE(OP_push_atom_value): - *sp++ = JS_AtomToValue(ctx, get_u32(pc)); - pc += 4; - BREAK; - CASE(OP_undefined): - *sp++ = JS_UNDEFINED; - BREAK; - CASE(OP_null): - *sp++ = JS_NULL; - BREAK; - CASE(OP_push_this): - /* OP_push_this is only called at the start of a function */ - { - JSValue val; - if (!(b->js_mode & JS_MODE_STRICT)) { - uint32_t tag = JS_VALUE_GET_TAG(this_obj); - if (likely(tag == JS_TAG_OBJECT)) - goto normal_this; - if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) { - val = JS_DupValue(ctx, ctx->global_obj); - } else { - val = JS_ToObject(ctx, this_obj); - if (JS_IsException(val)) - goto exception; - } - } else { - normal_this: - val = JS_DupValue(ctx, this_obj); - } - *sp++ = val; - } - BREAK; - CASE(OP_push_false): - *sp++ = JS_FALSE; - BREAK; - CASE(OP_push_true): - *sp++ = JS_TRUE; - BREAK; - CASE(OP_object): - *sp++ = JS_NewObject(ctx); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - BREAK; - CASE(OP_special_object): - { - int arg = *pc++; - switch(arg) { - case OP_SPECIAL_OBJECT_ARGUMENTS: - *sp++ = js_build_arguments(ctx, argc, (JSValueConst *)argv); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - break; - case OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS: - *sp++ = js_build_mapped_arguments(ctx, argc, (JSValueConst *)argv, - sf, min_int(argc, b->arg_count)); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - break; - case OP_SPECIAL_OBJECT_THIS_FUNC: - *sp++ = JS_DupValue(ctx, sf->cur_func); - break; - case OP_SPECIAL_OBJECT_NEW_TARGET: - *sp++ = JS_DupValue(ctx, new_target); - break; - case OP_SPECIAL_OBJECT_HOME_OBJECT: - { - JSObject *p1; - p1 = p->u.func.home_object; - if (unlikely(!p1)) - *sp++ = JS_UNDEFINED; - else - *sp++ = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); - } - break; - case OP_SPECIAL_OBJECT_VAR_OBJECT: - *sp++ = JS_NewObjectProto(ctx, JS_NULL); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - break; - case OP_SPECIAL_OBJECT_IMPORT_META: - *sp++ = js_import_meta(ctx); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - break; - default: - abort(); - } - } - BREAK; - CASE(OP_rest): - { - int first = get_u16(pc); - pc += 2; - *sp++ = js_build_rest(ctx, first, argc, (JSValueConst *)argv); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - } - BREAK; - - CASE(OP_drop): - JS_FreeValue(ctx, sp[-1]); - sp--; - BREAK; - CASE(OP_nip): - JS_FreeValue(ctx, sp[-2]); - sp[-2] = sp[-1]; - sp--; - BREAK; - CASE(OP_nip1): /* a b c -> b c */ - JS_FreeValue(ctx, sp[-3]); - sp[-3] = sp[-2]; - sp[-2] = sp[-1]; - sp--; - BREAK; - CASE(OP_dup): - sp[0] = JS_DupValue(ctx, sp[-1]); - sp++; - BREAK; - CASE(OP_dup2): /* a b -> a b a b */ - sp[0] = JS_DupValue(ctx, sp[-2]); - sp[1] = JS_DupValue(ctx, sp[-1]); - sp += 2; - BREAK; - CASE(OP_dup3): /* a b c -> a b c a b c */ - sp[0] = JS_DupValue(ctx, sp[-3]); - sp[1] = JS_DupValue(ctx, sp[-2]); - sp[2] = JS_DupValue(ctx, sp[-1]); - sp += 3; - BREAK; - CASE(OP_dup1): /* a b -> a a b */ - sp[0] = sp[-1]; - sp[-1] = JS_DupValue(ctx, sp[-2]); - sp++; - BREAK; - CASE(OP_insert2): /* obj a -> a obj a (dup_x1) */ - sp[0] = sp[-1]; - sp[-1] = sp[-2]; - sp[-2] = JS_DupValue(ctx, sp[0]); - sp++; - BREAK; - CASE(OP_insert3): /* obj prop a -> a obj prop a (dup_x2) */ - sp[0] = sp[-1]; - sp[-1] = sp[-2]; - sp[-2] = sp[-3]; - sp[-3] = JS_DupValue(ctx, sp[0]); - sp++; - BREAK; - CASE(OP_insert4): /* this obj prop a -> a this obj prop a */ - sp[0] = sp[-1]; - sp[-1] = sp[-2]; - sp[-2] = sp[-3]; - sp[-3] = sp[-4]; - sp[-4] = JS_DupValue(ctx, sp[0]); - sp++; - BREAK; - CASE(OP_perm3): /* obj a b -> a obj b (213) */ - { - JSValue tmp; - tmp = sp[-2]; - sp[-2] = sp[-3]; - sp[-3] = tmp; - } - BREAK; - CASE(OP_rot3l): /* x a b -> a b x (231) */ - { - JSValue tmp; - tmp = sp[-3]; - sp[-3] = sp[-2]; - sp[-2] = sp[-1]; - sp[-1] = tmp; - } - BREAK; - CASE(OP_rot4l): /* x a b c -> a b c x */ - { - JSValue tmp; - tmp = sp[-4]; - sp[-4] = sp[-3]; - sp[-3] = sp[-2]; - sp[-2] = sp[-1]; - sp[-1] = tmp; - } - BREAK; - CASE(OP_rot5l): /* x a b c d -> a b c d x */ - { - JSValue tmp; - tmp = sp[-5]; - sp[-5] = sp[-4]; - sp[-4] = sp[-3]; - sp[-3] = sp[-2]; - sp[-2] = sp[-1]; - sp[-1] = tmp; - } - BREAK; - CASE(OP_rot3r): /* a b x -> x a b (312) */ - { - JSValue tmp; - tmp = sp[-1]; - sp[-1] = sp[-2]; - sp[-2] = sp[-3]; - sp[-3] = tmp; - } - BREAK; - CASE(OP_perm4): /* obj prop a b -> a obj prop b */ - { - JSValue tmp; - tmp = sp[-2]; - sp[-2] = sp[-3]; - sp[-3] = sp[-4]; - sp[-4] = tmp; - } - BREAK; - CASE(OP_perm5): /* this obj prop a b -> a this obj prop b */ - { - JSValue tmp; - tmp = sp[-2]; - sp[-2] = sp[-3]; - sp[-3] = sp[-4]; - sp[-4] = sp[-5]; - sp[-5] = tmp; - } - BREAK; - CASE(OP_swap): /* a b -> b a */ - { - JSValue tmp; - tmp = sp[-2]; - sp[-2] = sp[-1]; - sp[-1] = tmp; - } - BREAK; - CASE(OP_swap2): /* a b c d -> c d a b */ - { - JSValue tmp1, tmp2; - tmp1 = sp[-4]; - tmp2 = sp[-3]; - sp[-4] = sp[-2]; - sp[-3] = sp[-1]; - sp[-2] = tmp1; - sp[-1] = tmp2; - } - BREAK; - - CASE(OP_fclosure): - { - JSValue bfunc = JS_DupValue(ctx, b->cpool[get_u32(pc)]); - pc += 4; - *sp++ = js_closure(ctx, bfunc, var_refs, sf); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - } - BREAK; -#if SHORT_OPCODES - CASE(OP_call0): - CASE(OP_call1): - CASE(OP_call2): - CASE(OP_call3): - call_argc = opcode - OP_call0; - goto has_call_argc; -#endif - CASE(OP_call): - CASE(OP_tail_call): - { - call_argc = get_u16(pc); - pc += 2; - goto has_call_argc; - has_call_argc: - call_argv = sp - call_argc; - sf->cur_pc = pc; - ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED, - JS_UNDEFINED, call_argc, call_argv, 0); - if (unlikely(JS_IsException(ret_val))) - goto exception; - if (opcode == OP_tail_call) - goto done; - for(i = -1; i < call_argc; i++) - JS_FreeValue(ctx, call_argv[i]); - sp -= call_argc + 1; - *sp++ = ret_val; - } - BREAK; - CASE(OP_call_constructor): - { - call_argc = get_u16(pc); - pc += 2; - call_argv = sp - call_argc; - sf->cur_pc = pc; - ret_val = JS_CallConstructorInternal(ctx, call_argv[-2], - call_argv[-1], - call_argc, call_argv, 0); - if (unlikely(JS_IsException(ret_val))) - goto exception; - for(i = -2; i < call_argc; i++) - JS_FreeValue(ctx, call_argv[i]); - sp -= call_argc + 2; - *sp++ = ret_val; - } - BREAK; - CASE(OP_call_method): - CASE(OP_tail_call_method): - { - call_argc = get_u16(pc); - pc += 2; - call_argv = sp - call_argc; - sf->cur_pc = pc; - ret_val = JS_CallInternal(ctx, call_argv[-1], call_argv[-2], - JS_UNDEFINED, call_argc, call_argv, 0); - if (unlikely(JS_IsException(ret_val))) - goto exception; - if (opcode == OP_tail_call_method) - goto done; - for(i = -2; i < call_argc; i++) - JS_FreeValue(ctx, call_argv[i]); - sp -= call_argc + 2; - *sp++ = ret_val; - } - BREAK; - CASE(OP_array_from): - { - int i, ret; - - call_argc = get_u16(pc); - pc += 2; - ret_val = JS_NewArray(ctx); - if (unlikely(JS_IsException(ret_val))) - goto exception; - call_argv = sp - call_argc; - for(i = 0; i < call_argc; i++) { - ret = JS_DefinePropertyValue(ctx, ret_val, __JS_AtomFromUInt32(i), call_argv[i], - JS_PROP_C_W_E | JS_PROP_THROW); - call_argv[i] = JS_UNDEFINED; - if (ret < 0) { - JS_FreeValue(ctx, ret_val); - goto exception; - } - } - sp -= call_argc; - *sp++ = ret_val; - } - BREAK; - - CASE(OP_apply): - { - int magic; - magic = get_u16(pc); - pc += 2; - - ret_val = js_function_apply(ctx, sp[-3], 2, (JSValueConst *)&sp[-2], magic); - if (unlikely(JS_IsException(ret_val))) - goto exception; - JS_FreeValue(ctx, sp[-3]); - JS_FreeValue(ctx, sp[-2]); - JS_FreeValue(ctx, sp[-1]); - sp -= 3; - *sp++ = ret_val; - } - BREAK; - CASE(OP_return): - ret_val = *--sp; - goto done; - CASE(OP_return_undef): - ret_val = JS_UNDEFINED; - goto done; - - CASE(OP_check_ctor_return): - /* return TRUE if 'this' should be returned */ - if (!JS_IsObject(sp[-1])) { - if (!JS_IsUndefined(sp[-1])) { - JS_ThrowTypeError(caller_ctx, "derived class constructor must return an object or undefined"); - goto exception; - } - sp[0] = JS_TRUE; - } else { - sp[0] = JS_FALSE; - } - sp++; - BREAK; - CASE(OP_check_ctor): - if (JS_IsUndefined(new_target)) { - JS_ThrowTypeError(ctx, "class constructors must be invoked with 'new'"); - goto exception; - } - BREAK; - CASE(OP_check_brand): - { - int ret = JS_CheckBrand(ctx, sp[-2], sp[-1]); - if (ret < 0) - goto exception; - if (!ret) { - JS_ThrowTypeError(ctx, "invalid brand on object"); - goto exception; - } - } - BREAK; - CASE(OP_add_brand): - if (JS_AddBrand(ctx, sp[-2], sp[-1]) < 0) - goto exception; - JS_FreeValue(ctx, sp[-2]); - JS_FreeValue(ctx, sp[-1]); - sp -= 2; - BREAK; - - CASE(OP_throw): - JS_Throw(ctx, *--sp); - goto exception; - - CASE(OP_throw_error): -#define JS_THROW_VAR_RO 0 -#define JS_THROW_VAR_REDECL 1 -#define JS_THROW_VAR_UNINITIALIZED 2 -#define JS_THROW_ERROR_DELETE_SUPER 3 -#define JS_THROW_ERROR_ITERATOR_THROW 4 - { - JSAtom atom; - int type; - atom = get_u32(pc); - type = pc[4]; - pc += 5; - if (type == JS_THROW_VAR_RO) - JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, atom); - else - if (type == JS_THROW_VAR_REDECL) - JS_ThrowSyntaxErrorVarRedeclaration(ctx, atom); - else - if (type == JS_THROW_VAR_UNINITIALIZED) - JS_ThrowReferenceErrorUninitialized(ctx, atom); - else - if (type == JS_THROW_ERROR_DELETE_SUPER) - JS_ThrowReferenceError(ctx, "unsupported reference to 'super'"); - else - if (type == JS_THROW_ERROR_ITERATOR_THROW) - JS_ThrowTypeError(ctx, "iterator does not have a throw method"); - else - JS_ThrowInternalError(ctx, "invalid throw var type %d", type); - } - goto exception; - - CASE(OP_eval): - { - JSValueConst obj; - int scope_idx; - call_argc = get_u16(pc); - scope_idx = get_u16(pc + 2) - 1; - pc += 4; - call_argv = sp - call_argc; - sf->cur_pc = pc; - if (js_same_value(ctx, call_argv[-1], ctx->eval_obj)) { - if (call_argc >= 1) - obj = call_argv[0]; - else - obj = JS_UNDEFINED; - ret_val = JS_EvalObject(ctx, JS_UNDEFINED, obj, - JS_EVAL_TYPE_DIRECT, scope_idx); - } else { - ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED, - JS_UNDEFINED, call_argc, call_argv, 0); - } - if (unlikely(JS_IsException(ret_val))) - goto exception; - for(i = -1; i < call_argc; i++) - JS_FreeValue(ctx, call_argv[i]); - sp -= call_argc + 1; - *sp++ = ret_val; - } - BREAK; - /* could merge with OP_apply */ - CASE(OP_apply_eval): - { - int scope_idx; - uint32_t len; - JSValue *tab; - JSValueConst obj; - - scope_idx = get_u16(pc) - 1; - pc += 2; - tab = build_arg_list(ctx, &len, sp[-1]); - if (!tab) - goto exception; - if (js_same_value(ctx, sp[-2], ctx->eval_obj)) { - if (len >= 1) - obj = tab[0]; - else - obj = JS_UNDEFINED; - ret_val = JS_EvalObject(ctx, JS_UNDEFINED, obj, - JS_EVAL_TYPE_DIRECT, scope_idx); - } else { - ret_val = JS_Call(ctx, sp[-2], JS_UNDEFINED, len, - (JSValueConst *)tab); - } - free_arg_list(ctx, tab, len); - if (unlikely(JS_IsException(ret_val))) - goto exception; - JS_FreeValue(ctx, sp[-2]); - JS_FreeValue(ctx, sp[-1]); - sp -= 2; - *sp++ = ret_val; - } - BREAK; - - CASE(OP_regexp): - { - sp[-2] = js_regexp_constructor_internal(ctx, JS_UNDEFINED, - sp[-2], sp[-1]); - sp--; - } - BREAK; - - CASE(OP_get_super): - { - JSValue proto; - proto = JS_GetPrototype(ctx, sp[-1]); - if (JS_IsException(proto)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = proto; - } - BREAK; - - CASE(OP_import): - { - JSValue val; - val = js_dynamic_import(ctx, sp[-1]); - if (JS_IsException(val)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = val; - } - BREAK; - - CASE(OP_check_var): - { - int ret; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - ret = JS_CheckGlobalVar(ctx, atom); - if (ret < 0) - goto exception; - *sp++ = JS_NewBool(ctx, ret); - } - BREAK; - - CASE(OP_get_var_undef): - CASE(OP_get_var): - { - JSValue val; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - val = JS_GetGlobalVar(ctx, atom, opcode - OP_get_var_undef); - if (unlikely(JS_IsException(val))) - goto exception; - *sp++ = val; - } - BREAK; - - CASE(OP_put_var): - CASE(OP_put_var_init): - { - int ret; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - ret = JS_SetGlobalVar(ctx, atom, sp[-1], opcode - OP_put_var); - sp--; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_put_var_strict): - { - int ret; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - /* sp[-2] is JS_TRUE or JS_FALSE */ - if (unlikely(!JS_VALUE_GET_INT(sp[-2]))) { - JS_ThrowReferenceErrorNotDefined(ctx, atom); - goto exception; - } - ret = JS_SetGlobalVar(ctx, atom, sp[-1], 2); - sp -= 2; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_check_define_var): - { - JSAtom atom; - int flags; - atom = get_u32(pc); - flags = pc[4]; - pc += 5; - if (JS_CheckDefineGlobalVar(ctx, atom, flags)) - goto exception; - } - BREAK; - CASE(OP_define_var): - { - JSAtom atom; - int flags; - atom = get_u32(pc); - flags = pc[4]; - pc += 5; - if (JS_DefineGlobalVar(ctx, atom, flags)) - goto exception; - } - BREAK; - CASE(OP_define_func): - { - JSAtom atom; - int flags; - atom = get_u32(pc); - flags = pc[4]; - pc += 5; - if (JS_DefineGlobalFunction(ctx, atom, sp[-1], flags)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp--; - } - BREAK; - - CASE(OP_get_loc): - { - int idx; - idx = get_u16(pc); - pc += 2; - sp[0] = JS_DupValue(ctx, var_buf[idx]); - sp++; - } - BREAK; - CASE(OP_put_loc): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, &var_buf[idx], sp[-1]); - sp--; - } - BREAK; - CASE(OP_set_loc): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, &var_buf[idx], JS_DupValue(ctx, sp[-1])); - } - BREAK; - CASE(OP_get_arg): - { - int idx; - idx = get_u16(pc); - pc += 2; - sp[0] = JS_DupValue(ctx, arg_buf[idx]); - sp++; - } - BREAK; - CASE(OP_put_arg): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, &arg_buf[idx], sp[-1]); - sp--; - } - BREAK; - CASE(OP_set_arg): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, &arg_buf[idx], JS_DupValue(ctx, sp[-1])); - } - BREAK; - -#if SHORT_OPCODES - CASE(OP_get_loc8): *sp++ = JS_DupValue(ctx, var_buf[*pc++]); BREAK; - CASE(OP_put_loc8): set_value(ctx, &var_buf[*pc++], *--sp); BREAK; - CASE(OP_set_loc8): set_value(ctx, &var_buf[*pc++], JS_DupValue(ctx, sp[-1])); BREAK; - - CASE(OP_get_loc0): *sp++ = JS_DupValue(ctx, var_buf[0]); BREAK; - CASE(OP_get_loc1): *sp++ = JS_DupValue(ctx, var_buf[1]); BREAK; - CASE(OP_get_loc2): *sp++ = JS_DupValue(ctx, var_buf[2]); BREAK; - CASE(OP_get_loc3): *sp++ = JS_DupValue(ctx, var_buf[3]); BREAK; - CASE(OP_put_loc0): set_value(ctx, &var_buf[0], *--sp); BREAK; - CASE(OP_put_loc1): set_value(ctx, &var_buf[1], *--sp); BREAK; - CASE(OP_put_loc2): set_value(ctx, &var_buf[2], *--sp); BREAK; - CASE(OP_put_loc3): set_value(ctx, &var_buf[3], *--sp); BREAK; - CASE(OP_set_loc0): set_value(ctx, &var_buf[0], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_loc1): set_value(ctx, &var_buf[1], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_loc2): set_value(ctx, &var_buf[2], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_loc3): set_value(ctx, &var_buf[3], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_get_arg0): *sp++ = JS_DupValue(ctx, arg_buf[0]); BREAK; - CASE(OP_get_arg1): *sp++ = JS_DupValue(ctx, arg_buf[1]); BREAK; - CASE(OP_get_arg2): *sp++ = JS_DupValue(ctx, arg_buf[2]); BREAK; - CASE(OP_get_arg3): *sp++ = JS_DupValue(ctx, arg_buf[3]); BREAK; - CASE(OP_put_arg0): set_value(ctx, &arg_buf[0], *--sp); BREAK; - CASE(OP_put_arg1): set_value(ctx, &arg_buf[1], *--sp); BREAK; - CASE(OP_put_arg2): set_value(ctx, &arg_buf[2], *--sp); BREAK; - CASE(OP_put_arg3): set_value(ctx, &arg_buf[3], *--sp); BREAK; - CASE(OP_set_arg0): set_value(ctx, &arg_buf[0], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_arg1): set_value(ctx, &arg_buf[1], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_arg2): set_value(ctx, &arg_buf[2], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_arg3): set_value(ctx, &arg_buf[3], JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_get_var_ref0): *sp++ = JS_DupValue(ctx, *var_refs[0]->pvalue); BREAK; - CASE(OP_get_var_ref1): *sp++ = JS_DupValue(ctx, *var_refs[1]->pvalue); BREAK; - CASE(OP_get_var_ref2): *sp++ = JS_DupValue(ctx, *var_refs[2]->pvalue); BREAK; - CASE(OP_get_var_ref3): *sp++ = JS_DupValue(ctx, *var_refs[3]->pvalue); BREAK; - CASE(OP_put_var_ref0): set_value(ctx, var_refs[0]->pvalue, *--sp); BREAK; - CASE(OP_put_var_ref1): set_value(ctx, var_refs[1]->pvalue, *--sp); BREAK; - CASE(OP_put_var_ref2): set_value(ctx, var_refs[2]->pvalue, *--sp); BREAK; - CASE(OP_put_var_ref3): set_value(ctx, var_refs[3]->pvalue, *--sp); BREAK; - CASE(OP_set_var_ref0): set_value(ctx, var_refs[0]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_var_ref1): set_value(ctx, var_refs[1]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_var_ref2): set_value(ctx, var_refs[2]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; - CASE(OP_set_var_ref3): set_value(ctx, var_refs[3]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; -#endif - - CASE(OP_get_var_ref): - { - int idx; - JSValue val; - idx = get_u16(pc); - pc += 2; - val = *var_refs[idx]->pvalue; - sp[0] = JS_DupValue(ctx, val); - sp++; - } - BREAK; - CASE(OP_put_var_ref): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, var_refs[idx]->pvalue, sp[-1]); - sp--; - } - BREAK; - CASE(OP_set_var_ref): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, var_refs[idx]->pvalue, JS_DupValue(ctx, sp[-1])); - } - BREAK; - CASE(OP_get_var_ref_check): - { - int idx; - JSValue val; - idx = get_u16(pc); - pc += 2; - val = *var_refs[idx]->pvalue; - if (unlikely(JS_IsUninitialized(val))) { - JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, TRUE); - goto exception; - } - sp[0] = JS_DupValue(ctx, val); - sp++; - } - BREAK; - CASE(OP_put_var_ref_check): - { - int idx; - idx = get_u16(pc); - pc += 2; - if (unlikely(JS_IsUninitialized(*var_refs[idx]->pvalue))) { - JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, TRUE); - goto exception; - } - set_value(ctx, var_refs[idx]->pvalue, sp[-1]); - sp--; - } - BREAK; - CASE(OP_put_var_ref_check_init): - { - int idx; - idx = get_u16(pc); - pc += 2; - if (unlikely(!JS_IsUninitialized(*var_refs[idx]->pvalue))) { - JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, TRUE); - goto exception; - } - set_value(ctx, var_refs[idx]->pvalue, sp[-1]); - sp--; - } - BREAK; - CASE(OP_set_loc_uninitialized): - { - int idx; - idx = get_u16(pc); - pc += 2; - set_value(ctx, &var_buf[idx], JS_UNINITIALIZED); - } - BREAK; - CASE(OP_get_loc_check): - { - int idx; - idx = get_u16(pc); - pc += 2; - if (unlikely(JS_IsUninitialized(var_buf[idx]))) { - JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, FALSE); - goto exception; - } - sp[0] = JS_DupValue(ctx, var_buf[idx]); - sp++; - } - BREAK; - CASE(OP_get_loc_checkthis): - { - int idx; - idx = get_u16(pc); - pc += 2; - if (unlikely(JS_IsUninitialized(var_buf[idx]))) { - JS_ThrowReferenceErrorUninitialized2(caller_ctx, b, idx, FALSE); - goto exception; - } - sp[0] = JS_DupValue(ctx, var_buf[idx]); - sp++; - } - BREAK; - CASE(OP_put_loc_check): - { - int idx; - idx = get_u16(pc); - pc += 2; - if (unlikely(JS_IsUninitialized(var_buf[idx]))) { - JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, FALSE); - goto exception; - } - set_value(ctx, &var_buf[idx], sp[-1]); - sp--; - } - BREAK; - CASE(OP_put_loc_check_init): - { - int idx; - idx = get_u16(pc); - pc += 2; - if (unlikely(!JS_IsUninitialized(var_buf[idx]))) { - JS_ThrowReferenceError(ctx, "'this' can be initialized only once"); - goto exception; - } - set_value(ctx, &var_buf[idx], sp[-1]); - sp--; - } - BREAK; - CASE(OP_close_loc): - { - int idx; - idx = get_u16(pc); - pc += 2; - close_lexical_var(ctx, sf, idx, FALSE); - } - BREAK; - - CASE(OP_make_loc_ref): - CASE(OP_make_arg_ref): - CASE(OP_make_var_ref_ref): - { - JSVarRef *var_ref; - JSProperty *pr; - JSAtom atom; - int idx; - atom = get_u32(pc); - idx = get_u16(pc + 4); - pc += 6; - *sp++ = JS_NewObjectProto(ctx, JS_NULL); - if (unlikely(JS_IsException(sp[-1]))) - goto exception; - if (opcode == OP_make_var_ref_ref) { - var_ref = var_refs[idx]; - var_ref->header.ref_count++; - } else { - var_ref = get_var_ref(ctx, sf, idx, opcode == OP_make_arg_ref); - if (!var_ref) - goto exception; - } - pr = add_property(ctx, JS_VALUE_GET_OBJ(sp[-1]), atom, - JS_PROP_WRITABLE | JS_PROP_VARREF); - if (!pr) { - free_var_ref(rt, var_ref); - goto exception; - } - pr->u.var_ref = var_ref; - *sp++ = JS_AtomToValue(ctx, atom); - } - BREAK; - CASE(OP_make_var_ref): - { - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - if (JS_GetGlobalVarRef(ctx, atom, sp)) - goto exception; - sp += 2; - } - BREAK; - - CASE(OP_goto): - pc += (int32_t)get_u32(pc); - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - BREAK; -#if SHORT_OPCODES - CASE(OP_goto16): - pc += (int16_t)get_u16(pc); - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - BREAK; - CASE(OP_goto8): - pc += (int8_t)pc[0]; - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - BREAK; -#endif - CASE(OP_if_true): - { - int res; - JSValue op1; - - op1 = sp[-1]; - pc += 4; - if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { - res = JS_VALUE_GET_INT(op1); - } else { - res = JS_ToBoolFree(ctx, op1); - } - sp--; - if (res) { - pc += (int32_t)get_u32(pc - 4) - 4; - } - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - } - BREAK; - CASE(OP_if_false): - { - int res; - JSValue op1; - - op1 = sp[-1]; - pc += 4; - if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { - res = JS_VALUE_GET_INT(op1); - } else { - res = JS_ToBoolFree(ctx, op1); - } - sp--; - if (!res) { - pc += (int32_t)get_u32(pc - 4) - 4; - } - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - } - BREAK; -#if SHORT_OPCODES - CASE(OP_if_true8): - { - int res; - JSValue op1; - - op1 = sp[-1]; - pc += 1; - if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { - res = JS_VALUE_GET_INT(op1); - } else { - res = JS_ToBoolFree(ctx, op1); - } - sp--; - if (res) { - pc += (int8_t)pc[-1] - 1; - } - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - } - BREAK; - CASE(OP_if_false8): - { - int res; - JSValue op1; - - op1 = sp[-1]; - pc += 1; - if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { - res = JS_VALUE_GET_INT(op1); - } else { - res = JS_ToBoolFree(ctx, op1); - } - sp--; - if (!res) { - pc += (int8_t)pc[-1] - 1; - } - if (unlikely(js_poll_interrupts(ctx))) - goto exception; - } - BREAK; -#endif - CASE(OP_catch): - { - int32_t diff; - diff = get_u32(pc); - sp[0] = JS_NewCatchOffset(ctx, pc + diff - b->byte_code_buf); - sp++; - pc += 4; - } - BREAK; - CASE(OP_gosub): - { - int32_t diff; - diff = get_u32(pc); - /* XXX: should have a different tag to avoid security flaw */ - sp[0] = JS_NewInt32(ctx, pc + 4 - b->byte_code_buf); - sp++; - pc += diff; - } - BREAK; - CASE(OP_ret): - { - JSValue op1; - uint32_t pos; - op1 = sp[-1]; - if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_INT)) - goto ret_fail; - pos = JS_VALUE_GET_INT(op1); - if (unlikely(pos >= b->byte_code_len)) { - ret_fail: - JS_ThrowInternalError(ctx, "invalid ret value"); - goto exception; - } - sp--; - pc = b->byte_code_buf + pos; - } - BREAK; - - CASE(OP_for_in_start): - if (js_for_in_start(ctx, sp)) - goto exception; - BREAK; - CASE(OP_for_in_next): - if (js_for_in_next(ctx, sp)) - goto exception; - sp += 2; - BREAK; - CASE(OP_for_of_start): - if (js_for_of_start(ctx, sp, FALSE)) - goto exception; - sp += 1; - *sp++ = JS_NewCatchOffset(ctx, 0); - BREAK; - CASE(OP_for_of_next): - { - int offset = -3 - pc[0]; - pc += 1; - if (js_for_of_next(ctx, sp, offset)) - goto exception; - sp += 2; - } - BREAK; - CASE(OP_for_await_of_start): - if (js_for_of_start(ctx, sp, TRUE)) - goto exception; - sp += 1; - *sp++ = JS_NewCatchOffset(ctx, 0); - BREAK; - CASE(OP_iterator_get_value_done): - if (js_iterator_get_value_done(ctx, sp)) - goto exception; - sp += 1; - BREAK; - CASE(OP_iterator_check_object): - if (unlikely(!JS_IsObject(sp[-1]))) { - JS_ThrowTypeError(ctx, "iterator must return an object"); - goto exception; - } - BREAK; - - CASE(OP_iterator_close): - /* iter_obj next catch_offset -> */ - sp--; /* drop the catch offset to avoid getting caught by exception */ - JS_FreeValue(ctx, sp[-1]); /* drop the next method */ - sp--; - if (!JS_IsUndefined(sp[-1])) { - if (JS_IteratorClose(ctx, sp[-1], FALSE)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - } - sp--; - BREAK; - CASE(OP_nip_catch): - { - JSValue ret_val; - /* catch_offset ... ret_val -> ret_eval */ - ret_val = *--sp; - while (sp > stack_buf && - JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_CATCH_OFFSET) { - JS_FreeValue(ctx, *--sp); - } - if (unlikely(sp == stack_buf)) { - JS_ThrowInternalError(ctx, "nip_catch"); - JS_FreeValue(ctx, ret_val); - goto exception; - } - sp[-1] = ret_val; - } - BREAK; - - CASE(OP_iterator_next): - /* stack: iter_obj next catch_offset val */ - { - JSValue ret; - ret = JS_Call(ctx, sp[-3], sp[-4], - 1, (JSValueConst *)(sp - 1)); - if (JS_IsException(ret)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = ret; - } - BREAK; - - CASE(OP_iterator_call): - /* stack: iter_obj next catch_offset val */ - { - JSValue method, ret; - BOOL ret_flag; - int flags; - flags = *pc++; - method = JS_GetProperty(ctx, sp[-4], (flags & 1) ? - JS_ATOM_throw : JS_ATOM_return); - if (JS_IsException(method)) - goto exception; - if (JS_IsUndefined(method) || JS_IsNull(method)) { - ret_flag = TRUE; - } else { - if (flags & 2) { - /* no argument */ - ret = JS_CallFree(ctx, method, sp[-4], - 0, NULL); - } else { - ret = JS_CallFree(ctx, method, sp[-4], - 1, (JSValueConst *)(sp - 1)); - } - if (JS_IsException(ret)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = ret; - ret_flag = FALSE; - } - sp[0] = JS_NewBool(ctx, ret_flag); - sp += 1; - } - BREAK; - - CASE(OP_lnot): - { - int res; - JSValue op1; - - op1 = sp[-1]; - if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { - res = JS_VALUE_GET_INT(op1) != 0; - } else { - res = JS_ToBoolFree(ctx, op1); - } - sp[-1] = JS_NewBool(ctx, !res); - } - BREAK; - - CASE(OP_get_field): - { - JSValue val; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - val = JS_GetProperty(ctx, sp[-1], atom); - if (unlikely(JS_IsException(val))) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = val; - } - BREAK; - - CASE(OP_get_field2): - { - JSValue val; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - val = JS_GetProperty(ctx, sp[-1], atom); - if (unlikely(JS_IsException(val))) - goto exception; - *sp++ = val; - } - BREAK; - - CASE(OP_put_field): - { - int ret; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - ret = JS_SetPropertyInternal(ctx, sp[-2], atom, sp[-1], sp[-2], - JS_PROP_THROW_STRICT); - JS_FreeValue(ctx, sp[-2]); - sp -= 2; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_private_symbol): - { - JSAtom atom; - JSValue val; - - atom = get_u32(pc); - pc += 4; - val = JS_NewSymbolFromAtom(ctx, atom, JS_ATOM_TYPE_PRIVATE); - if (JS_IsException(val)) - goto exception; - *sp++ = val; - } - BREAK; - - CASE(OP_get_private_field): - { - JSValue val; - - val = JS_GetPrivateField(ctx, sp[-2], sp[-1]); - JS_FreeValue(ctx, sp[-1]); - JS_FreeValue(ctx, sp[-2]); - sp[-2] = val; - sp--; - if (unlikely(JS_IsException(val))) - goto exception; - } - BREAK; - - CASE(OP_put_private_field): - { - int ret; - ret = JS_SetPrivateField(ctx, sp[-3], sp[-1], sp[-2]); - JS_FreeValue(ctx, sp[-3]); - JS_FreeValue(ctx, sp[-1]); - sp -= 3; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_define_private_field): - { - int ret; - ret = JS_DefinePrivateField(ctx, sp[-3], sp[-2], sp[-1]); - JS_FreeValue(ctx, sp[-2]); - sp -= 2; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_define_field): - { - int ret; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - ret = JS_DefinePropertyValue(ctx, sp[-2], atom, sp[-1], - JS_PROP_C_W_E | JS_PROP_THROW); - sp--; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_set_name): - { - int ret; - JSAtom atom; - atom = get_u32(pc); - pc += 4; - - ret = JS_DefineObjectName(ctx, sp[-1], atom, JS_PROP_CONFIGURABLE); - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - CASE(OP_set_name_computed): - { - int ret; - ret = JS_DefineObjectNameComputed(ctx, sp[-1], sp[-2], JS_PROP_CONFIGURABLE); - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - CASE(OP_set_proto): - { - JSValue proto; - proto = sp[-1]; - if (JS_IsObject(proto) || JS_IsNull(proto)) { - if (JS_SetPrototypeInternal(ctx, sp[-2], proto, TRUE) < 0) - goto exception; - } - JS_FreeValue(ctx, proto); - sp--; - } - BREAK; - CASE(OP_set_home_object): - js_method_set_home_object(ctx, sp[-1], sp[-2]); - BREAK; - CASE(OP_define_method): - CASE(OP_define_method_computed): - { - JSValue getter, setter, value; - JSValueConst obj; - JSAtom atom; - int flags, ret, op_flags; - BOOL is_computed; -#define OP_DEFINE_METHOD_METHOD 0 -#define OP_DEFINE_METHOD_GETTER 1 -#define OP_DEFINE_METHOD_SETTER 2 -#define OP_DEFINE_METHOD_ENUMERABLE 4 - - is_computed = (opcode == OP_define_method_computed); - if (is_computed) { - atom = JS_ValueToAtom(ctx, sp[-2]); - if (unlikely(atom == JS_ATOM_NULL)) - goto exception; - opcode += OP_define_method - OP_define_method_computed; - } else { - atom = get_u32(pc); - pc += 4; - } - op_flags = *pc++; - - obj = sp[-2 - is_computed]; - flags = JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE | - JS_PROP_HAS_ENUMERABLE | JS_PROP_THROW; - if (op_flags & OP_DEFINE_METHOD_ENUMERABLE) - flags |= JS_PROP_ENUMERABLE; - op_flags &= 3; - value = JS_UNDEFINED; - getter = JS_UNDEFINED; - setter = JS_UNDEFINED; - if (op_flags == OP_DEFINE_METHOD_METHOD) { - value = sp[-1]; - flags |= JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE; - } else if (op_flags == OP_DEFINE_METHOD_GETTER) { - getter = sp[-1]; - flags |= JS_PROP_HAS_GET; - } else { - setter = sp[-1]; - flags |= JS_PROP_HAS_SET; - } - ret = js_method_set_properties(ctx, sp[-1], atom, flags, obj); - if (ret >= 0) { - ret = JS_DefineProperty(ctx, obj, atom, value, - getter, setter, flags); - } - JS_FreeValue(ctx, sp[-1]); - if (is_computed) { - JS_FreeAtom(ctx, atom); - JS_FreeValue(ctx, sp[-2]); - } - sp -= 1 + is_computed; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_define_class): - CASE(OP_define_class_computed): - { - int class_flags; - JSAtom atom; - - atom = get_u32(pc); - class_flags = pc[4]; - pc += 5; - if (js_op_define_class(ctx, sp, atom, class_flags, - var_refs, sf, - (opcode == OP_define_class_computed)) < 0) - goto exception; - } - BREAK; - - CASE(OP_get_array_el): - { - JSValue val; - - val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]); - JS_FreeValue(ctx, sp[-2]); - sp[-2] = val; - sp--; - if (unlikely(JS_IsException(val))) - goto exception; - } - BREAK; - - CASE(OP_get_array_el2): - { - JSValue val; - - val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]); - sp[-1] = val; - if (unlikely(JS_IsException(val))) - goto exception; - } - BREAK; - - CASE(OP_get_ref_value): - { - JSValue val; - if (unlikely(JS_IsUndefined(sp[-2]))) { - JSAtom atom = JS_ValueToAtom(ctx, sp[-1]); - if (atom != JS_ATOM_NULL) { - JS_ThrowReferenceErrorNotDefined(ctx, atom); - JS_FreeAtom(ctx, atom); - } - goto exception; - } - val = JS_GetPropertyValue(ctx, sp[-2], - JS_DupValue(ctx, sp[-1])); - if (unlikely(JS_IsException(val))) - goto exception; - sp[0] = val; - sp++; - } - BREAK; - - CASE(OP_get_super_value): - { - JSValue val; - JSAtom atom; - atom = JS_ValueToAtom(ctx, sp[-1]); - if (unlikely(atom == JS_ATOM_NULL)) - goto exception; - val = JS_GetPropertyInternal(ctx, sp[-2], atom, sp[-3], FALSE); - JS_FreeAtom(ctx, atom); - if (unlikely(JS_IsException(val))) - goto exception; - JS_FreeValue(ctx, sp[-1]); - JS_FreeValue(ctx, sp[-2]); - JS_FreeValue(ctx, sp[-3]); - sp[-3] = val; - sp -= 2; - } - BREAK; - - CASE(OP_put_array_el): - { - int ret; - - ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], JS_PROP_THROW_STRICT); - JS_FreeValue(ctx, sp[-3]); - sp -= 3; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_put_ref_value): - { - int ret, flags; - flags = JS_PROP_THROW_STRICT; - if (unlikely(JS_IsUndefined(sp[-3]))) { - if (is_strict_mode(ctx)) { - JSAtom atom = JS_ValueToAtom(ctx, sp[-2]); - if (atom != JS_ATOM_NULL) { - JS_ThrowReferenceErrorNotDefined(ctx, atom); - JS_FreeAtom(ctx, atom); - } - goto exception; - } else { - sp[-3] = JS_DupValue(ctx, ctx->global_obj); - } - } else { - if (is_strict_mode(ctx)) - flags |= JS_PROP_NO_ADD; - } - ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], flags); - JS_FreeValue(ctx, sp[-3]); - sp -= 3; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_put_super_value): - { - int ret; - JSAtom atom; - if (JS_VALUE_GET_TAG(sp[-3]) != JS_TAG_OBJECT) { - JS_ThrowTypeErrorNotAnObject(ctx); - goto exception; - } - atom = JS_ValueToAtom(ctx, sp[-2]); - if (unlikely(atom == JS_ATOM_NULL)) - goto exception; - ret = JS_SetPropertyInternal(ctx, sp[-3], atom, sp[-1], sp[-4], - JS_PROP_THROW_STRICT); - JS_FreeAtom(ctx, atom); - JS_FreeValue(ctx, sp[-4]); - JS_FreeValue(ctx, sp[-3]); - JS_FreeValue(ctx, sp[-2]); - sp -= 4; - if (ret < 0) - goto exception; - } - BREAK; - - CASE(OP_define_array_el): - { - int ret; - ret = JS_DefinePropertyValueValue(ctx, sp[-3], JS_DupValue(ctx, sp[-2]), sp[-1], - JS_PROP_C_W_E | JS_PROP_THROW); - sp -= 1; - if (unlikely(ret < 0)) - goto exception; - } - BREAK; - - CASE(OP_append): /* array pos enumobj -- array pos */ - { - if (js_append_enumerate(ctx, sp)) - goto exception; - JS_FreeValue(ctx, *--sp); - } - BREAK; - - CASE(OP_copy_data_properties): /* target source excludeList */ - { - /* stack offsets (-1 based): - 2 bits for target, - 3 bits for source, - 2 bits for exclusionList */ - int mask; - - mask = *pc++; - if (JS_CopyDataProperties(ctx, sp[-1 - (mask & 3)], - sp[-1 - ((mask >> 2) & 7)], - sp[-1 - ((mask >> 5) & 7)], 0)) - goto exception; - } - BREAK; - - CASE(OP_add): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - int64_t r; - r = (int64_t)JS_VALUE_GET_INT(op1) + JS_VALUE_GET_INT(op2); - if (unlikely((int)r != r)) - goto add_slow; - sp[-2] = JS_NewInt32(ctx, r); - sp--; - } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) { - sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) + - JS_VALUE_GET_FLOAT64(op2)); - sp--; - } else { - add_slow: - if (js_add_slow(ctx, sp)) - goto exception; - sp--; - } - } - BREAK; - CASE(OP_add_loc): - { - JSValue *pv; - int idx; - idx = *pc; - pc += 1; - - pv = &var_buf[idx]; - if (likely(JS_VALUE_IS_BOTH_INT(*pv, sp[-1]))) { - int64_t r; - r = (int64_t)JS_VALUE_GET_INT(*pv) + - JS_VALUE_GET_INT(sp[-1]); - if (unlikely((int)r != r)) - goto add_loc_slow; - *pv = JS_NewInt32(ctx, r); - sp--; - } else if (JS_VALUE_GET_TAG(*pv) == JS_TAG_STRING) { - JSValue op1; - op1 = sp[-1]; - sp--; - op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); - if (JS_IsException(op1)) - goto exception; - op1 = JS_ConcatString(ctx, JS_DupValue(ctx, *pv), op1); - if (JS_IsException(op1)) - goto exception; - set_value(ctx, pv, op1); - } else { - JSValue ops[2]; - add_loc_slow: - /* In case of exception, js_add_slow frees ops[0] - and ops[1], so we must duplicate *pv */ - ops[0] = JS_DupValue(ctx, *pv); - ops[1] = sp[-1]; - sp--; - if (js_add_slow(ctx, ops + 2)) - goto exception; - set_value(ctx, pv, ops[0]); - } - } - BREAK; - CASE(OP_sub): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - int64_t r; - r = (int64_t)JS_VALUE_GET_INT(op1) - JS_VALUE_GET_INT(op2); - if (unlikely((int)r != r)) - goto binary_arith_slow; - sp[-2] = JS_NewInt32(ctx, r); - sp--; - } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) { - sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) - - JS_VALUE_GET_FLOAT64(op2)); - sp--; - } else { - goto binary_arith_slow; - } - } - BREAK; - CASE(OP_mul): - { - JSValue op1, op2; - double d; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - int32_t v1, v2; - int64_t r; - v1 = JS_VALUE_GET_INT(op1); - v2 = JS_VALUE_GET_INT(op2); - r = (int64_t)v1 * v2; - if (unlikely((int)r != r)) { -#ifdef CONFIG_BIGNUM - if (unlikely(sf->js_mode & JS_MODE_MATH) && - (r < -MAX_SAFE_INTEGER || r > MAX_SAFE_INTEGER)) - goto binary_arith_slow; -#endif - d = (double)r; - goto mul_fp_res; - } - /* need to test zero case for -0 result */ - if (unlikely(r == 0 && (v1 | v2) < 0)) { - d = -0.0; - goto mul_fp_res; - } - sp[-2] = JS_NewInt32(ctx, r); - sp--; - } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) { -#ifdef CONFIG_BIGNUM - if (unlikely(sf->js_mode & JS_MODE_MATH)) - goto binary_arith_slow; -#endif - d = JS_VALUE_GET_FLOAT64(op1) * JS_VALUE_GET_FLOAT64(op2); - mul_fp_res: - sp[-2] = __JS_NewFloat64(ctx, d); - sp--; - } else { - goto binary_arith_slow; - } - } - BREAK; - CASE(OP_div): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - int v1, v2; - if (unlikely(sf->js_mode & JS_MODE_MATH)) - goto binary_arith_slow; - v1 = JS_VALUE_GET_INT(op1); - v2 = JS_VALUE_GET_INT(op2); - sp[-2] = JS_NewFloat64(ctx, (double)v1 / (double)v2); - sp--; - } else { - goto binary_arith_slow; - } - } - BREAK; - CASE(OP_mod): -#ifdef CONFIG_BIGNUM - CASE(OP_math_mod): -#endif - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - int v1, v2, r; - v1 = JS_VALUE_GET_INT(op1); - v2 = JS_VALUE_GET_INT(op2); - /* We must avoid v2 = 0, v1 = INT32_MIN and v2 = - -1 and the cases where the result is -0. */ - if (unlikely(v1 < 0 || v2 <= 0)) - goto binary_arith_slow; - r = v1 % v2; - sp[-2] = JS_NewInt32(ctx, r); - sp--; - } else { - goto binary_arith_slow; - } - } - BREAK; - CASE(OP_pow): - binary_arith_slow: - if (js_binary_arith_slow(ctx, sp, opcode)) - goto exception; - sp--; - BREAK; - - CASE(OP_plus): - { - JSValue op1; - uint32_t tag; - op1 = sp[-1]; - tag = JS_VALUE_GET_TAG(op1); - if (tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag)) { - } else { - if (js_unary_arith_slow(ctx, sp, opcode)) - goto exception; - } - } - BREAK; - CASE(OP_neg): - { - JSValue op1; - uint32_t tag; - int val; - double d; - op1 = sp[-1]; - tag = JS_VALUE_GET_TAG(op1); - if (tag == JS_TAG_INT) { - val = JS_VALUE_GET_INT(op1); - /* Note: -0 cannot be expressed as integer */ - if (unlikely(val == 0)) { - d = -0.0; - goto neg_fp_res; - } - if (unlikely(val == INT32_MIN)) { - d = -(double)val; - goto neg_fp_res; - } - sp[-1] = JS_NewInt32(ctx, -val); - } else if (JS_TAG_IS_FLOAT64(tag)) { - d = -JS_VALUE_GET_FLOAT64(op1); - neg_fp_res: - sp[-1] = __JS_NewFloat64(ctx, d); - } else { - if (js_unary_arith_slow(ctx, sp, opcode)) - goto exception; - } - } - BREAK; - CASE(OP_inc): - { - JSValue op1; - int val; - op1 = sp[-1]; - if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { - val = JS_VALUE_GET_INT(op1); - if (unlikely(val == INT32_MAX)) - goto inc_slow; - sp[-1] = JS_NewInt32(ctx, val + 1); - } else { - inc_slow: - if (js_unary_arith_slow(ctx, sp, opcode)) - goto exception; - } - } - BREAK; - CASE(OP_dec): - { - JSValue op1; - int val; - op1 = sp[-1]; - if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { - val = JS_VALUE_GET_INT(op1); - if (unlikely(val == INT32_MIN)) - goto dec_slow; - sp[-1] = JS_NewInt32(ctx, val - 1); - } else { - dec_slow: - if (js_unary_arith_slow(ctx, sp, opcode)) - goto exception; - } - } - BREAK; - CASE(OP_post_inc): - CASE(OP_post_dec): - if (js_post_inc_slow(ctx, sp, opcode)) - goto exception; - sp++; - BREAK; - CASE(OP_inc_loc): - { - JSValue op1; - int val; - int idx; - idx = *pc; - pc += 1; - - op1 = var_buf[idx]; - if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { - val = JS_VALUE_GET_INT(op1); - if (unlikely(val == INT32_MAX)) - goto inc_loc_slow; - var_buf[idx] = JS_NewInt32(ctx, val + 1); - } else { - inc_loc_slow: - /* must duplicate otherwise the variable value may - be destroyed before JS code accesses it */ - op1 = JS_DupValue(ctx, op1); - if (js_unary_arith_slow(ctx, &op1 + 1, OP_inc)) - goto exception; - set_value(ctx, &var_buf[idx], op1); - } - } - BREAK; - CASE(OP_dec_loc): - { - JSValue op1; - int val; - int idx; - idx = *pc; - pc += 1; - - op1 = var_buf[idx]; - if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { - val = JS_VALUE_GET_INT(op1); - if (unlikely(val == INT32_MIN)) - goto dec_loc_slow; - var_buf[idx] = JS_NewInt32(ctx, val - 1); - } else { - dec_loc_slow: - /* must duplicate otherwise the variable value may - be destroyed before JS code accesses it */ - op1 = JS_DupValue(ctx, op1); - if (js_unary_arith_slow(ctx, &op1 + 1, OP_dec)) - goto exception; - set_value(ctx, &var_buf[idx], op1); - } - } - BREAK; - CASE(OP_not): - { - JSValue op1; - op1 = sp[-1]; - if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { - sp[-1] = JS_NewInt32(ctx, ~JS_VALUE_GET_INT(op1)); - } else { - if (js_not_slow(ctx, sp)) - goto exception; - } - } - BREAK; - - CASE(OP_shl): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - uint32_t v1, v2; - v1 = JS_VALUE_GET_INT(op1); - v2 = JS_VALUE_GET_INT(op2); -#ifdef CONFIG_BIGNUM - { - int64_t r; - if (unlikely(sf->js_mode & JS_MODE_MATH)) { - if (v2 > 0x1f) - goto shl_slow; - r = (int64_t)v1 << v2; - if ((int)r != r) - goto shl_slow; - } else { - v2 &= 0x1f; - } - } -#else - v2 &= 0x1f; -#endif - sp[-2] = JS_NewInt32(ctx, v1 << v2); - sp--; - } else { -#ifdef CONFIG_BIGNUM - shl_slow: -#endif - if (js_binary_logic_slow(ctx, sp, opcode)) - goto exception; - sp--; - } - } - BREAK; - CASE(OP_shr): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - uint32_t v2; - v2 = JS_VALUE_GET_INT(op2); - /* v1 >>> v2 retains its JS semantics if CONFIG_BIGNUM */ - v2 &= 0x1f; - sp[-2] = JS_NewUint32(ctx, - (uint32_t)JS_VALUE_GET_INT(op1) >> - v2); - sp--; - } else { - if (js_shr_slow(ctx, sp)) - goto exception; - sp--; - } - } - BREAK; - CASE(OP_sar): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - uint32_t v2; - v2 = JS_VALUE_GET_INT(op2); -#ifdef CONFIG_BIGNUM - if (unlikely(v2 > 0x1f)) { - if (unlikely(sf->js_mode & JS_MODE_MATH)) - goto sar_slow; - else - v2 &= 0x1f; - } -#else - v2 &= 0x1f; -#endif - sp[-2] = JS_NewInt32(ctx, - (int)JS_VALUE_GET_INT(op1) >> v2); - sp--; - } else { -#ifdef CONFIG_BIGNUM - sar_slow: -#endif - if (js_binary_logic_slow(ctx, sp, opcode)) - goto exception; - sp--; - } - } - BREAK; - CASE(OP_and): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - sp[-2] = JS_NewInt32(ctx, - JS_VALUE_GET_INT(op1) & - JS_VALUE_GET_INT(op2)); - sp--; - } else { - if (js_binary_logic_slow(ctx, sp, opcode)) - goto exception; - sp--; - } - } - BREAK; - CASE(OP_or): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - sp[-2] = JS_NewInt32(ctx, - JS_VALUE_GET_INT(op1) | - JS_VALUE_GET_INT(op2)); - sp--; - } else { - if (js_binary_logic_slow(ctx, sp, opcode)) - goto exception; - sp--; - } - } - BREAK; - CASE(OP_xor): - { - JSValue op1, op2; - op1 = sp[-2]; - op2 = sp[-1]; - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { - sp[-2] = JS_NewInt32(ctx, - JS_VALUE_GET_INT(op1) ^ - JS_VALUE_GET_INT(op2)); - sp--; - } else { - if (js_binary_logic_slow(ctx, sp, opcode)) - goto exception; - sp--; - } - } - BREAK; - - -#define OP_CMP(opcode, binary_op, slow_call) \ - CASE(opcode): \ - { \ - JSValue op1, op2; \ - op1 = sp[-2]; \ - op2 = sp[-1]; \ - if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { \ - sp[-2] = JS_NewBool(ctx, JS_VALUE_GET_INT(op1) binary_op JS_VALUE_GET_INT(op2)); \ - sp--; \ - } else { \ - if (slow_call) \ - goto exception; \ - sp--; \ - } \ - } \ - BREAK - - OP_CMP(OP_lt, <, js_relational_slow(ctx, sp, opcode)); - OP_CMP(OP_lte, <=, js_relational_slow(ctx, sp, opcode)); - OP_CMP(OP_gt, >, js_relational_slow(ctx, sp, opcode)); - OP_CMP(OP_gte, >=, js_relational_slow(ctx, sp, opcode)); - OP_CMP(OP_eq, ==, js_eq_slow(ctx, sp, 0)); - OP_CMP(OP_neq, !=, js_eq_slow(ctx, sp, 1)); - OP_CMP(OP_strict_eq, ==, js_strict_eq_slow(ctx, sp, 0)); - OP_CMP(OP_strict_neq, !=, js_strict_eq_slow(ctx, sp, 1)); - -#ifdef CONFIG_BIGNUM - CASE(OP_mul_pow10): - if (rt->bigfloat_ops.mul_pow10(ctx, sp)) - goto exception; - sp--; - BREAK; -#endif - CASE(OP_in): - if (js_operator_in(ctx, sp)) - goto exception; - sp--; - BREAK; - CASE(OP_private_in): - if (js_operator_private_in(ctx, sp)) - goto exception; - sp--; - BREAK; - CASE(OP_instanceof): - if (js_operator_instanceof(ctx, sp)) - goto exception; - sp--; - BREAK; - CASE(OP_typeof): - { - JSValue op1; - JSAtom atom; - - op1 = sp[-1]; - atom = js_operator_typeof(ctx, op1); - JS_FreeValue(ctx, op1); - sp[-1] = JS_AtomToString(ctx, atom); - } - BREAK; - CASE(OP_delete): - if (js_operator_delete(ctx, sp)) - goto exception; - sp--; - BREAK; - CASE(OP_delete_var): - { - JSAtom atom; - int ret; - - atom = get_u32(pc); - pc += 4; - - ret = JS_DeleteProperty(ctx, ctx->global_obj, atom, 0); - if (unlikely(ret < 0)) - goto exception; - *sp++ = JS_NewBool(ctx, ret); - } - BREAK; - - CASE(OP_to_object): - if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_OBJECT) { - ret_val = JS_ToObject(ctx, sp[-1]); - if (JS_IsException(ret_val)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = ret_val; - } - BREAK; - - CASE(OP_to_propkey): - switch (JS_VALUE_GET_TAG(sp[-1])) { - case JS_TAG_INT: - case JS_TAG_STRING: - case JS_TAG_SYMBOL: - break; - default: - ret_val = JS_ToPropertyKey(ctx, sp[-1]); - if (JS_IsException(ret_val)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = ret_val; - break; - } - BREAK; - - CASE(OP_to_propkey2): - /* must be tested first */ - if (unlikely(JS_IsUndefined(sp[-2]) || JS_IsNull(sp[-2]))) { - JS_ThrowTypeError(ctx, "value has no property"); - goto exception; - } - switch (JS_VALUE_GET_TAG(sp[-1])) { - case JS_TAG_INT: - case JS_TAG_STRING: - case JS_TAG_SYMBOL: - break; - default: - ret_val = JS_ToPropertyKey(ctx, sp[-1]); - if (JS_IsException(ret_val)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = ret_val; - break; - } - BREAK; -#if 0 - CASE(OP_to_string): - if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_STRING) { - ret_val = JS_ToString(ctx, sp[-1]); - if (JS_IsException(ret_val)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = ret_val; - } - BREAK; -#endif - CASE(OP_with_get_var): - CASE(OP_with_put_var): - CASE(OP_with_delete_var): - CASE(OP_with_make_ref): - CASE(OP_with_get_ref): - CASE(OP_with_get_ref_undef): - { - JSAtom atom; - int32_t diff; - JSValue obj, val; - int ret, is_with; - atom = get_u32(pc); - diff = get_u32(pc + 4); - is_with = pc[8]; - pc += 9; - - obj = sp[-1]; - ret = JS_HasProperty(ctx, obj, atom); - if (unlikely(ret < 0)) - goto exception; - if (ret) { - if (is_with) { - ret = js_has_unscopable(ctx, obj, atom); - if (unlikely(ret < 0)) - goto exception; - if (ret) - goto no_with; - } - switch (opcode) { - case OP_with_get_var: - val = JS_GetProperty(ctx, obj, atom); - if (unlikely(JS_IsException(val))) - goto exception; - set_value(ctx, &sp[-1], val); - break; - case OP_with_put_var: - /* XXX: check if strict mode */ - ret = JS_SetPropertyInternal(ctx, obj, atom, sp[-2], obj, - JS_PROP_THROW_STRICT); - JS_FreeValue(ctx, sp[-1]); - sp -= 2; - if (unlikely(ret < 0)) - goto exception; - break; - case OP_with_delete_var: - ret = JS_DeleteProperty(ctx, obj, atom, 0); - if (unlikely(ret < 0)) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = JS_NewBool(ctx, ret); - break; - case OP_with_make_ref: - /* produce a pair object/propname on the stack */ - *sp++ = JS_AtomToValue(ctx, atom); - break; - case OP_with_get_ref: - /* produce a pair object/method on the stack */ - val = JS_GetProperty(ctx, obj, atom); - if (unlikely(JS_IsException(val))) - goto exception; - *sp++ = val; - break; - case OP_with_get_ref_undef: - /* produce a pair undefined/function on the stack */ - val = JS_GetProperty(ctx, obj, atom); - if (unlikely(JS_IsException(val))) - goto exception; - JS_FreeValue(ctx, sp[-1]); - sp[-1] = JS_UNDEFINED; - *sp++ = val; - break; - } - pc += diff - 5; - } else { - no_with: - /* if not jumping, drop the object argument */ - JS_FreeValue(ctx, sp[-1]); - sp--; - } - } - BREAK; - - CASE(OP_await): - ret_val = JS_NewInt32(ctx, FUNC_RET_AWAIT); - goto done_generator; - CASE(OP_yield): - ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD); - goto done_generator; - CASE(OP_yield_star): - CASE(OP_async_yield_star): - ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD_STAR); - goto done_generator; - CASE(OP_return_async): - ret_val = JS_UNDEFINED; - goto done_generator; - CASE(OP_initial_yield): - ret_val = JS_NewInt32(ctx, FUNC_RET_INITIAL_YIELD); - goto done_generator; - - CASE(OP_nop): - BREAK; - CASE(OP_is_undefined_or_null): - if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED || - JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) { - goto set_true; - } else { - goto free_and_set_false; - } -#if SHORT_OPCODES - CASE(OP_is_undefined): - if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED) { - goto set_true; - } else { - goto free_and_set_false; - } - CASE(OP_is_null): - if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) { - goto set_true; - } else { - goto free_and_set_false; - } - /* XXX: could merge to a single opcode */ - CASE(OP_typeof_is_undefined): - /* different from OP_is_undefined because of isHTMLDDA */ - if (js_operator_typeof(ctx, sp[-1]) == JS_ATOM_undefined) { - goto free_and_set_true; - } else { - goto free_and_set_false; - } - CASE(OP_typeof_is_function): - if (js_operator_typeof(ctx, sp[-1]) == JS_ATOM_function) { - goto free_and_set_true; - } else { - goto free_and_set_false; - } - free_and_set_true: - JS_FreeValue(ctx, sp[-1]); -#endif - set_true: - sp[-1] = JS_TRUE; - BREAK; - free_and_set_false: - JS_FreeValue(ctx, sp[-1]); - sp[-1] = JS_FALSE; - BREAK; - CASE(OP_invalid): - DEFAULT: - JS_ThrowInternalError(ctx, "invalid opcode: pc=%u opcode=0x%02x", - (int)(pc - b->byte_code_buf - 1), opcode); - goto exception; - } - } - exception: - if (is_backtrace_needed(ctx, rt->current_exception)) { - /* add the backtrace information now (it is not done - before if the exception happens in a bytecode - operation */ - sf->cur_pc = pc; - build_backtrace(ctx, rt->current_exception, NULL, 0, 0); - } - if (!JS_IsUncatchableError(ctx, rt->current_exception)) { - while (sp > stack_buf) { - JSValue val = *--sp; - JS_FreeValue(ctx, val); - if (JS_VALUE_GET_TAG(val) == JS_TAG_CATCH_OFFSET) { - int pos = JS_VALUE_GET_INT(val); - if (pos == 0) { - /* enumerator: close it with a throw */ - JS_FreeValue(ctx, sp[-1]); /* drop the next method */ - sp--; - JS_IteratorClose(ctx, sp[-1], TRUE); - } else { - *sp++ = rt->current_exception; - rt->current_exception = JS_NULL; - pc = b->byte_code_buf + pos; - goto restart; - } - } - } - } - ret_val = JS_EXCEPTION; - /* the local variables are freed by the caller in the generator - case. Hence the label 'done' should never be reached in a - generator function. */ - if (b->func_kind != JS_FUNC_NORMAL) { - done_generator: - sf->cur_pc = pc; - sf->cur_sp = sp; - } else { - done: - if (unlikely(!list_empty(&sf->var_ref_list))) { - /* variable references reference the stack: must close them */ - close_var_refs(rt, sf); - } - /* free the local variables and stack */ - for(pval = local_buf; pval < sp; pval++) { - JS_FreeValue(ctx, *pval); - } - } - rt->current_stack_frame = sf->prev_frame; - return ret_val; -} - -JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, - int argc, JSValueConst *argv) -{ - return JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED, - argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV); -} - -static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj, - int argc, JSValueConst *argv) -{ - JSValue res = JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED, - argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV); - JS_FreeValue(ctx, func_obj); - return res; -} - -/* warning: the refcount of the context is not incremented. Return - NULL in case of exception (case of revoked proxy only) */ -static JSContext *JS_GetFunctionRealm(JSContext *ctx, JSValueConst func_obj) -{ - JSObject *p; - JSContext *realm; - - if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT) - return ctx; - p = JS_VALUE_GET_OBJ(func_obj); - switch(p->class_id) { - case JS_CLASS_C_FUNCTION: - realm = p->u.cfunc.realm; - break; - case JS_CLASS_BYTECODE_FUNCTION: - case JS_CLASS_GENERATOR_FUNCTION: - case JS_CLASS_ASYNC_FUNCTION: - case JS_CLASS_ASYNC_GENERATOR_FUNCTION: - { - JSFunctionBytecode *b; - b = p->u.func.function_bytecode; - realm = b->realm; - } - break; - case JS_CLASS_PROXY: - { - JSProxyData *s = p->u.opaque; - if (!s) - return ctx; - if (s->is_revoked) { - JS_ThrowTypeErrorRevokedProxy(ctx); - return NULL; - } else { - realm = JS_GetFunctionRealm(ctx, s->target); - } - } - break; - case JS_CLASS_BOUND_FUNCTION: - { - JSBoundFunction *bf = p->u.bound_function; - realm = JS_GetFunctionRealm(ctx, bf->func_obj); - } - break; - default: - realm = ctx; - break; - } - return realm; -} - -static JSValue js_create_from_ctor(JSContext *ctx, JSValueConst ctor, - int class_id) -{ - JSValue proto, obj; - JSContext *realm; - - if (JS_IsUndefined(ctor)) { - proto = JS_DupValue(ctx, ctx->class_proto[class_id]); - } else { - proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype); - if (JS_IsException(proto)) - return proto; - if (!JS_IsObject(proto)) { - JS_FreeValue(ctx, proto); - realm = JS_GetFunctionRealm(ctx, ctor); - if (!realm) - return JS_EXCEPTION; - proto = JS_DupValue(ctx, realm->class_proto[class_id]); - } - } - obj = JS_NewObjectProtoClass(ctx, proto, class_id); - JS_FreeValue(ctx, proto); - return obj; -} - -/* argv[] is modified if (flags & JS_CALL_FLAG_COPY_ARGV) = 0. */ -static JSValue JS_CallConstructorInternal(JSContext *ctx, - JSValueConst func_obj, - JSValueConst new_target, - int argc, JSValue *argv, int flags) -{ - JSObject *p; - JSFunctionBytecode *b; - - if (js_poll_interrupts(ctx)) - return JS_EXCEPTION; - flags |= JS_CALL_FLAG_CONSTRUCTOR; - if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)) - goto not_a_function; - p = JS_VALUE_GET_OBJ(func_obj); - if (unlikely(!p->is_constructor)) - return JS_ThrowTypeError(ctx, "not a constructor"); - if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) { - JSClassCall *call_func; - call_func = ctx->rt->class_array[p->class_id].call; - if (!call_func) { - not_a_function: - return JS_ThrowTypeError(ctx, "not a function"); - } - return call_func(ctx, func_obj, new_target, argc, - (JSValueConst *)argv, flags); - } - - b = p->u.func.function_bytecode; - if (b->is_derived_class_constructor) { - return JS_CallInternal(ctx, func_obj, JS_UNDEFINED, new_target, argc, argv, flags); - } else { - JSValue obj, ret; - /* legacy constructor behavior */ - obj = js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT); - if (JS_IsException(obj)) - return JS_EXCEPTION; - ret = JS_CallInternal(ctx, func_obj, obj, new_target, argc, argv, flags); - if (JS_VALUE_GET_TAG(ret) == JS_TAG_OBJECT || - JS_IsException(ret)) { - JS_FreeValue(ctx, obj); - return ret; - } else { - JS_FreeValue(ctx, ret); - return obj; - } - } -} - -JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj, - JSValueConst new_target, - int argc, JSValueConst *argv) -{ - return JS_CallConstructorInternal(ctx, func_obj, new_target, - argc, (JSValue *)argv, - JS_CALL_FLAG_COPY_ARGV); -} - -JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj, - int argc, JSValueConst *argv) -{ - return JS_CallConstructorInternal(ctx, func_obj, func_obj, - argc, (JSValue *)argv, - JS_CALL_FLAG_COPY_ARGV); -} - -JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom, - int argc, JSValueConst *argv) -{ - JSValue func_obj; - func_obj = JS_GetProperty(ctx, this_val, atom); - if (JS_IsException(func_obj)) - return func_obj; - return JS_CallFree(ctx, func_obj, this_val, argc, argv); -} - -static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom, - int argc, JSValueConst *argv) -{ - JSValue res = JS_Invoke(ctx, this_val, atom, argc, argv); - JS_FreeValue(ctx, this_val); - return res; -} - -/* JSAsyncFunctionState (used by generator and async functions) */ -static JSAsyncFunctionState *async_func_init(JSContext *ctx, - JSValueConst func_obj, JSValueConst this_obj, - int argc, JSValueConst *argv) -{ - JSAsyncFunctionState *s; - JSObject *p; - JSFunctionBytecode *b; - JSStackFrame *sf; - int local_count, i, arg_buf_len, n; - - s = js_mallocz(ctx, sizeof(*s)); - if (!s) - return NULL; - s->header.ref_count = 1; - add_gc_object(ctx->rt, &s->header, JS_GC_OBJ_TYPE_ASYNC_FUNCTION); - - sf = &s->frame; - init_list_head(&sf->var_ref_list); - p = JS_VALUE_GET_OBJ(func_obj); - b = p->u.func.function_bytecode; - sf->js_mode = b->js_mode | JS_MODE_ASYNC; - sf->cur_pc = b->byte_code_buf; - arg_buf_len = max_int(b->arg_count, argc); - local_count = arg_buf_len + b->var_count + b->stack_size; - sf->arg_buf = js_malloc(ctx, sizeof(JSValue) * max_int(local_count, 1)); - if (!sf->arg_buf) { - js_free(ctx, s); - return NULL; - } - sf->cur_func = JS_DupValue(ctx, func_obj); - s->this_val = JS_DupValue(ctx, this_obj); - s->argc = argc; - sf->arg_count = arg_buf_len; - sf->var_buf = sf->arg_buf + arg_buf_len; - sf->cur_sp = sf->var_buf + b->var_count; - for(i = 0; i < argc; i++) - sf->arg_buf[i] = JS_DupValue(ctx, argv[i]); - n = arg_buf_len + b->var_count; - for(i = argc; i < n; i++) - sf->arg_buf[i] = JS_UNDEFINED; - s->resolving_funcs[0] = JS_UNDEFINED; - s->resolving_funcs[1] = JS_UNDEFINED; - s->is_completed = FALSE; - return s; -} - -static void async_func_free_frame(JSRuntime *rt, JSAsyncFunctionState *s) -{ - JSStackFrame *sf = &s->frame; - JSValue *sp; - - if (sf->arg_buf) { - /* cannot free the function if it is running */ - assert(sf->cur_sp != NULL); - for(sp = sf->arg_buf; sp < sf->cur_sp; sp++) { - JS_FreeValueRT(rt, *sp); - } - js_free_rt(rt, sf->arg_buf); - sf->arg_buf = NULL; - } - JS_FreeValueRT(rt, sf->cur_func); - JS_FreeValueRT(rt, s->this_val); -} - -static JSValue async_func_resume(JSContext *ctx, JSAsyncFunctionState *s) -{ - JSRuntime *rt = ctx->rt; - JSStackFrame *sf = &s->frame; - JSValue func_obj, ret; - - assert(!s->is_completed); - if (js_check_stack_overflow(ctx->rt, 0)) { - ret = JS_ThrowStackOverflow(ctx); - } else { - /* the tag does not matter provided it is not an object */ - func_obj = JS_MKPTR(JS_TAG_INT, s); - ret = JS_CallInternal(ctx, func_obj, s->this_val, JS_UNDEFINED, - s->argc, sf->arg_buf, JS_CALL_FLAG_GENERATOR); - } - if (JS_IsException(ret) || JS_IsUndefined(ret)) { - if (JS_IsUndefined(ret)) { - ret = sf->cur_sp[-1]; - sf->cur_sp[-1] = JS_UNDEFINED; - } - /* end of execution */ - s->is_completed = TRUE; - - /* close the closure variables. */ - close_var_refs(rt, sf); - - async_func_free_frame(rt, s); - } - return ret; -} - -static void __async_func_free(JSRuntime *rt, JSAsyncFunctionState *s) -{ - /* cannot close the closure variables here because it would - potentially modify the object graph */ - if (!s->is_completed) { - async_func_free_frame(rt, s); - } - - JS_FreeValueRT(rt, s->resolving_funcs[0]); - JS_FreeValueRT(rt, s->resolving_funcs[1]); - - remove_gc_object(&s->header); - if (rt->gc_phase == JS_GC_PHASE_REMOVE_CYCLES && s->header.ref_count != 0) { - list_add_tail(&s->header.link, &rt->gc_zero_ref_count_list); - } else { - js_free_rt(rt, s); - } -} - -static void async_func_free(JSRuntime *rt, JSAsyncFunctionState *s) -{ - if (--s->header.ref_count == 0) { - if (rt->gc_phase != JS_GC_PHASE_REMOVE_CYCLES) { - list_del(&s->header.link); - list_add(&s->header.link, &rt->gc_zero_ref_count_list); - if (rt->gc_phase == JS_GC_PHASE_NONE) { - free_zero_refcount(rt); - } - } - } -} - -/* Generators */ - -typedef enum JSGeneratorStateEnum { - JS_GENERATOR_STATE_SUSPENDED_START, - JS_GENERATOR_STATE_SUSPENDED_YIELD, - JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR, - JS_GENERATOR_STATE_EXECUTING, - JS_GENERATOR_STATE_COMPLETED, -} JSGeneratorStateEnum; - -typedef struct JSGeneratorData { - JSGeneratorStateEnum state; - JSAsyncFunctionState *func_state; -} JSGeneratorData; - -static void free_generator_stack_rt(JSRuntime *rt, JSGeneratorData *s) -{ - if (s->state == JS_GENERATOR_STATE_COMPLETED) - return; - if (s->func_state) { - async_func_free(rt, s->func_state); - s->func_state = NULL; - } - s->state = JS_GENERATOR_STATE_COMPLETED; -} - -static void js_generator_finalizer(JSRuntime *rt, JSValue obj) -{ - JSGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_GENERATOR); - - if (s) { - free_generator_stack_rt(rt, s); - js_free_rt(rt, s); - } -} - -static void free_generator_stack(JSContext *ctx, JSGeneratorData *s) -{ - free_generator_stack_rt(ctx->rt, s); -} - -static void js_generator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSGeneratorData *s = p->u.generator_data; - - if (!s || !s->func_state) - return; - mark_func(rt, &s->func_state->header); -} - -/* XXX: use enum */ -#define GEN_MAGIC_NEXT 0 -#define GEN_MAGIC_RETURN 1 -#define GEN_MAGIC_THROW 2 - -static JSValue js_generator_next(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, - BOOL *pdone, int magic) -{ - JSGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_GENERATOR); - JSStackFrame *sf; - JSValue ret, func_ret; - - *pdone = TRUE; - if (!s) - return JS_ThrowTypeError(ctx, "not a generator"); - sf = &s->func_state->frame; - switch(s->state) { - default: - case JS_GENERATOR_STATE_SUSPENDED_START: - if (magic == GEN_MAGIC_NEXT) { - goto exec_no_arg; - } else { - free_generator_stack(ctx, s); - goto done; - } - break; - case JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR: - case JS_GENERATOR_STATE_SUSPENDED_YIELD: - /* cur_sp[-1] was set to JS_UNDEFINED in the previous call */ - ret = JS_DupValue(ctx, argv[0]); - if (magic == GEN_MAGIC_THROW && - s->state == JS_GENERATOR_STATE_SUSPENDED_YIELD) { - JS_Throw(ctx, ret); - s->func_state->throw_flag = TRUE; - } else { - sf->cur_sp[-1] = ret; - sf->cur_sp[0] = JS_NewInt32(ctx, magic); - sf->cur_sp++; - exec_no_arg: - s->func_state->throw_flag = FALSE; - } - s->state = JS_GENERATOR_STATE_EXECUTING; - func_ret = async_func_resume(ctx, s->func_state); - s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD; - if (s->func_state->is_completed) { - /* finalize the execution in case of exception or normal return */ - free_generator_stack(ctx, s); - return func_ret; - } else { - assert(JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT); - /* get the returned yield value at the top of the stack */ - ret = sf->cur_sp[-1]; - sf->cur_sp[-1] = JS_UNDEFINED; - if (JS_VALUE_GET_INT(func_ret) == FUNC_RET_YIELD_STAR) { - s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR; - /* return (value, done) object */ - *pdone = 2; - } else { - *pdone = FALSE; - } - } - break; - case JS_GENERATOR_STATE_COMPLETED: - done: - /* execution is finished */ - switch(magic) { - default: - case GEN_MAGIC_NEXT: - ret = JS_UNDEFINED; - break; - case GEN_MAGIC_RETURN: - ret = JS_DupValue(ctx, argv[0]); - break; - case GEN_MAGIC_THROW: - ret = JS_Throw(ctx, JS_DupValue(ctx, argv[0])); - break; - } - break; - case JS_GENERATOR_STATE_EXECUTING: - ret = JS_ThrowTypeError(ctx, "cannot invoke a running generator"); - break; - } - return ret; -} - -static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, - int flags) -{ - JSValue obj, func_ret; - JSGeneratorData *s; - - s = js_mallocz(ctx, sizeof(*s)); - if (!s) - return JS_EXCEPTION; - s->state = JS_GENERATOR_STATE_SUSPENDED_START; - s->func_state = async_func_init(ctx, func_obj, this_obj, argc, argv); - if (!s->func_state) { - s->state = JS_GENERATOR_STATE_COMPLETED; - goto fail; - } - - /* execute the function up to 'OP_initial_yield' */ - func_ret = async_func_resume(ctx, s->func_state); - if (JS_IsException(func_ret)) - goto fail; - JS_FreeValue(ctx, func_ret); - - obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_GENERATOR); - if (JS_IsException(obj)) - goto fail; - JS_SetOpaque(obj, s); - return obj; - fail: - free_generator_stack_rt(ctx->rt, s); - js_free(ctx, s); - return JS_EXCEPTION; -} - -/* AsyncFunction */ - -static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSAsyncFunctionState *s = p->u.async_function_data; - if (s) { - async_func_free(rt, s); - } -} - -static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSObject *p = JS_VALUE_GET_OBJ(val); - JSAsyncFunctionState *s = p->u.async_function_data; - if (s) { - mark_func(rt, &s->header); - } -} - -static int js_async_function_resolve_create(JSContext *ctx, - JSAsyncFunctionState *s, - JSValue *resolving_funcs) -{ - int i; - JSObject *p; - - for(i = 0; i < 2; i++) { - resolving_funcs[i] = - JS_NewObjectProtoClass(ctx, ctx->function_proto, - JS_CLASS_ASYNC_FUNCTION_RESOLVE + i); - if (JS_IsException(resolving_funcs[i])) { - if (i == 1) - JS_FreeValue(ctx, resolving_funcs[0]); - return -1; - } - p = JS_VALUE_GET_OBJ(resolving_funcs[i]); - s->header.ref_count++; - p->u.async_function_data = s; - } - return 0; -} - -static void js_async_function_resume(JSContext *ctx, JSAsyncFunctionState *s) -{ - JSValue func_ret, ret2; - - func_ret = async_func_resume(ctx, s); - if (s->is_completed) { - if (JS_IsException(func_ret)) { - JSValue error; - fail: - error = JS_GetException(ctx); - ret2 = JS_Call(ctx, s->resolving_funcs[1], JS_UNDEFINED, - 1, (JSValueConst *)&error); - JS_FreeValue(ctx, error); - JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */ - } else { - /* normal return */ - ret2 = JS_Call(ctx, s->resolving_funcs[0], JS_UNDEFINED, - 1, (JSValueConst *)&func_ret); - JS_FreeValue(ctx, func_ret); - JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */ - } - } else { - JSValue value, promise, resolving_funcs[2], resolving_funcs1[2]; - int i, res; - - value = s->frame.cur_sp[-1]; - s->frame.cur_sp[-1] = JS_UNDEFINED; - - /* await */ - JS_FreeValue(ctx, func_ret); /* not used */ - promise = js_promise_resolve(ctx, ctx->promise_ctor, - 1, (JSValueConst *)&value, 0); - JS_FreeValue(ctx, value); - if (JS_IsException(promise)) - goto fail; - if (js_async_function_resolve_create(ctx, s, resolving_funcs)) { - JS_FreeValue(ctx, promise); - goto fail; - } - - /* Note: no need to create 'thrownawayCapability' as in - the spec */ - for(i = 0; i < 2; i++) - resolving_funcs1[i] = JS_UNDEFINED; - res = perform_promise_then(ctx, promise, - (JSValueConst *)resolving_funcs, - (JSValueConst *)resolving_funcs1); - JS_FreeValue(ctx, promise); - for(i = 0; i < 2; i++) - JS_FreeValue(ctx, resolving_funcs[i]); - if (res) - goto fail; - } -} - -static JSValue js_async_function_resolve_call(JSContext *ctx, - JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, - int flags) -{ - JSObject *p = JS_VALUE_GET_OBJ(func_obj); - JSAsyncFunctionState *s = p->u.async_function_data; - BOOL is_reject = p->class_id - JS_CLASS_ASYNC_FUNCTION_RESOLVE; - JSValueConst arg; - - if (argc > 0) - arg = argv[0]; - else - arg = JS_UNDEFINED; - s->throw_flag = is_reject; - if (is_reject) { - JS_Throw(ctx, JS_DupValue(ctx, arg)); - } else { - /* return value of await */ - s->frame.cur_sp[-1] = JS_DupValue(ctx, arg); - } - js_async_function_resume(ctx, s); - return JS_UNDEFINED; -} - -static JSValue js_async_function_call(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, int flags) -{ - JSValue promise; - JSAsyncFunctionState *s; - - s = async_func_init(ctx, func_obj, this_obj, argc, argv); - if (!s) - return JS_EXCEPTION; - - promise = JS_NewPromiseCapability(ctx, s->resolving_funcs); - if (JS_IsException(promise)) { - async_func_free(ctx->rt, s); - return JS_EXCEPTION; - } - - js_async_function_resume(ctx, s); - - async_func_free(ctx->rt, s); - - return promise; -} - -/* AsyncGenerator */ - -typedef enum JSAsyncGeneratorStateEnum { - JS_ASYNC_GENERATOR_STATE_SUSPENDED_START, - JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD, - JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR, - JS_ASYNC_GENERATOR_STATE_EXECUTING, - JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN, - JS_ASYNC_GENERATOR_STATE_COMPLETED, -} JSAsyncGeneratorStateEnum; - -typedef struct JSAsyncGeneratorRequest { - struct list_head link; - /* completion */ - int completion_type; /* GEN_MAGIC_x */ - JSValue result; - /* promise capability */ - JSValue promise; - JSValue resolving_funcs[2]; -} JSAsyncGeneratorRequest; - -typedef struct JSAsyncGeneratorData { - JSObject *generator; /* back pointer to the object (const) */ - JSAsyncGeneratorStateEnum state; - /* func_state is NULL is state AWAITING_RETURN and COMPLETED */ - JSAsyncFunctionState *func_state; - struct list_head queue; /* list of JSAsyncGeneratorRequest.link */ -} JSAsyncGeneratorData; - -static void js_async_generator_free(JSRuntime *rt, - JSAsyncGeneratorData *s) -{ - struct list_head *el, *el1; - JSAsyncGeneratorRequest *req; - - list_for_each_safe(el, el1, &s->queue) { - req = list_entry(el, JSAsyncGeneratorRequest, link); - JS_FreeValueRT(rt, req->result); - JS_FreeValueRT(rt, req->promise); - JS_FreeValueRT(rt, req->resolving_funcs[0]); - JS_FreeValueRT(rt, req->resolving_funcs[1]); - js_free_rt(rt, req); - } - if (s->func_state) - async_func_free(rt, s->func_state); - js_free_rt(rt, s); -} - -static void js_async_generator_finalizer(JSRuntime *rt, JSValue obj) -{ - JSAsyncGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_ASYNC_GENERATOR); - - if (s) { - js_async_generator_free(rt, s); - } -} - -static void js_async_generator_mark(JSRuntime *rt, JSValueConst val, - JS_MarkFunc *mark_func) -{ - JSAsyncGeneratorData *s = JS_GetOpaque(val, JS_CLASS_ASYNC_GENERATOR); - struct list_head *el; - JSAsyncGeneratorRequest *req; - if (s) { - list_for_each(el, &s->queue) { - req = list_entry(el, JSAsyncGeneratorRequest, link); - JS_MarkValue(rt, req->result, mark_func); - JS_MarkValue(rt, req->promise, mark_func); - JS_MarkValue(rt, req->resolving_funcs[0], mark_func); - JS_MarkValue(rt, req->resolving_funcs[1], mark_func); - } - if (s->func_state) { - mark_func(rt, &s->func_state->header); - } - } -} - -static JSValue js_async_generator_resolve_function(JSContext *ctx, - JSValueConst this_obj, - int argc, JSValueConst *argv, - int magic, JSValue *func_data); - -static int js_async_generator_resolve_function_create(JSContext *ctx, - JSValueConst generator, - JSValue *resolving_funcs, - BOOL is_resume_next) -{ - int i; - JSValue func; - - for(i = 0; i < 2; i++) { - func = JS_NewCFunctionData(ctx, js_async_generator_resolve_function, 1, - i + is_resume_next * 2, 1, &generator); - if (JS_IsException(func)) { - if (i == 1) - JS_FreeValue(ctx, resolving_funcs[0]); - return -1; - } - resolving_funcs[i] = func; - } - return 0; -} - -static int js_async_generator_await(JSContext *ctx, - JSAsyncGeneratorData *s, - JSValueConst value) -{ - JSValue promise, resolving_funcs[2], resolving_funcs1[2]; - int i, res; - - promise = js_promise_resolve(ctx, ctx->promise_ctor, - 1, &value, 0); - if (JS_IsException(promise)) - goto fail; - - if (js_async_generator_resolve_function_create(ctx, JS_MKPTR(JS_TAG_OBJECT, s->generator), - resolving_funcs, FALSE)) { - JS_FreeValue(ctx, promise); - goto fail; - } - - /* Note: no need to create 'thrownawayCapability' as in - the spec */ - for(i = 0; i < 2; i++) - resolving_funcs1[i] = JS_UNDEFINED; - res = perform_promise_then(ctx, promise, - (JSValueConst *)resolving_funcs, - (JSValueConst *)resolving_funcs1); - JS_FreeValue(ctx, promise); - for(i = 0; i < 2; i++) - JS_FreeValue(ctx, resolving_funcs[i]); - if (res) - goto fail; - return 0; - fail: - return -1; -} - -static void js_async_generator_resolve_or_reject(JSContext *ctx, - JSAsyncGeneratorData *s, - JSValueConst result, - int is_reject) -{ - JSAsyncGeneratorRequest *next; - JSValue ret; - - next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link); - list_del(&next->link); - ret = JS_Call(ctx, next->resolving_funcs[is_reject], JS_UNDEFINED, 1, - &result); - JS_FreeValue(ctx, ret); - JS_FreeValue(ctx, next->result); - JS_FreeValue(ctx, next->promise); - JS_FreeValue(ctx, next->resolving_funcs[0]); - JS_FreeValue(ctx, next->resolving_funcs[1]); - js_free(ctx, next); -} - -static void js_async_generator_resolve(JSContext *ctx, - JSAsyncGeneratorData *s, - JSValueConst value, - BOOL done) -{ - JSValue result; - result = js_create_iterator_result(ctx, JS_DupValue(ctx, value), done); - /* XXX: better exception handling ? */ - js_async_generator_resolve_or_reject(ctx, s, result, 0); - JS_FreeValue(ctx, result); - } - -static void js_async_generator_reject(JSContext *ctx, - JSAsyncGeneratorData *s, - JSValueConst exception) -{ - js_async_generator_resolve_or_reject(ctx, s, exception, 1); -} - -static void js_async_generator_complete(JSContext *ctx, - JSAsyncGeneratorData *s) -{ - if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED) { - s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED; - async_func_free(ctx->rt, s->func_state); - s->func_state = NULL; - } -} - -static int js_async_generator_completed_return(JSContext *ctx, - JSAsyncGeneratorData *s, - JSValueConst value) -{ - JSValue promise, resolving_funcs[2], resolving_funcs1[2]; - int res; - - // Can fail looking up JS_ATOM_constructor when is_reject==0. - promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, &value, - /*is_reject*/0); - // A poisoned .constructor property is observable and the resulting - // exception should be delivered to the catch handler. - if (JS_IsException(promise)) { - JSValue err = JS_GetException(ctx); - promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, (JSValueConst *)&err, - /*is_reject*/1); - JS_FreeValue(ctx, err); - if (JS_IsException(promise)) - return -1; - } - if (js_async_generator_resolve_function_create(ctx, - JS_MKPTR(JS_TAG_OBJECT, s->generator), - resolving_funcs1, - TRUE)) { - JS_FreeValue(ctx, promise); - return -1; - } - resolving_funcs[0] = JS_UNDEFINED; - resolving_funcs[1] = JS_UNDEFINED; - res = perform_promise_then(ctx, promise, - (JSValueConst *)resolving_funcs1, - (JSValueConst *)resolving_funcs); - JS_FreeValue(ctx, resolving_funcs1[0]); - JS_FreeValue(ctx, resolving_funcs1[1]); - JS_FreeValue(ctx, promise); - return res; -} - -static void js_async_generator_resume_next(JSContext *ctx, - JSAsyncGeneratorData *s) -{ - JSAsyncGeneratorRequest *next; - JSValue func_ret, value; - - for(;;) { - if (list_empty(&s->queue)) - break; - next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link); - switch(s->state) { - case JS_ASYNC_GENERATOR_STATE_EXECUTING: - /* only happens when restarting execution after await() */ - goto resume_exec; - case JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN: - goto done; - case JS_ASYNC_GENERATOR_STATE_SUSPENDED_START: - if (next->completion_type == GEN_MAGIC_NEXT) { - goto exec_no_arg; - } else { - js_async_generator_complete(ctx, s); - } - break; - case JS_ASYNC_GENERATOR_STATE_COMPLETED: - if (next->completion_type == GEN_MAGIC_NEXT) { - js_async_generator_resolve(ctx, s, JS_UNDEFINED, TRUE); - } else if (next->completion_type == GEN_MAGIC_RETURN) { - s->state = JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN; - js_async_generator_completed_return(ctx, s, next->result); - } else { - js_async_generator_reject(ctx, s, next->result); - } - goto done; - case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD: - case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR: - value = JS_DupValue(ctx, next->result); - if (next->completion_type == GEN_MAGIC_THROW && - s->state == JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD) { - JS_Throw(ctx, value); - s->func_state->throw_flag = TRUE; - } else { - /* 'yield' returns a value. 'yield *' also returns a value - in case the 'throw' method is called */ - s->func_state->frame.cur_sp[-1] = value; - s->func_state->frame.cur_sp[0] = - JS_NewInt32(ctx, next->completion_type); - s->func_state->frame.cur_sp++; - exec_no_arg: - s->func_state->throw_flag = FALSE; - } - s->state = JS_ASYNC_GENERATOR_STATE_EXECUTING; - resume_exec: - func_ret = async_func_resume(ctx, s->func_state); - if (s->func_state->is_completed) { - if (JS_IsException(func_ret)) { - value = JS_GetException(ctx); - js_async_generator_complete(ctx, s); - js_async_generator_reject(ctx, s, value); - JS_FreeValue(ctx, value); - } else { - /* end of function */ - js_async_generator_complete(ctx, s); - js_async_generator_resolve(ctx, s, func_ret, TRUE); - JS_FreeValue(ctx, func_ret); - } - } else { - int func_ret_code, ret; - assert(JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT); - func_ret_code = JS_VALUE_GET_INT(func_ret); - value = s->func_state->frame.cur_sp[-1]; - s->func_state->frame.cur_sp[-1] = JS_UNDEFINED; - switch(func_ret_code) { - case FUNC_RET_YIELD: - case FUNC_RET_YIELD_STAR: - if (func_ret_code == FUNC_RET_YIELD_STAR) - s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR; - else - s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD; - js_async_generator_resolve(ctx, s, value, FALSE); - JS_FreeValue(ctx, value); - break; - case FUNC_RET_AWAIT: - ret = js_async_generator_await(ctx, s, value); - JS_FreeValue(ctx, value); - if (ret < 0) { - /* exception: throw it */ - s->func_state->throw_flag = TRUE; - goto resume_exec; - } - goto done; - default: - abort(); - } - } - break; - default: - abort(); - } - } - done: ; -} - -static JSValue js_async_generator_resolve_function(JSContext *ctx, - JSValueConst this_obj, - int argc, JSValueConst *argv, - int magic, JSValue *func_data) -{ - BOOL is_reject = magic & 1; - JSAsyncGeneratorData *s = JS_GetOpaque(func_data[0], JS_CLASS_ASYNC_GENERATOR); - JSValueConst arg = argv[0]; - - /* XXX: what if s == NULL */ - - if (magic >= 2) { - /* resume next case in AWAITING_RETURN state */ - assert(s->state == JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN || - s->state == JS_ASYNC_GENERATOR_STATE_COMPLETED); - s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED; - if (is_reject) { - js_async_generator_reject(ctx, s, arg); - } else { - js_async_generator_resolve(ctx, s, arg, TRUE); - } - } else { - /* restart function execution after await() */ - assert(s->state == JS_ASYNC_GENERATOR_STATE_EXECUTING); - s->func_state->throw_flag = is_reject; - if (is_reject) { - JS_Throw(ctx, JS_DupValue(ctx, arg)); - } else { - /* return value of await */ - s->func_state->frame.cur_sp[-1] = JS_DupValue(ctx, arg); - } - js_async_generator_resume_next(ctx, s); - } - return JS_UNDEFINED; -} - -/* magic = GEN_MAGIC_x */ -static JSValue js_async_generator_next(JSContext *ctx, JSValueConst this_val, - int argc, JSValueConst *argv, - int magic) -{ - JSAsyncGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_ASYNC_GENERATOR); - JSValue promise, resolving_funcs[2]; - JSAsyncGeneratorRequest *req; - - promise = JS_NewPromiseCapability(ctx, resolving_funcs); - if (JS_IsException(promise)) - return JS_EXCEPTION; - if (!s) { - JSValue err, res2; - JS_ThrowTypeError(ctx, "not an AsyncGenerator object"); - err = JS_GetException(ctx); - res2 = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED, - 1, (JSValueConst *)&err); - JS_FreeValue(ctx, err); - JS_FreeValue(ctx, res2); - JS_FreeValue(ctx, resolving_funcs[0]); - JS_FreeValue(ctx, resolving_funcs[1]); - return promise; - } - req = js_mallocz(ctx, sizeof(*req)); - if (!req) - goto fail; - req->completion_type = magic; - req->result = JS_DupValue(ctx, argv[0]); - req->promise = JS_DupValue(ctx, promise); - req->resolving_funcs[0] = resolving_funcs[0]; - req->resolving_funcs[1] = resolving_funcs[1]; - list_add_tail(&req->link, &s->queue); - if (s->state != JS_ASYNC_GENERATOR_STATE_EXECUTING) { - js_async_generator_resume_next(ctx, s); - } - return promise; - fail: - JS_FreeValue(ctx, resolving_funcs[0]); - JS_FreeValue(ctx, resolving_funcs[1]); - JS_FreeValue(ctx, promise); - return JS_EXCEPTION; -} - -static JSValue js_async_generator_function_call(JSContext *ctx, JSValueConst func_obj, - JSValueConst this_obj, - int argc, JSValueConst *argv, - int flags) -{ - JSValue obj, func_ret; - JSAsyncGeneratorData *s; - - s = js_mallocz(ctx, sizeof(*s)); - if (!s) - return JS_EXCEPTION; - s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_START; - init_list_head(&s->queue); - s->func_state = async_func_init(ctx, func_obj, this_obj, argc, argv); - if (!s->func_state) - goto fail; - /* execute the function up to 'OP_initial_yield' (no yield nor - await are possible) */ - func_ret = async_func_resume(ctx, s->func_state); - if (JS_IsException(func_ret)) - goto fail; - JS_FreeValue(ctx, func_ret); - - obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_ASYNC_GENERATOR); - if (JS_IsException(obj)) - goto fail; - s->generator = JS_VALUE_GET_OBJ(obj); - JS_SetOpaque(obj, s); - return obj; - fail: - js_async_generator_free(ctx->rt, s); - return JS_EXCEPTION; -} - -/* JS parser */ - -enum { - TOK_NUMBER = -128, - TOK_STRING, - TOK_TEMPLATE, - TOK_IDENT, - TOK_REGEXP, - /* warning: order matters (see js_parse_assign_expr) */ - TOK_MUL_ASSIGN, - TOK_DIV_ASSIGN, - TOK_MOD_ASSIGN, - TOK_PLUS_ASSIGN, - TOK_MINUS_ASSIGN, - TOK_SHL_ASSIGN, - TOK_SAR_ASSIGN, - TOK_SHR_ASSIGN, - TOK_AND_ASSIGN, - TOK_XOR_ASSIGN, - TOK_OR_ASSIGN, -#ifdef CONFIG_BIGNUM - TOK_MATH_POW_ASSIGN, -#endif - TOK_POW_ASSIGN, - TOK_LAND_ASSIGN, - TOK_LOR_ASSIGN, - TOK_DOUBLE_QUESTION_MARK_ASSIGN, - TOK_DEC, - TOK_INC, - TOK_SHL, - TOK_SAR, - TOK_SHR, - TOK_LT, - TOK_LTE, - TOK_GT, - TOK_GTE, - TOK_EQ, - TOK_STRICT_EQ, - TOK_NEQ, - TOK_STRICT_NEQ, - TOK_LAND, - TOK_LOR, -#ifdef CONFIG_BIGNUM - TOK_MATH_POW, -#endif - TOK_POW, - TOK_ARROW, - TOK_ELLIPSIS, - TOK_DOUBLE_QUESTION_MARK, - TOK_QUESTION_MARK_DOT, - TOK_ERROR, - TOK_PRIVATE_NAME, - TOK_EOF, - /* keywords: WARNING: same order as atoms */ - TOK_NULL, /* must be first */ - TOK_FALSE, - TOK_TRUE, - TOK_IF, - TOK_ELSE, - TOK_RETURN, - TOK_VAR, - TOK_THIS, - TOK_DELETE, - TOK_VOID, - TOK_TYPEOF, - TOK_NEW, - TOK_IN, - TOK_INSTANCEOF, - TOK_DO, - TOK_WHILE, - TOK_FOR, - TOK_BREAK, - TOK_CONTINUE, - TOK_SWITCH, - TOK_CASE, - TOK_DEFAULT, - TOK_THROW, - TOK_TRY, - TOK_CATCH, - TOK_FINALLY, - TOK_FUNCTION, - TOK_DEBUGGER, - TOK_WITH, - /* FutureReservedWord */ - TOK_CLASS, - TOK_CONST, - TOK_ENUM, - TOK_EXPORT, - TOK_EXTENDS, - TOK_IMPORT, - TOK_SUPER, - /* FutureReservedWords when parsing strict mode code */ - TOK_IMPLEMENTS, - TOK_INTERFACE, - TOK_LET, - TOK_PACKAGE, - TOK_PRIVATE, - TOK_PROTECTED, - TOK_PUBLIC, - TOK_STATIC, - TOK_YIELD, - TOK_AWAIT, /* must be last */ - TOK_OF, /* only used for js_parse_skip_parens_token() */ -}; - -#define TOK_FIRST_KEYWORD TOK_NULL -#define TOK_LAST_KEYWORD TOK_AWAIT - -/* unicode code points */ -#define CP_NBSP 0x00a0 -#define CP_BOM 0xfeff - -#define CP_LS 0x2028 -#define CP_PS 0x2029 - -typedef struct BlockEnv { - struct BlockEnv *prev; - JSAtom label_name; /* JS_ATOM_NULL if none */ - int label_break; /* -1 if none */ - int label_cont; /* -1 if none */ - int drop_count; /* number of stack elements to drop */ - int label_finally; /* -1 if none */ - int scope_level; - int has_iterator; -} BlockEnv; - -typedef struct JSGlobalVar { - int cpool_idx; /* if >= 0, index in the constant pool for hoisted - function defintion*/ - uint8_t force_init : 1; /* force initialization to undefined */ - uint8_t is_lexical : 1; /* global let/const definition */ - uint8_t is_const : 1; /* const definition */ - int scope_level; /* scope of definition */ - JSAtom var_name; /* variable name */ -} JSGlobalVar; - -typedef struct RelocEntry { - struct RelocEntry *next; - uint32_t addr; /* address to patch */ - int size; /* address size: 1, 2 or 4 bytes */ -} RelocEntry; - -typedef struct JumpSlot { - int op; - int size; - int pos; - int label; -} JumpSlot; - -typedef struct LabelSlot { - int ref_count; - int pos; /* phase 1 address, -1 means not resolved yet */ - int pos2; /* phase 2 address, -1 means not resolved yet */ - int addr; /* phase 3 address, -1 means not resolved yet */ - RelocEntry *first_reloc; -} LabelSlot; - -typedef struct LineNumberSlot { - uint32_t pc; - int line_num; -} LineNumberSlot; - -typedef enum JSParseFunctionEnum { - JS_PARSE_FUNC_STATEMENT, - JS_PARSE_FUNC_VAR, - JS_PARSE_FUNC_EXPR, - JS_PARSE_FUNC_ARROW, - JS_PARSE_FUNC_GETTER, - JS_PARSE_FUNC_SETTER, - JS_PARSE_FUNC_METHOD, - JS_PARSE_FUNC_CLASS_STATIC_INIT, - JS_PARSE_FUNC_CLASS_CONSTRUCTOR, - JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR, -} JSParseFunctionEnum; - -typedef enum JSParseExportEnum { - JS_PARSE_EXPORT_NONE, - JS_PARSE_EXPORT_NAMED, - JS_PARSE_EXPORT_DEFAULT, -} JSParseExportEnum; - -typedef struct JSFunctionDef { - JSContext *ctx; - struct JSFunctionDef *parent; - int parent_cpool_idx; /* index in the constant pool of the parent - or -1 if none */ - int parent_scope_level; /* scope level in parent at point of definition */ - struct list_head child_list; /* list of JSFunctionDef.link */ - struct list_head link; - - BOOL is_eval; /* TRUE if eval code */ - int eval_type; /* only valid if is_eval = TRUE */ - BOOL is_global_var; /* TRUE if variables are not defined locally: - eval global, eval module or non strict eval */ - BOOL is_func_expr; /* TRUE if function expression */ - BOOL has_home_object; /* TRUE if the home object is available */ - BOOL has_prototype; /* true if a prototype field is necessary */ - BOOL has_simple_parameter_list; - BOOL has_parameter_expressions; /* if true, an argument scope is created */ - BOOL has_use_strict; /* to reject directive in special cases */ - BOOL has_eval_call; /* true if the function contains a call to eval() */ - BOOL has_arguments_binding; /* true if the 'arguments' binding is - available in the function */ - BOOL has_this_binding; /* true if the 'this' and new.target binding are - available in the function */ - BOOL new_target_allowed; /* true if the 'new.target' does not - throw a syntax error */ - BOOL super_call_allowed; /* true if super() is allowed */ - BOOL super_allowed; /* true if super. or super[] is allowed */ - BOOL arguments_allowed; /* true if the 'arguments' identifier is allowed */ - BOOL is_derived_class_constructor; - BOOL in_function_body; - BOOL backtrace_barrier; - JSFunctionKindEnum func_kind : 8; - JSParseFunctionEnum func_type : 8; - uint8_t js_mode; /* bitmap of JS_MODE_x */ - JSAtom func_name; /* JS_ATOM_NULL if no name */ - - JSVarDef *vars; - int var_size; /* allocated size for vars[] */ - int var_count; - JSVarDef *args; - int arg_size; /* allocated size for args[] */ - int arg_count; /* number of arguments */ - int defined_arg_count; - int var_object_idx; /* -1 if none */ - int arg_var_object_idx; /* -1 if none (var object for the argument scope) */ - int arguments_var_idx; /* -1 if none */ - int arguments_arg_idx; /* argument variable definition in argument scope, - -1 if none */ - int func_var_idx; /* variable containing the current function (-1 - if none, only used if is_func_expr is true) */ - int eval_ret_idx; /* variable containing the return value of the eval, -1 if none */ - int this_var_idx; /* variable containg the 'this' value, -1 if none */ - int new_target_var_idx; /* variable containg the 'new.target' value, -1 if none */ - int this_active_func_var_idx; /* variable containg the 'this.active_func' value, -1 if none */ - int home_object_var_idx; - BOOL need_home_object; - - int scope_level; /* index into fd->scopes if the current lexical scope */ - int scope_first; /* index into vd->vars of first lexically scoped variable */ - int scope_size; /* allocated size of fd->scopes array */ - int scope_count; /* number of entries used in the fd->scopes array */ - JSVarScope *scopes; - JSVarScope def_scope_array[4]; - int body_scope; /* scope of the body of the function or eval */ - - int global_var_count; - int global_var_size; - JSGlobalVar *global_vars; - - DynBuf byte_code; - int last_opcode_pos; /* -1 if no last opcode */ - int last_opcode_line_num; - BOOL use_short_opcodes; /* true if short opcodes are used in byte_code */ - - LabelSlot *label_slots; - int label_size; /* allocated size for label_slots[] */ - int label_count; - BlockEnv *top_break; /* break/continue label stack */ - - /* constant pool (strings, functions, numbers) */ - JSValue *cpool; - int cpool_count; - int cpool_size; - - /* list of variables in the closure */ - int closure_var_count; - int closure_var_size; - JSClosureVar *closure_var; - - JumpSlot *jump_slots; - int jump_size; - int jump_count; - - LineNumberSlot *line_number_slots; - int line_number_size; - int line_number_count; - int line_number_last; - int line_number_last_pc; - - /* pc2line table */ - JSAtom filename; - int line_num; - DynBuf pc2line; - - char *source; /* raw source, utf-8 encoded */ - int source_len; - - JSModuleDef *module; /* != NULL when parsing a module */ - BOOL has_await; /* TRUE if await is used (used in module eval) */ -} JSFunctionDef; - -typedef struct JSToken { - int val; - int line_num; /* line number of token start */ - const uint8_t *ptr; - union { - struct { - JSValue str; - int sep; - } str; - struct { - JSValue val; -#ifdef CONFIG_BIGNUM - slimb_t exponent; /* may be != 0 only if val is a float */ -#endif - } num; - struct { - JSAtom atom; - BOOL has_escape; - BOOL is_reserved; - } ident; - struct { - JSValue body; - JSValue flags; - } regexp; - } u; -} JSToken; - -typedef struct JSParseState { - JSContext *ctx; - int last_line_num; /* line number of last token */ - int line_num; /* line number of current offset */ - const char *filename; - JSToken token; - BOOL got_lf; /* true if got line feed before the current token */ - const uint8_t *last_ptr; - const uint8_t *buf_ptr; - const uint8_t *buf_end; - - /* current function code */ - JSFunctionDef *cur_func; - BOOL is_module; /* parsing a module */ - BOOL allow_html_comments; - BOOL ext_json; /* true if accepting JSON superset */ -} JSParseState; - -typedef struct JSOpCode { -#ifdef DUMP_BYTECODE - const char *name; -#endif - uint8_t size; /* in bytes */ - /* the opcodes remove n_pop items from the top of the stack, then - pushes n_push items */ - uint8_t n_pop; - uint8_t n_push; - uint8_t fmt; -} JSOpCode; - -static const JSOpCode opcode_info[OP_COUNT + (OP_TEMP_END - OP_TEMP_START)] = { -#define FMT(f) -#ifdef DUMP_BYTECODE -#define DEF(id, size, n_pop, n_push, f) { #id, size, n_pop, n_push, OP_FMT_ ## f }, -#else -#define DEF(id, size, n_pop, n_push, f) { size, n_pop, n_push, OP_FMT_ ## f }, -#endif -#include "quickjs-opcode.h" -#undef DEF -#undef FMT -}; - -#if SHORT_OPCODES -/* After the final compilation pass, short opcodes are used. Their - opcodes overlap with the temporary opcodes which cannot appear in - the final bytecode. Their description is after the temporary - opcodes in opcode_info[]. */ -#define short_opcode_info(op) \ - opcode_info[(op) >= OP_TEMP_START ? \ - (op) + (OP_TEMP_END - OP_TEMP_START) : (op)] -#else -#define short_opcode_info(op) opcode_info[op] -#endif - -static __exception int next_token(JSParseState *s); - -static void free_token(JSParseState *s, JSToken *token) -{ - switch(token->val) { - case TOK_NUMBER: - JS_FreeValue(s->ctx, token->u.num.val); - break; - case TOK_STRING: - case TOK_TEMPLATE: - JS_FreeValue(s->ctx, token->u.str.str); - break; - case TOK_REGEXP: - JS_FreeValue(s->ctx, token->u.regexp.body); - JS_FreeValue(s->ctx, token->u.regexp.flags); - break; - case TOK_IDENT: - case TOK_PRIVATE_NAME: - JS_FreeAtom(s->ctx, token->u.ident.atom); - break; - default: - if (token->val >= TOK_FIRST_KEYWORD && - token->val <= TOK_LAST_KEYWORD) { - JS_FreeAtom(s->ctx, token->u.ident.atom); - } - break; - } -} - -static void __attribute((unused)) dump_token(JSParseState *s, - const JSToken *token) -{ - switch(token->val) { - case TOK_NUMBER: - { - double d; - JS_ToFloat64(s->ctx, &d, token->u.num.val); /* no exception possible */ - printf("number: %.14g\n", d); - } - break; - case TOK_IDENT: - dump_atom: - { - char buf[ATOM_GET_STR_BUF_SIZE]; - printf("ident: '%s'\n", - JS_AtomGetStr(s->ctx, buf, sizeof(buf), token->u.ident.atom)); - } - break; - case TOK_STRING: - { - const char *str; - /* XXX: quote the string */ - str = JS_ToCString(s->ctx, token->u.str.str); - printf("string: '%s'\n", str); - JS_FreeCString(s->ctx, str); - } - break; - case TOK_TEMPLATE: - { - const char *str; - str = JS_ToCString(s->ctx, token->u.str.str); - printf("template: `%s`\n", str); - JS_FreeCString(s->ctx, str); - } - break; - case TOK_REGEXP: - { - const char *str, *str2; - str = JS_ToCString(s->ctx, token->u.regexp.body); - str2 = JS_ToCString(s->ctx, token->u.regexp.flags); - printf("regexp: '%s' '%s'\n", str, str2); - JS_FreeCString(s->ctx, str); - JS_FreeCString(s->ctx, str2); - } - break; - case TOK_EOF: - printf("eof\n"); - break; - default: - if (s->token.val >= TOK_NULL && s->token.val <= TOK_LAST_KEYWORD) { - goto dump_atom; - } else if (s->token.val >= 256) { - printf("token: %d\n", token->val); - } else { - printf("token: '%c'\n", token->val); - } - break; - } -} - -int __attribute__((format(printf, 2, 3))) js_parse_error(JSParseState *s, const char *fmt, ...) -{ - JSContext *ctx = s->ctx; - va_list ap; - int backtrace_flags; - - va_start(ap, fmt); - JS_ThrowError2(ctx, JS_SYNTAX_ERROR, fmt, ap, FALSE); - va_end(ap); - backtrace_flags = 0; - if (s->cur_func && s->cur_func->backtrace_barrier) - backtrace_flags = JS_BACKTRACE_FLAG_SINGLE_LEVEL; - build_backtrace(ctx, ctx->rt->current_exception, s->filename, s->line_num, - backtrace_flags); - return -1; -} - -static int js_parse_expect(JSParseState *s, int tok) -{ - if (s->token.val != tok) { - /* XXX: dump token correctly in all cases */ - return js_parse_error(s, "expecting '%c'", tok); - } - return next_token(s); -} - -static int js_parse_expect_semi(JSParseState *s) -{ - if (s->token.val != ';') { - /* automatic insertion of ';' */ - if (s->token.val == TOK_EOF || s->token.val == '}' || s->got_lf) { - return 0; - } - return js_parse_error(s, "expecting '%c'", ';'); - } - return next_token(s); -} - -static int js_parse_error_reserved_identifier(JSParseState *s) -{ - char buf1[ATOM_GET_STR_BUF_SIZE]; - return js_parse_error(s, "'%s' is a reserved identifier", - JS_AtomGetStr(s->ctx, buf1, sizeof(buf1), - s->token.u.ident.atom)); -} - -static __exception int js_parse_template_part(JSParseState *s, const uint8_t *p) -{ - uint32_t c; - StringBuffer b_s, *b = &b_s; - - /* p points to the first byte of the template part */ - if (string_buffer_init(s->ctx, b, 32)) - goto fail; - for(;;) { - if (p >= s->buf_end) - goto unexpected_eof; - c = *p++; - if (c == '`') { - /* template end part */ - break; - } - if (c == '$' && *p == '{') { - /* template start or middle part */ - p++; - break; - } - if (c == '\\') { - if (string_buffer_putc8(b, c)) - goto fail; - if (p >= s->buf_end) - goto unexpected_eof; - c = *p++; - } - /* newline sequences are normalized as single '\n' bytes */ - if (c == '\r') { - if (*p == '\n') - p++; - c = '\n'; - } - if (c == '\n') { - s->line_num++; - } else if (c >= 0x80) { - const uint8_t *p_next; - c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); - if (c > 0x10FFFF) { - js_parse_error(s, "invalid UTF-8 sequence"); - goto fail; - } - p = p_next; - } - if (string_buffer_putc(b, c)) - goto fail; - } - s->token.val = TOK_TEMPLATE; - s->token.u.str.sep = c; - s->token.u.str.str = string_buffer_end(b); - s->buf_ptr = p; - return 0; - - unexpected_eof: - js_parse_error(s, "unexpected end of string"); - fail: - string_buffer_free(b); - return -1; -} - -static __exception int js_parse_string(JSParseState *s, int sep, - BOOL do_throw, const uint8_t *p, - JSToken *token, const uint8_t **pp) -{ - int ret; - uint32_t c; - StringBuffer b_s, *b = &b_s; - - /* string */ - if (string_buffer_init(s->ctx, b, 32)) - goto fail; - for(;;) { - if (p >= s->buf_end) - goto invalid_char; - c = *p; - if (c < 0x20) { - if (!s->cur_func) { - if (do_throw) - js_parse_error(s, "invalid character in a JSON string"); - goto fail; - } - if (sep == '`') { - if (c == '\r') { - if (p[1] == '\n') - p++; - c = '\n'; - } - /* do not update s->line_num */ - } else if (c == '\n' || c == '\r') - goto invalid_char; - } - p++; - if (c == sep) - break; - if (c == '$' && *p == '{' && sep == '`') { - /* template start or middle part */ - p++; - break; - } - if (c == '\\') { - c = *p; - /* XXX: need a specific JSON case to avoid - accepting invalid escapes */ - switch(c) { - case '\0': - if (p >= s->buf_end) - goto invalid_char; - p++; - break; - case '\'': - case '\"': - case '\\': - p++; - break; - case '\r': /* accept DOS and MAC newline sequences */ - if (p[1] == '\n') { - p++; - } - /* fall thru */ - case '\n': - /* ignore escaped newline sequence */ - p++; - if (sep != '`') - s->line_num++; - continue; - default: - if (c >= '0' && c <= '9') { - if (!s->cur_func) - goto invalid_escape; /* JSON case */ - if (!(s->cur_func->js_mode & JS_MODE_STRICT) && sep != '`') - goto parse_escape; - if (c == '0' && !(p[1] >= '0' && p[1] <= '9')) { - p++; - c = '\0'; - } else { - if (c >= '8' || sep == '`') { - /* Note: according to ES2021, \8 and \9 are not - accepted in strict mode or in templates. */ - goto invalid_escape; - } else { - if (do_throw) - js_parse_error(s, "octal escape sequences are not allowed in strict mode"); - } - goto fail; - } - } else if (c >= 0x80) { - const uint8_t *p_next; - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next); - if (c > 0x10FFFF) { - goto invalid_utf8; - } - p = p_next; - /* LS or PS are skipped */ - if (c == CP_LS || c == CP_PS) - continue; - } else { - parse_escape: - ret = lre_parse_escape(&p, TRUE); - if (ret == -1) { - invalid_escape: - if (do_throw) - js_parse_error(s, "malformed escape sequence in string literal"); - goto fail; - } else if (ret < 0) { - /* ignore the '\' (could output a warning) */ - p++; - } else { - c = ret; - } - } - break; - } - } else if (c >= 0x80) { - const uint8_t *p_next; - c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); - if (c > 0x10FFFF) - goto invalid_utf8; - p = p_next; - } - if (string_buffer_putc(b, c)) - goto fail; - } - token->val = TOK_STRING; - token->u.str.sep = c; - token->u.str.str = string_buffer_end(b); - *pp = p; - return 0; - - invalid_utf8: - if (do_throw) - js_parse_error(s, "invalid UTF-8 sequence"); - goto fail; - invalid_char: - if (do_throw) - js_parse_error(s, "unexpected end of string"); - fail: - string_buffer_free(b); - return -1; -} - -static inline BOOL token_is_pseudo_keyword(JSParseState *s, JSAtom atom) { - return s->token.val == TOK_IDENT && s->token.u.ident.atom == atom && - !s->token.u.ident.has_escape; -} - -static __exception int js_parse_regexp(JSParseState *s) -{ - const uint8_t *p; - BOOL in_class; - StringBuffer b_s, *b = &b_s; - StringBuffer b2_s, *b2 = &b2_s; - uint32_t c; - - p = s->buf_ptr; - p++; - in_class = FALSE; - if (string_buffer_init(s->ctx, b, 32)) - return -1; - if (string_buffer_init(s->ctx, b2, 1)) - goto fail; - for(;;) { - if (p >= s->buf_end) { - eof_error: - js_parse_error(s, "unexpected end of regexp"); - goto fail; - } - c = *p++; - if (c == '\n' || c == '\r') { - goto eol_error; - } else if (c == '/') { - if (!in_class) - break; - } else if (c == '[') { - in_class = TRUE; - } else if (c == ']') { - /* XXX: incorrect as the first character in a class */ - in_class = FALSE; - } else if (c == '\\') { - if (string_buffer_putc8(b, c)) - goto fail; - c = *p++; - if (c == '\n' || c == '\r') - goto eol_error; - else if (c == '\0' && p >= s->buf_end) - goto eof_error; - else if (c >= 0x80) { - const uint8_t *p_next; - c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); - if (c > 0x10FFFF) { - goto invalid_utf8; - } - p = p_next; - if (c == CP_LS || c == CP_PS) - goto eol_error; - } - } else if (c >= 0x80) { - const uint8_t *p_next; - c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); - if (c > 0x10FFFF) { - invalid_utf8: - js_parse_error(s, "invalid UTF-8 sequence"); - goto fail; - } - p = p_next; - /* LS or PS are considered as line terminator */ - if (c == CP_LS || c == CP_PS) { - eol_error: - js_parse_error(s, "unexpected line terminator in regexp"); - goto fail; - } - } - if (string_buffer_putc(b, c)) - goto fail; - } - - /* flags */ - for(;;) { - const uint8_t *p_next = p; - c = *p_next++; - if (c >= 0x80) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next); - if (c > 0x10FFFF) { - goto invalid_utf8; - } - } - if (!lre_js_is_ident_next(c)) - break; - if (string_buffer_putc(b2, c)) - goto fail; - p = p_next; - } - - s->token.val = TOK_REGEXP; - s->token.u.regexp.body = string_buffer_end(b); - s->token.u.regexp.flags = string_buffer_end(b2); - s->buf_ptr = p; - return 0; - fail: - string_buffer_free(b); - string_buffer_free(b2); - return -1; -} - -static __exception int ident_realloc(JSContext *ctx, char **pbuf, size_t *psize, - char *static_buf) -{ - char *buf, *new_buf; - size_t size, new_size; - - buf = *pbuf; - size = *psize; - if (size >= (SIZE_MAX / 3) * 2) - new_size = SIZE_MAX; - else - new_size = size + (size >> 1); - if (buf == static_buf) { - new_buf = js_malloc(ctx, new_size); - if (!new_buf) - return -1; - memcpy(new_buf, buf, size); - } else { - new_buf = js_realloc(ctx, buf, new_size); - if (!new_buf) - return -1; - } - *pbuf = new_buf; - *psize = new_size; - return 0; -} - -/* convert a TOK_IDENT to a keyword when needed */ -static void update_token_ident(JSParseState *s) -{ - if (s->token.u.ident.atom <= JS_ATOM_LAST_KEYWORD || - (s->token.u.ident.atom <= JS_ATOM_LAST_STRICT_KEYWORD && - (s->cur_func->js_mode & JS_MODE_STRICT)) || - (s->token.u.ident.atom == JS_ATOM_yield && - ((s->cur_func->func_kind & JS_FUNC_GENERATOR) || - (s->cur_func->func_type == JS_PARSE_FUNC_ARROW && - !s->cur_func->in_function_body && s->cur_func->parent && - (s->cur_func->parent->func_kind & JS_FUNC_GENERATOR)))) || - (s->token.u.ident.atom == JS_ATOM_await && - (s->is_module || - (s->cur_func->func_kind & JS_FUNC_ASYNC) || - s->cur_func->func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT || - (s->cur_func->func_type == JS_PARSE_FUNC_ARROW && - !s->cur_func->in_function_body && s->cur_func->parent && - ((s->cur_func->parent->func_kind & JS_FUNC_ASYNC) || - s->cur_func->parent->func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT))))) { - if (s->token.u.ident.has_escape) { - s->token.u.ident.is_reserved = TRUE; - s->token.val = TOK_IDENT; - } else { - /* The keywords atoms are pre allocated */ - s->token.val = s->token.u.ident.atom - 1 + TOK_FIRST_KEYWORD; - } - } -} - -/* if the current token is an identifier or keyword, reparse it - according to the current function type */ -static void reparse_ident_token(JSParseState *s) -{ - if (s->token.val == TOK_IDENT || - (s->token.val >= TOK_FIRST_KEYWORD && - s->token.val <= TOK_LAST_KEYWORD)) { - s->token.val = TOK_IDENT; - s->token.u.ident.is_reserved = FALSE; - update_token_ident(s); - } -} - -/* 'c' is the first character. Return JS_ATOM_NULL in case of error */ -static JSAtom parse_ident(JSParseState *s, const uint8_t **pp, - BOOL *pident_has_escape, int c, BOOL is_private) -{ - const uint8_t *p, *p1; - char ident_buf[128], *buf; - size_t ident_size, ident_pos; - JSAtom atom; - - p = *pp; - buf = ident_buf; - ident_size = sizeof(ident_buf); - ident_pos = 0; - if (is_private) - buf[ident_pos++] = '#'; - for(;;) { - p1 = p; - - if (c < 128) { - buf[ident_pos++] = c; - } else { - ident_pos += unicode_to_utf8((uint8_t*)buf + ident_pos, c); - } - c = *p1++; - if (c == '\\' && *p1 == 'u') { - c = lre_parse_escape(&p1, TRUE); - *pident_has_escape = TRUE; - } else if (c >= 128) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1); - } - if (!lre_js_is_ident_next(c)) - break; - p = p1; - if (unlikely(ident_pos >= ident_size - UTF8_CHAR_LEN_MAX)) { - if (ident_realloc(s->ctx, &buf, &ident_size, ident_buf)) { - atom = JS_ATOM_NULL; - goto done; - } - } - } - atom = JS_NewAtomLen(s->ctx, buf, ident_pos); - done: - if (unlikely(buf != ident_buf)) - js_free(s->ctx, buf); - *pp = p; - return atom; -} - - -static __exception int next_token(JSParseState *s) -{ - const uint8_t *p; - int c; - BOOL ident_has_escape; - JSAtom atom; - - if (js_check_stack_overflow(s->ctx->rt, 0)) { - return js_parse_error(s, "stack overflow"); - } - - free_token(s, &s->token); - - p = s->last_ptr = s->buf_ptr; - s->got_lf = FALSE; - s->last_line_num = s->token.line_num; - redo: - s->token.line_num = s->line_num; - s->token.ptr = p; - c = *p; - switch(c) { - case 0: - if (p >= s->buf_end) { - s->token.val = TOK_EOF; - } else { - goto def_token; - } - break; - case '`': - if (js_parse_template_part(s, p + 1)) - goto fail; - p = s->buf_ptr; - break; - case '\'': - case '\"': - if (js_parse_string(s, c, TRUE, p + 1, &s->token, &p)) - goto fail; - break; - case '\r': /* accept DOS and MAC newline sequences */ - if (p[1] == '\n') { - p++; - } - /* fall thru */ - case '\n': - p++; - line_terminator: - s->got_lf = TRUE; - s->line_num++; - goto redo; - case '\f': - case '\v': - case ' ': - case '\t': - p++; - goto redo; - case '/': - if (p[1] == '*') { - /* comment */ - p += 2; - for(;;) { - if (*p == '\0' && p >= s->buf_end) { - js_parse_error(s, "unexpected end of comment"); - goto fail; - } - if (p[0] == '*' && p[1] == '/') { - p += 2; - break; - } - if (*p == '\n') { - s->line_num++; - s->got_lf = TRUE; /* considered as LF for ASI */ - p++; - } else if (*p == '\r') { - s->got_lf = TRUE; /* considered as LF for ASI */ - p++; - } else if (*p >= 0x80) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); - if (c == CP_LS || c == CP_PS) { - s->got_lf = TRUE; /* considered as LF for ASI */ - } else if (c == -1) { - p++; /* skip invalid UTF-8 */ - } - } else { - p++; - } - } - goto redo; - } else if (p[1] == '/') { - /* line comment */ - p += 2; - skip_line_comment: - for(;;) { - if (*p == '\0' && p >= s->buf_end) - break; - if (*p == '\r' || *p == '\n') - break; - if (*p >= 0x80) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); - /* LS or PS are considered as line terminator */ - if (c == CP_LS || c == CP_PS) { - break; - } else if (c == -1) { - p++; /* skip invalid UTF-8 */ - } - } else { - p++; - } - } - goto redo; - } else if (p[1] == '=') { - p += 2; - s->token.val = TOK_DIV_ASSIGN; - } else { - p++; - s->token.val = c; - } - break; - case '\\': - if (p[1] == 'u') { - const uint8_t *p1 = p + 1; - int c1 = lre_parse_escape(&p1, TRUE); - if (c1 >= 0 && lre_js_is_ident_first(c1)) { - c = c1; - p = p1; - ident_has_escape = TRUE; - goto has_ident; - } else { - /* XXX: syntax error? */ - } - } - goto def_token; - case 'a': case 'b': case 'c': case 'd': - case 'e': case 'f': case 'g': case 'h': - case 'i': case 'j': case 'k': case 'l': - case 'm': case 'n': case 'o': case 'p': - case 'q': case 'r': case 's': case 't': - case 'u': case 'v': case 'w': case 'x': - case 'y': case 'z': - case 'A': case 'B': case 'C': case 'D': - case 'E': case 'F': case 'G': case 'H': - case 'I': case 'J': case 'K': case 'L': - case 'M': case 'N': case 'O': case 'P': - case 'Q': case 'R': case 'S': case 'T': - case 'U': case 'V': case 'W': case 'X': - case 'Y': case 'Z': - case '_': - case '$': - /* identifier */ - p++; - ident_has_escape = FALSE; - has_ident: - atom = parse_ident(s, &p, &ident_has_escape, c, FALSE); - if (atom == JS_ATOM_NULL) - goto fail; - s->token.u.ident.atom = atom; - s->token.u.ident.has_escape = ident_has_escape; - s->token.u.ident.is_reserved = FALSE; - s->token.val = TOK_IDENT; - update_token_ident(s); - break; - case '#': - /* private name */ - { - const uint8_t *p1; - p++; - p1 = p; - c = *p1++; - if (c == '\\' && *p1 == 'u') { - c = lre_parse_escape(&p1, TRUE); - } else if (c >= 128) { - c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1); - } - if (!lre_js_is_ident_first(c)) { - js_parse_error(s, "invalid first character of private name"); - goto fail; - } - p = p1; - ident_has_escape = FALSE; /* not used */ - atom = parse_ident(s, &p, &ident_has_escape, c, TRUE); - if (atom == JS_ATOM_NULL) - goto fail; - s->token.u.ident.atom = atom; - s->token.val = TOK_PRIVATE_NAME; - } - break; - case '.': - if (p[1] == '.' && p[2] == '.') { - p += 3; - s->token.val = TOK_ELLIPSIS; - break; - } - if (p[1] >= '0' && p[1] <= '9') { - goto parse_number; - } else { - goto def_token; - } - break; - case '0': - /* in strict mode, octal literals are not accepted */ - if (is_digit(p[1]) && (s->cur_func->js_mode & JS_MODE_STRICT)) { - js_parse_error(s, "octal literals are deprecated in strict mode"); - goto fail; - } - goto parse_number; - case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': - case '9': - /* number */ - parse_number: - { - JSValue ret; - const uint8_t *p1; - int flags, radix; - flags = ATOD_ACCEPT_BIN_OCT | ATOD_ACCEPT_LEGACY_OCTAL | - ATOD_ACCEPT_UNDERSCORES; - flags |= ATOD_ACCEPT_SUFFIX; -#ifdef CONFIG_BIGNUM - if (s->cur_func->js_mode & JS_MODE_MATH) { - flags |= ATOD_MODE_BIGINT; - if (s->cur_func->js_mode & JS_MODE_MATH) - flags |= ATOD_TYPE_BIG_FLOAT; - } -#endif - radix = 0; -#ifdef CONFIG_BIGNUM - s->token.u.num.exponent = 0; - ret = js_atof2(s->ctx, (const char *)p, (const char **)&p, radix, - flags, &s->token.u.num.exponent); -#else - ret = js_atof(s->ctx, (const char *)p, (const char **)&p, radix, - flags); -#endif - if (JS_IsException(ret)) - goto fail; - /* reject `10instanceof Number` */ - if (JS_VALUE_IS_NAN(ret) || - lre_js_is_ident_next(unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1))) { - JS_FreeValue(s->ctx, ret); - js_parse_error(s, "invalid number literal"); - goto fail; - } - s->token.val = TOK_NUMBER; - s->token.u.num.val = ret; - } - break; - case '*': - if (p[1] == '=') { - p += 2; - s->token.val = TOK_MUL_ASSIGN; - } else if (p[1] == '*') { - if (p[2] == '=') { - p += 3; - s->token.val = TOK_POW_ASSIGN; - } else { - p += 2; - s->token.val = TOK_POW; - } - } else { - goto def_token; - } - break; - case '%': - if (p[1] == '=') { - p += 2; - s->token.val = TOK_MOD_ASSIGN; - } else { - goto def_token; - } - break; - case '+': - if (p[1] == '=') { - p += 2; - s->token.val = TOK_PLUS_ASSIGN; - } else if (p[1] == '+') { - p += 2; - s->token.val = TOK_INC; - } else { - goto def_token; - } - break; - case '-': - if (p[1] == '=') { - p += 2; - s->token.val = TOK_MINUS_ASSIGN; - } else if (p[1] == '-') { - if (s->allow_html_comments && - p[2] == '>' && s->last_line_num != s->line_num) { - /* Annex B: `-->` at beginning of line is an html comment end. - It extends to the end of the line. - */ - goto skip_line_comment; - } - p += 2; - s->token.val = TOK_DEC; - } else { - goto def_token; - } - break; - case '<': - if (p[1] == '=') { - p += 2; - s->token.val = TOK_LTE; - } else if (p[1] == '<') { - if (p[2] == '=') { - p += 3; - s->token.val = TOK_SHL_ASSIGN; - } else { - p += 2; - s->token.val = TOK_SHL; - } - } else if (s->allow_html_comments && - p[1] == '!' && p[2] == '-' && p[3] == '-') { - /* Annex B: handle `