forked from cory/tildefriends
Merge branches/quickjs to trunk. This is the way.
git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@3621 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
107
deps/quickjs/qjs.c
vendored
107
deps/quickjs/qjs.c
vendored
@@ -1,8 +1,8 @@
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/*
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* QuickJS stand alone interpreter
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*
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* Copyright (c) 2017-2018 Fabrice Bellard
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* Copyright (c) 2017-2018 Charlie Gordon
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* Copyright (c) 2017-2020 Fabrice Bellard
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* Copyright (c) 2017-2020 Charlie Gordon
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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@@ -46,6 +46,7 @@ extern const uint32_t qjsc_repl_size;
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#ifdef CONFIG_BIGNUM
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extern const uint8_t qjsc_qjscalc[];
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extern const uint32_t qjsc_qjscalc_size;
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static int bignum_ext;
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#endif
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static int eval_buf(JSContext *ctx, const void *buf, int buf_len,
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@@ -101,6 +102,27 @@ static int eval_file(JSContext *ctx, const char *filename, int module)
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return ret;
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}
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/* also used to initialize the worker context */
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static JSContext *JS_NewCustomContext(JSRuntime *rt)
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{
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JSContext *ctx;
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ctx = JS_NewContext(rt);
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if (!ctx)
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return NULL;
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#ifdef CONFIG_BIGNUM
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if (bignum_ext) {
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JS_AddIntrinsicBigFloat(ctx);
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JS_AddIntrinsicBigDecimal(ctx);
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JS_AddIntrinsicOperators(ctx);
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JS_EnableBignumExt(ctx, TRUE);
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}
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#endif
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/* system modules */
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js_init_module_std(ctx, "std");
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js_init_module_os(ctx, "os");
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return ctx;
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}
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#if defined(__APPLE__)
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#define MALLOC_OVERHEAD 0
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#else
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@@ -250,27 +272,28 @@ static const JSMallocFunctions trace_mf = {
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#endif
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};
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#ifdef CONFIG_BIGNUM
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#define PROG_NAME "qjsbn"
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#else
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#define PROG_NAME "qjs"
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#endif
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void help(void)
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{
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printf("QuickJS version " CONFIG_VERSION "\n"
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"usage: " PROG_NAME " [options] [file]\n"
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"usage: " PROG_NAME " [options] [file [args]]\n"
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"-h --help list options\n"
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"-e --eval EXPR evaluate EXPR\n"
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"-i --interactive go to interactive mode\n"
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"-m --module load as ES6 module (default=autodetect)\n"
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" --script load as ES6 script (default=autodetect)\n"
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"-I --include file include an additional file\n"
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" --std make 'std' and 'os' available to the loaded script\n"
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#ifdef CONFIG_BIGNUM
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" --bignum enable the bignum extensions (BigFloat, BigDecimal)\n"
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" --qjscalc load the QJSCalc runtime (default if invoked as qjscalc)\n"
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#endif
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"-T --trace trace memory allocation\n"
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"-d --dump dump the memory usage stats\n"
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" --memory-limit n limit the memory usage to 'n' bytes\n"
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" --stack-size n limit the stack size to 'n' bytes\n"
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" --unhandled-rejection dump unhandled promise rejections\n"
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"-q --quit just instantiate the interpreter and quit\n");
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exit(1);
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}
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@@ -288,10 +311,15 @@ int main(int argc, char **argv)
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int empty_run = 0;
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int module = -1;
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int load_std = 0;
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int dump_unhandled_promise_rejection = 0;
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size_t memory_limit = 0;
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char *include_list[32];
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int i, include_count = 0;
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#ifdef CONFIG_BIGNUM
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int load_jscalc;
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#endif
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size_t stack_size = 0;
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#ifdef CONFIG_BIGNUM
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/* load jscalc runtime if invoked as 'qjscalc' */
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{
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@@ -341,6 +369,18 @@ int main(int argc, char **argv)
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fprintf(stderr, "qjs: missing expression for -e\n");
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exit(2);
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}
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if (opt == 'I' || !strcmp(longopt, "include")) {
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if (optind >= argc) {
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fprintf(stderr, "expecting filename");
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exit(1);
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}
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if (include_count >= countof(include_list)) {
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fprintf(stderr, "too many included files");
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exit(1);
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}
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include_list[include_count++] = argv[optind++];
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continue;
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}
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if (opt == 'i' || !strcmp(longopt, "interactive")) {
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interactive++;
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continue;
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@@ -365,7 +405,15 @@ int main(int argc, char **argv)
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load_std = 1;
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continue;
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}
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if (!strcmp(longopt, "unhandled-rejection")) {
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dump_unhandled_promise_rejection = 1;
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continue;
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}
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#ifdef CONFIG_BIGNUM
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if (!strcmp(longopt, "bignum")) {
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bignum_ext = 1;
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continue;
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}
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if (!strcmp(longopt, "qjscalc")) {
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load_jscalc = 1;
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continue;
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@@ -375,6 +423,22 @@ int main(int argc, char **argv)
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empty_run++;
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continue;
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}
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if (!strcmp(longopt, "memory-limit")) {
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if (optind >= argc) {
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fprintf(stderr, "expecting memory limit");
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exit(1);
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}
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memory_limit = (size_t)strtod(argv[optind++], NULL);
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continue;
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}
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if (!strcmp(longopt, "stack-size")) {
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if (optind >= argc) {
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fprintf(stderr, "expecting stack size");
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exit(1);
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}
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stack_size = (size_t)strtod(argv[optind++], NULL);
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continue;
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}
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if (opt) {
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fprintf(stderr, "qjs: unknown option '-%c'\n", opt);
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} else {
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@@ -384,6 +448,9 @@ int main(int argc, char **argv)
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}
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}
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if (load_jscalc)
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bignum_ext = 1;
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if (trace_memory) {
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js_trace_malloc_init(&trace_data);
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rt = JS_NewRuntime2(&trace_mf, &trace_data);
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@@ -394,7 +461,13 @@ int main(int argc, char **argv)
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fprintf(stderr, "qjs: cannot allocate JS runtime\n");
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exit(2);
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}
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ctx = JS_NewContext(rt);
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if (memory_limit != 0)
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JS_SetMemoryLimit(rt, memory_limit);
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if (stack_size != 0)
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JS_SetMaxStackSize(rt, stack_size);
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js_std_set_worker_new_context_func(JS_NewCustomContext);
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js_std_init_handlers(rt);
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ctx = JS_NewCustomContext(rt);
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if (!ctx) {
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fprintf(stderr, "qjs: cannot allocate JS context\n");
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exit(2);
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@@ -402,7 +475,12 @@ int main(int argc, char **argv)
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/* loader for ES6 modules */
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JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL);
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if (dump_unhandled_promise_rejection) {
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JS_SetHostPromiseRejectionTracker(rt, js_std_promise_rejection_tracker,
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NULL);
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}
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if (!empty_run) {
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#ifdef CONFIG_BIGNUM
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if (load_jscalc) {
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@@ -411,10 +489,6 @@ int main(int argc, char **argv)
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#endif
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js_std_add_helpers(ctx, argc - optind, argv + optind);
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/* system modules */
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js_init_module_std(ctx, "std");
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js_init_module_os(ctx, "os");
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/* make 'std' and 'os' visible to non module code */
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if (load_std) {
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const char *str = "import * as std from 'std';\n"
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@@ -424,6 +498,11 @@ int main(int argc, char **argv)
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eval_buf(ctx, str, strlen(str), "<input>", JS_EVAL_TYPE_MODULE);
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}
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for(i = 0; i < include_count; i++) {
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if (eval_file(ctx, include_list[i], module))
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goto fail;
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}
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if (expr) {
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if (eval_buf(ctx, expr, strlen(expr), "<cmdline>", 0))
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goto fail;
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