forked from cory/tildefriends
90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
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#include "util.js.h"
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#include "task.h"
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static JSValue _util_utf8_decode(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
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{
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JSValue result = JS_NULL;
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size_t length;
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if (JS_IsString(argv[0]))
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{
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result = JS_DupValue(context, argv[0]);
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}
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else
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{
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uint8_t* array = tf_util_try_get_array_buffer(context, &length, argv[0]);
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if (array)
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{
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result = JS_NewStringLen(context, (const char*)array, length);
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}
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else
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{
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size_t offset;
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size_t element_size;
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JSValue buffer = tf_util_try_get_typed_array_buffer(context, argv[0], &offset, &length, &element_size);
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size_t size;
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if (!JS_IsException(buffer))
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{
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array = tf_util_try_get_array_buffer(context, &size, buffer);
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if (array)
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{
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result = JS_NewStringLen(context, (const char*)array, size);
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}
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}
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JS_FreeValue(context, buffer);
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}
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}
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return result;
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}
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JSValue tf_util_utf8_decode(JSContext* context, JSValue value)
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{
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return _util_utf8_decode(context, JS_NULL, 1, &value);
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}
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uint8_t* tf_util_try_get_array_buffer(JSContext *ctx, size_t *psize, JSValueConst obj)
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{
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uint8_t* result = JS_GetArrayBuffer(ctx, psize, obj);
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JS_FreeValue(ctx, JS_GetException(ctx));
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return result;
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}
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JSValue tf_util_try_get_typed_array_buffer(JSContext *ctx, JSValueConst obj, size_t *pbyte_offset, size_t *pbyte_length, size_t *pbytes_per_element)
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{
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JSValue result = JS_GetTypedArrayBuffer(ctx, obj, pbyte_offset, pbyte_length, pbytes_per_element);
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JS_FreeValue(ctx, JS_GetException(ctx));
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return result;
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}
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JSValue _util_print(JSContext* context, JSValueConst this_val, int argc, JSValueConst* argv)
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{
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tf_task_t* task = JS_GetContextOpaque(context);
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if (task)
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{
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printf("Task[%p:%s]>", task, tf_task_get_name(task));
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}
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for (int i = 0; i < argc; ++i)
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{
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if (JS_IsNull(argv[i]))
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{
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printf(" null");
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}
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else
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{
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const char* value = JS_ToCString(context, argv[i]);
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printf(" %s", value);
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JS_FreeCString(context, value);
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}
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}
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printf("\n");
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return JS_NULL;
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}
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void tf_util_register(JSContext* context)
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{
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JSValue global = JS_GetGlobalObject(context);
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JS_SetPropertyStr(context, global, "utf8Decode", JS_NewCFunction(context, _util_utf8_decode, "utf8Decode", 1));
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JS_SetPropertyStr(context, global, "print", JS_NewCFunction(context, _util_print, "print", 1));
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JS_FreeValue(context, global);
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}
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