mirror of
https://github.com/Samsung/escargot.git
synced 2026-06-22 10:01:50 +00:00
697 lines
28 KiB
C++
697 lines
28 KiB
C++
/*
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* Copyright (c) 2017-present Samsung Electronics Co., Ltd
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*/
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#include <string.h>
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#include <vector>
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#include "api/EscargotPublic.h"
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#include "malloc.h"
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#if defined(ESCARGOT_ENABLE_TEST)
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// these header & function below are used for Escargot internal development
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// general client doesn't need this
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#include <GCUtil.h>
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void doFullGCWithoutSeeingStack()
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{
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GC_register_mark_stack_func([]() {
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// do nothing for skip stack
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// assume there is no gc-object on stack
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});
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GC_gcollect();
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GC_gcollect();
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GC_gcollect_and_unmap();
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GC_register_mark_stack_func(nullptr);
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}
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void printEveryReachableGCObjects()
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{
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printf("print reachable pointers -->\n");
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GC_gcollect();
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GC_disable();
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size_t totalRemainSize = 0;
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GC_enumerate_reachable_objects_inner(
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[](void* obj, size_t bytes, void* cd) {
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size_t size;
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int kind = GC_get_kind_and_size(obj, &size);
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void* ptr = GC_USR_PTR_FROM_BASE(obj);
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size_t* totalSize = (size_t*)cd;
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*totalSize += size;
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printf("@@@ kind %d pointer %p size %d\n", (int)kind, ptr, (int)size);
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#if !defined(NDEBUG)
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GC_print_backtrace(ptr);
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#endif
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},
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&totalRemainSize);
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GC_enable();
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printf("<-- end of print reachable pointers %fKB\n", totalRemainSize / 1024.f);
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}
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// <---- these header & function above are used for Escargot internal development
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#endif
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using namespace Escargot;
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static bool stringEndsWith(const std::string& str, const std::string& suffix)
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{
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return str.size() >= suffix.size() && 0 == str.compare(str.size() - suffix.size(), suffix.size(), suffix);
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}
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ValueRef* builtinPrint(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argc >= 1) {
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StringRef* printMsg;
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if (argv[0]->isSymbol()) {
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printMsg = argv[0]->asSymbol()->symbolDescriptiveString();
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puts(printMsg->toStdUTF8String().data());
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state->context()->printDebugger(printMsg);
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} else {
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printMsg = argv[0]->toString(state);
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puts(printMsg->toStdUTF8String().data());
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state->context()->printDebugger(printMsg->toString(state));
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}
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} else {
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puts("undefined");
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}
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return ValueRef::createUndefined();
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}
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static const char32_t offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL, 0x03C82080UL, static_cast<char32_t>(0xFA082080UL), static_cast<char32_t>(0x82082080UL) };
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char32_t readUTF8Sequence(const char*& sequence, bool& valid, int& charlen)
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{
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unsigned length;
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const char sch = *sequence;
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valid = true;
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if ((sch & 0x80) == 0)
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length = 1;
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else {
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unsigned char ch2 = static_cast<unsigned char>(*(sequence + 1));
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if ((sch & 0xE0) == 0xC0
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&& (ch2 & 0xC0) == 0x80)
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length = 2;
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else {
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unsigned char ch3 = static_cast<unsigned char>(*(sequence + 2));
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if ((sch & 0xF0) == 0xE0
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&& (ch2 & 0xC0) == 0x80
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&& (ch3 & 0xC0) == 0x80)
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length = 3;
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else {
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unsigned char ch4 = static_cast<unsigned char>(*(sequence + 3));
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if ((sch & 0xF8) == 0xF0
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&& (ch2 & 0xC0) == 0x80
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&& (ch3 & 0xC0) == 0x80
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&& (ch4 & 0xC0) == 0x80)
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length = 4;
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else {
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valid = false;
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sequence++;
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return -1;
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}
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}
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}
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}
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charlen = length;
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char32_t ch = 0;
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switch (length) {
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case 4:
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ch += static_cast<unsigned char>(*sequence++);
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ch <<= 6; // Fall through.
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case 3:
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ch += static_cast<unsigned char>(*sequence++);
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ch <<= 6; // Fall through.
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case 2:
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ch += static_cast<unsigned char>(*sequence++);
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ch <<= 6; // Fall through.
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case 1:
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ch += static_cast<unsigned char>(*sequence++);
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}
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return ch - offsetsFromUTF8[length - 1];
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}
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static OptionalRef<StringRef> builtinHelperFileRead(OptionalRef<ExecutionStateRef> state, const char* fileName, const char* builtinName)
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{
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FILE* fp = fopen(fileName, "r");
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if (fp) {
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StringRef* src = StringRef::emptyString();
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std::string utf8Str;
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std::basic_string<unsigned char, std::char_traits<unsigned char>> str;
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char buf[512];
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bool hasNonLatin1Content = false;
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size_t readLen;
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while ((readLen = fread(buf, 1, sizeof buf, fp))) {
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if (!hasNonLatin1Content) {
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const char* source = buf;
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int charlen;
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bool valid;
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while (source < buf + readLen) {
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char32_t ch = readUTF8Sequence(source, valid, charlen);
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if (ch > 255) {
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hasNonLatin1Content = true;
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fseek(fp, 0, SEEK_SET);
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break;
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} else {
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str += (unsigned char)ch;
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}
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}
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} else {
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utf8Str.append(buf, readLen);
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}
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}
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fclose(fp);
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if (StringRef::isCompressibleStringEnabled()) {
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if (state) {
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if (hasNonLatin1Content) {
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src = StringRef::createFromUTF8ToCompressibleString(state->context(), utf8Str.data(), utf8Str.length());
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} else {
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src = StringRef::createFromLatin1ToCompressibleString(state->context(), str.data(), str.length());
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}
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} else {
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if (hasNonLatin1Content) {
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src = StringRef::createFromUTF8(utf8Str.data(), utf8Str.length());
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} else {
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src = StringRef::createFromLatin1(str.data(), str.length());
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}
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}
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} else {
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if (hasNonLatin1Content) {
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src = StringRef::createFromUTF8(utf8Str.data(), utf8Str.length());
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} else {
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src = StringRef::createFromLatin1(str.data(), str.length());
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}
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}
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return src;
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} else {
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char msg[1024];
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snprintf(msg, sizeof(msg), "GlobalObject.%s: cannot open file %s", builtinName, fileName);
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if (state) {
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state->throwException(URIErrorObjectRef::create(state.get(), StringRef::createFromUTF8(msg, strnlen(msg, sizeof msg))));
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} else {
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puts(msg);
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}
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return nullptr;
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}
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}
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static ValueRef* builtinLoad(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argc >= 1) {
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auto f = argv[0]->toString(state)->toStdUTF8String();
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const char* fileName = f.data();
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StringRef* src = builtinHelperFileRead(state, fileName, "load").value();
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bool isModule = stringEndsWith(f, "mjs");
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auto script = state->context()->scriptParser()->initializeScript(src, argv[0]->toString(state), isModule).fetchScriptThrowsExceptionIfParseError(state);
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return script->execute(state);
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} else {
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return ValueRef::createUndefined();
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}
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}
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static ValueRef* builtinRead(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argc >= 1) {
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auto f = argv[0]->toString(state)->toStdUTF8String();
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const char* fileName = f.data();
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StringRef* src = builtinHelperFileRead(state, fileName, "read").value();
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return src;
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} else {
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return StringRef::emptyString();
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}
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}
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static ValueRef* builtinRun(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argc >= 1) {
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double startTime = DateObjectRef::currentTime();
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auto f = argv[0]->toString(state)->toStdUTF8String();
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const char* fileName = f.data();
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StringRef* src = builtinHelperFileRead(state, fileName, "run").value();
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bool isModule = stringEndsWith(f, "mjs");
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auto script = state->context()->scriptParser()->initializeScript(src, argv[0]->toString(state), isModule).fetchScriptThrowsExceptionIfParseError(state);
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script->execute(state);
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return ValueRef::create(DateObjectRef::currentTime() - startTime);
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} else {
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return ValueRef::create(0);
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}
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}
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static ValueRef* builtinGc(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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Memory::gc();
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return ValueRef::createUndefined();
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}
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#if defined(ESCARGOT_ENABLE_TEST)
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static ValueRef* builtinUneval(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argc) {
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if (argv[0]->isSymbol()) {
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return argv[0]->asSymbol()->symbolDescriptiveString();
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}
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return argv[0]->toString(state);
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}
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return StringRef::emptyString();
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}
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static ValueRef* builtinDrainJobQueue(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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ContextRef* context = state->context();
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while (context->vmInstance()->hasPendingPromiseJob()) {
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auto jobResult = context->vmInstance()->executePendingPromiseJob();
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if (jobResult.error) {
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return ValueRef::create(false);
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}
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}
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return ValueRef::create(true);
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}
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static ValueRef* builtinAddPromiseReactions(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argc >= 3) {
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PromiseObjectRef* promise = argv[0]->toObject(state)->asPromiseObject();
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promise->then(state, argv[1], argv[2]);
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} else {
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state->throwException(TypeErrorObjectRef::create(state, StringRef::emptyString()));
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}
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return ValueRef::createUndefined();
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}
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static ValueRef* builtinCreateNewGlobalObject(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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return ContextRef::create(state->context()->vmInstance())->globalObject();
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}
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PersistentRefHolder<ContextRef> createEscargotContext(VMInstanceRef* instance);
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static ValueRef* builtin262CreateRealm(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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auto newContext = createEscargotContext(state->context()->vmInstance());
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return newContext->globalObject()->get(state, StringRef::createFromASCII("$262"));
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}
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static ValueRef* builtin262DetachArrayBuffer(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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if (argv[0]->isArrayBufferObject()) {
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argv[0]->asArrayBufferObject()->detachArrayBuffer(state);
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}
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return ValueRef::createUndefined();
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}
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static ValueRef* builtin262EvalScript(ExecutionStateRef* state, ValueRef* thisValue, size_t argc, ValueRef** argv, bool isConstructCall)
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{
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StringRef* src = argv[0]->toString(state);
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auto script = state->context()->scriptParser()->initializeScript(src, StringRef::createFromASCII("$262.evalScript input"), false).fetchScriptThrowsExceptionIfParseError(state);
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return script->execute(state);
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}
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#endif
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PersistentRefHolder<ContextRef> createEscargotContext(VMInstanceRef* instance)
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{
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PersistentRefHolder<ContextRef> context = ContextRef::create(instance);
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Evaluator::execute(context, [](ExecutionStateRef* state) -> ValueRef* {
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ContextRef* context = state->context();
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "print"), builtinPrint, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("print"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "load"), builtinLoad, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("load"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "read"), builtinRead, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("read"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "run"), builtinRun, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("run"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "gc"), builtinGc, 0, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("gc"), buildFunctionObjectRef, true, true, true);
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}
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#if defined(ESCARGOT_ENABLE_TEST)
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// There is no specific standard for the [@@toStringTag] property of global object.
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// But "global" string is added here to pass legacy TCs
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context->globalObject()->defineDataProperty(state, context->vmInstance()->toStringTagSymbol(), ObjectRef::DataPropertyDescriptor(AtomicStringRef::create(context, "global")->string(), (ObjectRef::PresentAttribute)(ObjectRef::NonWritablePresent | ObjectRef::NonEnumerablePresent | ObjectRef::ConfigurablePresent)));
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "uneval"), builtinUneval, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("uneval"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "drainJobQueue"), builtinDrainJobQueue, 0, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("drainJobQueue"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "addPromiseReactions"), builtinAddPromiseReactions, 3, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("addPromiseReactions"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "createNewGlobalObject"), builtinCreateNewGlobalObject, 0, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("createNewGlobalObject"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "newGlobal"), builtinCreateNewGlobalObject, 0, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("newGlobal"), buildFunctionObjectRef, true, true, true);
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}
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// https://github.com/tc39/test262/blob/master/INTERPRETING.md
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{
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ObjectRef* dollor262Object = ObjectRef::create(state);
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "createRealm"), builtin262CreateRealm, 0, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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dollor262Object->defineDataProperty(state, StringRef::createFromASCII("createRealm"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "detachArrayBuffer"), builtin262DetachArrayBuffer, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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dollor262Object->defineDataProperty(state, StringRef::createFromASCII("detachArrayBuffer"), buildFunctionObjectRef, true, true, true);
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}
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{
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FunctionObjectRef::NativeFunctionInfo nativeFunctionInfo(AtomicStringRef::create(context, "evalScript"), builtin262EvalScript, 1, true, false);
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FunctionObjectRef* buildFunctionObjectRef = FunctionObjectRef::create(state, nativeFunctionInfo);
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dollor262Object->defineDataProperty(state, StringRef::createFromASCII("evalScript"), buildFunctionObjectRef, true, true, true);
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}
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{
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dollor262Object->defineDataProperty(state, StringRef::createFromASCII("global"), context->globalObject(), true, true, true);
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}
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{
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dollor262Object->defineDataProperty(state, StringRef::createFromASCII("IsHTMLDDA"), ValueRef::create(false), true, true, true);
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}
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context->globalObject()->defineDataProperty(state, StringRef::createFromASCII("$262"), dollor262Object, true, false, true);
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}
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#endif
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return ValueRef::createUndefined();
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});
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return context;
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}
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class ShellPlatform : public PlatformRef {
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public:
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virtual void didPromiseJobEnqueued(ContextRef* relatedContext, PromiseObjectRef* obj) override
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{
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// ignore. we always check pending job after eval script
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}
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static std::string dirnameOf(const std::string& fname)
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{
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size_t pos = fname.find_last_of("/");
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if (std::string::npos == pos) {
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pos = fname.find_last_of("\\/");
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}
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return (std::string::npos == pos)
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? ""
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: fname.substr(0, pos);
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|
}
|
|
|
|
static std::string absolutePath(const std::string& referrerPath, const std::string& src)
|
|
{
|
|
std::string utf8MayRelativePath = dirnameOf(referrerPath) + "/" + src;
|
|
auto absPath = realpath(utf8MayRelativePath.data(), nullptr);
|
|
if (!absPath) {
|
|
return std::string();
|
|
}
|
|
std::string utf8AbsolutePath = absPath ? absPath : "";
|
|
free(absPath);
|
|
|
|
return utf8AbsolutePath;
|
|
}
|
|
|
|
static std::string absolutePath(const std::string& src)
|
|
{
|
|
auto absPath = realpath(src.data(), nullptr);
|
|
std::string utf8AbsolutePath = absPath;
|
|
free(absPath);
|
|
|
|
return utf8AbsolutePath;
|
|
}
|
|
|
|
std::vector<std::tuple<std::string /* abs path */, ContextRef*, PersistentRefHolder<ScriptRef>>> loadedModules;
|
|
virtual LoadModuleResult onLoadModule(ContextRef* relatedContext, ScriptRef* whereRequestFrom, StringRef* moduleSrc) override
|
|
{
|
|
std::string referrerPath = whereRequestFrom->src()->toStdUTF8String();
|
|
|
|
for (size_t i = 0; i < loadedModules.size(); i++) {
|
|
if (std::get<2>(loadedModules[i]) == whereRequestFrom) {
|
|
referrerPath = std::get<0>(loadedModules[i]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
std::string absPath = absolutePath(referrerPath, moduleSrc->toStdUTF8String());
|
|
if (absPath.length() == 0) {
|
|
std::string s = "Error reading : " + moduleSrc->toStdUTF8String();
|
|
return LoadModuleResult(ErrorObjectRef::Code::None, StringRef::createFromUTF8(s.data(), s.length()));
|
|
}
|
|
|
|
for (size_t i = 0; i < loadedModules.size(); i++) {
|
|
if (std::get<0>(loadedModules[i]) == absPath && std::get<1>(loadedModules[i]) == relatedContext) {
|
|
return LoadModuleResult(std::get<2>(loadedModules[i]));
|
|
}
|
|
}
|
|
|
|
OptionalRef<StringRef> source = builtinHelperFileRead(nullptr, absPath.data(), "");
|
|
if (!source) {
|
|
std::string s = "Error reading : " + absPath;
|
|
return LoadModuleResult(ErrorObjectRef::Code::None, StringRef::createFromUTF8(s.data(), s.length()));
|
|
}
|
|
|
|
auto parseResult = relatedContext->scriptParser()->initializeScript(source.value(), moduleSrc, true);
|
|
if (!parseResult.isSuccessful()) {
|
|
return LoadModuleResult(parseResult.parseErrorCode, parseResult.parseErrorMessage);
|
|
}
|
|
|
|
loadedModules.push_back(std::make_tuple(absPath, relatedContext, PersistentRefHolder<ScriptRef>(parseResult.script.get())));
|
|
return LoadModuleResult(parseResult.script.get());
|
|
}
|
|
|
|
virtual void didLoadModule(ContextRef* relatedContext, OptionalRef<ScriptRef> referrer, ScriptRef* loadedModule) override
|
|
{
|
|
std::string path;
|
|
if (referrer) {
|
|
path = absolutePath(referrer->src()->toStdUTF8String(), loadedModule->src()->toStdUTF8String());
|
|
} else {
|
|
path = absolutePath(loadedModule->src()->toStdUTF8String());
|
|
}
|
|
loadedModules.push_back(std::make_tuple(path, relatedContext, PersistentRefHolder<ScriptRef>(loadedModule)));
|
|
}
|
|
};
|
|
|
|
static bool evalScript(ContextRef* context, StringRef* str, StringRef* fileName, bool shouldPrintScriptResult, bool isModule)
|
|
{
|
|
if (stringEndsWith(fileName->toStdUTF8String(), "mjs")) {
|
|
isModule = isModule || true;
|
|
}
|
|
|
|
auto scriptInitializeResult = context->scriptParser()->initializeScript(str, fileName, isModule);
|
|
if (!scriptInitializeResult.script) {
|
|
printf("Script parsing error: ");
|
|
switch (scriptInitializeResult.parseErrorCode) {
|
|
case Escargot::ErrorObjectRef::Code::SyntaxError:
|
|
printf("SyntaxError");
|
|
break;
|
|
case Escargot::ErrorObjectRef::Code::EvalError:
|
|
printf("EvalError");
|
|
break;
|
|
case Escargot::ErrorObjectRef::Code::RangeError:
|
|
printf("RangeError");
|
|
break;
|
|
case Escargot::ErrorObjectRef::Code::ReferenceError:
|
|
printf("ReferenceError");
|
|
break;
|
|
case Escargot::ErrorObjectRef::Code::TypeError:
|
|
printf("TypeError");
|
|
break;
|
|
case Escargot::ErrorObjectRef::Code::URIError:
|
|
printf("URIError");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
printf(": %s\n", scriptInitializeResult.parseErrorMessage->toStdUTF8String().data());
|
|
return false;
|
|
}
|
|
|
|
auto evalResult = Evaluator::execute(context, [](ExecutionStateRef* state, ScriptRef* script) -> ValueRef* {
|
|
return script->execute(state);
|
|
},
|
|
scriptInitializeResult.script.get());
|
|
|
|
if (!evalResult.isSuccessful()) {
|
|
printf("Uncaught %s:\n", evalResult.resultOrErrorToString(context)->toStdUTF8String().data());
|
|
for (size_t i = 0; i < evalResult.stackTraceData.size(); i++) {
|
|
printf("%s (%d:%d)\n", evalResult.stackTraceData[i].src->toStdUTF8String().data(), (int)evalResult.stackTraceData[i].loc.line, (int)evalResult.stackTraceData[i].loc.column);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (shouldPrintScriptResult) {
|
|
puts(evalResult.resultOrErrorToString(context)->toStdUTF8String().data());
|
|
}
|
|
|
|
while (context->vmInstance()->hasPendingPromiseJob()) {
|
|
auto jobResult = context->vmInstance()->executePendingPromiseJob();
|
|
if (shouldPrintScriptResult) {
|
|
if (jobResult.error) {
|
|
printf("Uncaught %s:\n", jobResult.resultOrErrorToString(context)->toStdUTF8String().data());
|
|
} else {
|
|
printf("%s\n", jobResult.resultOrErrorToString(context)->toStdUTF8String().data());
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
#ifndef NDEBUG
|
|
setbuf(stdout, NULL);
|
|
setbuf(stderr, NULL);
|
|
#endif
|
|
|
|
#ifdef M_MMAP_THRESHOLD
|
|
mallopt(M_MMAP_THRESHOLD, 2048);
|
|
#endif
|
|
#ifdef M_MMAP_MAX
|
|
mallopt(M_MMAP_MAX, 1024 * 1024);
|
|
#endif
|
|
|
|
Globals::initialize();
|
|
|
|
Memory::setGCFrequency(24);
|
|
|
|
ShellPlatform* platform = new ShellPlatform();
|
|
PersistentRefHolder<VMInstanceRef> instance = VMInstanceRef::create(platform);
|
|
instance->setOnVMInstanceDelete([](VMInstanceRef* instance) {
|
|
delete instance->platform();
|
|
});
|
|
PersistentRefHolder<ContextRef> context = createEscargotContext(instance.get());
|
|
|
|
if (getenv("GC_FREE_SPACE_DIVISOR") && strlen(getenv("GC_FREE_SPACE_DIVISOR"))) {
|
|
int d = atoi(getenv("GC_FREE_SPACE_DIVISOR"));
|
|
Memory::setGCFrequency(d);
|
|
}
|
|
|
|
bool runShell = true;
|
|
bool seenModule = false;
|
|
for (int i = 1; i < argc; i++) {
|
|
if (strlen(argv[i]) >= 2 && argv[i][0] == '-') { // parse command line option
|
|
if (argv[i][1] == '-') { // `--option` case
|
|
if (strcmp(argv[i], "--shell") == 0) {
|
|
runShell = true;
|
|
continue;
|
|
}
|
|
if (strcmp(argv[i], "--module") == 0) {
|
|
seenModule = true;
|
|
continue;
|
|
}
|
|
if (strcmp(argv[i], "--start-debug-server") == 0) {
|
|
context->initDebugger(nullptr);
|
|
continue;
|
|
}
|
|
} else { // `-option` case
|
|
if (strcmp(argv[i], "-e") == 0) {
|
|
runShell = false;
|
|
i++;
|
|
StringRef* src = StringRef::createFromUTF8(argv[i], strlen(argv[i]));
|
|
if (!evalScript(context, src, StringRef::createFromASCII("shell input"), false, false))
|
|
return 3;
|
|
continue;
|
|
}
|
|
if (strcmp(argv[i], "-f") == 0) {
|
|
continue;
|
|
}
|
|
}
|
|
fprintf(stderr, "Cannot recognize option `%s`", argv[i]);
|
|
// return 3;
|
|
continue;
|
|
}
|
|
|
|
FILE* fp = fopen(argv[i], "r");
|
|
if (fp) {
|
|
fclose(fp);
|
|
runShell = false;
|
|
|
|
StringRef* src = Evaluator::execute(context, [](ExecutionStateRef* state, char* c) -> ValueRef* {
|
|
return builtinHelperFileRead(state, c, "read").get();
|
|
},
|
|
argv[i])
|
|
.result->asString();
|
|
|
|
if (!evalScript(context, src, StringRef::createFromUTF8(argv[i], strlen(argv[i])), false, seenModule)) {
|
|
return 3;
|
|
}
|
|
seenModule = false;
|
|
} else {
|
|
runShell = false;
|
|
printf("Cannot open file %s\n", argv[i]);
|
|
return 3;
|
|
}
|
|
}
|
|
|
|
while (runShell) {
|
|
static char buf[2048];
|
|
printf("escargot> ");
|
|
if (!fgets(buf, sizeof buf, stdin)) {
|
|
printf("ERROR: Cannot read interactive shell input\n");
|
|
return 3;
|
|
}
|
|
StringRef* str = Escargot::StringRef::createFromUTF8(buf, strlen(buf));
|
|
evalScript(context, str, StringRef::createFromASCII("from shell input"), true, false);
|
|
}
|
|
|
|
context.release();
|
|
instance.release();
|
|
|
|
Globals::finalize();
|
|
|
|
return 0;
|
|
}
|