VM::VM(VMType vmType, HeapType heapType)
: m_apiLock(adoptRef(new JSLock(this)))
#if ENABLE(ASSEMBLER)
, executableAllocator(*this)
#endif
, heap(this, heapType)
, vmType(vmType)
, clientData(0)
, topVMEntryFrame(nullptr)
, topCallFrame(CallFrame::noCaller())
, m_atomicStringTable(vmType == Default ? wtfThreadData().atomicStringTable() : new AtomicStringTable)
, propertyNames(nullptr)
, emptyList(new MarkedArgumentBuffer)
, customGetterSetterFunctionMap(*this)
, stringCache(*this)
, prototypeMap(*this)
, interpreter(0)
, jsArrayClassInfo(JSArray::info())
, jsFinalObjectClassInfo(JSFinalObject::info())
, sizeOfLastScratchBuffer(0)
, entryScope(0)
, m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
, m_rtTraceList(new RTTraceList())
#endif
#if ENABLE(ASSEMBLER)
, m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(JIT)
, m_canUseJIT(m_canUseAssembler && Options::useJIT())
#endif
#if ENABLE(YARR_JIT)
, m_canUseRegExpJIT(m_canUseAssembler && Options::useRegExpJIT())
#endif
#if ENABLE(GC_VALIDATION)
, m_initializingObjectClass(0)
#endif
, m_stackPointerAtVMEntry(0)
, m_stackLimit(0)
#if !ENABLE(JIT)
, m_jsStackLimit(0)
#endif
#if ENABLE(FTL_JIT)
, m_ftlStackLimit(0)
, m_largestFTLStackSize(0)
#endif
, m_inDefineOwnProperty(false)
, m_codeCache(std::make_unique<CodeCache>())
, m_enabledProfiler(nullptr)
, m_builtinExecutables(std::make_unique<BuiltinExecutables>(*this))
, m_typeProfilerEnabledCount(0)
, m_controlFlowProfilerEnabledCount(0)
{
interpreter = new Interpreter(*this);
StackBounds stack = wtfThreadData().stack();
updateReservedZoneSize(Options::reservedZoneSize());
#if !ENABLE(JIT)
interpreter->stack().setReservedZoneSize(Options::reservedZoneSize());
#endif
setLastStackTop(stack.origin());
// Need to be careful to keep everything consistent here
JSLockHolder lock(this);
AtomicStringTable* existingEntryAtomicStringTable = wtfThreadData().setCurrentAtomicStringTable(m_atomicStringTable);
propertyNames = new CommonIdentifiers(this);
structureStructure.set(*this, Structure::createStructure(*this));
structureRareDataStructure.set(*this, StructureRareData::createStructure(*this, 0, jsNull()));
terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
propertyNameEnumeratorStructure.set(*this, JSPropertyNameEnumerator::createStructure(*this, 0, jsNull()));
getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
customGetterSetterStructure.set(*this, CustomGetterSetter::createStructure(*this, 0, jsNull()));
scopedArgumentsTableStructure.set(*this, ScopedArgumentsTable::createStructure(*this, 0, jsNull()));
apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
JSScopeStructure.set(*this, JSScope::createStructure(*this, 0, jsNull()));
executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
#if ENABLE(WEBASSEMBLY)
webAssemblyExecutableStructure.set(*this, WebAssemblyExecutable::createStructure(*this, 0, jsNull()));
#endif
moduleProgramExecutableStructure.set(*this, ModuleProgramExecutable::createStructure(*this, 0, jsNull()));
regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
symbolStructure.set(*this, Symbol::createStructure(*this, 0, jsNull()));
symbolTableStructure.set(*this, SymbolTable::createStructure(*this, 0, jsNull()));
structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
sparseArrayValueMapStructure.set(*this, SparseArrayValueMap::createStructure(*this, 0, jsNull()));
templateRegistryKeyStructure.set(*this, JSTemplateRegistryKey::createStructure(*this, 0, jsNull()));
arrayBufferNeuteringWatchpointStructure.set(*this, ArrayBufferNeuteringWatchpoint::createStructure(*this));
unlinkedFunctionExecutableStructure.set(*this, UnlinkedFunctionExecutable::createStructure(*this, 0, jsNull()));
unlinkedProgramCodeBlockStructure.set(*this, UnlinkedProgramCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedEvalCodeBlockStructure.set(*this, UnlinkedEvalCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedFunctionCodeBlockStructure.set(*this, UnlinkedFunctionCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedModuleProgramCodeBlockStructure.set(*this, UnlinkedModuleProgramCodeBlock::createStructure(*this, 0, jsNull()));
propertyTableStructure.set(*this, PropertyTable::createStructure(*this, 0, jsNull()));
weakMapDataStructure.set(*this, WeakMapData::createStructure(*this, 0, jsNull()));
inferredValueStructure.set(*this, InferredValue::createStructure(*this, 0, jsNull()));
inferredTypeStructure.set(*this, InferredType::createStructure(*this, 0, jsNull()));
inferredTypeTableStructure.set(*this, InferredTypeTable::createStructure(*this, 0, jsNull()));
functionRareDataStructure.set(*this, FunctionRareData::createStructure(*this, 0, jsNull()));
generatorFrameStructure.set(*this, GeneratorFrame::createStructure(*this, 0, jsNull()));
exceptionStructure.set(*this, Exception::createStructure(*this, 0, jsNull()));
promiseDeferredStructure.set(*this, JSPromiseDeferred::createStructure(*this, 0, jsNull()));
internalPromiseDeferredStructure.set(*this, JSInternalPromiseDeferred::createStructure(*this, 0, jsNull()));
programCodeBlockStructure.set(*this, ProgramCodeBlock::createStructure(*this, 0, jsNull()));
moduleProgramCodeBlockStructure.set(*this, ModuleProgramCodeBlock::createStructure(*this, 0, jsNull()));
evalCodeBlockStructure.set(*this, EvalCodeBlock::createStructure(*this, 0, jsNull()));
functionCodeBlockStructure.set(*this, FunctionCodeBlock::createStructure(*this, 0, jsNull()));
#if ENABLE(WEBASSEMBLY)
webAssemblyCodeBlockStructure.set(*this, WebAssemblyCodeBlock::createStructure(*this, 0, jsNull()));
#endif
iterationTerminator.set(*this, JSFinalObject::create(*this, JSFinalObject::createStructure(*this, 0, jsNull(), 1)));
nativeStdFunctionCellStructure.set(*this, NativeStdFunctionCell::createStructure(*this, 0, jsNull()));
smallStrings.initializeCommonStrings(*this);
wtfThreadData().setCurrentAtomicStringTable(existingEntryAtomicStringTable);
#if ENABLE(JIT)
jitStubs = std::make_unique<JITThunks>();
allCalleeSaveRegisterOffsets = std::make_unique<RegisterAtOffsetList>(RegisterSet::vmCalleeSaveRegisters(), RegisterAtOffsetList::ZeroBased);
#endif
arityCheckData = std::make_unique<CommonSlowPaths::ArityCheckData>();
#if ENABLE(FTL_JIT)
ftlThunks = std::make_unique<FTL::Thunks>();
#endif // ENABLE(FTL_JIT)
interpreter->initialize();
#if ENABLE(JIT)
initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.
#endif
heap.notifyIsSafeToCollect();
LLInt::Data::performAssertions(*this);
if (Options::useProfiler()) {
m_perBytecodeProfiler = std::make_unique<Profiler::Database>(*this);
StringPrintStream pathOut;
const char* profilerPath = getenv("JSC_PROFILER_PATH");
if (profilerPath)
pathOut.print(profilerPath, "/");
pathOut.print("JSCProfile-", getCurrentProcessID(), "-", m_perBytecodeProfiler->databaseID(), ".json");
m_perBytecodeProfiler->registerToSaveAtExit(pathOut.toCString().data());
}
callFrameForCatch = nullptr;
#if ENABLE(DFG_JIT)
if (canUseJIT())
dfgState = std::make_unique<DFG::LongLivedState>();
#endif
// Initialize this last, as a free way of asserting that VM initialization itself
// won't use this.
m_typedArrayController = adoptRef(new SimpleTypedArrayController());
m_bytecodeIntrinsicRegistry = std::make_unique<BytecodeIntrinsicRegistry>(*this);
if (Options::useTypeProfiler())
enableTypeProfiler();
if (Options::useControlFlowProfiler())
enableControlFlowProfiler();
#if ENABLE(SAMPLING_PROFILER)
if (Options::useSamplingProfiler()) {
setShouldBuildPCToCodeOriginMapping();
m_samplingProfiler = adoptRef(new SamplingProfiler(*this, Stopwatch::create()));
m_samplingProfiler->start();
}
#endif // ENABLE(SAMPLING_PROFILER)
if (Options::alwaysGeneratePCToCodeOriginMap())
setShouldBuildPCToCodeOriginMapping();
if (Options::watchdog()) {
std::chrono::milliseconds timeoutMillis(Options::watchdog());
Watchdog& watchdog = ensureWatchdog();
watchdog.setTimeLimit(timeoutMillis);
}
}
JSGlobalData::JSGlobalData(GlobalDataType globalDataType, HeapType heapType)
:
#if ENABLE(ASSEMBLER)
executableAllocator(*this),
#endif
heap(this, heapType)
, globalDataType(globalDataType)
, clientData(0)
, topCallFrame(CallFrame::noCaller())
, arrayConstructorTable(fastNew<HashTable>(JSC::arrayConstructorTable))
, arrayPrototypeTable(fastNew<HashTable>(JSC::arrayPrototypeTable))
, booleanPrototypeTable(fastNew<HashTable>(JSC::booleanPrototypeTable))
, dateTable(fastNew<HashTable>(JSC::dateTable))
, dateConstructorTable(fastNew<HashTable>(JSC::dateConstructorTable))
, errorPrototypeTable(fastNew<HashTable>(JSC::errorPrototypeTable))
, globalObjectTable(fastNew<HashTable>(JSC::globalObjectTable))
, jsonTable(fastNew<HashTable>(JSC::jsonTable))
, mathTable(fastNew<HashTable>(JSC::mathTable))
, numberConstructorTable(fastNew<HashTable>(JSC::numberConstructorTable))
, numberPrototypeTable(fastNew<HashTable>(JSC::numberPrototypeTable))
, objectConstructorTable(fastNew<HashTable>(JSC::objectConstructorTable))
, objectPrototypeTable(fastNew<HashTable>(JSC::objectPrototypeTable))
, privateNamePrototypeTable(fastNew<HashTable>(JSC::privateNamePrototypeTable))
, regExpTable(fastNew<HashTable>(JSC::regExpTable))
, regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
, regExpPrototypeTable(fastNew<HashTable>(JSC::regExpPrototypeTable))
, stringTable(fastNew<HashTable>(JSC::stringTable))
, stringConstructorTable(fastNew<HashTable>(JSC::stringConstructorTable))
, identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
, propertyNames(new CommonIdentifiers(this))
, emptyList(new MarkedArgumentBuffer)
, parserArena(adoptPtr(new ParserArena))
, keywords(adoptPtr(new Keywords(this)))
, interpreter(0)
, jsArrayClassInfo(&JSArray::s_info)
, jsFinalObjectClassInfo(&JSFinalObject::s_info)
#if ENABLE(DFG_JIT)
, sizeOfLastScratchBuffer(0)
#endif
, dynamicGlobalObject(0)
, cachedUTCOffset(QNaN)
, m_enabledProfiler(0)
, m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
, m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
, exclusiveThread(0)
#endif
#if CPU(X86) && ENABLE(JIT)
, m_timeoutCount(512)
#endif
, m_newStringsSinceLastHashConst(0)
#if ENABLE(ASSEMBLER)
, m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(JIT)
, m_canUseJIT(m_canUseAssembler && Options::useJIT())
#endif
#if ENABLE(YARR_JIT)
, m_canUseRegExpJIT(m_canUseAssembler && Options::useRegExpJIT())
#endif
#if ENABLE(GC_VALIDATION)
, m_initializingObjectClass(0)
#endif
, m_inDefineOwnProperty(false)
, m_codeCache(CodeCache::create())
{
interpreter = new Interpreter(*this);
// Need to be careful to keep everything consistent here
JSLockHolder lock(this);
IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
structureStructure.set(*this, Structure::createStructure(*this));
structureRareDataStructure.set(*this, StructureRareData::createStructure(*this, 0, jsNull()));
debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
interruptedExecutionErrorStructure.set(*this, InterruptedExecutionError::createStructure(*this, 0, jsNull()));
terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
JSScopeStructure.set(*this, JSScope::createStructure(*this, 0, jsNull()));
executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
sharedSymbolTableStructure.set(*this, SharedSymbolTable::createStructure(*this, 0, jsNull()));
structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
sparseArrayValueMapStructure.set(*this, SparseArrayValueMap::createStructure(*this, 0, jsNull()));
withScopeStructure.set(*this, JSWithScope::createStructure(*this, 0, jsNull()));
unlinkedFunctionExecutableStructure.set(*this, UnlinkedFunctionExecutable::createStructure(*this, 0, jsNull()));
unlinkedProgramCodeBlockStructure.set(*this, UnlinkedProgramCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedEvalCodeBlockStructure.set(*this, UnlinkedEvalCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedFunctionCodeBlockStructure.set(*this, UnlinkedFunctionCodeBlock::createStructure(*this, 0, jsNull()));
smallStrings.initializeCommonStrings(*this);
wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);
#if ENABLE(JIT)
jitStubs = adoptPtr(new JITThunks());
performPlatformSpecificJITAssertions(this);
#endif
interpreter->initialize(this->canUseJIT());
#if ENABLE(JIT)
initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.
#endif
heap.notifyIsSafeToCollect();
LLInt::Data::performAssertions(*this);
if (Options::enableProfiler())
m_perBytecodeProfiler = adoptPtr(new Profiler::Database(*this));
#if ENABLE(DFG_JIT)
if (canUseJIT())
m_dfgState = adoptPtr(new DFG::LongLivedState());
#endif
}
JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType threadStackType, HeapType heapType)
: heap(this, heapType)
, globalDataType(globalDataType)
, clientData(0)
, topCallFrame(CallFrame::noCaller())
, arrayConstructorTable(fastNew<HashTable>(JSC::arrayConstructorTable))
, arrayPrototypeTable(fastNew<HashTable>(JSC::arrayPrototypeTable))
, booleanPrototypeTable(fastNew<HashTable>(JSC::booleanPrototypeTable))
, dateTable(fastNew<HashTable>(JSC::dateTable))
, dateConstructorTable(fastNew<HashTable>(JSC::dateConstructorTable))
, errorPrototypeTable(fastNew<HashTable>(JSC::errorPrototypeTable))
, globalObjectTable(fastNew<HashTable>(JSC::globalObjectTable))
, jsonTable(fastNew<HashTable>(JSC::jsonTable))
, mathTable(fastNew<HashTable>(JSC::mathTable))
, numberConstructorTable(fastNew<HashTable>(JSC::numberConstructorTable))
, numberPrototypeTable(fastNew<HashTable>(JSC::numberPrototypeTable))
, objectConstructorTable(fastNew<HashTable>(JSC::objectConstructorTable))
, objectPrototypeTable(fastNew<HashTable>(JSC::objectPrototypeTable))
, privateNamePrototypeTable(fastNew<HashTable>(JSC::privateNamePrototypeTable))
, regExpTable(fastNew<HashTable>(JSC::regExpTable))
, regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
, regExpPrototypeTable(fastNew<HashTable>(JSC::regExpPrototypeTable))
, stringTable(fastNew<HashTable>(JSC::stringTable))
, stringConstructorTable(fastNew<HashTable>(JSC::stringConstructorTable))
, identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
, propertyNames(new CommonIdentifiers(this))
, emptyList(new MarkedArgumentBuffer)
#if ENABLE(ASSEMBLER)
, executableAllocator(*this)
#endif
, parserArena(adoptPtr(new ParserArena))
, keywords(adoptPtr(new Keywords(this)))
, interpreter(0)
, jsArrayClassInfo(&JSArray::s_info)
, jsFinalObjectClassInfo(&JSFinalObject::s_info)
#if ENABLE(DFG_JIT)
, sizeOfLastScratchBuffer(0)
#endif
, dynamicGlobalObject(0)
, cachedUTCOffset(std::numeric_limits<double>::quiet_NaN())
, maxReentryDepth(threadStackType == ThreadStackTypeSmall ? MaxSmallThreadReentryDepth : MaxLargeThreadReentryDepth)
, m_enabledProfiler(0)
, m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
, m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
, exclusiveThread(0)
#endif
#if CPU(X86) && ENABLE(JIT)
, m_timeoutCount(512)
#endif
, m_newStringsSinceLastHashConst(0)
#if ENABLE(ASSEMBLER) && (ENABLE(CLASSIC_INTERPRETER) || ENABLE(LLINT))
, m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(GC_VALIDATION)
, m_initializingObjectClass(0)
#endif
, m_inDefineOwnProperty(false)
{
interpreter = new Interpreter;
// Need to be careful to keep everything consistent here
JSLockHolder lock(this);
IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
structureStructure.set(*this, Structure::createStructure(*this));
debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
activationStructure.set(*this, JSActivation::createStructure(*this, 0, jsNull()));
interruptedExecutionErrorStructure.set(*this, InterruptedExecutionError::createStructure(*this, 0, jsNull()));
terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
staticScopeStructure.set(*this, JSStaticScopeObject::createStructure(*this, 0, jsNull()));
strictEvalActivationStructure.set(*this, StrictEvalActivation::createStructure(*this, 0, jsNull()));
stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
scopeChainNodeStructure.set(*this, ScopeChainNode::createStructure(*this, 0, jsNull()));
executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);
#if ENABLE(JIT)
jitStubs = adoptPtr(new JITThunks(this));
#endif
interpreter->initialize(&llintData, this->canUseJIT());
initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.
heap.notifyIsSafeToCollect();
llintData.performAssertions(*this);
}
VM::VM(VMType vmType, HeapType heapType)
: m_apiLock(adoptRef(new JSLock(this)))
#if ENABLE(ASSEMBLER)
, executableAllocator(*this)
#endif
, heap(this, heapType)
, vmType(vmType)
, clientData(0)
, topCallFrame(CallFrame::noCaller()->removeHostCallFrameFlag())
, arrayConstructorTable(adoptPtr(new HashTable(JSC::arrayConstructorTable)))
, arrayPrototypeTable(adoptPtr(new HashTable(JSC::arrayPrototypeTable)))
, booleanPrototypeTable(adoptPtr(new HashTable(JSC::booleanPrototypeTable)))
, dataViewTable(adoptPtr(new HashTable(JSC::dataViewTable)))
, dateTable(adoptPtr(new HashTable(JSC::dateTable)))
, dateConstructorTable(adoptPtr(new HashTable(JSC::dateConstructorTable)))
, errorPrototypeTable(adoptPtr(new HashTable(JSC::errorPrototypeTable)))
, globalObjectTable(adoptPtr(new HashTable(JSC::globalObjectTable)))
, jsonTable(adoptPtr(new HashTable(JSC::jsonTable)))
, numberConstructorTable(adoptPtr(new HashTable(JSC::numberConstructorTable)))
, numberPrototypeTable(adoptPtr(new HashTable(JSC::numberPrototypeTable)))
, objectConstructorTable(adoptPtr(new HashTable(JSC::objectConstructorTable)))
, privateNamePrototypeTable(adoptPtr(new HashTable(JSC::privateNamePrototypeTable)))
, regExpTable(adoptPtr(new HashTable(JSC::regExpTable)))
, regExpConstructorTable(adoptPtr(new HashTable(JSC::regExpConstructorTable)))
, regExpPrototypeTable(adoptPtr(new HashTable(JSC::regExpPrototypeTable)))
, stringConstructorTable(adoptPtr(new HashTable(JSC::stringConstructorTable)))
#if ENABLE(PROMISES)
, promisePrototypeTable(adoptPtr(new HashTable(JSC::promisePrototypeTable)))
, promiseConstructorTable(adoptPtr(new HashTable(JSC::promiseConstructorTable)))
, promiseResolverPrototypeTable(adoptPtr(new HashTable(JSC::promiseResolverPrototypeTable)))
#endif
, identifierTable(vmType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
, propertyNames(new CommonIdentifiers(this))
, emptyList(new MarkedArgumentBuffer)
, parserArena(adoptPtr(new ParserArena))
, keywords(adoptPtr(new Keywords(this)))
, interpreter(0)
, jsArrayClassInfo(JSArray::info())
, jsFinalObjectClassInfo(JSFinalObject::info())
#if ENABLE(DFG_JIT)
, sizeOfLastScratchBuffer(0)
#endif
, dynamicGlobalObject(0)
, m_enabledProfiler(0)
, m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
, m_rtTraceList(new RTTraceList())
#endif
, exclusiveThread(0)
, m_newStringsSinceLastHashCons(0)
#if ENABLE(ASSEMBLER)
, m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(JIT)
, m_canUseJIT(m_canUseAssembler && Options::useJIT())
#endif
#if ENABLE(YARR_JIT)
, m_canUseRegExpJIT(m_canUseAssembler && Options::useRegExpJIT())
#endif
#if ENABLE(GC_VALIDATION)
, m_initializingObjectClass(0)
#endif
, m_inDefineOwnProperty(false)
, m_codeCache(CodeCache::create())
{
interpreter = new Interpreter(*this);
// Need to be careful to keep everything consistent here
JSLockHolder lock(this);
IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
structureStructure.set(*this, Structure::createStructure(*this));
structureRareDataStructure.set(*this, StructureRareData::createStructure(*this, 0, jsNull()));
debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
JSScopeStructure.set(*this, JSScope::createStructure(*this, 0, jsNull()));
executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
sharedSymbolTableStructure.set(*this, SharedSymbolTable::createStructure(*this, 0, jsNull()));
structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
sparseArrayValueMapStructure.set(*this, SparseArrayValueMap::createStructure(*this, 0, jsNull()));
withScopeStructure.set(*this, JSWithScope::createStructure(*this, 0, jsNull()));
unlinkedFunctionExecutableStructure.set(*this, UnlinkedFunctionExecutable::createStructure(*this, 0, jsNull()));
unlinkedProgramCodeBlockStructure.set(*this, UnlinkedProgramCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedEvalCodeBlockStructure.set(*this, UnlinkedEvalCodeBlock::createStructure(*this, 0, jsNull()));
unlinkedFunctionCodeBlockStructure.set(*this, UnlinkedFunctionCodeBlock::createStructure(*this, 0, jsNull()));
propertyTableStructure.set(*this, PropertyTable::createStructure(*this, 0, jsNull()));
smallStrings.initializeCommonStrings(*this);
wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);
#if ENABLE(JIT)
jitStubs = adoptPtr(new JITThunks());
performPlatformSpecificJITAssertions(this);
#endif
interpreter->initialize(this->canUseJIT());
#if ENABLE(JIT)
initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.
#endif
heap.notifyIsSafeToCollect();
LLInt::Data::performAssertions(*this);
if (Options::enableProfiler()) {
m_perBytecodeProfiler = adoptPtr(new Profiler::Database(*this));
StringPrintStream pathOut;
#if !OS(WINCE)
const char* profilerPath = getenv("JSC_PROFILER_PATH");
if (profilerPath)
pathOut.print(profilerPath, "/");
#endif
pathOut.print("JSCProfile-", getCurrentProcessID(), "-", m_perBytecodeProfiler->databaseID(), ".json");
m_perBytecodeProfiler->registerToSaveAtExit(pathOut.toCString().data());
}
#if ENABLE(DFG_JIT)
if (canUseJIT())
dfgState = adoptPtr(new DFG::LongLivedState());
#endif
// Initialize this last, as a free way of asserting that VM initialization itself
// won't use this.
m_typedArrayController = adoptRef(new SimpleTypedArrayController());
}