blob: 3d7169600b9d85594763f751524773d9790ebf2a [file] [log] [blame]
/*
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) 2007-2009, 2014-2016 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#pragma once
#include "ArrayAllocationProfile.h"
#include "ArrayBufferSharingMode.h"
#include "InternalFunction.h"
#include "JSArray.h"
#include "JSArrayBufferPrototype.h"
#include "JSClassRef.h"
#include "JSGlobalLexicalEnvironment.h"
#include "JSProxy.h"
#include "JSSegmentedVariableObject.h"
#include "JSWeakObjectMapRefInternal.h"
#include "LazyProperty.h"
#include "LazyClassStructure.h"
#include "NumberPrototype.h"
#include "RuntimeFlags.h"
#include "SpecialPointer.h"
#include "StringPrototype.h"
#include "SymbolPrototype.h"
#include "TemplateRegistry.h"
#include "VM.h"
#include "Watchpoint.h"
#include <JavaScriptCore/JSBase.h>
#include <array>
#include <wtf/HashSet.h>
struct OpaqueJSClass;
struct OpaqueJSClassContextData;
namespace Inspector {
class JSGlobalObjectInspectorController;
}
namespace JSC {
class ArrayConstructor;
class ArrayPrototype;
class ArrayIteratorAdaptiveWatchpoint;
class AsyncFunctionPrototype;
class BooleanPrototype;
class ConsoleClient;
class Debugger;
class ErrorConstructor;
class ErrorPrototype;
class EvalCodeBlock;
class EvalExecutable;
class FunctionConstructor;
class FunctionPrototype;
class GeneratorPrototype;
class GeneratorFunctionPrototype;
class GetterSetter;
class GlobalCodeBlock;
class IndirectEvalExecutable;
class InputCursor;
class JSArrayBuffer;
class JSArrayBufferConstructor;
class JSArrayBufferPrototype;
class JSGlobalObjectDebuggable;
class JSInternalPromise;
class JSModuleLoader;
class JSPromise;
class JSPromiseConstructor;
class JSPromisePrototype;
class JSSharedArrayBuffer;
class JSSharedArrayBufferConstructor;
class JSSharedArrayBufferPrototype;
class JSTypedArrayViewConstructor;
class JSTypedArrayViewPrototype;
class DirectEvalExecutable;
class LLIntOffsetsExtractor;
class Microtask;
class ModuleLoaderPrototype;
class ModuleProgramExecutable;
class NativeErrorConstructor;
class NullGetterFunction;
class NullSetterFunction;
class ObjectConstructor;
class ProgramCodeBlock;
class ProgramExecutable;
class RegExpConstructor;
class RegExpPrototype;
class SourceCode;
class UnlinkedModuleProgramCodeBlock;
class VariableEnvironment;
struct ActivationStackNode;
struct HashTable;
#define DEFINE_STANDARD_BUILTIN(macro, upperName, lowerName) macro(upperName, lowerName, lowerName, JS ## upperName, upperName, object)
#define FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(macro) \
macro(String, string, stringObject, StringObject, String, object) \
macro(Symbol, symbol, symbolObject, SymbolObject, Symbol, object) \
macro(Number, number, numberObject, NumberObject, Number, object) \
macro(Error, error, error, ErrorInstance, Error, object) \
macro(Map, map, map, JSMap, Map, object) \
macro(JSPromise, promise, promise, JSPromise, Promise, object)
#define FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(macro) \
DEFINE_STANDARD_BUILTIN(macro, MapIterator, mapIterator) \
DEFINE_STANDARD_BUILTIN(macro, SetIterator, setIterator) \
DEFINE_STANDARD_BUILTIN(macro, StringIterator, stringIterator) \
#define FOR_EACH_BUILTIN_ITERATOR_TYPE(macro) \
DEFINE_STANDARD_BUILTIN(macro, Iterator, iterator) \
FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(macro) \
#define FOR_EACH_SIMPLE_BUILTIN_TYPE(macro) \
FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(macro) \
macro(JSInternalPromise, internalPromise, internalPromise, JSInternalPromise, InternalPromise, object) \
#define FOR_EACH_LAZY_BUILTIN_TYPE(macro) \
macro(Set, set, set, JSSet, Set, object) \
macro(Date, date, date, DateInstance, Date, object) \
macro(Boolean, boolean, booleanObject, BooleanObject, Boolean, object) \
DEFINE_STANDARD_BUILTIN(macro, WeakMap, weakMap) \
DEFINE_STANDARD_BUILTIN(macro, WeakSet, weakSet) \
#if ENABLE(WEBASSEMBLY)
#define FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(macro) \
macro(WebAssemblyCompileError, webAssemblyCompileError, WebAssemblyCompileError, WebAssemblyCompileError, CompileError, error) \
macro(WebAssemblyInstance, webAssemblyInstance, WebAssemblyInstance, WebAssemblyInstance, Instance, object) \
macro(WebAssemblyLinkError, webAssemblyLinkError, WebAssemblyLinkError, WebAssemblyLinkError, LinkError, error) \
macro(WebAssemblyMemory, webAssemblyMemory, WebAssemblyMemory, WebAssemblyMemory, Memory, object) \
macro(WebAssemblyModule, webAssemblyModule, WebAssemblyModule, WebAssemblyModule, Module, object) \
macro(WebAssemblyRuntimeError, webAssemblyRuntimeError, WebAssemblyRuntimeError, WebAssemblyRuntimeError, RuntimeError, error) \
macro(WebAssemblyTable, webAssemblyTable, WebAssemblyTable, WebAssemblyTable, Table, object)
#else
#define FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(macro)
#endif // ENABLE(WEBASSEMBLY)
#define DECLARE_SIMPLE_BUILTIN_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
class JS ## capitalName; \
class capitalName ## Prototype; \
class capitalName ## Constructor;
class IteratorPrototype;
FOR_EACH_SIMPLE_BUILTIN_TYPE(DECLARE_SIMPLE_BUILTIN_TYPE)
FOR_EACH_LAZY_BUILTIN_TYPE(DECLARE_SIMPLE_BUILTIN_TYPE)
FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(DECLARE_SIMPLE_BUILTIN_TYPE)
FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(DECLARE_SIMPLE_BUILTIN_TYPE)
#undef DECLARE_SIMPLE_BUILTIN_TYPE
class JSInternalPromise;
class InternalPromisePrototype;
class InternalPromiseConstructor;
typedef Vector<ExecState*, 16> ExecStateStack;
struct GlobalObjectMethodTable {
typedef bool (*SupportsRichSourceInfoFunctionPtr)(const JSGlobalObject*);
SupportsRichSourceInfoFunctionPtr supportsRichSourceInfo;
typedef bool (*ShouldInterruptScriptFunctionPtr)(const JSGlobalObject*);
ShouldInterruptScriptFunctionPtr shouldInterruptScript;
typedef RuntimeFlags (*JavaScriptRuntimeFlagsFunctionPtr)(const JSGlobalObject*);
JavaScriptRuntimeFlagsFunctionPtr javaScriptRuntimeFlags;
typedef void (*QueueTaskToEventLoopFunctionPtr)(const JSGlobalObject*, Ref<Microtask>&&);
QueueTaskToEventLoopFunctionPtr queueTaskToEventLoop;
typedef bool (*ShouldInterruptScriptBeforeTimeoutPtr)(const JSGlobalObject*);
ShouldInterruptScriptBeforeTimeoutPtr shouldInterruptScriptBeforeTimeout;
typedef JSInternalPromise* (*ModuleLoaderImportModulePtr)(JSGlobalObject*, ExecState*, JSModuleLoader*, JSString*, const SourceOrigin&);
ModuleLoaderImportModulePtr moduleLoaderImportModule;
typedef JSInternalPromise* (*ModuleLoaderResolvePtr)(JSGlobalObject*, ExecState*, JSModuleLoader*, JSValue, JSValue, JSValue);
ModuleLoaderResolvePtr moduleLoaderResolve;
typedef JSInternalPromise* (*ModuleLoaderFetchPtr)(JSGlobalObject*, ExecState*, JSModuleLoader*, JSValue, JSValue);
ModuleLoaderFetchPtr moduleLoaderFetch;
typedef JSInternalPromise* (*ModuleLoaderInstantiatePtr)(JSGlobalObject*, ExecState*, JSModuleLoader*, JSValue, JSValue, JSValue);
ModuleLoaderInstantiatePtr moduleLoaderInstantiate;
typedef JSValue (*ModuleLoaderEvaluatePtr)(JSGlobalObject*, ExecState*, JSModuleLoader*, JSValue, JSValue, JSValue);
ModuleLoaderEvaluatePtr moduleLoaderEvaluate;
typedef String (*DefaultLanguageFunctionPtr)();
DefaultLanguageFunctionPtr defaultLanguage;
};
class JSGlobalObject : public JSSegmentedVariableObject {
private:
typedef HashSet<RefPtr<OpaqueJSWeakObjectMap>> WeakMapSet;
typedef HashMap<OpaqueJSClass*, std::unique_ptr<OpaqueJSClassContextData>> OpaqueJSClassDataMap;
struct JSGlobalObjectRareData {
WTF_MAKE_FAST_ALLOCATED;
public:
JSGlobalObjectRareData()
: profileGroup(0)
{
}
WeakMapSet weakMaps;
unsigned profileGroup;
OpaqueJSClassDataMap opaqueJSClassData;
};
// Our hashtable code-generator tries to access these properties, so we make them public.
// However, we'd like it better if they could be protected.
public:
template<typename T> using Initializer = typename LazyProperty<JSGlobalObject, T>::Initializer;
Register m_globalCallFrame[CallFrame::headerSizeInRegisters];
WriteBarrier<JSObject> m_globalThis;
WriteBarrier<JSGlobalLexicalEnvironment> m_globalLexicalEnvironment;
WriteBarrier<JSScope> m_globalScopeExtension;
WriteBarrier<JSObject> m_globalCallee;
WriteBarrier<RegExpConstructor> m_regExpConstructor;
WriteBarrier<ErrorConstructor> m_errorConstructor;
WriteBarrier<Structure> m_nativeErrorPrototypeStructure;
WriteBarrier<Structure> m_nativeErrorStructure;
LazyProperty<JSGlobalObject, NativeErrorConstructor> m_evalErrorConstructor;
WriteBarrier<NativeErrorConstructor> m_rangeErrorConstructor;
LazyProperty<JSGlobalObject, NativeErrorConstructor> m_referenceErrorConstructor;
LazyProperty<JSGlobalObject, NativeErrorConstructor> m_syntaxErrorConstructor;
WriteBarrier<NativeErrorConstructor> m_typeErrorConstructor;
LazyProperty<JSGlobalObject, NativeErrorConstructor> m_URIErrorConstructor;
WriteBarrier<ObjectConstructor> m_objectConstructor;
WriteBarrier<ArrayConstructor> m_arrayConstructor;
WriteBarrier<JSPromiseConstructor> m_promiseConstructor;
WriteBarrier<JSInternalPromiseConstructor> m_internalPromiseConstructor;
WriteBarrier<NullGetterFunction> m_nullGetterFunction;
WriteBarrier<NullSetterFunction> m_nullSetterFunction;
WriteBarrier<JSFunction> m_parseIntFunction;
WriteBarrier<JSFunction> m_evalFunction;
WriteBarrier<JSFunction> m_callFunction;
WriteBarrier<JSFunction> m_applyFunction;
WriteBarrier<JSFunction> m_throwTypeErrorFunction;
LazyProperty<JSGlobalObject, JSFunction> m_arrayProtoToStringFunction;
LazyProperty<JSGlobalObject, JSFunction> m_arrayProtoValuesFunction;
LazyProperty<JSGlobalObject, JSFunction> m_initializePromiseFunction;
LazyProperty<JSGlobalObject, JSFunction> m_iteratorProtocolFunction;
WriteBarrier<JSFunction> m_objectProtoValueOfFunction;
WriteBarrier<JSFunction> m_newPromiseCapabilityFunction;
WriteBarrier<JSFunction> m_functionProtoHasInstanceSymbolFunction;
LazyProperty<JSGlobalObject, GetterSetter> m_throwTypeErrorGetterSetter;
WriteBarrier<JSObject> m_regExpProtoExec;
WriteBarrier<JSObject> m_regExpProtoSymbolReplace;
WriteBarrier<JSObject> m_regExpProtoGlobalGetter;
WriteBarrier<JSObject> m_regExpProtoUnicodeGetter;
WriteBarrier<GetterSetter> m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter;
WriteBarrier<JSModuleLoader> m_moduleLoader;
WriteBarrier<ObjectPrototype> m_objectPrototype;
WriteBarrier<FunctionPrototype> m_functionPrototype;
WriteBarrier<ArrayPrototype> m_arrayPrototype;
WriteBarrier<RegExpPrototype> m_regExpPrototype;
WriteBarrier<IteratorPrototype> m_iteratorPrototype;
WriteBarrier<GeneratorFunctionPrototype> m_generatorFunctionPrototype;
WriteBarrier<GeneratorPrototype> m_generatorPrototype;
WriteBarrier<ModuleLoaderPrototype> m_moduleLoaderPrototype;
LazyProperty<JSGlobalObject, Structure> m_debuggerScopeStructure;
LazyProperty<JSGlobalObject, Structure> m_withScopeStructure;
WriteBarrier<Structure> m_strictEvalActivationStructure;
WriteBarrier<Structure> m_lexicalEnvironmentStructure;
LazyProperty<JSGlobalObject, Structure> m_moduleEnvironmentStructure;
WriteBarrier<Structure> m_directArgumentsStructure;
WriteBarrier<Structure> m_scopedArgumentsStructure;
WriteBarrier<Structure> m_clonedArgumentsStructure;
WriteBarrier<Structure> m_objectStructureForObjectConstructor;
// Lists the actual structures used for having these particular indexing shapes.
WriteBarrier<Structure> m_originalArrayStructureForIndexingShape[NumberOfIndexingShapes];
// Lists the structures we should use during allocation for these particular indexing shapes.
// These structures will differ from the originals list above when we are having a bad time.
WriteBarrier<Structure> m_arrayStructureForIndexingShapeDuringAllocation[NumberOfIndexingShapes];
LazyProperty<JSGlobalObject, Structure> m_callbackConstructorStructure;
LazyProperty<JSGlobalObject, Structure> m_callbackFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_callbackObjectStructure;
WriteBarrier<Structure> m_propertyNameIteratorStructure;
#if JSC_OBJC_API_ENABLED
LazyProperty<JSGlobalObject, Structure> m_objcCallbackFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_objcWrapperObjectStructure;
#endif
LazyProperty<JSGlobalObject, Structure> m_nullPrototypeObjectStructure;
WriteBarrier<Structure> m_calleeStructure;
WriteBarrier<Structure> m_functionStructure;
LazyProperty<JSGlobalObject, Structure> m_boundFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_customGetterSetterFunctionStructure;
WriteBarrier<Structure> m_getterSetterStructure;
LazyProperty<JSGlobalObject, Structure> m_nativeStdFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_namedFunctionStructure;
PropertyOffset m_functionNameOffset;
WriteBarrier<Structure> m_privateNameStructure;
WriteBarrier<Structure> m_regExpStructure;
WriteBarrier<AsyncFunctionPrototype> m_asyncFunctionPrototype;
WriteBarrier<Structure> m_asyncFunctionStructure;
WriteBarrier<Structure> m_generatorFunctionStructure;
WriteBarrier<Structure> m_dollarVMStructure;
WriteBarrier<Structure> m_iteratorResultObjectStructure;
WriteBarrier<Structure> m_regExpMatchesArrayStructure;
WriteBarrier<Structure> m_moduleRecordStructure;
WriteBarrier<Structure> m_moduleNamespaceObjectStructure;
WriteBarrier<Structure> m_proxyObjectStructure;
WriteBarrier<Structure> m_callableProxyObjectStructure;
WriteBarrier<Structure> m_proxyRevokeStructure;
WriteBarrier<Structure> m_moduleLoaderStructure;
WriteBarrier<JSArrayBufferPrototype> m_arrayBufferPrototype;
WriteBarrier<Structure> m_arrayBufferStructure;
WriteBarrier<JSArrayBufferPrototype> m_sharedArrayBufferPrototype;
WriteBarrier<Structure> m_sharedArrayBufferStructure;
#define DEFINE_STORAGE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
WriteBarrier<capitalName ## Prototype> m_ ## lowerName ## Prototype; \
WriteBarrier<Structure> m_ ## properName ## Structure;
FOR_EACH_SIMPLE_BUILTIN_TYPE(DEFINE_STORAGE_FOR_SIMPLE_TYPE)
#if ENABLE(WEBASSEMBLY)
WriteBarrier<Structure> m_webAssemblyStructure;
WriteBarrier<Structure> m_webAssemblyModuleRecordStructure;
WriteBarrier<Structure> m_webAssemblyFunctionStructure;
WriteBarrier<Structure> m_webAssemblyWrapperFunctionStructure;
FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(DEFINE_STORAGE_FOR_SIMPLE_TYPE)
#endif // ENABLE(WEBASSEMBLY)
#undef DEFINE_STORAGE_FOR_SIMPLE_TYPE
#define DEFINE_STORAGE_FOR_ITERATOR_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
LazyProperty<JSGlobalObject, Structure> m_ ## properName ## Structure;
FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(DEFINE_STORAGE_FOR_ITERATOR_TYPE)
#undef DEFINE_STORAGE_FOR_ITERATOR_TYPE
#define DEFINE_STORAGE_FOR_LAZY_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
LazyClassStructure m_ ## properName ## Structure;
FOR_EACH_LAZY_BUILTIN_TYPE(DEFINE_STORAGE_FOR_LAZY_TYPE)
#undef DEFINE_STORAGE_FOR_LAZY_TYPE
WriteBarrier<GetterSetter> m_speciesGetterSetter;
LazyProperty<JSGlobalObject, JSTypedArrayViewPrototype> m_typedArrayProto;
LazyProperty<JSGlobalObject, JSTypedArrayViewConstructor> m_typedArraySuperConstructor;
#define DECLARE_TYPED_ARRAY_TYPE_STRUCTURE(name) LazyClassStructure m_typedArray ## name;
FOR_EACH_TYPED_ARRAY_TYPE(DECLARE_TYPED_ARRAY_TYPE_STRUCTURE)
#undef DECLARE_TYPED_ARRAY_TYPE_STRUCTURE
JSCell* m_specialPointers[Special::TableSize]; // Special pointers used by the LLInt and JIT.
JSCell* m_linkTimeConstants[LinkTimeConstantCount];
String m_name;
Debugger* m_debugger;
VM& m_vm;
#if ENABLE(WEB_REPLAY)
Ref<InputCursor> m_inputCursor;
#endif
#if ENABLE(REMOTE_INSPECTOR)
std::unique_ptr<Inspector::JSGlobalObjectInspectorController> m_inspectorController;
std::unique_ptr<JSGlobalObjectDebuggable> m_inspectorDebuggable;
#endif
#if ENABLE(INTL)
HashSet<String> m_intlCollatorAvailableLocales;
HashSet<String> m_intlDateTimeFormatAvailableLocales;
HashSet<String> m_intlNumberFormatAvailableLocales;
#endif // ENABLE(INTL)
RefPtr<WatchpointSet> m_masqueradesAsUndefinedWatchpoint;
RefPtr<WatchpointSet> m_havingABadTimeWatchpoint;
RefPtr<WatchpointSet> m_varInjectionWatchpoint;
std::unique_ptr<JSGlobalObjectRareData> m_rareData;
WeakRandom m_weakRandom;
InlineWatchpointSet& arrayIteratorProtocolWatchpoint() { return m_arrayIteratorProtocolWatchpoint; }
InlineWatchpointSet& arraySpeciesWatchpoint() { return m_arraySpeciesWatchpoint; }
// If this hasn't been invalidated, it means the array iterator protocol
// is not observable to user code yet.
InlineWatchpointSet m_arrayIteratorProtocolWatchpoint;
InlineWatchpointSet m_arraySpeciesWatchpoint;
std::unique_ptr<ArrayIteratorAdaptiveWatchpoint> m_arrayPrototypeSymbolIteratorWatchpoint;
std::unique_ptr<ArrayIteratorAdaptiveWatchpoint> m_arrayIteratorPrototypeNext;
bool isArrayIteratorProtocolFastAndNonObservable();
TemplateRegistry m_templateRegistry;
bool m_evalEnabled;
String m_evalDisabledErrorMessage;
RuntimeFlags m_runtimeFlags;
ConsoleClient* m_consoleClient;
static JS_EXPORTDATA const GlobalObjectMethodTable s_globalObjectMethodTable;
const GlobalObjectMethodTable* m_globalObjectMethodTable;
void createRareDataIfNeeded()
{
if (m_rareData)
return;
m_rareData = std::make_unique<JSGlobalObjectRareData>();
}
public:
typedef JSSegmentedVariableObject Base;
static const unsigned StructureFlags = Base::StructureFlags | HasStaticPropertyTable | OverridesGetOwnPropertySlot | OverridesGetPropertyNames | OverridesToThis;
JS_EXPORT_PRIVATE static JSGlobalObject* create(VM&, Structure*);
DECLARE_EXPORT_INFO;
bool hasDebugger() const;
bool hasInteractiveDebugger() const;
const RuntimeFlags& runtimeFlags() const { return m_runtimeFlags; }
protected:
JS_EXPORT_PRIVATE explicit JSGlobalObject(VM&, Structure*, const GlobalObjectMethodTable* = 0);
JS_EXPORT_PRIVATE void finishCreation(VM&);
JS_EXPORT_PRIVATE void finishCreation(VM&, JSObject*);
void addGlobalVar(const Identifier&);
public:
JS_EXPORT_PRIVATE ~JSGlobalObject();
JS_EXPORT_PRIVATE static void destroy(JSCell*);
JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
JS_EXPORT_PRIVATE static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
JS_EXPORT_PRIVATE static bool put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
JS_EXPORT_PRIVATE static void defineGetter(JSObject*, ExecState*, PropertyName, JSObject* getterFunc, unsigned attributes);
JS_EXPORT_PRIVATE static void defineSetter(JSObject*, ExecState*, PropertyName, JSObject* setterFunc, unsigned attributes);
JS_EXPORT_PRIVATE static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
void addVar(ExecState* exec, const Identifier& propertyName)
{
if (!hasProperty(exec, propertyName))
addGlobalVar(propertyName);
}
void addFunction(ExecState*, const Identifier&);
JSScope* globalScope() { return m_globalLexicalEnvironment.get(); }
JSGlobalLexicalEnvironment* globalLexicalEnvironment() { return m_globalLexicalEnvironment.get(); }
JSScope* globalScopeExtension() { return m_globalScopeExtension.get(); }
void setGlobalScopeExtension(JSScope*);
void clearGlobalScopeExtension();
// The following accessors return pristine values, even if a script
// replaces the global object's associated property.
GetterSetter* speciesGetterSetter() const { return m_speciesGetterSetter.get(); }
RegExpConstructor* regExpConstructor() const { return m_regExpConstructor.get(); }
ErrorConstructor* errorConstructor() const { return m_errorConstructor.get(); }
ArrayConstructor* arrayConstructor() const { return m_arrayConstructor.get(); }
ObjectConstructor* objectConstructor() const { return m_objectConstructor.get(); }
JSPromiseConstructor* promiseConstructor() const { return m_promiseConstructor.get(); }
JSInternalPromiseConstructor* internalPromiseConstructor() const { return m_internalPromiseConstructor.get(); }
NativeErrorConstructor* evalErrorConstructor() const { return m_evalErrorConstructor.get(this); }
NativeErrorConstructor* rangeErrorConstructor() const { return m_rangeErrorConstructor.get(); }
NativeErrorConstructor* referenceErrorConstructor() const { return m_referenceErrorConstructor.get(this); }
NativeErrorConstructor* syntaxErrorConstructor() const { return m_syntaxErrorConstructor.get(this); }
NativeErrorConstructor* typeErrorConstructor() const { return m_typeErrorConstructor.get(); }
NativeErrorConstructor* URIErrorConstructor() const { return m_URIErrorConstructor.get(this); }
NullGetterFunction* nullGetterFunction() const { return m_nullGetterFunction.get(); }
NullSetterFunction* nullSetterFunction() const { return m_nullSetterFunction.get(); }
JSFunction* parseIntFunction() const { return m_parseIntFunction.get(); }
JSFunction* evalFunction() const { return m_evalFunction.get(); }
JSFunction* callFunction() const { return m_callFunction.get(); }
JSFunction* applyFunction() const { return m_applyFunction.get(); }
JSFunction* throwTypeErrorFunction() const { return m_throwTypeErrorFunction.get(); }
JSFunction* arrayProtoToStringFunction() const { return m_arrayProtoToStringFunction.get(this); }
JSFunction* arrayProtoValuesFunction() const { return m_arrayProtoValuesFunction.get(this); }
JSFunction* initializePromiseFunction() const { return m_initializePromiseFunction.get(this); }
JSFunction* iteratorProtocolFunction() const { return m_iteratorProtocolFunction.get(this); }
JSFunction* objectProtoValueOfFunction() const { return m_objectProtoValueOfFunction.get(); }
JSFunction* newPromiseCapabilityFunction() const { return m_newPromiseCapabilityFunction.get(); }
JSFunction* functionProtoHasInstanceSymbolFunction() const { return m_functionProtoHasInstanceSymbolFunction.get(); }
JSObject* regExpProtoExecFunction() const { return m_regExpProtoExec.get(); }
JSObject* regExpProtoSymbolReplaceFunction() const { return m_regExpProtoSymbolReplace.get(); }
JSObject* regExpProtoGlobalGetter() const { return m_regExpProtoGlobalGetter.get(); }
JSObject* regExpProtoUnicodeGetter() const { return m_regExpProtoUnicodeGetter.get(); }
GetterSetter* throwTypeErrorArgumentsCalleeAndCallerGetterSetter()
{
return m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter.get();
}
JSModuleLoader* moduleLoader() const { return m_moduleLoader.get(); }
ObjectPrototype* objectPrototype() const { return m_objectPrototype.get(); }
FunctionPrototype* functionPrototype() const { return m_functionPrototype.get(); }
ArrayPrototype* arrayPrototype() const { return m_arrayPrototype.get(); }
JSObject* booleanPrototype() const { return m_booleanObjectStructure.prototype(this); }
StringPrototype* stringPrototype() const { return m_stringPrototype.get(); }
SymbolPrototype* symbolPrototype() const { return m_symbolPrototype.get(); }
JSObject* numberPrototype() const { return m_numberPrototype.get(); }
JSObject* datePrototype() const { return m_dateStructure.prototype(this); }
RegExpPrototype* regExpPrototype() const { return m_regExpPrototype.get(); }
ErrorPrototype* errorPrototype() const { return m_errorPrototype.get(); }
IteratorPrototype* iteratorPrototype() const { return m_iteratorPrototype.get(); }
GeneratorFunctionPrototype* generatorFunctionPrototype() const { return m_generatorFunctionPrototype.get(); }
GeneratorPrototype* generatorPrototype() const { return m_generatorPrototype.get(); }
AsyncFunctionPrototype* asyncFunctionPrototype() const { return m_asyncFunctionPrototype.get(); }
Structure* debuggerScopeStructure() const { return m_debuggerScopeStructure.get(this); }
Structure* withScopeStructure() const { return m_withScopeStructure.get(this); }
Structure* strictEvalActivationStructure() const { return m_strictEvalActivationStructure.get(); }
Structure* activationStructure() const { return m_lexicalEnvironmentStructure.get(); }
Structure* moduleEnvironmentStructure() const { return m_moduleEnvironmentStructure.get(this); }
Structure* directArgumentsStructure() const { return m_directArgumentsStructure.get(); }
Structure* scopedArgumentsStructure() const { return m_scopedArgumentsStructure.get(); }
Structure* clonedArgumentsStructure() const { return m_clonedArgumentsStructure.get(); }
Structure* objectStructureForObjectConstructor() const { return m_objectStructureForObjectConstructor.get(); }
Structure* originalArrayStructureForIndexingType(IndexingType indexingType) const
{
ASSERT(indexingType & IsArray);
return m_originalArrayStructureForIndexingShape[(indexingType & IndexingShapeMask) >> IndexingShapeShift].get();
}
Structure* arrayStructureForIndexingTypeDuringAllocation(IndexingType indexingType) const
{
ASSERT(indexingType & IsArray);
return m_arrayStructureForIndexingShapeDuringAllocation[(indexingType & IndexingShapeMask) >> IndexingShapeShift].get();
}
Structure* arrayStructureForIndexingTypeDuringAllocation(ExecState* exec, IndexingType indexingType, JSValue newTarget) const
{
return InternalFunction::createSubclassStructure(exec, newTarget, arrayStructureForIndexingTypeDuringAllocation(indexingType));
}
Structure* arrayStructureForProfileDuringAllocation(ExecState* exec, ArrayAllocationProfile* profile, JSValue newTarget) const
{
return arrayStructureForIndexingTypeDuringAllocation(exec, ArrayAllocationProfile::selectIndexingTypeFor(profile), newTarget);
}
bool isOriginalArrayStructure(Structure* structure)
{
return originalArrayStructureForIndexingType(structure->indexingType() | IsArray) == structure;
}
Structure* booleanObjectStructure() const { return m_booleanObjectStructure.get(this); }
Structure* callbackConstructorStructure() const { return m_callbackConstructorStructure.get(this); }
Structure* callbackFunctionStructure() const { return m_callbackFunctionStructure.get(this); }
Structure* callbackObjectStructure() const { return m_callbackObjectStructure.get(this); }
Structure* propertyNameIteratorStructure() const { return m_propertyNameIteratorStructure.get(); }
#if JSC_OBJC_API_ENABLED
Structure* objcCallbackFunctionStructure() const { return m_objcCallbackFunctionStructure.get(this); }
Structure* objcWrapperObjectStructure() const { return m_objcWrapperObjectStructure.get(this); }
#endif
Structure* dateStructure() const { return m_dateStructure.get(this); }
Structure* nullPrototypeObjectStructure() const { return m_nullPrototypeObjectStructure.get(this); }
Structure* errorStructure() const { return m_errorStructure.get(); }
Structure* calleeStructure() const { return m_calleeStructure.get(); }
Structure* functionStructure() const { return m_functionStructure.get(); }
Structure* boundFunctionStructure() const { return m_boundFunctionStructure.get(this); }
Structure* customGetterSetterFunctionStructure() const { return m_customGetterSetterFunctionStructure.get(this); }
Structure* getterSetterStructure() const { return m_getterSetterStructure.get(); }
Structure* nativeStdFunctionStructure() const { return m_nativeStdFunctionStructure.get(this); }
Structure* namedFunctionStructure() const { return m_namedFunctionStructure.get(this); }
PropertyOffset functionNameOffset() const { return m_functionNameOffset; }
Structure* numberObjectStructure() const { return m_numberObjectStructure.get(); }
Structure* privateNameStructure() const { return m_privateNameStructure.get(); }
Structure* mapStructure() const { return m_mapStructure.get(); }
Structure* regExpStructure() const { return m_regExpStructure.get(); }
Structure* generatorFunctionStructure() const { return m_generatorFunctionStructure.get(); }
Structure* asyncFunctionStructure() const { return m_asyncFunctionStructure.get(); }
Structure* setStructure() const { return m_setStructure.get(this); }
Structure* stringObjectStructure() const { return m_stringObjectStructure.get(); }
Structure* symbolObjectStructure() const { return m_symbolObjectStructure.get(); }
Structure* iteratorResultObjectStructure() const { return m_iteratorResultObjectStructure.get(); }
Structure* regExpMatchesArrayStructure() const { return m_regExpMatchesArrayStructure.get(); }
Structure* moduleRecordStructure() const { return m_moduleRecordStructure.get(); }
Structure* moduleNamespaceObjectStructure() const { return m_moduleNamespaceObjectStructure.get(); }
Structure* proxyObjectStructure() const { return m_proxyObjectStructure.get(); }
Structure* callableProxyObjectStructure() const { return m_callableProxyObjectStructure.get(); }
Structure* proxyRevokeStructure() const { return m_proxyRevokeStructure.get(); }
Structure* moduleLoaderStructure() const { return m_moduleLoaderStructure.get(); }
Structure* restParameterStructure() const { return arrayStructureForIndexingTypeDuringAllocation(ArrayWithContiguous); }
#if ENABLE(WEBASSEMBLY)
Structure* webAssemblyModuleRecordStructure() const { return m_webAssemblyModuleRecordStructure.get(); }
Structure* webAssemblyFunctionStructure() const { return m_webAssemblyFunctionStructure.get(); }
Structure* webAssemblyWrapperFunctionStructure() const { return m_webAssemblyWrapperFunctionStructure.get(); }
#endif // ENABLE(WEBASSEMBLY)
JS_EXPORT_PRIVATE void setRemoteDebuggingEnabled(bool);
JS_EXPORT_PRIVATE bool remoteDebuggingEnabled() const;
#if ENABLE(WEB_REPLAY)
JS_EXPORT_PRIVATE void setInputCursor(Ref<InputCursor>&&);
InputCursor& inputCursor() const { return m_inputCursor.get(); }
#endif
#if ENABLE(REMOTE_INSPECTOR)
Inspector::JSGlobalObjectInspectorController& inspectorController() const { return *m_inspectorController.get(); }
JSGlobalObjectDebuggable& inspectorDebuggable() { return *m_inspectorDebuggable.get(); }
#endif
#if ENABLE(INTL)
const HashSet<String>& intlCollatorAvailableLocales();
const HashSet<String>& intlDateTimeFormatAvailableLocales();
const HashSet<String>& intlNumberFormatAvailableLocales();
#endif // ENABLE(INTL)
void setConsoleClient(ConsoleClient* consoleClient) { m_consoleClient = consoleClient; }
ConsoleClient* consoleClient() const { return m_consoleClient; }
void setName(const String&);
const String& name() const { return m_name; }
JSArrayBufferPrototype* arrayBufferPrototype(ArrayBufferSharingMode sharingMode) const
{
switch (sharingMode) {
case ArrayBufferSharingMode::Default:
return m_arrayBufferPrototype.get();
case ArrayBufferSharingMode::Shared:
return m_sharedArrayBufferPrototype.get();
}
}
Structure* arrayBufferStructure(ArrayBufferSharingMode sharingMode) const
{
switch (sharingMode) {
case ArrayBufferSharingMode::Default:
return m_arrayBufferStructure.get();
case ArrayBufferSharingMode::Shared:
return m_sharedArrayBufferStructure.get();
}
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
#define DEFINE_ACCESSORS_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
Structure* properName ## Structure() { return m_ ## properName ## Structure.get(); }
FOR_EACH_SIMPLE_BUILTIN_TYPE(DEFINE_ACCESSORS_FOR_SIMPLE_TYPE)
FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(DEFINE_ACCESSORS_FOR_SIMPLE_TYPE)
#undef DEFINE_ACCESSORS_FOR_SIMPLE_TYPE
#define DEFINE_ACCESSORS_FOR_ITERATOR_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
Structure* properName ## Structure() { return m_ ## properName ## Structure.get(this); }
FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(DEFINE_ACCESSORS_FOR_ITERATOR_TYPE)
#undef DEFINE_ACCESSORS_FOR_ITERATOR_TYPE
#define DEFINE_ACCESSORS_FOR_LAZY_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
Structure* properName ## Structure() { return m_ ## properName ## Structure.get(this); }
FOR_EACH_LAZY_BUILTIN_TYPE(DEFINE_ACCESSORS_FOR_LAZY_TYPE)
#undef DEFINE_ACCESSORS_FOR_LAZY_TYPE
LazyClassStructure& lazyTypedArrayStructure(TypedArrayType type)
{
switch (type) {
case NotTypedArray:
RELEASE_ASSERT_NOT_REACHED();
return m_typedArrayInt8;
#define TYPED_ARRAY_TYPE_CASE(name) case Type ## name: return m_typedArray ## name;
FOR_EACH_TYPED_ARRAY_TYPE(TYPED_ARRAY_TYPE_CASE)
#undef TYPED_ARRAY_TYPE_CASE
}
RELEASE_ASSERT_NOT_REACHED();
return m_typedArrayInt8;
}
const LazyClassStructure& lazyTypedArrayStructure(TypedArrayType type) const
{
return const_cast<const LazyClassStructure&>(const_cast<JSGlobalObject*>(this)->lazyTypedArrayStructure(type));
}
Structure* typedArrayStructure(TypedArrayType type) const
{
return lazyTypedArrayStructure(type).get(this);
}
Structure* typedArrayStructureConcurrently(TypedArrayType type) const
{
return lazyTypedArrayStructure(type).getConcurrently();
}
bool isOriginalTypedArrayStructure(Structure* structure)
{
TypedArrayType type = structure->classInfo()->typedArrayStorageType;
if (type == NotTypedArray)
return false;
return typedArrayStructureConcurrently(type) == structure;
}
JSObject* typedArrayConstructor(TypedArrayType type) const
{
return lazyTypedArrayStructure(type).constructor(this);
}
JSCell* actualPointerFor(Special::Pointer pointer)
{
ASSERT(pointer < Special::TableSize);
return m_specialPointers[pointer];
}
JSCell* jsCellForLinkTimeConstant(LinkTimeConstant type)
{
unsigned index = static_cast<unsigned>(type);
ASSERT(index < LinkTimeConstantCount);
return m_linkTimeConstants[index];
}
WatchpointSet* masqueradesAsUndefinedWatchpoint() { return m_masqueradesAsUndefinedWatchpoint.get(); }
WatchpointSet* havingABadTimeWatchpoint() { return m_havingABadTimeWatchpoint.get(); }
WatchpointSet* varInjectionWatchpoint() { return m_varInjectionWatchpoint.get(); }
bool isHavingABadTime() const
{
return m_havingABadTimeWatchpoint->hasBeenInvalidated();
}
void haveABadTime(VM&);
bool objectPrototypeIsSane();
bool arrayPrototypeChainIsSane();
bool stringPrototypeChainIsSane();
void setProfileGroup(unsigned value) { createRareDataIfNeeded(); m_rareData->profileGroup = value; }
unsigned profileGroup() const
{
if (!m_rareData)
return 0;
return m_rareData->profileGroup;
}
Debugger* debugger() const { return m_debugger; }
void setDebugger(Debugger* debugger) { m_debugger = debugger; }
const GlobalObjectMethodTable* globalObjectMethodTable() const { return m_globalObjectMethodTable; }
static bool supportsRichSourceInfo(const JSGlobalObject*) { return true; }
JS_EXPORT_PRIVATE ExecState* globalExec();
static bool shouldInterruptScript(const JSGlobalObject*) { return true; }
static bool shouldInterruptScriptBeforeTimeout(const JSGlobalObject*) { return false; }
static RuntimeFlags javaScriptRuntimeFlags(const JSGlobalObject*) { return RuntimeFlags(); }
void queueMicrotask(Ref<Microtask>&&);
bool evalEnabled() const { return m_evalEnabled; }
const String& evalDisabledErrorMessage() const { return m_evalDisabledErrorMessage; }
void setEvalEnabled(bool enabled, const String& errorMessage = String())
{
m_evalEnabled = enabled;
m_evalDisabledErrorMessage = errorMessage;
}
void resetPrototype(VM&, JSValue prototype);
VM& vm() const { return m_vm; }
JSObject* globalThis() const;
static Structure* createStructure(VM& vm, JSValue prototype)
{
Structure* result = Structure::create(vm, 0, prototype, TypeInfo(GlobalObjectType, StructureFlags), info());
result->setTransitionWatchpointIsLikelyToBeFired(true);
return result;
}
void registerWeakMap(OpaqueJSWeakObjectMap* map)
{
createRareDataIfNeeded();
m_rareData->weakMaps.add(map);
}
void unregisterWeakMap(OpaqueJSWeakObjectMap* map)
{
if (m_rareData)
m_rareData->weakMaps.remove(map);
}
OpaqueJSClassDataMap& opaqueJSClassData()
{
createRareDataIfNeeded();
return m_rareData->opaqueJSClassData;
}
TemplateRegistry& templateRegistry() { return m_templateRegistry; }
static ptrdiff_t weakRandomOffset() { return OBJECT_OFFSETOF(JSGlobalObject, m_weakRandom); }
double weakRandomNumber() { return m_weakRandom.get(); }
unsigned weakRandomInteger() { return m_weakRandom.getUint32(); }
WeakRandom& weakRandom() { return m_weakRandom; }
bool needsSiteSpecificQuirks() const { return m_needsSiteSpecificQuirks; }
protected:
struct GlobalPropertyInfo {
GlobalPropertyInfo(const Identifier& i, JSValue v, unsigned a)
: identifier(i)
, value(v)
, attributes(a)
{
}
const Identifier identifier;
JSValue value;
unsigned attributes;
};
JS_EXPORT_PRIVATE void addStaticGlobals(GlobalPropertyInfo*, int count);
JS_EXPORT_PRIVATE static JSC::JSValue toThis(JSC::JSCell*, JSC::ExecState*, ECMAMode);
void setNeedsSiteSpecificQuirks(bool needQuirks) { m_needsSiteSpecificQuirks = needQuirks; }
private:
friend class LLIntOffsetsExtractor;
JS_EXPORT_PRIVATE void setGlobalThis(VM&, JSObject* globalThis);
JS_EXPORT_PRIVATE void init(VM&);
JS_EXPORT_PRIVATE static void clearRareData(JSCell*);
bool m_needsSiteSpecificQuirks { false };
};
JSGlobalObject* asGlobalObject(JSValue);
inline JSGlobalObject* asGlobalObject(JSValue value)
{
ASSERT(asObject(value)->isGlobalObject());
return jsCast<JSGlobalObject*>(asObject(value));
}
inline JSArray* constructEmptyArray(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, unsigned initialLength = 0, JSValue newTarget = JSValue())
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure;
if (initialLength >= MIN_ARRAY_STORAGE_CONSTRUCTION_LENGTH)
structure = globalObject->arrayStructureForIndexingTypeDuringAllocation(exec, ArrayWithArrayStorage, newTarget);
else
structure = globalObject->arrayStructureForProfileDuringAllocation(exec, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, JSArray::create(exec->vm(), structure, initialLength));
}
inline JSArray* constructEmptyArray(ExecState* exec, ArrayAllocationProfile* profile, unsigned initialLength = 0, JSValue newTarget = JSValue())
{
return constructEmptyArray(exec, profile, exec->lexicalGlobalObject(), initialLength, newTarget);
}
inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, const ArgList& values, JSValue newTarget = JSValue())
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure = globalObject->arrayStructureForProfileDuringAllocation(exec, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArray(exec, structure, values));
}
inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, const ArgList& values, JSValue newTarget = JSValue())
{
return constructArray(exec, profile, exec->lexicalGlobalObject(), values, newTarget);
}
inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, const JSValue* values, unsigned length, JSValue newTarget = JSValue())
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure = globalObject->arrayStructureForProfileDuringAllocation(exec, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArray(exec, structure, values, length));
}
inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, const JSValue* values, unsigned length, JSValue newTarget = JSValue())
{
return constructArray(exec, profile, exec->lexicalGlobalObject(), values, length, newTarget);
}
inline JSArray* constructArrayNegativeIndexed(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, const JSValue* values, unsigned length, JSValue newTarget = JSValue())
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure = globalObject->arrayStructureForProfileDuringAllocation(exec, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArrayNegativeIndexed(exec, structure, values, length));
}
inline JSArray* constructArrayNegativeIndexed(ExecState* exec, ArrayAllocationProfile* profile, const JSValue* values, unsigned length, JSValue newTarget = JSValue())
{
return constructArrayNegativeIndexed(exec, profile, exec->lexicalGlobalObject(), values, length, newTarget);
}
inline JSObject* ExecState::globalThisValue() const
{
return lexicalGlobalObject()->globalThis();
}
inline JSObject* JSScope::globalThis()
{
return globalObject()->globalThis();
}
inline JSObject* JSGlobalObject::globalThis() const
{
return m_globalThis.get();
}
} // namespace JSC