darlinghq/darling-JavaScriptCore
1
0
Fork 0
mirror of https://github.com/darlinghq/darling-JavaScriptCore.git synced 2025-02-17 02:18:14 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
darling-JavaScriptCore/runtime/JSGlobalObject.h

1211 lines
58 KiB
C++
Raw Permalink Blame History

/*
* Copyright (C) 2007 Eric Seidel <eric@webkit.org>
* Copyright (C) 2007-2020 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 "BigIntPrototype.h"
#include "BooleanPrototype.h"
#include "ErrorType.h"
#include "ExceptionHelpers.h"
#include "GetVM.h"
#include "InternalFunction.h"
#include "JSArray.h"
#include "JSClassRef.h"
#include "JSGlobalLexicalEnvironment.h"
#include "JSPromise.h"
#include "JSSegmentedVariableObject.h"
#include "JSWeakObjectMapRefInternal.h"
#include "LazyProperty.h"
#include "LazyClassStructure.h"
#include "NumberPrototype.h"
#include "ParserModes.h"
#include "RegExpGlobalData.h"
#include "RuntimeFlags.h"
#include "StringPrototype.h"
#include "SymbolPrototype.h"
#include "VM.h"
#include "Watchpoint.h"
#include <JavaScriptCore/JSBase.h>
#include <array>
#include <wtf/HashSet.h>
#include <wtf/RetainPtr.h>
#include <wtf/WeakPtr.h>
struct OpaqueJSClass;
struct OpaqueJSClassContextData;
OBJC_CLASS JSWrapperMap;
namespace Inspector {
class JSGlobalObjectInspectorController;
}
namespace JSC {
class ArrayConstructor;
class ArrayPrototype;
class ArrayIteratorPrototype;
class AsyncIteratorPrototype;
class AsyncFunctionPrototype;
class AsyncGeneratorPrototype;
class AsyncGeneratorFunctionPrototype;
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 IntlObject;
class IntlCollator;
class JSArrayBuffer;
class JSArrayBufferPrototype;
class JSCallee;
class JSGlobalObjectDebuggable;
class JSInternalPromise;
class JSModuleLoader;
class JSModuleRecord;
class JSPromise;
class JSPromiseConstructor;
class JSPromisePrototype;
class JSSharedArrayBuffer;
class JSSharedArrayBufferPrototype;
class JSTypedArrayViewConstructor;
class JSTypedArrayViewPrototype;
class DirectEvalExecutable;
class LLIntOffsetsExtractor;
class MapIteratorPrototype;
class MapPrototype;
class Microtask;
class ModuleLoader;
class ModuleProgramExecutable;
class NativeErrorConstructorBase;
class NullGetterFunction;
class NullSetterFunction;
class ObjectConstructor;
class ProgramCodeBlock;
class ProgramExecutable;
class RegExpConstructor;
class RegExpPrototype;
class SetIteratorPrototype;
class SetPrototype;
class SourceCode;
class SourceOrigin;
class UnlinkedModuleProgramCodeBlock;
class VariableEnvironment;
struct ActivationStackNode;
struct HashTable;
enum class LinkTimeConstant : int32_t;
#ifdef JSC_GLIB_API_ENABLED
class WrapperMap;
#endif
template<typename Watchpoint> class ObjectPropertyChangeAdaptiveWatchpoint;
constexpr bool typeExposedByDefault = true;
#define DEFINE_STANDARD_BUILTIN(macro, upperName, lowerName) macro(upperName, lowerName, lowerName, JS ## upperName, upperName, object, typeExposedByDefault)
#define FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(macro) \
macro(String, string, stringObject, StringObject, String, object, typeExposedByDefault) \
macro(JSPromise, promise, promise, JSPromise, Promise, object, typeExposedByDefault) \
macro(BigInt, bigInt, bigIntObject, BigIntObject, BigInt, object, typeExposedByDefault) \
macro(WeakObjectRef, weakObjectRef, weakObjectRef, JSWeakObjectRef, WeakRef, object, Options::useWeakRefs()) \
macro(FinalizationRegistry, finalizationRegistry, finalizationRegistry, JSFinalizationRegistry, FinalizationRegistry, object, Options::useWeakRefs()) \
#define FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(macro) \
macro(StringIterator, stringIterator, stringIterator, JSStringIterator, StringIterator, iterator, typeExposedByDefault) \
#define FOR_EACH_SIMPLE_BUILTIN_TYPE(macro) \
FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(macro) \
macro(JSInternalPromise, internalPromise, internalPromise, JSInternalPromise, InternalPromise, object, typeExposedByDefault) \
#define FOR_EACH_LAZY_BUILTIN_TYPE_WITH_DECLARATION(macro) \
macro(Boolean, boolean, booleanObject, BooleanObject, Boolean, object, typeExposedByDefault) \
macro(Date, date, date, DateInstance, Date, object, typeExposedByDefault) \
macro(Error, error, error, ErrorInstance, Error, object, typeExposedByDefault) \
macro(Map, map, map, JSMap, Map, object, typeExposedByDefault) \
macro(Number, number, numberObject, NumberObject, Number, object, typeExposedByDefault) \
macro(Set, set, set, JSSet, Set, object, typeExposedByDefault) \
macro(Symbol, symbol, symbolObject, SymbolObject, Symbol, object, typeExposedByDefault) \
DEFINE_STANDARD_BUILTIN(macro, WeakMap, weakMap) \
DEFINE_STANDARD_BUILTIN(macro, WeakSet, weakSet) \
#define FOR_EACH_LAZY_BUILTIN_TYPE(macro) \
FOR_EACH_LAZY_BUILTIN_TYPE_WITH_DECLARATION(macro) \
macro(JSArrayBuffer, arrayBuffer, arrayBuffer, JSArrayBuffer, ArrayBuffer, object, typeExposedByDefault) \
#if ENABLE(WEBASSEMBLY)
#define FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(macro) \
macro(WebAssemblyCompileError, webAssemblyCompileError, webAssemblyCompileError, JSWebAssemblyCompileError, CompileError, error, typeExposedByDefault) \
macro(WebAssemblyGlobal, webAssemblyGlobal, webAssemblyGlobal, JSWebAssemblyGlobal, Global, object, typeExposedByDefault) \
macro(WebAssemblyInstance, webAssemblyInstance, webAssemblyInstance, JSWebAssemblyInstance, Instance, object, typeExposedByDefault) \
macro(WebAssemblyLinkError, webAssemblyLinkError, webAssemblyLinkError, JSWebAssemblyLinkError, LinkError, error, typeExposedByDefault) \
macro(WebAssemblyMemory, webAssemblyMemory, webAssemblyMemory, JSWebAssemblyMemory, Memory, object, typeExposedByDefault) \
macro(WebAssemblyModule, webAssemblyModule, webAssemblyModule, JSWebAssemblyModule, Module, object, typeExposedByDefault) \
macro(WebAssemblyRuntimeError, webAssemblyRuntimeError, webAssemblyRuntimeError, JSWebAssemblyRuntimeError, RuntimeError, error, typeExposedByDefault) \
macro(WebAssemblyTable, webAssemblyTable, webAssemblyTable, JSWebAssemblyTable, Table, object, typeExposedByDefault)
#else
#define FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(macro)
#endif // ENABLE(WEBASSEMBLY)
#define DECLARE_SIMPLE_BUILTIN_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase, featureFlag) \
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_WITH_DECLARATION(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
enum class JSPromiseRejectionOperation : unsigned {
Reject, // When a promise is rejected without any handlers.
Handle, // When a handler is added to a rejected promise for the first time.
};
enum class ScriptExecutionStatus {
Running,
Suspended,
Stopped,
};
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)(JSGlobalObject&, Ref<Microtask>&&);
QueueTaskToEventLoopFunctionPtr queueTaskToEventLoop;
typedef bool (*ShouldInterruptScriptBeforeTimeoutPtr)(const JSGlobalObject*);
ShouldInterruptScriptBeforeTimeoutPtr shouldInterruptScriptBeforeTimeout;
typedef JSInternalPromise* (*ModuleLoaderImportModulePtr)(JSGlobalObject*, JSModuleLoader*, JSString*, JSValue, const SourceOrigin&);
ModuleLoaderImportModulePtr moduleLoaderImportModule;
typedef Identifier (*ModuleLoaderResolvePtr)(JSGlobalObject*, JSModuleLoader*, JSValue, JSValue, JSValue);
ModuleLoaderResolvePtr moduleLoaderResolve;
typedef JSInternalPromise* (*ModuleLoaderFetchPtr)(JSGlobalObject*, JSModuleLoader*, JSValue, JSValue, JSValue);
ModuleLoaderFetchPtr moduleLoaderFetch;
typedef JSObject* (*ModuleLoaderCreateImportMetaPropertiesPtr)(JSGlobalObject*, JSModuleLoader*, JSValue, JSModuleRecord*, JSValue);
ModuleLoaderCreateImportMetaPropertiesPtr moduleLoaderCreateImportMetaProperties;
typedef JSValue (*ModuleLoaderEvaluatePtr)(JSGlobalObject*, JSModuleLoader*, JSValue, JSValue, JSValue);
ModuleLoaderEvaluatePtr moduleLoaderEvaluate;
typedef void (*PromiseRejectionTrackerPtr)(JSGlobalObject*, JSPromise*, JSPromiseRejectionOperation);
PromiseRejectionTrackerPtr promiseRejectionTracker;
typedef void (*ReportUncaughtExceptionAtEventLoopPtr)(JSGlobalObject*, Exception*);
ReportUncaughtExceptionAtEventLoopPtr reportUncaughtExceptionAtEventLoop;
// For most contexts this is just the global object. For JSDOMWindow, however, this is the JSDocument.
typedef JSObject* (*CurrentScriptExecutionOwnerPtr)(JSGlobalObject*);
CurrentScriptExecutionOwnerPtr currentScriptExecutionOwner;
typedef ScriptExecutionStatus (*ScriptExecutionStatusPtr)(JSGlobalObject*, JSObject* scriptExecutionOwner);
ScriptExecutionStatusPtr scriptExecutionStatus;
typedef String (*DefaultLanguageFunctionPtr)();
DefaultLanguageFunctionPtr defaultLanguage;
typedef void (*CompileStreamingPtr)(JSGlobalObject*, JSPromise*, JSValue);
CompileStreamingPtr compileStreaming;
typedef void (*InstantiateStreamingPtr)(JSGlobalObject*, JSPromise*, JSValue, JSObject*);
InstantiateStreamingPtr instantiateStreaming;
};
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;
};
// m_vm must be a pointer (instead of a reference) because the JSCLLIntOffsetsExtractor
// cannot handle it being a reference.
VM* m_vm;
// 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_deprecatedCallFrameForDebugger[CallFrame::headerSizeInRegisters];
WriteBarrier<JSObject> m_globalThis;
WriteBarrier<JSGlobalLexicalEnvironment> m_globalLexicalEnvironment;
WriteBarrier<JSScope> m_globalScopeExtension;
WriteBarrier<JSCallee> m_globalCallee;
WriteBarrier<JSCallee> m_stackOverflowFrameCallee;
LazyClassStructure m_evalErrorStructure;
LazyClassStructure m_rangeErrorStructure;
LazyClassStructure m_referenceErrorStructure;
LazyClassStructure m_syntaxErrorStructure;
LazyClassStructure m_typeErrorStructure;
LazyClassStructure m_URIErrorStructure;
LazyClassStructure m_aggregateErrorStructure;
WriteBarrier<ObjectConstructor> m_objectConstructor;
WriteBarrier<ArrayConstructor> m_arrayConstructor;
WriteBarrier<RegExpConstructor> m_regExpConstructor;
WriteBarrier<FunctionConstructor> m_functionConstructor;
WriteBarrier<JSPromiseConstructor> m_promiseConstructor;
WriteBarrier<JSInternalPromiseConstructor> m_internalPromiseConstructor;
LazyProperty<JSGlobalObject, IntlCollator> m_defaultCollator;
LazyProperty<JSGlobalObject, Structure> m_collatorStructure;
LazyProperty<JSGlobalObject, Structure> m_displayNamesStructure;
LazyProperty<JSGlobalObject, Structure> m_listFormatStructure;
LazyProperty<JSGlobalObject, Structure> m_localeStructure;
LazyProperty<JSGlobalObject, Structure> m_pluralRulesStructure;
LazyProperty<JSGlobalObject, Structure> m_relativeTimeFormatStructure;
LazyProperty<JSGlobalObject, Structure> m_segmentIteratorStructure;
LazyProperty<JSGlobalObject, Structure> m_segmenterStructure;
LazyProperty<JSGlobalObject, Structure> m_segmentsStructure;
LazyClassStructure m_dateTimeFormatStructure;
LazyClassStructure m_numberFormatStructure;
WriteBarrier<NullGetterFunction> m_nullGetterFunction;
WriteBarrier<NullSetterFunction> m_nullSetterFunction;
WriteBarrier<NullSetterFunction> m_nullSetterStrictFunction;
LazyProperty<JSGlobalObject, JSFunction> m_parseIntFunction;
LazyProperty<JSGlobalObject, JSFunction> m_parseFloatFunction;
LazyProperty<JSGlobalObject, JSFunction> m_objectProtoToStringFunction;
LazyProperty<JSGlobalObject, JSFunction> m_arrayProtoToStringFunction;
LazyProperty<JSGlobalObject, JSFunction> m_arrayProtoValuesFunction;
LazyProperty<JSGlobalObject, JSFunction> m_evalFunction;
LazyProperty<JSGlobalObject, JSFunction> m_iteratorProtocolFunction;
LazyProperty<JSGlobalObject, JSFunction> m_promiseResolveFunction;
LazyProperty<JSGlobalObject, JSFunction> m_numberProtoToStringFunction;
WriteBarrier<JSFunction> m_objectProtoValueOfFunction;
WriteBarrier<JSFunction> m_functionProtoHasInstanceSymbolFunction;
LazyProperty<JSGlobalObject, GetterSetter> m_throwTypeErrorGetterSetter;
WriteBarrier<JSObject> m_regExpProtoSymbolReplace;
WriteBarrier<GetterSetter> m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter;
LazyProperty<JSGlobalObject, JSModuleLoader> m_moduleLoader;
WriteBarrier<ObjectPrototype> m_objectPrototype;
WriteBarrier<FunctionPrototype> m_functionPrototype;
WriteBarrier<ArrayPrototype> m_arrayPrototype;
WriteBarrier<RegExpPrototype> m_regExpPrototype;
WriteBarrier<IteratorPrototype> m_iteratorPrototype;
WriteBarrier<AsyncIteratorPrototype> m_asyncIteratorPrototype;
WriteBarrier<GeneratorFunctionPrototype> m_generatorFunctionPrototype;
WriteBarrier<GeneratorPrototype> m_generatorPrototype;
WriteBarrier<AsyncGeneratorPrototype> m_asyncGeneratorPrototype;
WriteBarrier<ArrayIteratorPrototype> m_arrayIteratorPrototype;
WriteBarrier<MapIteratorPrototype> m_mapIteratorPrototype;
WriteBarrier<SetIteratorPrototype> m_setIteratorPrototype;
LazyProperty<JSGlobalObject, Structure> m_debuggerScopeStructure;
LazyProperty<JSGlobalObject, Structure> m_withScopeStructure;
LazyProperty<JSGlobalObject, 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[NumberOfArrayIndexingModes];
// 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[NumberOfArrayIndexingModes];
LazyProperty<JSGlobalObject, Structure> m_callbackConstructorStructure;
LazyProperty<JSGlobalObject, Structure> m_callbackFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_callbackObjectStructure;
#if JSC_OBJC_API_ENABLED
LazyProperty<JSGlobalObject, Structure> m_objcCallbackFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_objcWrapperObjectStructure;
#endif
#ifdef JSC_GLIB_API_ENABLED
LazyProperty<JSGlobalObject, Structure> m_glibCallbackFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_glibWrapperObjectStructure;
#endif
WriteBarrier<Structure> m_nullPrototypeObjectStructure;
WriteBarrier<Structure> m_calleeStructure;
WriteBarrier<Structure> m_hostFunctionStructure;
struct FunctionStructures {
WriteBarrier<Structure> arrowFunctionStructure;
WriteBarrier<Structure> sloppyFunctionStructure;
WriteBarrier<Structure> strictFunctionStructure;
};
FunctionStructures m_builtinFunctions;
FunctionStructures m_ordinaryFunctions;
LazyProperty<JSGlobalObject, Structure> m_boundFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_customGetterSetterFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_nativeStdFunctionStructure;
PropertyOffset m_functionNameOffset;
WriteBarrier<Structure> m_regExpStructure;
WriteBarrier<AsyncFunctionPrototype> m_asyncFunctionPrototype;
WriteBarrier<AsyncGeneratorFunctionPrototype> m_asyncGeneratorFunctionPrototype;
WriteBarrier<Structure> m_asyncFunctionStructure;
WriteBarrier<Structure> m_asyncGeneratorFunctionStructure;
WriteBarrier<Structure> m_generatorFunctionStructure;
WriteBarrier<Structure> m_generatorStructure;
WriteBarrier<Structure> m_asyncGeneratorStructure;
WriteBarrier<Structure> m_arrayIteratorStructure;
WriteBarrier<Structure> m_mapIteratorStructure;
WriteBarrier<Structure> m_setIteratorStructure;
LazyProperty<JSGlobalObject, Structure> m_iteratorResultObjectStructure;
LazyProperty<JSGlobalObject, Structure> m_dataPropertyDescriptorObjectStructure;
LazyProperty<JSGlobalObject, Structure> m_accessorPropertyDescriptorObjectStructure;
WriteBarrier<Structure> m_regExpMatchesArrayStructure;
LazyProperty<JSGlobalObject, Structure> m_moduleRecordStructure;
LazyProperty<JSGlobalObject, Structure> m_moduleNamespaceObjectStructure;
LazyProperty<JSGlobalObject, Structure> m_proxyObjectStructure;
LazyProperty<JSGlobalObject, Structure> m_callableProxyObjectStructure;
LazyProperty<JSGlobalObject, Structure> m_proxyRevokeStructure;
LazyClassStructure m_sharedArrayBufferStructure;
#define DEFINE_STORAGE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase, featureFlag) \
WriteBarrier<capitalName ## Prototype> m_ ## lowerName ## Prototype; \
WriteBarrier<Structure> m_ ## properName ## Structure;
#define DEFINE_STORAGE_FOR_LAZY_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase, featureFlag) \
LazyClassStructure m_ ## properName ## Structure;
FOR_EACH_SIMPLE_BUILTIN_TYPE(DEFINE_STORAGE_FOR_SIMPLE_TYPE)
FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(DEFINE_STORAGE_FOR_SIMPLE_TYPE)
#if ENABLE(WEBASSEMBLY)
LazyProperty<JSGlobalObject, Structure> m_webAssemblyModuleRecordStructure;
LazyProperty<JSGlobalObject, Structure> m_webAssemblyFunctionStructure;
LazyProperty<JSGlobalObject, Structure> m_jsToWasmICCalleeStructure;
LazyProperty<JSGlobalObject, Structure> m_webAssemblyWrapperFunctionStructure;
FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(DEFINE_STORAGE_FOR_LAZY_TYPE)
#endif // ENABLE(WEBASSEMBLY)
FOR_EACH_LAZY_BUILTIN_TYPE(DEFINE_STORAGE_FOR_LAZY_TYPE)
#undef DEFINE_STORAGE_FOR_SIMPLE_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
Vector<LazyProperty<JSGlobalObject, JSCell>> m_linkTimeConstants;
String m_name;
Strong<JSObject> m_unhandledRejectionCallback;
Debugger* m_debugger;
#if ENABLE(REMOTE_INSPECTOR)
std::unique_ptr<Inspector::JSGlobalObjectInspectorController> m_inspectorController;
std::unique_ptr<JSGlobalObjectDebuggable> m_inspectorDebuggable;
#endif
RefPtr<WatchpointSet> m_masqueradesAsUndefinedWatchpoint;
RefPtr<WatchpointSet> m_havingABadTimeWatchpoint;
RefPtr<WatchpointSet> m_varInjectionWatchpoint;
std::unique_ptr<JSGlobalObjectRareData> m_rareData;
WeakRandom m_weakRandom;
RegExpGlobalData m_regExpGlobalData;
// If this hasn't been invalidated, it means the array iterator protocol
// is not observable to user code yet.
InlineWatchpointSet m_arrayIteratorProtocolWatchpointSet;
InlineWatchpointSet m_mapIteratorProtocolWatchpointSet;
InlineWatchpointSet m_setIteratorProtocolWatchpointSet;
InlineWatchpointSet m_stringIteratorProtocolWatchpointSet;
InlineWatchpointSet m_mapSetWatchpointSet;
InlineWatchpointSet m_setAddWatchpointSet;
InlineWatchpointSet m_arraySpeciesWatchpointSet { ClearWatchpoint };
InlineWatchpointSet m_arrayJoinWatchpointSet;
InlineWatchpointSet m_numberToStringWatchpointSet;
InlineWatchpointSet m_arrayBufferSpeciesWatchpointSet { ClearWatchpoint };
InlineWatchpointSet m_sharedArrayBufferSpeciesWatchpointSet { ClearWatchpoint };
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayConstructorSpeciesWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayPrototypeConstructorWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayPrototypeSymbolIteratorWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayPrototypeJoinWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayIteratorPrototypeNext;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_mapPrototypeSymbolIteratorWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_mapIteratorPrototypeNextWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_setPrototypeSymbolIteratorWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_setIteratorPrototypeNextWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_stringPrototypeSymbolIteratorWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_stringIteratorPrototypeNextWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_mapPrototypeSetWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_setPrototypeAddWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_numberPrototypeToStringWatchpoint;
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayBufferConstructorSpeciesWatchpoints[2];
std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>> m_arrayBufferPrototypeConstructorWatchpoints[2];
public:
JSCallee* stackOverflowFrameCallee() const { return m_stackOverflowFrameCallee.get(); }
InlineWatchpointSet& arrayIteratorProtocolWatchpointSet() { return m_arrayIteratorProtocolWatchpointSet; }
InlineWatchpointSet& mapIteratorProtocolWatchpointSet() { return m_mapIteratorProtocolWatchpointSet; }
InlineWatchpointSet& setIteratorProtocolWatchpointSet() { return m_setIteratorProtocolWatchpointSet; }
InlineWatchpointSet& stringIteratorProtocolWatchpointSet() { return m_stringIteratorProtocolWatchpointSet; }
InlineWatchpointSet& mapSetWatchpointSet() { return m_mapSetWatchpointSet; }
InlineWatchpointSet& setAddWatchpointSet() { return m_setAddWatchpointSet; }
InlineWatchpointSet& arraySpeciesWatchpointSet() { return m_arraySpeciesWatchpointSet; }
InlineWatchpointSet& arrayJoinWatchpointSet() { return m_arrayJoinWatchpointSet; }
InlineWatchpointSet& numberToStringWatchpointSet()
{
RELEASE_ASSERT(Options::useJIT());
return m_numberToStringWatchpointSet;
}
InlineWatchpointSet& arrayBufferSpeciesWatchpointSet(ArrayBufferSharingMode sharingMode)
{
switch (sharingMode) {
case ArrayBufferSharingMode::Default:
return m_arrayBufferSpeciesWatchpointSet;
case ArrayBufferSharingMode::Shared:
return m_sharedArrayBufferSpeciesWatchpointSet;
}
RELEASE_ASSERT_NOT_REACHED();
return m_arrayBufferSpeciesWatchpointSet;
}
bool isArrayPrototypeIteratorProtocolFastAndNonObservable();
bool isMapPrototypeIteratorProtocolFastAndNonObservable();
bool isSetPrototypeIteratorProtocolFastAndNonObservable();
bool isStringPrototypeIteratorProtocolFastAndNonObservable();
bool isMapPrototypeSetFastAndNonObservable();
bool isSetPrototypeAddFastAndNonObservable();
#if ENABLE(DFG_JIT)
using ReferencedGlobalPropertyWatchpointSets = HashMap<RefPtr<UniquedStringImpl>, Ref<WatchpointSet>, IdentifierRepHash>;
ReferencedGlobalPropertyWatchpointSets m_referencedGlobalPropertyWatchpointSets;
ConcurrentJSLock m_referencedGlobalPropertyWatchpointSetsLock;
#endif
bool m_evalEnabled { true };
bool m_webAssemblyEnabled { true };
unsigned m_globalLexicalBindingEpoch { 1 };
String m_evalDisabledErrorMessage;
String m_webAssemblyDisabledErrorMessage;
RuntimeFlags m_runtimeFlags;
WeakPtr<ConsoleClient> m_consoleClient;
Optional<unsigned> m_stackTraceLimit;
#if ASSERT_ENABLED
const JSGlobalObject* m_globalObjectAtDebuggerEntry { nullptr };
#endif
static JS_EXPORT_PRIVATE const GlobalObjectMethodTable s_globalObjectMethodTable;
const GlobalObjectMethodTable* m_globalObjectMethodTable;
void createRareDataIfNeeded()
{
if (m_rareData)
return;
m_rareData = makeUnique<JSGlobalObjectRareData>();
}
public:
using Base = JSSegmentedVariableObject;
static constexpr unsigned StructureFlags = Base::StructureFlags | HasStaticPropertyTable | OverridesGetOwnPropertySlot | IsImmutablePrototypeExoticObject;
static constexpr bool needsDestruction = true;
template<typename CellType, SubspaceAccess mode>
static IsoSubspace* subspaceFor(VM& vm)
{
return vm.globalObjectSpace<mode>();
}
JS_EXPORT_PRIVATE static JSGlobalObject* create(VM&, Structure*);
DECLARE_EXPORT_INFO;
bool hasDebugger() const;
bool hasInteractiveDebugger() const;
const RuntimeFlags& runtimeFlags() const { return m_runtimeFlags; }
#if ENABLE(DFG_JIT)
WatchpointSet* getReferencedPropertyWatchpointSet(UniquedStringImpl*);
WatchpointSet& ensureReferencedPropertyWatchpointSet(UniquedStringImpl*);
#endif
Optional<unsigned> stackTraceLimit() const { return m_stackTraceLimit; }
void setStackTraceLimit(Optional<unsigned> value) { m_stackTraceLimit = value; }
protected:
JS_EXPORT_PRIVATE explicit JSGlobalObject(VM&, Structure*, const GlobalObjectMethodTable* = nullptr);
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*, JSGlobalObject*, PropertyName, PropertySlot&);
JS_EXPORT_PRIVATE static bool put(JSCell*, JSGlobalObject*, PropertyName, JSValue, PutPropertySlot&);
JS_EXPORT_PRIVATE static void defineGetter(JSObject*, JSGlobalObject*, PropertyName, JSObject* getterFunc, unsigned attributes);
JS_EXPORT_PRIVATE static void defineSetter(JSObject*, JSGlobalObject*, PropertyName, JSObject* setterFunc, unsigned attributes);
JS_EXPORT_PRIVATE static bool defineOwnProperty(JSObject*, JSGlobalObject*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
void addVar(JSGlobalObject* globalObject, const Identifier& propertyName)
{
if (!hasOwnProperty(globalObject, propertyName))
addGlobalVar(propertyName);
}
void addFunction(JSGlobalObject*, 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();
JSCallee* globalCallee() { return m_globalCallee.get(); }
// The following accessors return pristine values, even if a script
// replaces the global object's associated property.
GetterSetter* speciesGetterSetter() const { return m_speciesGetterSetter.get(); }
ArrayConstructor* arrayConstructor() const { return m_arrayConstructor.get(); }
RegExpConstructor* regExpConstructor() const { return m_regExpConstructor.get(); }
ObjectConstructor* objectConstructor() const { return m_objectConstructor.get(); }
FunctionConstructor* functionConstructor() const { return m_functionConstructor.get(); }
JSPromiseConstructor* promiseConstructor() const { return m_promiseConstructor.get(); }
JSInternalPromiseConstructor* internalPromiseConstructor() const { return m_internalPromiseConstructor.get(); }
IntlCollator* defaultCollator() const { return m_defaultCollator.get(this); }
NullGetterFunction* nullGetterFunction() const { return m_nullGetterFunction.get(); }
NullSetterFunction* nullSetterFunction() const { return m_nullSetterFunction.get(); }
NullSetterFunction* nullSetterStrictFunction() const { return m_nullSetterStrictFunction.get(); }
JSFunction* parseIntFunction() const { return m_parseIntFunction.get(this); }
JSFunction* parseFloatFunction() const { return m_parseFloatFunction.get(this); }
JSFunction* evalFunction() const { return m_evalFunction.get(this); }
JSFunction* throwTypeErrorFunction() const;
JSFunction* objectProtoToStringFunction() const { return m_objectProtoToStringFunction.get(this); }
JSFunction* arrayProtoToStringFunction() const { return m_arrayProtoToStringFunction.get(this); }
JSFunction* arrayProtoValuesFunction() const { return m_arrayProtoValuesFunction.get(this); }
JSFunction* arrayProtoValuesFunctionConcurrently() const { return m_arrayProtoValuesFunction.getConcurrently(); }
JSFunction* iteratorProtocolFunction() const { return m_iteratorProtocolFunction.get(this); }
JSFunction* newPromiseCapabilityFunction() const;
JSFunction* promiseResolveFunction() const { return m_promiseResolveFunction.get(this); }
JSFunction* resolvePromiseFunction() const;
JSFunction* rejectPromiseFunction() const;
JSFunction* promiseProtoThenFunction() const;
JSFunction* objectProtoValueOfFunction() const { return m_objectProtoValueOfFunction.get(); }
JSFunction* numberProtoToStringFunction() const { return m_numberProtoToStringFunction.getInitializedOnMainThread(this); }
JSFunction* functionProtoHasInstanceSymbolFunction() const { return m_functionProtoHasInstanceSymbolFunction.get(); }
JSFunction* regExpProtoExecFunction() const;
JSObject* regExpProtoSymbolReplaceFunction() const { return m_regExpProtoSymbolReplace.get(); }
GetterSetter* regExpProtoGlobalGetter() const;
GetterSetter* regExpProtoUnicodeGetter() const;
GetterSetter* throwTypeErrorArgumentsCalleeAndCallerGetterSetter()
{
return m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter.get();
}
JSModuleLoader* moduleLoader() const { return m_moduleLoader.get(this); }
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.prototypeInitializedOnMainThread(this); }
StringPrototype* stringPrototype() const { return m_stringPrototype.get(); }
JSObject* numberPrototype() const { return m_numberObjectStructure.prototypeInitializedOnMainThread(this); }
BigIntPrototype* bigIntPrototype() const { return m_bigIntPrototype.get(); }
JSObject* datePrototype() const { return m_dateStructure.prototype(this); }
JSObject* symbolPrototype() const { return m_symbolObjectStructure.prototypeInitializedOnMainThread(this); }
RegExpPrototype* regExpPrototype() const { return m_regExpPrototype.get(); }
JSObject* errorPrototype() const { return m_errorStructure.prototype(this); }
IteratorPrototype* iteratorPrototype() const { return m_iteratorPrototype.get(); }
AsyncIteratorPrototype* asyncIteratorPrototype() const { return m_asyncIteratorPrototype.get(); }
GeneratorFunctionPrototype* generatorFunctionPrototype() const { return m_generatorFunctionPrototype.get(); }
GeneratorPrototype* generatorPrototype() const { return m_generatorPrototype.get(); }
AsyncFunctionPrototype* asyncFunctionPrototype() const { return m_asyncFunctionPrototype.get(); }
ArrayIteratorPrototype* arrayIteratorPrototype() const { return m_arrayIteratorPrototype.get(); }
MapIteratorPrototype* mapIteratorPrototype() const { return m_mapIteratorPrototype.get(); }
SetIteratorPrototype* setIteratorPrototype() const { return m_setIteratorPrototype.get(); }
JSObject* mapPrototype() const { return m_mapStructure.prototype(this); }
// Workaround for the name conflict between JSCell::setPrototype.
JSObject* jsSetPrototype() const { return m_setStructure.prototype(this); }
JSPromisePrototype* promisePrototype() const { return m_promisePrototype.get(); }
AsyncGeneratorPrototype* asyncGeneratorPrototype() const { return m_asyncGeneratorPrototype.get(); }
AsyncGeneratorFunctionPrototype* asyncGeneratorFunctionPrototype() const { return m_asyncGeneratorFunctionPrototype.get(); }
Structure* debuggerScopeStructure() const { return m_debuggerScopeStructure.get(this); }
Structure* withScopeStructure() const { return m_withScopeStructure.get(this); }
Structure* strictEvalActivationStructure() const { return m_strictEvalActivationStructure.get(this); }
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[arrayIndexFromIndexingType(indexingType)].get();
}
Structure* arrayStructureForIndexingTypeDuringAllocation(IndexingType indexingType) const
{
ASSERT(indexingType & IsArray);
return m_arrayStructureForIndexingShapeDuringAllocation[arrayIndexFromIndexingType(indexingType)].get();
}
Structure* arrayStructureForIndexingTypeDuringAllocation(JSGlobalObject* globalObject, IndexingType indexingType, JSValue newTarget) const;
Structure* arrayStructureForProfileDuringAllocation(JSGlobalObject* globalObject, ArrayAllocationProfile* profile, JSValue newTarget) const
{
return arrayStructureForIndexingTypeDuringAllocation(globalObject, ArrayAllocationProfile::selectIndexingTypeFor(profile), newTarget);
}
bool isOriginalArrayStructure(Structure* structure)
{
return originalArrayStructureForIndexingType(structure->indexingMode() | 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); }
#if JSC_OBJC_API_ENABLED
Structure* objcCallbackFunctionStructure() const { return m_objcCallbackFunctionStructure.get(this); }
Structure* objcWrapperObjectStructure() const { return m_objcWrapperObjectStructure.get(this); }
#endif
#ifdef JSC_GLIB_API_ENABLED
Structure* glibCallbackFunctionStructure() const { return m_glibCallbackFunctionStructure.get(this); }
Structure* glibWrapperObjectStructure() const { return m_glibWrapperObjectStructure.get(this); }
#endif
Structure* dateStructure() const { return m_dateStructure.get(this); }
Structure* symbolObjectStructure() const { return m_symbolObjectStructure.get(this); }
Structure* nullPrototypeObjectStructure() const { return m_nullPrototypeObjectStructure.get(); }
Structure* errorStructure() const { return m_errorStructure.get(this); }
Structure* errorStructure(ErrorType errorType) const
{
switch (errorType) {
case ErrorType::Error:
return errorStructure();
case ErrorType::EvalError:
return m_evalErrorStructure.get(this);
case ErrorType::RangeError:
return m_rangeErrorStructure.get(this);
case ErrorType::ReferenceError:
return m_referenceErrorStructure.get(this);
case ErrorType::SyntaxError:
return m_syntaxErrorStructure.get(this);
case ErrorType::TypeError:
return m_typeErrorStructure.get(this);
case ErrorType::URIError:
return m_URIErrorStructure.get(this);
case ErrorType::AggregateError:
return m_aggregateErrorStructure.get(this);
}
ASSERT_NOT_REACHED();
return nullptr;
}
Structure* calleeStructure() const { return m_calleeStructure.get(); }
Structure* hostFunctionStructure() const { return m_hostFunctionStructure.get(); }
Structure* arrowFunctionStructure(bool isBuiltin) const
{
if (isBuiltin)
return m_builtinFunctions.arrowFunctionStructure.get();
return m_ordinaryFunctions.arrowFunctionStructure.get();
}
Structure* sloppyFunctionStructure(bool isBuiltin) const
{
if (isBuiltin)
return m_builtinFunctions.sloppyFunctionStructure.get();
return m_ordinaryFunctions.sloppyFunctionStructure.get();
}
Structure* strictFunctionStructure(bool isBuiltin) const
{
if (isBuiltin)
return m_builtinFunctions.strictFunctionStructure.get();
return m_ordinaryFunctions.strictFunctionStructure.get();
}
Structure* boundFunctionStructure() const { return m_boundFunctionStructure.get(this); }
Structure* customGetterSetterFunctionStructure() const { return m_customGetterSetterFunctionStructure.get(this); }
Structure* nativeStdFunctionStructure() const { return m_nativeStdFunctionStructure.get(this); }
PropertyOffset functionNameOffset() const { return m_functionNameOffset; }
Structure* numberObjectStructure() const { return m_numberObjectStructure.get(this); }
Structure* regExpStructure() const { return m_regExpStructure.get(); }
Structure* generatorStructure() const { return m_generatorStructure.get(); }
Structure* asyncGeneratorStructure() const { return m_asyncGeneratorStructure.get(); }
Structure* generatorFunctionStructure() const { return m_generatorFunctionStructure.get(); }
Structure* asyncFunctionStructure() const { return m_asyncFunctionStructure.get(); }
Structure* asyncGeneratorFunctionStructure() const { return m_asyncGeneratorFunctionStructure.get(); }
Structure* arrayIteratorStructure() const { return m_arrayIteratorStructure.get(); }
Structure* mapIteratorStructure() const { return m_mapIteratorStructure.get(); }
Structure* setIteratorStructure() const { return m_setIteratorStructure.get(); }
Structure* stringObjectStructure() const { return m_stringObjectStructure.get(); }
Structure* iteratorResultObjectStructure() const { return m_iteratorResultObjectStructure.get(this); }
Structure* dataPropertyDescriptorObjectStructure() const { return m_dataPropertyDescriptorObjectStructure.get(this); }
Structure* accessorPropertyDescriptorObjectStructure() const { return m_accessorPropertyDescriptorObjectStructure.get(this); }
Structure* regExpMatchesArrayStructure() const { return m_regExpMatchesArrayStructure.get(); }
Structure* moduleRecordStructure() const { return m_moduleRecordStructure.get(this); }
Structure* moduleNamespaceObjectStructure() const { return m_moduleNamespaceObjectStructure.get(this); }
Structure* proxyObjectStructure() const { return m_proxyObjectStructure.get(this); }
Structure* callableProxyObjectStructure() const { return m_callableProxyObjectStructure.get(this); }
Structure* proxyRevokeStructure() const { return m_proxyRevokeStructure.get(this); }
Structure* restParameterStructure() const { return arrayStructureForIndexingTypeDuringAllocation(ArrayWithContiguous); }
Structure* originalRestParameterStructure() const { return originalArrayStructureForIndexingType(ArrayWithContiguous); }
#if ENABLE(WEBASSEMBLY)
Structure* webAssemblyModuleRecordStructure() const { return m_webAssemblyModuleRecordStructure.get(this); }
Structure* webAssemblyFunctionStructure() const { return m_webAssemblyFunctionStructure.get(this); }
Structure* jsToWasmICCalleeStructure() const { return m_jsToWasmICCalleeStructure.get(this); }
Structure* webAssemblyWrapperFunctionStructure() const { return m_webAssemblyWrapperFunctionStructure.get(this); }
#endif // ENABLE(WEBASSEMBLY)
Structure* collatorStructure() { return m_collatorStructure.get(this); }
Structure* dateTimeFormatStructure() { return m_dateTimeFormatStructure.get(this); }
Structure* displayNamesStructure() { return m_displayNamesStructure.get(this); }
Structure* listFormatStructure() { return m_listFormatStructure.get(this); }
Structure* numberFormatStructure() { return m_numberFormatStructure.get(this); }
Structure* localeStructure() { return m_localeStructure.get(this); }
Structure* pluralRulesStructure() { return m_pluralRulesStructure.get(this); }
Structure* relativeTimeFormatStructure() { return m_relativeTimeFormatStructure.get(this); }
Structure* segmentIteratorStructure() { return m_segmentIteratorStructure.get(this); }
Structure* segmenterStructure() { return m_segmenterStructure.get(this); }
Structure* segmentsStructure() { return m_segmentsStructure.get(this); }
JSObject* dateTimeFormatConstructor() { return m_dateTimeFormatStructure.constructor(this); }
JSObject* dateTimeFormatPrototype() { return m_dateTimeFormatStructure.prototype(this); }
JSObject* numberFormatConstructor() { return m_numberFormatStructure.constructor(this); }
JSObject* numberFormatPrototype() { return m_numberFormatStructure.prototype(this); }
JS_EXPORT_PRIVATE void setRemoteDebuggingEnabled(bool);
JS_EXPORT_PRIVATE bool remoteDebuggingEnabled() const;
void setIsITML();
RegExpGlobalData& regExpGlobalData() { return m_regExpGlobalData; }
static ptrdiff_t regExpGlobalDataOffset() { return OBJECT_OFFSETOF(JSGlobalObject, m_regExpGlobalData); }
static ptrdiff_t offsetOfVM() { return OBJECT_OFFSETOF(JSGlobalObject, m_vm); }
#if ENABLE(REMOTE_INSPECTOR)
Inspector::JSGlobalObjectInspectorController& inspectorController() const { return *m_inspectorController.get(); }
JSGlobalObjectDebuggable& inspectorDebuggable() { return *m_inspectorDebuggable.get(); }
#endif
void bumpGlobalLexicalBindingEpoch(VM&);
unsigned globalLexicalBindingEpoch() const { return m_globalLexicalBindingEpoch; }
static ptrdiff_t globalLexicalBindingEpochOffset() { return OBJECT_OFFSETOF(JSGlobalObject, m_globalLexicalBindingEpoch); }
unsigned* addressOfGlobalLexicalBindingEpoch() { return &m_globalLexicalBindingEpoch; }
JS_EXPORT_PRIVATE void setConsoleClient(WeakPtr<ConsoleClient>&&);
WeakPtr<ConsoleClient> consoleClient() const { return m_consoleClient; }
void setName(const String&);
const String& name() const { return m_name; }
void setUnhandledRejectionCallback(VM& vm, JSObject* function) { m_unhandledRejectionCallback.set(vm, function); }
JSObject* unhandledRejectionCallback() const { return m_unhandledRejectionCallback.get(); }
static void reportUncaughtExceptionAtEventLoop(JSGlobalObject*, Exception*);
static JSObject* currentScriptExecutionOwner(JSGlobalObject* global) { return global; }
static ScriptExecutionStatus scriptExecutionStatus(JSGlobalObject*, JSObject*) { return ScriptExecutionStatus::Running; }
JSObject* arrayBufferPrototype(ArrayBufferSharingMode sharingMode) const
{
switch (sharingMode) {
case ArrayBufferSharingMode::Default:
return m_arrayBufferStructure.prototype(this);
case ArrayBufferSharingMode::Shared:
return m_sharedArrayBufferStructure.prototype(this);
}
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
Structure* arrayBufferStructure(ArrayBufferSharingMode sharingMode) const
{
switch (sharingMode) {
case ArrayBufferSharingMode::Default:
return m_arrayBufferStructure.get(this);
case ArrayBufferSharingMode::Shared:
return m_sharedArrayBufferStructure.get(this);
}
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
JSObject* arrayBufferConstructor(ArrayBufferSharingMode sharingMode) const
{
switch (sharingMode) {
case ArrayBufferSharingMode::Default:
return m_arrayBufferStructure.constructor(this);
case ArrayBufferSharingMode::Shared:
return m_sharedArrayBufferStructure.constructor(this);
}
RELEASE_ASSERT_NOT_REACHED();
return nullptr;
}
#define DEFINE_ACCESSORS_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase, featureFlag) \
Structure* properName ## Structure() { return m_ ## properName ## Structure.get(); }
FOR_EACH_SIMPLE_BUILTIN_TYPE(DEFINE_ACCESSORS_FOR_SIMPLE_TYPE)
FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(DEFINE_ACCESSORS_FOR_SIMPLE_TYPE)
#undef DEFINE_ACCESSORS_FOR_SIMPLE_TYPE
#define DEFINE_ACCESSORS_FOR_LAZY_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase, featureFlag) \
Structure* properName ## Structure() { return m_ ## properName ## Structure.get(this); } \
JSObject* properName ## Constructor() { return m_ ## properName ## Structure.constructor(this); }
FOR_EACH_LAZY_BUILTIN_TYPE(DEFINE_ACCESSORS_FOR_LAZY_TYPE)
FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_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* linkTimeConstant(LinkTimeConstant value) const
{
JSCell* result = m_linkTimeConstants[static_cast<unsigned>(value)].getInitializedOnMainThread(this);
ASSERT(result);
return result;
}
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*);
const GlobalObjectMethodTable* globalObjectMethodTable() const { return m_globalObjectMethodTable; }
JS_EXPORT_PRIVATE CallFrame* deprecatedCallFrameForDebugger();
static bool supportsRichSourceInfo(const JSGlobalObject*) { return true; }
static bool shouldInterruptScript(const JSGlobalObject*) { return true; }
static bool shouldInterruptScriptBeforeTimeout(const JSGlobalObject*) { return false; }
static RuntimeFlags javaScriptRuntimeFlags(const JSGlobalObject*) { return RuntimeFlags(); }
JS_EXPORT_PRIVATE void queueMicrotask(Ref<Microtask>&&);
bool evalEnabled() const { return m_evalEnabled; }
bool webAssemblyEnabled() const { return m_webAssemblyEnabled; }
const String& evalDisabledErrorMessage() const { return m_evalDisabledErrorMessage; }
const String& webAssemblyDisabledErrorMessage() const { return m_webAssemblyDisabledErrorMessage; }
void setEvalEnabled(bool enabled, const String& errorMessage = String())
{
m_evalEnabled = enabled;
m_evalDisabledErrorMessage = errorMessage;
}
void setWebAssemblyEnabled(bool enabled, const String& errorMessage = String())
{
m_webAssemblyEnabled = enabled;
m_webAssemblyDisabledErrorMessage = errorMessage;
}
#if ASSERT_ENABLED
const JSGlobalObject* globalObjectAtDebuggerEntry() const { return m_globalObjectAtDebuggerEntry; }
void setGlobalObjectAtDebuggerEntry(const JSGlobalObject* globalObject) { m_globalObjectAtDebuggerEntry = globalObject; }
#endif
void resetPrototype(VM&, JSValue prototype);
VM& vm() const { return *m_vm; }
JSObject* globalThis() const;
WriteBarrier<JSObject>* addressOfGlobalThis() { return &m_globalThis; }
OptionSet<CodeGenerationMode> defaultCodeGenerationMode() const;
static Structure* createStructure(VM& vm, JSValue prototype)
{
Structure* result = Structure::create(vm, nullptr, 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;
}
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; }
JS_EXPORT_PRIVATE void exposeDollarVM(VM&);
#if JSC_OBJC_API_ENABLED
JSWrapperMap* wrapperMap() const { return m_wrapperMap.get(); }
void setWrapperMap(JSWrapperMap* map) { m_wrapperMap = map; }
#endif
#ifdef JSC_GLIB_API_ENABLED
WrapperMap* wrapperMap() const { return m_wrapperMap.get(); }
void setWrapperMap(std::unique_ptr<WrapperMap>&&);
#endif
void tryInstallArraySpeciesWatchpoint();
void installNumberPrototypeWatchpoint(NumberPrototype*);
void installMapPrototypeWatchpoint(MapPrototype*);
void installSetPrototypeWatchpoint(SetPrototype*);
void tryInstallArrayBufferSpeciesWatchpoint(ArrayBufferSharingMode);
protected:
void tryInstallSpeciesWatchpoint(JSObject* prototype, JSObject* constructor, std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>>& constructorWatchpoint, std::unique_ptr<ObjectPropertyChangeAdaptiveWatchpoint<InlineWatchpointSet>>& speciesWatchpoint, InlineWatchpointSet& speciesWatchpointSet);
struct GlobalPropertyInfo {
GlobalPropertyInfo(const Identifier& i, JSValue v, unsigned a)
: identifier(i)
, value(v)
, attributes(a)
{
ASSERT(Thread::current().stack().contains(this));
}
const Identifier identifier;
JSValue value;
unsigned attributes;
};
JS_EXPORT_PRIVATE void addStaticGlobals(GlobalPropertyInfo*, int count);
void setNeedsSiteSpecificQuirks(bool needQuirks) { m_needsSiteSpecificQuirks = needQuirks; }
private:
friend class LLIntOffsetsExtractor;
void fireWatchpointAndMakeAllArrayStructuresSlowPut(VM&);
void setGlobalThis(VM&, JSObject* globalThis);
template<ErrorType errorType>
void initializeErrorConstructor(LazyClassStructure::Initializer&);
void initializeAggregateErrorConstructor(LazyClassStructure::Initializer&);
JS_EXPORT_PRIVATE void init(VM&);
void initStaticGlobals(VM&);
void fixupPrototypeChainWithObjectPrototype(VM&);
JS_EXPORT_PRIVATE static void clearRareData(JSCell*);
bool m_needsSiteSpecificQuirks { false };
#if JSC_OBJC_API_ENABLED
RetainPtr<JSWrapperMap> m_wrapperMap;
#endif
#ifdef JSC_GLIB_API_ENABLED
std::unique_ptr<WrapperMap> m_wrapperMap;
#endif
};
inline JSArray* constructEmptyArray(JSGlobalObject* globalObject, ArrayAllocationProfile* profile, unsigned initialLength = 0, JSValue newTarget = JSValue())
{
VM& vm = getVM(globalObject);
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure;
if (initialLength >= MIN_ARRAY_STORAGE_CONSTRUCTION_LENGTH)
structure = globalObject->arrayStructureForIndexingTypeDuringAllocation(globalObject, ArrayWithArrayStorage, newTarget);
else
structure = globalObject->arrayStructureForProfileDuringAllocation(globalObject, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
JSArray* result = JSArray::tryCreate(vm, structure, initialLength);
if (UNLIKELY(!result)) {
throwOutOfMemoryError(globalObject, scope);
return nullptr;
}
return ArrayAllocationProfile::updateLastAllocationFor(profile, result);
}
inline JSArray* constructArray(JSGlobalObject* globalObject, ArrayAllocationProfile* profile, const ArgList& values, JSValue newTarget = JSValue())
{
VM& vm = getVM(globalObject);
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure = globalObject->arrayStructureForProfileDuringAllocation(globalObject, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArray(globalObject, structure, values));
}
inline JSArray* constructArray(JSGlobalObject* globalObject, ArrayAllocationProfile* profile, const JSValue* values, unsigned length, JSValue newTarget = JSValue())
{
VM& vm = getVM(globalObject);
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure = globalObject->arrayStructureForProfileDuringAllocation(globalObject, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArray(globalObject, structure, values, length));
}
inline JSArray* constructArrayNegativeIndexed(JSGlobalObject* globalObject, ArrayAllocationProfile* profile, const JSValue* values, unsigned length, JSValue newTarget = JSValue())
{
VM& vm = getVM(globalObject);
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* structure = globalObject->arrayStructureForProfileDuringAllocation(globalObject, profile, newTarget);
RETURN_IF_EXCEPTION(scope, nullptr);
return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArrayNegativeIndexed(globalObject, structure, values, length));
}
inline JSObject* JSScope::globalThis()
{
return globalObject()->globalThis();
}
inline JSObject* JSGlobalObject::globalThis() const
{
return m_globalThis.get();
}
inline OptionSet<CodeGenerationMode> JSGlobalObject::defaultCodeGenerationMode() const
{
OptionSet<CodeGenerationMode> codeGenerationMode;
if (hasInteractiveDebugger() || Options::forceDebuggerBytecodeGeneration() || Options::debuggerTriggersBreakpointException())
codeGenerationMode.add(CodeGenerationMode::Debugger);
if (vm().typeProfiler())
codeGenerationMode.add(CodeGenerationMode::TypeProfiler);
if (vm().controlFlowProfiler())
codeGenerationMode.add(CodeGenerationMode::ControlFlowProfiler);
return codeGenerationMode;
}
} // namespace JSC
Reference in New Issue View Git Blame Copy Permalink