Object Class Reference

#include <objects.h>

Inheritance diagram for Object:

Collaboration diagram for Object:

Public Types
enum	ValueType { OPTIMAL_REPRESENTATION, FORCE_TAGGED }

Public Member Functions
bool	IsObject ()
bool	IsFixedArrayBase ()
bool	IsExternal ()
bool	IsAccessorInfo ()
bool	IsStruct ()
	INLINE (bool IsSpecObject())
	INLINE (bool IsSpecFunction())
bool	IsCallable ()
	INLINE (bool IsUndefined())
	INLINE (bool IsNull())
	INLINE (bool IsTheHole())
	INLINE (bool IsUninitialized())
	INLINE (bool IsTrue())
	INLINE (bool IsFalse())
bool	IsArgumentsMarker ()
bool	NonFailureIsHeapObject ()
bool	IsFiller ()
double	Number ()
bool	IsNaN ()
bool	ToInt32 (int32_t *value)
bool	ToUint32 (uint32_t *value)
Representation	OptimalRepresentation (ValueType type=OPTIMAL_REPRESENTATION)
bool	FitsRepresentation (Representation representation)
MaybeObject *	AllocateNewStorageFor (Heap *heap, Representation representation)
bool	HasValidElements ()
bool	HasSpecificClassOf (String *name)
MUST_USE_RESULT MaybeObject *	ToObject (Isolate *isolate)
bool	BooleanValue ()
MUST_USE_RESULT MaybeObject *	ToObject (Context *native_context)
MUST_USE_RESULT MaybeObject *	ToSmi ()
void	Lookup (Name *name, LookupResult *result)
MUST_USE_RESULT MaybeObject *	GetProperty (Name *key)
MUST_USE_RESULT MaybeObject *	GetProperty (Name *key, PropertyAttributes *attributes)
MUST_USE_RESULT MaybeObject *	GetPropertyWithReceiver (Object *receiver, Name *key, PropertyAttributes *attributes)
MUST_USE_RESULT MaybeObject *	GetProperty (Object *receiver, LookupResult *result, Name *key, PropertyAttributes *attributes)
MUST_USE_RESULT MaybeObject *	GetPropertyWithDefinedGetter (Object *receiver, JSReceiver *getter)
Object *	GetPrototype (Isolate *isolate)
Map *	GetMarkerMap (Isolate *isolate)
Object *	GetHash ()
bool	SameValue (Object *other)
bool	ToArrayIndex (uint32_t *index)
bool	IsStringObjectWithCharacterAt (uint32_t index)
void	VerifyApiCallResultType ()
void	ShortPrint (FILE *out=stdout)
void	ShortPrint (StringStream *accumulator)

Static Public Member Functions
static MUST_USE_RESULT Handle < Object >	ToSmi (Isolate *isolate, Handle< Object > object)
static Handle< Object >	GetPropertyWithReceiver (Handle< Object > object, Handle< Object > receiver, Handle< Name > name, PropertyAttributes *attributes)
static Handle< Object >	GetProperty (Handle< Object > object, Handle< Name > key)
static Handle< Object >	GetProperty (Handle< Object > object, Handle< Object > receiver, LookupResult *result, Handle< Name > key, PropertyAttributes *attributes)
static MUST_USE_RESULT MaybeObject *	GetPropertyOrFail (Handle< Object > object, Handle< Object > receiver, LookupResult *result, Handle< Name > key, PropertyAttributes *attributes)
static Handle< Object >	GetElement (Isolate *isolate, Handle< Object > object, uint32_t index)
static Handle< Object >	GetElementNoExceptionThrown (Isolate *isolate, Handle< Object > object, uint32_t index)
static Handle< Object >	GetElementWithReceiver (Isolate *isolate, Handle< Object > object, Handle< Object > receiver, uint32_t index)
static Handle< Object >	GetOrCreateHash (Handle< Object > object, Isolate *isolate)
static Object *	cast (Object *value)

Static Public Attributes
static const int	kHeaderSize = 0

Detailed Description

Definition at line 1440 of file objects.h.

Member Enumeration Documentation

enum ValueType

Enumerator
OPTIMAL_REPRESENTATION
FORCE_TAGGED

Definition at line 1484 of file objects.h.

Member Function Documentation

MaybeObject * AllocateNewStorageFor ( Heap *  heap, Representation  representation  )

inline

Definition at line 279 of file objects-inl.h.

References Heap::AllocateHeapNumber(), Smi::FromInt(), Representation::IsDouble(), Representation::IsSmi(), and Object::Number().

Referenced by JSObject::FastPropertyAt().

bool BooleanValue

(

)

Definition at line 113 of file objects.cc.

References Smi::cast(), HeapNumber::cast(), String::cast(), HeapNumber::HeapNumberBooleanValue(), String::length(), and Smi::value().

static Object* cast ( Object *  value )

inlinestatic

Definition at line 1641 of file objects.h.

Referenced by v8::internal::GetEnumPropertyKeys(), and Object::GetProperty().

bool FitsRepresentation ( Representation  representation )

inline

Definition at line 1507 of file objects.h.

References Representation::IsDouble(), Representation::IsHeapObject(), Representation::IsNone(), and Representation::IsSmi().

Handle< Object > GetElement ( Isolate *  isolate, Handle< Object >  object, uint32_t  index  )

inlinestatic

Definition at line 1060 of file objects-inl.h.

References ASSERT, and Object::GetElementWithReceiver().

Referenced by v8::internal::BUILTIN(), Object::Get(), Runtime::GetElementOrCharAt(), Object::GetProperty(), v8::internal::RUNTIME_FUNCTION(), and TEST().

Handle< Object > GetElementNoExceptionThrown ( Isolate *  isolate, Handle< Object >  object, uint32_t  index  )

inlinestatic

Definition at line 1071 of file objects-inl.h.

References CHECK_NOT_EMPTY_HANDLE, and Object::GetElementWithReceiver().

Referenced by JSObject::DefineAccessor(), Factory::EmergencyNewError(), StackTrace::GetFrame(), Execution::InstantiateFunction(), Logger::LogRuntime(), JSObject::SetElement(), and THREADED_TEST().

Handle< Object > GetElementWithReceiver ( Isolate *  isolate, Handle< Object >  object, Handle< Object >  receiver, uint32_t  index  )

static

Definition at line 965 of file objects.cc.

References v8::ACCESS_GET, ASSERT, CALL_HEAP_FUNCTION, Handle< T >::cast(), Isolate::context(), Isolate::factory(), JSObject::GetElementWithInterceptor(), Object::GetPrototype(), Isolate::heap(), Value::IsBoolean(), Value::IsNull(), Value::IsNumber(), Value::IsString(), Value::IsSymbol(), Value::IsUndefined(), Isolate::MayIndexedAccessWrapper(), Context::native_context(), Isolate::ReportFailedAccessCheckWrapper(), RETURN_HANDLE_IF_SCHEDULED_EXCEPTION, and RETURN_IF_EMPTY_HANDLE_VALUE.

Referenced by Object::GetElement(), Object::GetElementNoExceptionThrown(), and JSObject::GetElementWithInterceptor().

Object * GetHash

(

)

Definition at line 1070 of file objects.cc.

References ASSERT, JSReceiver::cast(), Name::cast(), Oddball::cast(), v8::internal::ComputeLongHash(), v8::internal::double_to_uint64(), Smi::FromInt(), JSReceiver::GetIdentityHash(), Name::Hash(), Smi::kMaxValue, and Object::Number().

Referenced by ObjectHashSet::Contains(), ObjectHashTableShape< entrysize >::Hash(), ObjectHashTableShape< entrysize >::HashForObject(), and ObjectHashTable::Lookup().

Map * GetMarkerMap

(

Isolate *

isolate

)

Definition at line 1064 of file objects.cc.

References HeapObject::cast(), Isolate::heap(), and HeapObject::map().

Handle< Object > GetOrCreateHash ( Handle< Object >  object, Isolate *  isolate  )

static

Definition at line 1091 of file objects.cc.

References ASSERT, and JSReceiver::GetOrCreateIdentityHash().

Referenced by ObjectHashSet::Add(), and ObjectHashTable::Put().

MaybeObject * GetProperty ( Name *  key )

inline

Definition at line 1081 of file objects-inl.h.

References Object::GetPropertyWithReceiver().

Referenced by JSObject::DefineAccessor(), Symbol::For(), Symbol::ForApi(), Private::ForApi(), JSObject::GetLocalPropertyPostInterceptor(), GlobalObject::GetPropertyNoExceptionThrown(), JSObject::GetPropertyPostInterceptor(), Object::GetPropertyWithReceiver(), LoadIC::Load(), v8::internal::RUNTIME_FUNCTION(), JSObject::SetLocalPropertyIgnoreAttributes(), JSObject::SetPropertyForResult(), and TEST().

MaybeObject * GetProperty ( Name *  key, PropertyAttributes *  attributes  )

inline

Definition at line 1087 of file objects-inl.h.

References Object::GetPropertyWithReceiver().

Handle< Object > GetProperty ( Handle< Object >  object, Handle< Name >  key  )

static

Definition at line 490 of file objects.cc.

References CALL_HEAP_FUNCTION, Object::GetElement(), and v8::internal::Object.

Handle< Object > GetProperty ( Handle< Object >  object, Handle< Object >  receiver, LookupResult *  result, Handle< Name >  key, PropertyAttributes *  attributes  )

static

Definition at line 829 of file objects.cc.

References CALL_HEAP_FUNCTION, and v8::internal::Object.

MaybeObject * GetProperty	(	Object *	receiver,
		LookupResult *	result,
		Name *	key,
		PropertyAttributes *	attributes
	)

Definition at line 855 of file objects.cc.

References ABSENT, v8::ACCESS_GET, ASSERT, v8::internal::CALLBACKS, Object::cast(), JSObject::cast(), v8::internal::CONSTANT, v8::internal::FIELD, HeapObject::GetIsolate(), JSObject::GetPropertyWithCallback(), JSObject::GetPropertyWithInterceptor(), Object::GetPrototype(), v8::internal::handle(), v8::internal::HANDLER, Isolate::heap(), v8::internal::INTERCEPTOR, Isolate::MayNamedAccess(), v8::internal::NONEXISTENT, v8::internal::NORMAL, v8::internal::NULL, RETURN_IF_EMPTY_HANDLE, v8::internal::TRANSITION, and UNREACHABLE.

MaybeObject * GetPropertyOrFail ( Handle< Object >  object, Handle< Object >  receiver, LookupResult *  result, Handle< Name >  key, PropertyAttributes *  attributes  )

static

Definition at line 842 of file objects.cc.

References CALL_HEAP_FUNCTION_PASS_EXCEPTION.

MaybeObject * GetPropertyWithDefinedGetter	(	Object *	receiver,
		JSReceiver *	getter
	)

Definition at line 529 of file objects.cc.

References Execution::Call(), Failure::Exception(), HeapObject::GetIsolate(), and v8::internal::NULL.

Handle< Object > GetPropertyWithReceiver ( Handle< Object >  object, Handle< Object >  receiver, Handle< Name >  name, PropertyAttributes *  attributes  )

static

Definition at line 159 of file objects.cc.

References ABSENT, ASSERT, and Object::GetProperty().

Referenced by Object::GetProperty(), and JSObject::GetPropertyPostInterceptor().

MaybeObject * GetPropertyWithReceiver	(	Object *	receiver,
		Name *	key,
		PropertyAttributes *	attributes
	)

Definition at line 173 of file objects.cc.

References ABSENT, ASSERT, HeapObject::GetIsolate(), Object::GetProperty(), and Object::Lookup().

Object * GetPrototype

(

Isolate *

isolate

)

Definition at line 1032 of file objects.cc.

References HeapObject::cast(), Isolate::context(), Isolate::heap(), HeapObject::map(), and Context::native_context().

Referenced by Deoptimizer::DeoptimizeGlobalObject(), Object::FindInstanceInPrototypeChain(), JSObject::GetLocalElementAccessorPair(), Object::GetProperty(), v8::internal::RUNTIME_FUNCTION(), and JSObject::SetPrototype().

bool HasSpecificClassOf ( String *  name )

inline

Definition at line 1055 of file objects-inl.h.

References JSObject::cast(), JSReceiver::class_name(), and v8::internal::name.

bool HasValidElements ( )

inline

Definition at line 272 of file objects-inl.h.

Referenced by JSObject::set_map_and_elements().

INLINE

(

bool

IsSpecObject()

)

INLINE

(

bool

IsSpecFunction()

)

INLINE

(

bool

IsUndefined()

)

INLINE

(

bool

IsNull()

)

INLINE

(

bool

IsTheHole()

)

INLINE

(

bool

IsUninitialized()

)

INLINE

(

bool

IsTrue()

)

INLINE

(

bool

IsFalse()

)

bool IsAccessorInfo ( )

inline

Definition at line 158 of file objects-inl.h.

Referenced by BASE_EMBEDDED< Visitor >::IsDataProperty().

bool IsArgumentsMarker ( )

inline

Definition at line 1010 of file objects-inl.h.

References Oddball::cast(), Oddball::kArgumentMarker, and Oddball::kind().

bool IsCallable

(

)

Definition at line 124 of file objects.cc.

References HeapObject::cast(), JSFunctionProxy::cast(), Map::has_instance_call_handler(), and HeapObject::map().

bool IsExternal ( )

inline

Definition at line 151 of file objects-inl.h.

References HeapObject::cast(), HeapObject::GetHeap(), and HeapObject::map().

bool IsFiller ( )

inline

Definition at line 606 of file objects-inl.h.

References HeapObject::cast(), v8::internal::FILLER_TYPE, v8::internal::FREE_SPACE_TYPE, Map::instance_type(), and HeapObject::map().

Referenced by Heap::AllowedToBeMigrated(), IncrementalMarking::UpdateMarkingDequeAfterScavenge(), and ElementsAccessorBase< FastPackedSmiElementsAccessor, ElementsKindTraits< FAST_SMI_ELEMENTS > >::ValidateImpl().

bool IsFixedArrayBase ( )

inline

Definition at line 144 of file objects-inl.h.

Referenced by FixedArrayBase::cast().

bool IsNaN ( )

inline

Definition at line 1023 of file objects-inl.h.

References HeapNumber::cast(), and std::isnan().

bool IsObject ( )

inline

Definition at line 1443 of file objects.h.

bool IsStringObjectWithCharacterAt ( uint32_t  index )

inline

Definition at line 2091 of file objects-inl.h.

References JSValue::cast(), String::cast(), and String::length().

bool IsStruct ( )

inline

Definition at line 960 of file objects-inl.h.

References HeapObject::cast(), MAKE_STRUCT_CASE, v8::internal::map, and STRUCT_LIST.

void Lookup	(	Name *	name,
		LookupResult *	result
	)

Definition at line 135 of file objects.cc.

References ASSERT, JSReceiver::cast(), JSReceiver::Lookup(), v8::internal::map, Context::native_context(), and v8::internal::NULL.

Referenced by Object::GetPropertyWithReceiver(), and v8::internal::RUNTIME_FUNCTION().

bool NonFailureIsHeapObject ( )

inline

Definition at line 173 of file objects-inl.h.

References ASSERT, and v8::internal::kSmiTagMask.

Referenced by IncrementalMarkingMarkingVisitor::INLINE().

double Number ( )

inline

Definition at line 1015 of file objects-inl.h.

References ASSERT.

Referenced by Object::AllocateNewStorageFor(), v8::internal::BUILTIN(), v8::internal::CheckArrayAbuse(), Object::GetHash(), Heap::GetNumberStringCache(), UnseededNumberDictionaryShape::HashForObject(), HeapNumber::HeapNumberPrint(), NumberDictionaryShape::IsMatch(), JSObject::JSObjectShortPrint(), Array::Length(), v8::internal::NumberToInt32(), v8::internal::NumberToUint32(), StringStream::PrintMentionedObjectCache(), v8::internal::RUNTIME_FUNCTION(), Object::SameValue(), SeededNumberDictionaryShape::SeededHashForObject(), DictionaryElementsAccessor::SetLengthWithoutNormalize(), Heap::SetNumberStringCache(), JSObject::SlowReverseLookup(), and TEST().

Representation OptimalRepresentation ( ValueType  type = OPTIMAL_REPRESENTATION )

inline

Definition at line 1489 of file objects.h.

References ASSERT, Representation::Double(), Object::FORCE_TAGGED, Representation::HeapObject(), Representation::None(), Representation::Smi(), and Representation::Tagged().

bool SameValue

(

Object *

other

)

Definition at line 1102 of file objects.cc.

References String::cast(), v8::internal::equal, String::Equals(), std::isnan(), and Object::Number().

Referenced by ObjectHashTableShape< entrysize >::IsMatch(), WeakHashTableShape< entrysize >::IsMatch(), and v8::internal::RUNTIME_FUNCTION().

void ShortPrint

(

FILE *

out = stdout

)

Definition at line 1123 of file objects.cc.

References StringStream::OutputToFile().

Referenced by SharedFunctionInfo::DisableOptimization(), CodeFlusher::EvictCandidate(), SharedFunctionInfo::EvictFromOptimizedCodeMap(), CodeFlusher::EvictOptimizedCodeMap(), HeapObject::HeapObjectShortPrint(), JSObject::JSObjectShortPrint(), StringStream::PrintMentionedObjectCache(), JavaScriptFrame::PrintTop(), StringStream::PrintUsingMap(), v8::internal::RUNTIME_FUNCTION(), and SharedFunctionInfo::SearchOptimizedCodeMap().

void ShortPrint

(

StringStream *

accumulator

)

Definition at line 1131 of file objects.cc.

References Smi::cast(), Failure::cast(), HeapObject::cast(), Failure::FailurePrint(), HeapObject::HeapObjectShortPrint(), and Smi::SmiPrint().

bool ToArrayIndex ( uint32_t *  index )

inline

Definition at line 2072 of file objects-inl.h.

References Smi::cast(), HeapNumber::cast(), Smi::value(), and HeapNumber::value().

Referenced by JSArray::JSArrayUpdateLengthFromIndex(), v8::internal::RUNTIME_FUNCTION(), JSObject::SetFastElement(), ElementsAccessorBase< ElementsAccessorSubclass, ElementsTraitsParam >::SetLengthImpl(), JSObject::ShouldConvertToFastElements(), THREADED_TEST(), and JSObject::TransitionElementsKind().

bool ToInt32

(

int32_t *

value

)

Definition at line 184 of file objects.cc.

References Smi::cast(), HeapNumber::cast(), v8::internal::FastD2I(), v8::internal::FastI2D(), Smi::value(), and HeapNumber::value().

MaybeObject * ToObject

(

Isolate *

isolate

)

Definition at line 91 of file objects.cc.

References Isolate::context(), Failure::InternalError(), and Context::native_context().

MaybeObject * ToObject

(

Context *

native_context

)

Definition at line 76 of file objects.cc.

References ASSERT.

Handle< Object > ToSmi ( Isolate *  isolate, Handle< Object >  object  )

inlinestatic

Definition at line 1028 of file objects-inl.h.

References Handle< T >::cast(), v8::internal::FastD2I(), v8::internal::FastI2D(), Smi::FromInt(), v8::internal::handle(), and Smi::IsValid().

MaybeObject * ToSmi ( )

inline

Definition at line 1042 of file objects-inl.h.

References HeapNumber::cast(), Failure::Exception(), v8::internal::FastD2I(), v8::internal::FastI2D(), Smi::FromInt(), Smi::IsValid(), and HeapNumber::value().

Referenced by ElementsAccessorBase< ElementsAccessorSubclass, ElementsTraitsParam >::SetLengthImpl().

bool ToUint32

(

uint32_t *

value

)

Definition at line 200 of file objects.cc.

References Smi::cast(), HeapNumber::cast(), v8::internal::FastD2UI(), v8::internal::FastUI2D(), Smi::value(), and HeapNumber::value().

void VerifyApiCallResultType ( )

inline

Definition at line 2104 of file objects-inl.h.

References FATAL.

Field Documentation

const int kHeaderSize = 0

static

Definition at line 1644 of file objects.h.

Referenced by ByteArray::LengthFor(), ByteArray::Size(), FixedArray::SizeFor(), FixedDoubleArray::SizeFor(), and ByteArray::SizeFor().

---

The documentation for this class was generated from the following files:

• src/objects.h
• src/objects-inl.h
• src/objects.cc