#include <objects.h>

Inheritance diagram for v8::internal::PropertyCell:

Collaboration diagram for v8::internal::PropertyCell:

Public Types
typedef FixedBodyDescriptor< kValueOffset, kSize, kSize >	BodyDescriptor

Public Types inherited from v8::internal::Cell
typedef FixedBodyDescriptor< kValueOffset, kValueOffset+kPointerSize, kSize >	BodyDescriptor

Public Types inherited from v8::internal::Object
enum	StoreFromKeyed { MAY_BE_STORE_FROM_KEYED , CERTAINLY_NOT_STORE_FROM_KEYED }

enum	StorePropertyMode { NORMAL_PROPERTY , SUPER_PROPERTY }

Public Member Functions
HeapType *	type ()

void	set_type (HeapType *value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)

Address	TypeAddress ()

Public Member Functions inherited from v8::internal::Cell
Address	ValueAddress ()

Public Member Functions inherited from v8::internal::HeapObject
Map *	map () const

void	set_map (Map *value)

void	set_map_no_write_barrier (Map *value)

Map *	synchronized_map ()

MapWord	synchronized_map_word () const

void	synchronized_set_map (Map *value)

void	synchronized_set_map_no_write_barrier (Map *value)

void	synchronized_set_map_word (MapWord map_word)

MapWord	map_word () const

void	set_map_word (MapWord map_word)

Heap *	GetHeap () const

Isolate *	GetIsolate () const

Address	address ()

void	Iterate (ObjectVisitor *v)

void	IterateBody (InstanceType type, int object_size, ObjectVisitor *v)

int	Size ()

bool	MayContainRawValues ()

int	SizeFromMap (Map *map)

WriteBarrierMode	GetWriteBarrierMode (const DisallowHeapAllocation &promise)

void	HeapObjectShortPrint (OStream &os)

	STATIC_ASSERT (kMapOffset==Internals::kHeapObjectMapOffset)

Public Member Functions inherited from v8::internal::Object
bool	IsObject () const

	INLINE (bool IsFixedArrayBase() const)

	INLINE (bool IsExternal() const)

	INLINE (bool IsAccessorInfo() const)

	INLINE (bool IsStruct() const)

	INLINE (bool IsSpecObject()) const

	INLINE (bool IsSpecFunction()) const

	INLINE (bool IsTemplateInfo()) const

	INLINE (bool IsNameDictionary() const)

	INLINE (bool IsSeededNumberDictionary() const)

	INLINE (bool IsUnseededNumberDictionary() const)

	INLINE (bool IsOrderedHashSet() const)

	INLINE (bool IsOrderedHashMap() const)

bool	IsCallable () const

	INLINE (bool IsUndefined() const)

	INLINE (bool IsNull() const)

	INLINE (bool IsTheHole() const)

	INLINE (bool IsException() const)

	INLINE (bool IsUninitialized() const)

	INLINE (bool IsTrue() const)

	INLINE (bool IsFalse() const)

	INLINE (bool IsArgumentsMarker() const)

	INLINE (bool IsFiller() const)

double	Number ()

	INLINE (bool IsNaN() const)

	INLINE (bool IsMinusZero() const)

bool	ToInt32 (int32_t *value)

bool	ToUint32 (uint32_t *value)

Representation	OptimalRepresentation ()

bool	FitsRepresentation (Representation representation)

Handle< HeapType >	OptimalType (Isolate *isolate, Representation representation)

bool	HasValidElements ()

bool	HasSpecificClassOf (String *name)

bool	BooleanValue ()

Object *	GetHash ()

bool	SameValue (Object *other)

bool	SameValueZero (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 void	SetValueInferType (Handle< PropertyCell > cell, Handle< Object > value)

static Handle< HeapType >	UpdatedType (Handle< PropertyCell > cell, Handle< Object > value)

static void	AddDependentCompilationInfo (Handle< PropertyCell > cell, CompilationInfo *info)

Static Public Member Functions inherited from v8::internal::Cell
static Cell *	FromValueAddress (Address value)

Static Public Member Functions inherited from v8::internal::HeapObject
static HeapObject *	FromAddress (Address address)

static Object **	RawField (HeapObject *obj, int offset)

static void	UpdateMapCodeCache (Handle< HeapObject > object, Handle< Name > name, Handle< Code > code)

Static Public Member Functions inherited from v8::internal::Object
static Handle< Object >	NewStorageFor (Isolate *isolate, Handle< Object > object, Representation representation)

static Handle< Object >	WrapForRead (Isolate *isolate, Handle< Object > object, Representation representation)

static MaybeHandle< JSReceiver >	ToObject (Isolate *isolate, Handle< Object > object)

static MaybeHandle< JSReceiver >	ToObject (Isolate *isolate, Handle< Object > object, Handle< Context > context)

static MUST_USE_RESULT MaybeHandle< Smi >	ToSmi (Isolate *isolate, Handle< Object > object)

static MUST_USE_RESULT MaybeHandle< Object >	GetProperty (LookupIterator *it)

static MUST_USE_RESULT MaybeHandle< Object >	SetProperty (Handle< Object > object, Handle< Name > key, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode=MAY_BE_STORE_FROM_KEYED)

static MUST_USE_RESULT MaybeHandle< Object >	SetProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode, StorePropertyMode data_store_mode=NORMAL_PROPERTY)

static MUST_USE_RESULT MaybeHandle< Object >	WriteToReadOnlyProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode)

static Handle< Object >	SetDataProperty (LookupIterator *it, Handle< Object > value)

static MUST_USE_RESULT MaybeHandle< Object >	AddDataProperty (LookupIterator *it, Handle< Object > value, PropertyAttributes attributes, StrictMode strict_mode, StoreFromKeyed store_mode)

static MUST_USE_RESULT MaybeHandle< Object >	GetPropertyOrElement (Handle< Object > object, Handle< Name > key)

static MUST_USE_RESULT MaybeHandle< Object >	GetProperty (Isolate isolate, Handle< Object > object, const char key)

static MUST_USE_RESULT MaybeHandle< Object >	GetProperty (Handle< Object > object, Handle< Name > key)

static MUST_USE_RESULT MaybeHandle< Object >	GetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< JSObject > holder, Handle< Object > structure)

static MUST_USE_RESULT MaybeHandle< Object >	SetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< Object > value, Handle< JSObject > holder, Handle< Object > structure, StrictMode strict_mode)

static MUST_USE_RESULT MaybeHandle< Object >	GetPropertyWithDefinedGetter (Handle< Object > receiver, Handle< JSReceiver > getter)

static MUST_USE_RESULT MaybeHandle< Object >	SetPropertyWithDefinedSetter (Handle< Object > receiver, Handle< JSReceiver > setter, Handle< Object > value)

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

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

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

Static Public Attributes
static const int	kTypeOffset = kValueOffset + kPointerSize

static const int	kDependentCodeOffset = kTypeOffset + kPointerSize

static const int	kSize = kDependentCodeOffset + kPointerSize

static const int	kPointerFieldsBeginOffset = kValueOffset

static const int	kPointerFieldsEndOffset = kDependentCodeOffset

Static Public Attributes inherited from v8::internal::Cell
static const int	kValueOffset = HeapObject::kHeaderSize

static const int	kSize = kValueOffset + kPointerSize

Static Public Attributes inherited from v8::internal::HeapObject
static const int	kMapOffset = Object::kHeaderSize

static const int	kHeaderSize = kMapOffset + kPointerSize

Static Public Attributes inherited from v8::internal::Object
static const int	kHeaderSize = 0

Private Member Functions
	DISALLOW_IMPLICIT_CONSTRUCTORS (PropertyCell)

Additional Inherited Members
Protected Member Functions inherited from v8::internal::HeapObject
void	IteratePointers (ObjectVisitor *v, int start, int end)

void	IteratePointer (ObjectVisitor *v, int offset)

void	IterateNextCodeLink (ObjectVisitor *v, int offset)

Detailed Description

Definition at line 9458 of file objects.h.

Member Typedef Documentation

◆ BodyDescriptor

typedef FixedBodyDescriptor<kValueOffset, kSize, kSize> v8::internal::PropertyCell::BodyDescriptor

Definition at line 9503 of file objects.h.

Member Function Documentation

◆ AddDependentCompilationInfo()

void v8::internal::PropertyCell::AddDependentCompilationInfo	(	Handle< PropertyCell >	cell,
		CompilationInfo *	info
	)

static

Definition at line 16378 of file objects.cc.

                                                                       {
   Handle<DependentCode> codes =
       DependentCode::Insert(handle(cell->dependent_code(), info->isolate()),
                             DependentCode::kPropertyCellChangedGroup,
                             info->object_wrapper());
   if (*codes != cell->dependent_code()) cell->set_dependent_code(*codes);
   info->dependencies(DependentCode::kPropertyCellChangedGroup)->Add(
       cell, info->zone());
 }

References v8::internal::CompilationInfo::dependencies(), v8::internal::handle(), v8::internal::DependentCode::Insert(), v8::internal::CompilationInfo::isolate(), v8::internal::DependentCode::kPropertyCellChangedGroup, v8::internal::CompilationInfo::object_wrapper(), and v8::internal::CompilationInfo::zone().

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◆ DISALLOW_IMPLICIT_CONSTRUCTORS()

v8::internal::PropertyCell::DISALLOW_IMPLICIT_CONSTRUCTORS ( PropertyCell )

private

◆ set_type()

void v8::internal::PropertyCell::set_type	(	HeapType *	value,
		WriteBarrierMode	mode = `UPDATE_WRITE_BARRIER`
	)

Definition at line 16342 of file objects.cc.

                                                                     {
   DCHECK(IsPropertyCell());
   set_type_raw(type, ignored);
 }

References DCHECK, and type().

Referenced by v8::internal::Heap::AllocatePropertyCell().

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◆ SetValueInferType()

void v8::internal::PropertyCell::SetValueInferType	(	Handle< PropertyCell >	cell,
		Handle< Object >	value
	)

static

Definition at line 16367 of file objects.cc.

                                                            {
   cell->set_value(*value);
   if (!HeapType::Any()->Is(cell->type())) {
     Handle<HeapType> new_type = UpdatedType(cell, value);
     cell->set_type(*new_type);
   }
 }

References v8::internal::Is(), and UpdatedType().

Referenced by v8::internal::JSObject::DeleteNormalizedProperty(), and v8::internal::JSObject::SetNormalizedProperty().

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◆ type()

HeapType * v8::internal::PropertyCell::type ( )

Definition at line 16337 of file objects.cc.

                              {
   return static_cast<HeapType*>(type_raw());
 }

Referenced by v8::internal::V8HeapExplorer::ExtractPropertyCellReferences(), and set_type().

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◆ TypeAddress()

Address v8::internal::PropertyCell::TypeAddress ( )

inline

Definition at line 9485 of file objects.h.

                                {
     return address() + kTypeOffset;
   }

Referenced by v8::internal::Heap::Scavenge().

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◆ UpdatedType()

Handle< HeapType > v8::internal::PropertyCell::UpdatedType	(	Handle< PropertyCell >	cell,
		Handle< Object >	value
	)

static

Definition at line 16348 of file objects.cc.

                                                                  {
   Isolate* isolate = cell->GetIsolate();
   Handle<HeapType> old_type(cell->type(), isolate);
   Handle<HeapType> new_type = HeapType::Constant(value, isolate);
  
   if (new_type->Is(old_type)) return old_type;
  
   cell->dependent_code()->DeoptimizeDependentCodeGroup(
       isolate, DependentCode::kPropertyCellChangedGroup);
  
   if (old_type->Is(HeapType::None()) || old_type->Is(HeapType::Undefined())) {
     return new_type;
   }
  
   return HeapType::Any(isolate);
 }

References v8::internal::TypeImpl< Config >::Constant(), v8::internal::DependentCode::kPropertyCellChangedGroup, v8::None, and v8::Undefined().

Referenced by v8::internal::StoreIC::CompileHandler(), and SetValueInferType().

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Member Data Documentation

◆ kDependentCodeOffset

const int v8::internal::PropertyCell::kDependentCodeOffset = kTypeOffset + kPointerSize

static

Definition at line 9495 of file objects.h.

Referenced by v8::internal::V8HeapExplorer::ExtractPropertyCellReferences().

◆ kPointerFieldsBeginOffset

const int v8::internal::PropertyCell::kPointerFieldsBeginOffset = kValueOffset

static

Definition at line 9498 of file objects.h.

◆ kPointerFieldsEndOffset

const int v8::internal::PropertyCell::kPointerFieldsEndOffset = kDependentCodeOffset

static

Definition at line 9499 of file objects.h.

◆ kSize

const int v8::internal::PropertyCell::kSize = kDependentCodeOffset + kPointerSize

static

Definition at line 9496 of file objects.h.

Referenced by v8::internal::Heap::AllocatePropertyCell(), v8::internal::Heap::CreateInitialMaps(), and v8::internal::PropertyCellSpace::RoundSizeDownToObjectAlignment().

◆ kTypeOffset

const int v8::internal::PropertyCell::kTypeOffset = kValueOffset + kPointerSize

static

Definition at line 9494 of file objects.h.

Referenced by v8::internal::V8HeapExplorer::ExtractPropertyCellReferences().

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

/mnt/V8SourceCode/src/objects.h
/mnt/V8SourceCode/src/objects.cc

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ BodyDescriptor

Member Function Documentation

◆ AddDependentCompilationInfo()

◆ DISALLOW_IMPLICIT_CONSTRUCTORS()

◆ set_type()

◆ SetValueInferType()

◆ type()

◆ TypeAddress()

◆ UpdatedType()

Member Data Documentation

◆ kDependentCodeOffset

◆ kPointerFieldsBeginOffset

◆ kPointerFieldsEndOffset

◆ kSize

◆ kTypeOffset