#include <map.h>

Inheritance diagram for v8::internal::Map:

Collaboration diagram for v8::internal::Map:

Classes
struct	Bits1

struct	Bits2

struct	Bits3

class	BodyDescriptor

class	FieldCounts

Public Member Functions
int	GetInObjectPropertiesStartInWords () const

void	SetInObjectPropertiesStartInWords (int value)

int	GetInObjectProperties () const

int	GetConstructorFunctionIndex () const

void	SetConstructorFunctionIndex (int value)

int	UsedInstanceSize () const

bool	HasOutOfObjectProperties () const

int	UnusedPropertyFields () const

int	UnusedInObjectProperties () const

void	SetInObjectUnusedPropertyFields (int unused_property_fields)

void	SetOutOfObjectUnusedPropertyFields (int unused_property_fields)

void	CopyUnusedPropertyFields (Tagged< Map > map)

void	CopyUnusedPropertyFieldsAdjustedForInstanceSize (Tagged< Map > map)

void	AccountAddedPropertyField ()

void	AccountAddedOutOfObjectPropertyField (int unused_in_property_array)

V8_INLINE void	clear_padding ()

void	StartInobjectSlackTracking ()

bool	IsInobjectSlackTrackingInProgress () const

void	InobjectSlackTrackingStep (Isolate *isolate)

int	ComputeMinObjectSlack (Isolate *isolate)

int	InstanceSizeFromSlack (int slack) const

bool	is_abandoned_prototype_map () const

bool	has_prototype_info () const

bool	TryGetPrototypeInfo (Tagged< PrototypeInfo > *result) const

bool	has_fast_smi_elements () const

bool	has_fast_object_elements () const

bool	has_fast_smi_or_object_elements () const

bool	has_fast_double_elements () const

bool	has_fast_elements () const

bool	has_fast_packed_elements () const

bool	has_sloppy_arguments_elements () const

bool	has_fast_sloppy_arguments_elements () const

bool	has_fast_string_wrapper_elements () const

bool	has_typed_array_or_rab_gsab_typed_array_elements () const

bool	has_any_typed_array_or_wasm_array_elements () const

bool	has_dictionary_elements () const

bool	has_any_nonextensible_elements () const

bool	has_nonextensible_elements () const

bool	has_sealed_elements () const

bool	has_frozen_elements () const

bool	has_shared_array_elements () const

bool	IsDetached (Isolate *isolate) const

bool	ShouldCheckForReadOnlyElementsInPrototypeChain (Isolate *isolate)

Tagged< Map >	ElementsTransitionMap (Isolate *isolate, ConcurrencyMode cmode)

Tagged< FixedArrayBase >	GetInitialElements () const

	DECL_ACCESSORS (raw_transitions, Tagged< UnionOf< Smi, MaybeWeak< Map >, TransitionArray > >) DECL_RELEASE_ACQUIRE_ACCESSORS(raw_transitions

Tagged< UnionOf< Smi, MaybeWeak< Map >, TransitionArray > >	DECL_RELEASE_ACQUIRE_ACCESSORS (prototype_info, Tagged< UnionOf< Smi, PrototypeInfo > >) static DirectHandle< PrototypeInfo > GetOrCreatePrototypeInfo(DirectHandle< JSObject > prototype

bool	should_be_fast_prototype_map () const

Tagged< Map >	GetPrototypeChainRootMap (Isolate *isolate) const

V8_EXPORT_PRIVATE Tagged< Map >	FindRootMap (PtrComprCageBase cage_base) const

V8_EXPORT_PRIVATE Tagged< Map >	FindFieldOwner (PtrComprCageBase cage_base, InternalIndex descriptor) const

int	GetInObjectPropertyOffset (int index) const

FieldCounts	GetFieldCounts () const

int	NumberOfFields (ConcurrencyMode cmode) const

bool	InstancesNeedRewriting (Tagged< Map > target, ConcurrencyMode cmode) const

bool	InstancesNeedRewriting (Tagged< Map > target, int target_number_of_fields, int target_inobject, int target_unused, int *old_number_of_fields, ConcurrencyMode cmode) const

void	init_prototype_and_constructor_or_back_pointer (ReadOnlyRoots roots)

void	SetConstructor (Tagged< Object > constructor, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)

Tagged< Object >	TryGetConstructor (PtrComprCageBase cage_base, int max_steps)

void	SetBackPointer (Tagged< HeapObject > value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)

bool	TryGetBackPointer (PtrComprCageBase cage_base, Tagged< Map > *back_pointer) const

V8_EXPORT_PRIVATE void	SetInstanceDescriptors (Isolate *isolate, Tagged< DescriptorArray > descriptors, int number_of_own_descriptors, WriteBarrierMode barrier_mode=UPDATE_WRITE_BARRIER)

void	UpdateDescriptors (Isolate *isolate, Tagged< DescriptorArray > descriptors, int number_of_own_descriptors)

void	InitializeDescriptors (Isolate *isolate, Tagged< DescriptorArray > descriptors)

bool	IsPrototypeValidityCellValid () const

bool	BelongsToSameNativeContextAs (Tagged< Map > other_map) const

bool	BelongsToSameNativeContextAs (Tagged< Context > context) const

Tagged< Name >	GetLastDescriptorName (Isolate *isolate) const

PropertyDetails	GetLastDescriptorDetails (Isolate *isolate) const

InternalIndex	LastAdded () const

int	NumberOfOwnDescriptors () const

void	SetNumberOfOwnDescriptors (int number)

InternalIndex::Range	IterateOwnDescriptors () const

Tagged< Cell >	RetrieveDescriptorsPointer ()

bool	OnlyHasSimpleProperties () const

int	EnumLength () const

void	SetEnumLength (int length)

void	mark_unstable ()

bool	is_stable () const

bool	CanBeDeprecated () const

bool	TooManyFastProperties (StoreOrigin store_origin) const

void	AppendDescriptor (Isolate isolate, Descriptor desc)

int	NextFreePropertyIndex () const

int	NumberOfEnumerableProperties () const

int	Hash (Isolate *isolate, Tagged< HeapObject > prototype)

V8_EXPORT_PRIVATE Tagged< Map >	FindElementsKindTransitionedMap (Isolate *isolate, MapHandlesSpan candidates, ConcurrencyMode cmode)

bool	CanTransition () const

bool	IsMapInArrayPrototypeChain (Isolate *isolate) const

void	MapPrint (std::ostream &os)

bool	EquivalentToForNormalization (const Tagged< Map > other, ElementsKind elements_kind, Tagged< HeapObject > prototype, PropertyNormalizationMode mode) const

bool	EquivalentToForNormalization (const Tagged< Map > other, PropertyNormalizationMode mode) const

void	PrintMapDetails (std::ostream &os)

void	NotifyLeafMapLayoutChange (Isolate *isolate)

bool	CanHaveFastTransitionableElementsKind () const

uint8_t	WasmByte1 () const

uint8_t	WasmByte2 () const

void	SetWasmByte1 (uint8_t value)

void	SetWasmByte2 (uint8_t value)

Static Public Member Functions
static std::optional< Tagged< JSFunction > >	GetConstructorFunction (Tagged< Map > map, Tagged< Context > native_context)

static DirectHandle< PrototypeInfo >	GetOrCreatePrototypeInfo (DirectHandle< Map > prototype_map, Isolate *isolate)

static void	SetShouldBeFastPrototypeMap (DirectHandle< Map > map, bool value, Isolate *isolate)

static Handle< UnionOf< Smi, Cell > >	GetOrCreatePrototypeChainValidityCell (DirectHandle< Map > map, Isolate *isolate)

static bool	IsPrototypeChainInvalidated (Tagged< Map > map)

static bool	IsMostGeneralFieldType (Representation representation, Tagged< FieldType > field_type)

static void	GeneralizeIfCanHaveTransitionableFastElementsKind (Isolate isolate, InstanceType instance_type, Representation representation, DirectHandle< FieldType > *field_type)

static V8_EXPORT_PRIVATE DirectHandle< Map >	PrepareForDataProperty (Isolate *isolate, DirectHandle< Map > old_map, InternalIndex descriptor_number, PropertyConstness constness, DirectHandle< Object > value)

static V8_EXPORT_PRIVATE Handle< Map >	Normalize (Isolate isolate, DirectHandle< Map > map, ElementsKind new_elements_kind, DirectHandle< JSPrototype > new_prototype, PropertyNormalizationMode mode, bool use_cache, const char reason)

static V8_EXPORT_PRIVATE Handle< Map >	Normalize (Isolate isolate, DirectHandle< Map > map, ElementsKind new_elements_kind, DirectHandle< JSPrototype > new_prototype, PropertyNormalizationMode mode, const char reason)

static Handle< Map >	Normalize (Isolate isolate, DirectHandle< Map > fast_map, PropertyNormalizationMode mode, const char reason)

static V8_EXPORT_PRIVATE void	SetPrototype (Isolate *isolate, DirectHandle< Map > map, DirectHandle< JSPrototype > prototype, bool enable_prototype_setup_mode=true)

static V8_EXPORT_PRIVATE MaybeHandle< Map >	TryUpdate (Isolate *isolate, Handle< Map > map) V8_WARN_UNUSED_RESULT

static V8_EXPORT_PRIVATE DirectHandle< Map >	Update (Isolate *isolate, DirectHandle< Map > map)

static Handle< Map >	CopyInitialMap (Isolate *isolate, DirectHandle< Map > map)

static V8_EXPORT_PRIVATE Handle< Map >	CopyInitialMap (Isolate *isolate, DirectHandle< Map > map, int instance_size, int in_object_properties, int unused_property_fields)

static DirectHandle< Map >	CopyInitialMapNormalized (Isolate *isolate, DirectHandle< Map > map, PropertyNormalizationMode mode=CLEAR_INOBJECT_PROPERTIES)

static Handle< Map >	CopyDropDescriptors (Isolate *isolate, DirectHandle< Map > map)

static V8_EXPORT_PRIVATE Handle< Map >	CopyInsertDescriptor (Isolate isolate, DirectHandle< Map > map, Descriptor descriptor, TransitionFlag flag)

static MaybeObjectDirectHandle	WrapFieldType (DirectHandle< FieldType > type)

static V8_EXPORT_PRIVATE Tagged< FieldType >	UnwrapFieldType (Tagged< MaybeObject > wrapped_type)

V8_EXPORT_PRIVATE static V8_WARN_UNUSED_RESULT MaybeHandle< Map >	CopyWithField (Isolate *isolate, DirectHandle< Map > map, DirectHandle< Name > name, DirectHandle< FieldType > type, PropertyAttributes attributes, PropertyConstness constness, Representation representation, TransitionFlag flag)

V8_EXPORT_PRIVATE static V8_WARN_UNUSED_RESULT MaybeHandle< Map >	CopyWithConstant (Isolate *isolate, DirectHandle< Map > map, DirectHandle< Name > name, DirectHandle< Object > constant, PropertyAttributes attributes, TransitionFlag flag)

static DirectHandle< Map >	TransitionElementsTo (Isolate *isolate, DirectHandle< Map > map, ElementsKind to_kind)

static std::optional< Tagged< Map > >	TryAsElementsKind (Isolate *isolate, DirectHandle< Map > map, ElementsKind kind, ConcurrencyMode cmode)

static V8_EXPORT_PRIVATE Handle< Map >	AsElementsKind (Isolate *isolate, DirectHandle< Map > map, ElementsKind kind)

static Handle< Map >	CopyAsElementsKind (Isolate *isolate, DirectHandle< Map > map, ElementsKind kind, TransitionFlag flag)

static DirectHandle< Map >	AsLanguageMode (Isolate *isolate, DirectHandle< Map > initial_map, DirectHandle< SharedFunctionInfo > shared_info)

static V8_EXPORT_PRIVATE Handle< Map >	CopyForPreventExtensions (Isolate isolate, DirectHandle< Map > map, PropertyAttributes attrs_to_add, DirectHandle< Symbol > transition_marker, const char reason, bool old_map_is_dictionary_elements_kind=false)

static V8_EXPORT_PRIVATE DirectHandle< Map >	TransitionToDataProperty (Isolate *isolate, DirectHandle< Map > map, DirectHandle< Name > name, DirectHandle< Object > value, PropertyAttributes attributes, PropertyConstness constness, StoreOrigin store_origin)

static V8_EXPORT_PRIVATE DirectHandle< Map >	TransitionToAccessorProperty (Isolate *isolate, DirectHandle< Map > map, DirectHandle< Name > name, InternalIndex descriptor, DirectHandle< Object > getter, DirectHandle< Object > setter, PropertyAttributes attributes)

static Handle< Map >	CopyForElementsTransition (Isolate *isolate, DirectHandle< Map > map)

static Handle< Map >	CopyForPrototypeTransition (Isolate *isolate, DirectHandle< Map > map, DirectHandle< JSPrototype > prototype)

static Handle< Map >	Copy (Isolate isolate, DirectHandle< Map > map, const char reason, TransitionKindFlag kind=SPECIAL_TRANSITION)

static V8_EXPORT_PRIVATE Handle< Map >	Create (Isolate *isolate, int inobject_properties)

static int	SlackForArraySize (int old_size, int size_limit)

static V8_EXPORT_PRIVATE void	EnsureDescriptorSlack (Isolate *isolate, DirectHandle< Map > map, int slack)

static DirectHandle< Map >	GetObjectCreateMap (Isolate *isolate, DirectHandle< JSPrototype > prototype)

static Handle< Map >	GetDerivedMap (Isolate *isolate, DirectHandle< Map > from, DirectHandle< JSReceiver > prototype)

static constexpr std::optional< RootIndex >	TryGetMapRootIdxFor (InstanceType type)

static Tagged< Map >	GetMapFor (ReadOnlyRoots roots, InstanceType type)

static constexpr ObjectFields	ObjectFieldsFrom (VisitorId visitor_id)

static V8_EXPORT_PRIVATE Handle< Map >	TransitionRootMapToPrototypeForNewObject (Isolate *isolate, DirectHandle< Map > map, DirectHandle< JSPrototype > prototype)

static V8_EXPORT_PRIVATE Handle< Map >	TransitionToUpdatePrototype (Isolate *isolate, DirectHandle< Map > map, DirectHandle< JSPrototype > prototype)

static DirectHandle< Map >	TransitionToImmutableProto (Isolate *isolate, DirectHandle< Map > map)

static DirectHandle< Map >	AddMissingTransitionsForTesting (Isolate *isolate, DirectHandle< Map > split_map, DirectHandle< DescriptorArray > descriptors)

static V8_EXPORT_PRIVATE VisitorId	GetVisitorId (Tagged< Map > map)

static bool	CanHaveFastTransitionableElementsKind (InstanceType instance_type)

Public Attributes
Tagged< UnionOf< Smi, MaybeWeak< Map >, TransitionArray > > Isolate *	isolate

Static Public Attributes
static const int	kNoConstructorFunctionIndex = 0

static const int	kSlackTrackingCounterStart = 7

static const int	kSlackTrackingCounterEnd = 1

static const int	kNoSlackTracking = 0

static const int	kGenerousAllocationCount

static constexpr int	kPrototypeChainValid = 0

static constexpr int	kPrototypeChainInvalid = 1

static constexpr Tagged< Smi >	kPrototypeChainValidSmi = Smi::zero()

Private Member Functions
Tagged< Map >	LookupElementsTransitionMap (Isolate *isolate, ElementsKind elements_kind, ConcurrencyMode cmode)

Tagged< Map >	TryReplayPropertyTransitions (Isolate *isolate, Tagged< Map > map, ConcurrencyMode cmode)

bool	EquivalentToForTransition (const Tagged< Map > other, ConcurrencyMode cmode, DirectHandle< HeapObject > new_prototype={}) const

bool	EquivalentToForElementsKindTransition (const Tagged< Map > other, ConcurrencyMode cmode) const

void	DeprecateTransitionTree (Isolate *isolate)

void	ReplaceDescriptors (Isolate *isolate, Tagged< DescriptorArray > new_descriptors)

Static Private Member Functions
static void	ConnectTransition (Isolate *isolate, DirectHandle< Map > parent, DirectHandle< Map > child, DirectHandle< Name > name, TransitionKindFlag transition_kind, bool force_connect=false)

static Handle< Map >	RawCopy (Isolate *isolate, DirectHandle< Map > map, int instance_size, int inobject_properties)

static Handle< Map >	ShareDescriptor (Isolate isolate, DirectHandle< Map > map, DirectHandle< DescriptorArray > descriptors, Descriptor descriptor)

static V8_EXPORT_PRIVATE Handle< Map >	AddMissingTransitions (Isolate *isolate, DirectHandle< Map > map, DirectHandle< DescriptorArray > descriptors)

static void	InstallDescriptors (Isolate *isolate, DirectHandle< Map > parent_map, DirectHandle< Map > child_map, InternalIndex new_descriptor, DirectHandle< DescriptorArray > descriptors, bool force_connect=false)

static Handle< Map >	CopyAddDescriptor (Isolate isolate, DirectHandle< Map > map, Descriptor descriptor, TransitionFlag flag)

static Handle< Map >	CopyReplaceDescriptors (Isolate isolate, DirectHandle< Map > map, DirectHandle< DescriptorArray > descriptors, TransitionFlag flag, MaybeDirectHandle< Name > maybe_name, const char reason, TransitionKindFlag transition_kind)

static Handle< Map >	CopyReplaceDescriptor (Isolate isolate, DirectHandle< Map > map, DirectHandle< DescriptorArray > descriptors, Descriptor descriptor, InternalIndex index, TransitionFlag flag)

static Handle< Map >	CopyNormalized (Isolate *isolate, DirectHandle< Map > map, PropertyNormalizationMode mode)

static V8_INLINE bool	ConcurrentIsHeapObjectWithMap (PtrComprCageBase cage_base, Tagged< Object > object, Tagged< Map > meta_map)

Friends
class	MapUpdater

template<typename ConcreteVisitor >
class	MarkingVisitorBase

Detailed Description

Definition at line 234 of file map.h.

Member Function Documentation

◆ AccountAddedOutOfObjectPropertyField()

void v8::internal::Map::AccountAddedOutOfObjectPropertyField ( int unused_in_property_array )

inline

Definition at line 500 of file map-inl.h.

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◆ AccountAddedPropertyField()

void v8::internal::Map::AccountAddedPropertyField ( )

inline

Definition at line 479 of file map-inl.h.

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◆ AddMissingTransitions()

Handle< Map > v8::internal::Map::AddMissingTransitions	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< DescriptorArray >	descriptors )

staticprivate

Definition at line 1618 of file map.cc.

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◆ AddMissingTransitionsForTesting()

DirectHandle< Map > v8::internal::Map::AddMissingTransitionsForTesting	(	Isolate *	isolate,
		DirectHandle< Map >	split_map,
		DirectHandle< DescriptorArray >	descriptors )

inlinestatic

Definition at line 367 of file map-inl.h.

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◆ AppendDescriptor()

void v8::internal::Map::AppendDescriptor	(	Isolate *	isolate,
		Descriptor *	desc )

inline

Definition at line 777 of file map-inl.h.

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◆ AsElementsKind()

Handle< Map > v8::internal::Map::AsElementsKind	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		ElementsKind	kind )

static

Definition at line 1163 of file map.cc.

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◆ AsLanguageMode()

DirectHandle< Map > v8::internal::Map::AsLanguageMode	(	Isolate *	isolate,
		DirectHandle< Map >	initial_map,
		DirectHandle< SharedFunctionInfo >	shared_info )

static

Definition at line 1734 of file map.cc.

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◆ BelongsToSameNativeContextAs() [1/2]

bool v8::internal::Map::BelongsToSameNativeContextAs ( Tagged< Context > context ) const

inline

Definition at line 922 of file map-inl.h.

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◆ BelongsToSameNativeContextAs() [2/2]

bool v8::internal::Map::BelongsToSameNativeContextAs ( Tagged< Map > other_map ) const

inline

Definition at line 913 of file map-inl.h.

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◆ CanBeDeprecated()

bool v8::internal::Map::CanBeDeprecated ( ) const

inline

Definition at line 709 of file map-inl.h.

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◆ CanHaveFastTransitionableElementsKind() [1/2]

bool v8::internal::Map::CanHaveFastTransitionableElementsKind ( ) const

inline

Definition at line 169 of file map-inl.h.

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◆ CanHaveFastTransitionableElementsKind() [2/2]

bool v8::internal::Map::CanHaveFastTransitionableElementsKind ( InstanceType instance_type )

inlinestatic

Definition at line 163 of file map-inl.h.

◆ CanTransition()

bool v8::internal::Map::CanTransition ( ) const

inline

Definition at line 729 of file map-inl.h.

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◆ clear_padding()

void v8::internal::Map::clear_padding ( )

Definition at line 770 of file map-inl.h.

◆ ComputeMinObjectSlack()

int v8::internal::Map::ComputeMinObjectSlack ( Isolate * isolate )

Definition at line 2350 of file map.cc.

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◆ ConcurrentIsHeapObjectWithMap()

bool v8::internal::Map::ConcurrentIsHeapObjectWithMap	(	PtrComprCageBase	cage_base,
		Tagged< Object >	object,
		Tagged< Map >	meta_map )

staticprivate

Definition at line 810 of file map-inl.h.

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◆ ConnectTransition()

void v8::internal::Map::ConnectTransition	(	Isolate *	isolate,
		DirectHandle< Map >	parent,
		DirectHandle< Map >	child,
		DirectHandle< Name >	name,
		TransitionKindFlag	transition_kind,
		bool	force_connect = false )

staticprivate

Definition at line 1534 of file map.cc.

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◆ Copy()

Handle< Map > v8::internal::Map::Copy	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		const char *	reason,
		TransitionKindFlag	kind = SPECIAL_TRANSITION )

static

Definition at line 1811 of file map.cc.

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◆ CopyAddDescriptor()

Handle< Map > v8::internal::Map::CopyAddDescriptor	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		Descriptor *	descriptor,
		TransitionFlag	flag )

staticprivate

Definition at line 2186 of file map.cc.

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◆ CopyAsElementsKind()

Handle< Map > v8::internal::Map::CopyAsElementsKind	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		ElementsKind	kind,
		TransitionFlag	flag )

static

Definition at line 1688 of file map.cc.

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◆ CopyDropDescriptors()

Handle< Map > v8::internal::Map::CopyDropDescriptors	(	Isolate *	isolate,
		DirectHandle< Map >	map )

static

Definition at line 1480 of file map.cc.

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◆ CopyForElementsTransition()

Handle< Map > v8::internal::Map::CopyForElementsTransition	(	Isolate *	isolate,
		DirectHandle< Map >	map )

static

Definition at line 1775 of file map.cc.

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◆ CopyForPreventExtensions()

Handle< Map > v8::internal::Map::CopyForPreventExtensions	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		PropertyAttributes	attrs_to_add,
		DirectHandle< Symbol >	transition_marker,
		const char *	reason,
		bool	old_map_is_dictionary_elements_kind = false )

static

Definition at line 1852 of file map.cc.

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◆ CopyForPrototypeTransition()

Handle< Map > v8::internal::Map::CopyForPrototypeTransition	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< JSPrototype >	prototype )

static

Definition at line 1800 of file map.cc.

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◆ CopyInitialMap() [1/2]

Handle< Map > v8::internal::Map::CopyInitialMap	(	Isolate *	isolate,
		DirectHandle< Map >	map )

inlinestatic

Definition at line 1008 of file map-inl.h.

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◆ CopyInitialMap() [2/2]

Handle< Map > v8::internal::Map::CopyInitialMap	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		int	instance_size,
		int	in_object_properties,
		int	unused_property_fields )

static

Definition at line 1455 of file map.cc.

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◆ CopyInitialMapNormalized()

DirectHandle< Map > v8::internal::Map::CopyInitialMapNormalized	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		PropertyNormalizationMode	mode = CLEAR_INOBJECT_PROPERTIES )

static

Definition at line 1448 of file map.cc.

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◆ CopyInsertDescriptor()

Handle< Map > v8::internal::Map::CopyInsertDescriptor	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		Descriptor *	descriptor,
		TransitionFlag	flag )

static

Definition at line 2209 of file map.cc.

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◆ CopyNormalized()

Handle< Map > v8::internal::Map::CopyNormalized	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		PropertyNormalizationMode	mode )

staticprivate

Definition at line 1378 of file map.cc.

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◆ CopyReplaceDescriptor()

Handle< Map > v8::internal::Map::CopyReplaceDescriptor	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< DescriptorArray >	descriptors,
		Descriptor *	descriptor,
		InternalIndex	index,
		TransitionFlag	flag )

staticprivate

Definition at line 2225 of file map.cc.

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◆ CopyReplaceDescriptors()

Handle< Map > v8::internal::Map::CopyReplaceDescriptors	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< DescriptorArray >	descriptors,
		TransitionFlag	flag,
		MaybeDirectHandle< Name >	maybe_name,
		const char *	reason,
		TransitionKindFlag	transition_kind )

staticprivate

Definition at line 1564 of file map.cc.

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◆ CopyUnusedPropertyFields()

void v8::internal::Map::CopyUnusedPropertyFields ( Tagged< Map > map )

inline

Definition at line 462 of file map-inl.h.

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◆ CopyUnusedPropertyFieldsAdjustedForInstanceSize()

void v8::internal::Map::CopyUnusedPropertyFieldsAdjustedForInstanceSize ( Tagged< Map > map )

inline

Definition at line 468 of file map-inl.h.

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◆ CopyWithConstant()

MaybeHandle< Map > v8::internal::Map::CopyWithConstant	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< Name >	name,
		DirectHandle< Object >	constant,
		PropertyAttributes	attributes,
		TransitionFlag	flag )

static

Definition at line 541 of file map.cc.

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◆ CopyWithField()

MaybeHandle< Map > v8::internal::Map::CopyWithField	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< Name >	name,
		DirectHandle< FieldType >	type,
		PropertyAttributes	attributes,
		PropertyConstness	constness,
		Representation	representation,
		TransitionFlag	flag )

static

Definition at line 504 of file map.cc.

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◆ Create()

Handle< Map > v8::internal::Map::Create	(	Isolate *	isolate,
		int	inobject_properties )

static

Definition at line 1824 of file map.cc.

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◆ DECL_ACCESSORS()

v8::internal::Map::DECL_ACCESSORS	(	raw_transitions	,
		Tagged< UnionOf< Smi, MaybeWeak< Map >, TransitionArray > >	)

◆ DECL_RELEASE_ACQUIRE_ACCESSORS()

Tagged< UnionOf< Smi, MaybeWeak< Map >, TransitionArray > > v8::internal::Map::DECL_RELEASE_ACQUIRE_ACCESSORS	(	prototype_info	,
		Tagged< UnionOf< Smi, PrototypeInfo > >	)

◆ DeprecateTransitionTree()

void v8::internal::Map::DeprecateTransitionTree ( Isolate * isolate )

private

Definition at line 642 of file map.cc.

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◆ ElementsTransitionMap()

Tagged< Map > v8::internal::Map::ElementsTransitionMap	(	Isolate *	isolate,
		ConcurrencyMode	cmode )

inline

Definition at line 861 of file map-inl.h.

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◆ EnsureDescriptorSlack()

void v8::internal::Map::EnsureDescriptorSlack	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		int	slack )

static

Definition at line 850 of file map.cc.

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◆ EnumLength()

int v8::internal::Map::EnumLength ( ) const

inline

Definition at line 249 of file map-inl.h.

◆ EquivalentToForElementsKindTransition()

bool v8::internal::Map::EquivalentToForElementsKindTransition	(	const Tagged< Map >	other,
		ConcurrencyMode	cmode ) const

private

Definition at line 2308 of file map.cc.

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◆ EquivalentToForNormalization() [1/2]

bool v8::internal::Map::EquivalentToForNormalization	(	const Tagged< Map >	other,
		ElementsKind	elements_kind,
		Tagged< HeapObject >	prototype,
		PropertyNormalizationMode	mode ) const

Definition at line 2331 of file map.cc.

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◆ EquivalentToForNormalization() [2/2]

bool v8::internal::Map::EquivalentToForNormalization	(	const Tagged< Map >	other,
		PropertyNormalizationMode	mode ) const

inline

Definition at line 201 of file map-inl.h.

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◆ EquivalentToForTransition()

bool v8::internal::Map::EquivalentToForTransition	(	const Tagged< Map >	other,
		ConcurrencyMode	cmode,
		DirectHandle< HeapObject >	new_prototype = {} ) const

private

Definition at line 2279 of file map.cc.

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◆ FindElementsKindTransitionedMap()

Tagged< Map > v8::internal::Map::FindElementsKindTransitionedMap	(	Isolate *	isolate,
		MapHandlesSpan	candidates,
		ConcurrencyMode	cmode )

Definition at line 982 of file map.cc.

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◆ FindFieldOwner()

Tagged< Map > v8::internal::Map::FindFieldOwner	(	PtrComprCageBase	cage_base,
		InternalIndex	descriptor ) const

Definition at line 716 of file map.cc.

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◆ FindRootMap()

Tagged< Map > v8::internal::Map::FindRootMap ( PtrComprCageBase cage_base ) const

Definition at line 699 of file map.cc.

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◆ GeneralizeIfCanHaveTransitionableFastElementsKind()

void v8::internal::Map::GeneralizeIfCanHaveTransitionableFastElementsKind	(	Isolate *	isolate,
		InstanceType	instance_type,
		Representation *	representation,
		DirectHandle< FieldType > *	field_type )

inlinestatic

Definition at line 180 of file map-inl.h.

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◆ GetConstructorFunction()

std::optional< Tagged< JSFunction > > v8::internal::Map::GetConstructorFunction	(	Tagged< Map >	map,
		Tagged< Context >	native_context )

static

Definition at line 53 of file map.cc.

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◆ GetConstructorFunctionIndex()

int v8::internal::Map::GetConstructorFunctionIndex ( ) const

inline

Definition at line 346 of file map-inl.h.

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◆ GetDerivedMap()

Handle< Map > v8::internal::Map::GetDerivedMap	(	Isolate *	isolate,
		DirectHandle< Map >	from,
		DirectHandle< JSReceiver >	prototype )

static

Definition at line 934 of file map.cc.

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◆ GetFieldCounts()

Map::FieldCounts v8::internal::Map::GetFieldCounts ( ) const

Definition at line 622 of file map.cc.

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◆ GetInitialElements()

Tagged< FixedArrayBase > v8::internal::Map::GetInitialElements ( ) const

inline

Definition at line 262 of file map-inl.h.

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◆ GetInObjectProperties()

int v8::internal::Map::GetInObjectProperties ( ) const

inline

Definition at line 341 of file map-inl.h.

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◆ GetInObjectPropertiesStartInWords()

int v8::internal::Map::GetInObjectPropertiesStartInWords ( ) const

inline

Definition at line 324 of file map-inl.h.

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◆ GetInObjectPropertyOffset()

int v8::internal::Map::GetInObjectPropertyOffset ( int index ) const

inline

Definition at line 363 of file map-inl.h.

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◆ GetLastDescriptorDetails()

PropertyDetails v8::internal::Map::GetLastDescriptorDetails ( Isolate * isolate ) const

inline

Definition at line 222 of file map-inl.h.

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◆ GetLastDescriptorName()

Tagged< Name > v8::internal::Map::GetLastDescriptorName ( Isolate * isolate ) const

inline

Definition at line 218 of file map-inl.h.

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◆ GetMapFor()

Tagged< Map > v8::internal::Map::GetMapFor	(	ReadOnlyRoots	roots,
		InstanceType	type )

inlinestatic

Definition at line 855 of file map-inl.h.

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◆ GetObjectCreateMap()

DirectHandle< Map > v8::internal::Map::GetObjectCreateMap	(	Isolate *	isolate,
		DirectHandle< JSPrototype >	prototype )

static

Definition at line 903 of file map.cc.

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◆ GetOrCreatePrototypeChainValidityCell()

Handle< UnionOf< Smi, Cell > > v8::internal::Map::GetOrCreatePrototypeChainValidityCell	(	DirectHandle< Map >	map,
		Isolate *	isolate )

static

Definition at line 2419 of file map.cc.

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◆ GetOrCreatePrototypeInfo()

DirectHandle< PrototypeInfo > v8::internal::Map::GetOrCreatePrototypeInfo	(	DirectHandle< Map >	prototype_map,
		Isolate *	isolate )

static

Definition at line 2377 of file map.cc.

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◆ GetPrototypeChainRootMap()

Tagged< Map > v8::internal::Map::GetPrototypeChainRootMap ( Isolate * isolate ) const

Definition at line 37 of file map.cc.

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◆ GetVisitorId()

VisitorId v8::internal::Map::GetVisitorId ( Tagged< Map > map )

static

Definition at line 65 of file map.cc.

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◆ has_any_nonextensible_elements()

bool v8::internal::Map::has_any_nonextensible_elements ( ) const

inline

Definition at line 669 of file map-inl.h.

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◆ has_any_typed_array_or_wasm_array_elements()

bool v8::internal::Map::has_any_typed_array_or_wasm_array_elements ( ) const

inline

Definition at line 656 of file map-inl.h.

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◆ has_dictionary_elements()

bool v8::internal::Map::has_dictionary_elements ( ) const

inline

Definition at line 665 of file map-inl.h.

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◆ has_fast_double_elements()

bool v8::internal::Map::has_fast_double_elements ( ) const

inline

Definition at line 628 of file map-inl.h.

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◆ has_fast_elements()

bool v8::internal::Map::has_fast_elements ( ) const

inline

Definition at line 632 of file map-inl.h.

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◆ has_fast_object_elements()

bool v8::internal::Map::has_fast_object_elements ( ) const

inline

Definition at line 620 of file map-inl.h.

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◆ has_fast_packed_elements()

bool v8::internal::Map::has_fast_packed_elements ( ) const

inline

Definition at line 636 of file map-inl.h.

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◆ has_fast_sloppy_arguments_elements()

bool v8::internal::Map::has_fast_sloppy_arguments_elements ( ) const

inline

Definition at line 644 of file map-inl.h.

◆ has_fast_smi_elements()

bool v8::internal::Map::has_fast_smi_elements ( ) const

inline

Definition at line 616 of file map-inl.h.

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◆ has_fast_smi_or_object_elements()

bool v8::internal::Map::has_fast_smi_or_object_elements ( ) const

inline

Definition at line 624 of file map-inl.h.

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◆ has_fast_string_wrapper_elements()

bool v8::internal::Map::has_fast_string_wrapper_elements ( ) const

inline

Definition at line 648 of file map-inl.h.

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◆ has_frozen_elements()

bool v8::internal::Map::has_frozen_elements ( ) const

inline

Definition at line 681 of file map-inl.h.

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◆ has_nonextensible_elements()

bool v8::internal::Map::has_nonextensible_elements ( ) const

inline

Definition at line 673 of file map-inl.h.

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◆ has_prototype_info()

bool v8::internal::Map::has_prototype_info ( ) const

inline

Definition at line 593 of file map-inl.h.

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◆ has_sealed_elements()

bool v8::internal::Map::has_sealed_elements ( ) const

inline

Definition at line 677 of file map-inl.h.

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◆ has_shared_array_elements()

bool v8::internal::Map::has_shared_array_elements ( ) const

inline

Definition at line 685 of file map-inl.h.

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◆ has_sloppy_arguments_elements()

bool v8::internal::Map::has_sloppy_arguments_elements ( ) const

inline

Definition at line 640 of file map-inl.h.

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◆ has_typed_array_or_rab_gsab_typed_array_elements()

bool v8::internal::Map::has_typed_array_or_rab_gsab_typed_array_elements ( ) const

inline

Definition at line 652 of file map-inl.h.

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◆ Hash()

int v8::internal::Map::Hash	(	Isolate *	isolate,
		Tagged< HeapObject >	prototype )

Definition at line 2250 of file map.cc.

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◆ HasOutOfObjectProperties()

bool v8::internal::Map::HasOutOfObjectProperties ( ) const

inline

Definition at line 334 of file map-inl.h.

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◆ init_prototype_and_constructor_or_back_pointer()

void v8::internal::Map::init_prototype_and_constructor_or_back_pointer ( ReadOnlyRoots roots )

inline

◆ InitializeDescriptors()

void v8::internal::Map::InitializeDescriptors	(	Isolate *	isolate,
		Tagged< DescriptorArray >	descriptors )

inline

Definition at line 764 of file map-inl.h.

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◆ InobjectSlackTrackingStep()

void v8::internal::Map::InobjectSlackTrackingStep ( Isolate * isolate )

inline

Definition at line 1018 of file map-inl.h.

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◆ InstallDescriptors()

void v8::internal::Map::InstallDescriptors	(	Isolate *	isolate,
		DirectHandle< Map >	parent_map,
		DirectHandle< Map >	child_map,
		InternalIndex	new_descriptor,
		DirectHandle< DescriptorArray >	descriptors,
		bool	force_connect = false )

staticprivate

Definition at line 1664 of file map.cc.

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◆ InstanceSizeFromSlack()

int v8::internal::Map::InstanceSizeFromSlack ( int slack ) const

inline

Definition at line 1040 of file map-inl.h.

◆ InstancesNeedRewriting() [1/2]

bool v8::internal::Map::InstancesNeedRewriting	(	Tagged< Map >	target,
		ConcurrencyMode	cmode ) const

Definition at line 559 of file map.cc.

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◆ InstancesNeedRewriting() [2/2]

bool v8::internal::Map::InstancesNeedRewriting	(	Tagged< Map >	target,
		int	target_number_of_fields,
		int	target_inobject,
		int	target_unused,
		int *	old_number_of_fields,
		ConcurrencyMode	cmode ) const

Definition at line 571 of file map.cc.

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◆ is_abandoned_prototype_map()

bool v8::internal::Map::is_abandoned_prototype_map ( ) const

inline

Definition at line 583 of file map-inl.h.

◆ is_stable()

bool v8::internal::Map::is_stable ( ) const

inline

Definition at line 705 of file map-inl.h.

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◆ IsDetached()

bool v8::internal::Map::IsDetached ( Isolate * isolate ) const

inline

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

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◆ IsInobjectSlackTrackingInProgress()

bool v8::internal::Map::IsInobjectSlackTrackingInProgress ( ) const

inline

Definition at line 1014 of file map-inl.h.

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◆ IsMapInArrayPrototypeChain()

bool v8::internal::Map::IsMapInArrayPrototypeChain ( Isolate * isolate ) const

Definition at line 1056 of file map.cc.

◆ IsMostGeneralFieldType()

bool v8::internal::Map::IsMostGeneralFieldType	(	Representation	representation,
		Tagged< FieldType >	field_type )

inlinestatic

Definition at line 157 of file map-inl.h.

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◆ IsPrototypeChainInvalidated()

bool v8::internal::Map::IsPrototypeChainInvalidated ( Tagged< Map > map )

static

Definition at line 2456 of file map.cc.

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◆ IsPrototypeValidityCellValid()

bool v8::internal::Map::IsPrototypeValidityCellValid ( ) const

inline

Definition at line 902 of file map-inl.h.

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◆ IterateOwnDescriptors()

InternalIndex::Range v8::internal::Map::IterateOwnDescriptors ( ) const

inline

Definition at line 245 of file map-inl.h.

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◆ LastAdded()

InternalIndex v8::internal::Map::LastAdded ( ) const

inline

Definition at line 226 of file map-inl.h.

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◆ LookupElementsTransitionMap()

Tagged< Map > v8::internal::Map::LookupElementsTransitionMap	(	Isolate *	isolate,
		ElementsKind	elements_kind,
		ConcurrencyMode	cmode )

private

Definition at line 1047 of file map.cc.

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◆ MapPrint()

void v8::internal::Map::MapPrint ( std::ostream & os )

Definition at line 3878 of file objects-printer.cc.

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◆ mark_unstable()

void v8::internal::Map::mark_unstable ( )

inline

Definition at line 700 of file map-inl.h.

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◆ NextFreePropertyIndex()

int v8::internal::Map::NextFreePropertyIndex ( ) const

Definition at line 1189 of file map.cc.

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◆ Normalize() [1/3]

Handle< Map > v8::internal::Map::Normalize	(	Isolate *	isolate,
		DirectHandle< Map >	fast_map,
		PropertyNormalizationMode	mode,
		const char *	reason )

inlinestatic

Definition at line 194 of file map-inl.h.

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◆ Normalize() [2/3]

Handle< Map > v8::internal::Map::Normalize	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		ElementsKind	new_elements_kind,
		DirectHandle< JSPrototype >	new_prototype,
		PropertyNormalizationMode	mode,
		bool	use_cache,
		const char *	reason )

static

Definition at line 1282 of file map.cc.

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◆ Normalize() [3/3]

static V8_EXPORT_PRIVATE Handle< Map > v8::internal::Map::Normalize	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		ElementsKind	new_elements_kind,
		DirectHandle< JSPrototype >	new_prototype,
		PropertyNormalizationMode	mode,
		const char *	reason )

inlinestatic

Definition at line 581 of file map.h.

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◆ NotifyLeafMapLayoutChange()

void v8::internal::Map::NotifyLeafMapLayoutChange ( Isolate * isolate )

inline

Definition at line 721 of file map-inl.h.

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◆ NumberOfEnumerableProperties()

int v8::internal::Map::NumberOfEnumerableProperties ( ) const

Definition at line 1177 of file map.cc.

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◆ NumberOfFields()

int v8::internal::Map::NumberOfFields ( ConcurrencyMode cmode ) const

Definition at line 610 of file map.cc.

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◆ NumberOfOwnDescriptors()

int v8::internal::Map::NumberOfOwnDescriptors ( ) const

inline

Definition at line 232 of file map-inl.h.

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◆ ObjectFieldsFrom()

static constexpr ObjectFields v8::internal::Map::ObjectFieldsFrom ( VisitorId visitor_id )

inlinestaticconstexpr

Definition at line 919 of file map.h.

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◆ OnlyHasSimpleProperties()

bool v8::internal::Map::OnlyHasSimpleProperties ( ) const

Definition at line 1202 of file map.cc.

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◆ PrepareForDataProperty()

DirectHandle< Map > v8::internal::Map::PrepareForDataProperty	(	Isolate *	isolate,
		DirectHandle< Map >	old_map,
		InternalIndex	descriptor_number,
		PropertyConstness	constness,
		DirectHandle< Object >	value )

static

Definition at line 1975 of file map.cc.

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◆ PrintMapDetails()

void v8::internal::Map::PrintMapDetails ( std::ostream & os )

Definition at line 3872 of file objects-printer.cc.

◆ RawCopy()

Handle< Map > v8::internal::Map::RawCopy	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		int	instance_size,
		int	inobject_properties )

staticprivate

Definition at line 1246 of file map.cc.

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◆ ReplaceDescriptors()

void v8::internal::Map::ReplaceDescriptors	(	Isolate *	isolate,
		Tagged< DescriptorArray >	new_descriptors )

private

Definition at line 668 of file map.cc.

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◆ RetrieveDescriptorsPointer()

Tagged< Cell > v8::internal::Map::RetrieveDescriptorsPointer ( )

inline

◆ SetBackPointer()

void v8::internal::Map::SetBackPointer	(	Tagged< HeapObject >	value,
		WriteBarrierMode	mode = UPDATE_WRITE_BARRIER )

inline

Definition at line 845 of file map-inl.h.

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◆ SetConstructor()

void v8::internal::Map::SetConstructor	(	Tagged< Object >	constructor,
		WriteBarrierMode	mode = UPDATE_WRITE_BARRIER )

inline

Definition at line 999 of file map-inl.h.

◆ SetConstructorFunctionIndex()

void v8::internal::Map::SetConstructorFunctionIndex ( int value )

inline

Definition at line 358 of file map-inl.h.

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◆ SetEnumLength()

void v8::internal::Map::SetEnumLength ( int length )

inline

Definition at line 253 of file map-inl.h.

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◆ SetInObjectPropertiesStartInWords()

void v8::internal::Map::SetInObjectPropertiesStartInWords ( int value )

inline

Definition at line 329 of file map-inl.h.

◆ SetInObjectUnusedPropertyFields()

void v8::internal::Map::SetInObjectUnusedPropertyFields ( int unused_property_fields )

inline

Definition at line 438 of file map-inl.h.

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◆ SetInstanceDescriptors()

void v8::internal::Map::SetInstanceDescriptors	(	Isolate *	isolate,
		Tagged< DescriptorArray >	descriptors,
		int	number_of_own_descriptors,
		WriteBarrierMode	barrier_mode = UPDATE_WRITE_BARRIER )

Definition at line 2363 of file map.cc.

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◆ SetNumberOfOwnDescriptors()

void v8::internal::Map::SetNumberOfOwnDescriptors ( int number )

inline

Definition at line 237 of file map-inl.h.

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◆ SetOutOfObjectUnusedPropertyFields()

void v8::internal::Map::SetOutOfObjectUnusedPropertyFields ( int unused_property_fields )

inline

Definition at line 453 of file map-inl.h.

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◆ SetPrototype()

void v8::internal::Map::SetPrototype	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< JSPrototype >	prototype,
		bool	enable_prototype_setup_mode = true )

static

Definition at line 2467 of file map.cc.

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◆ SetShouldBeFastPrototypeMap()

void v8::internal::Map::SetShouldBeFastPrototypeMap	(	DirectHandle< Map >	map,
		bool	value,
		Isolate *	isolate )

static

Definition at line 2408 of file map.cc.

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◆ SetWasmByte1()

void v8::internal::Map::SetWasmByte1 ( uint8_t value )

inline

◆ SetWasmByte2()

void v8::internal::Map::SetWasmByte2 ( uint8_t value )

inline

◆ ShareDescriptor()

Handle< Map > v8::internal::Map::ShareDescriptor	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< DescriptorArray >	descriptors,
		Descriptor *	descriptor )

staticprivate

Definition at line 1493 of file map.cc.

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◆ should_be_fast_prototype_map()

bool v8::internal::Map::should_be_fast_prototype_map ( ) const

inline

Definition at line 587 of file map-inl.h.

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◆ ShouldCheckForReadOnlyElementsInPrototypeChain()

bool v8::internal::Map::ShouldCheckForReadOnlyElementsInPrototypeChain ( Isolate * isolate )

Definition at line 1209 of file map.cc.

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◆ SlackForArraySize()

int v8::internal::Map::SlackForArraySize	(	int	old_size,
		int	size_limit )

inlinestatic

Definition at line 1030 of file map-inl.h.

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◆ StartInobjectSlackTracking()

void v8::internal::Map::StartInobjectSlackTracking ( )

Definition at line 2486 of file map.cc.

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◆ TooManyFastProperties()

bool v8::internal::Map::TooManyFastProperties ( StoreOrigin store_origin ) const

inline

Definition at line 207 of file map-inl.h.

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◆ TransitionElementsTo()

DirectHandle< Map > v8::internal::Map::TransitionElementsTo	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		ElementsKind	to_kind )

static

Definition at line 1068 of file map.cc.

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◆ TransitionRootMapToPrototypeForNewObject()

Handle< Map > v8::internal::Map::TransitionRootMapToPrototypeForNewObject	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< JSPrototype >	prototype )

static

Definition at line 2492 of file map.cc.

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◆ TransitionToAccessorProperty()

DirectHandle< Map > v8::internal::Map::TransitionToAccessorProperty	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< Name >	name,
		InternalIndex	descriptor,
		DirectHandle< Object >	getter,
		DirectHandle< Object >	setter,
		PropertyAttributes	attributes )

static

Definition at line 2072 of file map.cc.

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◆ TransitionToDataProperty()

DirectHandle< Map > v8::internal::Map::TransitionToDataProperty	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< Name >	name,
		DirectHandle< Object >	value,
		PropertyAttributes	attributes,
		PropertyConstness	constness,
		StoreOrigin	store_origin )

static

Definition at line 1987 of file map.cc.

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◆ TransitionToImmutableProto()

DirectHandle< Map > v8::internal::Map::TransitionToImmutableProto	(	Isolate *	isolate,
		DirectHandle< Map >	map )

static

Definition at line 1413 of file map.cc.

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◆ TransitionToUpdatePrototype()

Handle< Map > v8::internal::Map::TransitionToUpdatePrototype	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		DirectHandle< JSPrototype >	prototype )

static

Definition at line 2506 of file map.cc.

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◆ TryAsElementsKind()

std::optional< Tagged< Map > > v8::internal::Map::TryAsElementsKind	(	Isolate *	isolate,
		DirectHandle< Map >	map,
		ElementsKind	kind,
		ConcurrencyMode	cmode )

static

Definition at line 1152 of file map.cc.

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◆ TryGetBackPointer()

bool v8::internal::Map::TryGetBackPointer	(	PtrComprCageBase	cage_base,
		Tagged< Map > *	back_pointer ) const

inline

Definition at line 826 of file map-inl.h.

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◆ TryGetConstructor()

Tagged< Object > v8::internal::Map::TryGetConstructor	(	PtrComprCageBase	cage_base,
		int	max_steps )

inline

Definition at line 971 of file map-inl.h.

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◆ TryGetMapRootIdxFor()

static constexpr std::optional< RootIndex > v8::internal::Map::TryGetMapRootIdxFor ( InstanceType type )

inlinestaticconstexpr

Definition at line 891 of file map.h.

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◆ TryGetPrototypeInfo()

bool v8::internal::Map::TryGetPrototypeInfo ( Tagged< PrototypeInfo > * result ) const

inline

Definition at line 598 of file map-inl.h.

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◆ TryReplayPropertyTransitions()

Tagged< Map > v8::internal::Map::TryReplayPropertyTransitions	(	Isolate *	isolate,
		Tagged< Map >	map,
		ConcurrencyMode	cmode )

private

Definition at line 773 of file map.cc.

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◆ TryUpdate()

MaybeHandle< Map > v8::internal::Map::TryUpdate	(	Isolate *	isolate,
		Handle< Map >	map )

static

Definition at line 751 of file map.cc.

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◆ UnusedInObjectProperties()

int v8::internal::Map::UnusedInObjectProperties ( ) const

inline

Definition at line 401 of file map-inl.h.

◆ UnusedPropertyFields()

int v8::internal::Map::UnusedPropertyFields ( ) const

inline

Definition at line 384 of file map-inl.h.

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◆ UnwrapFieldType()

Tagged< FieldType > v8::internal::Map::UnwrapFieldType ( Tagged< MaybeObject > wrapped_type )

static

Definition at line 495 of file map.cc.

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◆ Update()

DirectHandle< Map > v8::internal::Map::Update	(	Isolate *	isolate,
		DirectHandle< Map >	map )

static

Definition at line 839 of file map.cc.

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◆ UpdateDescriptors()

void v8::internal::Map::UpdateDescriptors	(	Isolate *	isolate,
		Tagged< DescriptorArray >	descriptors,
		int	number_of_own_descriptors )

inline

Definition at line 758 of file map-inl.h.

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◆ UsedInstanceSize()

int v8::internal::Map::UsedInstanceSize ( ) const

inline

Definition at line 425 of file map-inl.h.

◆ WasmByte1()

uint8_t v8::internal::Map::WasmByte1 ( ) const

inline

◆ WasmByte2()

uint8_t v8::internal::Map::WasmByte2 ( ) const

inline

◆ WrapFieldType()

MaybeObjectDirectHandle v8::internal::Map::WrapFieldType ( DirectHandle< FieldType > type )

static

Definition at line 487 of file map.cc.

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Friends And Related Symbol Documentation

◆ MapUpdater

friend class MapUpdater

friend

Definition at line 1069 of file map.h.

◆ MarkingVisitorBase

template<typename ConcreteVisitor >

friend class MarkingVisitorBase

friend

Definition at line 1071 of file map.h.

Member Data Documentation

◆ isolate

Tagged< UnionOf< Smi, MaybeWeak< Map >, TransitionArray > > Isolate* v8::internal::Map::isolate

Definition at line 502 of file map.h.

◆ kGenerousAllocationCount

const int v8::internal::Map::kGenerousAllocationCount

static

Initial value:

=

kSlackTrackingCounterStart - kSlackTrackingCounterEnd + 1

v8::internal::Map::kSlackTrackingCounterStart

static const int kSlackTrackingCounterStart

Definition map.h:347

v8::internal::Map::kSlackTrackingCounterEnd

static const int kSlackTrackingCounterEnd

Definition map.h:348

Definition at line 382 of file map.h.

◆ kNoConstructorFunctionIndex

const int v8::internal::Map::kNoConstructorFunctionIndex = 0

static

Definition at line 257 of file map.h.

◆ kNoSlackTracking

const int v8::internal::Map::kNoSlackTracking = 0

static

Definition at line 349 of file map.h.

◆ kPrototypeChainInvalid

int v8::internal::Map::kPrototypeChainInvalid = 1

staticconstexpr

Definition at line 518 of file map.h.

◆ kPrototypeChainValid

int v8::internal::Map::kPrototypeChainValid = 0

staticconstexpr

Definition at line 517 of file map.h.

◆ kPrototypeChainValidSmi

Tagged<Smi> v8::internal::Map::kPrototypeChainValidSmi = Smi::zero()

staticconstexpr

Definition at line 519 of file map.h.

◆ kSlackTrackingCounterEnd

const int v8::internal::Map::kSlackTrackingCounterEnd = 1

static

Definition at line 348 of file map.h.

◆ kSlackTrackingCounterStart

const int v8::internal::Map::kSlackTrackingCounterStart = 7

static

Definition at line 347 of file map.h.

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

src/objects/map.h
src/diagnostics/objects-printer.cc
src/objects/map-inl.h
src/objects/map.cc

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Private Member Functions

Static Private Member Functions

Friends

Detailed Description

Member Function Documentation

◆ AccountAddedOutOfObjectPropertyField()

◆ AccountAddedPropertyField()

◆ AddMissingTransitions()

◆ AddMissingTransitionsForTesting()

◆ AppendDescriptor()

◆ AsElementsKind()

◆ AsLanguageMode()

◆ BelongsToSameNativeContextAs() [1/2]

◆ BelongsToSameNativeContextAs() [2/2]

◆ CanBeDeprecated()

◆ CanHaveFastTransitionableElementsKind() [1/2]

◆ CanHaveFastTransitionableElementsKind() [2/2]

◆ CanTransition()

◆ clear_padding()

◆ ComputeMinObjectSlack()

◆ ConcurrentIsHeapObjectWithMap()

◆ ConnectTransition()

◆ Copy()

◆ CopyAddDescriptor()

◆ CopyAsElementsKind()

◆ CopyDropDescriptors()

◆ CopyForElementsTransition()

◆ CopyForPreventExtensions()

◆ CopyForPrototypeTransition()

◆ CopyInitialMap() [1/2]

◆ CopyInitialMap() [2/2]

◆ CopyInitialMapNormalized()

◆ CopyInsertDescriptor()

◆ CopyNormalized()

◆ CopyReplaceDescriptor()

◆ CopyReplaceDescriptors()

◆ CopyUnusedPropertyFields()

◆ CopyUnusedPropertyFieldsAdjustedForInstanceSize()

◆ CopyWithConstant()

◆ CopyWithField()

◆ Create()

◆ DECL_ACCESSORS()

◆ DECL_RELEASE_ACQUIRE_ACCESSORS()

◆ DeprecateTransitionTree()

◆ ElementsTransitionMap()

◆ EnsureDescriptorSlack()

◆ EnumLength()

◆ EquivalentToForElementsKindTransition()

◆ EquivalentToForNormalization() [1/2]

◆ EquivalentToForNormalization() [2/2]

◆ EquivalentToForTransition()

◆ FindElementsKindTransitionedMap()

◆ FindFieldOwner()

◆ FindRootMap()

◆ GeneralizeIfCanHaveTransitionableFastElementsKind()

◆ GetConstructorFunction()

◆ GetConstructorFunctionIndex()

◆ GetDerivedMap()

◆ GetFieldCounts()

◆ GetInitialElements()

◆ GetInObjectProperties()

◆ GetInObjectPropertiesStartInWords()

◆ GetInObjectPropertyOffset()

◆ GetLastDescriptorDetails()

◆ GetLastDescriptorName()

◆ GetMapFor()

◆ GetObjectCreateMap()

◆ GetOrCreatePrototypeChainValidityCell()

◆ GetOrCreatePrototypeInfo()

◆ GetPrototypeChainRootMap()

◆ GetVisitorId()

◆ has_any_nonextensible_elements()

◆ has_any_typed_array_or_wasm_array_elements()

◆ has_dictionary_elements()

◆ has_fast_double_elements()