#include <serializer.h>

Inheritance diagram for v8::internal::Serializer:

Collaboration diagram for v8::internal::Serializer:

Classes
class	HotObjectsList

class	ObjectSerializer

class	RecursionScope

Public Member Functions
	Serializer (Isolate *isolate, Snapshot::SerializerFlags flags)

	~Serializer () override

	Serializer (const Serializer &)=delete

Serializer &	operator= (const Serializer &)=delete

const std::vector< uint8_t > *	Payload () const

bool	ReferenceMapContains (DirectHandle< HeapObject > o)

Isolate *	isolate () const

PtrComprCageBase	cage_base () const

int	TotalAllocationSize () const

Public Member Functions inherited from v8::internal::RootVisitor
virtual	~RootVisitor ()=default

virtual void	VisitRootPointer (Root root, const char *description, FullObjectSlot p)

virtual void	VisitRootPointers (Root root, const char *description, OffHeapObjectSlot start, OffHeapObjectSlot end)

virtual void	VisitRunningCode (FullObjectSlot code_slot, FullObjectSlot istream_or_smi_zero_slot)

virtual void	Synchronize (VisitorSynchronization::SyncTag tag)

virtual GarbageCollector	collector () const

Protected Types
using	PendingObjectReferences = std::vector<int>*

Protected Types inherited from v8::internal::SerializerDeserializer
enum class	SlotType { kAnySlot , kMapSlot }

enum	Bytecode : uint8_t { kNewObject = 0x00 , kBackref = 0x04 , kReadOnlyHeapRef , kStartupObjectCache , kRootArray , kAttachedReference , kSharedHeapObjectCache , kNop , kSynchronize , kVariableRepeatRoot , kOffHeapBackingStore , kOffHeapResizableBackingStore , kEmbedderFieldsData , kApiWrapperFieldsData , kVariableRawData , kApiReference , kExternalReference , kSandboxedApiReference , kSandboxedExternalReference , kSandboxedRawExternalReference , kClearedWeakReference , kWeakPrefix , kRegisterPendingForwardRef , kResolvePendingForwardRef , kNewContextlessMetaMap , kNewContextfulMetaMap , kIndirectPointerPrefix , kInitializeSelfIndirectPointer , kAllocateJSDispatchEntry , kJSDispatchEntry , kProtectedPointerPrefix , kRootArrayConstants = 0x40 , kFixedRawData = 0x60 , kFixedRepeatRoot = 0x80 , kHotObject = 0x90 }

template<Bytecode bytecode>
using	SpaceEncoder

using	NewObject = SpaceEncoder<kNewObject>

using	FixedRawDataWithSize

using	FixedRepeatRootWithCount

using	RootArrayConstant

using	HotObject = BytecodeValueEncoder<kHotObject, 0, kHotObjectCount - 1>

Protected Member Functions
V8_INLINE bool	IsNotMappedSymbol (Tagged< HeapObject > obj) const

void	SerializeDeferredObjects ()

void	SerializeObject (Handle< HeapObject > o, SlotType slot_type)

virtual void	SerializeObjectImpl (Handle< HeapObject > o, SlotType slot_type)=0

virtual bool	MustBeDeferred (Tagged< HeapObject > object)

void	VisitRootPointers (Root root, const char *description, FullObjectSlot start, FullObjectSlot end) override

void	SerializeRootObject (FullObjectSlot slot)

void	PutRoot (RootIndex root_index)

void	PutSmiRoot (FullObjectSlot slot)

void	PutBackReference (Tagged< HeapObject > object, SerializerReference reference)

void	PutAttachedReference (SerializerReference reference)

void	PutNextChunk (SnapshotSpace space)

void	PutRepeatRoot (int repeat_count, RootIndex root_index)

void	PutPendingForwardReference (PendingObjectReferences &ref)

void	ResolvePendingForwardReference (int obj)

bool	SerializeRoot (Tagged< HeapObject > obj)

bool	SerializeHotObject (Tagged< HeapObject > obj)

bool	SerializeBackReference (Tagged< HeapObject > obj)

bool	SerializePendingObject (Tagged< HeapObject > obj)

bool	ObjectIsBytecodeHandler (Tagged< HeapObject > obj) const

ExternalReferenceEncoder::Value	EncodeExternalReference (Address addr)

Maybe< ExternalReferenceEncoder::Value >	TryEncodeExternalReference (Address addr)

bool	SerializeReadOnlyObjectReference (Tagged< HeapObject > obj, SnapshotByteSink *sink)

void	Pad (int padding_offset=0)

void	InitializeCodeAddressMap ()

Tagged< InstructionStream >	CopyCode (Tagged< InstructionStream > istream)

void	QueueDeferredObject (Tagged< HeapObject > obj)

void	RegisterObjectIsPending (Tagged< HeapObject > obj)

void	ResolvePendingObject (Tagged< HeapObject > obj)

void	OutputStatistics (const char *name)

void	CountAllocation (Tagged< Map > map, int size, SnapshotSpace space)

SerializerReferenceMap *	reference_map ()

const RootIndexMap *	root_index_map () const

bool	allow_unknown_external_references_for_testing () const

bool	allow_active_isolate_for_testing () const

bool	reconstruct_read_only_and_shared_object_caches_for_testing () const

bool	deferred_objects_empty ()

bool	serializer_tracks_serialization_statistics () const

void	set_serializer_tracks_serialization_statistics (bool v)

Protected Member Functions inherited from v8::internal::SerializerDeserializer
void	RestoreExternalReferenceRedirector (Isolate *isolate, Tagged< AccessorInfo > accessor_info)

void	RestoreExternalReferenceRedirector (Isolate *isolate, Tagged< FunctionTemplateInfo > function_template_info)

Protected Attributes
SnapshotByteSink	sink_

Private Attributes
Isolate *	isolate_

HotObjectsList	hot_objects_

SerializerReferenceMap	reference_map_

ExternalReferenceEncoder	external_reference_encoder_

RootIndexMap	root_index_map_

std::unique_ptr< CodeAddressMap >	code_address_map_

std::vector< uint8_t >	code_buffer_

GlobalHandleVector< HeapObject >	deferred_objects_

int	num_back_refs_ = 0

std::unordered_map< JSDispatchHandle, uint32_t >	dispatch_handle_map_

int	next_forward_ref_id_ = 0

int	unresolved_forward_refs_ = 0

IdentityMap< PendingObjectReferences, base::DefaultAllocationPolicy >	forward_refs_per_pending_object_

uint32_t	seen_backing_stores_index_ = 1

int	recursion_depth_ = 0

const Snapshot::SerializerFlags	flags_

bool	serializer_tracks_serialization_statistics_ = true

size_t	allocation_size_ [kNumberOfSnapshotSpaces] = {0}

Additional Inherited Members
Static Public Member Functions inherited from v8::internal::SerializerDeserializer
static void	IterateStartupObjectCache (Isolate isolate, RootVisitor visitor)

static void	IterateSharedHeapObjectCache (Isolate isolate, RootVisitor visitor)

Static Public Member Functions inherited from v8::internal::RootVisitor
static const char *	RootName (Root root)

Static Protected Member Functions inherited from v8::internal::SerializerDeserializer
static bool	CanBeDeferred (Tagged< HeapObject > o, SlotType slot_type)

Static Protected Attributes inherited from v8::internal::SerializerDeserializer
static const int	kRootArrayConstantsCount = 0x20

static const int	kFixedRawDataCount = 0x20

static const int	kFixedRepeatRootCount = 0x10

static const int	kHotObjectCount = 8

static const int	kDoubleAlignmentSentinel = 0

static const int	kFirstEncodableFixedRawDataSize = 1

static const int	kLastEncodableFixedRawDataSize

static const int	kFirstEncodableRepeatRootCount = 2

static const int	kLastEncodableFixedRepeatRootCount

static const int	kFirstEncodableVariableRepeatRootCount

static const uint32_t	kEmptyBackingStoreRefSentinel = 0

Detailed Description

Definition at line 182 of file serializer.h.

Member Typedef Documentation

◆ PendingObjectReferences

using v8::internal::Serializer::PendingObjectReferences = std::vector<int>*

protected

Definition at line 210 of file serializer.h.

Constructor & Destructor Documentation

◆ Serializer() [1/2]

v8::internal::Serializer::Serializer	(	Isolate *	isolate,
		Snapshot::SerializerFlags	flags )

Definition at line 34 of file serializer.cc.

◆ ~Serializer()

v8::internal::Serializer::~Serializer ( )

inlineoverride

Definition at line 185 of file serializer.h.

◆ Serializer() [2/2]

v8::internal::Serializer::Serializer ( const Serializer & )

delete

Member Function Documentation

◆ allow_active_isolate_for_testing()

bool v8::internal::Serializer::allow_active_isolate_for_testing ( ) const

inlineprotected

Definition at line 328 of file serializer.h.

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◆ allow_unknown_external_references_for_testing()

bool v8::internal::Serializer::allow_unknown_external_references_for_testing ( ) const

inlineprotected

Definition at line 325 of file serializer.h.

◆ cage_base()

PtrComprCageBase v8::internal::Serializer::cage_base ( ) const

inline

Definition at line 199 of file serializer.h.

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◆ CopyCode()

Tagged< InstructionStream > v8::internal::Serializer::CopyCode ( Tagged< InstructionStream > istream )

protected

Definition at line 441 of file serializer.cc.

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◆ CountAllocation()

void v8::internal::Serializer::CountAllocation	(	Tagged< Map >	map,
		int	size,
		SnapshotSpace	space )

protected

Definition at line 67 of file serializer.cc.

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◆ deferred_objects_empty()

bool v8::internal::Serializer::deferred_objects_empty ( )

inlineprotected

Definition at line 337 of file serializer.h.

◆ EncodeExternalReference()

ExternalReferenceEncoder::Value v8::internal::Serializer::EncodeExternalReference ( Address addr )

protected

Definition at line 374 of file serializer.cc.

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◆ InitializeCodeAddressMap()

void v8::internal::Serializer::InitializeCodeAddressMap ( )

protected

Definition at line 436 of file serializer.cc.

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◆ IsNotMappedSymbol()

bool v8::internal::Serializer::IsNotMappedSymbol ( Tagged< HeapObject > obj ) const

protected

Definition at line 16 of file serializer-inl.h.

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◆ isolate()

Isolate * v8::internal::Serializer::isolate ( ) const

inline

Definition at line 195 of file serializer.h.

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◆ MustBeDeferred()

bool v8::internal::Serializer::MustBeDeferred ( Tagged< HeapObject > object )

protectedvirtual

Definition at line 181 of file serializer.cc.

◆ ObjectIsBytecodeHandler()

bool v8::internal::Serializer::ObjectIsBytecodeHandler ( Tagged< HeapObject > obj ) const

protected

Definition at line 274 of file serializer.cc.

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◆ operator=()

Serializer & v8::internal::Serializer::operator= ( const Serializer & )

delete

◆ OutputStatistics()

void v8::internal::Serializer::OutputStatistics ( const char * name )

protected

Definition at line 105 of file serializer.cc.

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◆ Pad()

void v8::internal::Serializer::Pad ( int padding_offset = 0 )

protected

Definition at line 424 of file serializer.cc.

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◆ Payload()

const std::vector< uint8_t > * v8::internal::Serializer::Payload ( ) const

inline

Definition at line 189 of file serializer.h.

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◆ PutAttachedReference()

void v8::internal::Serializer::PutAttachedReference ( SerializerReference reference )

protected

Definition at line 328 of file serializer.cc.

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◆ PutBackReference()

void v8::internal::Serializer::PutBackReference	(	Tagged< HeapObject >	object,
		SerializerReference	reference )

protected

Definition at line 321 of file serializer.cc.

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◆ PutNextChunk()

void v8::internal::Serializer::PutNextChunk ( SnapshotSpace space )

protected

◆ PutPendingForwardReference()

void v8::internal::Serializer::PutPendingForwardReference ( PendingObjectReferences & ref )

protected

Definition at line 347 of file serializer.cc.

◆ PutRepeatRoot()

void v8::internal::Serializer::PutRepeatRoot	(	int	repeat_count,
		RootIndex	root_index )

protected

Definition at line 334 of file serializer.cc.

◆ PutRoot()

void v8::internal::Serializer::PutRoot ( RootIndex root_index )

protected

Definition at line 279 of file serializer.cc.

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◆ PutSmiRoot()

void v8::internal::Serializer::PutSmiRoot ( FullObjectSlot slot )

protected

Definition at line 305 of file serializer.cc.

◆ QueueDeferredObject()

void v8::internal::Serializer::QueueDeferredObject ( Tagged< HeapObject > obj )

inlineprotected

Definition at line 296 of file serializer.h.

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◆ reconstruct_read_only_and_shared_object_caches_for_testing()

bool v8::internal::Serializer::reconstruct_read_only_and_shared_object_caches_for_testing ( ) const

inlineprotected

Definition at line 332 of file serializer.h.

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◆ reference_map()

SerializerReferenceMap * v8::internal::Serializer::reference_map ( )

inlineprotected

Definition at line 320 of file serializer.h.

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◆ ReferenceMapContains()

bool v8::internal::Serializer::ReferenceMapContains ( DirectHandle< HeapObject > o )

inline

Definition at line 191 of file serializer.h.

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◆ RegisterObjectIsPending()

void v8::internal::Serializer::RegisterObjectIsPending ( Tagged< HeapObject > obj )

protected

Definition at line 391 of file serializer.cc.

◆ ResolvePendingForwardReference()

void v8::internal::Serializer::ResolvePendingForwardReference ( int obj )

protected

Definition at line 362 of file serializer.cc.

◆ ResolvePendingObject()

void v8::internal::Serializer::ResolvePendingObject ( Tagged< HeapObject > obj )

protected

Definition at line 408 of file serializer.cc.

◆ root_index_map()

const RootIndexMap * v8::internal::Serializer::root_index_map ( ) const

inlineprotected

Definition at line 321 of file serializer.h.

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◆ SerializeBackReference()

bool v8::internal::Serializer::SerializeBackReference ( Tagged< HeapObject > obj )

protected

Definition at line 236 of file serializer.cc.

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◆ SerializeDeferredObjects()

void v8::internal::Serializer::SerializeDeferredObjects ( )

protected

Definition at line 148 of file serializer.cc.

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◆ SerializeHotObject()

bool v8::internal::Serializer::SerializeHotObject ( Tagged< HeapObject > obj )

protected

Definition at line 221 of file serializer.cc.

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◆ SerializeObject()

void v8::internal::Serializer::SerializeObject	(	Handle< HeapObject >	o,
		SlotType	slot_type )

protected

Definition at line 161 of file serializer.cc.

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◆ SerializeObjectImpl()

virtual void v8::internal::Serializer::SerializeObjectImpl	(	Handle< HeapObject >	o,
		SlotType	slot_type )

protectedpure virtual

◆ SerializePendingObject()

bool v8::internal::Serializer::SerializePendingObject ( Tagged< HeapObject > obj )

protected

Definition at line 264 of file serializer.cc.

◆ serializer_tracks_serialization_statistics()

bool v8::internal::Serializer::serializer_tracks_serialization_statistics ( ) const

inlineprotected

Definition at line 340 of file serializer.h.

◆ SerializeReadOnlyObjectReference()

bool v8::internal::Serializer::SerializeReadOnlyObjectReference	(	Tagged< HeapObject >	obj,
		SnapshotByteSink *	sink )

protected

Definition at line 1462 of file serializer.cc.

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◆ SerializeRoot()

bool v8::internal::Serializer::SerializeRoot ( Tagged< HeapObject > obj )

protected

Definition at line 210 of file serializer.cc.

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◆ SerializeRootObject()

void v8::internal::Serializer::SerializeRootObject ( FullObjectSlot slot )

protected

Definition at line 190 of file serializer.cc.

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◆ set_serializer_tracks_serialization_statistics()

void v8::internal::Serializer::set_serializer_tracks_serialization_statistics ( bool v )

inlineprotected

Definition at line 343 of file serializer.h.

◆ TotalAllocationSize()

int v8::internal::Serializer::TotalAllocationSize ( ) const

Definition at line 80 of file serializer.cc.

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◆ TryEncodeExternalReference()

Maybe< ExternalReferenceEncoder::Value > v8::internal::Serializer::TryEncodeExternalReference ( Address addr )

inlineprotected

Definition at line 278 of file serializer.h.

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◆ VisitRootPointers()

void v8::internal::Serializer::VisitRootPointers	(	Root	root,
		const char *	description,
		FullObjectSlot	start,
		FullObjectSlot	end )

overrideprotectedvirtual

Implements v8::internal::RootVisitor.

Definition at line 183 of file serializer.cc.

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Member Data Documentation

◆ allocation_size_

size_t v8::internal::Serializer::allocation_size_[kNumberOfSnapshotSpaces] = {0}

private

Definition at line 438 of file serializer.h.

◆ code_address_map_

std::unique_ptr<CodeAddressMap> v8::internal::Serializer::code_address_map_

private

Definition at line 402 of file serializer.h.

◆ code_buffer_

std::vector<uint8_t> v8::internal::Serializer::code_buffer_

private

Definition at line 403 of file serializer.h.

◆ deferred_objects_

GlobalHandleVector<HeapObject> v8::internal::Serializer::deferred_objects_

private

Definition at line 405 of file serializer.h.

◆ dispatch_handle_map_

std::unordered_map<JSDispatchHandle, uint32_t> v8::internal::Serializer::dispatch_handle_map_

private

Definition at line 409 of file serializer.h.

◆ external_reference_encoder_

ExternalReferenceEncoder v8::internal::Serializer::external_reference_encoder_

private

Definition at line 400 of file serializer.h.

◆ flags_

const Snapshot::SerializerFlags v8::internal::Serializer::flags_

private

Definition at line 435 of file serializer.h.

◆ forward_refs_per_pending_object_

IdentityMap<PendingObjectReferences, base::DefaultAllocationPolicy> v8::internal::Serializer::forward_refs_per_pending_object_

private

Definition at line 425 of file serializer.h.

◆ hot_objects_

HotObjectsList v8::internal::Serializer::hot_objects_

private

Definition at line 398 of file serializer.h.

◆ isolate_

Isolate* v8::internal::Serializer::isolate_

private

Definition at line 394 of file serializer.h.

◆ next_forward_ref_id_

int v8::internal::Serializer::next_forward_ref_id_ = 0

private

Definition at line 422 of file serializer.h.

◆ num_back_refs_

int v8::internal::Serializer::num_back_refs_ = 0

private

Definition at line 406 of file serializer.h.

◆ recursion_depth_

int v8::internal::Serializer::recursion_depth_ = 0

private

Definition at line 434 of file serializer.h.

◆ reference_map_

SerializerReferenceMap v8::internal::Serializer::reference_map_

private

Definition at line 399 of file serializer.h.

◆ root_index_map_

RootIndexMap v8::internal::Serializer::root_index_map_

private

Definition at line 401 of file serializer.h.

◆ seen_backing_stores_index_

uint32_t v8::internal::Serializer::seen_backing_stores_index_ = 1

private

Definition at line 432 of file serializer.h.

◆ serializer_tracks_serialization_statistics_

bool v8::internal::Serializer::serializer_tracks_serialization_statistics_ = true

private

Definition at line 437 of file serializer.h.

◆ sink_

SnapshotByteSink v8::internal::Serializer::sink_

protected

Definition at line 323 of file serializer.h.

◆ unresolved_forward_refs_

int v8::internal::Serializer::unresolved_forward_refs_ = 0

private

Definition at line 423 of file serializer.h.

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

src/snapshot/serializer.h
src/snapshot/serializer-inl.h
src/snapshot/serializer.cc

Classes

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ PendingObjectReferences

Constructor & Destructor Documentation

◆ Serializer() [1/2]

◆ ~Serializer()

◆ Serializer() [2/2]

Member Function Documentation

◆ allow_active_isolate_for_testing()

◆ allow_unknown_external_references_for_testing()

◆ cage_base()

◆ CopyCode()

◆ CountAllocation()

◆ deferred_objects_empty()

◆ EncodeExternalReference()

◆ InitializeCodeAddressMap()

◆ IsNotMappedSymbol()

◆ isolate()

◆ MustBeDeferred()

◆ ObjectIsBytecodeHandler()

◆ operator=()

◆ OutputStatistics()

◆ Pad()

◆ Payload()

◆ PutAttachedReference()

◆ PutBackReference()

◆ PutNextChunk()

◆ PutPendingForwardReference()

◆ PutRepeatRoot()

◆ PutRoot()

◆ PutSmiRoot()

◆ QueueDeferredObject()

◆ reconstruct_read_only_and_shared_object_caches_for_testing()

◆ reference_map()

◆ ReferenceMapContains()

◆ RegisterObjectIsPending()

◆ ResolvePendingForwardReference()

◆ ResolvePendingObject()

◆ root_index_map()

◆ SerializeBackReference()

◆ SerializeDeferredObjects()

◆ SerializeHotObject()

◆ SerializeObject()

◆ SerializeObjectImpl()

◆ SerializePendingObject()

◆ serializer_tracks_serialization_statistics()

◆ SerializeReadOnlyObjectReference()

◆ SerializeRoot()

◆ SerializeRootObject()

◆ set_serializer_tracks_serialization_statistics()

◆ TotalAllocationSize()

◆ TryEncodeExternalReference()

◆ VisitRootPointers()

Member Data Documentation

◆ allocation_size_

◆ code_address_map_

◆ code_buffer_

◆ deferred_objects_

◆ dispatch_handle_map_

◆ external_reference_encoder_

◆ flags_

◆ forward_refs_per_pending_object_

◆ hot_objects_

◆ isolate_

◆ next_forward_ref_id_

◆ num_back_refs_

◆ recursion_depth_

◆ reference_map_

◆ root_index_map_

◆ seen_backing_stores_index_

◆ serializer_tracks_serialization_statistics_

◆ sink_

◆ unresolved_forward_refs_