v8::internal::EmbedderNode Class Reference

Inheritance diagram for v8::internal::EmbedderNode:

Collaboration diagram for v8::internal::EmbedderNode:

Public Member Functions
	EmbedderNode (const HeapObjectHeader *header_address, cppgc::internal::HeapObjectName name, size_t size)
	~EmbedderNode () override=default
const char *	Name () final
size_t	SizeInBytes () final
void	SetWrapperNode (v8::EmbedderGraph::Node *wrapper_node)
Node *	WrapperNode () final
void	SetDetachedness (Detachedness detachedness)
Detachedness	GetDetachedness () final
const char *	InternalizeEdgeName (std::string edge_name)
const void *	GetAddress () override
Public Member Functions inherited from v8::EmbedderGraph::Node
	Node ()=default
virtual	~Node ()=default
virtual bool	IsRootNode ()
virtual bool	IsEmbedderNode ()
virtual const char *	NamePrefix ()
virtual NativeObject	GetNativeObject ()
	Node (const Node &)=delete
Node &	operator= (const Node &)=delete

Private Attributes
const void *	header_address_
const char *	name_
size_t	size_
Node *	wrapper_node_ = nullptr
Detachedness	detachedness_ = Detachedness::kUnknown
std::vector< std::unique_ptr< char[]> >	named_edges_

Additional Inherited Members
Public Types inherited from v8::EmbedderGraph::Node
enum class	Detachedness : uint8_t { kUnknown = 0 , kAttached = 1 , kDetached = 2 }

Detailed Description

Definition at line 38 of file cpp-snapshot.cc.

Constructor & Destructor Documentation

EmbedderNode()

v8::internal::EmbedderNode::EmbedderNode ( const HeapObjectHeader * header_address, cppgc::internal::HeapObjectName name, size_t size )

inline

Definition at line 40 of file cpp-snapshot.cc.

~EmbedderNode()

v8::internal::EmbedderNode::~EmbedderNode ( )

overridedefault

Member Function Documentation

GetAddress()

const void * v8::internal::EmbedderNode::GetAddress ( )

inlineoverridevirtual

Returns the address of the object in the embedder heap, or nullptr to not specify the address. If this address is provided, then V8 can generate consistent IDs for objects across subsequent heap snapshots, which allows devtools to determine which objects were retained from one snapshot to the next. This value is used only if GetNativeObject returns nullptr.

Reimplemented from v8::EmbedderGraph::Node.

Definition at line 79 of file cpp-snapshot.cc.

GetDetachedness()

Detachedness v8::internal::EmbedderNode::GetDetachedness ( )

inlinefinalvirtual

Detachedness state of a given object. While unkown in general, there may be objects that specifically know their state. V8 passes this information along in the snapshot. Users of the snapshot may use it to annotate the object graph.

Reimplemented from v8::EmbedderGraph::Node.

Definition at line 67 of file cpp-snapshot.cc.

InternalizeEdgeName()

const char * v8::internal::EmbedderNode::InternalizeEdgeName ( std::string edge_name )

inline

Definition at line 71 of file cpp-snapshot.cc.

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Name()

const char * v8::internal::EmbedderNode::Name ( )

inlinefinalvirtual

Implements v8::EmbedderGraph::Node.

Definition at line 47 of file cpp-snapshot.cc.

SetDetachedness()

void v8::internal::EmbedderNode::SetDetachedness ( Detachedness detachedness )

inline

Definition at line 64 of file cpp-snapshot.cc.

SetWrapperNode()

void v8::internal::EmbedderNode::SetWrapperNode ( v8::EmbedderGraph::Node * wrapper_node )

inline

Definition at line 50 of file cpp-snapshot.cc.

SizeInBytes()

size_t v8::internal::EmbedderNode::SizeInBytes ( )

inlinefinalvirtual

Implements v8::EmbedderGraph::Node.

Definition at line 48 of file cpp-snapshot.cc.

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WrapperNode()

Node * v8::internal::EmbedderNode::WrapperNode ( )

inlinefinalvirtual

The corresponding V8 wrapper node if not null. During heap snapshot generation the embedder node and the V8 wrapper node will be merged into one node to simplify retaining paths.

Reimplemented from v8::EmbedderGraph::Node.

Definition at line 62 of file cpp-snapshot.cc.

Member Data Documentation

detachedness_

Detachedness v8::internal::EmbedderNode::detachedness_ = Detachedness::kUnknown

private

Definition at line 86 of file cpp-snapshot.cc.

header_address_

const void* v8::internal::EmbedderNode::header_address_

private

Definition at line 82 of file cpp-snapshot.cc.

name_

const char* v8::internal::EmbedderNode::name_

private

Definition at line 83 of file cpp-snapshot.cc.

named_edges_

std::vector<std::unique_ptr<char[]> > v8::internal::EmbedderNode::named_edges_

private

Definition at line 87 of file cpp-snapshot.cc.

size_

size_t v8::internal::EmbedderNode::size_

private

Definition at line 84 of file cpp-snapshot.cc.

wrapper_node_

Node* v8::internal::EmbedderNode::wrapper_node_ = nullptr

private

Definition at line 85 of file cpp-snapshot.cc.

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

• src/heap/cppgc-js/cpp-snapshot.cc