HandleScope Class Reference

#include <v8-local-handle.h>

Inheritance diagram for HandleScope:

Public Member Functions
	HandleScope (Isolate *isolate)
	~HandleScope ()
V8_INLINE Isolate *	GetIsolate () const
	HandleScope (const HandleScope &)=delete
void	operator= (const HandleScope &)=delete

Static Public Member Functions
static int	NumberOfHandles (Isolate *isolate)

Protected Member Functions
V8_INLINE	HandleScope ()=default
void	Initialize (Isolate *isolate)

Static Protected Member Functions
static internal::Address *	CreateHandle (internal::Isolate *isolate, internal::Address value)

Friends
template<class F >
class	Local
class	Object
class	Context

Detailed Description

A stack-allocated class that governs a number of local handles. After a handle scope has been created, all local handles will be allocated within that handle scope until either the handle scope is deleted or another handle scope is created. If there is already a handle scope and a new one is created, all allocations will take place in the new handle scope until it is deleted. After that, new handles will again be allocated in the original handle scope.

After the handle scope of a local handle has been deleted the garbage collector will no longer track the object stored in the handle and may deallocate it. The behavior of accessing a handle for which the handle scope has been deleted is undefined.

Definition at line 79 of file v8-local-handle.h.

Constructor & Destructor Documentation

HandleScope() [1/3]

HandleScope ( Isolate *  isolate )

explicit

Referenced by PersistentValueMapBase< K, V, Traits >::Clear().

~HandleScope()

~HandleScope

(

)

HandleScope() [2/3]

HandleScope ( const HandleScope &  )

delete

HandleScope() [3/3]

V8_INLINE HandleScope ( )

protecteddefault

Member Function Documentation

CreateHandle()

static internal::Address* CreateHandle ( internal::Isolate *  isolate, internal::Address  value  )

staticprotected

Referenced by Context::GetEmbedderData(), and Object::GetInternalField().

GetIsolate()

V8_INLINE Isolate* GetIsolate ( ) const

inline

Definition at line 90 of file v8-local-handle.h.

Initialize()

void Initialize ( Isolate *  isolate )

protected

NumberOfHandles()

static int NumberOfHandles ( Isolate *  isolate )

static

Counts the number of allocated handles.

operator=()

void operator= ( const HandleScope &  )

delete

Friends And Related Function Documentation

Context

friend class Context

friend

Definition at line 124 of file v8-local-handle.h.

Local

friend class Local

friend

Definition at line 119 of file v8-local-handle.h.

Referenced by Local< T >::As(), Local< T >::Cast(), FunctionCallbackInfo< T >::Data(), PropertyCallbackInfo< T >::Data(), String::Empty(), V8InspectorClient::ensureDefaultContextInGroup(), EscapableHandleScope::Escape(), EscapableHandleScope::EscapeMaybe(), MaybeLocal< T >::FromMaybe(), ReturnValue< T >::Get(), PersistentValueMapBase< K, V, Traits >::Get(), Eternal< T >::Get(), PersistentBase< T >::Get(), BasicTracedReference< T >::Get(), PersistentValueVector< V, Traits >::Get(), TracedReferenceBase::Get(), Context::GetDataFromSnapshotOnce(), Isolate::GetDataFromSnapshotOnce(), Context::GetEmbedderData(), Object::GetInternalField(), Extension::GetNativeFunctionTemplate(), FunctionCallbackInfo< T >::Holder(), PropertyCallbackInfo< T >::Holder(), PersistentValueMapBase< K, V, Traits >::PersistentValueReference::NewLocal(), FunctionCallbackInfo< T >::NewTarget(), FunctionCallbackInfo< T >::operator[](), PersistentValueMap< K, V, Traits >::SetUnique(), GlobalValueMap< K, V, Traits >::SetUnique(), FunctionCallbackInfo< T >::This(), PropertyCallbackInfo< T >::This(), and MaybeLocal< T >::ToLocalChecked().

Object

friend class Object

friend

Definition at line 123 of file v8-local-handle.h.

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

• include/v8-local-handle.h