#include <v8.h>

Inheritance diagram for v8::ArrayBuffer:

Data Structures
class	Allocator

class	Contents

Public Member Functions
size_t	ByteLength () const

bool	IsExternal () const

bool	IsNeuterable () const

void	Neuter ()

Contents	Externalize ()

Contents	GetContents ()

Public Member Functions inherited from v8::Object
	V8_DEPRECATE_SOON ("Use maybe version", bool Set(Local< Value > key, Local< Value > value))

V8_WARN_UNUSED_RESULT Maybe< bool >	Set (Local< Context > context, Local< Value > key, Local< Value > value)

	V8_DEPRECATE_SOON ("Use maybe version", bool Set(uint32_t index, Local< Value > value))

V8_WARN_UNUSED_RESULT Maybe< bool >	Set (Local< Context > context, uint32_t index, Local< Value > value)

V8_WARN_UNUSED_RESULT Maybe< bool >	CreateDataProperty (Local< Context > context, Local< Name > key, Local< Value > value)

V8_WARN_UNUSED_RESULT Maybe< bool >	CreateDataProperty (Local< Context > context, uint32_t index, Local< Value > value)

V8_WARN_UNUSED_RESULT Maybe< bool >	DefineOwnProperty (Local< Context > context, Local< Name > key, Local< Value > value, PropertyAttribute attributes=None)

V8_WARN_UNUSED_RESULT Maybe< bool >	DefineProperty (Local< Context > context, Local< Name > key, PropertyDescriptor &descriptor)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Value > Get(Local< Value > key))

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	Get (Local< Context > context, Local< Value > key)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Value > Get(uint32_t index))

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	Get (Local< Context > context, uint32_t index)

V8_WARN_UNUSED_RESULT Maybe< PropertyAttribute >	GetPropertyAttributes (Local< Context > context, Local< Value > key)

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	GetOwnPropertyDescriptor (Local< Context > context, Local< Name > key)

	V8_DEPRECATE_SOON ("Use maybe version", bool Has(Local< Value > key))

V8_WARN_UNUSED_RESULT Maybe< bool >	Has (Local< Context > context, Local< Value > key)

	V8_DEPRECATE_SOON ("Use maybe version", bool Delete(Local< Value > key))

V8_WARN_UNUSED_RESULT Maybe< bool >	Delete (Local< Context > context, Local< Value > key)

V8_WARN_UNUSED_RESULT Maybe< bool >	Has (Local< Context > context, uint32_t index)

V8_WARN_UNUSED_RESULT Maybe< bool >	Delete (Local< Context > context, uint32_t index)

V8_WARN_UNUSED_RESULT Maybe< bool >	SetAccessor (Local< Context > context, Local< Name > name, AccessorNameGetterCallback getter, AccessorNameSetterCallback setter=0, MaybeLocal< Value > data=MaybeLocal< Value >(), AccessControl settings=DEFAULT, PropertyAttribute attribute=None, SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect)

void	SetAccessorProperty (Local< Name > name, Local< Function > getter, Local< Function > setter=Local< Function >(), PropertyAttribute attribute=None, AccessControl settings=DEFAULT)

V8_WARN_UNUSED_RESULT Maybe< bool >	SetNativeDataProperty (Local< Context > context, Local< Name > name, AccessorNameGetterCallback getter, AccessorNameSetterCallback setter=nullptr, Local< Value > data=Local< Value >(), PropertyAttribute attributes=None, SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect)

V8_WARN_UNUSED_RESULT Maybe< bool >	SetLazyDataProperty (Local< Context > context, Local< Name > name, AccessorNameGetterCallback getter, Local< Value > data=Local< Value >(), PropertyAttribute attributes=None, SideEffectType getter_side_effect_type=SideEffectType::kHasSideEffect)

Maybe< bool >	HasPrivate (Local< Context > context, Local< Private > key)

Maybe< bool >	SetPrivate (Local< Context > context, Local< Private > key, Local< Value > value)

Maybe< bool >	DeletePrivate (Local< Context > context, Local< Private > key)

MaybeLocal< Value >	GetPrivate (Local< Context > context, Local< Private > key)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Array > GetPropertyNames())

V8_WARN_UNUSED_RESULT MaybeLocal< Array >	GetPropertyNames (Local< Context > context)

V8_WARN_UNUSED_RESULT MaybeLocal< Array >	GetPropertyNames (Local< Context > context, KeyCollectionMode mode, PropertyFilter property_filter, IndexFilter index_filter, KeyConversionMode key_conversion=KeyConversionMode::kKeepNumbers)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Array > GetOwnPropertyNames())

V8_WARN_UNUSED_RESULT MaybeLocal< Array >	GetOwnPropertyNames (Local< Context > context)

V8_WARN_UNUSED_RESULT MaybeLocal< Array >	GetOwnPropertyNames (Local< Context > context, PropertyFilter filter, KeyConversionMode key_conversion=KeyConversionMode::kKeepNumbers)

Local< Value >	GetPrototype ()

V8_WARN_UNUSED_RESULT Maybe< bool >	SetPrototype (Local< Context > context, Local< Value > prototype)

Local< Object >	FindInstanceInPrototypeChain (Local< FunctionTemplate > tmpl)

V8_WARN_UNUSED_RESULT MaybeLocal< String >	ObjectProtoToString (Local< Context > context)

Local< String >	GetConstructorName ()

Maybe< bool >	SetIntegrityLevel (Local< Context > context, IntegrityLevel level)

int	InternalFieldCount ()

V8_INLINE Local< Value >	GetInternalField (int index)

void	SetInternalField (int index, Local< Value > value)

V8_INLINE void *	GetAlignedPointerFromInternalField (int index)

void	SetAlignedPointerInInternalField (int index, void *value)

void	SetAlignedPointerInInternalFields (int argc, int indices[], void *values[])

V8_WARN_UNUSED_RESULT Maybe< bool >	HasOwnProperty (Local< Context > context, Local< Name > key)

V8_WARN_UNUSED_RESULT Maybe< bool >	HasOwnProperty (Local< Context > context, uint32_t index)

	V8_DEPRECATE_SOON ("Use maybe version", bool HasRealNamedProperty(Local< String > key))

V8_WARN_UNUSED_RESULT Maybe< bool >	HasRealNamedProperty (Local< Context > context, Local< Name > key)

	V8_DEPRECATE_SOON ("Use maybe version", bool HasRealIndexedProperty(uint32_t index))

V8_WARN_UNUSED_RESULT Maybe< bool >	HasRealIndexedProperty (Local< Context > context, uint32_t index)

	V8_DEPRECATE_SOON ("Use maybe version", bool HasRealNamedCallbackProperty(Local< String > key))

V8_WARN_UNUSED_RESULT Maybe< bool >	HasRealNamedCallbackProperty (Local< Context > context, Local< Name > key)

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	GetRealNamedPropertyInPrototypeChain (Local< Context > context, Local< Name > key)

V8_WARN_UNUSED_RESULT Maybe< PropertyAttribute >	GetRealNamedPropertyAttributesInPrototypeChain (Local< Context > context, Local< Name > key)

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	GetRealNamedProperty (Local< Context > context, Local< Name > key)

V8_WARN_UNUSED_RESULT Maybe< PropertyAttribute >	GetRealNamedPropertyAttributes (Local< Context > context, Local< Name > key)

bool	HasNamedLookupInterceptor ()

bool	HasIndexedLookupInterceptor ()

int	GetIdentityHash ()

Local< Object >	Clone ()

Local< Context >	CreationContext ()

bool	IsCallable ()

bool	IsConstructor ()

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	CallAsFunction (Local< Context > context, Local< Value > recv, int argc, Local< Value > argv[])

V8_WARN_UNUSED_RESULT MaybeLocal< Value >	CallAsConstructor (Local< Context > context, int argc, Local< Value > argv[])

Isolate *	GetIsolate ()

MaybeLocal< Array >	PreviewEntries (bool *is_key_value)

Public Member Functions inherited from v8::Value
V8_INLINE bool	IsUndefined () const

V8_INLINE bool	IsNull () const

V8_INLINE bool	IsNullOrUndefined () const

bool	IsTrue () const

bool	IsFalse () const

bool	IsName () const

V8_INLINE bool	IsString () const

bool	IsSymbol () const

bool	IsFunction () const

bool	IsArray () const

bool	IsObject () const

bool	IsBigInt () const

bool	IsBoolean () const

bool	IsNumber () const

bool	IsExternal () const

bool	IsInt32 () const

bool	IsUint32 () const

bool	IsDate () const

bool	IsArgumentsObject () const

bool	IsBigIntObject () const

bool	IsBooleanObject () const

bool	IsNumberObject () const

bool	IsStringObject () const

bool	IsSymbolObject () const

bool	IsNativeError () const

bool	IsRegExp () const

bool	IsAsyncFunction () const

bool	IsGeneratorFunction () const

bool	IsGeneratorObject () const

bool	IsPromise () const

bool	IsMap () const

bool	IsSet () const

bool	IsMapIterator () const

bool	IsSetIterator () const

bool	IsWeakMap () const

bool	IsWeakSet () const

bool	IsArrayBuffer () const

bool	IsArrayBufferView () const

bool	IsTypedArray () const

bool	IsUint8Array () const

bool	IsUint8ClampedArray () const

bool	IsInt8Array () const

bool	IsUint16Array () const

bool	IsInt16Array () const

bool	IsUint32Array () const

bool	IsInt32Array () const

bool	IsFloat32Array () const

bool	IsFloat64Array () const

bool	IsBigInt64Array () const

bool	IsBigUint64Array () const

bool	IsDataView () const

bool	IsSharedArrayBuffer () const

bool	IsProxy () const

bool	IsWebAssemblyCompiledModule () const

bool	IsModuleNamespaceObject () const

V8_WARN_UNUSED_RESULT MaybeLocal< BigInt >	ToBigInt (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< Boolean >	ToBoolean (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< Number >	ToNumber (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< String >	ToString (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< String >	ToDetailString (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< Object >	ToObject (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< Integer >	ToInteger (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< Uint32 >	ToUint32 (Local< Context > context) const

V8_WARN_UNUSED_RESULT MaybeLocal< Int32 >	ToInt32 (Local< Context > context) const

	V8_DEPRECATE_SOON ("Use maybe version", Local< Boolean > ToBoolean(Isolate *isolate) const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Number > ToNumber(Isolate *isolate) const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< String > ToString(Isolate *isolate) const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Object > ToObject(Isolate *isolate) const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Integer > ToInteger(Isolate *isolate) const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Int32 > ToInt32(Isolate *isolate) const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Boolean > ToBoolean() const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< String > ToString() const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Object > ToObject() const)

	V8_DEPRECATE_SOON ("Use maybe version", Local< Integer > ToInteger() const)

V8_WARN_UNUSED_RESULT MaybeLocal< Uint32 >	ToArrayIndex (Local< Context > context) const

V8_WARN_UNUSED_RESULT Maybe< bool >	BooleanValue (Local< Context > context) const

V8_WARN_UNUSED_RESULT Maybe< double >	NumberValue (Local< Context > context) const

V8_WARN_UNUSED_RESULT Maybe< int64_t >	IntegerValue (Local< Context > context) const

V8_WARN_UNUSED_RESULT Maybe< uint32_t >	Uint32Value (Local< Context > context) const

V8_WARN_UNUSED_RESULT Maybe< int32_t >	Int32Value (Local< Context > context) const

	V8_DEPRECATE_SOON ("Use maybe version", bool BooleanValue() const)

	V8_DEPRECATE_SOON ("Use maybe version", double NumberValue() const)

	V8_DEPRECATE_SOON ("Use maybe version", int64_t IntegerValue() const)

	V8_DEPRECATE_SOON ("Use maybe version", uint32_t Uint32Value() const)

	V8_DEPRECATE_SOON ("Use maybe version", int32_t Int32Value() const)

	V8_DEPRECATE_SOON ("Use maybe version", bool Equals(Local< Value > that) const)

V8_WARN_UNUSED_RESULT Maybe< bool >	Equals (Local< Context > context, Local< Value > that) const

bool	StrictEquals (Local< Value > that) const

bool	SameValue (Local< Value > that) const

Local< String >	TypeOf (Isolate *)

Maybe< bool >	InstanceOf (Local< Context > context, Local< Object > object)

template<class T >
Value *	Cast (T *value)

Static Public Member Functions
static Local< ArrayBuffer >	New (Isolate *isolate, size_t byte_length)

static Local< ArrayBuffer >	New (Isolate isolate, void data, size_t byte_length, ArrayBufferCreationMode mode=ArrayBufferCreationMode::kExternalized)

static V8_INLINE ArrayBuffer *	Cast (Value *obj)

Static Public Member Functions inherited from v8::Object
static V8_INLINE int	InternalFieldCount (const PersistentBase< Object > &object)

static V8_INLINE void *	GetAlignedPointerFromInternalField (const PersistentBase< Object > &object, int index)

static V8_INLINE Local< Context >	CreationContext (const PersistentBase< Object > &object)

static Local< Object >	New (Isolate *isolate)

static V8_INLINE Object *	Cast (Value *obj)

Static Public Member Functions inherited from v8::Value
template<class T >
static V8_INLINE Value *	Cast (T *value)

Static Public Attributes
static const int	kInternalFieldCount = V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT

static const int	kEmbedderFieldCount = V8_ARRAY_BUFFER_INTERNAL_FIELD_COUNT

Detailed Description

An instance of the built-in ArrayBuffer constructor (ES6 draft 15.13.5).

Member Function Documentation

◆ ByteLength()

size_t v8::ArrayBuffer::ByteLength ( ) const

Data length in bytes.

◆ Externalize()

Contents v8::ArrayBuffer::Externalize ( )

Make this ArrayBuffer external. The pointer to underlying memory block and byte length are returned as |Contents| structure. After ArrayBuffer had been externalized, it does no longer own the memory block. The caller should take steps to free memory when it is no longer needed.

The memory block is guaranteed to be allocated with |Allocator::Allocate| that has been set via Isolate::CreateParams.

◆ GetContents()

Contents v8::ArrayBuffer::GetContents ( )

Get a pointer to the ArrayBuffer's underlying memory block without externalizing it. If the ArrayBuffer is not externalized, this pointer will become invalid as soon as the ArrayBuffer gets garbage collected.

The embedder should make sure to hold a strong reference to the ArrayBuffer while accessing this pointer.

The memory block is guaranteed to be allocated with |Allocator::Allocate|.

◆ IsExternal()

bool v8::ArrayBuffer::IsExternal ( ) const

Returns true if ArrayBuffer is externalized, that is, does not own its memory block.

◆ IsNeuterable()

bool v8::ArrayBuffer::IsNeuterable ( ) const

Returns true if this ArrayBuffer may be neutered.

◆ Neuter()

void v8::ArrayBuffer::Neuter ( )

Neuters this ArrayBuffer and all its views (typed arrays). Neutering sets the byte length of the buffer and all typed arrays to zero, preventing JavaScript from ever accessing underlying backing store. ArrayBuffer should have been externalized and must be neuterable.

◆ New() [1/2]

static Local<ArrayBuffer> v8::ArrayBuffer::New	(	Isolate *	isolate,
		size_t	byte_length
	)

static

Create a new ArrayBuffer. Allocate |byte_length| bytes. Allocated memory will be owned by a created ArrayBuffer and will be deallocated when it is garbage-collected, unless the object is externalized.

◆ New() [2/2]

static Local<ArrayBuffer> v8::ArrayBuffer::New	(	Isolate *	isolate,
		void *	data,
		size_t	byte_length,
		ArrayBufferCreationMode	mode = `ArrayBufferCreationMode::kExternalized`
	)

static

Create a new ArrayBuffer over an existing memory block. The created array buffer is by default immediately in externalized state. In externalized state, the memory block will not be reclaimed when a created ArrayBuffer is garbage-collected. In internalized state, the memory block will be released using |Allocator::Free| once all ArrayBuffers referencing it are collected by the garbage collector.

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

v8/include/v8.h

Data Structures

Public Member Functions

Static Public Member Functions

Static Public Attributes