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v8::internal::JSTypedArray Class Reference

#include <objects.h>

+ Inheritance diagram for v8::internal::JSTypedArray:
+ Collaboration diagram for v8::internal::JSTypedArray:

Public Member Functions

void Neuter ()
 
ExternalArrayType type ()
 
size_t element_size ()
 
Handle< JSArrayBuffer > GetBuffer ()
 
- Public Member Functions inherited from v8::internal::JSObject
 DECL_ACCESSORS (properties, FixedArray) inline void initialize_properties()
 
bool HasFastProperties ()
 
NameDictionary * property_dictionary ()
 
void initialize_elements ()
 
ElementsKind GetElementsKind ()
 
ElementsAccessor * GetElementsAccessor ()
 
bool HasFastSmiElements ()
 
bool HasFastObjectElements ()
 
bool HasFastSmiOrObjectElements ()
 
bool HasFastElements ()
 
bool HasFastDoubleElements ()
 
bool HasFastHoleyElements ()
 
bool HasSloppyArgumentsElements ()
 
bool HasDictionaryElements ()
 
bool HasExternalUint8ClampedElements ()
 
bool HasExternalArrayElements ()
 
bool HasExternalInt8Elements ()
 
bool HasExternalUint8Elements ()
 
bool HasExternalInt16Elements ()
 
bool HasExternalUint16Elements ()
 
bool HasExternalInt32Elements ()
 
bool HasExternalUint32Elements ()
 
bool HasExternalFloat32Elements ()
 
bool HasExternalFloat64Elements ()
 
bool HasFixedTypedArrayElements ()
 
bool HasFixedUint8ClampedElements ()
 
bool HasFixedArrayElements ()
 
bool HasFixedInt8Elements ()
 
bool HasFixedUint8Elements ()
 
bool HasFixedInt16Elements ()
 
bool HasFixedUint16Elements ()
 
bool HasFixedInt32Elements ()
 
bool HasFixedUint32Elements ()
 
bool HasFixedFloat32Elements ()
 
bool HasFixedFloat64Elements ()
 
bool HasFastArgumentsElements ()
 
bool HasDictionaryArgumentsElements ()
 
SeededNumberDictionary * element_dictionary ()
 
InterceptorInfo * GetNamedInterceptor ()
 
InterceptorInfo * GetIndexedInterceptor ()
 
bool IsDirty ()
 
Object * GetHiddenProperty (Handle< Name > key)
 
bool WouldConvertToSlowElements (Handle< Object > key)
 
bool ShouldConvertToSlowElements (int new_capacity)
 
bool ShouldConvertToFastElements ()
 
bool ShouldConvertToFastDoubleElements (bool *has_smi_only_elements)
 
bool HasNamedInterceptor ()
 
bool HasIndexedInterceptor ()
 
int GetHeaderSize ()
 
int GetInternalFieldCount ()
 
int GetInternalFieldOffset (int index)
 
Object * GetInternalField (int index)
 
void SetInternalField (int index, Object *value)
 
void SetInternalField (int index, Smi *value)
 
int NumberOfOwnProperties (PropertyAttributes filter=NONE)
 
void GetOwnPropertyNames (FixedArray *storage, int index, PropertyAttributes filter=NONE)
 
int NumberOfOwnElements (PropertyAttributes filter)
 
int NumberOfEnumElements ()
 
int GetOwnElementKeys (FixedArray *storage, PropertyAttributes filter)
 
int GetEnumElementKeys (FixedArray *storage)
 
Object * RawFastPropertyAt (FieldIndex index)
 
void FastPropertyAtPut (FieldIndex index, Object *value)
 
void WriteToField (int descriptor, Object *value)
 
int GetInObjectPropertyOffset (int index)
 
Object * InObjectPropertyAt (int index)
 
Object * InObjectPropertyAtPut (int index, Object *value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)
 
void InitializeBody (Map *map, Object *pre_allocated_value, Object *filler_value)
 
bool ReferencesObject (Object *obj)
 
void JSObjectShortPrint (StringStream *accumulator)
 
void PrintInstanceMigration (FILE *file, Map *original_map, Map *new_map)
 
Object * SlowReverseLookup (Object *value)
 
 STATIC_ASSERT (kHeaderSize==Internals::kJSObjectHeaderSize)
 
Context * GetCreationContext ()
 
- Public Member Functions inherited from v8::internal::JSReceiver
bool IsSimpleEnum ()
 
String * class_name ()
 
String * constructor_name ()
 
Object * GetConstructor ()
 
Object * GetIdentityHash ()
 
- Public Member Functions inherited from v8::internal::HeapObject
Map * map () const
 
void set_map (Map *value)
 
void set_map_no_write_barrier (Map *value)
 
Map * synchronized_map ()
 
MapWord synchronized_map_word () const
 
void synchronized_set_map (Map *value)
 
void synchronized_set_map_no_write_barrier (Map *value)
 
void synchronized_set_map_word (MapWord map_word)
 
MapWord map_word () const
 
void set_map_word (MapWord map_word)
 
Heap * GetHeap () const
 
Isolate * GetIsolate () const
 
Address address ()
 
void Iterate (ObjectVisitor *v)
 
void IterateBody (InstanceType type, int object_size, ObjectVisitor *v)
 
int Size ()
 
bool MayContainRawValues ()
 
int SizeFromMap (Map *map)
 
WriteBarrierMode GetWriteBarrierMode (const DisallowHeapAllocation &promise)
 
void HeapObjectShortPrint (OStream &os)
 
 STATIC_ASSERT (kMapOffset==Internals::kHeapObjectMapOffset)
 
- Public Member Functions inherited from v8::internal::Object
bool IsObject () const
 
 INLINE (bool IsFixedArrayBase() const)
 
 INLINE (bool IsExternal() const)
 
 INLINE (bool IsAccessorInfo() const)
 
 INLINE (bool IsStruct() const)
 
 INLINE (bool IsSpecObject()) const
 
 INLINE (bool IsSpecFunction()) const
 
 INLINE (bool IsTemplateInfo()) const
 
 INLINE (bool IsNameDictionary() const)
 
 INLINE (bool IsSeededNumberDictionary() const)
 
 INLINE (bool IsUnseededNumberDictionary() const)
 
 INLINE (bool IsOrderedHashSet() const)
 
 INLINE (bool IsOrderedHashMap() const)
 
bool IsCallable () const
 
 INLINE (bool IsUndefined() const)
 
 INLINE (bool IsNull() const)
 
 INLINE (bool IsTheHole() const)
 
 INLINE (bool IsException() const)
 
 INLINE (bool IsUninitialized() const)
 
 INLINE (bool IsTrue() const)
 
 INLINE (bool IsFalse() const)
 
 INLINE (bool IsArgumentsMarker() const)
 
 INLINE (bool IsFiller() const)
 
double Number ()
 
 INLINE (bool IsNaN() const)
 
 INLINE (bool IsMinusZero() const)
 
bool ToInt32 (int32_t *value)
 
bool ToUint32 (uint32_t *value)
 
Representation OptimalRepresentation ()
 
bool FitsRepresentation (Representation representation)
 
Handle< HeapType > OptimalType (Isolate *isolate, Representation representation)
 
bool HasValidElements ()
 
bool HasSpecificClassOf (String *name)
 
bool BooleanValue ()
 
Object * GetHash ()
 
bool SameValue (Object *other)
 
bool SameValueZero (Object *other)
 
bool ToArrayIndex (uint32_t *index)
 
bool IsStringObjectWithCharacterAt (uint32_t index)
 
void VerifyApiCallResultType ()
 
void ShortPrint (FILE *out=stdout)
 
void ShortPrint (StringStream *accumulator)
 

Static Public Attributes

static const int kLengthOffset = kViewSize + kPointerSize
 
static const int kSize = kLengthOffset + kPointerSize
 
static const int kSizeWithInternalFields
 
- Static Public Attributes inherited from v8::internal::JSArrayBufferView
static const int kBufferOffset = JSObject::kHeaderSize
 
static const int kByteOffsetOffset = kBufferOffset + kPointerSize
 
static const int kByteLengthOffset = kByteOffsetOffset + kPointerSize
 
static const int kWeakNextOffset = kByteLengthOffset + kPointerSize
 
static const int kViewSize = kWeakNextOffset + kPointerSize
 
- Static Public Attributes inherited from v8::internal::JSObject
static const uint32_t kMaxElementCount = 0xffffffffu
 
static const uint32_t kMaxGap = 1024
 
static const int kMaxUncheckedFastElementsLength = 5000
 
static const int kMaxUncheckedOldFastElementsLength = 500
 
static const int kInitialMaxFastElementArray = 100000
 
static const int kInitialGlobalObjectUnusedPropertiesCount = 4
 
static const int kMaxInstanceSize = 255 * kPointerSize
 
static const int kFieldsAdded = 3
 
static const int kPropertiesOffset = HeapObject::kHeaderSize
 
static const int kElementsOffset = kPropertiesOffset + kPointerSize
 
static const int kHeaderSize = kElementsOffset + kPointerSize
 
- Static Public Attributes inherited from v8::internal::HeapObject
static const int kMapOffset = Object::kHeaderSize
 
static const int kHeaderSize = kMapOffset + kPointerSize
 
- Static Public Attributes inherited from v8::internal::Object
static const int kHeaderSize = 0
 

Private Member Functions

 DISALLOW_IMPLICIT_CONSTRUCTORS (JSTypedArray)
 

Static Private Member Functions

static Handle< JSArrayBuffer > MaterializeArrayBuffer (Handle< JSTypedArray > typed_array)
 

Additional Inherited Members

- Public Types inherited from v8::internal::JSObject
enum  ExecutableAccessorInfoHandling { DEFAULT_HANDLING , DONT_FORCE_FIELD }
 
enum  SetFastElementsCapacitySmiMode { kAllowSmiElements , kForceSmiElements , kDontAllowSmiElements }
 
enum  DeepCopyHints { kNoHints = 0 , kObjectIsShallow = 1 }
 
- Public Types inherited from v8::internal::JSReceiver
enum  DeleteMode { NORMAL_DELETION , STRICT_DELETION , FORCE_DELETION }
 
enum  KeyCollectionType { OWN_ONLY , INCLUDE_PROTOS }
 
- Public Types inherited from v8::internal::Object
enum  StoreFromKeyed { MAY_BE_STORE_FROM_KEYED , CERTAINLY_NOT_STORE_FROM_KEYED }
 
enum  StorePropertyMode { NORMAL_PROPERTY , SUPER_PROPERTY }
 
- Static Public Member Functions inherited from v8::internal::JSObject
static void ResetElements (Handle< JSObject > object)
 
static void SetMapAndElements (Handle< JSObject > object, Handle< Map > map, Handle< FixedArrayBase > elements)
 
static Handle< FixedArray > EnsureWritableFastElements (Handle< JSObject > object)
 
static Handle< Object > PrepareElementsForSort (Handle< JSObject > object, uint32_t limit)
 
static Handle< Object > PrepareSlowElementsForSort (Handle< JSObject > object, uint32_t limit)
 
static MUST_USE_RESULT MaybeHandle< Object > SetPropertyWithInterceptor (LookupIterator *it, Handle< Object > value)
 
static MUST_USE_RESULT MaybeHandle< Object > SetOwnPropertyIgnoreAttributes (Handle< JSObject > object, Handle< Name > key, Handle< Object > value, PropertyAttributes attributes, ExecutableAccessorInfoHandling handling=DEFAULT_HANDLING)
 
static void AddProperty (Handle< JSObject > object, Handle< Name > key, Handle< Object > value, PropertyAttributes attributes)
 
static void AllocateStorageForMap (Handle< JSObject > object, Handle< Map > map)
 
static void MigrateInstance (Handle< JSObject > instance)
 
static bool TryMigrateInstance (Handle< JSObject > instance)
 
static void SetNormalizedProperty (Handle< JSObject > object, Handle< Name > key, Handle< Object > value, PropertyDetails details)
 
static void OptimizeAsPrototype (Handle< JSObject > object, PrototypeOptimizationMode mode)
 
static void ReoptimizeIfPrototype (Handle< JSObject > object)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetPropertyAttributesWithInterceptor (Handle< JSObject > holder, Handle< Object > receiver, Handle< Name > name)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetPropertyAttributesWithFailedAccessCheck (LookupIterator *it)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetElementAttributeWithReceiver (Handle< JSObject > object, Handle< JSReceiver > receiver, uint32_t index, bool check_prototype)
 
static MUST_USE_RESULT MaybeHandle< Object > GetAccessor (Handle< JSObject > object, Handle< Name > name, AccessorComponent component)
 
static MaybeHandle< Object > DefineAccessor (Handle< JSObject > object, Handle< Name > name, Handle< Object > getter, Handle< Object > setter, PropertyAttributes attributes)
 
static MUST_USE_RESULT MaybeHandle< Object > SetAccessor (Handle< JSObject > object, Handle< AccessorInfo > info)
 
static MUST_USE_RESULT MaybeHandle< Object > GetPropertyWithInterceptor (Handle< JSObject > object, Handle< Object > receiver, Handle< Name > name)
 
static Handle< Object > SetHiddenProperty (Handle< JSObject > object, Handle< Name > key, Handle< Object > value)
 
static void DeleteHiddenProperty (Handle< JSObject > object, Handle< Name > key)
 
static bool HasHiddenProperties (Handle< JSObject > object)
 
static void SetIdentityHash (Handle< JSObject > object, Handle< Smi > hash)
 
static void ValidateElements (Handle< JSObject > object)
 
static void EnsureCanContainHeapObjectElements (Handle< JSObject > obj)
 
static void EnsureCanContainElements (Handle< JSObject > object, Object **elements, uint32_t count, EnsureElementsMode mode)
 
static void EnsureCanContainElements (Handle< JSObject > object, Handle< FixedArrayBase > elements, uint32_t length, EnsureElementsMode mode)
 
static void EnsureCanContainElements (Handle< JSObject > object, Arguments *arguments, uint32_t first_arg, uint32_t arg_count, EnsureElementsMode mode)
 
static int NewElementsCapacity (int old_capacity)
 
static MUST_USE_RESULT MaybeHandle< AccessorPair > GetOwnElementAccessorPair (Handle< JSObject > object, uint32_t index)
 
static MUST_USE_RESULT MaybeHandle< Object > SetFastElement (Handle< JSObject > object, uint32_t index, Handle< Object > value, StrictMode strict_mode, bool check_prototype)
 
static MUST_USE_RESULT MaybeHandle< Object > SetOwnElement (Handle< JSObject > object, uint32_t index, Handle< Object > value, StrictMode strict_mode)
 
static MUST_USE_RESULT MaybeHandle< Object > SetElement (Handle< JSObject > object, uint32_t index, Handle< Object > value, PropertyAttributes attributes, StrictMode strict_mode, bool check_prototype=true, SetPropertyMode set_mode=SET_PROPERTY)
 
static MUST_USE_RESULT MaybeHandle< Object > GetElementWithInterceptor (Handle< JSObject > object, Handle< Object > receiver, uint32_t index)
 
static Handle< FixedArray > SetFastElementsCapacityAndLength (Handle< JSObject > object, int capacity, int length, SetFastElementsCapacitySmiMode smi_mode)
 
static void SetFastDoubleElementsCapacityAndLength (Handle< JSObject > object, int capacity, int length)
 
static MUST_USE_RESULT MaybeHandle< JSObject > GetKeysForNamedInterceptor (Handle< JSObject > object, Handle< JSReceiver > receiver)
 
static MUST_USE_RESULT MaybeHandle< JSObject > GetKeysForIndexedInterceptor (Handle< JSObject > object, Handle< JSReceiver > receiver)
 
static MUST_USE_RESULT Maybe< bool > HasRealNamedProperty (Handle< JSObject > object, Handle< Name > key)
 
static MUST_USE_RESULT Maybe< bool > HasRealElementProperty (Handle< JSObject > object, uint32_t index)
 
static MUST_USE_RESULT Maybe< bool > HasRealNamedCallbackProperty (Handle< JSObject > object, Handle< Name > key)
 
static Handle< Map > GetElementsTransitionMap (Handle< JSObject > object, ElementsKind to_kind)
 
static void TransitionElementsKind (Handle< JSObject > object, ElementsKind to_kind)
 
static void MigrateToMap (Handle< JSObject > object, Handle< Map > new_map)
 
static void NormalizeProperties (Handle< JSObject > object, PropertyNormalizationMode mode, int expected_additional_properties)
 
static Handle< SeededNumberDictionary > NormalizeElements (Handle< JSObject > object)
 
static void MigrateSlowToFast (Handle< JSObject > object, int unused_property_fields)
 
static Handle< Object > FastPropertyAt (Handle< JSObject > object, Representation representation, FieldIndex index)
 
static MUST_USE_RESULT MaybeHandle< Object > SetPrototype (Handle< JSObject > object, Handle< Object > value, bool from_javascript)
 
static MUST_USE_RESULT MaybeHandle< Object > PreventExtensions (Handle< JSObject > object)
 
static MUST_USE_RESULT MaybeHandle< Object > Freeze (Handle< JSObject > object)
 
static void SetObserved (Handle< JSObject > object)
 
static Handle< JSObject > Copy (Handle< JSObject > object)
 
static MUST_USE_RESULT MaybeHandle< JSObject > DeepCopy (Handle< JSObject > object, AllocationSiteUsageContext *site_context, DeepCopyHints hints=kNoHints)
 
static MUST_USE_RESULT MaybeHandle< JSObject > DeepWalk (Handle< JSObject > object, AllocationSiteCreationContext *site_context)
 
static Handle< Object > GetDataProperty (Handle< JSObject > object, Handle< Name > key)
 
static Handle< Object > GetDataProperty (LookupIterator *it)
 
static void PrintElementsTransition (FILE *file, Handle< JSObject > object, ElementsKind from_kind, Handle< FixedArrayBase > from_elements, ElementsKind to_kind, Handle< FixedArrayBase > to_elements)
 
static void EnqueueChangeRecord (Handle< JSObject > object, const char *type, Handle< Name > name, Handle< Object > old_value)
 
static void MigrateToNewProperty (Handle< JSObject > object, Handle< Map > transition, Handle< Object > value)
 
- Static Public Member Functions inherited from v8::internal::JSReceiver
static MUST_USE_RESULT MaybeHandle< Object > SetElement (Handle< JSReceiver > object, uint32_t index, Handle< Object > value, PropertyAttributes attributes, StrictMode strict_mode)
 
static MUST_USE_RESULT Maybe< bool > HasProperty (Handle< JSReceiver > object, Handle< Name > name)
 
static MUST_USE_RESULT Maybe< bool > HasOwnProperty (Handle< JSReceiver >, Handle< Name > name)
 
static MUST_USE_RESULT Maybe< bool > HasElement (Handle< JSReceiver > object, uint32_t index)
 
static MUST_USE_RESULT Maybe< bool > HasOwnElement (Handle< JSReceiver > object, uint32_t index)
 
static MUST_USE_RESULT MaybeHandle< Object > DeleteProperty (Handle< JSReceiver > object, Handle< Name > name, DeleteMode mode=NORMAL_DELETION)
 
static MUST_USE_RESULT MaybeHandle< Object > DeleteElement (Handle< JSReceiver > object, uint32_t index, DeleteMode mode=NORMAL_DELETION)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetPropertyAttributes (Handle< JSReceiver > object, Handle< Name > name)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetPropertyAttributes (LookupIterator *it)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetOwnPropertyAttributes (Handle< JSReceiver > object, Handle< Name > name)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetElementAttribute (Handle< JSReceiver > object, uint32_t index)
 
static MUST_USE_RESULT Maybe< PropertyAttributes > GetOwnElementAttribute (Handle< JSReceiver > object, uint32_t index)
 
static Handle< Smi > GetOrCreateIdentityHash (Handle< JSReceiver > object)
 
static MUST_USE_RESULT MaybeHandle< FixedArray > GetKeys (Handle< JSReceiver > object, KeyCollectionType type)
 
- Static Public Member Functions inherited from v8::internal::HeapObject
static HeapObject * FromAddress (Address address)
 
static Object ** RawField (HeapObject *obj, int offset)
 
static void UpdateMapCodeCache (Handle< HeapObject > object, Handle< Name > name, Handle< Code > code)
 
- Static Public Member Functions inherited from v8::internal::Object
static Handle< Object > NewStorageFor (Isolate *isolate, Handle< Object > object, Representation representation)
 
static Handle< Object > WrapForRead (Isolate *isolate, Handle< Object > object, Representation representation)
 
static MaybeHandle< JSReceiver > ToObject (Isolate *isolate, Handle< Object > object)
 
static MaybeHandle< JSReceiver > ToObject (Isolate *isolate, Handle< Object > object, Handle< Context > context)
 
static MUST_USE_RESULT MaybeHandle< Smi > ToSmi (Isolate *isolate, Handle< Object > object)
 
static MUST_USE_RESULT MaybeHandle< Object > GetProperty (LookupIterator *it)
 
static MUST_USE_RESULT MaybeHandle< Object > SetProperty (Handle< Object > object, Handle< Name > key, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode=MAY_BE_STORE_FROM_KEYED)
 
static MUST_USE_RESULT MaybeHandle< Object > SetProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode, StorePropertyMode data_store_mode=NORMAL_PROPERTY)
 
static MUST_USE_RESULT MaybeHandle< Object > WriteToReadOnlyProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode)
 
static Handle< Object > SetDataProperty (LookupIterator *it, Handle< Object > value)
 
static MUST_USE_RESULT MaybeHandle< Object > AddDataProperty (LookupIterator *it, Handle< Object > value, PropertyAttributes attributes, StrictMode strict_mode, StoreFromKeyed store_mode)
 
static MUST_USE_RESULT MaybeHandle< Object > GetPropertyOrElement (Handle< Object > object, Handle< Name > key)
 
static MUST_USE_RESULT MaybeHandle< Object > GetProperty (Isolate *isolate, Handle< Object > object, const char *key)
 
static MUST_USE_RESULT MaybeHandle< Object > GetProperty (Handle< Object > object, Handle< Name > key)
 
static MUST_USE_RESULT MaybeHandle< Object > GetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< JSObject > holder, Handle< Object > structure)
 
static MUST_USE_RESULT MaybeHandle< Object > SetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< Object > value, Handle< JSObject > holder, Handle< Object > structure, StrictMode strict_mode)
 
static MUST_USE_RESULT MaybeHandle< Object > GetPropertyWithDefinedGetter (Handle< Object > receiver, Handle< JSReceiver > getter)
 
static MUST_USE_RESULT MaybeHandle< Object > SetPropertyWithDefinedSetter (Handle< Object > receiver, Handle< JSReceiver > setter, Handle< Object > value)
 
static MUST_USE_RESULT MaybeHandle< Object > GetElement (Isolate *isolate, Handle< Object > object, uint32_t index)
 
static MUST_USE_RESULT MaybeHandle< Object > GetElementWithReceiver (Isolate *isolate, Handle< Object > object, Handle< Object > receiver, uint32_t index)
 
static Handle< Smi > GetOrCreateHash (Isolate *isolate, Handle< Object > object)
 
- Protected Member Functions inherited from v8::internal::JSArrayBufferView
void NeuterView ()
 
- Protected Member Functions inherited from v8::internal::HeapObject
void IteratePointers (ObjectVisitor *v, int start, int end)
 
void IteratePointer (ObjectVisitor *v, int offset)
 
void IterateNextCodeLink (ObjectVisitor *v, int offset)
 

Detailed Description

Definition at line 9927 of file objects.h.

Member Function Documentation

◆ DISALLOW_IMPLICIT_CONSTRUCTORS()

v8::internal::JSTypedArray::DISALLOW_IMPLICIT_CONSTRUCTORS ( JSTypedArray  )
private

◆ element_size()

size_t v8::internal::JSTypedArray::element_size ( )

Definition at line 14392 of file objects.cc.

14392  {
14393  switch (elements()->map()->instance_type()) {
14394 #define INSTANCE_TYPE_TO_ELEMENT_SIZE(Type, type, TYPE, ctype, size) \
14395  case EXTERNAL_##TYPE##_ARRAY_TYPE: \
14396  return size;
14397 
14398  TYPED_ARRAYS(INSTANCE_TYPE_TO_ELEMENT_SIZE)
14399 #undef INSTANCE_TYPE_TO_ELEMENT_SIZE
14400 
14401  default:
14402  UNREACHABLE();
14403  return 0;
14404  }
14405 }
UNREACHABLE
#define UNREACHABLE()
Definition: logging.h:30
INSTANCE_TYPE_TO_ELEMENT_SIZE
#define INSTANCE_TYPE_TO_ELEMENT_SIZE(Type, type, TYPE, ctype, size)
TYPED_ARRAYS
#define TYPED_ARRAYS(V)
Definition: objects.h:4433

References INSTANCE_TYPE_TO_ELEMENT_SIZE, v8::internal::HeapObject::map(), TYPED_ARRAYS, and UNREACHABLE.

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◆ GetBuffer()

Handle< JSArrayBuffer > v8::internal::JSTypedArray::GetBuffer ( )

Definition at line 16326 of file objects.cc.

16326  {
16327  Handle<Object> result(buffer(), GetIsolate());
16328  if (*result != Smi::FromInt(0)) {
16329  DCHECK(IsExternalArrayElementsKind(map()->elements_kind()));
16330  return Handle<JSArrayBuffer>::cast(result);
16331  }
16332  Handle<JSTypedArray> self(this);
16333  return MaterializeArrayBuffer(self);
16334 }
v8::internal::Handle::cast
static Handle< T > cast(Handle< S > that)
Definition: handles.h:116
v8::internal::HeapObject::GetIsolate
Isolate * GetIsolate() const
Definition: objects-inl.h:1387
v8::internal::JSTypedArray::MaterializeArrayBuffer
static Handle< JSArrayBuffer > MaterializeArrayBuffer(Handle< JSTypedArray > typed_array)
Definition: objects.cc:16292
v8::internal::Smi::FromInt
static Smi * FromInt(int value)
Definition: objects-inl.h:1321
DCHECK
#define DCHECK(condition)
Definition: logging.h:205
v8::internal::IsExternalArrayElementsKind
bool IsExternalArrayElementsKind(ElementsKind kind)
Definition: elements-kind.h:95

References v8::internal::Handle< T >::cast(), DCHECK, v8::internal::Smi::FromInt(), v8::internal::HeapObject::GetIsolate(), v8::internal::IsExternalArrayElementsKind(), v8::internal::HeapObject::map(), and MaterializeArrayBuffer().

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◆ MaterializeArrayBuffer()

Handle< JSArrayBuffer > v8::internal::JSTypedArray::MaterializeArrayBuffer ( Handle< JSTypedArray >  typed_array)
staticprivate

Definition at line 16292 of file objects.cc.

16293  {
16294 
16295  Handle<Map> map(typed_array->map());
16296  Isolate* isolate = typed_array->GetIsolate();
16297 
16298  DCHECK(IsFixedTypedArrayElementsKind(map->elements_kind()));
16299 
16300  Handle<Map> new_map = Map::TransitionElementsTo(
16301  map,
16302  FixedToExternalElementsKind(map->elements_kind()));
16303 
16304  Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer();
16305  Handle<FixedTypedArrayBase> fixed_typed_array(
16306  FixedTypedArrayBase::cast(typed_array->elements()));
16307  Runtime::SetupArrayBufferAllocatingData(isolate, buffer,
16308  fixed_typed_array->DataSize(), false);
16309  memcpy(buffer->backing_store(),
16310  fixed_typed_array->DataPtr(),
16311  fixed_typed_array->DataSize());
16312  Handle<ExternalArray> new_elements =
16313  isolate->factory()->NewExternalArray(
16314  fixed_typed_array->length(), typed_array->type(),
16315  static_cast<uint8_t*>(buffer->backing_store()));
16316 
16317  buffer->set_weak_first_view(*typed_array);
16318  DCHECK(typed_array->weak_next() == isolate->heap()->undefined_value());
16319  typed_array->set_buffer(*buffer);
16320  JSObject::SetMapAndElements(typed_array, new_map, new_elements);
16321 
16322  return buffer;
16323 }
v8::internal::JSObject::SetMapAndElements
static void SetMapAndElements(Handle< JSObject > object, Handle< Map > map, Handle< FixedArrayBase > elements)
Definition: objects-inl.h:1814
v8::internal::Map::elements_kind
ElementsKind elements_kind()
Definition: objects.h:5730
v8::internal::Map::TransitionElementsTo
static Handle< Map > TransitionElementsTo(Handle< Map > map, ElementsKind to_kind)
Definition: objects.cc:3321
v8::internal::Runtime::SetupArrayBufferAllocatingData
static bool SetupArrayBufferAllocatingData(Isolate *isolate, Handle< JSArrayBuffer > array_buffer, size_t allocated_length, bool initialize=true)
Definition: runtime-typedarray.cc:59
v8::internal::FixedToExternalElementsKind
static ElementsKind FixedToExternalElementsKind(ElementsKind elements_kind)
Definition: objects.cc:16277
v8::internal::IsFixedTypedArrayElementsKind
bool IsFixedTypedArrayElementsKind(ElementsKind kind)
Definition: elements-kind.h:107

References DCHECK, v8::internal::Map::elements_kind(), v8::internal::Isolate::factory(), v8::internal::FixedToExternalElementsKind(), v8::internal::Isolate::heap(), v8::internal::IsFixedTypedArrayElementsKind(), v8::internal::HeapObject::map(), v8::internal::JSObject::SetMapAndElements(), v8::internal::Runtime::SetupArrayBufferAllocatingData(), and v8::internal::Map::TransitionElementsTo().

Referenced by GetBuffer().

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◆ Neuter()

void v8::internal::JSTypedArray::Neuter ( )

Definition at line 16270 of file objects.cc.

16270  {
16271  NeuterView();
16272  set_length(Smi::FromInt(0));
16273  set_elements(GetHeap()->EmptyExternalArrayForMap(map()));
16274 }
v8::internal::HeapObject::GetHeap
Heap * GetHeap() const
Definition: objects-inl.h:1379

References v8::internal::Smi::FromInt(), v8::internal::HeapObject::GetHeap(), v8::internal::HeapObject::map(), and v8::internal::JSArrayBufferView::NeuterView().

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◆ type()

ExternalArrayType v8::internal::JSTypedArray::type ( )

Definition at line 14375 of file objects.cc.

14375  {
14376  switch (elements()->map()->instance_type()) {
14377 #define INSTANCE_TYPE_TO_ARRAY_TYPE(Type, type, TYPE, ctype, size) \
14378  case EXTERNAL_##TYPE##_ARRAY_TYPE: \
14379  case FIXED_##TYPE##_ARRAY_TYPE: \
14380  return kExternal##Type##Array;
14381 
14382  TYPED_ARRAYS(INSTANCE_TYPE_TO_ARRAY_TYPE)
14383 #undef INSTANCE_TYPE_TO_ARRAY_TYPE
14384 
14385  default:
14386  UNREACHABLE();
14387  return static_cast<ExternalArrayType>(-1);
14388  }
14389 }
v8::ExternalArrayType
ExternalArrayType
Definition: v8.h:2217
INSTANCE_TYPE_TO_ARRAY_TYPE
#define INSTANCE_TYPE_TO_ARRAY_TYPE(Type, type, TYPE, ctype, size)

References INSTANCE_TYPE_TO_ARRAY_TYPE, v8::internal::HeapObject::map(), TYPED_ARRAYS, and UNREACHABLE.

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Member Data Documentation

◆ kLengthOffset

const int v8::internal::JSTypedArray::kLengthOffset = kViewSize + kPointerSize
static

Definition at line 9946 of file objects.h.

Referenced by v8::internal::FINAL< kOperandKind, kNumCachedOperands >::ForJSTypedArrayLength(), and v8::internal::Accessors::IsJSObjectFieldAccessor().

◆ kSize

const int v8::internal::JSTypedArray::kSize = kLengthOffset + kPointerSize
static

Definition at line 9947 of file objects.h.

Referenced by v8::internal::JSObject::GetHeaderSize().

◆ kSizeWithInternalFields

const int v8::internal::JSTypedArray::kSizeWithInternalFields
static
Initial value:
=
kSize + v8::ArrayBufferView::kInternalFieldCount * kPointerSize
v8::ArrayBufferView::kInternalFieldCount
static const int kInternalFieldCount
Definition: v8.h:2992
v8::internal::JSTypedArray::kSize
static const int kSize
Definition: objects.h:9947
v8::internal::kPointerSize
const int kPointerSize
Definition: globals.h:129

Definition at line 9949 of file objects.h.

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