V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
Classes | Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | List of all members
v8::internal::AllocationSite Class Reference
Inheritance diagram for v8::internal::AllocationSite:
v8::internal::Struct v8::internal::NeverReadOnlySpaceObject v8::internal::HeapObject v8::internal::Object

Classes

class  BodyDescriptor
 
class  DeoptDependentCodeBit
 
class  DoNotInlineBit
 
class  ElementsKindBits
 
class  MementoFoundCountBits
 
class  PretenureDecisionBits
 

Public Types

enum  PretenureDecision {
  kUndecided = 0, kDontTenure = 1, kMaybeTenure = 2, kTenure = 3,
  kZombie = 4, kLastPretenureDecisionValue = kZombie
}
 
- Public Types inherited from v8::internal::Object
enum  Conversion { kToNumber, kToNumeric }
 

Public Member Functions

const char * PretenureDecisionName (PretenureDecision decision)
 
void Initialize ()
 
bool HasWeakNext () const
 
bool IsNested ()
 
 STATIC_ASSERT (PretenureDecisionBits::kMax >=kLastPretenureDecisionValue)
 
bool IncrementMementoFoundCount (int increment=1)
 
void IncrementMementoCreateCount ()
 
PretenureFlag GetPretenureMode () const
 
void ResetPretenureDecision ()
 
PretenureDecision pretenure_decision () const
 
void set_pretenure_decision (PretenureDecision decision)
 
bool deopt_dependent_code () const
 
void set_deopt_dependent_code (bool deopt)
 
int memento_found_count () const
 
void set_memento_found_count (int count)
 
int memento_create_count () const
 
void set_memento_create_count (int count)
 
bool IsZombie () const
 
bool IsMaybeTenure () const
 
void MarkZombie ()
 
bool MakePretenureDecision (PretenureDecision current_decision, double ratio, bool maximum_size_scavenge)
 
bool DigestPretenuringFeedback (bool maximum_size_scavenge)
 
ElementsKind GetElementsKind () const
 
void SetElementsKind (ElementsKind kind)
 
bool CanInlineCall () const
 
void SetDoNotInlineCall ()
 
bool PointsToLiteral () const
 
- Public Member Functions inherited from v8::internal::Struct
void InitializeBody (int object_size)
 
void BriefPrintDetails (std::ostream &os)
 
- Public Member Functions inherited from v8::internal::HeapObject
Map map () const
 
void set_map (Map value)
 
ObjectSlot map_slot ()
 
void set_map_no_write_barrier (Map value)
 
Map synchronized_map () const
 
MapWord synchronized_map_word () const
 
void synchronized_set_map (Map value)
 
void synchronized_set_map_word (MapWord map_word)
 
void set_map_after_allocation (Map value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)
 
MapWord map_word () const
 
void set_map_word (MapWord map_word)
 
ReadOnlyRoots GetReadOnlyRoots () const
 
V8_INLINE bool IsExternal (Isolate *isolate) const
 
V8_INLINE bool IsNullOrUndefined (Isolate *isolate) const
 
V8_INLINE bool IsNullOrUndefined (ReadOnlyRoots roots) const
 
V8_INLINE bool IsNullOrUndefined () const
 
Address address () const
 
void Iterate (ObjectVisitor *v)
 
template<typename ObjectVisitor >
void IterateFast (ObjectVisitor *v)
 
void IterateBody (ObjectVisitor *v)
 
void IterateBody (Map map, int object_size, ObjectVisitor *v)
 
template<typename ObjectVisitor >
void IterateBodyFast (ObjectVisitor *v)
 
template<typename ObjectVisitor >
void IterateBodyFast (Map map, int object_size, ObjectVisitor *v)
 
bool IsValidSlot (Map map, int offset)
 
int Size () const
 
int SizeFromMap (Map map) const
 
ObjectSlot RawField (int byte_offset) const
 
MaybeObjectSlot RawMaybeWeakField (int byte_offset) const
 
WriteBarrierMode GetWriteBarrierMode (const DisallowHeapAllocation &promise)
 
void HeapObjectShortPrint (std::ostream &os)
 
bool NeedsRehashing () const
 
bool CanBeRehashed () const
 
void RehashBasedOnMap (Isolate *isolate)
 
 STATIC_ASSERT (kMapOffset==Internals::kHeapObjectMapOffset)
 
Address GetFieldAddress (int field_offset) const
 
- Public Member Functions inherited from v8::internal::Object
bool IsObject () const
 
Address ptr () const
 
V8_INLINE bool IsExternal (Isolate *isolate) const
 
V8_INLINE bool IsNullOrUndefined (Isolate *isolate) const
 
V8_INLINE bool IsNullOrUndefined (ReadOnlyRoots roots) const
 
V8_INLINE bool IsNullOrUndefined () const
 
V8_INLINE bool IsSmallOrderedHashTable () const
 
double Number () const
 
V8_INLINE bool IsNaN () const
 
V8_INLINE bool IsMinusZero () const
 
V8_EXPORT_PRIVATE bool ToInt32 (int32_t *value)
 
bool ToUint32 (uint32_t *value) const
 
Representation OptimalRepresentation ()
 
ElementsKind OptimalElementsKind ()
 
bool FitsRepresentation (Representation representation)
 
bool KeyEquals (Object *other)
 
bool FilterKey (PropertyFilter filter)
 
Handle< FieldType > OptimalType (Isolate *isolate, Representation representation)
 
bool HasValidElements ()
 
bool BooleanValue (Isolate *isolate)
 
bool StrictEquals (Object *that)
 
Object * GetHash ()
 
Smi GetOrCreateHash (Isolate *isolate)
 
V8_EXPORT_PRIVATE bool SameValue (Object *other)
 
bool SameValueZero (Object *other)
 
bool ToArrayLength (uint32_t *index) const
 
V8_WARN_UNUSED_RESULT bool ToArrayIndex (uint32_t *index) const
 
bool IterationHasObservableEffects ()
 
void VerifyApiCallResultType ()
 
void ShortPrint (FILE *out=stdout)
 
void ShortPrint (StringStream *accumulator)
 
void ShortPrint (std::ostream &os)
 
void Print ()
 
void Print (std::ostream &os)
 
- Public Member Functions inherited from v8::internal::NeverReadOnlySpaceObject
Heap * GetHeap () const
 
Isolate * GetIsolate () const
 

Static Public Member Functions

template<AllocationSiteUpdateMode update_or_check = AllocationSiteUpdateMode::kUpdate>
static bool DigestTransitionFeedback (Handle< AllocationSite > site, ElementsKind to_kind)
 
static bool ShouldTrack (ElementsKind boilerplate_elements_kind)
 
static bool ShouldTrack (ElementsKind from, ElementsKind to)
 
static bool CanTrack (InstanceType type)
 
- Static Public Member Functions inherited from v8::internal::HeapObject
static HeapObject * FromAddress (Address address)
 
static ObjectSlot RawField (const HeapObject *obj, int offset)
 
static MaybeObjectSlot RawMaybeWeakField (HeapObject *obj, int offset)
 
static AllocationAlignment RequiredAlignment (Map map)
 
- Static Public Member Functions inherited from v8::internal::Object
V8_INLINE static V8_WARN_UNUSED_RESULT Maybe< bool > IsArray (Handle< Object > object)
 
static Handle< Object > NewStorageFor (Isolate *isolate, Handle< Object > object, Representation representation)
 
static Handle< Object > WrapForRead (Isolate *isolate, Handle< Object > object, Representation representation)
 
static V8_WARN_UNUSED_RESULT Maybe< ComparisonResult > Compare (Isolate *isolate, Handle< Object > x, Handle< Object > y)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > Equals (Isolate *isolate, Handle< Object > x, Handle< Object > y)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< JSReceiver > ToObject (Isolate *isolate, Handle< Object > object, const char *method_name=nullptr)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< JSReceiver > ToObject (Isolate *isolate, Handle< Object > object, Handle< Context > native_context, const char *method_name=nullptr)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< JSReceiver > ConvertReceiver (Isolate *isolate, Handle< Object > object)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Name > ToName (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToPrimitive (Handle< Object > input, ToPrimitiveHint hint=ToPrimitiveHint::kDefault)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToNumber (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToNumeric (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToInteger (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToInt32 (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToUint32 (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< String > ToString (Isolate *isolate, Handle< Object > input)
 
static Handle< String > NoSideEffectsToString (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToPropertyKey (Isolate *isolate, Handle< Object > value)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToLength (Isolate *isolate, Handle< Object > input)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ToIndex (Isolate *isolate, Handle< Object > input, MessageTemplate error_index)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetMethod (Handle< JSReceiver > receiver, Handle< Name > name)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< FixedArray > CreateListFromArrayLike (Isolate *isolate, Handle< Object > object, ElementTypes element_types)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetLengthFromArrayLike (Isolate *isolate, Handle< JSReceiver > object)
 
static Handle< String > TypeOf (Isolate *isolate, Handle< Object > object)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > Add (Isolate *isolate, Handle< Object > lhs, Handle< Object > rhs)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > GreaterThan (Isolate *isolate, Handle< Object > x, Handle< Object > y)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > GreaterThanOrEqual (Isolate *isolate, Handle< Object > x, Handle< Object > y)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > LessThan (Isolate *isolate, Handle< Object > x, Handle< Object > y)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > LessThanOrEqual (Isolate *isolate, Handle< Object > x, Handle< Object > y)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > OrdinaryHasInstance (Isolate *isolate, Handle< Object > callable, Handle< Object > object)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > InstanceOf (Isolate *isolate, Handle< Object > object, Handle< Object > callable)
 
V8_EXPORT_PRIVATE static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetProperty (LookupIterator *it, OnNonExistent on_non_existent=OnNonExistent::kReturnUndefined)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > SetProperty (LookupIterator *it, Handle< Object > value, LanguageMode language_mode, StoreOrigin store_origin)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > SetProperty (Isolate *isolate, Handle< Object > object, Handle< Name > name, Handle< Object > value, LanguageMode language_mode, StoreOrigin store_origin=StoreOrigin::kMaybeKeyed)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > SetPropertyOrElement (Isolate *isolate, Handle< Object > object, Handle< Name > name, Handle< Object > value, LanguageMode language_mode, StoreOrigin store_origin=StoreOrigin::kMaybeKeyed)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > SetSuperProperty (LookupIterator *it, Handle< Object > value, LanguageMode language_mode, StoreOrigin store_origin)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > CannotCreateProperty (Isolate *isolate, Handle< Object > receiver, Handle< Object > name, Handle< Object > value, ShouldThrow should_throw)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > WriteToReadOnlyProperty (LookupIterator *it, Handle< Object > value, ShouldThrow should_throw)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > WriteToReadOnlyProperty (Isolate *isolate, Handle< Object > receiver, Handle< Object > name, Handle< Object > value, ShouldThrow should_throw)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > RedefineIncompatibleProperty (Isolate *isolate, Handle< Object > name, Handle< Object > value, ShouldThrow should_throw)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > SetDataProperty (LookupIterator *it, Handle< Object > value)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > AddDataProperty (LookupIterator *it, Handle< Object > value, PropertyAttributes attributes, ShouldThrow should_throw, StoreOrigin store_origin)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetPropertyOrElement (Isolate *isolate, Handle< Object > object, Handle< Name > name)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetPropertyOrElement (Handle< Object > receiver, Handle< Name > name, Handle< JSReceiver > holder)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetProperty (Isolate *isolate, Handle< Object > object, Handle< Name > name)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetPropertyWithAccessor (LookupIterator *it)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > SetPropertyWithAccessor (LookupIterator *it, Handle< Object > value, ShouldThrow should_throw)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetPropertyWithDefinedGetter (Handle< Object > receiver, Handle< JSReceiver > getter)
 
static V8_WARN_UNUSED_RESULT Maybe< bool > SetPropertyWithDefinedSetter (Handle< Object > receiver, Handle< JSReceiver > setter, Handle< Object > value, ShouldThrow should_throw)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > GetElement (Isolate *isolate, Handle< Object > object, uint32_t index)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > SetElement (Isolate *isolate, Handle< Object > object, uint32_t index, Handle< Object > value, LanguageMode language_mode)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > ArraySpeciesConstructor (Isolate *isolate, Handle< Object > original_array)
 
static V8_WARN_UNUSED_RESULT MaybeHandle< Object > SpeciesConstructor (Isolate *isolate, Handle< JSReceiver > recv, Handle< JSFunction > default_ctor)
 

Static Public Attributes

static const uint32_t kMaximumArrayBytesToPretransition = 8 * 1024
 
static const double kPretenureRatio = 0.85
 
static const int kPretenureMinimumCreated = 100
 
- 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
 

Detailed Description

Definition at line 18 of file allocation-site.h.

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