V8 Project
v8::internal::ExternalString Class Reference

#include <objects.h>

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

Public Member Functions

bool is_short ()
 
 STATIC_ASSERT (kResourceOffset==Internals::kStringResourceOffset)
 
- Public Member Functions inherited from v8::internal::String
 STATIC_ASSERT ((kArrayIndexLengthBits > 0))
 
 STATIC_ASSERT (IS_POWER_OF_TWO(kMaxCachedArrayIndexLength+1))
 
int length () const
 
void set_length (int value)
 
int synchronized_length () const
 
void synchronized_set_length (int value)
 
bool IsOneByteRepresentation () const
 
bool IsTwoByteRepresentation () const
 
bool IsOneByteRepresentationUnderneath ()
 
bool IsTwoByteRepresentationUnderneath ()
 
bool HasOnlyOneByteChars ()
 
void Set (int index, uint16_t value)
 
 INLINE (uint16_t Get(int index))
 
FlatContent GetFlatContent ()
 
StringGetUnderlying ()
 
bool MarkAsUndetectable ()
 
bool Equals (String *other)
 
bool IsUtf8EqualTo (Vector< const char > str, bool allow_prefix_match=false)
 
bool IsOneByteEqualTo (Vector< const uint8_t > str)
 
bool IsTwoByteEqualTo (Vector< const uc16 > str)
 
SmartArrayPointer< char > ToCString (AllowNullsFlag allow_nulls, RobustnessFlag robustness_flag, int offset, int length, int *length_output=0)
 
SmartArrayPointer< char > ToCString (AllowNullsFlag allow_nulls=DISALLOW_NULLS, RobustnessFlag robustness_flag=FAST_STRING_TRAVERSAL, int *length_output=0)
 
SmartArrayPointer< uc16ToWideCString (RobustnessFlag robustness_flag=FAST_STRING_TRAVERSAL)
 
bool ComputeArrayIndex (uint32_t *index)
 
bool MakeExternal (v8::String::ExternalStringResource *resource)
 
bool MakeExternal (v8::String::ExternalOneByteStringResource *resource)
 
bool AsArrayIndex (uint32_t *index)
 
void PrintOn (FILE *out)
 
bool LooksValid ()
 
void StringShortPrint (StringStream *accumulator)
 
void PrintUC16 (OStream &os, int start=0, int end=-1)
 
bool IsFlat ()
 
 STATIC_ASSERT (kMaxArrayIndexSize<(1<< kArrayIndexLengthBits))
 
const uc16GetTwoByteData (unsigned start)
 
void SetForwardedInternalizedString (String *string)
 
StringGetForwardedInternalizedString ()
 
- Public Member Functions inherited from v8::internal::Name
uint32_t hash_field ()
 
void set_hash_field (uint32_t value)
 
bool HasHashCode ()
 
uint32_t Hash ()
 
bool Equals (Name *other)
 
bool AsArrayIndex (uint32_t *index)
 
bool IsOwn ()
 
 STATIC_ASSERT ((kArrayIndexLengthBits > 0))
 
 STATIC_ASSERT (IS_POWER_OF_TWO(kMaxCachedArrayIndexLength+1))
 
- Public Member Functions inherited from v8::internal::HeapObject
Mapmap () const
 
void set_map (Map *value)
 
void set_map_no_write_barrier (Map *value)
 
Mapsynchronized_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)
 
HeapGetHeap () const
 
IsolateGetIsolate () 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< HeapTypeOptimalType (Isolate *isolate, Representation representation)
 
bool HasValidElements ()
 
bool HasSpecificClassOf (String *name)
 
bool BooleanValue ()
 
ObjectGetHash ()
 
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 kResourceOffset = POINTER_SIZE_ALIGN(String::kSize)
 
static const int kShortSize = kResourceOffset + kPointerSize
 
static const int kResourceDataOffset = kResourceOffset + kPointerSize
 
static const int kSize = kResourceDataOffset + kPointerSize
 
static const int kMaxShortLength
 
- Static Public Attributes inherited from v8::internal::String
static const int kMaxCachedArrayIndexLength = 7
 
static const int kArrayIndexValueBits = 24
 
static const int kArrayIndexLengthBits
 
static const unsigned int kContainsCachedArrayIndexMask
 
static const int kLengthOffset = Name::kSize
 
static const int kSize = kLengthOffset + kPointerSize
 
static const int kMaxArrayIndexSize = 10
 
static const int32_t kMaxOneByteCharCode = unibrow::Latin1::kMaxChar
 
static const uint32_t kMaxOneByteCharCodeU = unibrow::Latin1::kMaxChar
 
static const int kMaxUtf16CodeUnit = 0xffff
 
static const uint32_t kMaxUtf16CodeUnitU = kMaxUtf16CodeUnit
 
static const int kEmptyStringHash = kIsNotArrayIndexMask
 
static const int kMaxLength = (1 << 28) - 16
 
static const int kMaxHashCalcLength = 16383
 
static const int kMaxShortPrintLength = 1024
 
- Static Public Attributes inherited from v8::internal::Name
static const int kHashFieldOffset = HeapObject::kHeaderSize
 
static const int kSize = kHashFieldOffset + kPointerSize
 
static const int kHashNotComputedMask = 1
 
static const int kIsNotArrayIndexMask = 1 << 1
 
static const int kNofHashBitFields = 2
 
static const int kHashShift = kNofHashBitFields
 
static const uint32_t kHashBitMask = 0xffffffffu >> kHashShift
 
static const int kMaxCachedArrayIndexLength = 7
 
static const int kArrayIndexValueBits = 24
 
static const int kArrayIndexLengthBits
 
static const unsigned int kContainsCachedArrayIndexMask
 
static const int kEmptyHashField
 
- 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 (ExternalString)
 

Additional Inherited Members

- Public Types inherited from v8::internal::String
enum  Encoding { ONE_BYTE_ENCODING , TWO_BYTE_ENCODING }
 
- 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::String
static Handle< StringFlatten (Handle< String > string, PretenureFlag pretenure=NOT_TENURED)
 
static bool Equals (Handle< String > one, Handle< String > two)
 
template<typename sinkchar >
static void WriteToFlat (String *source, sinkchar *sink, int from, int to)
 
static int NonAsciiStart (const char *chars, int length)
 
static bool IsAscii (const char *chars, int length)
 
static bool IsAscii (const uint8_t *chars, int length)
 
static int NonOneByteStart (const uc16 *chars, int length)
 
static bool IsOneByte (const uc16 *chars, int length)
 
template<class Visitor >
static ConsStringVisitFlat (Visitor *visitor, String *string, int offset=0)
 
static Handle< FixedArrayCalculateLineEnds (Handle< String > string, bool include_ending_line)
 
- Static Public Member Functions inherited from v8::internal::Name
static bool Equals (Handle< Name > one, Handle< Name > two)
 
- Static Public Member Functions inherited from v8::internal::HeapObject
static HeapObjectFromAddress (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< ObjectNewStorageFor (Isolate *isolate, Handle< Object > object, Representation representation)
 
static Handle< ObjectWrapForRead (Isolate *isolate, Handle< Object > object, Representation representation)
 
static MaybeHandle< JSReceiverToObject (Isolate *isolate, Handle< Object > object)
 
static MaybeHandle< JSReceiverToObject (Isolate *isolate, Handle< Object > object, Handle< Context > context)
 
static MUST_USE_RESULT MaybeHandle< SmiToSmi (Isolate *isolate, Handle< Object > object)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetProperty (LookupIterator *it)
 
static MUST_USE_RESULT MaybeHandle< ObjectSetProperty (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< ObjectSetProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode, StoreFromKeyed store_mode, StorePropertyMode data_store_mode=NORMAL_PROPERTY)
 
static MUST_USE_RESULT MaybeHandle< ObjectWriteToReadOnlyProperty (LookupIterator *it, Handle< Object > value, StrictMode strict_mode)
 
static Handle< ObjectSetDataProperty (LookupIterator *it, Handle< Object > value)
 
static MUST_USE_RESULT MaybeHandle< ObjectAddDataProperty (LookupIterator *it, Handle< Object > value, PropertyAttributes attributes, StrictMode strict_mode, StoreFromKeyed store_mode)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetPropertyOrElement (Handle< Object > object, Handle< Name > key)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetProperty (Isolate *isolate, Handle< Object > object, const char *key)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetProperty (Handle< Object > object, Handle< Name > key)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< JSObject > holder, Handle< Object > structure)
 
static MUST_USE_RESULT MaybeHandle< ObjectSetPropertyWithAccessor (Handle< Object > receiver, Handle< Name > name, Handle< Object > value, Handle< JSObject > holder, Handle< Object > structure, StrictMode strict_mode)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetPropertyWithDefinedGetter (Handle< Object > receiver, Handle< JSReceiver > getter)
 
static MUST_USE_RESULT MaybeHandle< ObjectSetPropertyWithDefinedSetter (Handle< Object > receiver, Handle< JSReceiver > setter, Handle< Object > value)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetElement (Isolate *isolate, Handle< Object > object, uint32_t index)
 
static MUST_USE_RESULT MaybeHandle< ObjectGetElementWithReceiver (Isolate *isolate, Handle< Object > object, Handle< Object > receiver, uint32_t index)
 
static Handle< SmiGetOrCreateHash (Isolate *isolate, Handle< Object > object)
 
- 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)
 
- Static Protected Member Functions inherited from v8::internal::Name
static bool IsHashFieldComputed (uint32_t field)
 

Detailed Description

Definition at line 9131 of file objects.h.

Member Function Documentation

◆ DISALLOW_IMPLICIT_CONSTRUCTORS()

v8::internal::ExternalString::DISALLOW_IMPLICIT_CONSTRUCTORS ( ExternalString  )
private

◆ is_short()

bool v8::internal::ExternalString::is_short ( )
inline

Definition at line 3571 of file objects-inl.h.

3571  {
3572  InstanceType type = map()->instance_type();
3574 }
InstanceType instance_type()
Definition: objects-inl.h:4323
const uint32_t kShortExternalStringTag
Definition: objects.h:590
const uint32_t kShortExternalStringMask
Definition: objects.h:589

◆ STATIC_ASSERT()

v8::internal::ExternalString::STATIC_ASSERT ( kResourceOffset  = =Internals::kStringResourceOffset)

Member Data Documentation

◆ kMaxShortLength

const int v8::internal::ExternalString::kMaxShortLength
static
Initial value:
=
static const int kShortSize
Definition: objects.h:9137
static const int kHeaderSize
Definition: objects.h:8941
const int kCharSize
Definition: globals.h:122

Definition at line 9141 of file objects.h.

◆ kResourceDataOffset

const int v8::internal::ExternalString::kResourceDataOffset = kResourceOffset + kPointerSize
static

Definition at line 9138 of file objects.h.

◆ kResourceOffset

const int v8::internal::ExternalString::kResourceOffset = POINTER_SIZE_ALIGN(String::kSize)
static

Definition at line 9136 of file objects.h.

Referenced by v8::internal::Heap::FinalizeExternalString().

◆ kShortSize

const int v8::internal::ExternalString::kShortSize = kResourceOffset + kPointerSize
static

Definition at line 9137 of file objects.h.

Referenced by v8::String::CanMakeExternal(), and v8::internal::String::MakeExternal().

◆ kSize

const int v8::internal::ExternalString::kSize = kResourceDataOffset + kPointerSize
static

Definition at line 9139 of file objects.h.

Referenced by v8::internal::String::MakeExternal().


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