Internals Class Reference

#include <v8-internal.h>

Static Public Member Functions
static V8_EXPORT void	CheckInitializedImpl (v8::Isolate *isolate)
static V8_INLINE void	CheckInitialized (v8::Isolate *isolate)
static V8_INLINE bool	HasHeapObjectTag (const internal::Address value)
static V8_INLINE int	SmiValue (const internal::Address value)
static constexpr V8_INLINE internal::Address	IntToSmi (int value)
static constexpr V8_INLINE bool	IsValidSmi (intptr_t value)
static V8_INLINE int	GetInstanceType (const internal::Address obj)
static V8_INLINE int	GetOddballKind (const internal::Address obj)
static V8_INLINE bool	IsExternalTwoByteString (int instance_type)
static V8_INLINE uint8_t	GetNodeFlag (internal::Address *obj, int shift)
static V8_INLINE void	UpdateNodeFlag (internal::Address *obj, bool value, int shift)
static V8_INLINE uint8_t	GetNodeState (internal::Address *obj)
static V8_INLINE void	UpdateNodeState (internal::Address *obj, uint8_t value)
static V8_INLINE void	SetEmbedderData (v8::Isolate *isolate, uint32_t slot, void *data)
static V8_INLINE void *	GetEmbedderData (const v8::Isolate *isolate, uint32_t slot)
static V8_INLINE internal::Address *	GetRoot (v8::Isolate *isolate, int index)
template<typename T >
static V8_INLINE T	ReadRawField (internal::Address heap_object_ptr, int offset)
static V8_INLINE internal::Address	ReadTaggedPointerField (internal::Address heap_object_ptr, int offset)
static V8_INLINE internal::Address	ReadTaggedSignedField (internal::Address heap_object_ptr, int offset)
static V8_INLINE internal::Isolate *	GetIsolateForHeapSandbox (internal::Address obj)
static V8_INLINE Address	DecodeExternalPointer (const Isolate *isolate, ExternalPointer_t encoded_pointer, ExternalPointerTag tag)
static V8_INLINE internal::Address	ReadExternalPointerField (internal::Isolate *isolate, internal::Address heap_object_ptr, int offset, ExternalPointerTag tag)

Static Public Attributes
static const int	kHeapObjectMapOffset = 0
static const int	kMapInstanceTypeOffset = 1 * kApiTaggedSize + kApiInt32Size
static const int	kStringResourceOffset
static const int	kOddballKindOffset = 4 * kApiTaggedSize + kApiDoubleSize
static const int	kJSObjectHeaderSize = 3 * kApiTaggedSize
static const int	kFixedArrayHeaderSize = 2 * kApiTaggedSize
static const int	kEmbedderDataArrayHeaderSize = 2 * kApiTaggedSize
static const int	kEmbedderDataSlotSize = kApiSystemPointerSize
static const int	kNativeContextEmbedderDataOffset = 6 * kApiTaggedSize
static const int	kFullStringRepresentationMask = 0x0f
static const int	kStringEncodingMask = 0x8
static const int	kExternalTwoByteRepresentationTag = 0x02
static const int	kExternalOneByteRepresentationTag = 0x0a
static const uint32_t	kNumIsolateDataSlots = 4
static const int	kIsolateEmbedderDataOffset = 0
static const int	kIsolateFastCCallCallerFpOffset
static const int	kIsolateFastCCallCallerPcOffset
static const int	kIsolateFastApiCallTargetOffset
static const int	kIsolateStackGuardOffset
static const int	kIsolateRootsOffset
static const int	kExternalPointerTableBufferOffset = 0
static const int	kExternalPointerTableLengthOffset
static const int	kExternalPointerTableCapacityOffset
static const int	kUndefinedValueRootIndex = 4
static const int	kTheHoleValueRootIndex = 5
static const int	kNullValueRootIndex = 6
static const int	kTrueValueRootIndex = 7
static const int	kFalseValueRootIndex = 8
static const int	kEmptyStringRootIndex = 9
static const int	kNodeClassIdOffset = 1 * kApiSystemPointerSize
static const int	kNodeFlagsOffset = 1 * kApiSystemPointerSize + 3
static const int	kNodeStateMask = 0x7
static const int	kNodeStateIsWeakValue = 2
static const int	kNodeStateIsPendingValue = 3
static const int	kFirstNonstringType = 0x40
static const int	kOddballType = 0x43
static const int	kForeignType = 0x46
static const int	kJSSpecialApiObjectType = 0x410
static const int	kJSApiObjectType = 0x420
static const int	kJSObjectType = 0x421
static const int	kUndefinedOddballKind = 5
static const int	kNullOddballKind = 3
static const int	kThrowOnError = 0
static const int	kDontThrow = 1
static const int	kInferShouldThrowMode = 2
static constexpr int	kExternalAllocationSoftLimit = 64 * 1024 * 1024

Detailed Description

This class exports constants and functionality from within v8 that is necessary to implement inline functions in the v8 api. Don't depend on functions and constants defined here.

Definition at line 179 of file v8-internal.h.

Member Function Documentation

CheckInitialized()

static V8_INLINE void CheckInitialized ( v8::Isolate *  isolate )

inlinestatic

Definition at line 257 of file v8-internal.h.

Referenced by String::Empty(), v8::False(), v8::Null(), v8::True(), and v8::Undefined().

CheckInitializedImpl()

static V8_EXPORT void CheckInitializedImpl ( v8::Isolate *  isolate )

static

DecodeExternalPointer()

static V8_INLINE Address DecodeExternalPointer ( const Isolate *  isolate, ExternalPointer_t  encoded_pointer, ExternalPointerTag  tag  )

inlinestatic

Definition at line 388 of file v8-internal.h.

GetEmbedderData()

static V8_INLINE void* GetEmbedderData ( const v8::Isolate *  isolate, uint32_t  slot  )

inlinestatic

Definition at line 324 of file v8-internal.h.

References v8::internal::kApiSystemPointerSize, and Internals::kIsolateEmbedderDataOffset.

Referenced by Isolate::GetData().

GetInstanceType()

static V8_INLINE int GetInstanceType ( const internal::Address  obj )

inlinestatic

Definition at line 279 of file v8-internal.h.

References Internals::kHeapObjectMapOffset, Internals::kMapInstanceTypeOffset, Internals::ReadRawField(), and Internals::ReadTaggedPointerField().

Referenced by Object::GetAlignedPointerFromInternalField(), String::GetExternalStringResource(), String::GetExternalStringResourceBase(), and Object::GetInternalField().

GetIsolateForHeapSandbox()

static V8_INLINE internal::Isolate* GetIsolateForHeapSandbox ( internal::Address  obj )

inlinestatic

Definition at line 378 of file v8-internal.h.

Referenced by Context::GetAlignedPointerFromEmbedderData(), Object::GetAlignedPointerFromInternalField(), String::GetExternalStringResource(), and String::GetExternalStringResourceBase().

GetNodeFlag()

static V8_INLINE uint8_t GetNodeFlag ( internal::Address *  obj, int  shift  )

inlinestatic

Definition at line 294 of file v8-internal.h.

References Internals::kNodeFlagsOffset.

GetNodeState()

static V8_INLINE uint8_t GetNodeState ( internal::Address *  obj )

inlinestatic

Definition at line 306 of file v8-internal.h.

References Internals::kNodeFlagsOffset, and Internals::kNodeStateMask.

Referenced by PersistentBase< T >::IsWeak().

GetOddballKind()

static V8_INLINE int GetOddballKind ( const internal::Address  obj )

inlinestatic

Definition at line 285 of file v8-internal.h.

References Internals::kOddballKindOffset, Internals::ReadTaggedSignedField(), and Internals::SmiValue().

GetRoot()

static V8_INLINE internal::Address* GetRoot ( v8::Isolate *  isolate, int  index  )

inlinestatic

Definition at line 332 of file v8-internal.h.

References v8::internal::kApiSystemPointerSize, and Internals::kIsolateRootsOffset.

Referenced by String::Empty(), v8::False(), ReturnValue< T >::Get(), v8::Null(), ReturnValue< T >::Set(), ReturnValue< T >::SetEmptyString(), ReturnValue< T >::SetNull(), ReturnValue< T >::SetUndefined(), v8::True(), and v8::Undefined().

HasHeapObjectTag()

static V8_INLINE bool HasHeapObjectTag ( const internal::Address  value )

inlinestatic

Definition at line 263 of file v8-internal.h.

References v8::internal::kHeapObjectTag, and v8::internal::kHeapObjectTagMask.

IntToSmi()

static constexpr V8_INLINE internal::Address IntToSmi ( int  value )

inlinestaticconstexpr

Definition at line 271 of file v8-internal.h.

Referenced by ReturnValue< T >::Set(), and PropertyCallbackInfo< Value >::ShouldThrowOnError().

IsExternalTwoByteString()

static V8_INLINE bool IsExternalTwoByteString ( int  instance_type )

inlinestatic

Definition at line 289 of file v8-internal.h.

References Internals::kExternalTwoByteRepresentationTag, and Internals::kFullStringRepresentationMask.

Referenced by String::GetExternalStringResource().

IsValidSmi()

static constexpr V8_INLINE bool IsValidSmi ( intptr_t  value )

inlinestaticconstexpr

Definition at line 275 of file v8-internal.h.

References SmiTagging< 8 >::IsValidSmi().

Referenced by ReturnValue< T >::Set().

ReadExternalPointerField()

static V8_INLINE internal::Address ReadExternalPointerField ( internal::Isolate *  isolate, internal::Address  heap_object_ptr, int  offset, ExternalPointerTag  tag  )

inlinestatic

Definition at line 398 of file v8-internal.h.

References Internals::ReadRawField().

Referenced by Context::GetAlignedPointerFromEmbedderData(), Object::GetAlignedPointerFromInternalField(), String::GetExternalStringResource(), and String::GetExternalStringResourceBase().

ReadRawField()

static V8_INLINE T ReadRawField ( internal::Address  heap_object_ptr, int  offset  )

inlinestatic

Definition at line 340 of file v8-internal.h.

References v8::internal::kHeapObjectTag.

Referenced by Context::GetEmbedderData(), Internals::GetInstanceType(), Object::GetInternalField(), Internals::ReadExternalPointerField(), Internals::ReadTaggedPointerField(), and Internals::ReadTaggedSignedField().

ReadTaggedPointerField()

static V8_INLINE internal::Address ReadTaggedPointerField ( internal::Address  heap_object_ptr, int  offset  )

inlinestatic

Definition at line 357 of file v8-internal.h.

References Internals::ReadRawField().

Referenced by Context::GetAlignedPointerFromEmbedderData(), Context::GetEmbedderData(), and Internals::GetInstanceType().

ReadTaggedSignedField()

static V8_INLINE internal::Address ReadTaggedSignedField ( internal::Address  heap_object_ptr, int  offset  )

inlinestatic

Definition at line 368 of file v8-internal.h.

References Internals::ReadRawField().

Referenced by Internals::GetOddballKind().

SetEmbedderData()

static V8_INLINE void SetEmbedderData ( v8::Isolate *  isolate, uint32_t  slot, void *  data  )

inlinestatic

Definition at line 316 of file v8-internal.h.

References v8::internal::kApiSystemPointerSize, and Internals::kIsolateEmbedderDataOffset.

Referenced by Isolate::SetData().

SmiValue()

static V8_INLINE int SmiValue ( const internal::Address  value )

inlinestatic

Definition at line 267 of file v8-internal.h.

References SmiTagging< 8 >::SmiToInt().

Referenced by Internals::GetOddballKind().

UpdateNodeFlag()

static V8_INLINE void UpdateNodeFlag ( internal::Address *  obj, bool  value, int  shift  )

inlinestatic

Definition at line 299 of file v8-internal.h.

References Internals::kNodeFlagsOffset.

UpdateNodeState()

static V8_INLINE void UpdateNodeState ( internal::Address *  obj, uint8_t  value  )

inlinestatic

Definition at line 311 of file v8-internal.h.

References Internals::kNodeFlagsOffset, and Internals::kNodeStateMask.

Field Documentation

kDontThrow

const int kDontThrow = 1

static

Definition at line 249 of file v8-internal.h.

Referenced by PropertyCallbackInfo< Value >::ShouldThrowOnError().

kEmbedderDataArrayHeaderSize

const int kEmbedderDataArrayHeaderSize = 2 * kApiTaggedSize

static

Definition at line 191 of file v8-internal.h.

Referenced by Context::GetAlignedPointerFromEmbedderData(), and Context::GetEmbedderData().

kEmbedderDataSlotSize

const int kEmbedderDataSlotSize = kApiSystemPointerSize

static

Definition at line 192 of file v8-internal.h.

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

kEmptyStringRootIndex

const int kEmptyStringRootIndex = 9

static

Definition at line 228 of file v8-internal.h.

Referenced by String::Empty(), and ReturnValue< T >::SetEmptyString().

kExternalAllocationSoftLimit

constexpr int kExternalAllocationSoftLimit = 64 * 1024 * 1024

staticconstexpr

Definition at line 254 of file v8-internal.h.

kExternalOneByteRepresentationTag

const int kExternalOneByteRepresentationTag = 0x0a

static

Definition at line 200 of file v8-internal.h.

Referenced by String::GetExternalStringResourceBase().

kExternalPointerTableBufferOffset

const int kExternalPointerTableBufferOffset = 0

static

Definition at line 217 of file v8-internal.h.

kExternalPointerTableCapacityOffset

const int kExternalPointerTableCapacityOffset

static

Initial value:

=
      kExternalPointerTableLengthOffset + kApiInt32Size

Definition at line 220 of file v8-internal.h.

kExternalPointerTableLengthOffset

const int kExternalPointerTableLengthOffset

static

Initial value:

=
      kExternalPointerTableBufferOffset + kApiSystemPointerSize

Definition at line 218 of file v8-internal.h.

kExternalTwoByteRepresentationTag

const int kExternalTwoByteRepresentationTag = 0x02

static

Definition at line 199 of file v8-internal.h.

Referenced by String::GetExternalStringResourceBase(), and Internals::IsExternalTwoByteString().

kFalseValueRootIndex

const int kFalseValueRootIndex = 8

static

Definition at line 227 of file v8-internal.h.

Referenced by v8::False(), and ReturnValue< T >::Set().

kFirstNonstringType

const int kFirstNonstringType = 0x40

static

Definition at line 236 of file v8-internal.h.

kFixedArrayHeaderSize

const int kFixedArrayHeaderSize = 2 * kApiTaggedSize

static

Definition at line 190 of file v8-internal.h.

kForeignType

const int kForeignType = 0x46

static

Definition at line 238 of file v8-internal.h.

kFullStringRepresentationMask

const int kFullStringRepresentationMask = 0x0f

static

Definition at line 197 of file v8-internal.h.

Referenced by String::GetExternalStringResourceBase(), and Internals::IsExternalTwoByteString().

kHeapObjectMapOffset

const int kHeapObjectMapOffset = 0

static

Definition at line 183 of file v8-internal.h.

Referenced by Internals::GetInstanceType().

kInferShouldThrowMode

const int kInferShouldThrowMode = 2

static

Definition at line 250 of file v8-internal.h.

Referenced by PropertyCallbackInfo< Value >::ShouldThrowOnError().

kIsolateEmbedderDataOffset

const int kIsolateEmbedderDataOffset = 0

static

Definition at line 205 of file v8-internal.h.

Referenced by Internals::GetEmbedderData(), and Internals::SetEmbedderData().

kIsolateFastApiCallTargetOffset

const int kIsolateFastApiCallTargetOffset

static

Initial value:

=
      kIsolateFastCCallCallerPcOffset + kApiSystemPointerSize

Definition at line 210 of file v8-internal.h.

kIsolateFastCCallCallerFpOffset

const int kIsolateFastCCallCallerFpOffset

static

Initial value:

=
      kNumIsolateDataSlots * kApiSystemPointerSize

Definition at line 206 of file v8-internal.h.

kIsolateFastCCallCallerPcOffset

const int kIsolateFastCCallCallerPcOffset

static

Initial value:

=
      kIsolateFastCCallCallerFpOffset + kApiSystemPointerSize

Definition at line 208 of file v8-internal.h.

kIsolateRootsOffset

const int kIsolateRootsOffset

static

Initial value:

=
      kIsolateStackGuardOffset + 7 * kApiSystemPointerSize

Definition at line 214 of file v8-internal.h.

Referenced by Internals::GetRoot().

kIsolateStackGuardOffset

const int kIsolateStackGuardOffset

static

Initial value:

=
      kIsolateFastApiCallTargetOffset + kApiSystemPointerSize

Definition at line 212 of file v8-internal.h.

kJSApiObjectType

const int kJSApiObjectType = 0x420

static

Definition at line 240 of file v8-internal.h.

Referenced by Object::GetAlignedPointerFromInternalField(), and Object::GetInternalField().

kJSObjectHeaderSize

const int kJSObjectHeaderSize = 3 * kApiTaggedSize

static

Definition at line 189 of file v8-internal.h.

Referenced by Object::GetAlignedPointerFromInternalField(), and Object::GetInternalField().

kJSObjectType

const int kJSObjectType = 0x421

static

Definition at line 241 of file v8-internal.h.

Referenced by Object::GetAlignedPointerFromInternalField(), and Object::GetInternalField().

kJSSpecialApiObjectType

const int kJSSpecialApiObjectType = 0x410

static

Definition at line 239 of file v8-internal.h.

Referenced by Object::GetAlignedPointerFromInternalField(), and Object::GetInternalField().

kMapInstanceTypeOffset

const int kMapInstanceTypeOffset = 1 * kApiTaggedSize + kApiInt32Size

static

Definition at line 184 of file v8-internal.h.

Referenced by Internals::GetInstanceType().

kNativeContextEmbedderDataOffset

const int kNativeContextEmbedderDataOffset = 6 * kApiTaggedSize

static

Definition at line 196 of file v8-internal.h.

Referenced by Context::GetAlignedPointerFromEmbedderData(), and Context::GetEmbedderData().

kNodeClassIdOffset

const int kNodeClassIdOffset = 1 * kApiSystemPointerSize

static

Definition at line 230 of file v8-internal.h.

Referenced by PersistentBase< T >::SetWrapperClassId(), TracedReferenceBase::SetWrapperClassId(), PersistentBase< T >::WrapperClassId(), and TracedReferenceBase::WrapperClassId().

kNodeFlagsOffset

const int kNodeFlagsOffset = 1 * kApiSystemPointerSize + 3

static

Definition at line 231 of file v8-internal.h.

Referenced by Internals::GetNodeFlag(), Internals::GetNodeState(), Internals::UpdateNodeFlag(), and Internals::UpdateNodeState().

kNodeStateIsPendingValue

const int kNodeStateIsPendingValue = 3

static

Definition at line 234 of file v8-internal.h.

kNodeStateIsWeakValue

const int kNodeStateIsWeakValue = 2

static

Definition at line 233 of file v8-internal.h.

Referenced by PersistentBase< T >::IsWeak().

kNodeStateMask

const int kNodeStateMask = 0x7

static

Definition at line 232 of file v8-internal.h.

Referenced by Internals::GetNodeState(), and Internals::UpdateNodeState().

kNullOddballKind

const int kNullOddballKind = 3

static

Definition at line 244 of file v8-internal.h.

kNullValueRootIndex

const int kNullValueRootIndex = 6

static

Definition at line 225 of file v8-internal.h.

Referenced by v8::Null(), and ReturnValue< T >::SetNull().

kNumIsolateDataSlots

const uint32_t kNumIsolateDataSlots = 4

static

Definition at line 202 of file v8-internal.h.

Referenced by Isolate::GetNumberOfDataSlots().

kOddballKindOffset

const int kOddballKindOffset = 4 * kApiTaggedSize + kApiDoubleSize

static

Definition at line 188 of file v8-internal.h.

Referenced by Internals::GetOddballKind().

kOddballType

const int kOddballType = 0x43

static

Definition at line 237 of file v8-internal.h.

kStringEncodingMask

const int kStringEncodingMask = 0x8

static

Definition at line 198 of file v8-internal.h.

Referenced by String::GetExternalStringResourceBase().

kStringResourceOffset

const int kStringResourceOffset

static

Initial value:

=
      1 * kApiTaggedSize + 2 * kApiInt32Size

Definition at line 185 of file v8-internal.h.

Referenced by String::GetExternalStringResource(), and String::GetExternalStringResourceBase().

kTheHoleValueRootIndex

const int kTheHoleValueRootIndex = 5

static

Definition at line 224 of file v8-internal.h.

Referenced by ReturnValue< T >::Get().

kThrowOnError

const int kThrowOnError = 0

static

Definition at line 248 of file v8-internal.h.

kTrueValueRootIndex

const int kTrueValueRootIndex = 7

static

Definition at line 226 of file v8-internal.h.

Referenced by ReturnValue< T >::Set(), and v8::True().

kUndefinedOddballKind

const int kUndefinedOddballKind = 5

static

Definition at line 243 of file v8-internal.h.

kUndefinedValueRootIndex

const int kUndefinedValueRootIndex = 4

static

Definition at line 223 of file v8-internal.h.

Referenced by ReturnValue< T >::SetUndefined(), and v8::Undefined().

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

• include/v8-internal.h