v8  6.2.414 (node 8.16.2)
V8 is Google's open source JavaScript engine
Static Public Member Functions | Static Public Attributes
Internals Class Reference

#include <v8.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::Object *value)
 
static V8_INLINE int SmiValue (const internal::Object *value)
 
static V8_INLINE internal::Object * IntToSmi (int value)
 
static V8_INLINE bool IsValidSmi (intptr_t value)
 
static V8_INLINE int GetInstanceType (const internal::Object *obj)
 
static V8_INLINE int GetOddballKind (const internal::Object *obj)
 
static V8_INLINE bool IsExternalTwoByteString (int instance_type)
 
static V8_INLINE uint8_t GetNodeFlag (internal::Object **obj, int shift)
 
static V8_INLINE void UpdateNodeFlag (internal::Object **obj, bool value, int shift)
 
static V8_INLINE uint8_t GetNodeState (internal::Object **obj)
 
static V8_INLINE void UpdateNodeState (internal::Object **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::Object ** GetRoot (v8::Isolate *isolate, int index)
 
template<typename T >
static V8_INLINE T ReadField (const internal::Object *ptr, int offset)
 
template<typename T >
static V8_INLINE T ReadEmbedderData (const v8::Context *context, int index)
 

Static Public Attributes

static const int kHeapObjectMapOffset = 0
 
static const int kMapInstanceTypeAndBitFieldOffset
 
static const int kStringResourceOffset = 3 * kApiPointerSize
 
static const int kOddballKindOffset = 4 * kApiPointerSize + sizeof(double)
 
static const int kForeignAddressOffset = kApiPointerSize
 
static const int kJSObjectHeaderSize = 3 * kApiPointerSize
 
static const int kFixedArrayHeaderSize = 2 * kApiPointerSize
 
static const int kContextHeaderSize = 2 * kApiPointerSize
 
static const int kContextEmbedderDataIndex = 5
 
static const int kFullStringRepresentationMask = 0x0f
 
static const int kStringEncodingMask = 0x8
 
static const int kExternalTwoByteRepresentationTag = 0x02
 
static const int kExternalOneByteRepresentationTag = 0x0a
 
static const int kIsolateEmbedderDataOffset = 0 * kApiPointerSize
 
static const int kExternalMemoryOffset = 4 * kApiPointerSize
 
static const int kExternalMemoryLimitOffset
 
static const int kExternalMemoryAtLastMarkCompactOffset
 
static const int kIsolateRootsOffset
 
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 * kApiPointerSize
 
static const int kNodeFlagsOffset = 1 * kApiPointerSize + 3
 
static const int kNodeStateMask = 0x7
 
static const int kNodeStateIsWeakValue = 2
 
static const int kNodeStateIsPendingValue = 3
 
static const int kNodeStateIsNearDeathValue = 4
 
static const int kNodeIsIndependentShift = 3
 
static const int kNodeIsActiveShift = 4
 
static const int kJSApiObjectType = 0xbd
 
static const int kJSObjectType = 0xbe
 
static const int kFirstNonstringType = 0x80
 
static const int kOddballType = 0x82
 
static const int kForeignType = 0x86
 
static const int kUndefinedOddballKind = 5
 
static const int kNullOddballKind = 3
 
static const uint32_t kNumIsolateDataSlots = 4
 

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 8965 of file v8.h.

Member Function Documentation

◆ CheckInitialized()

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

Definition at line 9022 of file v8.h.

Referenced by String::Empty().

◆ CheckInitializedImpl()

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

◆ GetEmbedderData()

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

Definition at line 9094 of file v8.h.

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

Referenced by Isolate::GetData().

◆ GetInstanceType()

static V8_INLINE int GetInstanceType ( const internal::Object *  obj)
inlinestatic

Definition at line 9045 of file v8.h.

References Internals::kHeapObjectMapOffset, Internals::kMapInstanceTypeAndBitFieldOffset, and Internals::ReadField().

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

◆ GetNodeFlag()

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

Definition at line 9063 of file v8.h.

References Internals::kNodeFlagsOffset.

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

◆ GetNodeState()

static V8_INLINE uint8_t GetNodeState ( internal::Object **  obj)
inlinestatic

Definition at line 9075 of file v8.h.

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

Referenced by PersistentBase< T >::IsNearDeath(), and PersistentBase< T >::IsWeak().

◆ GetOddballKind()

static V8_INLINE int GetOddballKind ( const internal::Object *  obj)
inlinestatic

Definition at line 9053 of file v8.h.

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

◆ GetRoot()

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

Definition at line 9101 of file v8.h.

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

Referenced by String::Empty(), ReturnValue< T >::Get(), ReturnValue< T >::Set(), ReturnValue< T >::SetEmptyString(), ReturnValue< T >::SetNull(), and ReturnValue< T >::SetUndefined().

◆ HasHeapObjectTag()

static V8_INLINE bool HasHeapObjectTag ( const internal::Object *  value)
inlinestatic

Definition at line 9028 of file v8.h.

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

◆ IntToSmi()

static V8_INLINE internal::Object* IntToSmi ( int  value)
inlinestatic

Definition at line 9037 of file v8.h.

References SmiTagging< 8 >::IntToSmi().

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

◆ IsExternalTwoByteString()

static V8_INLINE bool IsExternalTwoByteString ( int  instance_type)
inlinestatic

Definition at line 9058 of file v8.h.

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

Referenced by String::GetExternalStringResource().

◆ IsValidSmi()

static V8_INLINE bool IsValidSmi ( intptr_t  value)
inlinestatic

Definition at line 9041 of file v8.h.

References SmiTagging< 8 >::IsValidSmi().

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

◆ ReadEmbedderData()

static V8_INLINE T ReadEmbedderData ( const v8::Context *  context,
int  index 
)
inlinestatic

Definition at line 9115 of file v8.h.

References v8::internal::kApiPointerSize, Internals::kContextEmbedderDataIndex, Internals::kContextHeaderSize, Internals::kFixedArrayHeaderSize, and Internals::ReadField().

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

◆ ReadField()

static V8_INLINE T ReadField ( const internal::Object *  ptr,
int  offset 
)
inlinestatic

Definition at line 9108 of file v8.h.

References v8::internal::kHeapObjectTag.

Referenced by Object::GetAlignedPointerFromInternalField(), String::GetExternalStringResource(), String::GetExternalStringResourceBase(), Internals::GetInstanceType(), Object::GetInternalField(), Internals::GetOddballKind(), and Internals::ReadEmbedderData().

◆ SetEmbedderData()

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

Definition at line 9086 of file v8.h.

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

Referenced by Isolate::SetData().

◆ SmiValue()

static V8_INLINE int SmiValue ( const internal::Object *  value)
inlinestatic

Definition at line 9033 of file v8.h.

References SmiTagging< 8 >::SmiToInt().

Referenced by Internals::GetOddballKind().

◆ UpdateNodeFlag()

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

Definition at line 9068 of file v8.h.

References Internals::kNodeFlagsOffset.

Referenced by PersistentBase< T >::MarkActive(), and PersistentBase< T >::MarkIndependent().

◆ UpdateNodeState()

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

Definition at line 9080 of file v8.h.

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

Field Documentation

◆ kContextEmbedderDataIndex

const int kContextEmbedderDataIndex = 5
static

Definition at line 8979 of file v8.h.

Referenced by Internals::ReadEmbedderData().

◆ kContextHeaderSize

const int kContextHeaderSize = 2 * kApiPointerSize
static

Definition at line 8978 of file v8.h.

Referenced by Internals::ReadEmbedderData().

◆ kEmptyStringRootIndex

const int kEmptyStringRootIndex = 9
static

Definition at line 8999 of file v8.h.

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

◆ kExternalMemoryAtLastMarkCompactOffset

const int kExternalMemoryAtLastMarkCompactOffset
static
Initial value:
=
kExternalMemoryLimitOffset + kApiInt64Size
v8::internal::Internals::kExternalMemoryLimitOffset
static const int kExternalMemoryLimitOffset
Definition: v8.h:8987
v8::internal::kApiInt64Size
const int kApiInt64Size
Definition: v8.h:8884

Definition at line 8989 of file v8.h.

Referenced by Isolate::AdjustAmountOfExternalAllocatedMemory().

◆ kExternalMemoryLimitOffset

const int kExternalMemoryLimitOffset
static
Initial value:
=
kExternalMemoryOffset + kApiInt64Size
v8::internal::Internals::kExternalMemoryOffset
static const int kExternalMemoryOffset
Definition: v8.h:8986

Definition at line 8987 of file v8.h.

Referenced by Isolate::AdjustAmountOfExternalAllocatedMemory().

◆ kExternalMemoryOffset

const int kExternalMemoryOffset = 4 * kApiPointerSize
static

Definition at line 8986 of file v8.h.

Referenced by Isolate::AdjustAmountOfExternalAllocatedMemory().

◆ kExternalOneByteRepresentationTag

const int kExternalOneByteRepresentationTag = 0x0a
static

Definition at line 8983 of file v8.h.

Referenced by String::GetExternalStringResourceBase().

◆ kExternalTwoByteRepresentationTag

const int kExternalTwoByteRepresentationTag = 0x02
static

Definition at line 8982 of file v8.h.

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

◆ kFalseValueRootIndex

const int kFalseValueRootIndex = 8
static

Definition at line 8998 of file v8.h.

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

◆ kFirstNonstringType

const int kFirstNonstringType = 0x80
static

Definition at line 9012 of file v8.h.

◆ kFixedArrayHeaderSize

const int kFixedArrayHeaderSize = 2 * kApiPointerSize
static

Definition at line 8977 of file v8.h.

Referenced by Internals::ReadEmbedderData().

◆ kForeignAddressOffset

const int kForeignAddressOffset = kApiPointerSize
static

Definition at line 8975 of file v8.h.

◆ kForeignType

const int kForeignType = 0x86
static

Definition at line 9014 of file v8.h.

◆ kFullStringRepresentationMask

const int kFullStringRepresentationMask = 0x0f
static

Definition at line 8980 of file v8.h.

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

◆ kHeapObjectMapOffset

const int kHeapObjectMapOffset = 0
static

Definition at line 8969 of file v8.h.

Referenced by Internals::GetInstanceType().

◆ kIsolateEmbedderDataOffset

const int kIsolateEmbedderDataOffset = 0 * kApiPointerSize
static

Definition at line 8985 of file v8.h.

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

◆ kIsolateRootsOffset

const int kIsolateRootsOffset
static
Initial value:
= kExternalMemoryLimitOffset +
kApiInt64Size + kApiInt64Size +
kApiPointerSize + kApiPointerSize
v8::internal::kApiPointerSize
const int kApiPointerSize
Definition: v8.h:8882

Definition at line 8991 of file v8.h.

Referenced by Internals::GetRoot().

◆ kJSApiObjectType

const int kJSApiObjectType = 0xbd
static

Definition at line 9010 of file v8.h.

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

◆ kJSObjectHeaderSize

const int kJSObjectHeaderSize = 3 * kApiPointerSize
static

Definition at line 8976 of file v8.h.

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

◆ kJSObjectType

const int kJSObjectType = 0xbe
static

Definition at line 9011 of file v8.h.

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

◆ kMapInstanceTypeAndBitFieldOffset

const int kMapInstanceTypeAndBitFieldOffset
static
Initial value:
=
1 * kApiPointerSize + kApiIntSize
v8::internal::kApiIntSize
const int kApiIntSize
Definition: v8.h:8883

Definition at line 8970 of file v8.h.

Referenced by Internals::GetInstanceType().

◆ kNodeClassIdOffset

const int kNodeClassIdOffset = 1 * kApiPointerSize
static

Definition at line 9001 of file v8.h.

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

◆ kNodeFlagsOffset

const int kNodeFlagsOffset = 1 * kApiPointerSize + 3
static

Definition at line 9002 of file v8.h.

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

◆ kNodeIsActiveShift

const int kNodeIsActiveShift = 4
static

Definition at line 9008 of file v8.h.

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

◆ kNodeIsIndependentShift

const int kNodeIsIndependentShift = 3
static

Definition at line 9007 of file v8.h.

Referenced by PersistentBase< T >::IsIndependent(), and PersistentBase< T >::MarkIndependent().

◆ kNodeStateIsNearDeathValue

const int kNodeStateIsNearDeathValue = 4
static

Definition at line 9006 of file v8.h.

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

◆ kNodeStateIsPendingValue

const int kNodeStateIsPendingValue = 3
static

Definition at line 9005 of file v8.h.

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

◆ kNodeStateIsWeakValue

const int kNodeStateIsWeakValue = 2
static

Definition at line 9004 of file v8.h.

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

◆ kNodeStateMask

const int kNodeStateMask = 0x7
static

Definition at line 9003 of file v8.h.

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

◆ kNullOddballKind

const int kNullOddballKind = 3
static

Definition at line 9017 of file v8.h.

◆ kNullValueRootIndex

const int kNullValueRootIndex = 6
static

Definition at line 8996 of file v8.h.

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

◆ kNumIsolateDataSlots

const uint32_t kNumIsolateDataSlots = 4
static

Definition at line 9019 of file v8.h.

Referenced by Isolate::GetNumberOfDataSlots().

◆ kOddballKindOffset

const int kOddballKindOffset = 4 * kApiPointerSize + sizeof(double)
static

Definition at line 8974 of file v8.h.

Referenced by Internals::GetOddballKind().

◆ kOddballType

const int kOddballType = 0x82
static

Definition at line 9013 of file v8.h.

◆ kStringEncodingMask

const int kStringEncodingMask = 0x8
static

Definition at line 8981 of file v8.h.

Referenced by String::GetExternalStringResourceBase().

◆ kStringResourceOffset

const int kStringResourceOffset = 3 * kApiPointerSize
static

Definition at line 8972 of file v8.h.

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

◆ kTheHoleValueRootIndex

const int kTheHoleValueRootIndex = 5
static

Definition at line 8995 of file v8.h.

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

◆ kTrueValueRootIndex

const int kTrueValueRootIndex = 7
static

Definition at line 8997 of file v8.h.

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

◆ kUndefinedOddballKind

const int kUndefinedOddballKind = 5
static

Definition at line 9016 of file v8.h.

◆ kUndefinedValueRootIndex

const int kUndefinedValueRootIndex = 4
static

Definition at line 8994 of file v8.h.

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

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