indirect-pointer-tag.h File Reference

#include "src/common/globals.h"
#include "src/objects/instance-type.h"

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Namespaces
namespace	v8
namespace	v8::internal

Macros
#define	SHARED_TRUSTED_POINTER_TAG_LIST(V)
#define	PER_ISOLATE_INDIRECT_POINTER_TAG_LIST(V)
#define	INDIRECT_POINTER_TAG_LIST(V)
#define	MAKE_TAG(i)
#define	INDIRECT_POINTER_TAG_ENUM_DECL(name, tag_id)
#define	VALIDATE_INDIRECT_POINTER_TAG(name, tag_id)
#define	CASE(name, instance_type, tag_id)
#define	CHECK_SHARED_TRUSTED_POINTER_TAGS(Tag, ...)
#define	CHECK_NON_SHARED_TRUSTED_POINTER_TAGS(Tag, ...)

Enumerations
enum	v8::internal::IndirectPointerTag : uint64_t { v8::internal::kIndirectPointerNullTag = 0 , v8::internal::kUnknownIndirectPointerTag = kIndirectPointerTagMaskWithoutFreeEntryBit , v8::internal::kFreeTrustedPointerTableEntryTag = kTrustedPointerTableFreeEntryBit }

Functions
static V8_INLINE constexpr bool	v8::internal::IsSharedTrustedPointerType (IndirectPointerTag tag)
static V8_INLINE constexpr bool	v8::internal::IsPerIsolateTrustedPointerType (IndirectPointerTag tag)
V8_INLINE constexpr bool	v8::internal::IsValidIndirectPointerTag (IndirectPointerTag tag)
V8_INLINE constexpr bool	v8::internal::IsTrustedSpaceMigrationInProgressForObjectsWithTag (IndirectPointerTag tag)
V8_INLINE IndirectPointerTag	v8::internal::IndirectPointerTagFromInstanceType (InstanceType instance_type)
V8_INLINE InstanceType	v8::internal::InstanceTypeFromIndirectPointerTag (IndirectPointerTag tag)

Variables
constexpr int	v8::internal::kIndirectPointerTagShift = 48
constexpr uint64_t	v8::internal::kIndirectPointerTagMask = 0x7fff'0000'0000'0000
constexpr uint64_t	v8::internal::kTrustedPointerTableMarkBit = 0x8000'0000'0000'0000
constexpr uint64_t	v8::internal::kTrustedPointerTableFreeEntryBit = 0x0080'0000'0000'0000
constexpr uint64_t	v8::internal::kIndirectPointerTagMaskWithoutFreeEntryBit
constexpr uint64_t	v8::internal::kAllTagsForAndBasedTypeChecking []

Macro Definition Documentation

CASE

#define CASE	(		name,
			instance_type,
			tag_id )

Value:

  case MAKE_TAG(tag_id):                  \
    return instance_type;                 \
    break;

CHECK_NON_SHARED_TRUSTED_POINTER_TAGS

#define CHECK_NON_SHARED_TRUSTED_POINTER_TAGS	(		Tag,
			... )

Value:

  static_assert(!IsSharedTrustedPointerType(Tag));

Definition at line 262 of file indirect-pointer-tag.h.

CHECK_SHARED_TRUSTED_POINTER_TAGS

#define CHECK_SHARED_TRUSTED_POINTER_TAGS	(		Tag,
			... )

Value:

  static_assert(IsSharedTrustedPointerType(Tag));

Definition at line 260 of file indirect-pointer-tag.h.

INDIRECT_POINTER_TAG_ENUM_DECL

#define INDIRECT_POINTER_TAG_ENUM_DECL	(		name,
			tag_id )

Value:

name = MAKE_TAG(tag_id),

Definition at line 150 of file indirect-pointer-tag.h.

INDIRECT_POINTER_TAG_LIST

#define INDIRECT_POINTER_TAG_LIST

(

V

)

Value:

  SHARED_TRUSTED_POINTER_TAG_LIST(V)       \
  PER_ISOLATE_INDIRECT_POINTER_TAG_LIST(V) \
  V(kUnpublishedIndirectPointerTag, 34)

Definition at line 98 of file indirect-pointer-tag.h.

MAKE_TAG

#define MAKE_TAG

(

i

)

Value:

  (kAllTagsForAndBasedTypeChecking[i] << kIndirectPointerTagShift)

Definition at line 103 of file indirect-pointer-tag.h.

PER_ISOLATE_INDIRECT_POINTER_TAG_LIST

#define PER_ISOLATE_INDIRECT_POINTER_TAG_LIST

(

V

)

Value:

  V(kFirstPerIsolateTrustedTag, 6)                           \
  V(kCodeIndirectPointerTag, 6)                              \
  V(kBytecodeArrayIndirectPointerTag, 7)                     \
  V(kInterpreterDataIndirectPointerTag, 8)                   \
  V(kUncompiledDataIndirectPointerTag, 9)                    \
  V(kRegExpDataIndirectPointerTag, 10)                       \
  IF_WASM(V, kWasmTrustedInstanceDataIndirectPointerTag, 11) \
  IF_WASM(V, kWasmInternalFunctionIndirectPointerTag, 12)    \
  IF_WASM(V, kWasmFunctionDataIndirectPointerTag, 13)        \
  IF_WASM(V, kWasmDispatchTableIndirectPointerTag, 14)       \
  V(kLastPerIsolateTrustedTag, 14)

Definition at line 85 of file indirect-pointer-tag.h.

SHARED_TRUSTED_POINTER_TAG_LIST

#define SHARED_TRUSTED_POINTER_TAG_LIST

(

V

)

Value:

  V(kFirstSharedTrustedTag, 1)             \
  V(kLastSharedTrustedTag, 1)

Definition at line 78 of file indirect-pointer-tag.h.

VALIDATE_INDIRECT_POINTER_TAG

#define VALIDATE_INDIRECT_POINTER_TAG	(		name,
			tag_id )

Value:

  static_assert((name & kIndirectPointerTagMask) == name); \
  static_assert((name & kIndirectPointerTagMaskWithoutFreeEntryBit) == name);

Definition at line 155 of file indirect-pointer-tag.h.