v8
10.1.124 (node 18.2.0)
V8 is Google's open source JavaScript engine
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#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <type_traits>
#include "v8-version.h"
#include "v8config.h"
Go to the source code of this file.
Data Structures | |
struct | SmiTagging< 4 > |
struct | SmiTagging< 8 > |
class | Internals |
struct | CastCheck< PerformCheck > |
class | BackingStoreBase |
Namespaces | |
v8 | |
v8::internal | |
Macros | |
#define | MAKE_TAG(v) (static_cast<uint64_t>(v) << kExternalPointerTagShift) |
Typedefs | |
typedef uintptr_t | Address |
using | PlatformSmiTagging = SmiTagging< kApiTaggedSize > |
using | SandboxedPointer_t = Address |
using | ExternalPointer_t = Address |
Enumerations | |
enum | ExternalPointerTag : uint64_t { kExternalPointerNullTag = MAKE_TAG(0b0000000000000000) , kExternalPointerFreeEntryTag = MAKE_TAG(0b0111111110000000) , kExternalStringResourceTag = MAKE_TAG(0b1000000011111111) , kExternalStringResourceDataTag = MAKE_TAG(0b1000000101111111) , kForeignForeignAddressTag = MAKE_TAG(0b1000000110111111) , kNativeContextMicrotaskQueueTag = MAKE_TAG(0b1000000111011111) , kEmbedderDataSlotPayloadTag = MAKE_TAG(0b1000000111101111) , kCodeEntryPointTag = MAKE_TAG(0b1000000111110111) , kExternalObjectValueTag = MAKE_TAG(0b1000000111111011) } |
Functions | |
constexpr bool | PointerCompressionIsEnabled () |
constexpr bool | SmiValuesAre31Bits () |
constexpr bool | SmiValuesAre32Bits () |
constexpr bool | SandboxIsEnabled () |
constexpr bool | SandboxedExternalPointersAreEnabled () |
V8_EXPORT Address | DecodeExternalPointerImpl (const Isolate *isolate, ExternalPointer_t pointer, ExternalPointerTag tag) |
V8_EXPORT internal::Isolate * | IsolateFromNeverReadOnlySpaceObject (Address obj) |
V8_EXPORT bool | ShouldThrowOnError (v8::internal::Isolate *isolate) |
V8_EXPORT bool | CanHaveInternalField (int instance_type) |
template<class T > | |
V8_INLINE void | PerformCastCheck (T *data) |
Variables | |
constexpr int | KB = 1024 |
constexpr int | MB = KB * 1024 |
constexpr int | GB = MB * 1024 |
const int | kApiSystemPointerSize = sizeof(void*) |
const int | kApiDoubleSize = sizeof(double) |
const int | kApiInt32Size = sizeof(int32_t) |
const int | kApiInt64Size = sizeof(int64_t) |
const int | kApiSizetSize = sizeof(size_t) |
const int | kHeapObjectTag = 1 |
const int | kWeakHeapObjectTag = 3 |
const int | kHeapObjectTagSize = 2 |
const intptr_t | kHeapObjectTagMask = (1 << kHeapObjectTagSize) - 1 |
const int | kForwardingTag = 0 |
const int | kForwardingTagSize = 2 |
const intptr_t | kForwardingTagMask = (1 << kForwardingTagSize) - 1 |
const int | kSmiTag = 0 |
const int | kSmiTagSize = 1 |
const intptr_t | kSmiTagMask = (1 << kSmiTagSize) - 1 |
constexpr intptr_t | kIntptrAllBitsSet = intptr_t{-1} |
constexpr uintptr_t | kUintptrAllBitsSet |
const int | kApiTaggedSize = kApiSystemPointerSize |
const int | kSmiShiftSize = PlatformSmiTagging::kSmiShiftSize |
const int | kSmiValueSize = PlatformSmiTagging::kSmiValueSize |
const int | kSmiMinValue = static_cast<int>(PlatformSmiTagging::kSmiMinValue) |
const int | kSmiMaxValue = static_cast<int>(PlatformSmiTagging::kSmiMaxValue) |
constexpr uint64_t | kExternalPointerTagMask = 0xffff000000000000 |
constexpr uint64_t | kExternalPointerTagShift = 48 |
constexpr int | kGarbageCollectionReasonMaxValue = 25 |
#define MAKE_TAG | ( | v | ) | (static_cast<uint64_t>(v) << kExternalPointerTagShift) |
Definition at line 298 of file v8-internal.h.