v8::internal::BigIntBase Class Reference

#include <bigint.h>

Inheritance diagram for v8::internal::BigIntBase:

Collaboration diagram for v8::internal::BigIntBase:

Public Types
using	SignBits = base::BitField<bool, 0, 1>
using	LengthBits = SignBits::Next<uint32_t, kLengthFieldBits>

Public Member Functions
uint32_t	length () const
uint32_t	length (AcquireLoadTag) const
bigint::Digits	digits () const
Public Member Functions inherited from v8::internal::HeapObjectLayout
	HeapObjectLayout ()=delete
Tagged< Map >	map () const
Tagged< Map >	map (AcquireLoadTag) const
MapWord	map_word (RelaxedLoadTag) const
void	set_map (Isolate *isolate, Tagged< Map > value)
template<typename IsolateT >
void	set_map (IsolateT *isolate, Tagged< Map > value, ReleaseStoreTag)
template<typename IsolateT >
void	set_map_safe_transition (IsolateT *isolate, Tagged< Map > value, ReleaseStoreTag)
void	set_map_safe_transition_no_write_barrier (Isolate *isolate, Tagged< Map > value, RelaxedStoreTag=kRelaxedStore)
template<typename IsolateT >
void	set_map_after_allocation (IsolateT *isolate, Tagged< Map > value, WriteBarrierMode mode=UPDATE_WRITE_BARRIER)
void	set_map_no_write_barrier (Isolate *isolate, Tagged< Map > value, RelaxedStoreTag=kRelaxedStore)
void	set_map_word_forwarded (Tagged< HeapObject > target_object, ReleaseStoreTag)
void	set_map_word_forwarded (Tagged< HeapObject > target_object, RelaxedStoreTag)
Address	ptr () const
Address	address () const
ReadOnlyRoots	EarlyGetReadOnlyRoots () const
int	Size () const
V8_EXPORT_PRIVATE int	SizeFromMap (Tagged< Map > map) const
WriteBarrierMode	GetWriteBarrierMode (const DisallowGarbageCollection &promise)

Static Public Attributes
static const uint32_t	kMaxLengthBits = 1 << 30
static const uint32_t	kMaxLength
static const uint32_t	kLengthFieldBits = 30

Private Types
using	digit_t = uintptr_t

Private Member Functions
bool	sign () const
digit_t	digit (uint32_t n) const
bool	is_zero () const
	FLEXIBLE_ARRAY_MEMBER (UnalignedValueMember< digit_t >, raw_digits)

Private Attributes
std::atomic_uint32_t	bitfield_

Static Private Attributes
static const uint32_t	kDigitSize = sizeof(digit_t)
static const uint32_t	kDigitBits = kDigitSize * kBitsPerByte
static const uint32_t	kHalfDigitBits = kDigitBits / 2
static const digit_t	kHalfDigitMask = (1ull << kHalfDigitBits) - 1

Friends
class	::v8::internal::BigInt
class	MutableBigInt
class	FreshlyAllocatedBigInt
struct	OffsetsForDebug
class	CodeStubAssembler
class	maglev::MaglevAssembler
class	compiler::AccessBuilder

Detailed Description

Definition at line 88 of file bigint.h.

Member Typedef Documentation

digit_t

using v8::internal::BigIntBase::digit_t = uintptr_t

private

Definition at line 130 of file bigint.h.

LengthBits

using v8::internal::BigIntBase::LengthBits = SignBits::Next<uint32_t, kLengthFieldBits>

Definition at line 114 of file bigint.h.

SignBits

using v8::internal::BigIntBase::SignBits = base::BitField<bool, 0, 1>

Definition at line 113 of file bigint.h.

Member Function Documentation

digit()

digit_t v8::internal::BigIntBase::digit ( uint32_t n ) const

inlineprivate

Definition at line 145 of file bigint.h.

Here is the call graph for this function:

Here is the caller graph for this function:

digits()

bigint::Digits v8::internal::BigIntBase::digits

(

)

const

Definition at line 146 of file bigint.cc.

Here is the call graph for this function:

Here is the caller graph for this function:

FLEXIBLE_ARRAY_MEMBER()

v8::internal::BigIntBase::FLEXIBLE_ARRAY_MEMBER ( UnalignedValueMember< digit_t > , raw_digits  )

private

is_zero()

bool v8::internal::BigIntBase::is_zero ( ) const

inlineprivate

Definition at line 150 of file bigint.h.

Here is the call graph for this function:

Here is the caller graph for this function:

length() [1/2]

uint32_t v8::internal::BigIntBase::length ( ) const

inline

Definition at line 90 of file bigint.h.

Here is the call graph for this function:

Here is the caller graph for this function:

length() [2/2]

uint32_t v8::internal::BigIntBase::length ( AcquireLoadTag ) const

inline

Definition at line 95 of file bigint.h.

Here is the call graph for this function:

sign()

bool v8::internal::BigIntBase::sign ( ) const

inlineprivate

Definition at line 141 of file bigint.h.

Here is the call graph for this function:

Here is the caller graph for this function:

Friends And Related Symbol Documentation

::v8::internal::BigInt

friend class ::v8::internal::BigInt

friend

Definition at line 121 of file bigint.h.

CodeStubAssembler

friend class CodeStubAssembler

friend

Definition at line 126 of file bigint.h.

compiler::AccessBuilder

friend class compiler::AccessBuilder

friend

Definition at line 128 of file bigint.h.

FreshlyAllocatedBigInt

friend class FreshlyAllocatedBigInt

friend

Definition at line 123 of file bigint.h.

maglev::MaglevAssembler

friend class maglev::MaglevAssembler

friend

Definition at line 127 of file bigint.h.

MutableBigInt

friend class MutableBigInt

friend

Definition at line 122 of file bigint.h.

OffsetsForDebug

friend struct OffsetsForDebug

friend

Definition at line 125 of file bigint.h.

Member Data Documentation

bitfield_

std::atomic_uint32_t v8::internal::BigIntBase::bitfield_

private

Definition at line 152 of file bigint.h.

kDigitBits

const uint32_t v8::internal::BigIntBase::kDigitBits = kDigitSize * kBitsPerByte

staticprivate

Definition at line 136 of file bigint.h.

kDigitSize

const uint32_t v8::internal::BigIntBase::kDigitSize = sizeof(digit_t)

staticprivate

Definition at line 132 of file bigint.h.

kHalfDigitBits

const uint32_t v8::internal::BigIntBase::kHalfDigitBits = kDigitBits / 2

staticprivate

Definition at line 137 of file bigint.h.

kHalfDigitMask

const digit_t v8::internal::BigIntBase::kHalfDigitMask = (1ull << kHalfDigitBits) - 1

staticprivate

Definition at line 138 of file bigint.h.

kLengthFieldBits

const uint32_t v8::internal::BigIntBase::kLengthFieldBits = 30

static

Definition at line 111 of file bigint.h.

kMaxLength

const uint32_t v8::internal::BigIntBase::kMaxLength

static

Initial value:

=
      kMaxLengthBits / (kSystemPointerSize * kBitsPerByte)

Definition at line 106 of file bigint.h.

kMaxLengthBits

const uint32_t v8::internal::BigIntBase::kMaxLengthBits = 1 << 30

static

Definition at line 105 of file bigint.h.

---

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

• src/objects/bigint.h
• src/objects/bigint.cc