chromium/v8/src/objects/bigint.h

// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef V8_OBJECTS_BIGINT_H_
#define V8_OBJECTS_BIGINT_H_

#include <atomic>

#include "src/common/globals.h"
#include "src/objects/objects.h"
#include "src/objects/primitive-heap-object.h"
#include "src/utils/utils.h"

// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"

namespace v8 {

namespace bigint {
class Digits;
class FromStringAccumulator;
}  // namespace bigint

namespace internal {

void MutableBigInt_AbsoluteAddAndCanonicalize(Address result_addr,
                                              Address x_addr, Address y_addr);
int32_t MutableBigInt_AbsoluteCompare(Address x_addr, Address y_addr);
void MutableBigInt_AbsoluteSubAndCanonicalize(Address result_addr,
                                              Address x_addr, Address y_addr);
int32_t MutableBigInt_AbsoluteMulAndCanonicalize(Address result_addr,
                                                 Address x_addr,
                                                 Address y_addr);
int32_t MutableBigInt_AbsoluteDivAndCanonicalize(Address result_addr,
                                                 Address x_addr,
                                                 Address y_addr);
int32_t MutableBigInt_AbsoluteModAndCanonicalize(Address result_addr,
                                                 Address x_addr,
                                                 Address y_addr);
void MutableBigInt_BitwiseAndPosPosAndCanonicalize(Address result_addr,
                                                   Address x_addr,
                                                   Address y_addr);
void MutableBigInt_BitwiseAndNegNegAndCanonicalize(Address result_addr,
                                                   Address x_addr,
                                                   Address y_addr);
void MutableBigInt_BitwiseAndPosNegAndCanonicalize(Address result_addr,
                                                   Address x_addr,
                                                   Address y_addr);
void MutableBigInt_BitwiseOrPosPosAndCanonicalize(Address result_addr,
                                                  Address x_addr,
                                                  Address y_addr);
void MutableBigInt_BitwiseOrNegNegAndCanonicalize(Address result_addr,
                                                  Address x_addr,
                                                  Address y_addr);
void MutableBigInt_BitwiseOrPosNegAndCanonicalize(Address result_addr,
                                                  Address x_addr,
                                                  Address y_addr);
void MutableBigInt_BitwiseXorPosPosAndCanonicalize(Address result_addr,
                                                   Address x_addr,
                                                   Address y_addr);
void MutableBigInt_BitwiseXorNegNegAndCanonicalize(Address result_addr,
                                                   Address x_addr,
                                                   Address y_addr);
void MutableBigInt_BitwiseXorPosNegAndCanonicalize(Address result_addr,
                                                   Address x_addr,
                                                   Address y_addr);
void MutableBigInt_LeftShiftAndCanonicalize(Address result_addr, Address x_addr,
                                            intptr_t shift);
uint32_t RightShiftResultLength(Address x_addr, uint32_t x_sign,
                                intptr_t shift);
void MutableBigInt_RightShiftAndCanonicalize(Address result_addr,
                                             Address x_addr, intptr_t shift,
                                             uint32_t must_round_down);

class BigInt;
class ValueDeserializer;
class ValueSerializer;

#if V8_HOST_ARCH_64_BIT && !V8_COMPRESS_POINTERS
// On non-pointer-compressed 64-bit builts, we want the digits to be 8-byte
// aligned, which requires padding.
#define BIGINT_NEEDS_PADDING …
#endif

// BigIntBase is just the raw data object underlying a BigInt. Use with care!
// Most code should be using BigInts instead.
V8_OBJECT class BigIntBase : public PrimitiveHeapObject { … } V8_OBJECT_END;

V8_OBJECT class FreshlyAllocatedBigInt : public BigIntBase { … } V8_OBJECT_END;

// Arbitrary precision integers in JavaScript.
V8_OBJECT class BigInt : public BigIntBase { … } V8_OBJECT_END;

}  // namespace internal
}  // namespace v8

#include "src/objects/object-macros-undef.h"

#endif  // V8_OBJECTS_BIGINT_H_