mirror of
https://github.com/openharmony/ark_js_runtime.git
synced 2026-07-20 23:00:29 -04:00
wengchangcheng
88 lines
4.1 KiB
C++
88 lines
4.1 KiB
C++
/*
|
|
* Copyright (c) 2021 Huawei Device Co., Ltd.
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ECMASCRIPT_BUILTINS_BUILTINS_ARRAYBUFFER_H
|
|
#define ECMASCRIPT_BUILTINS_BUILTINS_ARRAYBUFFER_H
|
|
|
|
#include "ecmascript/base/builtins_base.h"
|
|
#include "ecmascript/base/number_helper.h"
|
|
#include "ecmascript/js_dataview.h"
|
|
|
|
namespace panda::ecmascript::builtins {
|
|
static constexpr double NUMBER_HALF = 0.5;
|
|
static constexpr uint32_t BITS_EIGHT = 8;
|
|
static constexpr uint32_t BITS_TWENTY_FOUR = 24;
|
|
static constexpr uint32_t BITS_FORTY = 40;
|
|
static constexpr uint32_t BITS_FIFTY_SIX = 56;
|
|
using DataViewType = ecmascript::DataViewType;
|
|
class BuiltinsArrayBuffer : public base::BuiltinsBase {
|
|
public:
|
|
enum NumberSize : uint8_t { UINT16 = 2, INT16 = 2, UINT32 = 4, INT32 = 4, FLOAT32 = 4, FLOAT64 = 8 };
|
|
|
|
// 24.1.2.1 ArrayBuffer(length)
|
|
static JSTaggedValue ArrayBufferConstructor(EcmaRuntimeCallInfo *argv);
|
|
// 24.1.3.1 ArrayBuffer.isView(arg)
|
|
static JSTaggedValue IsView(EcmaRuntimeCallInfo *argv);
|
|
// 24.1.3.3 get ArrayBuffer[@@species]
|
|
static JSTaggedValue Species(EcmaRuntimeCallInfo *argv);
|
|
// 24.1.4.1 get ArrayBuffer.prototype.byteLength
|
|
static JSTaggedValue GetByteLength(EcmaRuntimeCallInfo *argv);
|
|
// 24.1.4.3 ArrayBuffer.prototype.slice()
|
|
static JSTaggedValue Slice(EcmaRuntimeCallInfo *argv);
|
|
// 24.1.1.2 IsDetachedBuffer(arrayBuffer)
|
|
static bool IsDetachedBuffer(JSTaggedValue arrayBuffer);
|
|
// 24.1.1.5 GetValueFromBuffer ( arrayBuffer, byteIndex, type, isLittleEndian )
|
|
static JSTaggedValue GetValueFromBuffer(JSTaggedValue arrBuf, uint32_t byteIndex, DataViewType type,
|
|
bool littleEndian);
|
|
// 24.1.1.6 SetValueInBuffer ( arrayBuffer, byteIndex, type, value, isLittleEndian )
|
|
static JSTaggedValue SetValueInBuffer(JSTaggedValue arrBuf, uint32_t byteIndex, DataViewType type,
|
|
JSTaggedNumber value, bool littleEndian);
|
|
// 24.1.1.4 CloneArrayBuffer( srcBuffer, srcByteOffset [, cloneConstructor] )
|
|
static JSTaggedValue CloneArrayBuffer(JSThread *thread, const JSHandle<JSTaggedValue> &srcBuffer,
|
|
uint32_t srcByteOffset, JSHandle<JSTaggedValue> constructor);
|
|
// 24.1.1.1 AllocateArrayBuffer(constructor, byteLength)
|
|
static JSTaggedValue AllocateArrayBuffer(JSThread *thread, const JSHandle<JSTaggedValue> &newTarget,
|
|
double byteLength);
|
|
|
|
private:
|
|
template <typename T>
|
|
static T LittleEndianToBigEndian(T liValue);
|
|
|
|
static uint64_t LittleEndianToBigEndianUint64(uint64_t liValue);
|
|
|
|
template<typename T>
|
|
static void SetTypeData(uint8_t *block, T value, uint32_t index);
|
|
|
|
template<typename T, NumberSize size>
|
|
static JSTaggedValue GetValueFromBufferForInteger(uint8_t *block, uint32_t byteIndex, bool littleEndian);
|
|
|
|
template<typename T, NumberSize size>
|
|
static JSTaggedValue GetValueFromBufferForFloat(uint8_t *block, uint32_t byteIndex, bool littleEndian);
|
|
|
|
template<typename T>
|
|
static void SetValueInBufferForByte(double val, uint8_t *block, uint32_t byteIndex);
|
|
|
|
static void SetValueInBufferForUint8Clamped(double val, uint8_t *block, uint32_t byteIndex);
|
|
|
|
template<typename T>
|
|
static void SetValueInBufferForInteger(double val, uint8_t *block, uint32_t byteIndex, bool littleEndian);
|
|
|
|
template<typename T>
|
|
static void SetValueInBufferForFloat(double val, uint8_t *block, uint32_t byteIndex, bool littleEndian);
|
|
};
|
|
} // namespace panda::ecmascript::builtins
|
|
|
|
#endif // ECMASCRIPT_BUILTINS_BUILTINS_ARRAYBUFFER_H
|