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ArrayBufferObject.h
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63 lines (50 loc) · 2.46 KB
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/*
* Copyright (c) 2017-present Samsung Electronics Co., Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef __EscargotArrayBufferObject__
#define __EscargotArrayBufferObject__
#include "runtime/ArrayBuffer.h"
namespace Escargot {
class ArrayBufferObject : public ArrayBuffer {
friend void initializeCustomAllocators();
friend int getValidValueInArrayBufferObject(void* ptr, GC_mark_custom_result* arr);
public:
explicit ArrayBufferObject(ExecutionState& state);
explicit ArrayBufferObject(ExecutionState& state, Object* proto);
static ArrayBufferObject* allocateArrayBuffer(ExecutionState& state, Object* constructor, uint64_t byteLength, Optional<uint64_t> maxByteLength = Optional<uint64_t>());
static ArrayBufferObject* cloneArrayBuffer(ExecutionState& state, ArrayBuffer* srcBuffer, size_t srcByteOffset, uint64_t srcLength, Object* constructor);
void allocateBuffer(ExecutionState& state, size_t bytelength);
void allocateResizableBuffer(ExecutionState& state, size_t bytelength, size_t maxByteLength);
void attachBuffer(BackingStore* backingStore);
void detachArrayBuffer();
virtual bool isArrayBufferObject() const override
{
return true;
}
virtual void fillData(const uint8_t* newData, size_t length) override
{
ASSERT(!isDetachedBuffer());
memcpy(data(), newData, length);
}
virtual Value getValueFromBuffer(ExecutionState& state, size_t byteindex, TypedArrayType type, bool isLittleEndian = true) override;
virtual void setValueInBuffer(ExecutionState& state, size_t byteindex, TypedArrayType type, const Value& val, bool isLittleEndian = true) override;
void* operator new(size_t size);
void* operator new[](size_t size) = delete;
};
} // namespace Escargot
#endif