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https://gitee.com/openharmony/arkcompiler_ets_runtime
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8f5e2fa5b4
Description:Implement serialize base class Issue:https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I8GZGX Signed-off-by: dingwen <dingwen6@huawei.com> Change-Id: Ia03fc9cac949d73cafbd6a2603da053d2f886cd1
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMASCRIPT_BYTE_ARRAY_H
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#define ECMASCRIPT_BYTE_ARRAY_H
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#include "ecmascript/js_hclass.h"
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#include "ecmascript/js_tagged_value.h"
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#include "ecmascript/js_dataview.h"
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namespace panda::ecmascript {
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class ObjectFactory;
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class JSThread;
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class ByteArray : public TaggedObject {
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public:
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CAST_CHECK(ByteArray, IsByteArray);
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static inline size_t ComputeSize(size_t elemSize, uint32_t length)
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{
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ASSERT(elemSize != 0);
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size_t size = DATA_OFFSET + elemSize * length;
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return size;
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}
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static inline size_t ComputeDataSize(size_t elemSize, uint32_t length)
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{
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ASSERT(elemSize != 0);
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return elemSize * length;
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}
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size_t GetPointerLength()
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{
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size_t byteSize = ComputeDataSize(GetArrayLength(), GetByteLength());
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return AlignUp(byteSize, static_cast<size_t>(MemAlignment::MEM_ALIGN_OBJECT)) / sizeof(JSTaggedType);
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}
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inline void *GetData(uint32_t index = 0) const
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{
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return reinterpret_cast<void *>(ToUintPtr(this) + DATA_OFFSET + index * GetByteLength());
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}
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void Set(JSThread* thread, uint32_t idx, DataViewType type, JSTaggedType val, uint32_t offset = 0);
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JSTaggedValue Get(JSThread *thread, uint32_t idx, DataViewType type, uint32_t offset = 0);
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static constexpr size_t ARRAY_LENGTH_OFFSET = TaggedObjectSize();
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ACCESSORS_PRIMITIVE_FIELD(ArrayLength, uint32_t, ARRAY_LENGTH_OFFSET, BYTE_LENGTH_OFFSET)
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ACCESSORS_PRIMITIVE_FIELD(ByteLength, uint32_t, BYTE_LENGTH_OFFSET, LAST_OFFSET)
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DEFINE_ALIGN_SIZE(LAST_OFFSET);
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static constexpr size_t DATA_OFFSET = SIZE; // DATA_OFFSET equal to Empty ByteArray size
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DECL_VISIT_ARRAY(DATA_OFFSET, 0, GetPointerLength());
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DECL_DUMP()
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private:
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friend class ObjectFactory;
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};
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static_assert(ByteArray::ARRAY_LENGTH_OFFSET == sizeof(TaggedObject));
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static_assert((ByteArray::DATA_OFFSET % static_cast<uint8_t>(MemAlignment::MEM_ALIGN_OBJECT)) == 0);
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_BYTE_ARRAY_H
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