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4669062b16
Signed-off-by: g00416891 <guobingbing3@huawei.com> Change-Id: I3113af0caddc39519d070cc370d1843e6177982c
54 lines
1.9 KiB
C++
54 lines
1.9 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_JSARRAYBUFFER_H
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#define ECMASCRIPT_JSARRAYBUFFER_H
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#include "ecmascript/js_object.h"
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namespace panda::ecmascript {
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class JSArrayBuffer final : public JSObject {
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public:
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CAST_NO_CHECK(JSArrayBuffer);
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// 6.2.6.2
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static void CopyDataBlockBytes(JSTaggedValue toBlock, JSTaggedValue fromBlock, int32_t fromIndex, int32_t count);
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static void CopyDataPointBytes(void *toBuf, void *fromBuf, int32_t fromIndex, int32_t count);
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void Attach(JSThread *thread, uint32_t arrayBufferByteLength, JSTaggedValue arrayBufferData);
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void Detach(JSThread *thread);
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bool IsDetach()
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{
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JSTaggedValue arrayBufferData = GetArrayBufferData();
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return arrayBufferData.IsNull();
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}
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static constexpr size_t DATA_OFFSET = JSObject::SIZE;
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ACCESSORS(ArrayBufferData, DATA_OFFSET, BYTE_LENGTH_OFFSET)
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ACCESSORS_PRIMITIVE_FIELD(ArrayBufferByteLength, uint32_t, BYTE_LENGTH_OFFSET, BIT_FIELD_OFFSET)
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ACCESSORS_BIT_FIELD(BitField, BIT_FIELD_OFFSET, LAST_OFFSET)
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DEFINE_ALIGN_SIZE(LAST_OFFSET);
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// define BitField
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static constexpr size_t SHARED_BITS = 2;
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FIRST_BIT_FIELD(BitField, Shared, bool, SHARED_BITS)
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DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, DATA_OFFSET, BYTE_LENGTH_OFFSET)
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DECL_DUMP()
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_JSARRAYBUFFER_H
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