1/*
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#ifndef ECMASCRIPT_JSDATAVIEW_H
17#define ECMASCRIPT_JSDATAVIEW_H
18
19#include <cstddef>
20#include <cstdint>
21
22#include "ecmascript/ecma_macros.h"
23#include "ecmascript/js_object.h"
24
25namespace panda::ecmascript {
26enum class DataViewType : uint8_t {
27    BIGINT64 = 0, BIGUINT64, FLOAT32, FLOAT64, INT8, INT16, INT32, UINT8, UINT16, UINT32, UINT8_CLAMPED
28};
29
30class JSDataView : public JSObject {
31public:
32    CAST_CHECK(JSDataView, IsDataView);
33
34    static uint32_t GetElementSize(DataViewType type);
35
36    static constexpr size_t DATA_VIEW_OFFSET = JSObject::SIZE;
37    ACCESSORS(DataView, DATA_VIEW_OFFSET, VIEW_ARRAY_BUFFER_OFFSET);
38    ACCESSORS(ViewedArrayBuffer, VIEW_ARRAY_BUFFER_OFFSET, BYTE_LENGTH_OFFSET);
39    ACCESSORS_PRIMITIVE_FIELD(ByteLength, uint32_t, BYTE_LENGTH_OFFSET, BYTE_OFFSET_OFFSET);
40    ACCESSORS_PRIMITIVE_FIELD(ByteOffset, uint32_t, BYTE_OFFSET_OFFSET, LAST_OFFSET);
41    DEFINE_ALIGN_SIZE(LAST_OFFSET);
42
43    DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, DATA_VIEW_OFFSET, BYTE_LENGTH_OFFSET)
44
45    DECL_DUMP()
46};
47}  // namespace panda::ecmascript
48
49#endif  // ECMASCRIPT_JSDATAVIEW_H
50