1 /*
2 * Copyright (c) 2021 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 #include "jerryscript_native_array_buffer.h"
17
18 #include "jerryscript_native_data_view.h"
19
JerryScriptNativeDataView(JerryScriptNativeEngine * engine,NativeValue * value,size_t length,size_t offset)20 JerryScriptNativeDataView::JerryScriptNativeDataView(JerryScriptNativeEngine* engine,
21 NativeValue* value,
22 size_t length,
23 size_t offset)
24 : JerryScriptNativeDataView(engine, jerry_create_dataview((jerry_value_t)*value, offset, length))
25 {
26 }
27
JerryScriptNativeDataView(JerryScriptNativeEngine * engine,jerry_value_t value)28 JerryScriptNativeDataView::JerryScriptNativeDataView(JerryScriptNativeEngine* engine, jerry_value_t value)
29 : JerryScriptNativeObject(engine, value)
30 {
31 }
32
~JerryScriptNativeDataView()33 JerryScriptNativeDataView::~JerryScriptNativeDataView() {}
34
GetInterface(int interfaceId)35 void* JerryScriptNativeDataView::GetInterface(int interfaceId)
36 {
37 return (NativeDataView::INTERFACE_ID == interfaceId) ? (NativeDataView*)this
38 : JerryScriptNativeObject::GetInterface(interfaceId);
39 }
40
GetBuffer()41 void* JerryScriptNativeDataView::GetBuffer()
42 {
43 jerry_value_t arrybuffer = jerry_get_dataview_buffer(value_, nullptr, nullptr);
44 uint8_t* data = jerry_get_arraybuffer_pointer(arrybuffer);
45 jerry_release_value(arrybuffer);
46 return data;
47 }
48
GetLength()49 size_t JerryScriptNativeDataView::GetLength()
50 {
51 jerry_value_t arrybuffer = jerry_get_dataview_buffer(value_, nullptr, nullptr);
52 uint32_t length = jerry_get_arraybuffer_byte_length(arrybuffer);
53 jerry_release_value(arrybuffer);
54 return length;
55 }
56
GetArrayBuffer()57 NativeValue* JerryScriptNativeDataView::GetArrayBuffer()
58 {
59 return new JerryScriptNativeArrayBuffer(engine_, jerry_get_dataview_buffer(value_, nullptr, nullptr));
60 }
61
GetOffset()62 size_t JerryScriptNativeDataView::GetOffset()
63 {
64 size_t offset = 0;
65 size_t length = 0;
66 jerry_value_t arrybuffer = jerry_get_dataview_buffer(value_, &offset, &length);
67 jerry_release_value(arrybuffer);
68 return offset;
69 }
70