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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef DOMSharedArrayBuffer_h | 5 #ifndef DOMSharedArrayBuffer_h |
6 #define DOMSharedArrayBuffer_h | 6 #define DOMSharedArrayBuffer_h |
7 | 7 |
8 #include "core/CoreExport.h" | 8 #include "core/CoreExport.h" |
9 #include "core/dom/DOMArrayBufferBase.h" | 9 #include "core/dom/DOMArrayBufferBase.h" |
10 #include "wtf/ArrayBuffer.h" | 10 #include "wtf/ArrayBuffer.h" |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 class CORE_EXPORT DOMSharedArrayBuffer final : public DOMArrayBufferBase { | 14 class CORE_EXPORT DOMSharedArrayBuffer final : public DOMArrayBufferBase { |
15 DEFINE_WRAPPERTYPEINFO(); | 15 DEFINE_WRAPPERTYPEINFO(); |
16 public: | 16 public: |
17 static PassRefPtr<DOMSharedArrayBuffer> create(PassRefPtr<WTF::ArrayBuffer>
buffer) | 17 static PassRefPtr<DOMSharedArrayBuffer> createOrNull(PassRefPtr<WTF::ArrayBu
ffer> buffer) |
18 { | 18 { |
| 19 if (!buffer) |
| 20 return nullptr; |
19 ASSERT(buffer->isShared()); | 21 ASSERT(buffer->isShared()); |
20 return adoptRef(new DOMSharedArrayBuffer(buffer)); | 22 return adoptRef(new DOMSharedArrayBuffer(buffer)); |
21 } | 23 } |
22 static PassRefPtr<DOMSharedArrayBuffer> create(unsigned numElements, unsigne
d elementByteSize) | 24 static PassRefPtr<DOMSharedArrayBuffer> createOrNull(unsigned numElements, u
nsigned elementByteSize) |
23 { | 25 { |
24 return create(WTF::ArrayBuffer::createShared(numElements, elementByteSiz
e)); | 26 return createOrNull(WTF::ArrayBuffer::createSharedOrNull(numElements, el
ementByteSize)); |
25 } | 27 } |
26 static PassRefPtr<DOMSharedArrayBuffer> create(const void* source, unsigned
byteLength) | 28 static PassRefPtr<DOMSharedArrayBuffer> createOrNull(const void* source, uns
igned byteLength) |
27 { | 29 { |
28 return create(WTF::ArrayBuffer::createShared(source, byteLength)); | 30 return createOrNull(WTF::ArrayBuffer::createSharedOrNull(source, byteLen
gth)); |
29 } | 31 } |
30 static PassRefPtr<DOMSharedArrayBuffer> create(WTF::ArrayBufferContents& con
tents) | 32 static PassRefPtr<DOMSharedArrayBuffer> create(WTF::ArrayBufferContents& con
tents) |
31 { | 33 { |
32 ASSERT(contents.isShared()); | 34 ASSERT(contents.isShared()); |
33 return create(WTF::ArrayBuffer::create(contents)); | 35 return adoptRef(new DOMSharedArrayBuffer(WTF::ArrayBuffer::create(conten
ts))); |
34 } | 36 } |
35 | 37 |
36 v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationConte
xt) override; | 38 v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationConte
xt) override; |
37 | 39 |
38 private: | 40 private: |
39 explicit DOMSharedArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer) | 41 explicit DOMSharedArrayBuffer(PassRefPtr<WTF::ArrayBuffer> buffer) |
40 : DOMArrayBufferBase(buffer) | 42 : DOMArrayBufferBase(buffer) |
41 { | 43 { |
42 } | 44 } |
43 }; | 45 }; |
44 | 46 |
45 } // namespace blink | 47 } // namespace blink |
46 | 48 |
47 #endif // DOMSharedArrayBuffer_h | 49 #endif // DOMSharedArrayBuffer_h |
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