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Issue 2730943002: XMLHttpRequest: return null upon failing responseArrayBuffer allocation. (Closed)
Patch Set: mirror updated spec, and return |null| for failed allocs Created 3 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2009 Apple Inc. All rights reserved. 2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions 5 * modification, are permitted provided that the following conditions
6 * are met: 6 * are met:
7 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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43 static inline PassRefPtr<ArrayBuffer> create(unsigned numElements, 43 static inline PassRefPtr<ArrayBuffer> create(unsigned numElements,
44 unsigned elementByteSize); 44 unsigned elementByteSize);
45 static inline PassRefPtr<ArrayBuffer> create(ArrayBuffer*); 45 static inline PassRefPtr<ArrayBuffer> create(ArrayBuffer*);
46 static inline PassRefPtr<ArrayBuffer> create(const void* source, 46 static inline PassRefPtr<ArrayBuffer> create(const void* source,
47 unsigned byteLength); 47 unsigned byteLength);
48 static inline PassRefPtr<ArrayBuffer> create(ArrayBufferContents&); 48 static inline PassRefPtr<ArrayBuffer> create(ArrayBufferContents&);
49 49
50 static inline PassRefPtr<ArrayBuffer> createOrNull(unsigned numElements, 50 static inline PassRefPtr<ArrayBuffer> createOrNull(unsigned numElements,
51 unsigned elementByteSize); 51 unsigned elementByteSize);
52 52
53 // Only for use by XMLHttpRequest::responseArrayBuffer and 53 // Only for use by DOMArrayBuffer::createUninitializedOrNull().
54 // Internals::serializeObject (through DOMArrayBuffer::createUninitialized). 54 static inline PassRefPtr<ArrayBuffer> createUninitializedOrNull(
55 static inline PassRefPtr<ArrayBuffer> createUninitialized(
56 unsigned numElements, 55 unsigned numElements,
57 unsigned elementByteSize); 56 unsigned elementByteSize);
58 57
59 static inline PassRefPtr<ArrayBuffer> createShared(unsigned numElements, 58 static inline PassRefPtr<ArrayBuffer> createShared(unsigned numElements,
60 unsigned elementByteSize); 59 unsigned elementByteSize);
61 static inline PassRefPtr<ArrayBuffer> createShared(const void* source, 60 static inline PassRefPtr<ArrayBuffer> createShared(const void* source,
62 unsigned byteLength); 61 unsigned byteLength);
63 62
64 inline void* data(); 63 inline void* data();
65 inline const void* data() const; 64 inline const void* data() const;
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147 RELEASE_ASSERT(contents.dataMaybeShared()); 146 RELEASE_ASSERT(contents.dataMaybeShared());
148 return adoptRef(new ArrayBuffer(contents)); 147 return adoptRef(new ArrayBuffer(contents));
149 } 148 }
150 149
151 PassRefPtr<ArrayBuffer> ArrayBuffer::createOrNull(unsigned numElements, 150 PassRefPtr<ArrayBuffer> ArrayBuffer::createOrNull(unsigned numElements,
152 unsigned elementByteSize) { 151 unsigned elementByteSize) {
153 return createOrNull(numElements, elementByteSize, 152 return createOrNull(numElements, elementByteSize,
154 ArrayBufferContents::ZeroInitialize); 153 ArrayBufferContents::ZeroInitialize);
155 } 154 }
156 155
157 PassRefPtr<ArrayBuffer> ArrayBuffer::createUninitialized( 156 PassRefPtr<ArrayBuffer> ArrayBuffer::createUninitializedOrNull(
158 unsigned numElements, 157 unsigned numElements,
159 unsigned elementByteSize) { 158 unsigned elementByteSize) {
160 return create(numElements, elementByteSize, 159 return createOrNull(numElements, elementByteSize,
161 ArrayBufferContents::DontInitialize); 160 ArrayBufferContents::DontInitialize);
162 } 161 }
163 162
164 PassRefPtr<ArrayBuffer> ArrayBuffer::create( 163 PassRefPtr<ArrayBuffer> ArrayBuffer::create(
165 unsigned numElements, 164 unsigned numElements,
166 unsigned elementByteSize, 165 unsigned elementByteSize,
167 ArrayBufferContents::InitializationPolicy policy) { 166 ArrayBufferContents::InitializationPolicy policy) {
168 ArrayBufferContents contents(numElements, elementByteSize, 167 ArrayBufferContents contents(numElements, elementByteSize,
169 ArrayBufferContents::NotShared, policy); 168 ArrayBufferContents::NotShared, policy);
170 RELEASE_ASSERT(contents.data()); 169 RELEASE_ASSERT(contents.data());
171 return adoptRef(new ArrayBuffer(contents)); 170 return adoptRef(new ArrayBuffer(contents));
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263 if (index < 0) 262 if (index < 0)
264 index = currentLength + index; 263 index = currentLength + index;
265 return clampValue(index, 0, currentLength); 264 return clampValue(index, 0, currentLength);
266 } 265 }
267 266
268 } // namespace WTF 267 } // namespace WTF
269 268
270 using WTF::ArrayBuffer; 269 using WTF::ArrayBuffer;
271 270
272 #endif // ArrayBuffer_h 271 #endif // ArrayBuffer_h
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