projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| f9bf01c6 | 1 | /* |
| 81345200 | 2 | * Copyright (C) 2009, 2013 Apple Inc. All rights reserved. |
| f9bf01c6 A |
3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions | |
| 6 | * are met: | |
| 7 | * 1. Redistributions of source code must retain the above copyright | |
| 8 | * notice, this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 | * notice, this list of conditions and the following disclaimer in the | |
| 11 | * documentation and/or other materials provided with the distribution. | |
| 12 | * | |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 | */ | |
| 25 | ||
| 26 | #include "config.h" | |
| 81345200 | 27 | #include "ArrayBuffer.h" |
| f9bf01c6 | 28 | |
| 81345200 A |
29 | #include "ArrayBufferNeuteringWatchpoint.h" |
| 30 | #include "JSArrayBufferView.h" | |
| 31 | #include "JSCInlines.h" | |
| 32 | #include <wtf/RefPtr.h> | |
| f9bf01c6 A |
33 | |
| 34 | namespace JSC { | |
| 35 | ||
| 81345200 | 36 | bool ArrayBuffer::transfer(ArrayBufferContents& result) |
| f9bf01c6 | 37 | { |
| 81345200 | 38 | Ref<ArrayBuffer> protect(*this); |
| 93a37866 | 39 | |
| 81345200 A |
40 | if (!m_contents.m_data) { |
| 41 | result.m_data = 0; | |
| 42 | return false; | |
| 43 | } | |
| 44 | ||
| 45 | bool isNeuterable = !m_pinCount; | |
| 46 | ||
| 47 | if (isNeuterable) | |
| 48 | m_contents.transfer(result); | |
| 49 | else { | |
| 50 | m_contents.copyTo(result); | |
| 51 | if (!result.m_data) | |
| 52 | return false; | |
| 53 | } | |
| 54 | ||
| 55 | for (size_t i = numberOfIncomingReferences(); i--;) { | |
| 56 | JSCell* cell = incomingReferenceAt(i); | |
| 57 | if (JSArrayBufferView* view = jsDynamicCast<JSArrayBufferView*>(cell)) | |
| 58 | view->neuter(); | |
| 59 | else if (ArrayBufferNeuteringWatchpoint* watchpoint = jsDynamicCast<ArrayBufferNeuteringWatchpoint*>(cell)) | |
| ed1e77d3 | 60 | watchpoint->fireAll(); |
| 81345200 A |
61 | } |
| 62 | return true; | |
| f9bf01c6 A |
63 | } |
| 64 | ||
| 6fe7ccc8 | 65 | } // namespace JSC |
| f9bf01c6 | 66 |