projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 14957cd0 | 1 | /* |
| 81345200 | 2 | * Copyright (C) 2013 Apple Inc. All rights reserved. |
| 14957cd0 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. AND ITS CONTRIBUTORS ``AS IS'' | |
| 14 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, | |
| 15 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS | |
| 17 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 18 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 19 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 20 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 21 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 22 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF | |
| 23 | * THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 | */ | |
| 25 | ||
| 81345200 A |
26 | #ifndef RecursiveAllocationScope_h |
| 27 | #define RecursiveAllocationScope_h | |
| 14957cd0 | 28 | |
| 81345200 A |
29 | #include "Heap.h" |
| 30 | #include "VM.h" | |
| 14957cd0 | 31 | |
| 81345200 | 32 | namespace JSC { |
| 14957cd0 | 33 | |
| 81345200 A |
34 | class RecursiveAllocationScope { |
| 35 | public: | |
| 36 | RecursiveAllocationScope(Heap& heap) | |
| 37 | : m_heap(heap) | |
| 38 | #ifndef NDEBUG | |
| 39 | , m_savedObjectClass(heap.vm()->m_initializingObjectClass) | |
| 40 | #endif | |
| 41 | { | |
| 42 | #ifndef NDEBUG | |
| 43 | m_heap.vm()->m_initializingObjectClass = nullptr; | |
| 44 | #endif | |
| 45 | m_heap.m_deferralDepth++; // Make sure that we don't GC. | |
| 46 | } | |
| 47 | ||
| 48 | ~RecursiveAllocationScope() | |
| 49 | { | |
| 50 | m_heap.m_deferralDepth--; // Decrement deferal manually so we don't GC when we do so since we are already GCing!. | |
| 51 | #ifndef NDEBUG | |
| 52 | m_heap.vm()->m_initializingObjectClass = m_savedObjectClass; | |
| 53 | #endif | |
| 54 | } | |
| 55 | ||
| 56 | private: | |
| 57 | Heap& m_heap; | |
| 58 | #ifndef NDEBUG | |
| 59 | const ClassInfo* m_savedObjectClass; | |
| 60 | #endif | |
| 61 | }; | |
| 62 | ||
| 63 | } | |
| 64 | ||
| 65 | #endif // RecursiveAllocationScope_h |