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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2017-06-27 06:07:23 +0000 |
commit | 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c (patch) | |
tree | 46dcd36c86e7fbc6e5df36deb463b33e9967a6f7 /Source/JavaScriptCore/heap/CopyWriteBarrier.h | |
parent | 32761a6cee1d0dee366b885b7b9c777e67885688 (diff) | |
download | WebKitGtk-tarball-master.tar.gz |
webkitgtk-2.16.5HEADwebkitgtk-2.16.5master
Diffstat (limited to 'Source/JavaScriptCore/heap/CopyWriteBarrier.h')
-rw-r--r-- | Source/JavaScriptCore/heap/CopyWriteBarrier.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/Source/JavaScriptCore/heap/CopyWriteBarrier.h b/Source/JavaScriptCore/heap/CopyWriteBarrier.h deleted file mode 100644 index 847712666..000000000 --- a/Source/JavaScriptCore/heap/CopyWriteBarrier.h +++ /dev/null @@ -1,90 +0,0 @@ -/* - * Copyright (C) 2014 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF - * THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef CopyWriteBarrier_h -#define CopyWriteBarrier_h - -#include "Heap.h" - -namespace JSC { - -template <typename T> -class CopyWriteBarrier { -public: - CopyWriteBarrier() - : m_value(0) - { - } - - CopyWriteBarrier(VM& vm, const JSCell* owner, T& value) - { - this->set(vm, owner, &value); - } - - CopyWriteBarrier(VM& vm, const JSCell* owner, T* value) - { - this->set(vm, owner, value); - } - - bool operator!() const { return !m_value; } - - typedef T* (CopyWriteBarrier::*UnspecifiedBoolType); - operator UnspecifiedBoolType*() const { return m_value ? reinterpret_cast<UnspecifiedBoolType*>(1) : 0; } - - T* get() const - { - return m_value; - } - - T* operator*() const - { - return get(); - } - - T* operator->() const - { - return get(); - } - - void set(VM&, const JSCell* owner, T* value) - { - this->m_value = value; - Heap::writeBarrier(owner); - } - - void setWithoutWriteBarrier(T* value) - { - this->m_value = value; - } - - void clear() { m_value = 0; } - -private: - T* m_value; -}; - -} // namespace JSC - -#endif // CopyWriteBarrier_h |