JavaScriptCore-1218.tar.gz

[apple/javascriptcore.git] / runtime / StorageBarrier.h

diff --git a/runtime/StorageBarrier.h b/runtime/StorageBarrier.h
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--- a/runtime/StorageBarrier.h
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-/*
- * Copyright (C) 2011 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 StorageBarrier_h
-#define StorageBarrier_h
-
-#include "JSGlobalData.h"
-#include "WriteBarrier.h"
-
-namespace JSC {
-
-typedef WriteBarrierBase<Unknown>* PropertyStorage;
-typedef const WriteBarrierBase<Unknown>* ConstPropertyStorage;
-
-class StorageBarrier {
-public:
-    enum UncheckedTag { Unchecked };
-    StorageBarrier(JSGlobalData& globalData, JSCell* owner, PropertyStorage storage)
-    {
-        set(globalData, owner, storage);
-    }
-    
-    StorageBarrier(PropertyStorage storage, UncheckedTag)
-    {
-        set(storage, Unchecked);
-    }
-    
-    void set(JSGlobalData&, JSCell*, PropertyStorage newStorage)
-    {
-        m_storage = newStorage;
-    }
-    
-    void set(PropertyStorage newStorage, UncheckedTag)
-    {
-        m_storage = newStorage;
-    }
-    
-    WriteBarrierBase<Unknown>* operator->() const { return m_storage; }
-    WriteBarrierBase<Unknown>* operator->() { return m_storage; }
-    WriteBarrierBase<Unknown> operator*() const { return *m_storage; }
-    WriteBarrierBase<Unknown> operator*() { return *m_storage; }
-    const WriteBarrierBase<Unknown>& operator[](size_t i) const { return m_storage[i]; }
-    WriteBarrierBase<Unknown>& operator[](size_t i) { return m_storage[i]; }
-    
-    ConstPropertyStorage get() const { return m_storage; }
-    PropertyStorage get() { return m_storage; }
-    
-private:
-    PropertyStorage m_storage;
-};
-
-}
-
-#endif