Move Source/WTF/wtf to Source/wtf

Source/WTF/wtf/ListRefPtr.h

-/*
- *  Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
- *
- *  This library is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU Library General Public
- *  License as published by the Free Software Foundation; either
- *  version 2 of the License, or (at your option) any later version.
- *
- *  This library is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  Library General Public License for more details.
- *
- *  You should have received a copy of the GNU Library General Public License
- *  along with this library; see the file COPYING.LIB.  If not, write to
- *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- *  Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef WTF_ListRefPtr_h
-#define WTF_ListRefPtr_h
-
-#include <wtf/RefPtr.h>
-
-namespace WTF {
-
-    // Specialized version of RefPtr desgined for use in singly-linked lists. 
-    // Derefs the list iteratively to avoid recursive derefing that can overflow the stack.
-    template <typename T> class ListRefPtr : public RefPtr<T> {
-    public:
-        ListRefPtr() : RefPtr<T>() {}
-        ListRefPtr(T* ptr) : RefPtr<T>(ptr) {}
-        ListRefPtr(const RefPtr<T>& o) : RefPtr<T>(o) {}
-        // see comment in PassRefPtr.h for why this takes const reference
-        template <typename U> ListRefPtr(const PassRefPtr<U>& o) : RefPtr<T>(o) {}
-        
-        ~ListRefPtr()
-        {
-            RefPtr<T> reaper = this->release();
-            while (reaper && reaper->hasOneRef())
-                reaper = reaper->releaseNext(); // implicitly protects reaper->next, then derefs reaper
-        }
-        
-        ListRefPtr& operator=(T* optr) { RefPtr<T>::operator=(optr); return *this; }
-        ListRefPtr& operator=(const RefPtr<T>& o) { RefPtr<T>::operator=(o); return *this; }
-        ListRefPtr& operator=(const PassRefPtr<T>& o) { RefPtr<T>::operator=(o); return *this; }
-        template <typename U> ListRefPtr& operator=(const RefPtr<U>& o) { RefPtr<T>::operator=(o); return *this; }
-        template <typename U> ListRefPtr& operator=(const PassRefPtr<U>& o) { RefPtr<T>::operator=(o); return *this; }
-    };
-
-    template <typename T> inline T* getPtr(const ListRefPtr<T>& p)
-    {
-        return p.get();
-    }
-
-} // namespace WTF
-
-using WTF::ListRefPtr;
-
-#endif // WTF_ListRefPtr_h