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Diffstat (limited to 'JavaScriptCore/wtf/PlatformRefPtr.h')
-rw-r--r-- | JavaScriptCore/wtf/PlatformRefPtr.h | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/JavaScriptCore/wtf/PlatformRefPtr.h b/JavaScriptCore/wtf/PlatformRefPtr.h deleted file mode 100644 index e4f1314..0000000 --- a/JavaScriptCore/wtf/PlatformRefPtr.h +++ /dev/null @@ -1,205 +0,0 @@ -/* - * Copyright (C) 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. - * Copyright (C) 2008 Collabora Ltd. - * Copyright (C) 2009 Martin Robinson - * - * 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 PlatformRefPtr_h -#define PlatformRefPtr_h - -#include "AlwaysInline.h" -#include "RefPtr.h" -#include <algorithm> - -namespace WTF { - -enum PlatformRefPtrAdoptType { PlatformRefPtrAdopt }; -template <typename T> inline T* refPlatformPtr(T*); -template <typename T> inline void derefPlatformPtr(T*); -template <typename T> class PlatformRefPtr; -template <typename T> PlatformRefPtr<T> adoptPlatformRef(T*); - -template <typename T> class PlatformRefPtr { -public: - PlatformRefPtr() : m_ptr(0) { } - - PlatformRefPtr(T* ptr) - : m_ptr(ptr) - { - if (ptr) - refPlatformPtr(ptr); - } - - PlatformRefPtr(const PlatformRefPtr& o) - : m_ptr(o.m_ptr) - { - if (T* ptr = m_ptr) - refPlatformPtr(ptr); - } - - template <typename U> PlatformRefPtr(const PlatformRefPtr<U>& o) - : m_ptr(o.get()) - { - if (T* ptr = m_ptr) - refPlatformPtr(ptr); - } - - ~PlatformRefPtr() - { - if (T* ptr = m_ptr) - derefPlatformPtr(ptr); - } - - void clear() - { - T* ptr = m_ptr; - m_ptr = 0; - if (ptr) - derefPlatformPtr(ptr); - } - - T* leakRef() WARN_UNUSED_RETURN - { - T* ptr = m_ptr; - m_ptr = 0; - return ptr; - } - - // Hash table deleted values, which are only constructed and never copied or destroyed. - PlatformRefPtr(HashTableDeletedValueType) : m_ptr(hashTableDeletedValue()) { } - bool isHashTableDeletedValue() const { return m_ptr == hashTableDeletedValue(); } - - T* get() const { return m_ptr; } - T& operator*() const { return *m_ptr; } - ALWAYS_INLINE T* operator->() const { return m_ptr; } - - bool operator!() const { return !m_ptr; } - - // This conversion operator allows implicit conversion to bool but not to other integer types. - typedef T* PlatformRefPtr::*UnspecifiedBoolType; - operator UnspecifiedBoolType() const { return m_ptr ? &PlatformRefPtr::m_ptr : 0; } - - PlatformRefPtr& operator=(const PlatformRefPtr&); - PlatformRefPtr& operator=(T*); - template <typename U> PlatformRefPtr& operator=(const PlatformRefPtr<U>&); - - void swap(PlatformRefPtr&); - friend PlatformRefPtr adoptPlatformRef<T>(T*); - -private: - static T* hashTableDeletedValue() { return reinterpret_cast<T*>(-1); } - // Adopting constructor. - PlatformRefPtr(T* ptr, PlatformRefPtrAdoptType) : m_ptr(ptr) {} - - T* m_ptr; -}; - -template <typename T> inline PlatformRefPtr<T>& PlatformRefPtr<T>::operator=(const PlatformRefPtr<T>& o) -{ - T* optr = o.get(); - if (optr) - refPlatformPtr(optr); - T* ptr = m_ptr; - m_ptr = optr; - if (ptr) - derefPlatformPtr(ptr); - return *this; -} - -template <typename T> inline PlatformRefPtr<T>& PlatformRefPtr<T>::operator=(T* optr) -{ - T* ptr = m_ptr; - if (optr) - refPlatformPtr(optr); - m_ptr = optr; - if (ptr) - derefPlatformPtr(ptr); - return *this; -} - -template <class T> inline void PlatformRefPtr<T>::swap(PlatformRefPtr<T>& o) -{ - std::swap(m_ptr, o.m_ptr); -} - -template <class T> inline void swap(PlatformRefPtr<T>& a, PlatformRefPtr<T>& b) -{ - a.swap(b); -} - -template <typename T, typename U> inline bool operator==(const PlatformRefPtr<T>& a, const PlatformRefPtr<U>& b) -{ - return a.get() == b.get(); -} - -template <typename T, typename U> inline bool operator==(const PlatformRefPtr<T>& a, U* b) -{ - return a.get() == b; -} - -template <typename T, typename U> inline bool operator==(T* a, const PlatformRefPtr<U>& b) -{ - return a == b.get(); -} - -template <typename T, typename U> inline bool operator!=(const PlatformRefPtr<T>& a, const PlatformRefPtr<U>& b) -{ - return a.get() != b.get(); -} - -template <typename T, typename U> inline bool operator!=(const PlatformRefPtr<T>& a, U* b) -{ - return a.get() != b; -} - -template <typename T, typename U> inline bool operator!=(T* a, const PlatformRefPtr<U>& b) -{ - return a != b.get(); -} - -template <typename T, typename U> inline PlatformRefPtr<T> static_pointer_cast(const PlatformRefPtr<U>& p) -{ - return PlatformRefPtr<T>(static_cast<T*>(p.get())); -} - -template <typename T, typename U> inline PlatformRefPtr<T> const_pointer_cast(const PlatformRefPtr<U>& p) -{ - return PlatformRefPtr<T>(const_cast<T*>(p.get())); -} - -template <typename T> inline T* getPtr(const PlatformRefPtr<T>& p) -{ - return p.get(); -} - -template <typename T> PlatformRefPtr<T> adoptPlatformRef(T* p) -{ - return PlatformRefPtr<T>(p, PlatformRefPtrAdopt); -} - -} // namespace WTF - -using WTF::PlatformRefPtr; -using WTF::refPlatformPtr; -using WTF::derefPlatformPtr; -using WTF::adoptPlatformRef; -using WTF::static_pointer_cast; -using WTF::const_pointer_cast; - -#endif // PlatformRefPtr_h |