/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtXmlPatterns module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  It exists purely as an+
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// implementation detail.  This header file may change from version to+
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// version without notice, or even be removed.+
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//+
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// We mean it.+
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+
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#ifndef QPatternist_AutoPtr_p_h+
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#define QPatternist_AutoPtr_p_h+
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+
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#include <QtGlobal>+
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+
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QT_BEGIN_NAMESPACE+
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+
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namespace QPatternist+
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{+
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    template<typename T>+
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    class AutoPtrRef+
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    {+
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    public:+
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        explicit AutoPtrRef(T *const other) : m_ptr(other)+
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        {+
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        }+
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+
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        T* m_ptr;+
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    };+
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+
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    template<typename T>+
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    class AutoPtr+
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    {+
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    public:+
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        explicit inline AutoPtr(T *pointer = 0) : m_ptr(pointer)+
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        {+
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        }+
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+
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        inline AutoPtr(AutoPtr<T> &other) : m_ptr(other.release())+
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        {+
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        }+
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+
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        inline ~AutoPtr()+
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        {+
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            delete m_ptr;+
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        }+
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+
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        inline T &operator*() const+
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        {+
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            Q_ASSERT_X(m_ptr, Q_FUNC_INFO, "");+
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            return *m_ptr;+
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        }+
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+
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        T *operator->() const+
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        {+
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            Q_ASSERT_X(m_ptr, Q_FUNC_INFO, "");+
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            return m_ptr;+
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        }+
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+
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        inline bool operator!() const+
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        {+
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            return !m_ptr;+
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        }+
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+
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        inline operator bool() const+
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        {+
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            return m_ptr != 0;+
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        }+
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+
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        AutoPtr(AutoPtrRef<T> ref) : m_ptr(ref.m_ptr)+
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        {+
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        }+
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+
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        AutoPtr& operator=(AutoPtrRef<T> ref)+
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        {+
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            if(ref.m_ptr != m_ptr)+
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            {+
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                delete m_ptr;+
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                m_ptr = ref.m_ptr;+
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            }+
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            return *this;+
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        }+
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+
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#ifndef QT_NO_MEMBER_TEMPLATES+
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        template<typename L>+
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        operator AutoPtrRef<L>()+
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        {+
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            return AutoPtrRef<L>(this->release());+
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        }+
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+
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        template<typename L>+
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        operator AutoPtr<L>()+
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        {+
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            return AutoPtr<L>(this->release());+
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        }+
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+
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        template<typename L>+
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        inline AutoPtr(AutoPtr<L>& other) : m_ptr(other.release())+
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        {+
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        }+
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#endif+
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+
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        inline T *release()+
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        {+
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            T *const retval = m_ptr;+
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            m_ptr = 0;+
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            return retval;+
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        }+
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+
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        inline T *data() const+
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        {+
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            return m_ptr;+
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        }+
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+
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        void reset(T * other = 0)+
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        {+
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            if(other != m_ptr)+
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            {+
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                delete m_ptr;+
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                m_ptr = other;+
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            }+
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        }+
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+
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        inline AutoPtr &operator=(AutoPtr &other)+
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        {+
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            reset(other.release());+
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            return *this;+
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        }+
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+
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    private:+
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        T *m_ptr;+
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    };+
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}+
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+
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QT_END_NAMESPACE+
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#endif+
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