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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtQml module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef REFPTR_H
#define REFPTR_H
#include "PassRefPtr.h"
template <typename T>
class RefPtr {
public:
RefPtr() : m_ptr(0) {}
RefPtr(const RefPtr<T> &other)
: m_ptr(other.m_ptr)
{
if (m_ptr)
m_ptr->ref();
}
RefPtr<T>& operator=(const RefPtr<T>& other)
{
if (other.m_ptr)
other.m_ptr->ref();
if (m_ptr)
m_ptr->deref();
m_ptr = other.m_ptr;
return *this;
}
RefPtr(const PassRefPtr<T>& other)
: m_ptr(other.leakRef())
{
}
~RefPtr()
{
if (m_ptr)
m_ptr->deref();
}
T* operator->() const { return m_ptr; }
T* get() const { return m_ptr; }
bool operator!() const { return !m_ptr; }
PassRefPtr<T> release()
{
T* ptr = m_ptr;
m_ptr = 0;
return adoptRef(ptr);
}
private:
T* m_ptr;
};
#endif // REFPTR_H
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