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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef PASSOWNPTR_H
#define PASSOWNPTR_H
#include <qscopedpointer.h>
template <typename T> class PassOwnPtr;
template <typename PtrType> PassOwnPtr<PtrType> adoptPtr(PtrType*);
template <typename T>
struct OwnPtr : public QScopedPointer<T>
{
OwnPtr() {}
OwnPtr(const PassOwnPtr<T> &ptr)
: QScopedPointer<T>(ptr.leakRef())
{}
OwnPtr(const OwnPtr<T>& other)
: QScopedPointer<T>(const_cast<OwnPtr<T> &>(other).take())
{}
OwnPtr& operator=(const OwnPtr<T>& other)
{
this->reset(const_cast<OwnPtr<T> &>(other).take());
return *this;
}
T* get() const { return this->data(); }
PassOwnPtr<T> release()
{
return adoptPtr(this->take());
}
};
template <typename T>
class PassOwnPtr {
public:
PassOwnPtr() {}
PassOwnPtr(T* ptr)
: m_ptr(ptr)
{
}
PassOwnPtr(const PassOwnPtr<T>& other)
: m_ptr(other.leakRef())
{
}
PassOwnPtr(const OwnPtr<T>& other)
: m_ptr(other.take())
{
}
~PassOwnPtr()
{
}
T* operator->() const { return m_ptr.data(); }
T* leakRef() const { return m_ptr.take(); }
private:
template <typename PtrType> friend PassOwnPtr<PtrType> adoptPtr(PtrType*);
PassOwnPtr<T>& operator=(const PassOwnPtr<T>& t);
mutable QScopedPointer<T> m_ptr;
};
template <typename T>
PassOwnPtr<T> adoptPtr(T* ptr)
{
PassOwnPtr<T> result;
result.m_ptr.reset(ptr);
return result;
}
#endif // PASSOWNPTR_H
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