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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#pragma once

namespace Timeline {

template<class Base>
class SafeCastable
{
public:
    template<class Derived>
    bool is() const
    {
        return static_cast<const Base *>(this)->classId() == Derived::staticClassId;
    }

    template<class Derived>
    Derived &asRef()
    {
        Q_ASSERT(is<Derived>());
        return static_cast<Derived &>(*this);
    }

    template<class Derived>
    const Derived &asConstRef() const
    {
        Q_ASSERT(is<Derived>());
        return static_cast<const Derived &>(*this);
    }

    template<class Derived>
    Derived &&asRvalueRef()
    {
        Q_ASSERT(is<Derived>());
        return static_cast<Derived &&>(*this);
    }
};

} // namespace Timeline