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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef Patternist_StaticBaseUriContainer_H
#define Patternist_StaticBaseUriContainer_H

#include <QUrl>

#include "qfunctioncall_p.h"

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * @short Base class for functions that needs to
     * store the static base URI for use at runtime.
     *
     * @ingroup Patternist_functions
     * @author Frans Englich <fenglich@trolltech.com>
     */
    class StaticBaseUriContainer : public FunctionCall
    {
    protected:
        inline StaticBaseUriContainer()
        {
        }

        inline void prepareStaticBaseURI(const StaticContext::Ptr &context)
        {
            m_staticBaseURI = context->baseURI();
        }

        inline const QUrl &staticBaseURI() const
        {
            return m_staticBaseURI;
        }

        /**
         * Calls prepareStaticBaseURI(), and return the return value of
         * FunctionCall::typeCheck(), forwarding the arguments.
         */
        virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
                                          const SequenceType::Ptr &reqType)
        {
            prepareStaticBaseURI(context);
            return FunctionCall::typeCheck(context, reqType);
        }

    private:
        Q_DISABLE_COPY(StaticBaseUriContainer)
        QUrl m_staticBaseURI;
    };
}

QT_END_NAMESPACE
QT_END_HEADER
#endif