/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** General Public License version 3 as published by the Free Software
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
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** included in the packaging of this file. Please review the following
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****************************************************************************/

//
//  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_QNameValue_H
#define Patternist_QNameValue_H

#include <private/qitem_p.h>
#include <QXmlName>

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * @short Implements the value instance of the @c xs:QName type.
     *
     * @author Frans Englich <frans.englich@nokia.com>
     * @ingroup Patternist_xdm
     * @see QNameConstructor::expandQName()
     * @see XPathHelper::isQName()
     * @see QXmlUtils
     */
    class QNameValue : public AtomicValue
    {
    public:
        friend class CommonValues;
        friend class QNameComparator;

        typedef QExplicitlySharedDataPointer<QNameValue> Ptr;

        /**
         * Constructs a QNameValue that represents @p name.
         *
         * @param name the QName. May not be @c null.
         * @param np the NamePool.
         * @see QNameConstructor::expandQName()
         * @see XPathHelper::isQName()
         * @see QXmlUtils
         */
        static QNameValue::Ptr fromValue(const NamePool::Ptr &np, const QXmlName name);

        virtual QString stringValue() const;

        virtual ItemType::Ptr type() const;

        inline QXmlName qName() const
        {
            return m_qName;
        }

    private:
        QNameValue(const NamePool::Ptr &np, const QXmlName name);

        const QXmlName         m_qName;
        const NamePool::Ptr m_namePool;
    };
}

QT_END_NAMESPACE

#endif