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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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_StaticNamespacesContainer_H
#define Patternist_StaticNamespacesContainer_H
#include "qfunctioncall_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short A helper subclass that stores a NamespaceResolver for the static
* namespaces.
*
* This is used by functionality which needs to resolve names against the
* statically known namespaces, at runtime. A good example of this is @c
* function-available().
*
* The resolver is accessed through staticNamespaces(), which will be
* available after the typeCheck() stage.
*
* This class must be subclassed.
*
* @author Frans Englich <frans.englich@nokia.com>
* @ingroup Patternist_functions
*/
class StaticNamespacesContainer : public FunctionCall
{
public:
/**
* Reimplemented to store data from the @p context.
*/
virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
const SequenceType::Ptr &reqType);
protected:
/**
* Before typeCheck(), behavior of this function is undefined. After
* typeCheck(), this function guarantees to return a valid pointer.
*/
inline const NamespaceResolver::Ptr &staticNamespaces() const
{
Q_ASSERT(m_resolver);
return m_resolver;
}
/**
* This constructor only exists to ensure this class is subclassed.
*/
inline StaticNamespacesContainer()
{
}
private:
NamespaceResolver::Ptr m_resolver;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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