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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 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 http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_UnresolvedVariableReference_H
#define Patternist_UnresolvedVariableReference_H
#include "qemptycontainer_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Compile time only AST-node which is a marker for variable
* references whose declaration has not yet appeared in the source code.
*
* This can not appear in XQuery, but can in XSL-T.
*
* @author Frans Englich <fenglich@trolltech.com>
* @ingroup Patternist_expressions
* @since 4.5
*/
class Q_AUTOTEST_EXPORT UnresolvedVariableReference : public EmptyContainer
{
public:
UnresolvedVariableReference(const QXmlName &name);
virtual Expression::Ptr typeCheck(const StaticContext::Ptr &context,
const SequenceType::Ptr &reqType);
virtual SequenceType::List expectedOperandTypes() const;
virtual SequenceType::Ptr staticType() const;
virtual ExpressionVisitorResult::Ptr accept(const ExpressionVisitor::Ptr &visitor) const;
virtual ID id() const;
inline void bindTo(const Expression::Ptr &body);
inline Expression::Ptr replacement() const;
private:
const QXmlName m_name;
Expression::Ptr m_replacement;
};
void UnresolvedVariableReference::bindTo(const Expression::Ptr &body)
{
Q_ASSERT(body);
m_replacement = body;
}
Expression::Ptr UnresolvedVariableReference::replacement() const
{
Q_ASSERT(m_replacement);
return m_replacement;
}
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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