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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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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_UnresolvedVariableReference_H
#define Patternist_UnresolvedVariableReference_H
#include <private/qemptycontainer_p.h>
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 <frans.englich@nokia.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
#endif
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