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/****************************************************************************
**
** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the $MODULE$ of the Qt Toolkit.
**
** $TROLLTECH_DUAL_LICENSE$
**
****************************************************************************/
//
// 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_XsdAttributeReference_H
#define Patternist_XsdAttributeReference_H
#include "qxsdattributeuse_p.h"
#include <QtXmlPatterns/QSourceLocation>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short A helper class for attribute reference resolving.
*
* For easy resolving of attribute references, we have this class
* that can be used as a place holder for the real attribute use
* object it is referring to.
* So whenever the parser detects an attribute reference, it creates
* a XsdAttributeReference and returns it instead of the XsdAttributeUse.
* During a later phase, the resolver will look for all XsdAttributeReferences
* in the schema and will replace them with their referring XsdAttributeUse
* objects.
*
* @ingroup Patternist_schema
* @author Tobias Koenig <tobias.koenig@trolltech.com>
*/
class XsdAttributeReference : public XsdAttributeUse
{
public:
typedef QExplicitlySharedDataPointer<XsdAttributeReference> Ptr;
/**
* Describes the type of the attribute reference.
*/
enum Type
{
AttributeUse, ///< The reference points to an attribute use.
AttributeGroup ///< The reference points to an attribute group.
};
/**
* Always returns false, used to avoid dynamic casts.
*/
virtual bool isAttributeUse() const;
/**
* Always returns true, used to avoid dynamic casts.
*/
virtual bool isReference() const;
/**
* Sets the @p type of the attribute reference.
*/
void setType(Type type);
/**
* Returns the type of the attribute reference.
*/
Type type() const;
/**
* Sets the @p name of the attribute or attribute group the
* attribute reference refers to.
*/
void setReferenceName(const QXmlName &name);
/**
* Returns the name of the attribute or attribute group the
* attribute reference refers to.
*/
QXmlName referenceName() const;
/**
* Sets the source @p location where the reference is located.
*/
void setSourceLocation(const QSourceLocation &location);
/**
* Returns the source location where the reference is located.
*/
QSourceLocation sourceLocation() const;
private:
Type m_type;
QXmlName m_referenceName;
QSourceLocation m_sourceLocation;
};
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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