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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** 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
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_XsdAttributeReference_H
#define Patternist_XsdAttributeReference_H
#include <private/qxsdattributeuse_p.h>
#include <QtXmlPatterns/QSourceLocation>
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@nokia.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
#endif
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