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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_SequenceType_H
#define Patternist_SequenceType_H
template<typename T> class QList;
#include <QSharedData>
#include "qcardinality_p.h"
#include "qitemtype_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
class ItemType;
/**
* @short A SequenceType instance represents the type of a sequence of Item
* instances.
*
* It carries a Cardinality and ItemType, and is hence conceptually
* identical to the SequenceType EBNF construct.
*
* @ingroup Patternist_types
* @author Frans Englich <frans.englich@nokia.com>
* @see <a href="http://www.w3.org/TR/xpath20/#id-sequencetype-syntax">XML
* Path Language (XPath) 2.0, 2.5.3 SequenceType Syntax</a>
*/
class SequenceType : public virtual QSharedData
{
public:
inline SequenceType()
{
}
/**
* A smart pointer wrapping SequenceType instances.
*/
typedef QExplicitlySharedDataPointer<const SequenceType> Ptr;
/**
* A list of SequenceType instances, each wrapped in a smart pointer.
*/
typedef QList<SequenceType::Ptr> List;
virtual ~SequenceType();
/**
* Generates a name for the sequence type for display purposes. The
* prefix used for the QName identifying the schema type is conventional.
* An example of a display name for a SequenceType is "xs:integer?".
*/
virtual QString displayName(const NamePool::Ptr &np) const = 0;
virtual Cardinality cardinality() const = 0;
virtual ItemType::Ptr itemType() const = 0;
/**
* Determines whether @p other is identical to, or a sub-type
* of this SequenceType. For example, if this SequenceType is
* <tt>xs:anyAtomicType</tt>, @c false is returned if @p other is <tt>element()</tt>,
* but @c true if @p other is <tt>xs:string</tt>.
*
* The return values of cardinality() and itemType() used with ItemType::xdtTypeMatches
* and Cardinality::isWithinScope() is used for achieving this.
*
* @see <a href="http://www.w3.org/TR/xquery/#id-sequencetype-matching">XQuery 1.0:
* An XML Query Language, 2.5.4 SequenceType Matching</a>
*/
bool matches(const SequenceType::Ptr other) const;
bool is(const SequenceType::Ptr &other) const;
private:
Q_DISABLE_COPY(SequenceType)
};
}
Q_DECLARE_TYPEINFO(QPatternist::SequenceType::Ptr, Q_MOVABLE_TYPE);
QT_END_NAMESPACE
QT_END_HEADER
#endif
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