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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
//
// 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_EBVType_H
#define Patternist_EBVType_H
#include <private/qatomictype_p.h>
#include <private/qsequencetype_p.h>
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Represents the type for which a value of can an Effective %Boolean Value
* be extracted from.
*
* EBVType is an artificial type. It is not available to users of any host language
* or is specified in any specification. It is used for implementing static type
* checking for expressions such as IfThenClause and AndExpression.
*
* @ingroup Patternist_types
* @author Frans Englich <frans.englich@nokia.com>
*/
class EBVType : public ItemType,
public SequenceType
{
public:
typedef QExplicitlySharedDataPointer<EBVType> Ptr;
/**
* @todo docs if it's an ebvable type, etc.
*/
virtual bool itemMatches(const Item &item) const;
virtual bool xdtTypeMatches(const ItemType::Ptr &other) const;
virtual QString displayName(const NamePool::Ptr &np) const;
/**
* @note The semantical meaning of this type's item type can
* surely be discussed. The function is provided due to
* it being mandated by the SequenceType base class.
*
* @returns always 'this' since EBVType is also an ItemType
*/
virtual ItemType::Ptr itemType() const;
/**
* @note The semantical meaning of this type's cardinality
* can surely be discussed. The function is provided due to
* it being mandated by the SequenceType base class.
*
* @returns always Cardinality::zeroOrMore()
*/
virtual Cardinality cardinality() const;
virtual bool isAtomicType() const;
/**
* @returns always @c null
*/
virtual ItemType::Ptr atomizedType() const;
/**
* @returns always BuiltinTypes::item
*/
virtual ItemType::Ptr xdtSuperType() const;
/**
* @returns always @c false
*/
virtual bool isNodeType() const;
protected:
friend class CommonSequenceTypes;
EBVType();
};
}
QT_END_NAMESPACE
#endif
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