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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@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_AtomicMathematician_H
#define Patternist_AtomicMathematician_H
#include <QFlags>
#include "qdynamiccontext_p.h"
#include "qitem_p.h"
#include "qatomictypedispatch_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
namespace QPatternist
{
/**
* @short Base class for classes that performs arithmetic operations between atomic values.
*
* @ingroup Patternist_xdm
* @author Frans Englich <fenglich@trolltech.com>
*/
class Q_AUTOTEST_EXPORT AtomicMathematician : public AtomicTypeVisitorResult
{
public:
virtual ~AtomicMathematician();
typedef QExplicitlySharedDataPointer<AtomicMathematician> Ptr;
enum Operator
{
/**
* @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-divide">XQuery 1.0
* and XPath 2.0 Functions and Operators, 6.2.4 op:numeric-divide</a>
*/
Div = 1,
/**
* @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-integer-divide">XQuery 1.0
* and XPath 2.0 Functions and Operators, 6.2.5 op:numeric-integer-divide</a>
*/
IDiv = 2,
/**
* @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-subtract">XQuery 1.0
* and XPath 2.0 Functions and Operators, 6.2.2 op:numeric-subtract</a>
*/
Substract = 4,
/**
* @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-mod">XQuery 1.0
* and XPath 2.0 Functions and Operators, 6.2.6 op:numeric-mod</a>
*/
Mod = 8,
/**
* @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-multiply">XQuery 1.0
* and XPath 2.0 Functions and Operators, 6.2.3 op:numeric-multiply</a>
*/
Multiply = 16,
/**
* @see <a href="http://www.w3.org/TR/xpath-functions/#func-numeric-add">XQuery 1.0
* and XPath 2.0 Functions and Operators, 6.2.1 op:numeric-add</a>
*/
Add = 32
};
typedef QFlags<Operator> Operators;
virtual Item calculate(const Item &operand1,
const Operator op,
const Item &operand2,
const QExplicitlySharedDataPointer<DynamicContext> &context) const = 0;
static QString displayName(const AtomicMathematician::Operator op);
};
Q_DECLARE_OPERATORS_FOR_FLAGS(AtomicMathematician::Operators)
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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