Windows-4.7.4/src/xmlpatterns/data/qatomicmathematicians_p.h

/****************************************************************************
**
** Copyright (C) 2011 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

//
//  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_AtomicMathematicians_H
#define Patternist_AtomicMathematicians_H

#include "qatomicmathematician_p.h"
#include "qsourcelocationreflection_p.h"

/**
 * @file
 * @short Contains classes performing arithemetic operations between atomic values, such as
 * subtracting two dates.
 */

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class DecimalMathematician : public AtomicMathematician
                               , public DelegatingSourceLocationReflection
    {
    public:
        inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
        {
        }

        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };

    /**
     * @short Performs arithmetics between Integer values.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class IntegerMathematician : public AtomicMathematician
                               , public DelegatingSourceLocationReflection
    {
    public:
        inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
        {
        }

        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };

    /**
     * @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration
     * and Double values.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class DurationNumericMathematician : public AtomicMathematician
                                       , public DelegatingSourceLocationReflection
    {
    public:
        inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
        {
        }

        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };

    /**
     * @short Performs division between DayTimeDuration and DayTimeDuration, or
     * YearMonthDuration and YearMonthDuration.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class DurationDurationDivisor : public AtomicMathematician
    {
    public:
        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };

    /**
     * @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or
     * YearMonthDuration and YearMonthDuration.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class DurationDurationMathematician : public AtomicMathematician
    {
    public:
        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };

    /**
     * @short Delegates an AtomicMathematician and switches its operands.
     *
     * Switches the operands of the call to a call to the calculate()
     * on an AtomicMathematician such that the left operand becomes the right, and
     * vice versa.
     *
     * Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician
     * should act as as a middle-man for, having the role of switching the two operands. Thus,
     * OperandSwitcherMathematician can be described as a proxy or delegator class.
     *
     * This class is used for implementing operator combinations such as
     * <tt>numeric * xs:yearMonthDuration</tt> and
     * <tt>xs:yearMonthDuration * numeric</tt>.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class OperandSwitcherMathematician : public AtomicMathematician
    {
    public:
        /**
         * Creates an OperandSwitcherMathematician.
         *
         * @param mathematician the AtomicMathematician this OperandSwitcherMathematician
         * should switch the operands for. Must be a non @c null, valid pointer.
         */
        OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician);

        /**
         * Switch @p o1 and @p o2, and returns the value from the AtomicMathematician
         * this OperandSwitcherMathematician represents.
         */
        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    private:
        const AtomicMathematician::Ptr m_mather;
    };

    /**
     * @short Performs arithmetics between an AbstractDateTime value and
     * an AbstractDuration value.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class DateTimeDurationMathematician : public AtomicMathematician
                                        , public DelegatingSourceLocationReflection
    {
    public:

        inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
        {
        }

        /**
         * @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration.
         *
         */
        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };

    /**
     * @short Performs arithmetics between two AbstractDateTime values.
     *
     * @ingroup Patternist_xdm
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class AbstractDateTimeMathematician : public AtomicMathematician
    {
    public:
        virtual Item calculate(const Item &o1,
                               const Operator op,
                               const Item &o2,
                               const QExplicitlySharedDataPointer<DynamicContext> &context) const;
    };
}

QT_END_NAMESPACE

QT_END_HEADER

#endif