src/xmlpatterns/data/qatomicmathematicians_p.h
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/data/qatomicmathematicians_p.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,249 @@
+/****************************************************************************
+**
+** 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_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