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46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef Patternist_AtomicMathematicians_H
53 #define Patternist_AtomicMathematicians_H
55 #include <private/qatomicmathematician_p.h>
56 #include <private/qsourcelocationreflection_p.h>
60 * @short Contains classes performing arithemetic operations between atomic values, such as
61 * subtracting two dates.
72 * @ingroup Patternist_xdm
73 * @author Frans Englich <frans.englich@nokia.com>
75 class DecimalMathematician : public AtomicMathematician
76 , public DelegatingSourceLocationReflection
79 inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
83 virtual Item calculate(const Item &o1,
86 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
90 * @short Performs arithmetics between Integer values.
92 * @ingroup Patternist_xdm
93 * @author Frans Englich <frans.englich@nokia.com>
95 class IntegerMathematician : public AtomicMathematician
96 , public DelegatingSourceLocationReflection
99 inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
103 virtual Item calculate(const Item &o1,
106 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
110 * @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration
113 * @ingroup Patternist_xdm
114 * @author Frans Englich <frans.englich@nokia.com>
116 class DurationNumericMathematician : public AtomicMathematician
117 , public DelegatingSourceLocationReflection
120 inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
124 virtual Item calculate(const Item &o1,
127 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
131 * @short Performs division between DayTimeDuration and DayTimeDuration, or
132 * YearMonthDuration and YearMonthDuration.
134 * @ingroup Patternist_xdm
135 * @author Frans Englich <frans.englich@nokia.com>
137 class DurationDurationDivisor : public AtomicMathematician
140 virtual Item calculate(const Item &o1,
143 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
147 * @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or
148 * YearMonthDuration and YearMonthDuration.
150 * @ingroup Patternist_xdm
151 * @author Frans Englich <frans.englich@nokia.com>
153 class DurationDurationMathematician : public AtomicMathematician
156 virtual Item calculate(const Item &o1,
159 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
163 * @short Delegates an AtomicMathematician and switches its operands.
165 * Switches the operands of the call to a call to the calculate()
166 * on an AtomicMathematician such that the left operand becomes the right, and
169 * Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician
170 * should act as as a middle-man for, having the role of switching the two operands. Thus,
171 * OperandSwitcherMathematician can be described as a proxy or delegator class.
173 * This class is used for implementing operator combinations such as
174 * <tt>numeric * xs:yearMonthDuration</tt> and
175 * <tt>xs:yearMonthDuration * numeric</tt>.
177 * @ingroup Patternist_xdm
178 * @author Frans Englich <frans.englich@nokia.com>
180 class OperandSwitcherMathematician : public AtomicMathematician
184 * Creates an OperandSwitcherMathematician.
186 * @param mathematician the AtomicMathematician this OperandSwitcherMathematician
187 * should switch the operands for. Must be a non @c null, valid pointer.
189 OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician);
192 * Switch @p o1 and @p o2, and returns the value from the AtomicMathematician
193 * this OperandSwitcherMathematician represents.
195 virtual Item calculate(const Item &o1,
198 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
200 const AtomicMathematician::Ptr m_mather;
204 * @short Performs arithmetics between an AbstractDateTime value and
205 * an AbstractDuration value.
207 * @ingroup Patternist_xdm
208 * @author Frans Englich <frans.englich@nokia.com>
210 class DateTimeDurationMathematician : public AtomicMathematician
211 , public DelegatingSourceLocationReflection
215 inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r)
220 * @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration.
223 virtual Item calculate(const Item &o1,
226 const QExplicitlySharedDataPointer<DynamicContext> &context) const;
230 * @short Performs arithmetics between two AbstractDateTime values.
232 * @ingroup Patternist_xdm
233 * @author Frans Englich <frans.englich@nokia.com>
235 class AbstractDateTimeMathematician : public AtomicMathematician
238 virtual Item calculate(const Item &o1,
241 const QExplicitlySharedDataPointer<DynamicContext> &context) const;