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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 // |
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43 // W A R N I N G |
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44 // ------------- |
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45 // |
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46 // This file is not part of the Qt API. It exists purely as an |
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47 // implementation detail. This header file may change from version to |
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48 // version without notice, or even be removed. |
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49 // |
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50 // We mean it. |
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51 |
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52 #ifndef Patternist_AtomicMathematicians_H |
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53 #define Patternist_AtomicMathematicians_H |
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54 |
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55 #include "qatomicmathematician_p.h" |
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56 #include "qsourcelocationreflection_p.h" |
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57 |
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58 /** |
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59 * @file |
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60 * @short Contains classes performing arithemetic operations between atomic values, such as |
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61 * subtracting two dates. |
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62 */ |
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63 |
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64 QT_BEGIN_HEADER |
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65 |
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66 QT_BEGIN_NAMESPACE |
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67 |
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68 namespace QPatternist |
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69 { |
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70 /** |
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71 * |
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72 * @ingroup Patternist_xdm |
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73 * @author Frans Englich <frans.englich@nokia.com> |
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74 */ |
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75 class DecimalMathematician : public AtomicMathematician |
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76 , public DelegatingSourceLocationReflection |
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77 { |
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78 public: |
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79 inline DecimalMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r) |
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80 { |
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81 } |
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82 |
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83 virtual Item calculate(const Item &o1, |
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84 const Operator op, |
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85 const Item &o2, |
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86 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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87 }; |
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88 |
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89 /** |
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90 * @short Performs arithmetics between Integer values. |
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91 * |
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92 * @ingroup Patternist_xdm |
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93 * @author Frans Englich <frans.englich@nokia.com> |
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94 */ |
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95 class IntegerMathematician : public AtomicMathematician |
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96 , public DelegatingSourceLocationReflection |
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97 { |
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98 public: |
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99 inline IntegerMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r) |
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100 { |
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101 } |
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102 |
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103 virtual Item calculate(const Item &o1, |
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104 const Operator op, |
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105 const Item &o2, |
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106 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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107 }; |
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108 |
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109 /** |
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110 * @short Performs division or multiplication between either DayTimeDuration or YearMonthDuration |
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111 * and Double values. |
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112 * |
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113 * @ingroup Patternist_xdm |
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114 * @author Frans Englich <frans.englich@nokia.com> |
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115 */ |
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116 class DurationNumericMathematician : public AtomicMathematician |
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117 , public DelegatingSourceLocationReflection |
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118 { |
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119 public: |
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120 inline DurationNumericMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r) |
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121 { |
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122 } |
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123 |
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124 virtual Item calculate(const Item &o1, |
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125 const Operator op, |
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126 const Item &o2, |
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127 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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128 }; |
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129 |
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130 /** |
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131 * @short Performs division between DayTimeDuration and DayTimeDuration, or |
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132 * YearMonthDuration and YearMonthDuration. |
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133 * |
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134 * @ingroup Patternist_xdm |
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135 * @author Frans Englich <frans.englich@nokia.com> |
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136 */ |
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137 class DurationDurationDivisor : public AtomicMathematician |
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138 { |
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139 public: |
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140 virtual Item calculate(const Item &o1, |
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141 const Operator op, |
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142 const Item &o2, |
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143 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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144 }; |
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145 |
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146 /** |
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147 * @short Performs arithmetics between DayTimeDuration and DayTimeDuration, or |
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148 * YearMonthDuration and YearMonthDuration. |
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149 * |
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150 * @ingroup Patternist_xdm |
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151 * @author Frans Englich <frans.englich@nokia.com> |
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152 */ |
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153 class DurationDurationMathematician : public AtomicMathematician |
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154 { |
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155 public: |
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156 virtual Item calculate(const Item &o1, |
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157 const Operator op, |
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158 const Item &o2, |
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159 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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160 }; |
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161 |
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162 /** |
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163 * @short Delegates an AtomicMathematician and switches its operands. |
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164 * |
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165 * Switches the operands of the call to a call to the calculate() |
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166 * on an AtomicMathematician such that the left operand becomes the right, and |
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167 * vice versa. |
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168 * |
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169 * Its constructor takes an AtomicMathematician instance which this OperandSwitcherMathematician |
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170 * should act as as a middle-man for, having the role of switching the two operands. Thus, |
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171 * OperandSwitcherMathematician can be described as a proxy or delegator class. |
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172 * |
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173 * This class is used for implementing operator combinations such as |
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174 * <tt>numeric * xs:yearMonthDuration</tt> and |
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175 * <tt>xs:yearMonthDuration * numeric</tt>. |
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176 * |
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177 * @ingroup Patternist_xdm |
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178 * @author Frans Englich <frans.englich@nokia.com> |
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179 */ |
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180 class OperandSwitcherMathematician : public AtomicMathematician |
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181 { |
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182 public: |
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183 /** |
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184 * Creates an OperandSwitcherMathematician. |
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185 * |
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186 * @param mathematician the AtomicMathematician this OperandSwitcherMathematician |
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187 * should switch the operands for. Must be a non @c null, valid pointer. |
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188 */ |
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189 OperandSwitcherMathematician(const AtomicMathematician::Ptr &mathematician); |
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190 |
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191 /** |
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192 * Switch @p o1 and @p o2, and returns the value from the AtomicMathematician |
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193 * this OperandSwitcherMathematician represents. |
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194 */ |
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195 virtual Item calculate(const Item &o1, |
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196 const Operator op, |
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197 const Item &o2, |
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198 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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199 private: |
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200 const AtomicMathematician::Ptr m_mather; |
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201 }; |
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202 |
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203 /** |
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204 * @short Performs arithmetics between an AbstractDateTime value and |
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205 * an AbstractDuration value. |
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206 * |
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207 * @ingroup Patternist_xdm |
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208 * @author Frans Englich <frans.englich@nokia.com> |
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209 */ |
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210 class DateTimeDurationMathematician : public AtomicMathematician |
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211 , public DelegatingSourceLocationReflection |
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212 { |
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213 public: |
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214 |
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215 inline DateTimeDurationMathematician(const SourceLocationReflection *const r) : DelegatingSourceLocationReflection(r) |
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216 { |
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217 } |
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218 |
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219 /** |
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220 * @p o1 is an AbstractDateTime and @p o2 is an AbstractDuration. |
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221 * |
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222 */ |
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223 virtual Item calculate(const Item &o1, |
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224 const Operator op, |
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225 const Item &o2, |
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226 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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227 }; |
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228 |
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229 /** |
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230 * @short Performs arithmetics between two AbstractDateTime values. |
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231 * |
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232 * @ingroup Patternist_xdm |
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233 * @author Frans Englich <frans.englich@nokia.com> |
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234 */ |
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235 class AbstractDateTimeMathematician : public AtomicMathematician |
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236 { |
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237 public: |
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238 virtual Item calculate(const Item &o1, |
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239 const Operator op, |
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240 const Item &o2, |
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241 const QExplicitlySharedDataPointer<DynamicContext> &context) const; |
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242 }; |
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243 } |
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244 |
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245 QT_END_NAMESPACE |
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246 |
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247 QT_END_HEADER |
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248 |
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249 #endif |