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1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Type-safe unique id template |
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15 * |
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16 */ |
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17 |
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18 |
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19 |
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20 #include "glxpanic.h" |
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21 |
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22 const TUint KGlxInvalidIdValue = KMaxTUint; |
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23 |
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24 // ----------------------------------------------------------------------------- |
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25 // Default constructor |
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26 // ----------------------------------------------------------------------------- |
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27 // |
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28 template <class T> |
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29 inline TGlxId<T>::TGlxId() |
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30 { |
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31 iIdValue = KGlxInvalidIdValue; |
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32 } |
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33 |
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34 // ----------------------------------------------------------------------------- |
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35 // Constructor |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 template <class T> |
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39 inline TGlxId<T>::TGlxId(const TGlxId<T>& aId) |
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40 { |
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41 iIdValue = aId.iIdValue; |
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42 } |
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43 |
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44 // ----------------------------------------------------------------------------- |
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45 // Constructor |
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46 // ----------------------------------------------------------------------------- |
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47 // |
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48 template <class T> |
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49 inline TGlxId<T>::TGlxId(TUint aIdValue) |
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50 { |
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51 __ASSERT_DEBUG(aIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); |
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52 iIdValue = aIdValue; |
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53 } |
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54 |
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55 // ----------------------------------------------------------------------------- |
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56 // Constructor |
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57 // ----------------------------------------------------------------------------- |
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58 // |
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59 template <class T> |
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60 inline TGlxId<T>::TGlxId(const TGlxIdNone&) |
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61 { |
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62 iIdValue = KGlxInvalidIdValue; |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // Assignment, checks for invalid value |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 template <class T> |
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70 inline TGlxId<T>& TGlxId<T>::operator=(const TGlxId<T>& aId) |
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71 { |
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72 __ASSERT_DEBUG(aId.iIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); // Use SetValue to set undefined value |
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73 iIdValue = aId.iIdValue; |
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74 return *this; |
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75 } |
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76 |
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77 // ----------------------------------------------------------------------------- |
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78 // Assignment, checks for invalid value |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 template <class T> |
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82 inline TGlxId<T>& TGlxId<T>::operator=(TUint aIdValue) |
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83 { |
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84 __ASSERT_DEBUG(aIdValue != KGlxInvalidIdValue, Panic(EGlxPanicIllegalArgument)); |
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85 iIdValue = aIdValue; |
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86 return *this; |
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87 } |
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88 |
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89 // ----------------------------------------------------------------------------- |
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90 // Assignment |
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91 // ----------------------------------------------------------------------------- |
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92 // |
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93 template <class T> |
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94 inline TGlxId<T>& TGlxId<T>::operator=(const TGlxIdNone&) |
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95 { |
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96 iIdValue = KGlxInvalidIdValue; |
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97 return *this; |
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98 } |
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99 |
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100 // ----------------------------------------------------------------------------- |
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101 // Post-increment |
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102 // ----------------------------------------------------------------------------- |
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103 // |
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104 template <class T> |
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105 inline TGlxId<T> TGlxId<T>::operator++(int) |
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106 { |
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107 TUint value = iIdValue; |
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108 iIdValue++; |
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109 return TGlxId<T>(value); |
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110 } |
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111 |
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112 // ----------------------------------------------------------------------------- |
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113 // Comparison |
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114 // ----------------------------------------------------------------------------- |
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115 // |
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116 template <class T> |
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117 inline TBool TGlxId<T>::operator!=(const TGlxId<T>& aId) const |
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118 { |
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119 return iIdValue != aId.iIdValue; |
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120 } |
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121 |
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122 // ----------------------------------------------------------------------------- |
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123 // Comparison |
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124 // ----------------------------------------------------------------------------- |
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125 // |
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126 template <class T> |
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127 inline TBool TGlxId<T>::operator==(const TGlxId<T>& aId) const |
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128 { |
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129 return iIdValue == aId.iIdValue; |
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130 } |
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131 |
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132 // ----------------------------------------------------------------------------- |
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133 // Comparison |
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134 // ----------------------------------------------------------------------------- |
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135 // |
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136 template <class T> |
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137 inline TBool TGlxId<T>::operator!=(const TGlxIdNone&) const |
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138 { |
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139 return iIdValue != KGlxInvalidIdValue; |
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140 } |
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141 |
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142 // ----------------------------------------------------------------------------- |
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143 // Comparison |
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144 // ----------------------------------------------------------------------------- |
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145 // |
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146 template <class T> |
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147 inline TBool TGlxId<T>::operator==(const TGlxIdNone&) const |
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148 { |
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149 return iIdValue == KGlxInvalidIdValue; |
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150 } |
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151 |
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152 // ----------------------------------------------------------------------------- |
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153 // Comparison |
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154 // ----------------------------------------------------------------------------- |
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155 // |
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156 template <class T> |
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157 inline TBool TGlxId<T>::operator>(const TGlxId<T>& aId) const |
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158 { |
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159 return iIdValue > aId.iIdValue; |
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160 } |
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161 |
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162 // ----------------------------------------------------------------------------- |
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163 // Comparison |
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164 // ----------------------------------------------------------------------------- |
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165 // |
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166 template <class T> |
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167 inline TBool TGlxId<T>::operator<(const TGlxId<T>& aId) const |
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168 { |
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169 return iIdValue < aId.iIdValue; |
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170 } |
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171 |
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172 // ----------------------------------------------------------------------------- |
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173 // Returns current value |
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174 // ----------------------------------------------------------------------------- |
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175 // |
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176 template <class T> |
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177 inline TUint TGlxId<T>::Value() const |
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178 { |
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179 return iIdValue; |
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180 } |
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181 |
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182 // ----------------------------------------------------------------------------- |
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183 // Allows setting undefined as value |
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184 // ----------------------------------------------------------------------------- |
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185 // |
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186 template <class T> |
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187 inline void TGlxId<T>::SetValue(TUint aIdValue) |
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188 { |
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189 iIdValue = aIdValue; |
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190 } |
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191 |
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192 /** |
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193 * TGlxDefaultIdProvider |
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194 * Simple implementation of id provider |
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195 */ |
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196 // ----------------------------------------------------------------------------- |
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197 // Allows setting undefined as value |
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198 // ----------------------------------------------------------------------------- |
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199 // |
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200 template <class T> |
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201 TGlxDefaultIdProvider<T>::TGlxDefaultIdProvider() |
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202 { |
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203 iNextIdValue = 0; |
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204 } |
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205 |
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206 // ----------------------------------------------------------------------------- |
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207 // Allows setting undefined as value |
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208 // ----------------------------------------------------------------------------- |
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209 // |
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210 template <class T> |
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211 void TGlxDefaultIdProvider<T>::NextId(T& aId) |
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212 { |
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213 aId = iNextIdValue++; |
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214 } |
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215 |