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annotate trunk/src/dil/ast/Parameters.d @ 786:3b34f6a95a27

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Added and revised documenation comments.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Sun, 24 Feb 2008 02:41:11 +0100
parents 00f872d949ea
children 5fe89bb8cbdd
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87f09469d337 Moved class Parameter/s to module dil.ast.Parameter.
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1 /++
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2 Author: Aziz Köksal
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3 License: GPL3
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4 +/
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5 module dil.ast.Parameters;
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6
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7 import dil.ast.Node;
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8 import dil.ast.Type;
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9 import dil.ast.Expression;
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10 import dil.lexer.Identifier;
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11 import dil.Enums;
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12
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13 /// A function or foreach parameter.
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14 class Parameter : Node
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15 {
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16 StorageClass stc; /// The storage classes of the parameter.
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17 TypeNode type; /// The parameter's type.
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18 Identifier* name; /// The name of the parameter.
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19 Expression defValue; /// The default initialization value.
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20
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21 this(StorageClass stc, TypeNode type, Identifier* name, Expression defValue)
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22 {
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23 super(NodeCategory.Other);
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24 mixin(set_kind);
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25 // type can be null when param in foreach statement
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26 addOptChild(type);
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27 addOptChild(defValue);
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28
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29 this.stc = stc;
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30 this.type = type;
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31 this.name = name;
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32 this.defValue = defValue;
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33 }
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34
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35 /// Returns true if this is a D-style variadic parameter.
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36 /// E.g.: func(int[] values ...)
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37 bool isDVariadic()
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38 {
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39 return isVariadic && !isCVariadic;
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40 }
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41
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42 /// Returns true if this is a C-style variadic parameter.
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43 /// E.g.: func(...)
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44 bool isCVariadic()
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45 {
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46 return stc == StorageClass.Variadic &&
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47 type is null && name is null;
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48 }
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49
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50 /// Returns true if this is a D- or C-style variadic parameter.
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51 bool isVariadic()
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52 {
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53 return !!(stc & StorageClass.Variadic);
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54 }
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55 }
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56
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57 /// Array of parameters.
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58 class Parameters : Node
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59 {
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60 this()
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61 {
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62 super(NodeCategory.Other);
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63 mixin(set_kind);
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64 }
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65
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66 bool hasVariadic()
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67 {
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68 if (children.length != 0)
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69 return items[$-1].isVariadic();
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70 return false;
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71 }
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72
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73 void opCatAssign(Parameter param)
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74 { addChild(param); }
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75
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76 Parameter[] items()
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77 { return cast(Parameter[])children; }
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78
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79 size_t length()
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80 { return children.length; }
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81 }
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82
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83 /*~~~~~~~~~~~~~~~~~~~~~~
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84 ~ Template parameters: ~
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85 ~~~~~~~~~~~~~~~~~~~~~~*/
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86
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87 /// Abstract base class for all template parameters.
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88 abstract class TemplateParameter : Node
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89 {
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90 Identifier* ident;
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91 this(Identifier* ident)
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92 {
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93 super(NodeCategory.Other);
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94 this.ident = ident;
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95 }
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96 }
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97
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98 /// E.g.: (alias T)
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99 class TemplateAliasParameter : TemplateParameter
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100 {
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101 TypeNode specType, defType;
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102 this(Identifier* ident, TypeNode specType, TypeNode defType)
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103 {
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104 super(ident);
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105 mixin(set_kind);
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106 addOptChild(specType);
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107 addOptChild(defType);
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108 this.ident = ident;
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109 this.specType = specType;
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110 this.defType = defType;
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111 }
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112 }
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113
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114 /// E.g.: (T t)
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115 class TemplateTypeParameter : TemplateParameter
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116 {
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117 TypeNode specType, defType;
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118 this(Identifier* ident, TypeNode specType, TypeNode defType)
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119 {
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120 super(ident);
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121 mixin(set_kind);
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122 addOptChild(specType);
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123 addOptChild(defType);
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124 this.ident = ident;
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125 this.specType = specType;
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126 this.defType = defType;
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127 }
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128 }
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129
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130 // version(D2)
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131 // {
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132 /// E.g.: (this T)
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133 class TemplateThisParameter : TemplateParameter
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134 {
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135 TypeNode specType, defType;
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136 this(Identifier* ident, TypeNode specType, TypeNode defType)
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137 {
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138 super(ident);
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139 mixin(set_kind);
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140 addOptChild(specType);
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141 addOptChild(defType);
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142 this.ident = ident;
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143 this.specType = specType;
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144 this.defType = defType;
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145 }
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146 }
635
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147 // }
605
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148
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149 /// E.g.: (T)
605
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150 class TemplateValueParameter : TemplateParameter
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151 {
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152 TypeNode valueType;
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153 Expression specValue, defValue;
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154 this(TypeNode valueType, Identifier* ident, Expression specValue, Expression defValue)
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155 {
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156 super(ident);
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157 mixin(set_kind);
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158 addChild(valueType);
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159 addOptChild(specValue);
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160 addOptChild(defValue);
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161 this.valueType = valueType;
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162 this.ident = ident;
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163 this.specValue = specValue;
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164 this.defValue = defValue;
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165 }
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166 }
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167
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168 /// E.g.: (T...)
605
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169 class TemplateTupleParameter : TemplateParameter
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170 {
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171 this(Identifier* ident)
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172 {
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173 super(ident);
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174 mixin(set_kind);
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175 this.ident = ident;
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176 }
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177 }
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178
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179 /// Array of template parameters.
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180 class TemplateParameters : Node
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181 {
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182 this()
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183 {
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184 super(NodeCategory.Other);
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185 mixin(set_kind);
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186 }
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187
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188 void opCatAssign(TemplateParameter parameter)
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189 {
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190 addChild(parameter);
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191 }
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192
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193 TemplateParameter[] items()
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194 {
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195 return cast(TemplateParameter[])children;
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196 }
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197 }
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198
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199 /// Array of template arguments.
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200 class TemplateArguments : Node
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201 {
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202 this()
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203 {
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204 super(NodeCategory.Other);
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205 mixin(set_kind);
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206 }
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207
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208 void opCatAssign(Node argument)
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209 {
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210 addChild(argument);
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211 }
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212 }