annotate trunk/src/dil/semantic/Symbols.d @ 747:00f872d949ea

Added method scanCommentText() to DDocEmitter. Added method writeParams() and scanCodeSection(). Added method scanMacro() to MacroParser. Made fixes and improvements to the MacroExpander. Applied other minor fixes.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Mon, 11 Feb 2008 03:15:45 +0100
parents efa5fcb9aa14
children f4b9680c0e16
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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.semantic.Symbols;
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6
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7 import dil.ast.Expression;
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8 import dil.semantic.Symbol;
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9 import dil.semantic.SymbolTable;
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10 import dil.semantic.Types;
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11 import dil.ast.Node;
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12 import dil.lexer.Identifier;
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13 import dil.Enums;
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14 import common;
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16 /// A symbol that has its own scope with a symbol table.
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17 class ScopeSymbol : Symbol
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18 {
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19 SymbolTable symbolTable; /// The symbol table.
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20 Symbol[] members; /// The member symbols (in lexical order.)
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22 this(SYM sid, Identifier* name, Node node)
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23 {
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24 super(sid, name, node);
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25 }
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26
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27 /// Look up name in the table.
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28 Symbol lookup(Identifier* name)
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29 {
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30 return symbolTable.lookup(name);
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31 }
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32
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33 /// Insert a symbol into the table.
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34 void insert(Symbol s, Identifier* name)
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35 {
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36 symbolTable.insert(s, name);
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37 members ~= s;
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38 }
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39 }
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41 /// Aggregates have function and field members.
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42 abstract class Aggregate : ScopeSymbol
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43 {
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44 Function[] funcs;
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45 Variable[] fields;
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47 this(SYM sid, Identifier* name, Node node)
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48 {
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49 super(sid, name, node);
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50 }
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51
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52 override void insert(Symbol s, Identifier* ident)
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53 {
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54 if (s.isVariable)
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55 // Append variable to fields.
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56 fields ~= cast(Variable)cast(void*)s;
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57 else if (s.isFunction)
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58 // Append function to funcs.
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59 funcs ~= cast(Function)cast(void*)s;
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60 super.insert(s, ident);
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61 }
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62 }
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63
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64 class Class : Aggregate
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65 {
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66 this(Identifier* name, Node classNode)
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67 {
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68 super(SYM.Class, name, classNode);
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69 }
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70 }
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71
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72 class Interface : Aggregate
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73 {
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74 this(Identifier* name, Node interfaceNode)
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75 {
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76 super(SYM.Interface, name, interfaceNode);
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77 }
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78 }
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79
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80 class Union : Aggregate
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81 {
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82 this(Identifier* name, Node unionNode)
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83 {
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84 super(SYM.Union, name, unionNode);
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85 }
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86 }
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87
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88 class Struct : Aggregate
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89 {
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90 this(Identifier* name, Node structNode)
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91 {
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92 super(SYM.Struct, name, structNode);
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93 }
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94 }
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95
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96 class Enum : ScopeSymbol
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97 {
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98 TypeEnum type;
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99 this(Identifier* name, Node enumNode)
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100 {
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101 super(SYM.Enum, name, enumNode);
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102 }
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103
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104 void setType(TypeEnum type)
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105 {
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106 this.type = type;
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107 }
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108 }
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109
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110 class Template : ScopeSymbol
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111 {
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112 this(Identifier* name, Node templateNode)
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113 {
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114 super(SYM.Template, name, templateNode);
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115 }
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116 }
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117
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118 class Function : ScopeSymbol
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119 {
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120 Protection prot; /// The protection.
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121 StorageClass stc; /// The storage classes.
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122 LinkageType linkType; /// The linkage type.
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123
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124 Type returnType;
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125 Variable[] params;
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126
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127 this(Identifier* name, Node functionNode)
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128 {
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129 super(SYM.Function, name, functionNode);
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130 }
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131 }
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132
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133 class Variable : Symbol
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134 {
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135 Protection prot; /// The protection.
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136 StorageClass stc; /// The storage classes.
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137 LinkageType linkType; /// The linkage type.
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138
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139 Type type; /// The type of this variable.
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140 Expression value; /// The value of this variable.
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141
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142 this(Identifier* name,
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143 Protection prot, StorageClass stc, LinkageType linkType,
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144 Node variableNode)
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145 {
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146 super(SYM.Variable, name, variableNode);
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147
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148 this.prot = prot;
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149 this.stc = stc;
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150 this.linkType = linkType;
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151 }
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152 }
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153
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154 class EnumMember : Variable
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155 {
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156 this(Identifier* name,
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157 Protection prot, StorageClass stc, LinkageType linkType,
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158 Node enumMemberNode)
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159 {
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160 super(name, prot, stc, linkType, enumMemberNode);
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161 this.sid = SYM.EnumMember;
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162 }
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163 }
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164
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165 class Alias : Symbol
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166 {
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167 this(Identifier* name, Node aliasNode)
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168 {
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169 super(SYM.Alias, name, aliasNode);
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170 }
517
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171 }
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172
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173 /++
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174 A list of symbols that share the same identifier.
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175 These can be functions, templates and aggregates with template parameter lists.
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176 +/
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177 class OverloadSet : Symbol
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178 {
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179 Symbol[] symbols;
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180
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181 this(Identifier* name, Node node)
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182 {
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183 super(SYM.OverloadSet, name, node);
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184 }
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185
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186 void add(Symbol s)
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187 {
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188 symbols ~= s;
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189 }
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190 }