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annotate src/dil/semantic/Pass2.d @ 821:09a64d96967a

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Started the interpreter. Made a couple changes in other parts -- CharExpression now has an IntExpression of a character type as its value member and its type is set accordingly.
author Jarrett Billingsley <jarrett.billingsley@gmail.com>
date Fri, 14 Mar 2008 11:01:05 -0400
parents 525ee3f848d9
children fd52beaaa94a
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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.Pass2;
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6
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7 import dil.ast.DefaultVisitor;
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8 import dil.ast.Node,
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9 dil.ast.Declarations,
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10 dil.ast.Expressions,
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11 dil.ast.Statements,
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12 dil.ast.Types,
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13 dil.ast.Parameters;
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14 import dil.lexer.Identifier;
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15 import dil.semantic.Symbol,
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16 dil.semantic.Symbols,
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17 dil.semantic.Types,
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18 dil.semantic.Scope,
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19 dil.semantic.Module,
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20 dil.semantic.Analysis,
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21 dil.semantic.Interpreter;
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22 import dil.parser.Parser;
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23 import dil.SourceText;
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24 import dil.Location;
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25 import dil.Information;
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26 import dil.Messages;
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27 import dil.Enums;
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28 import dil.CompilerInfo;
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29 import common;
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30
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31 /// The second pass determines the types of symbols and the types
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32 /// of expressions and also evaluates them.
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33 class SemanticPass2 : DefaultVisitor
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34 {
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35 Scope scop; /// The current scope.
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36 Module modul; /// The module to be semantically checked.
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37
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38 /// Constructs a SemanticPass2 object.
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39 /// Params:
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40 /// modul = the module to be checked.
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41 this(Module modul)
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42 {
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43 this.modul = modul;
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44 }
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45
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46 /// Start semantic analysis.
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47 void run()
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48 {
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49 assert(modul.root !is null);
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50 // Create module scope.
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51 scop = new Scope(null, modul);
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52 modul.semanticPass = 2;
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53 visit(modul.root);
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54 }
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55
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56 /// Enters a new scope.
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57 void enterScope(ScopeSymbol s)
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58 {
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59 scop = scop.enter(s);
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60 }
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61
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62 /// Exits the current scope.
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63 void exitScope()
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64 {
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65 scop = scop.exit();
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66 }
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67
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68 /// Evaluates e and returns the result.
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69 Expression interpret(Expression e)
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70 {
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71 return Interpreter.interpret(e, modul.infoMan/+, scop+/);
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72 }
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73
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74 /// Creates an error report.
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75 void error(Token* token, char[] formatMsg, ...)
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76 {
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77 auto location = token.getErrorLocation();
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78 auto msg = Format(_arguments, _argptr, formatMsg);
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79 modul.infoMan ~= new SemanticError(location, msg);
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80 }
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81
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82 /// Some handy aliases.
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83 private alias Declaration D;
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84 private alias Expression E; /// ditto
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85 private alias Statement S; /// ditto
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86 private alias TypeNode T; /// ditto
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87
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88 /// The current scope symbol to use for looking up identifiers.
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89 /// E.g.:
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90 /// ---
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91 /// object.method(); // *) object is looked up in the current scope.
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92 /// // *) idScope is set if object is a ScopeSymbol.
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93 /// // *) method will be looked up in idScope.
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94 /// dil.ast.Node.Node node; // A fully qualified type.
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95 /// ---
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96 ScopeSymbol idScope;
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97
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98 /// Searches for a symbol.
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99 Symbol search(Token* idTok)
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100 {
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101 assert(idTok.kind == TOK.Identifier);
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102 auto id = idTok.ident;
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103 Symbol symbol;
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104
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105 if (idScope is null)
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106 for (auto sc = scop; sc; sc = sc.parent)
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107 {
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108 symbol = sc.lookup(id);
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109 if (symbol)
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110 return symbol;
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111 }
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112 else
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113 symbol = idScope.lookup(id);
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114
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115 if (symbol is null)
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116 error(idTok, MSG.UndefinedIdentifier, id.str);
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117 else if (auto scopSymbol = cast(ScopeSymbol)symbol)
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118 idScope = scopSymbol;
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119
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120 return symbol;
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121 }
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122
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123 override
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124 {
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125 D visit(CompoundDeclaration d)
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126 {
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127 return super.visit(d);
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128 }
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129
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130 D visit(EnumDeclaration d)
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131 {
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132 d.symbol.setCompleting();
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133
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134 Type type = Types.Int; // Default to int.
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135 if (d.baseType)
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136 type = visitT(d.baseType).type;
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137 d.symbol.type = new TypeEnum(d.symbol, type);
711
4f971f6382c7 Added enum Status to class Symbol.
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138
707
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diff changeset
139 enterScope(d.symbol);
711
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140
707
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141 foreach (member; d.members)
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142 {
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143 Expression finalValue;
711
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144 member.symbol.setCompleting();
707
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145 if (member.value)
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146 {
efa5fcb9aa14 Added semantic code related to enums.
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147 member.value = visitE(member.value);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
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148 finalValue = interpret(member.value);
707
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diff changeset
149 if (finalValue is Interpreter.NAR)
711
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diff changeset
150 finalValue = new IntExpression(0, d.symbol.type);
707
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151 }
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152 //else
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153 // TODO: increment a number variable and assign that to value.
711
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154 member.symbol.type = d.symbol.type; // Assign TypeEnum.
707
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diff changeset
155 member.symbol.value = finalValue;
711
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diff changeset
156 member.symbol.setComplete();
707
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diff changeset
157 }
711
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158
707
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159 exitScope();
711
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Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
160 d.symbol.setComplete();
707
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161 return d;
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162 }
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163
684
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164 D visit(MixinDeclaration md)
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165 {
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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diff changeset
166 if (md.decls)
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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167 return md.decls;
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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diff changeset
168 if (md.isMixinExpression)
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169 {
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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diff changeset
170 md.argument = visitE(md.argument);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
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171 auto expr = interpret(md.argument);
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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172 if (expr is Interpreter.NAR)
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173 return md;
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
174 auto stringExpr = expr.Is!(StringExpression);
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
175 if (stringExpr is null)
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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diff changeset
176 {
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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diff changeset
177 error(md.begin, MSG.MixinArgumentMustBeString);
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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178 return md;
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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179 }
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
180 else
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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181 { // Parse the declarations in the string.
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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182 auto loc = md.begin.getErrorLocation();
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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183 auto filePath = loc.filePath;
755
90668b83ae5e Introduced new module dil.SourceText and class SourceText.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 711
diff changeset
184 auto sourceText = new SourceText(filePath, stringExpr.getString());
90668b83ae5e Introduced new module dil.SourceText and class SourceText.
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diff changeset
185 auto parser = new Parser(sourceText, modul.infoMan);
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
186 md.decls = parser.start();
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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187 }
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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188 }
684
10b314bf37e3 Added module dil.semantic.Pass2.
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189 else
10b314bf37e3 Added module dil.semantic.Pass2.
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190 {
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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191 // TODO: implement template mixin.
684
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192 }
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
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193 return md.decls;
684
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194 }
10b314bf37e3 Added module dil.semantic.Pass2.
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195
804
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196 // Type nodes:
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197
694
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
198 T visit(TypeofType t)
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diff changeset
199 {
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diff changeset
200 t.e = visitE(t.e);
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
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201 t.type = t.e.type;
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202 return t;
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203 }
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204
692
d33895f679eb Tidied up the class Scope a bit.
Aziz K?ksal <aziz.koeksal@gmail.com>
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205 T visit(ArrayType t)
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206 {
804
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207 auto baseType = visitT(t.next).type;
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208 if (t.isAssociative)
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diff changeset
209 t.type = baseType.arrayOf(visitT(t.assocType).type);
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210 else if (t.isDynamic)
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diff changeset
211 t.type = baseType.arrayOf();
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diff changeset
212 else if (t.isStatic)
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diff changeset
213 {}
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diff changeset
214 else
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diff changeset
215 assert(t.isSlice);
692
d33895f679eb Tidied up the class Scope a bit.
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diff changeset
216 return t;
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diff changeset
217 }
d33895f679eb Tidied up the class Scope a bit.
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diff changeset
218
684
10b314bf37e3 Added module dil.semantic.Pass2.
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diff changeset
219 T visit(PointerType t)
10b314bf37e3 Added module dil.semantic.Pass2.
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220 {
10b314bf37e3 Added module dil.semantic.Pass2.
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diff changeset
221 t.type = visitT(t.next).type.ptrTo();
10b314bf37e3 Added module dil.semantic.Pass2.
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222 return t;
10b314bf37e3 Added module dil.semantic.Pass2.
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223 }
10b314bf37e3 Added module dil.semantic.Pass2.
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224
804
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diff changeset
225 T visit(QualifiedType t)
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diff changeset
226 {
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parents: 798
diff changeset
227 if (t.lhs.Is!(QualifiedType) is null)
9e6c6bb73e5f Implemented visit methods for some type nodes.
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diff changeset
228 idScope = null; // Reset at left-most type.
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diff changeset
229 visitT(t.lhs);
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parents: 798
diff changeset
230 visitT(t.rhs);
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diff changeset
231 t.type = t.rhs.type;
9e6c6bb73e5f Implemented visit methods for some type nodes.
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diff changeset
232 return t;
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diff changeset
233 }
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parents: 798
diff changeset
234
9e6c6bb73e5f Implemented visit methods for some type nodes.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
235 T visit(IdentifierType t)
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Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
236 {
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diff changeset
237 auto idToken = t.begin;
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diff changeset
238 auto symbol = search(idToken);
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diff changeset
239 // TODO: save symbol or its type in t.
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diff changeset
240 return t;
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parents: 798
diff changeset
241 }
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Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
242
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Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
243 T visit(TemplateInstanceType t)
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Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
244 {
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diff changeset
245 auto idToken = t.begin;
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parents: 798
diff changeset
246 auto symbol = search(idToken);
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diff changeset
247 // TODO: save symbol or its type in t.
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diff changeset
248 return t;
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diff changeset
249 }
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diff changeset
250
9e6c6bb73e5f Implemented visit methods for some type nodes.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
251 T visit(ModuleScopeType t)
9e6c6bb73e5f Implemented visit methods for some type nodes.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
252 {
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diff changeset
253 idScope = modul;
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diff changeset
254 return t;
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diff changeset
255 }
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parents: 798
diff changeset
256
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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diff changeset
257 T visit(IntegralType t)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
258 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
259 // A table mapping the kind of a token to its corresponding semantic Type.
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
260 TypeBasic[TOK] tok2Type = [
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
261 TOK.Char : Types.Char, TOK.Wchar : Types.Wchar, TOK.Dchar : Types.Dchar, TOK.Bool : Types.Bool,
10b314bf37e3 Added module dil.semantic.Pass2.
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diff changeset
262 TOK.Byte : Types.Byte, TOK.Ubyte : Types.Ubyte, TOK.Short : Types.Short, TOK.Ushort : Types.Ushort,
10b314bf37e3 Added module dil.semantic.Pass2.
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diff changeset
263 TOK.Int : Types.Int, TOK.Uint : Types.Uint, TOK.Long : Types.Long, TOK.Ulong : Types.Ulong,
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
264 TOK.Cent : Types.Cent, TOK.Ucent : Types.Ucent,
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
265 TOK.Float : Types.Float, TOK.Double : Types.Double, TOK.Real : Types.Real,
10b314bf37e3 Added module dil.semantic.Pass2.
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diff changeset
266 TOK.Ifloat : Types.Ifloat, TOK.Idouble : Types.Idouble, TOK.Ireal : Types.Ireal,
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
267 TOK.Cfloat : Types.Cfloat, TOK.Cdouble : Types.Cdouble, TOK.Creal : Types.Creal, TOK.Void : Types.Void
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
268 ];
694
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
269 assert(t.tok in tok2Type);
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
270 t.type = tok2Type[t.tok];
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
271 return t;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
272 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
273
804
9e6c6bb73e5f Implemented visit methods for some type nodes.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
274 // Expression nodes:
9e6c6bb73e5f Implemented visit methods for some type nodes.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 798
diff changeset
275
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
276 E visit(ParenExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
277 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
278 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
279 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
280 e.next = visitE(e.next);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
281 e.type = e.next.type;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
282 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
283 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
284 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
285
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
286 E visit(CommaExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
287 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
288 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
289 {
694
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
290 e.lhs = visitE(e.lhs);
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
291 e.rhs = visitE(e.rhs);
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
292 e.type = e.rhs.type;
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
293 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
294 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
295 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
296
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
297 E visit(OrOrExpression)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
298 { return null; }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
299
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
300 E visit(AndAndExpression)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
301 { return null; }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
302
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
303 E visit(SpecialTokenExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
304 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
305 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
306 return e.value;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
307 switch (e.specialToken.kind)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
308 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
309 case TOK.LINE, TOK.VERSION:
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
310 e.value = new IntExpression(e.specialToken.uint_, Types.Uint);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
311 break;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
312 case TOK.FILE, TOK.DATE, TOK.TIME, TOK.TIMESTAMP, TOK.VENDOR:
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
313 e.value = new StringExpression(e.specialToken.str);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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314 break;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
315 default:
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
316 assert(0);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
317 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
318 e.type = e.value.type;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
319 return e.value;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
320 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
321
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
322 E visit(DollarExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
323 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
324 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
325 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
326 e.type = Types.Size_t;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
327 // if (!inArraySubscript)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
328 // error("$ can only be in an array subscript.");
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
329 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
330 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
331
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
332 E visit(NullExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
333 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
334 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
335 e.type = Types.Void_ptr;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
336 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
337 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
338
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
339 E visit(BoolExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
340 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
341 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
342 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
343 e.value = new IntExpression(e.toBool(), Types.Bool);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
344 e.type = Types.Bool;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
345 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
346 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
347
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
348 E visit(IntExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
349 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
350 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
351 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
352
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
353 if (e.number & 0x8000_0000_0000_0000)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
354 e.type = Types.Ulong; // 0xFFFF_FFFF_FFFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
355 else if (e.number & 0xFFFF_FFFF_0000_0000)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
356 e.type = Types.Long; // 0x7FFF_FFFF_FFFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
357 else if (e.number & 0x8000_0000)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
358 e.type = Types.Uint; // 0xFFFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
359 else
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
360 e.type = Types.Int; // 0x7FFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
361 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
362 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
363
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
364 E visit(RealExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
365 {
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
366 if (!e.type)
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
367 e.type = Types.Double;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
368 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
369 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
370
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
371 E visit(ComplexExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
372 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
373 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
374 e.type = Types.Cdouble;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
375 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
376 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
377
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
378 E visit(CharExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
379 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
380 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
381 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
382
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
383 E visit(StringExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
384 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
385 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
386 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
387
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
388 E visit(MixinExpression me)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
389 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
390 if (me.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
391 return me.expr;
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
392 me.expr = visitE(me.expr);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 707
diff changeset
393 auto expr = interpret(me.expr);
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
394 if (expr is Interpreter.NAR)
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
395 return me;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
396 auto stringExpr = expr.Is!(StringExpression);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
397 if (stringExpr is null)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
398 error(me.begin, MSG.MixinArgumentMustBeString);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
399 else
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
400 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
401 auto loc = me.begin.getErrorLocation();
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
402 auto filePath = loc.filePath;
755
90668b83ae5e Introduced new module dil.SourceText and class SourceText.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 711
diff changeset
403 auto sourceText = new SourceText(filePath, stringExpr.getString());
90668b83ae5e Introduced new module dil.SourceText and class SourceText.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 711
diff changeset
404 auto parser = new Parser(sourceText, modul.infoMan);
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
405 expr = parser.start2();
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
406 expr = visitE(expr); // Check expression.
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
407 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
408 me.expr = expr;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
409 me.type = expr.type;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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410 return me.expr;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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411 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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412
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
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413 E visit(ImportExpression ie)
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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414 {
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
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415 if (ie.type)
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
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416 return ie.expr;
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
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417 ie.expr = visitE(ie.expr);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 707
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418 auto expr = interpret(ie.expr);
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
419 if (expr is Interpreter.NAR)
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
420 return ie;
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
421 auto stringExpr = expr.Is!(StringExpression);
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
422 //if (stringExpr is null)
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
423 // error(me.begin, MSG.ImportArgumentMustBeString);
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
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424 // TODO: load file
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
425 //ie.expr = new StringExpression(loadImportFile(stringExpr.getString()));
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
426 return ie.expr;
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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427 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
428 }
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
429 }