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annotate trunk/src/dil/semantic/Pass2.d @ 798:c24be8d4f6ab

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Added documentation comments.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Sat, 01 Mar 2008 02:53:06 +0100
parents 90668b83ae5e
children 9e6c6bb73e5f
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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 start()
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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 visit(modul.root);
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53 }
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54
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55 /// Enters a new scope.
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56 void enterScope(ScopeSymbol s)
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57 {
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58 scop = scop.enter(s);
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59 }
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60
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61 /// Exits the current scope.
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62 void exitScope()
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63 {
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64 scop = scop.exit();
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65 }
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66
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67 /// Evaluates e and returns the result.
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68 Expression interpret(Expression e)
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69 {
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70 return Interpreter.interpret(e, modul.infoMan/+, scop+/);
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71 }
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72
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73 /// Creates an error report.
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74 void error(Token* token, char[] formatMsg, ...)
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75 {
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76 auto location = token.getErrorLocation();
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77 auto msg = Format(_arguments, _argptr, formatMsg);
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78 modul.infoMan ~= new SemanticError(location, msg);
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79 }
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80
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81 /// Some handy aliases.
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82 private alias Declaration D;
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83 private alias Expression E; /// ditto
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84 private alias Statement S; /// ditto
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85 private alias TypeNode T; /// ditto
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86
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87 /// The scope symbol to use in identifier or template instance expressions.
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88 /// E.g.: object.method(); // After 'object' has been visited, dotIdScope is
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89 /// // set, and 'method' will be looked up there.
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90 //ScopeSymbol dotIdScope;
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91
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92 override
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93 {
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94 D visit(CompoundDeclaration d)
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95 {
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96 return super.visit(d);
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97 }
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98
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99 D visit(EnumDeclaration d)
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100 {
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101 d.symbol.setCompleting();
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102
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103 Type type = Types.Int; // Default to int.
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104 if (d.baseType)
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105 type = visitT(d.baseType).type;
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106 d.symbol.type = new TypeEnum(d.symbol, type);
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107
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108 enterScope(d.symbol);
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109
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110 foreach (member; d.members)
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111 {
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112 Expression finalValue;
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113 member.symbol.setCompleting();
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114 if (member.value)
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115 {
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116 member.value = visitE(member.value);
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117 finalValue = interpret(member.value);
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118 if (finalValue is Interpreter.NAR)
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119 finalValue = new IntExpression(0, d.symbol.type);
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120 }
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121 //else
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122 // TODO: increment a number variable and assign that to value.
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123 member.symbol.type = d.symbol.type; // Assign TypeEnum.
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124 member.symbol.value = finalValue;
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125 member.symbol.setComplete();
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126 }
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127
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128 exitScope();
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129 d.symbol.setComplete();
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130 return d;
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131 }
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132
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133 D visit(MixinDeclaration md)
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134 {
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135 if (md.decls)
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136 return md.decls;
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137 if (md.isMixinExpression)
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Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
138 {
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
139 md.argument = visitE(md.argument);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 707
diff changeset
140 auto expr = interpret(md.argument);
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
141 if (expr is Interpreter.NAR)
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
142 return md;
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
143 auto stringExpr = expr.Is!(StringExpression);
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
144 if (stringExpr is null)
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
145 {
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
146 error(md.begin, MSG.MixinArgumentMustBeString);
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
147 return md;
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
148 }
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
149 else
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
150 { // Parse the declarations in the string.
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
151 auto loc = md.begin.getErrorLocation();
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
152 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
153 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
154 auto parser = new Parser(sourceText, modul.infoMan);
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
155 md.decls = parser.start();
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
156 }
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
157 }
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
158 else
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
159 {
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
160 // TODO: implement template mixin.
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
161 }
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
162 return md.decls;
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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163 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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164
694
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
165 T visit(TypeofType t)
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
166 {
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
167 t.e = visitE(t.e);
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
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168 t.type = t.e.type;
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
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diff changeset
169 return t;
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
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170 }
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
171
692
d33895f679eb Tidied up the class Scope a bit.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 684
diff changeset
172 T visit(ArrayType t)
d33895f679eb Tidied up the class Scope a bit.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 684
diff changeset
173 {
d33895f679eb Tidied up the class Scope a bit.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 684
diff changeset
174 return t;
d33895f679eb Tidied up the class Scope a bit.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 684
diff changeset
175 }
d33895f679eb Tidied up the class Scope a bit.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 684
diff changeset
176
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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177 T visit(PointerType t)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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178 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
179 t.type = visitT(t.next).type.ptrTo();
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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180 return t;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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181 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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182
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
183 T visit(IntegralType t)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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184 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
185 // A table mapping the kind of a token to its corresponding semantic Type.
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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186 TypeBasic[TOK] tok2Type = [
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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187 TOK.Char : Types.Char, TOK.Wchar : Types.Wchar, TOK.Dchar : Types.Dchar, TOK.Bool : Types.Bool,
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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188 TOK.Byte : Types.Byte, TOK.Ubyte : Types.Ubyte, TOK.Short : Types.Short, TOK.Ushort : Types.Ushort,
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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189 TOK.Int : Types.Int, TOK.Uint : Types.Uint, TOK.Long : Types.Long, TOK.Ulong : Types.Ulong,
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
190 TOK.Cent : Types.Cent, TOK.Ucent : Types.Ucent,
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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191 TOK.Float : Types.Float, TOK.Double : Types.Double, TOK.Real : Types.Real,
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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192 TOK.Ifloat : Types.Ifloat, TOK.Idouble : Types.Idouble, TOK.Ireal : Types.Ireal,
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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193 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:
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194 ];
694
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
195 assert(t.tok in tok2Type);
684
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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196 t.type = tok2Type[t.tok];
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
197 return t;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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198 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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199
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
200 E visit(ParenExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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201 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
202 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
203 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
204 e.next = visitE(e.next);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
205 e.type = e.next.type;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
206 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
207 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
208 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
209
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
210 E visit(CommaExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
211 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
212 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
213 {
694
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
214 e.lhs = visitE(e.lhs);
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
215 e.rhs = visitE(e.rhs);
19a34b69cc7d Renamed some members of BinaryExpression and QualifiedType.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 692
diff changeset
216 e.type = e.rhs.type;
684
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
217 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
218 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
219 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
220
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
221 E visit(OrOrExpression)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
222 { return null; }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
223
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
224 E visit(AndAndExpression)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
225 { return null; }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
226
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
227 E visit(SpecialTokenExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
228 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
229 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
230 return e.value;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
231 switch (e.specialToken.kind)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
232 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
233 case TOK.LINE, TOK.VERSION:
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
234 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
235 break;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
236 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
237 e.value = new StringExpression(e.specialToken.str);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
238 break;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
239 default:
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
240 assert(0);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
241 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
242 e.type = e.value.type;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
243 return e.value;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
244 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
245
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
246 E visit(DollarExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
247 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
248 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
249 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
250 e.type = Types.Size_t;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
251 // if (!inArraySubscript)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
252 // error("$ can only be in an array subscript.");
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
253 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
254 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
255
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
256 E visit(NullExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
257 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
258 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
259 e.type = Types.Void_ptr;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
260 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
261 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
262
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
263 E visit(BoolExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
264 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
265 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
266 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
267 e.value = new IntExpression(e.toBool(), Types.Bool);
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
diff changeset
268 e.type = Types.Bool;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
269 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
270 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
271
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
272 E visit(IntExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
273 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
274 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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275 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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276
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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277 if (e.number & 0x8000_0000_0000_0000)
10b314bf37e3 Added module dil.semantic.Pass2.
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278 e.type = Types.Ulong; // 0xFFFF_FFFF_FFFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
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279 else if (e.number & 0xFFFF_FFFF_0000_0000)
10b314bf37e3 Added module dil.semantic.Pass2.
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280 e.type = Types.Long; // 0x7FFF_FFFF_FFFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
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281 else if (e.number & 0x8000_0000)
10b314bf37e3 Added module dil.semantic.Pass2.
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282 e.type = Types.Uint; // 0xFFFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
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283 else
10b314bf37e3 Added module dil.semantic.Pass2.
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284 e.type = Types.Int; // 0x7FFF_FFFF
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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285 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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286 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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287
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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288 E visit(RealExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
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289 {
704
ff4643a4a97c Wrote code for SemanticPass2.visit(MixinDeclaration).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 696
diff changeset
290 if (!e.type)
684
10b314bf37e3 Added module dil.semantic.Pass2.
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291 e.type = Types.Double;
10b314bf37e3 Added module dil.semantic.Pass2.
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292 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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293 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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294
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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295 E visit(ComplexExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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296 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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297 if (!e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
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298 e.type = Types.Cdouble;
10b314bf37e3 Added module dil.semantic.Pass2.
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299 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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300 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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301
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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302 E visit(CharExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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303 {
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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304 if (e.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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305 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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306 if (e.character <= 0xFF)
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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307 e.type = Types.Char;
10b314bf37e3 Added module dil.semantic.Pass2.
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308 else if (e.character <= 0xFFFF)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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309 e.type = Types.Wchar;
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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310 else
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
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311 e.type = Types.Dchar;
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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312 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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313 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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314
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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315 E visit(StringExpression e)
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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316 {
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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317 return e;
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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318 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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319
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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320 E visit(MixinExpression me)
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:
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322 if (me.type)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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323 return me.expr;
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
324 me.expr = visitE(me.expr);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 707
diff changeset
325 auto expr = interpret(me.expr);
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
326 if (expr is Interpreter.NAR)
684
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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327 return me;
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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328 auto stringExpr = expr.Is!(StringExpression);
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
329 if (stringExpr is null)
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
330 error(me.begin, MSG.MixinArgumentMustBeString);
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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331 else
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
332 {
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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333 auto loc = me.begin.getErrorLocation();
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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334 auto filePath = loc.filePath;
755
90668b83ae5e Introduced new module dil.SourceText and class SourceText.
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parents: 711
diff changeset
335 auto sourceText = new SourceText(filePath, stringExpr.getString());
90668b83ae5e Introduced new module dil.SourceText and class SourceText.
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parents: 711
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336 auto parser = new Parser(sourceText, modul.infoMan);
684
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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337 expr = parser.start2();
10b314bf37e3 Added module dil.semantic.Pass2.
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parents:
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338 expr = visitE(expr); // Check expression.
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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339 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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340 me.expr = expr;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
341 me.type = expr.type;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
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342 return me.expr;
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
343 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
344
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
345 E visit(ImportExpression ie)
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
346 {
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
347 if (ie.type)
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
348 return ie.expr;
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
349 ie.expr = visitE(ie.expr);
708
3a4c7d444467 Added method interpret() to class SemanticPass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 707
diff changeset
350 auto expr = interpret(ie.expr);
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
351 if (expr is Interpreter.NAR)
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
352 return ie;
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
353 auto stringExpr = expr.Is!(StringExpression);
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
354 //if (stringExpr is null)
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
355 // error(me.begin, MSG.ImportArgumentMustBeString);
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
356 // TODO: load file
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
357 //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
358 return ie.expr;
684
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
359 }
10b314bf37e3 Added module dil.semantic.Pass2.
Aziz K?ksal <aziz.koeksal@gmail.com>
parents:
diff changeset
360 }
696
c67d2c3c0b3d Wrote code for SemanticPass2.visit(ImportExpression).
Aziz K?ksal <aziz.koeksal@gmail.com>
parents: 694
diff changeset
361 }