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annotate src/dil/semantic/Module.d @ 810:525ee3f848d9

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Added modules cmd.Compile and dil.ModuleManager. Added options -I, -release and -unittest to the compile command. Tidied main.d up a bit. Renamed start() methods of SemanticPass1 and 2 to run(). Moved function findModuleFilePath() to class ModuleManager. Added msg CouldntLoadModule. Corrected two others. Added member semanticPass to class Module. Implemented visit(ImportDeclaration) in SemanticPass1.
author Aziz K?ksal <aziz.koeksal@gmail.com>
date Tue, 11 Mar 2008 02:48:01 +0100
parents bcb74c9b895c
children 49e32b5bc161
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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.Module;
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6
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7 import dil.ast.Node;
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8 import dil.ast.Declarations;
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9 import dil.parser.Parser;
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10 import dil.lexer.Lexer;
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11 import dil.semantic.Symbol;
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12 import dil.semantic.Symbols;
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13 import dil.Information;
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14 import dil.SourceText;
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15 import common;
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16
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17 import tango.io.FilePath;
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18 import tango.io.FileConst;
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19
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20 alias FileConst.PathSeparatorChar dirSep;
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21
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22 /// Represents a semantic D module and a source file.
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23 class Module : ScopeSymbol
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24 {
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25 SourceText sourceText; /// The source file of this module.
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26 string moduleFQN; /// Fully qualified name of the module. E.g.: dil.ast.Node
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27 string packageName; /// E.g.: dil.ast
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28 string moduleName; /// E.g.: Node
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29
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30 CompoundDeclaration root; /// The root of the parse tree.
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31 ImportDeclaration[] imports; /// ImportDeclarations found in this file.
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32 ModuleDeclaration moduleDecl; /// The optional ModuleDeclaration in this file.
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33 Parser parser; /// The parser used to parse this file.
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34
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35 /// Indicates which passes have been run on this module.
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36 ///
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37 /// 0 = no pass$(BR)
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38 /// 1 = semantic pass 1$(BR)
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39 /// 2 = semantic pass 2
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40 uint semanticPass;
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41 Module[] modules; /// The imported modules.
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42
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43 InfoManager infoMan; /// Collects error messages.
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44
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45 this()
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46 {
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47 super(SYM.Module, null, null);
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48 }
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49
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50 /// Constructs a Module object.
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51 /// Params:
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52 /// filePath = file path to the source text; loaded in the constructor.
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53 /// infoMan = used for collecting error messages.
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54 this(string filePath, InfoManager infoMan = null)
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55 {
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56 this();
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57 this.sourceText = new SourceText(filePath);
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58 this.infoMan = infoMan;
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59 this.sourceText.load(infoMan);
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60 }
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61
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62 /// Returns the file path of the source text.
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63 string filePath()
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64 {
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65 return sourceText.filePath;
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66 }
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67
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68 /// Returns the file extension: "d" or "di".
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69 string fileExtension()
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70 {
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71 foreach_reverse(i, c; filePath)
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72 if (c == '.')
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73 return filePath[i+1..$];
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74 return "";
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75 }
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76
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77 /// Sets the parser to be used for parsing the source text.
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78 void setParser(Parser parser)
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79 {
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80 this.parser = parser;
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81 }
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82
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83 /// Parses the module.
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84 /// Throws:
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85 /// An Exception if the there's no ModuleDeclaration and
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86 /// the file name is an invalid or reserved D identifier.
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87 void parse()
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88 {
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89 if (this.parser is null)
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90 this.parser = new Parser(sourceText, infoMan);
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91
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92 this.root = parser.start();
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93 this.imports = parser.imports;
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94
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95 if (root.children.length)
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96 { // moduleDecl will be null if first node isn't a ModuleDeclaration.
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97 this.moduleDecl = root.children[0].Is!(ModuleDeclaration);
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98 if (this.moduleDecl)
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99 this.setFQN(moduleDecl.getFQN());
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100 }
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101
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102 if (!this.moduleFQN.length)
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103 { // Take base name of file path as module name.
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104 auto str = (new FilePath(filePath)).name();
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105 if (Lexer.isReservedIdentifier(str))
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106 throw new Exception("'"~str~"' is not a valid module name; it's a reserved or invalid D identifier.");
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107 this.moduleFQN = this.moduleName = str;
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108 }
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109 }
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110
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111 /// Returns the first token of the module's source text.
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112 Token* firstToken()
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113 {
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114 return parser.lexer.firstToken();
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115 }
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116
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117 /// Returns true if there are errors in the source file.
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118 bool hasErrors()
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119 {
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120 return parser.errors.length || parser.lexer.errors.length;
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121 }
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122
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123 /// Returns a list of import paths.
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124 /// E.g.: ["dil/ast/Node", "dil/semantic/Module"]
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125 string[] getImportPaths()
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126 {
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127 string[] result;
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128 foreach (import_; imports)
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129 result ~= import_.getModuleFQNs(dirSep);
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130 return result;
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131 }
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132
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133 /// Returns the fully qualified name of this module.
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134 /// E.g.: dil.ast.Node
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135 string getFQN()
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136 {
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137 return moduleFQN;
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138 }
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139
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140 /// Set's the module's FQN.
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141 void setFQN(string moduleFQN)
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142 {
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143 uint i = moduleFQN.length;
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144 if (i != 0) // Don't decrement if string has zero length.
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145 i--;
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146 // Find last dot.
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147 for (; i != 0 && moduleFQN[i] != '.'; i--)
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148 {}
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149 this.moduleFQN = moduleFQN;
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150 this.packageName = moduleFQN[0..i];
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151 this.moduleName = moduleFQN[(i == 0 ? 0 : i+1) .. $];
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152 }
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153
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154 /// Returns the module's FQN with slashes instead of dots.
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155 /// E.g.: dil/ast/Node
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156 string getFQNPath()
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157 {
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158 string FQNPath = moduleFQN.dup;
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159 foreach (i, c; FQNPath)
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160 if (c == '.')
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161 FQNPath[i] = dirSep;
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162 return FQNPath;
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163 }
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164 }