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1 module dang.compiler;
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2
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3 import tango.io.Stdout,
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4 tango.core.Signal,
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5 tango.io.FilePath;
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6
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7 import lexer.Lexer,
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8 parser.Parser;
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9
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10 import misc.DataSource;
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11
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12 import ast.Decl;
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13
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14 import tools.AstPrinter,
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15 tools.DotPrinter;
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16
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17 import gen.LuaGen,
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18 gen.LLVMGen;
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19
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20 import sema.Visitor;
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21
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22 import dang.OptParse;
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23
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24 void checkFiles(char[][] *files)
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25 {
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26 bool error = false;
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27
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28 char[][] validFiles;
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29
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30 foreach(file ; *files)
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31 {
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32 auto path = new FilePath(file);
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33
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34 if(!path.exists)
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35 {
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36 Stdout("File '"~file~"' does not exists").newline;
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37 error = true;
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38
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39 continue;
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40 }
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41
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42 bool fileInStack = false;
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43 foreach(vFile ; validFiles)
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44 if(vFile == file)
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45 fileInStack = true;
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46
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47 if(fileInStack)
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48 continue;
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49
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50 validFiles ~= file;
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51 }
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52
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53 *files = validFiles;
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54
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55 if(error)
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56 throw new Exception("Some file(s) did not exist");
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57 }
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58 void main(char[][] args)
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59 {
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60 char[][] filesToHandle;
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61
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62 Signal!(char[][]*) preStart;
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63
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64 Signal!(char[]) preLex;
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65 Signal!(Lexer) postLex;
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66
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67 Signal!(Lexer) preParse;
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68 Signal!(Decl[], DataSource) postParse;
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69
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70 preStart.attach(&checkFiles);
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71
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72 auto argParse = new OptionParser;
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73
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74 argParse.addOption(
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75 ["-h", "--help"],{
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76 argParse.helpText();
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77 return;
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78 }
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79 ).help("Show this help message");
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80
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81 argParse.addOption(
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82 ["--ast-dump-dot"], {
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83 postParse.attach(
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84 (Decl[] decls, DataSource src) {
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85 auto print = new DotPrinter();
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86 print.print(decls);
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87 });
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88 }
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89 ).help("Output the AST as dot-graphicz");
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90
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91 argParse.addOption(
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92 ["--ast-dump-code"], {
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93 postParse.attach(
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94 (Decl[] decls, DataSource src) {
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95 auto print = new AstPrinter(src);
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96 print.print(decls);
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97 });
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98 }
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99 ).help("Output the AST as dot-graphicz");
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100
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101 argParse.addOption(
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102 ["--gen-lua"], {
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103 postParse.attach(
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104 (Decl[] decls, DataSource src) {
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105 auto luaGen = new LuaGen();
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106 luaGen.gen(decls);
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107 });
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108 }
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109 ).help("Compile to Lua code");
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110
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111 argParse.addOption(
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112 ["--gen-llvm"], {
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113 postParse.attach(
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114 (Decl[] decls, DataSource src) {
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115 auto llvmGen = new LLVMGen();
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116 llvmGen.gen(decls);
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117 });
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118 }
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119 ).help("Compile to LLVM code");
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120
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121 auto options = argParse.parse(args);
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122
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123 filesToHandle ~= options.args;
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124
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125 try
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126 {
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127 preStart(&filesToHandle);
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128 }
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129 catch(Exception e)
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130 {
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131 return;
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132 }
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133
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134 foreach(file ; filesToHandle)
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135 {
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136 preLex(file);
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137
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138 auto src = DataSource(file);
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139 auto lexer = new Lexer(src);
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140
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141 postLex(lexer);
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142
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143 preParse(lexer);
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144
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145 auto parser = new Parser;
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146 auto decls = parser.parse(lexer);
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147
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148 postParse(decls, src);
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149 }
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150
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151 /* if (args.length > 1 && args[1] == "lex")
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152 {
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153 Token t;
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154
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155 t = lexer.next();
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156 while(t.type != Tok.EOF)
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157 {
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158 Stdout(src.get(t.position, t.length)).newline;
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159 t = lexer.next();
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160 }
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161 }
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162 else
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163 {
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164 auto decl = parser.parse(lexer);
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165 if(args.length > 1 && args[1] == "dump-ast")
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166 {
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167 auto buffer = new AstBuffer(src.data);
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168 decl.print(buffer);
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169 }
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170 }*/
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171 }
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