Repair/RepairCompiler/MCC/Compiler.java

   1 package MCC;
   2
   3 import java.io.*;
   4 import java.util.*;
   5 import MCC.IR.*;
   6
   7 /**
   8  * The main compiler module, which does the following:
   9  * <ul>
  10  *  <li>
  11  *   nothing.
  12  *  </li>
  13  * <ul>
  14  *
  15  * @author <b>Daniel Roy</b> droy (at) mit (dot) edu
  16  * @version %I, %G
  17  */
  18
  19 public class Compiler {
  20
  21     public static void main(String[] args) {
  22         State state = null;
  23         boolean success = true;
  24         CLI cli = new CLI();
  25         cli.parse(args);
  26         printArgInfo(cli); // prints debugging information and warning
  27
  28         state = new State();
  29         State.currentState = state;
  30         State.debug = cli.debug;
  31         State.verbose = cli.verbose;
  32         State.infile = cli.infile;
  33         State.outfile = cli.outfile;
  34
  35         /*
  36          * added: terminates with an error message if no input file
  37          * specified at command line
  38          */
  39
  40         System.out.println("\nMCC v0.0.1 - MIT LCS (Author: Daniel Roy, Brian Demsky)");
  41
  42         if (cli.infile == null) {
  43             System.err.println("\nError: no input file specified");
  44             System.exit(-1);
  45         }
  46
  47         if (cli.target == CLI.ASSEMBLY || cli.target == CLI.DEFAULT) {
  48             if (state.debug) {
  49                 System.out.println("Compiling " + cli.infile + ".");
  50             }
  51
  52             success = scan(state) || error(state, "Scanning failed, not attempting to parse.");
  53             success = parse(state) || error(state, "Parsing failed, not attempting semantic analysis.");
  54             success = semantics(state) || error(state, "Semantic analysis failed, not attempting variable initialization.");
  55
  56             (new DependencyBuilder(state)).calculate();
  57
  58             try {
  59                 Vector nodes = new Vector(state.constraintnodes.values());
  60                 nodes.addAll(state.rulenodes.values());
  61
  62                 FileOutputStream dotfile;
  63                 dotfile = new FileOutputStream(cli.infile + ".dependencies.edgelabels.dot");
  64                 GraphNode.useEdgeLabels = true;
  65                 GraphNode.DOTVisitor.visit(dotfile, nodes);
  66                 dotfile.close();
  67
  68                 dotfile = new FileOutputStream(cli.infile + ".dependencies.dot");
  69                 GraphNode.useEdgeLabels = false;
  70                 GraphNode.DOTVisitor.visit(dotfile, nodes);
  71                 dotfile.close();
  72             } catch (Exception e) {
  73                 e.printStackTrace();
  74                 System.exit(-1);
  75             }
  76
  77             try {
  78                 FileOutputStream gcode = new FileOutputStream(cli.infile + ".cc");
  79                 NaiveGenerator ng = new NaiveGenerator(state);
  80                 ng.generate(gcode);
  81                 gcode.close();
  82             } catch (Exception e) {
  83                 e.printStackTrace();
  84                 System.exit(-1);
  85             }
  86
  87             if (state.debug) {
  88                 System.out.println("Compilation of " + state.infile + " successful.");
  89                 System.out.println("#SUCCESS#");
  90             }
  91         } else if (cli.target == CLI.INTER) {
  92             if (state.debug) {
  93                 System.out.println("Semantic analysis for " + cli.infile + ".");
  94             }
  95
  96             success = scan(state) || error(state, "Scanning failed, not attempting to parse.");
  97             success = parse(state) || error(state, "Parsing failed, not attempting semantic analysis.");
  98             success = semantics(state) || error(state, "Semantic analysis failed.");
  99
 100             if (state.debug) {
 101                 System.out.println("Semantic analysis of " + state.infile + " successful.");
 102                 System.out.println("#SUCCESS#");
 103             }
 104         } else if (cli.target == CLI.PARSE) {
 105             if (state.debug) {
 106                 System.out.println("Parsing " + cli.infile + ".");
 107             }
 108
 109             success = scan(state) || error(state, "Scanning failed, not attempting to parse.");
 110             success = parse(state) || error(state, "Parsing failed.");
 111
 112             if (state.debug) {
 113                 System.out.println("Parsing of " + state.infile + " successful.");
 114                 System.out.println("#SUCCESS#");
 115             }
 116         } else if (cli.target == CLI.SCAN) {
 117             if (state.debug) {
 118                 System.out.println("Scanning " + cli.infile + ".");
 119             }
 120
 121             success = scan(state) || error(state, "Scanning failed.");
 122
 123             if (state.debug) {
 124                 System.out.println("Scanning of " + state.infile + " successful.");
 125                 System.out.println("#SUCCESS#");
 126             }
 127         }
 128     }
 129
 130     private static void printArgInfo(CLI cli) {
 131         if (cli.debug) {
 132             System.out.println("Printing debugging information...");
 133             System.out.println("Input filename: " + cli.infile);
 134             System.out.println("Output filename: " + cli.outfile);
 135             System.out.print("Target: ");
 136
 137             switch(cli.target) {
 138             case CLI.ASSEMBLY:
 139                 System.out.println("ASSEMBLY");
 140                 break;
 141             case CLI.DEFAULT:
 142                 System.out.println("DEFAULT");
 143                 break;
 144             case CLI.INTER:
 145                 System.out.println("INTER");
 146                 break;
 147             case CLI.LOWIR:
 148                 System.out.println("LOWIR");
 149                 break;
 150             case CLI.PARSE:
 151                 System.out.println("PARSE");
 152                 break;
 153             case CLI.SCAN:
 154                 System.out.println("SCAN");
 155                 break;
 156             default:
 157                 System.out.println("not recognized");
 158                 break;
 159             }
 160
 161             for (int i = 0; i < cli.opts.length; i++) {
 162                 if (cli.opts[i]) {
 163                     System.out.println("Optimization");
 164                 }
 165             }
 166         }
 167
 168         for (int i = 0; i < cli.extraopts.size(); i++) {
 169             System.err.println("Warning: optimization \"" +
 170                                cli.extraopts.elementAt(i) +
 171                                "\" not recognized");
 172         }
 173
 174         for (int i = 0; i < cli.extras.size(); i++) {
 175             System.err.println("Warning: option \"" +
 176                                cli.extras.elementAt(i) +
 177                                "\" not recognized");
 178         }
 179     }
 180
 181     private static boolean error(State state, String error) {
 182         System.err.println(error);
 183         if (state.debug) {
 184             System.out.println("#ERROR#");
 185         }
 186         System.exit(-1);
 187         return false;
 188     }
 189
 190     public static boolean semantics(State state) {
 191         SimpleIRErrorReporter er = new SimpleIRErrorReporter();
 192         SemanticChecker checker = new SemanticChecker();
 193         boolean ok = true;
 194
 195         try {
 196             ok = checker.check(state, er);
 197         } catch (Exception e) {
 198             er.report(null, e.toString());
 199             e.printStackTrace();
 200             er.error = true;
 201         }
 202
 203         if (!ok) {
 204             er.report(null, "Semantic check failed.");
 205         }
 206
 207         System.out.print(er.toString());
 208
 209         return !er.error;
 210     }
 211
 212     public static void debugMessage(int level, String s) {
 213         if (State.currentState.verbose >= level) {
 214             System.err.println(s);
 215         }
 216     }
 217
 218     public static boolean parse(State state) {
 219
 220         /* parse structure file */
 221         try {
 222             debugMessage(1, "Parsing structure file");
 223             LineCount.reset();
 224             FileInputStream infile = new FileInputStream(state.infile + ".struct");
 225             TDLParser parser = new TDLParser(new Lexer(infile));
 226             CUP$TDLParser$actions.debug = state.verbose > 1 ;
 227             state.ptStructures = (ParseNode) parser.parse().value;
 228         } catch (FileNotFoundException fnfe) {
 229             System.err.println("Unable to open file: " + state.infile + ".struct");
 230             System.exit(-1);
 231         } catch (Exception e) {
 232             //      System.out.println(e);
 233             //      e.printStackTrace();
 234             return false;
 235         }
 236
 237         /* parse model file */
 238         try {
 239             debugMessage(1, "Parsing model file");
 240             LineCount.reset();
 241             FileInputStream infile = new FileInputStream(state.infile + ".model");
 242             MDLParser parser = new MDLParser(new Lexer(infile));
 243             CUP$MDLParser$actions.debug = state.verbose > 1 ;
 244             state.ptModel = (ParseNode) parser.parse().value;
 245         } catch (FileNotFoundException fnfe) {
 246             System.err.println("Unable to open file: " + state.infile + ".model");
 247             System.exit(-1);
 248         } catch (Exception e) {
 249             //      System.out.println(e);
 250             //      e.printStackTrace();
 251             return false;
 252         }
 253
 254         /* parse space file */
 255         try {
 256             debugMessage(1, "Parsing space file");
 257             LineCount.reset();
 258             FileInputStream infile = new FileInputStream(state.infile + ".space");
 259             SDLParser parser = new SDLParser(new Lexer(infile));
 260             CUP$SDLParser$actions.debug = state.verbose > 1 ;
 261             state.ptSpace = (ParseNode) parser.parse().value;
 262         } catch (FileNotFoundException fnfe) {
 263             System.err.println("Unable to open file: " + state.infile + ".space");
 264             System.exit(-1);
 265         } catch (Exception e) {
 266             //      System.out.println(e);
 267             //      e.printStackTrace();
 268             return false;
 269         }
 270
 271         /* parse constraints file */
 272         try {
 273             debugMessage(1, "Parsing constraints file");
 274             LineCount.reset();
 275             FileInputStream infile = new FileInputStream(state.infile + ".constraints");
 276             CDLParser parser = new CDLParser(new Lexer(infile));
 277             CUP$CDLParser$actions.debug = state.verbose > 1 ;
 278             state.ptConstraints = (ParseNode) parser.parse().value;
 279         } catch (FileNotFoundException fnfe) {
 280             System.err.println("Unable to open file: " + state.infile + ".constraints");
 281             System.exit(-1);
 282         } catch (Exception e) {
 283             //      System.out.println(e);
 284             //      e.printStackTrace();
 285             return false;
 286         }
 287
 288         boolean success =
 289             !CUP$TDLParser$actions.errors &&
 290             !CUP$SDLParser$actions.errors &&
 291             !CUP$CDLParser$actions.errors &&
 292             !CUP$MDLParser$actions.errors;
 293
 294
 295         // if verbosity is on, then output parse trees as .dot files
 296         if (success && state.verbose > 0) {
 297             try {
 298                 FileOutputStream dotfile;
 299
 300                 dotfile = new FileOutputStream(state.infile + ".struct.dot");
 301                 ParseNodeDOTVisitor.visit(dotfile, state.ptStructures);
 302                 dotfile.close();
 303
 304                 dotfile = new FileOutputStream(state.infile + ".model.dot");
 305                 ParseNodeDOTVisitor.visit(dotfile, state.ptModel);
 306                 dotfile.close();
 307
 308                 dotfile = new FileOutputStream(state.infile + ".space.dot");
 309                 ParseNodeDOTVisitor.visit(dotfile, state.ptSpace);
 310                 dotfile.close();
 311
 312                 dotfile = new FileOutputStream(state.infile + ".constraints.dot");
 313                 ParseNodeDOTVisitor.visit(dotfile, state.ptConstraints);
 314                 dotfile.close();
 315             } catch (Exception e) {
 316                 e.printStackTrace();
 317                 return false;
 318             }
 319         }
 320
 321         return success;
 322     }
 323
 324
 325     public static boolean scan(State state) {
 326         FileInputStream infile = null;
 327         Lexer lexer;
 328         boolean errors = false;
 329         String files[] = { new String(state.infile + ".struct"),
 330                            new String(state.infile + ".model"),
 331                            new String(state.infile + ".constraints"),
 332                            new String(state.infile + ".space") };
 333
 334
 335
 336         for (int i = 0; i < files.length; i++) {
 337
 338             String filename = files[i];
 339
 340             try {
 341                 infile = new FileInputStream(filename);
 342             } catch (FileNotFoundException fnfe) {
 343                 System.err.println("Unable to open file: " + filename);
 344                 System.exit(-1);
 345             }
 346
 347             lexer = new Lexer(infile);
 348
 349
 350             try {
 351                 while (true) {
 352                     java_cup.runtime.Symbol symbol;
 353
 354                     symbol = lexer.next_token();
 355
 356                     if (symbol.sym == Sym.EOF) {
 357                         break;
 358                     } else if (symbol.sym == Sym.BAD) {
 359                         errors = true;
 360                     }
 361
 362                     if (State.verbose > 2) {
 363                         System.out.println("Got token: " + symbol.value);
 364                     }
 365                 }
 366             } catch (Exception e) {
 367                 return false;
 368             }
 369         }
 370
 371         return !errors;
 372     }
 373
 374
 375 }
 376