net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/parser/Parser.java

   1 /*******************************************************************************
   2  * Copyright (c) 2002 Klaus Hartlage - www.eclipseproject.de All rights
   3  * reserved. This program and the accompanying material are made available under
   4  * the terms of the Common Public License v1.0 which accompanies this
   5  * distribution, and is available at http://www.eclipse.org/legal/cpl-v10.html
   6  *
   7  * Contributors: Klaus Hartlage - www.eclipseproject.de
   8  ******************************************************************************/
   9 package net.sourceforge.phpdt.internal.compiler.parser;
  10 import java.util.ArrayList;
  11
  12 import net.sourceforge.phpdt.core.compiler.CharOperation;
  13 import net.sourceforge.phpdt.core.compiler.ITerminalSymbols;
  14 import net.sourceforge.phpdt.core.compiler.InvalidInputException;
  15 import net.sourceforge.phpdt.internal.compiler.impl.CompilerOptions;
  16 import net.sourceforge.phpdt.internal.compiler.impl.ReferenceContext;
  17 import net.sourceforge.phpdt.internal.compiler.lookup.CompilerModifiers;
  18 import net.sourceforge.phpdt.internal.compiler.lookup.TypeConstants;
  19 import net.sourceforge.phpdt.internal.compiler.problem.ProblemReporter;
  20 import net.sourceforge.phpdt.internal.compiler.problem.ProblemSeverities;
  21 import net.sourceforge.phpdt.internal.compiler.util.Util;
  22 import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
  23 import net.sourceforge.phpeclipse.internal.compiler.ast.AbstractMethodDeclaration;
  24 import net.sourceforge.phpeclipse.internal.compiler.ast.AstNode;
  25 import net.sourceforge.phpeclipse.internal.compiler.ast.CompilationUnitDeclaration;
  26 import net.sourceforge.phpeclipse.internal.compiler.ast.FieldDeclaration;
  27 import net.sourceforge.phpeclipse.internal.compiler.ast.ImportReference;
  28 import net.sourceforge.phpeclipse.internal.compiler.ast.MethodDeclaration;
  29 import net.sourceforge.phpeclipse.internal.compiler.ast.SingleTypeReference;
  30 import net.sourceforge.phpeclipse.internal.compiler.ast.TypeDeclaration;
  31
  32 import org.eclipse.core.resources.IFile;
  33 public class Parser //extends PHPParserSuperclass
  34     implements ITerminalSymbols, CompilerModifiers, ParserBasicInformation {
  35   //internal data for the automat
  36   protected final static int StackIncrement = 255;
  37   protected int stateStackTop;
  38   protected int[] stack = new int[StackIncrement];
  39   public int firstToken; // handle for multiple parsing goals
  40   public int lastAct; //handle for multiple parsing goals
  41   protected RecoveredElement currentElement;
  42   public static boolean VERBOSE_RECOVERY = false;
  43   protected boolean diet = false; //tells the scanner to jump over some
  44   // parts of the code/expressions like
  45   // method bodies
  46   //scanner token
  47   public Scanner scanner;
  48   private ArrayList phpList;
  49   private int currentPHPString;
  50   private boolean phpEnd;
  51   // private static HashMap keywordMap = null;
  52   private String str;
  53   // current character
  54   //  char ch;
  55   // current token
  56   int token;
  57   // row counter for syntax errors:
  58   //int rowCount;
  59   // column counter for syntax errors:
  60   //int columnCount;
  61   //int chIndx;
  62   //
  63   //    // current identifier
  64   //    String identifier;
  65   Long longNumber;
  66   Double doubleNumber;
  67   private String stringValue;
  68   /** Contains the current expression. */
  69   // private StringBuffer expression;
  70   //private boolean phpMode;
  71   protected int modifiers;
  72   protected int modifiersSourceStart;
  73 //  protected IdentifierIndexManager indexManager;
  74
  75   protected Parser(ProblemReporter problemReporter) {
  76     this.problemReporter = problemReporter;
  77     this.options = problemReporter.options;
  78     this.currentPHPString = 0;
  79     //          PHPParserSuperclass.fileToParse = fileToParse;
  80     this.phpList = null;
  81 //    this.indexManager = null;
  82     this.str = "";
  83     this.token = TokenNameEOF;
  84     //    this.chIndx = 0;
  85     //    this.rowCount = 1;
  86     //    this.columnCount = 0;
  87     this.phpEnd = false;
  88     //   getNextToken();
  89     this.initializeScanner();
  90   }
  91   public void setFileToParse(IFile fileToParse) {
  92     this.currentPHPString = 0;
  93     //    PHPParserSuperclass.fileToParse = fileToParse;
  94     this.phpList = null;
  95 //    this.indexManager = null;
  96     this.str = "";
  97     this.token = TokenNameEOF;
  98     this.phpEnd = false;
  99     this.initializeScanner();
 100   }
 101   /**
 102    * ClassDeclaration Constructor.
 103    *
 104    * @param s
 105    * @param sess
 106    *          Description of Parameter
 107    * @see
 108    */
 109   public Parser(IFile fileToParse) {
 110     //    if (keywordMap == null) {
 111     //      keywordMap = new HashMap();
 112     //      for (int i = 0; i < PHP_KEYWORS.length; i++) {
 113     //        keywordMap.put(PHP_KEYWORS[i], new Integer(PHP_KEYWORD_TOKEN[i]));
 114     //      }
 115     //    }
 116     this.currentPHPString = 0;
 117     //    PHPParserSuperclass.fileToParse = fileToParse;
 118     this.phpList = null;
 119     this.includesList = null;
 120     this.str = "";
 121     this.token = TokenNameEOF;
 122     //    this.chIndx = 0;
 123     //    this.rowCount = 1;
 124     //    this.columnCount = 0;
 125     this.phpEnd = false;
 126     //   getNextToken();
 127     this.initializeScanner();
 128   }
 129   public void initializeScanner() {
 130     this.scanner = new Scanner(false /* comment */, false /* whitespace */, this.options
 131         .getSeverity(CompilerOptions.NonExternalizedString) != ProblemSeverities.Ignore /* nls */, false, false,
 132         this.options.taskTags/* taskTags */, this.options.taskPriorites/* taskPriorities */);
 133   }
 134   /**
 135    * Create marker for the parse error
 136    */
 137   //  private void setMarker(String message, int charStart, int charEnd, int
 138   // errorLevel) {
 139   //    setMarker(fileToParse, message, charStart, charEnd, errorLevel);
 140   //  }
 141   /**
 142    * This method will throw the SyntaxError. It will add the good lines and
 143    * columns to the Error
 144    *
 145    * @param error
 146    *          the error message
 147    * @throws SyntaxError
 148    *           the error raised
 149    */
 150   private void throwSyntaxError(String error) {
 151     int problemStartPosition = scanner.getCurrentTokenStartPosition();
 152     int problemEndPosition = scanner.getCurrentTokenEndPosition();
 153     throwSyntaxError(error, problemStartPosition, problemEndPosition + 1);
 154   }
 155   /**
 156    * This method will throw the SyntaxError. It will add the good lines and
 157    * columns to the Error
 158    *
 159    * @param error
 160    *          the error message
 161    * @throws SyntaxError
 162    *           the error raised
 163    */
 164   //  private void throwSyntaxError(String error, int startRow) {
 165   //    throw new SyntaxError(startRow, 0, " ", error);
 166   //  }
 167   private void throwSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
 168     problemReporter.phpParsingError(new String[]{error}, problemStartPosition, problemEndPosition, referenceContext,
 169         compilationUnit.compilationResult);
 170     throw new SyntaxError(1, 0, " ", error);
 171   }
 172   private void reportSyntaxError(String error, int problemStartPosition, int problemEndPosition) {
 173     problemReporter.phpParsingError(new String[]{error}, problemStartPosition, problemEndPosition, referenceContext,
 174         compilationUnit.compilationResult);
 175   }
 176   private void reportSyntaxWarning(String error, int problemStartPosition, int problemEndPosition) {
 177     problemReporter.phpParsingWarning(new String[]{error}, problemStartPosition, problemEndPosition, referenceContext,
 178         compilationUnit.compilationResult);
 179   }
 180   /**
 181    * Method Declaration.
 182    *
 183    * @see
 184    */
 185   //  private void getChar() {
 186   //    if (str.length() > chIndx) {
 187   //      ch = str.charAt(chIndx++);
 188   //
 189   //      return;
 190   //    }
 191   //
 192   //    chIndx = str.length() + 1;
 193   //    ch = ' ';
 194   //    // token = TokenNameEOF;
 195   //    phpEnd = true;
 196   //  }
 197   /**
 198    * gets the next token from input
 199    */
 200   private void getNextToken() {
 201     try {
 202       token = scanner.getNextToken();
 203       if (Scanner.DEBUG) {
 204         int currentEndPosition = scanner.getCurrentTokenEndPosition();
 205         int currentStartPosition = scanner.getCurrentTokenStartPosition();
 206         System.out.print(currentStartPosition + "," + currentEndPosition + ": ");
 207         System.out.println(scanner.toStringAction(token));
 208       }
 209     } catch (InvalidInputException e) {
 210       token = TokenNameERROR;
 211       String detailedMessage = e.getMessage();
 212
 213       if (detailedMessage==Scanner.UNTERMINATED_STRING) {
 214         throwSyntaxError("Unterminated string.");
 215       } else if (detailedMessage==Scanner.UNTERMINATED_COMMENT) {
 216         throwSyntaxError("Unterminated commment.");
 217       }
 218     }
 219     return;
 220   }
 221   public void init(String s) {
 222     this.str = s;
 223     this.token = TokenNameEOF;
 224     //    this.chIndx = 0;
 225     //    this.rowCount = 1;
 226     //    this.columnCount = 0;
 227     this.phpEnd = false;
 228     //    this.phpMode = false;
 229     /* scanner initialization */
 230     scanner.setSource(s.toCharArray());
 231     scanner.setPHPMode(false);
 232   }
 233   protected void initialize(boolean phpMode) {
 234     initialize(phpMode, null);
 235   }
 236   protected void initialize(boolean phpMode, IdentifierIndexManager indexManager) {
 237     compilationUnit = null;
 238     referenceContext = null;
 239     includesList = new ArrayList();
 240 //    this.indexManager = indexManager;
 241     this.str = "";
 242     this.token = TokenNameEOF;
 243     //    this.chIndx = 0;
 244     //    this.rowCount = 1;
 245     //    this.columnCount = 0;
 246     this.phpEnd = false;
 247     //    this.phpMode = phpMode;
 248     scanner.setPHPMode(phpMode);
 249   }
 250   /**
 251    * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
 252    * &lt;/body&gt;'
 253    */
 254   public void parse(String s) {
 255     init(s);
 256     parse();
 257   }
 258   /**
 259    * Parses a string with php tags i.e. '&lt;body&gt; &lt;?php phpinfo() ?&gt;
 260    * &lt;/body&gt;'
 261    */
 262   protected void parse() {
 263     getNextToken();
 264     do {
 265       try {
 266         if (token != TokenNameEOF && token != TokenNameERROR) {
 267           statementList();
 268         }
 269         if (token != TokenNameEOF) {
 270           if (token == TokenNameERROR) {
 271             throwSyntaxError("Scanner error (Found unknown token: " + scanner.toStringAction(token) + ")");
 272           }
 273           if (token == TokenNameRPAREN) {
 274             throwSyntaxError("Too many closing ')'; end-of-file not reached.");
 275           }
 276           if (token == TokenNameRBRACE) {
 277             throwSyntaxError("Too many closing '}'; end-of-file not reached.");
 278           }
 279           if (token == TokenNameRBRACKET) {
 280             throwSyntaxError("Too many closing ']'; end-of-file not reached.");
 281           }
 282           if (token == TokenNameLPAREN) {
 283             throwSyntaxError("Read character '('; end-of-file not reached.");
 284           }
 285           if (token == TokenNameLBRACE) {
 286             throwSyntaxError("Read character '{';  end-of-file not reached.");
 287           }
 288           if (token == TokenNameLBRACKET) {
 289             throwSyntaxError("Read character '[';  end-of-file not reached.");
 290           }
 291           throwSyntaxError("End-of-file not reached.");
 292         }
 293         break;
 294       } catch (SyntaxError sytaxErr1) {
 295         // setMarker(sytaxErr1.getMessage(), sytaxErr1.getLine(),
 296         // ERROR);
 297         //        setMarker(sytaxErr1.getMessage(),
 298         // scanner.getCurrentTokenStartPosition(),
 299         // scanner.getCurrentTokenEndPosition(), ERROR);
 300         try {
 301           // if an error occured,
 302           // try to find keywords 'class' or 'function'
 303           // to parse the rest of the string
 304           while (token != TokenNameEOF && token != TokenNameERROR) {
 305             if (token == TokenNameabstract || token == TokenNamefinal || token == TokenNameclass || token == TokenNamefunction) {
 306               break;
 307             }
 308             getNextToken();
 309           }
 310           if (token == TokenNameEOF || token == TokenNameERROR) {
 311             break;
 312           }
 313         } catch (SyntaxError sytaxErr2) {
 314           //    setMarker(sytaxErr2.getMessage(), sytaxErr2.getLine(),
 315           // ERROR);
 316           //          setMarker(sytaxErr2.getMessage(),
 317           // scanner.getCurrentTokenStartPosition(),
 318           // scanner.getCurrentTokenEndPosition(), ERROR);
 319           break;
 320         }
 321       }
 322     } while (true);
 323
 324     endParse(0);
 325   }
 326
 327   protected CompilationUnitDeclaration endParse(int act) {
 328
 329     this.lastAct = act;
 330
 331     if (currentElement != null) {
 332       currentElement.topElement().updateParseTree();
 333       if (VERBOSE_RECOVERY) {
 334         System.out.print(Util.bind("parser.syntaxRecovery")); //$NON-NLS-1$
 335         System.out.println("--------------------------"); //$NON-NLS-1$
 336         System.out.println(compilationUnit);
 337         System.out.println("----------------------------------"); //$NON-NLS-1$
 338       }
 339     } else {
 340       if (diet & VERBOSE_RECOVERY) {
 341         System.out.print(Util.bind("parser.regularParse")); //$NON-NLS-1$
 342         System.out.println("--------------------------"); //$NON-NLS-1$
 343         System.out.println(compilationUnit);
 344         System.out.println("----------------------------------"); //$NON-NLS-1$
 345       }
 346     }
 347     if (scanner.recordLineSeparator) {
 348       compilationUnit.compilationResult.lineSeparatorPositions = scanner.getLineEnds();
 349     }
 350     if (scanner.taskTags != null) {
 351       for (int i = 0; i < scanner.foundTaskCount; i++) {
 352         problemReporter().task(new String(scanner.foundTaskTags[i]), new String(scanner.foundTaskMessages[i]),
 353             scanner.foundTaskPriorities[i] == null ? null : new String(scanner.foundTaskPriorities[i]),
 354             scanner.foundTaskPositions[i][0], scanner.foundTaskPositions[i][1]);
 355       }
 356     }
 357     compilationUnit.imports = new ImportReference[includesList.size()];
 358     for (int i = 0; i < includesList.size(); i++) {
 359       compilationUnit.imports[i] = (ImportReference) includesList.get(i);
 360     }
 361     return compilationUnit;
 362   }
 363   //  public PHPOutlineInfo parseInfo(Object parent, String s) {
 364   //    PHPOutlineInfo outlineInfo = new PHPOutlineInfo(parent);
 365   //    // Stack stack = new Stack();
 366   //    // stack.push(outlineInfo.getDeclarations());
 367   //    this.str = s;
 368   //    this.token = TokenNameEOF;
 369   //    // this.chIndx = 0;
 370   //    // this.rowCount = 1;
 371   //    // this.columnCount = 0;
 372   //    this.phpEnd = false;
 373   //    this.phpMode = false;
 374   //    scanner.setSource(s.toCharArray());
 375   //    scanner.setPHPMode(false);
 376   //
 377   //    getNextToken();
 378   //    parseDeclarations(outlineInfo, outlineInfo.getDeclarations(), false);
 379   //
 380   //    return outlineInfo;
 381   //  }
 382   private boolean isVariable() {
 383     return token == TokenNameVariable; //  || token == TokenNamethis;
 384   }
 385   //  private void parseDeclarations(PHPOutlineInfo outlineInfo,
 386   //      OutlineableWithChildren current, boolean goBack) {
 387   //    char[] ident;
 388   //    // PHPClassDeclaration current = (PHPClassDeclaration) stack.peek();
 389   //    PHPSegmentWithChildren temp;
 390   //    int counter = 0;
 391   //    IPreferenceStore store =
 392   // PHPeclipsePlugin.getDefault().getPreferenceStore();
 393   //    try {
 394   //      while (token != TokenNameEOF && token != TokenNameERROR) {
 395   //        if (token == TokenNameVariable) {
 396   //          ident = scanner.getCurrentIdentifierSource();
 397   //          outlineInfo.addVariable(new String(ident));
 398   //          getNextToken();
 399   //        } else if (token == TokenNamevar) {
 400   //          getNextToken();
 401   //          if (token == TokenNameVariable
 402   //              && store.getBoolean(PHPeclipsePlugin.PHP_OUTLINE_VAR)) {
 403   //            ident = scanner.getCurrentIdentifierSource();
 404   //            //substring(1) added because PHPVarDeclaration doesn't
 405   //            // need the $ anymore
 406   //            String variableName = new String(ident).substring(1);
 407   //            outlineInfo.addVariable(variableName);
 408   //            getNextToken();
 409   //            if (token != TokenNameSEMICOLON) {
 410   //              getNextToken();
 411   //              ident = scanner.getCurrentTokenSource();
 412   //              if (token > TokenNameKEYWORD) {
 413   //                current.add(new PHPVarDeclaration(current, variableName,
 414   //                // chIndx - ident.length,
 415   //                    scanner.getCurrentTokenStartPosition(), new String(ident)));
 416   //              } else {
 417   //                switch (token) {
 418   //                  case TokenNameVariable :
 419   //                  case TokenNamethis :
 420   //                    current.add(new PHPVarDeclaration(current, variableName,
 421   //                    // chIndx -
 422   //                        // ident.length,
 423   //                        scanner.getCurrentTokenStartPosition(), new String(
 424   //                            ident)));
 425   //                    break;
 426   //                  case TokenNameIdentifier :
 427   //                    current.add(new PHPVarDeclaration(current, variableName,
 428   //                    // chIndx -
 429   //                        // ident.length,
 430   //                        scanner.getCurrentTokenStartPosition(), new String(
 431   //                            ident)));
 432   //                    break;
 433   //                  case TokenNameDoubleLiteral :
 434   //                    current.add(new PHPVarDeclaration(current, variableName
 435   //                        + doubleNumber,
 436   //                    // chIndx -
 437   //                        // ident.length,
 438   //                        scanner.getCurrentTokenStartPosition(), new String(
 439   //                            ident)));
 440   //                    break;
 441   //                  case TokenNameIntegerLiteral :
 442   //                    current.add(new PHPVarDeclaration(current, variableName,
 443   //                    // chIndx -
 444   //                        // ident.length,
 445   //                        scanner.getCurrentTokenStartPosition(), new String(
 446   //                            ident)));
 447   //                    break;
 448   //                  case TokenNameStringInterpolated :
 449   //                  case TokenNameStringLiteral :
 450   //                    current.add(new PHPVarDeclaration(current, variableName,
 451   //                    // chIndx -
 452   //                        // ident.length,
 453   //                        scanner.getCurrentTokenStartPosition(), new String(
 454   //                            ident)));
 455   //                    break;
 456   //                  case TokenNameStringConstant :
 457   //                    current.add(new PHPVarDeclaration(current, variableName,
 458   //                    // chIndx -
 459   //                        // ident.length,
 460   //                        scanner.getCurrentTokenStartPosition(), new String(
 461   //                            ident)));
 462   //                    break;
 463   //                  default :
 464   //                    current.add(new PHPVarDeclaration(current, variableName,
 465   //                    // chIndx -
 466   //                        // ident.length
 467   //                        scanner.getCurrentTokenStartPosition()));
 468   //                    break;
 469   //                }
 470   //              }
 471   //            } else {
 472   //              ident = scanner.getCurrentIdentifierSource();
 473   //              current.add(new PHPVarDeclaration(current, variableName,
 474   //              // chIndx - ident.length
 475   //                  scanner.getCurrentTokenStartPosition()));
 476   //            }
 477   //          }
 478   //        } else if (token == TokenNamefunction) {
 479   //          getNextToken();
 480   //          if (token == TokenNameAND) {
 481   //            getNextToken();
 482   //          }
 483   //          if (token == TokenNameIdentifier
 484   //              && store.getBoolean(PHPeclipsePlugin.PHP_OUTLINE_FUNC)) {
 485   //            ident = scanner.getCurrentIdentifierSource();
 486   //            outlineInfo.addVariable(new String(ident));
 487   //            temp = new PHPFunctionDeclaration(current, new String(ident),
 488   //            // chIndx - ident.length
 489   //                scanner.getCurrentTokenStartPosition());
 490   //            current.add(temp);
 491   //            getNextToken();
 492   //            parseDeclarations(outlineInfo, temp, true);
 493   //          }
 494   //        } else if (token == TokenNameclass) {
 495   //          getNextToken();
 496   //          if (token == TokenNameIdentifier
 497   //              && store.getBoolean(PHPeclipsePlugin.PHP_OUTLINE_CLASS)) {
 498   //            ident = scanner.getCurrentIdentifierSource();
 499   //            outlineInfo.addVariable(new String(ident));
 500   //            temp = new PHPClassDeclaration(current, new String(ident),
 501   //            // chIndx - ident.len
 502   //                scanner.getCurrentTokenStartPosition());
 503   //            current.add(temp);
 504   //            // stack.push(temp);
 505   //            getNextToken();
 506   //            //skip tokens for classname, extends and others until
 507   //            // we have the opening '{'
 508   //            while (token != TokenNameLBRACE && token != TokenNameEOF
 509   //                && token != TokenNameERROR) {
 510   //              getNextToken();
 511   //            }
 512   //            parseDeclarations(outlineInfo, temp, true);
 513   //            // stack.pop();
 514   //          }
 515   //        } else if ((token == TokenNameLBRACE)
 516   //            || (token == TokenNameDOLLAR_LBRACE)) {
 517   //          getNextToken();
 518   //          counter++;
 519   //        } else if (token == TokenNameRBRACE) {
 520   //          getNextToken();
 521   //          --counter;
 522   //          if (counter == 0 && goBack) {
 523   //            return;
 524   //          }
 525   //        } else if (token == TokenNamerequire || token == TokenNamerequire_once
 526   //            || token == TokenNameinclude || token == TokenNameinclude_once) {
 527   //          ident = scanner.getCurrentTokenSource();
 528   //          getNextToken();
 529   //          int startPosition = scanner.getCurrentTokenStartPosition();
 530   //          expr();
 531   //          char[] expr = scanner.getCurrentTokenSource(startPosition);
 532   //          outlineInfo.addVariable(new String(ident));
 533   //          current.add(new PHPReqIncDeclaration(current, new String(ident),
 534   //          // chIndx - ident.length,
 535   //              startPosition, new String(expr)));
 536   //          getNextToken();
 537   //        } else {
 538   //          getNextToken();
 539   //        }
 540   //      }
 541   //    } catch (SyntaxError sytaxErr) {
 542   //      // try {
 543   //      // // setMarker(sytaxErr.getMessage(), sytaxErr.getLine(), ERROR);
 544   //      // setMarker(sytaxErr.getMessage(),
 545   //      // scanner.getCurrentTokenStartPosition(),
 546   //      // scanner.getCurrentTokenEndPosition(), ERROR);
 547   //      // } catch (CoreException e) {
 548   //      // }
 549   //    }
 550   //  }
 551   private void statementList() {
 552     do {
 553       statement(TokenNameEOF);
 554       if ((token == TokenNameRBRACE) || (token == TokenNamecase) || (token == TokenNamedefault) || (token == TokenNameelse)
 555           || (token == TokenNameelseif) || (token == TokenNameendif) || (token == TokenNameendfor)
 556           || (token == TokenNameendforeach) || (token == TokenNameendwhile) || (token == TokenNameendswitch)
 557           || (token == TokenNameEOF) || (token == TokenNameERROR)) {
 558         return;
 559       }
 560     } while (true);
 561   }
 562   private void functionBody(MethodDeclaration methodDecl) {
 563     // '{' [statement-list] '}'
 564     if (token == TokenNameLBRACE) {
 565       getNextToken();
 566     } else {
 567       throwSyntaxError("'{' expected in compound-statement.");
 568     }
 569     if (token != TokenNameRBRACE) {
 570       statementList();
 571     }
 572     if (token == TokenNameRBRACE) {
 573       methodDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
 574       getNextToken();
 575     } else {
 576       throwSyntaxError("'}' expected in compound-statement.");
 577     }
 578   }
 579   private void statement(int previousToken) {
 580     //   if (token > TokenNameKEYWORD && token != TokenNamelist && token !=
 581     // TokenNamenew) {
 582     //  char[] ident = scanner.getCurrentIdentifierSource();
 583     //  String keyword = new String(ident);
 584     //    if (token == TokenNameAT) {
 585     //      getNextToken();
 586     //      if (token != TokenNamerequire && token != TokenNamerequire_once
 587     //          && token != TokenNameinclude && token != TokenNameinclude_once
 588     //          && token != TokenNameIdentifier && token != TokenNameVariable
 589     //          && token != TokenNameStringInterpolated) {
 590     //        throwSyntaxError("identifier expected after '@'.");
 591     //      }
 592     //    }
 593     //    if (token == TokenNameinclude || token == TokenNameinclude_once) {
 594     //      getNextToken();
 595     //      if (token == TokenNameLPAREN) {
 596     //        expr();
 597     //        if (token == TokenNameSEMICOLON) {
 598     //          getNextToken();
 599     //        } else {
 600     //          if (previousToken != TokenNameAT && token != TokenNameStopPHP) {
 601     //            throwSyntaxError("';' expected after 'include' or 'include_once'.");
 602     //          }
 603     //          // getNextToken();
 604     //        }
 605     //      } else {
 606     //        concatenationExpression();
 607     //      }
 608     //      return;
 609     //    } else if (token == TokenNamerequire || token ==
 610     // TokenNamerequire_once)
 611     // {
 612     //      getNextToken();
 613     //      //constant();
 614     //      if (token == TokenNameLPAREN) {
 615     //        expr();
 616     //        if (token == TokenNameSEMICOLON) {
 617     //          getNextToken();
 618     //        } else {
 619     //          if (previousToken != TokenNameAT && token != TokenNameStopPHP) {
 620     //            throwSyntaxError("';' expected after 'require' or 'require_once'.");
 621     //          }
 622     //          // getNextToken();
 623     //        }
 624     //      } else {
 625     //        concatenationExpression();
 626     //      }
 627     //      return;
 628     //    } else
 629     if (token == TokenNameif) {
 630       getNextToken();
 631       if (token == TokenNameLPAREN) {
 632         getNextToken();
 633       } else {
 634         throwSyntaxError("'(' expected after 'if' keyword.");
 635       }
 636       expr();
 637       if (token == TokenNameRPAREN) {
 638         getNextToken();
 639       } else {
 640         throwSyntaxError("')' expected after 'if' condition.");
 641       }
 642       ifStatement();
 643       return;
 644     } else if (token == TokenNameswitch) {
 645       getNextToken();
 646       if (token == TokenNameLPAREN) {
 647         getNextToken();
 648       } else {
 649         throwSyntaxError("'(' expected after 'switch' keyword.");
 650       }
 651       expr();
 652       if (token == TokenNameRPAREN) {
 653         getNextToken();
 654       } else {
 655         throwSyntaxError("')' expected after 'switch' condition.");
 656       }
 657       switchStatement();
 658       return;
 659     } else if (token == TokenNamefor) {
 660       getNextToken();
 661       if (token == TokenNameLPAREN) {
 662         getNextToken();
 663       } else {
 664         throwSyntaxError("'(' expected after 'for' keyword.");
 665       }
 666       if (token == TokenNameSEMICOLON) {
 667         getNextToken();
 668       } else {
 669         expressionList();
 670         if (token == TokenNameSEMICOLON) {
 671           getNextToken();
 672         } else {
 673           throwSyntaxError("';' expected after 'for'.");
 674         }
 675       }
 676       if (token == TokenNameSEMICOLON) {
 677         getNextToken();
 678       } else {
 679         expressionList();
 680         if (token == TokenNameSEMICOLON) {
 681           getNextToken();
 682         } else {
 683           throwSyntaxError("';' expected after 'for'.");
 684         }
 685       }
 686       if (token == TokenNameRPAREN) {
 687         getNextToken();
 688       } else {
 689         expressionList();
 690         if (token == TokenNameRPAREN) {
 691           getNextToken();
 692         } else {
 693           throwSyntaxError("')' expected after 'for'.");
 694         }
 695       }
 696       forStatement();
 697       return;
 698     } else if (token == TokenNamewhile) {
 699       getNextToken();
 700       if (token == TokenNameLPAREN) {
 701         getNextToken();
 702       } else {
 703         throwSyntaxError("'(' expected after 'while' keyword.");
 704       }
 705       expr();
 706       if (token == TokenNameRPAREN) {
 707         getNextToken();
 708       } else {
 709         throwSyntaxError("')' expected after 'while' condition.");
 710       }
 711       whileStatement();
 712       return;
 713     } else if (token == TokenNamedo) {
 714       getNextToken();
 715       if (token == TokenNameLBRACE) {
 716         getNextToken();
 717         if (token != TokenNameRBRACE) {
 718           statementList();
 719         }
 720         if (token == TokenNameRBRACE) {
 721           getNextToken();
 722         } else {
 723           throwSyntaxError("'}' expected after 'do' keyword.");
 724         }
 725       } else {
 726         statement(TokenNameEOF);
 727       }
 728       if (token == TokenNamewhile) {
 729         getNextToken();
 730         if (token == TokenNameLPAREN) {
 731           getNextToken();
 732         } else {
 733           throwSyntaxError("'(' expected after 'while' keyword.");
 734         }
 735         expr();
 736         if (token == TokenNameRPAREN) {
 737           getNextToken();
 738         } else {
 739           throwSyntaxError("')' expected after 'while' condition.");
 740         }
 741       } else {
 742         throwSyntaxError("'while' expected after 'do' keyword.");
 743       }
 744       if (token == TokenNameSEMICOLON) {
 745         getNextToken();
 746       } else {
 747         if (token != TokenNameINLINE_HTML) {
 748           throwSyntaxError("';' expected after do-while statement.");
 749         }
 750         getNextToken();
 751       }
 752       return;
 753     } else if (token == TokenNameforeach) {
 754       getNextToken();
 755       if (token == TokenNameLPAREN) {
 756         getNextToken();
 757       } else {
 758         throwSyntaxError("'(' expected after 'foreach' keyword.");
 759       }
 760       expr();
 761       if (token == TokenNameas) {
 762         getNextToken();
 763       } else {
 764         throwSyntaxError("'as' expected after 'foreach' exxpression.");
 765       }
 766       //      variable();
 767       foreach_variable();
 768       foreach_optional_arg();
 769       if (token == TokenNameEQUAL_GREATER) {
 770         getNextToken();
 771         variable();
 772       }
 773       if (token == TokenNameRPAREN) {
 774         getNextToken();
 775       } else {
 776         throwSyntaxError("')' expected after 'foreach' expression.");
 777       }
 778       foreachStatement();
 779       return;
 780     } else if (token == TokenNamecontinue || token == TokenNamebreak || token == TokenNamereturn) {
 781       getNextToken();
 782       if (token != TokenNameSEMICOLON) {
 783         expr();
 784       }
 785       if (token == TokenNameSEMICOLON) {
 786         getNextToken();
 787       } else {
 788         if (token != TokenNameINLINE_HTML) {
 789           throwSyntaxError("';' expected after 'continue', 'break' or 'return'.");
 790         }
 791         getNextToken();
 792       }
 793       return;
 794     } else if (token == TokenNameecho) {
 795       getNextToken();
 796       expressionList();
 797       if (token == TokenNameSEMICOLON) {
 798         getNextToken();
 799       } else {
 800         if (token != TokenNameINLINE_HTML) {
 801           throwSyntaxError("';' expected after 'echo' statement.");
 802         }
 803         getNextToken();
 804       }
 805       return;
 806     } else if (token == TokenNameINLINE_HTML) {
 807       getNextToken();
 808       return;
 809       //    } else if (token == TokenNameprint) {
 810       //      getNextToken();
 811       //      expression();
 812       //      if (token == TokenNameSEMICOLON) {
 813       //        getNextToken();
 814       //      } else {
 815       //        if (token != TokenNameStopPHP) {
 816       //          throwSyntaxError("';' expected after 'print' statement.");
 817       //        }
 818       //        getNextToken();
 819       //      }
 820       //      return;
 821     } else if (token == TokenNameglobal) {
 822       getNextToken();
 823       global_var_list();
 824       if (token == TokenNameSEMICOLON) {
 825         getNextToken();
 826       } else {
 827         if (token != TokenNameINLINE_HTML) {
 828           throwSyntaxError("';' expected after 'global' statement.");
 829         }
 830         getNextToken();
 831       }
 832       return;
 833     } else if (token == TokenNamestatic) {
 834       getNextToken();
 835       static_var_list();
 836       if (token == TokenNameSEMICOLON) {
 837         getNextToken();
 838       } else {
 839         if (token != TokenNameINLINE_HTML) {
 840           throwSyntaxError("';' expected after 'static' statement.");
 841         }
 842         getNextToken();
 843       }
 844       return;
 845     } else if (token == TokenNameunset) {
 846       getNextToken();
 847       if (token == TokenNameLPAREN) {
 848         getNextToken();
 849       } else {
 850         throwSyntaxError("'(' expected after 'unset' statement.");
 851       }
 852       unset_variables();
 853       if (token == TokenNameRPAREN) {
 854         getNextToken();
 855       } else {
 856         throwSyntaxError("')' expected after 'unset' statement.");
 857       }
 858       if (token == TokenNameSEMICOLON) {
 859         getNextToken();
 860       } else {
 861         if (token != TokenNameINLINE_HTML) {
 862           throwSyntaxError("';' expected after 'unset' statement.");
 863         }
 864         getNextToken();
 865       }
 866       return;
 867     } else if (token == TokenNamefunction) {
 868       MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
 869       methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
 870       methodDecl.modifiers = AccDefault;
 871       getNextToken();
 872       functionDefinition(methodDecl);
 873       return;
 874     } else if (token == TokenNametry) {
 875       getNextToken();
 876       if (token != TokenNameLBRACE) {
 877         throwSyntaxError("'{' expected in 'try' statement.");
 878       }
 879       getNextToken();
 880       statementList();
 881       if (token != TokenNameRBRACE) {
 882         throwSyntaxError("'}' expected in 'try' statement.");
 883       }
 884       getNextToken();
 885       return;
 886     } else if (token == TokenNamecatch) {
 887       getNextToken();
 888       if (token != TokenNameLPAREN) {
 889         throwSyntaxError("'(' expected in 'catch' statement.");
 890       }
 891       getNextToken();
 892       fully_qualified_class_name();
 893       if (token != TokenNameVariable) {
 894         throwSyntaxError("Variable expected in 'catch' statement.");
 895       }
 896       getNextToken();
 897       if (token != TokenNameRPAREN) {
 898         throwSyntaxError("')' expected in 'catch' statement.");
 899       }
 900       getNextToken();
 901       if (token != TokenNameLBRACE) {
 902         throwSyntaxError("'{' expected in 'catch' statement.");
 903       }
 904       getNextToken();
 905       if (token != TokenNameRBRACE) {
 906         statementList();
 907         if (token != TokenNameRBRACE) {
 908           throwSyntaxError("'}' expected in 'catch' statement.");
 909         }
 910       }
 911       getNextToken();
 912       additional_catches();
 913       return;
 914     } else if (token == TokenNamethrow) {
 915       getNextToken();
 916       expr();
 917       if (token == TokenNameSEMICOLON) {
 918         getNextToken();
 919       } else {
 920         throwSyntaxError("';' expected after 'throw' exxpression.");
 921       }
 922       return;
 923     } else if (token == TokenNamefinal || token == TokenNameabstract || token == TokenNameclass || token == TokenNameinterface) {
 924       TypeDeclaration typeDecl = new TypeDeclaration(this.compilationUnit.compilationResult);
 925       typeDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
 926       typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
 927       typeDecl.name = new char[]{' '};
 928       // default super class
 929       typeDecl.superclass = new SingleTypeReference(TypeConstants.OBJECT, 0);
 930       compilationUnit.types.add(typeDecl);
 931       try {
 932         pushOnAstStack(typeDecl);
 933         unticked_class_declaration_statement(typeDecl);
 934         //        classBody(typeDecl);
 935       } finally {
 936         astPtr--;
 937         astLengthPtr--;
 938       }
 939       return;
 940       //      } else {
 941       //        throwSyntaxError("Unexpected keyword '" + keyword + "'");
 942     } else if (token == TokenNameLBRACE) {
 943       getNextToken();
 944       if (token != TokenNameRBRACE) {
 945         statementList();
 946       }
 947       if (token == TokenNameRBRACE) {
 948         getNextToken();
 949         return;
 950       } else {
 951         throwSyntaxError("'}' expected.");
 952       }
 953     } else {
 954       if (token != TokenNameSEMICOLON) {
 955         expr();
 956       }
 957       if (token == TokenNameSEMICOLON) {
 958         getNextToken();
 959         return;
 960       } else {
 961         if (token != TokenNameINLINE_HTML && token != TokenNameEOF) {
 962           throwSyntaxError("';' expected after expression (Found token: " + scanner.toStringAction(token) + ")");
 963         }
 964         getNextToken();
 965       }
 966     }
 967   }
 968   private void additional_catches() {
 969     while (token == TokenNamecatch) {
 970       getNextToken();
 971       if (token != TokenNameLPAREN) {
 972         throwSyntaxError("'(' expected in 'catch' statement.");
 973       }
 974       getNextToken();
 975       fully_qualified_class_name();
 976       if (token != TokenNameVariable) {
 977         throwSyntaxError("Variable expected in 'catch' statement.");
 978       }
 979       getNextToken();
 980       if (token != TokenNameRPAREN) {
 981         throwSyntaxError("')' expected in 'catch' statement.");
 982       }
 983       getNextToken();
 984       if (token != TokenNameLBRACE) {
 985         throwSyntaxError("'{' expected in 'catch' statement.");
 986       }
 987       getNextToken();
 988       statementList();
 989       if (token != TokenNameRBRACE) {
 990         throwSyntaxError("'}' expected in 'catch' statement.");
 991       }
 992       getNextToken();
 993     }
 994   }
 995   private void foreach_variable() {
 996     //  w_variable
 997     //| '&' w_variable
 998     if (token == TokenNameAND) {
 999       getNextToken();
1000     }
1001     w_variable();
1002   }
1003   private void foreach_optional_arg() {
1004     //  /* empty */
1005     //| T_DOUBLE_ARROW foreach_variable
1006     if (token == TokenNameEQUAL_GREATER) {
1007       getNextToken();
1008       foreach_variable();
1009     }
1010   }
1011   private void global_var_list() {
1012     //  global_var_list:
1013     //  global_var_list ',' global_var
1014     //| global_var
1015     while (true) {
1016       global_var();
1017       if (token != TokenNameCOMMA) {
1018         break;
1019       }
1020       getNextToken();
1021     }
1022   }
1023   private void global_var() {
1024     //global_var:
1025     //  T_VARIABLE
1026     //| '$' r_variable
1027     //| '$' '{' expr '}'
1028     if (token == TokenNameVariable) {
1029       getNextToken();
1030     } else if (token == TokenNameDOLLAR) {
1031       getNextToken();
1032       if (token == TokenNameLPAREN) {
1033         getNextToken();
1034         expr();
1035         if (token != TokenNameLPAREN) {
1036           throwSyntaxError("')' expected in global variable.");
1037         }
1038         getNextToken();
1039       } else {
1040         r_variable();
1041       }
1042     }
1043   }
1044   private void static_var_list() {
1045     //static_var_list:
1046     //  static_var_list ',' T_VARIABLE
1047     //| static_var_list ',' T_VARIABLE '=' static_scalar
1048     //| T_VARIABLE
1049     //| T_VARIABLE '=' static_scalar
1050     while (true) {
1051       if (token == TokenNameVariable) {
1052         getNextToken();
1053         if (token == TokenNameEQUAL) {
1054           getNextToken();
1055           static_scalar();
1056         }
1057         if (token != TokenNameCOMMA) {
1058           break;
1059         }
1060         getNextToken();
1061       } else {
1062         break;
1063       }
1064     }
1065   }
1066   private void unset_variables() {
1067     //    unset_variables:
1068     //                  unset_variable
1069     //          | unset_variables ',' unset_variable
1070     //    unset_variable:
1071     //                  variable
1072     while (true) {
1073       variable();
1074       if (token != TokenNameCOMMA) {
1075         break;
1076       }
1077       getNextToken();
1078     }
1079   }
1080   private final void initializeModifiers() {
1081     this.modifiers = 0;
1082     this.modifiersSourceStart = -1;
1083   }
1084   private final void checkAndSetModifiers(int flag) {
1085     this.modifiers |= flag;
1086     if (this.modifiersSourceStart < 0)
1087       this.modifiersSourceStart = this.scanner.startPosition;
1088   }
1089   private void unticked_class_declaration_statement(TypeDeclaration typeDecl) {
1090     initializeModifiers();
1091     if (token == TokenNameinterface) {
1092       //      interface_entry T_STRING
1093       //                interface_extends_list
1094       //                '{' class_statement_list '}'
1095       checkAndSetModifiers(AccInterface);
1096       getNextToken();
1097       typeDecl.modifiers = this.modifiers;
1098       typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
1099       typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
1100       if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
1101         typeDecl.name = scanner.getCurrentIdentifierSource();
1102         if (token > TokenNameKEYWORD) {
1103           problemReporter.phpKeywordWarning(new String[]{scanner.toStringAction(token)}, scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(),
1104               referenceContext, compilationUnit.compilationResult);
1105 //          throwSyntaxError("Don't use a keyword for interface declaration [" + scanner.toStringAction(token) + "].",
1106 //              typeDecl.sourceStart, typeDecl.sourceEnd);
1107         }
1108         getNextToken();
1109         interface_extends_list();
1110       } else {
1111         typeDecl.name = new char[]{' '};
1112         throwSyntaxError("Interface name expected after keyword 'interface'.", typeDecl.sourceStart, typeDecl.sourceEnd);
1113         return;
1114       }
1115     } else {
1116       //      class_entry_type T_STRING extends_from
1117       //                implements_list
1118       //                '{' class_statement_list'}'
1119       class_entry_type();
1120       typeDecl.modifiers = this.modifiers;
1121       typeDecl.sourceStart = scanner.getCurrentTokenStartPosition();
1122       typeDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
1123       //identifier
1124       //identifier 'extends' identifier
1125       if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
1126         typeDecl.name = scanner.getCurrentIdentifierSource();
1127         if (token > TokenNameKEYWORD) {
1128           problemReporter.phpKeywordWarning(new String[]{scanner.toStringAction(token)}, scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(),
1129               referenceContext, compilationUnit.compilationResult);
1130 //          throwSyntaxError("Don't use a keyword for class declaration [" + scanner.toStringAction(token) + "].",
1131 //              typeDecl.sourceStart, typeDecl.sourceEnd);
1132         }
1133         getNextToken();
1134         //    extends_from:
1135         //              /* empty */
1136         //      | T_EXTENDS fully_qualified_class_name
1137         if (token == TokenNameextends) {
1138           interface_extends_list();
1139           //          getNextToken();
1140           //          if (token != TokenNameIdentifier) {
1141           //            throwSyntaxError("Class name expected after keyword
1142           // 'extends'.",
1143           //                scanner.getCurrentTokenStartPosition(), scanner
1144           //                    .getCurrentTokenEndPosition());
1145           //          }
1146         }
1147         implements_list();
1148       } else {
1149         typeDecl.name = new char[]{' '};
1150         throwSyntaxError("Class name expected after keyword 'class'.", typeDecl.sourceStart, typeDecl.sourceEnd);
1151         return;
1152       }
1153     }
1154     //  '{' class_statement_list '}'
1155     if (token == TokenNameLBRACE) {
1156       getNextToken();
1157       if (token != TokenNameRBRACE) {
1158         ArrayList list = new ArrayList();
1159         class_statement_list(list);
1160         typeDecl.fields = new FieldDeclaration[list.size()];
1161         for (int i = 0; i < list.size(); i++) {
1162           typeDecl.fields[i] = (FieldDeclaration) list.get(i);
1163         }
1164       }
1165       if (token == TokenNameRBRACE) {
1166         typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
1167         getNextToken();
1168       } else {
1169         throwSyntaxError("'}' expected at end of class body.");
1170       }
1171     } else {
1172       throwSyntaxError("'{' expected at start of class body.");
1173     }
1174   }
1175   private void class_entry_type() {
1176     //  T_CLASS
1177     //  | T_ABSTRACT T_CLASS
1178     //  | T_FINAL T_CLASS
1179     if (token == TokenNameclass) {
1180       getNextToken();
1181     } else if (token == TokenNameabstract) {
1182       checkAndSetModifiers(AccAbstract);
1183       getNextToken();
1184       if (token != TokenNameclass) {
1185         throwSyntaxError("Keyword 'class' expected after keyword 'abstract'.");
1186       }
1187       getNextToken();
1188     } else if (token == TokenNamefinal) {
1189       checkAndSetModifiers(AccFinal);
1190       getNextToken();
1191       if (token != TokenNameclass) {
1192         throwSyntaxError("Keyword 'class' expected after keyword 'final'.");
1193       }
1194       getNextToken();
1195     } else {
1196       throwSyntaxError("Keyword 'class' 'final' or 'abstract' expected");
1197     }
1198   }
1199   private void interface_extends_list() {
1200     //  /* empty */
1201     //  | T_EXTENDS interface_list
1202     if (token == TokenNameextends) {
1203       getNextToken();
1204       interface_list();
1205     }
1206   }
1207   private void implements_list() {
1208     //  /* empty */
1209     //  | T_IMPLEMENTS interface_list
1210     if (token == TokenNameimplements) {
1211       getNextToken();
1212       interface_list();
1213     }
1214   }
1215   private void interface_list() {
1216     //  interface_list:
1217     //  fully_qualified_class_name
1218     //| interface_list ',' fully_qualified_class_name
1219     do {
1220       if (token == TokenNameIdentifier) {
1221         getNextToken();
1222       } else {
1223         throwSyntaxError("Interface name expected after keyword 'implements'.");
1224       }
1225       if (token != TokenNameCOMMA) {
1226         return;
1227       }
1228       getNextToken();
1229     } while (true);
1230   }
1231   //  private void classBody(TypeDeclaration typeDecl) {
1232   //    //'{' [class-element-list] '}'
1233   //    if (token == TokenNameLBRACE) {
1234   //      getNextToken();
1235   //      if (token != TokenNameRBRACE) {
1236   //        class_statement_list();
1237   //      }
1238   //      if (token == TokenNameRBRACE) {
1239   //        typeDecl.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
1240   //        getNextToken();
1241   //      } else {
1242   //        throwSyntaxError("'}' expected at end of class body.");
1243   //      }
1244   //    } else {
1245   //      throwSyntaxError("'{' expected at start of class body.");
1246   //    }
1247   //  }
1248   private void class_statement_list(ArrayList list) {
1249     do {
1250       class_statement(list);
1251     } while (token == TokenNamepublic || token == TokenNameprotected || token == TokenNameprivate || token == TokenNamestatic
1252         || token == TokenNameabstract || token == TokenNamefinal || token == TokenNamefunction || token == TokenNamevar
1253         || token == TokenNameconst);
1254   }
1255   private void class_statement(ArrayList list) {
1256     //    class_statement:
1257     //          variable_modifiers class_variable_declaration ';'
1258     //  | class_constant_declaration ';'
1259     //  | method_modifiers T_FUNCTION is_reference T_STRING
1260     //    '(' parameter_list ')' method_body
1261     initializeModifiers();
1262     int declarationSourceStart = scanner.getCurrentTokenStartPosition();
1263
1264     if (token == TokenNamevar) {
1265       checkAndSetModifiers(AccPublic);
1266       problemReporter.phpVarDeprecatedWarning(scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(),
1267           referenceContext, compilationUnit.compilationResult);
1268       getNextToken();
1269       class_variable_declaration(declarationSourceStart, list);
1270     } else if (token == TokenNameconst) {
1271       checkAndSetModifiers(AccFinal|AccPublic);
1272       class_constant_declaration(declarationSourceStart, list);
1273       if (token != TokenNameSEMICOLON) {
1274         throwSyntaxError("';' expected after class const declaration.");
1275       }
1276       getNextToken();
1277     } else {
1278       boolean hasModifiers = member_modifiers();
1279       if (token == TokenNamefunction) {
1280         if (!hasModifiers) {
1281           checkAndSetModifiers(AccPublic);
1282         }
1283         MethodDeclaration methodDecl = new MethodDeclaration(this.compilationUnit.compilationResult);
1284         methodDecl.declarationSourceStart = scanner.getCurrentTokenStartPosition();
1285         methodDecl.modifiers = this.modifiers;
1286         getNextToken();
1287         functionDefinition(methodDecl);
1288       } else {
1289         if (!hasModifiers) {
1290           throwSyntaxError("'public' 'private' or 'protected' modifier expected for field declarations.");
1291         }
1292         class_variable_declaration(declarationSourceStart, list);
1293       }
1294     }
1295   }
1296   private void class_constant_declaration(int declarationSourceStart, ArrayList list) {
1297     //  class_constant_declaration ',' T_STRING '=' static_scalar
1298     //  | T_CONST T_STRING '=' static_scalar
1299     if (token != TokenNameconst) {
1300       throwSyntaxError("'const' keyword expected in class declaration.");
1301     } else {
1302       getNextToken();
1303     }
1304     while (true) {
1305       if (token != TokenNameIdentifier) {
1306         throwSyntaxError("Identifier expected in class const declaration.");
1307       }
1308       FieldDeclaration fieldDeclaration = new FieldDeclaration(scanner.getCurrentIdentifierSource(), scanner
1309           .getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition());
1310       fieldDeclaration.modifiers = this.modifiers;
1311       fieldDeclaration.declarationSourceStart = declarationSourceStart;
1312       fieldDeclaration.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
1313       fieldDeclaration.modifiersSourceStart = declarationSourceStart;
1314       //        fieldDeclaration.type
1315       list.add(fieldDeclaration);
1316       getNextToken();
1317       if (token != TokenNameEQUAL) {
1318         throwSyntaxError("'=' expected in class const declaration.");
1319       }
1320       getNextToken();
1321       static_scalar();
1322       if (token != TokenNameCOMMA) {
1323         break; // while(true)-loop
1324       }
1325       getNextToken();
1326     }
1327   }
1328   //  private void variable_modifiers() {
1329   //    // variable_modifiers:
1330   //    // non_empty_member_modifiers
1331   //    //| T_VAR
1332   //    initializeModifiers();
1333   //    if (token == TokenNamevar) {
1334   //      checkAndSetModifiers(AccPublic);
1335   //      reportSyntaxError(
1336   //          "Keyword 'var' is deprecated. Please use 'public' 'private' or
1337   // 'protected'
1338   // modifier for field declarations.",
1339   //          scanner.getCurrentTokenStartPosition(), scanner
1340   //              .getCurrentTokenEndPosition());
1341   //      getNextToken();
1342   //    } else {
1343   //      if (!member_modifiers()) {
1344   //        throwSyntaxError("'public' 'private' or 'protected' modifier expected for
1345   // field declarations.");
1346   //      }
1347   //    }
1348   //  }
1349   //  private void method_modifiers() {
1350   //    //method_modifiers:
1351   //    // /* empty */
1352   //    //| non_empty_member_modifiers
1353   //    initializeModifiers();
1354   //    if (!member_modifiers()) {
1355   //      checkAndSetModifiers(AccPublic);
1356   //    }
1357   //  }
1358   private boolean member_modifiers() {
1359     //  T_PUBLIC
1360     //| T_PROTECTED
1361     //| T_PRIVATE
1362     //| T_STATIC
1363     //| T_ABSTRACT
1364     //| T_FINAL
1365     boolean foundToken = false;
1366     while (true) {
1367       if (token == TokenNamepublic) {
1368         checkAndSetModifiers(AccPublic);
1369         getNextToken();
1370         foundToken = true;
1371       } else if (token == TokenNameprotected) {
1372         checkAndSetModifiers(AccProtected);
1373         getNextToken();
1374         foundToken = true;
1375       } else if (token == TokenNameprivate) {
1376         checkAndSetModifiers(AccPrivate);
1377         getNextToken();
1378         foundToken = true;
1379       } else if (token == TokenNamestatic) {
1380         checkAndSetModifiers(AccStatic);
1381         getNextToken();
1382         foundToken = true;
1383       } else if (token == TokenNameabstract) {
1384         checkAndSetModifiers(AccAbstract);
1385         getNextToken();
1386         foundToken = true;
1387       } else if (token == TokenNamefinal) {
1388         checkAndSetModifiers(AccFinal);
1389         getNextToken();
1390         foundToken = true;
1391       } else {
1392         break;
1393       }
1394     }
1395     return foundToken;
1396   }
1397   private void class_variable_declaration(int declarationSourceStart, ArrayList list) {
1398     //    class_variable_declaration:
1399     //          class_variable_declaration ',' T_VARIABLE
1400     //  | class_variable_declaration ',' T_VARIABLE '=' static_scalar
1401     //  | T_VARIABLE
1402     //  | T_VARIABLE '=' static_scalar
1403     char[] classVariable;
1404     do {
1405       if (token == TokenNameVariable) {
1406         classVariable = scanner.getCurrentIdentifierSource();
1407       //  indexManager.addIdentifierInformation('v', classVariable, buf, -1, -1);
1408         FieldDeclaration fieldDeclaration = new FieldDeclaration(classVariable, scanner
1409             .getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition());
1410         fieldDeclaration.modifiers = this.modifiers;
1411         fieldDeclaration.declarationSourceStart = declarationSourceStart;
1412         fieldDeclaration.declarationSourceEnd = scanner.getCurrentTokenEndPosition();
1413         fieldDeclaration.modifiersSourceStart = declarationSourceStart;
1414         //        fieldDeclaration.type
1415         list.add(fieldDeclaration);
1416         getNextToken();
1417         if (token == TokenNameEQUAL) {
1418           getNextToken();
1419           static_scalar();
1420         }
1421       } else {
1422         //        if (token == TokenNamethis) {
1423         //          throwSyntaxError("'$this' not allowed after keyword 'public'
1424         // 'protected' 'private' 'var'.");
1425         //        }
1426         throwSyntaxError("Variable expected after keyword 'public' 'protected' 'private' 'var'.");
1427       }
1428       if (token != TokenNameCOMMA) {
1429         break;
1430       }
1431       getNextToken();
1432     } while (true);
1433     if (token != TokenNameSEMICOLON) {
1434       throwSyntaxError("';' expected after field declaration.");
1435     }
1436     getNextToken();
1437   }
1438   private void functionDefinition(MethodDeclaration methodDecl) {
1439     boolean isAbstract = false;
1440     if (astPtr == 0) {
1441       compilationUnit.types.add(methodDecl);
1442     } else {
1443       AstNode node = astStack[astPtr];
1444       if (node instanceof TypeDeclaration) {
1445         TypeDeclaration typeDecl = ((TypeDeclaration) node);
1446         if (typeDecl.methods == null) {
1447           typeDecl.methods = new AbstractMethodDeclaration[]{methodDecl};
1448         } else {
1449           AbstractMethodDeclaration[] newMethods;
1450           System.arraycopy(typeDecl.methods, 0, newMethods = new AbstractMethodDeclaration[typeDecl.methods.length + 1], 1,
1451               typeDecl.methods.length);
1452           newMethods[0] = methodDecl;
1453           typeDecl.methods = newMethods;
1454         }
1455         if ((typeDecl.modifiers & AccAbstract) == AccAbstract) {
1456           isAbstract = true;
1457         } else if ((typeDecl.modifiers & AccInterface) == AccInterface) {
1458           isAbstract = true;
1459         }
1460       }
1461     }
1462     functionDeclarator(methodDecl);
1463     if (token == TokenNameSEMICOLON) {
1464       if (!isAbstract) {
1465         throwSyntaxError("Body declaration expected for method: " + new String(methodDecl.selector));
1466       }
1467       getNextToken();
1468       return;
1469     }
1470     functionBody(methodDecl);
1471   }
1472   private void functionDeclarator(MethodDeclaration methodDecl) {
1473     //identifier '(' [parameter-list] ')'
1474     if (token == TokenNameAND) {
1475       getNextToken();
1476     }
1477     methodDecl.sourceStart = scanner.getCurrentTokenStartPosition();
1478     methodDecl.sourceEnd = scanner.getCurrentTokenEndPosition();
1479     if (Scanner.isIdentifierOrKeyword(token)) {
1480       methodDecl.selector = scanner.getCurrentIdentifierSource();
1481       if (token > TokenNameKEYWORD) {
1482         problemReporter.phpKeywordWarning(new String[]{scanner.toStringAction(token)}, scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition(),
1483             referenceContext, compilationUnit.compilationResult);
1484 //        reportSyntaxWarning("Don't use keyword for function declaration [" + scanner.toStringAction(token) + "].",
1485 //          scanner.getCurrentTokenStartPosition(), scanner.getCurrentTokenEndPosition());
1486       }
1487       getNextToken();
1488       if (token == TokenNameLPAREN) {
1489         getNextToken();
1490       } else {
1491         throwSyntaxError("'(' expected in function declaration.");
1492       }
1493       if (token != TokenNameRPAREN) {
1494         parameter_list();
1495       }
1496       if (token != TokenNameRPAREN) {
1497         throwSyntaxError("')' expected in function declaration.");
1498       } else {
1499         methodDecl.bodyStart = scanner.getCurrentTokenEndPosition() + 1;
1500         getNextToken();
1501       }
1502     } else {
1503       methodDecl.selector = "<undefined>".toCharArray();
1504       throwSyntaxError("Function name expected after keyword 'function'.");
1505     }
1506   }
1507   //
1508   private void parameter_list() {
1509     //  non_empty_parameter_list
1510     //  | /* empty */
1511     non_empty_parameter_list(true);
1512   }
1513   private void non_empty_parameter_list(boolean empty_allowed) {
1514     //  optional_class_type T_VARIABLE
1515     //  | optional_class_type '&' T_VARIABLE
1516     //  | optional_class_type '&' T_VARIABLE '=' static_scalar
1517     //  | optional_class_type T_VARIABLE '=' static_scalar
1518     //  | non_empty_parameter_list ',' optional_class_type T_VARIABLE
1519     //  | non_empty_parameter_list ',' optional_class_type '&' T_VARIABLE
1520     //  | non_empty_parameter_list ',' optional_class_type '&' T_VARIABLE '='
1521     // static_scalar
1522     //  | non_empty_parameter_list ',' optional_class_type T_VARIABLE '='
1523     // static_scalar
1524     if (token == TokenNameIdentifier || token == TokenNameVariable || token == TokenNameAND) {
1525       while (true) {
1526         if (token == TokenNameIdentifier) {
1527           getNextToken();
1528         }
1529         if (token == TokenNameAND) {
1530           getNextToken();
1531         }
1532         if (token == TokenNameVariable) {
1533           getNextToken();
1534           if (token == TokenNameEQUAL) {
1535             getNextToken();
1536             static_scalar();
1537           }
1538         } else {
1539           throwSyntaxError("Variable expected in parameter list.");
1540         }
1541         if (token != TokenNameCOMMA) {
1542           break;
1543         }
1544         getNextToken();
1545       }
1546       return;
1547     }
1548     if (!empty_allowed) {
1549       throwSyntaxError("Identifier expected in parameter list.");
1550     }
1551   }
1552   private void optional_class_type() {
1553     //  /* empty */
1554     //| T_STRING
1555   }
1556   private void parameterDeclaration() {
1557     //variable
1558     //variable-reference
1559     if (token == TokenNameAND) {
1560       getNextToken();
1561       if (isVariable()) {
1562         getNextToken();
1563       } else {
1564         throwSyntaxError("Variable expected after reference operator '&'.");
1565       }
1566     }
1567     //variable '=' constant
1568     if (token == TokenNameVariable) {
1569       getNextToken();
1570       if (token == TokenNameEQUAL) {
1571         getNextToken();
1572         static_scalar();
1573       }
1574       return;
1575     }
1576     //    if (token == TokenNamethis) {
1577     //      throwSyntaxError("Reserved word '$this' not allowed in parameter
1578     // declaration.");
1579     //    }
1580   }
1581   private void labeledStatementList() {
1582     if (token != TokenNamecase && token != TokenNamedefault) {
1583       throwSyntaxError("'case' or 'default' expected.");
1584     }
1585     do {
1586       if (token == TokenNamecase) {
1587         getNextToken();
1588         expr(); //constant();
1589         if (token == TokenNameCOLON || token == TokenNameSEMICOLON) {
1590           getNextToken();
1591           if (token == TokenNamecase || token == TokenNamedefault) {
1592             // empty case statement ?
1593             continue;
1594           }
1595           statementList();
1596         }
1597         //        else if (token == TokenNameSEMICOLON) {
1598         //          setMarker(
1599         //            "':' expected after 'case' keyword (Found token: " +
1600         // scanner.toStringAction(token) + ")",
1601         //            scanner.getCurrentTokenStartPosition(),
1602         //            scanner.getCurrentTokenEndPosition(),
1603         //            INFO);
1604         //          getNextToken();
1605         //          if (token == TokenNamecase) { // empty case statement ?
1606         //            continue;
1607         //          }
1608         //          statementList();
1609         //        }
1610         else {
1611           throwSyntaxError("':' character expected after 'case' constant (Found token: " + scanner.toStringAction(token) + ")");
1612         }
1613       } else { // TokenNamedefault
1614         getNextToken();
1615         if (token == TokenNameCOLON) {
1616           getNextToken();
1617           if (token == TokenNameRBRACE) {
1618             // empty default case
1619             break;
1620           }
1621           if (token != TokenNamecase) {
1622             statementList();
1623           }
1624         } else {
1625           throwSyntaxError("':' character expected after 'default'.");
1626         }
1627       }
1628     } while (token == TokenNamecase || token == TokenNamedefault);
1629   }
1630   //  public void labeledStatement() {
1631   //    if (token == TokenNamecase) {
1632   //      getNextToken();
1633   //      constant();
1634   //      if (token == TokenNameDDOT) {
1635   //        getNextToken();
1636   //        statement();
1637   //      } else {
1638   //        throwSyntaxError("':' character after 'case' constant expected.");
1639   //      }
1640   //      return;
1641   //    } else if (token == TokenNamedefault) {
1642   //      getNextToken();
1643   //      if (token == TokenNameDDOT) {
1644   //        getNextToken();
1645   //        statement();
1646   //      } else {
1647   //        throwSyntaxError("':' character after 'default' expected.");
1648   //      }
1649   //      return;
1650   //    }
1651   //  }
1652   //  public void expressionStatement() {
1653   //  }
1654   //  private void inclusionStatement() {
1655   //  }
1656   //  public void compoundStatement() {
1657   //  }
1658   //  public void selectionStatement() {
1659   //  }
1660   //
1661   //  public void iterationStatement() {
1662   //  }
1663   //
1664   //  public void jumpStatement() {
1665   //  }
1666   //
1667   //  public void outputStatement() {
1668   //  }
1669   //
1670   //  public void scopeStatement() {
1671   //  }
1672   //
1673   //  public void flowStatement() {
1674   //  }
1675   //
1676   //  public void definitionStatement() {
1677   //  }
1678   private void ifStatement() {
1679     // ':' statement-list [elseif-list] [else-colon-statement] 'endif' ';'
1680     if (token == TokenNameCOLON) {
1681       getNextToken();
1682       if (token != TokenNameendif) {
1683         statementList();
1684         switch (token) {
1685           case TokenNameelse :
1686             getNextToken();
1687             if (token == TokenNameCOLON) {
1688               getNextToken();
1689               if (token != TokenNameendif) {
1690                 statementList();
1691               }
1692             } else {
1693               if (token == TokenNameif) { //'else if'
1694                 getNextToken();
1695                 elseifStatementList();
1696               } else {
1697                 throwSyntaxError("':' expected after 'else'.");
1698               }
1699             }
1700             break;
1701           case TokenNameelseif :
1702             getNextToken();
1703             elseifStatementList();
1704             break;
1705         }
1706       }
1707       if (token != TokenNameendif) {
1708         throwSyntaxError("'endif' expected.");
1709       }
1710       getNextToken();
1711       if (token != TokenNameSEMICOLON) {
1712         throwSyntaxError("';' expected after if-statement.");
1713       }
1714       getNextToken();
1715     } else {
1716       // statement [else-statement]
1717       statement(TokenNameEOF);
1718       if (token == TokenNameelseif) {
1719         getNextToken();
1720         if (token == TokenNameLPAREN) {
1721           getNextToken();
1722         } else {
1723           throwSyntaxError("'(' expected after 'elseif' keyword.");
1724         }
1725         expr();
1726         if (token == TokenNameRPAREN) {
1727           getNextToken();
1728         } else {
1729           throwSyntaxError("')' expected after 'elseif' condition.");
1730         }
1731         ifStatement();
1732       } else if (token == TokenNameelse) {
1733         getNextToken();
1734         statement(TokenNameEOF);
1735       }
1736     }
1737   }
1738   private void elseifStatementList() {
1739     do {
1740       elseifStatement();
1741       switch (token) {
1742         case TokenNameelse :
1743           getNextToken();
1744           if (token == TokenNameCOLON) {
1745             getNextToken();
1746             if (token != TokenNameendif) {
1747               statementList();
1748             }
1749             return;
1750           } else {
1751             if (token == TokenNameif) { //'else if'
1752               getNextToken();
1753             } else {
1754               throwSyntaxError("':' expected after 'else'.");
1755             }
1756           }
1757           break;
1758         case TokenNameelseif :
1759           getNextToken();
1760           break;
1761         default :
1762           return;
1763       }
1764     } while (true);
1765   }
1766   private void elseifStatement() {
1767     if (token == TokenNameLPAREN) {
1768       getNextToken();
1769       expr();
1770       if (token != TokenNameRPAREN) {
1771         throwSyntaxError("')' expected in else-if-statement.");
1772       }
1773       getNextToken();
1774       if (token != TokenNameCOLON) {
1775         throwSyntaxError("':' expected in else-if-statement.");
1776       }
1777       getNextToken();
1778       if (token != TokenNameendif) {
1779         statementList();
1780       }
1781     }
1782   }
1783   private void switchStatement() {
1784     if (token == TokenNameCOLON) {
1785       // ':' [labeled-statement-list] 'endswitch' ';'
1786       getNextToken();
1787       labeledStatementList();
1788       if (token != TokenNameendswitch) {
1789         throwSyntaxError("'endswitch' expected.");
1790       }
1791       getNextToken();
1792       if (token != TokenNameSEMICOLON) {
1793         throwSyntaxError("';' expected after switch-statement.");
1794       }
1795       getNextToken();
1796     } else {
1797       // '{' [labeled-statement-list] '}'
1798       if (token != TokenNameLBRACE) {
1799         throwSyntaxError("'{' expected in switch statement.");
1800       }
1801       getNextToken();
1802       if (token != TokenNameRBRACE) {
1803         labeledStatementList();
1804       }
1805       if (token != TokenNameRBRACE) {
1806         throwSyntaxError("'}' expected in switch statement.");
1807       }
1808       getNextToken();
1809     }
1810   }
1811   private void forStatement() {
1812     if (token == TokenNameCOLON) {
1813       getNextToken();
1814       statementList();
1815       if (token != TokenNameendfor) {
1816         throwSyntaxError("'endfor' expected.");
1817       }
1818       getNextToken();
1819       if (token != TokenNameSEMICOLON) {
1820         throwSyntaxError("';' expected after for-statement.");
1821       }
1822       getNextToken();
1823     } else {
1824       statement(TokenNameEOF);
1825     }
1826   }
1827   private void whileStatement() {
1828     // ':' statement-list 'endwhile' ';'
1829     if (token == TokenNameCOLON) {
1830       getNextToken();
1831       statementList();
1832       if (token != TokenNameendwhile) {
1833         throwSyntaxError("'endwhile' expected.");
1834       }
1835       getNextToken();
1836       if (token != TokenNameSEMICOLON) {
1837         throwSyntaxError("';' expected after while-statement.");
1838       }
1839       getNextToken();
1840     } else {
1841       statement(TokenNameEOF);
1842     }
1843   }
1844   private void foreachStatement() {
1845     if (token == TokenNameCOLON) {
1846       getNextToken();
1847       statementList();
1848       if (token != TokenNameendforeach) {
1849         throwSyntaxError("'endforeach' expected.");
1850       }
1851       getNextToken();
1852       if (token != TokenNameSEMICOLON) {
1853         throwSyntaxError("';' expected after foreach-statement.");
1854       }
1855       getNextToken();
1856     } else {
1857       statement(TokenNameEOF);
1858     }
1859   }
1860   //  private void exitStatus() {
1861   //    if (token == TokenNameLPAREN) {
1862   //      getNextToken();
1863   //    } else {
1864   //      throwSyntaxError("'(' expected in 'exit-status'.");
1865   //    }
1866   //    if (token != TokenNameRPAREN) {
1867   //      expression();
1868   //    }
1869   //    if (token == TokenNameRPAREN) {
1870   //      getNextToken();
1871   //    } else {
1872   //      throwSyntaxError("')' expected after 'exit-status'.");
1873   //    }
1874   //  }
1875   private void expressionList() {
1876     do {
1877       expr();
1878       if (token == TokenNameCOMMA) {
1879         getNextToken();
1880       } else {
1881         break;
1882       }
1883     } while (true);
1884   }
1885   private void expr() {
1886     //  r_variable
1887     //  | expr_without_variable
1888     //    if (token!=TokenNameEOF) {
1889     if (Scanner.TRACE) {
1890       System.out.println("TRACE: expr()");
1891     }
1892     expr_without_variable(true);
1893     //    }
1894   }
1895   private void expr_without_variable(boolean only_variable) {
1896     //          internal_functions_in_yacc
1897     //  | T_CLONE expr
1898     //  | T_PRINT expr
1899     //  | '(' expr ')'
1900     //  | '@' expr
1901     //  | '+' expr
1902     //  | '-' expr
1903     //  | '!' expr
1904     //  | '~' expr
1905     //  | T_INC rw_variable
1906     //  | T_DEC rw_variable
1907     //  | T_INT_CAST expr
1908     //  | T_DOUBLE_CAST expr
1909     //  | T_STRING_CAST expr
1910     //  | T_ARRAY_CAST expr
1911     //  | T_OBJECT_CAST expr
1912     //  | T_BOOL_CAST expr
1913     //  | T_UNSET_CAST expr
1914     //  | T_EXIT exit_expr
1915     //  | scalar
1916     //  | T_ARRAY '(' array_pair_list ')'
1917     //  | '`' encaps_list '`'
1918     //  | T_LIST '(' assignment_list ')' '=' expr
1919     //  | T_NEW class_name_reference ctor_arguments
1920     //  | variable '=' expr
1921     //  | variable '=' '&' variable
1922     //  | variable '=' '&' T_NEW class_name_reference ctor_arguments
1923     //  | variable T_PLUS_EQUAL expr
1924     //  | variable T_MINUS_EQUAL expr
1925     //  | variable T_MUL_EQUAL expr
1926     //  | variable T_DIV_EQUAL expr
1927     //  | variable T_CONCAT_EQUAL expr
1928     //  | variable T_MOD_EQUAL expr
1929     //  | variable T_AND_EQUAL expr
1930     //  | variable T_OR_EQUAL expr
1931     //  | variable T_XOR_EQUAL expr
1932     //  | variable T_SL_EQUAL expr
1933     //  | variable T_SR_EQUAL expr
1934     //  | rw_variable T_INC
1935     //  | rw_variable T_DEC
1936     //  | expr T_BOOLEAN_OR expr
1937     //  | expr T_BOOLEAN_AND expr
1938     //  | expr T_LOGICAL_OR expr
1939     //  | expr T_LOGICAL_AND expr
1940     //  | expr T_LOGICAL_XOR expr
1941     //  | expr '|' expr
1942     //  | expr '&' expr
1943     //  | expr '^' expr
1944     //  | expr '.' expr
1945     //  | expr '+' expr
1946     //  | expr '-' expr
1947     //  | expr '*' expr
1948     //  | expr '/' expr
1949     //  | expr '%' expr
1950     //  | expr T_SL expr
1951     //  | expr T_SR expr
1952     //  | expr T_IS_IDENTICAL expr
1953     //  | expr T_IS_NOT_IDENTICAL expr
1954     //  | expr T_IS_EQUAL expr
1955     //  | expr T_IS_NOT_EQUAL expr
1956     //  | expr '<' expr
1957     //  | expr T_IS_SMALLER_OR_EQUAL expr
1958     //  | expr '>' expr
1959     //  | expr T_IS_GREATER_OR_EQUAL expr
1960     //  | expr T_INSTANCEOF class_name_reference
1961     //  | expr '?' expr ':' expr
1962     if (Scanner.TRACE) {
1963       System.out.println("TRACE: expr_without_variable() PART 1");
1964     }
1965     switch (token) {
1966       case TokenNameisset :
1967       case TokenNameempty :
1968       case TokenNameeval :
1969       case TokenNameinclude :
1970       case TokenNameinclude_once :
1971       case TokenNamerequire :
1972       case TokenNamerequire_once :
1973         internal_functions_in_yacc();
1974         break;
1975       //        | '(' expr ')'
1976       case TokenNameLPAREN :
1977         getNextToken();
1978         expr();
1979         if (token == TokenNameRPAREN) {
1980           getNextToken();
1981         } else {
1982           throwSyntaxError("')' expected in expression.");
1983         }
1984         break;
1985       //    | T_CLONE expr
1986       //    | T_PRINT expr
1987       //    | '@' expr
1988       //    | '+' expr
1989       //    | '-' expr
1990       //    | '!' expr
1991       //    | '~' expr
1992       //    | T_INT_CAST expr
1993       //        | T_DOUBLE_CAST expr
1994       //        | T_STRING_CAST expr
1995       //        | T_ARRAY_CAST expr
1996       //        | T_OBJECT_CAST expr
1997       //        | T_BOOL_CAST expr
1998       //        | T_UNSET_CAST expr
1999       case TokenNameclone :
2000       case TokenNameprint :
2001       case TokenNameAT :
2002       case TokenNamePLUS :
2003       case TokenNameMINUS :
2004       case TokenNameNOT :
2005       case TokenNameTWIDDLE :
2006       case TokenNameintCAST :
2007       case TokenNamedoubleCAST :
2008       case TokenNamestringCAST :
2009       case TokenNamearrayCAST :
2010       case TokenNameobjectCAST :
2011       case TokenNameboolCAST :
2012       case TokenNameunsetCAST :
2013         getNextToken();
2014         expr();
2015         break;
2016       case TokenNameexit :
2017         getNextToken();
2018         exit_expr();
2019         break;
2020       //  scalar:
2021       //        T_STRING
2022       //| T_STRING_VARNAME
2023       //| class_constant
2024       //| T_START_HEREDOC encaps_list T_END_HEREDOC
2025       //        | '`' encaps_list '`'
2026       //  | common_scalar
2027       //        | '`' encaps_list '`'
2028       case TokenNameEncapsedString0 :
2029         scanner.encapsedStringStack.push(new Character('`'));
2030         getNextToken();
2031         try {
2032           if (token == TokenNameEncapsedString0) {
2033           } else {
2034             encaps_list();
2035             if (token != TokenNameEncapsedString0) {
2036               throwSyntaxError("\'`\' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
2037             }
2038           }
2039         } finally {
2040           scanner.encapsedStringStack.pop();
2041           getNextToken();
2042         }
2043         break;
2044       //      | '\'' encaps_list '\''
2045       case TokenNameEncapsedString1 :
2046         scanner.encapsedStringStack.push(new Character('\''));
2047         getNextToken();
2048         try {
2049           if (token == TokenNameEncapsedString1) {
2050           } else {
2051             encaps_list();
2052             if (token != TokenNameEncapsedString1) {
2053               throwSyntaxError("\'\'\' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
2054             }
2055           }
2056         } finally {
2057           scanner.encapsedStringStack.pop();
2058           getNextToken();
2059         }
2060         break;
2061       //| '"' encaps_list '"'
2062       case TokenNameEncapsedString2 :
2063         scanner.encapsedStringStack.push(new Character('"'));
2064         getNextToken();
2065         try {
2066           if (token == TokenNameEncapsedString2) {
2067           } else {
2068             encaps_list();
2069             if (token != TokenNameEncapsedString2) {
2070               throwSyntaxError("'\"' expected at end of string" + "(Found token: " + scanner.toStringAction(token) + " )");
2071             }
2072           }
2073         } finally {
2074           scanner.encapsedStringStack.pop();
2075           getNextToken();
2076         }
2077         break;
2078       case TokenNameIntegerLiteral :
2079       case TokenNameDoubleLiteral :
2080       case TokenNameStringDoubleQuote :
2081       case TokenNameStringSingleQuote :
2082       case TokenNameStringInterpolated :
2083       case TokenNameFILE :
2084       case TokenNameLINE :
2085       case TokenNameCLASS_C :
2086       case TokenNameMETHOD_C :
2087       case TokenNameFUNC_C :
2088         common_scalar();
2089         break;
2090       case TokenNameHEREDOC :
2091         getNextToken();
2092         break;
2093       case TokenNamearray :
2094         //    T_ARRAY '(' array_pair_list ')'
2095         getNextToken();
2096         if (token == TokenNameLPAREN) {
2097           getNextToken();
2098           if (token == TokenNameRPAREN) {
2099             getNextToken();
2100             break;
2101           }
2102           array_pair_list();
2103           if (token != TokenNameRPAREN) {
2104             throwSyntaxError("')' expected after keyword 'array'" + "(Found token: " + scanner.toStringAction(token) + ")");
2105           }
2106           getNextToken();
2107         } else {
2108           throwSyntaxError("'(' expected after keyword 'array'" + "(Found token: " + scanner.toStringAction(token) + ")");
2109         }
2110         break;
2111       case TokenNamelist :
2112         //    | T_LIST '(' assignment_list ')' '=' expr
2113         getNextToken();
2114         if (token == TokenNameLPAREN) {
2115           getNextToken();
2116           assignment_list();
2117           if (token != TokenNameRPAREN) {
2118             throwSyntaxError("')' expected after 'list' keyword.");
2119           }
2120           getNextToken();
2121           if (token != TokenNameEQUAL) {
2122             throwSyntaxError("'=' expected after 'list' keyword.");
2123           }
2124           getNextToken();
2125           expr();
2126         } else {
2127           throwSyntaxError("'(' expected after 'list' keyword.");
2128         }
2129         break;
2130       case TokenNamenew :
2131         //      | T_NEW class_name_reference ctor_arguments
2132         getNextToken();
2133         class_name_reference();
2134         ctor_arguments();
2135         break;
2136       //        | T_INC rw_variable
2137       //        | T_DEC rw_variable
2138       case TokenNamePLUS_PLUS :
2139       case TokenNameMINUS_MINUS :
2140         getNextToken();
2141         rw_variable();
2142         break;
2143       //        | variable '=' expr
2144       //        | variable '=' '&' variable
2145       //        | variable '=' '&' T_NEW class_name_reference ctor_arguments
2146       //        | variable T_PLUS_EQUAL expr
2147       //        | variable T_MINUS_EQUAL expr
2148       //        | variable T_MUL_EQUAL expr
2149       //        | variable T_DIV_EQUAL expr
2150       //        | variable T_CONCAT_EQUAL expr
2151       //        | variable T_MOD_EQUAL expr
2152       //        | variable T_AND_EQUAL expr
2153       //        | variable T_OR_EQUAL expr
2154       //        | variable T_XOR_EQUAL expr
2155       //        | variable T_SL_EQUAL expr
2156       //        | variable T_SR_EQUAL expr
2157       //        | rw_variable T_INC
2158       //        | rw_variable T_DEC
2159       case TokenNameIdentifier :
2160       case TokenNameVariable :
2161       case TokenNameDOLLAR :
2162         variable();
2163         switch (token) {
2164           case TokenNameEQUAL :
2165             getNextToken();
2166             if (token == TokenNameAND) {
2167               getNextToken();
2168               if (token == TokenNamenew) {
2169                 // | variable '=' '&' T_NEW class_name_reference
2170                 // ctor_arguments
2171                 getNextToken();
2172                 class_name_reference();
2173                 ctor_arguments();
2174               } else {
2175                 variable();
2176               }
2177             } else {
2178               expr();
2179             }
2180             break;
2181           case TokenNamePLUS_EQUAL :
2182           case TokenNameMINUS_EQUAL :
2183           case TokenNameMULTIPLY_EQUAL :
2184           case TokenNameDIVIDE_EQUAL :
2185           case TokenNameDOT_EQUAL :
2186           case TokenNameREMAINDER_EQUAL :
2187           case TokenNameAND_EQUAL :
2188           case TokenNameOR_EQUAL :
2189           case TokenNameXOR_EQUAL :
2190           case TokenNameRIGHT_SHIFT_EQUAL :
2191           case TokenNameLEFT_SHIFT_EQUAL :
2192             getNextToken();
2193             expr();
2194             break;
2195           case TokenNamePLUS_PLUS :
2196           case TokenNameMINUS_MINUS :
2197             getNextToken();
2198             break;
2199           default :
2200             if (!only_variable) {
2201               throwSyntaxError("Variable expression not allowed (found token '" + scanner.toStringAction(token) + "').");
2202             }
2203         }
2204         break;
2205       default :
2206         if (token != TokenNameINLINE_HTML) {
2207           if (token > TokenNameKEYWORD) {
2208             getNextToken();
2209             break;
2210           } else {
2211             throwSyntaxError("Error in expression (found token '" + scanner.toStringAction(token) + "').");
2212           }
2213         }
2214         return;
2215     }
2216     if (Scanner.TRACE) {
2217       System.out.println("TRACE: expr_without_variable() PART 2");
2218     }
2219     //  | expr T_BOOLEAN_OR expr
2220     //  | expr T_BOOLEAN_AND expr
2221     //  | expr T_LOGICAL_OR expr
2222     //  | expr T_LOGICAL_AND expr
2223     //  | expr T_LOGICAL_XOR expr
2224     //  | expr '|' expr
2225     //  | expr '&' expr
2226     //  | expr '^' expr
2227     //  | expr '.' expr
2228     //  | expr '+' expr
2229     //  | expr '-' expr
2230     //  | expr '*' expr
2231     //  | expr '/' expr
2232     //  | expr '%' expr
2233     //  | expr T_SL expr
2234     //  | expr T_SR expr
2235     //  | expr T_IS_IDENTICAL expr
2236     //  | expr T_IS_NOT_IDENTICAL expr
2237     //  | expr T_IS_EQUAL expr
2238     //  | expr T_IS_NOT_EQUAL expr
2239     //  | expr '<' expr
2240     //  | expr T_IS_SMALLER_OR_EQUAL expr
2241     //  | expr '>' expr
2242     //  | expr T_IS_GREATER_OR_EQUAL expr
2243     while (true) {
2244       switch (token) {
2245         case TokenNameOR_OR :
2246         case TokenNameAND_AND :
2247         case TokenNameand :
2248         case TokenNameor :
2249         case TokenNamexor :
2250         case TokenNameAND :
2251         case TokenNameOR :
2252         case TokenNameXOR :
2253         case TokenNameDOT :
2254         case TokenNamePLUS :
2255         case TokenNameMINUS :
2256         case TokenNameMULTIPLY :
2257         case TokenNameDIVIDE :
2258         case TokenNameREMAINDER :
2259         case TokenNameLEFT_SHIFT :
2260         case TokenNameRIGHT_SHIFT :
2261         case TokenNameEQUAL_EQUAL_EQUAL :
2262         case TokenNameNOT_EQUAL_EQUAL :
2263         case TokenNameEQUAL_EQUAL :
2264         case TokenNameNOT_EQUAL :
2265         case TokenNameLESS :
2266         case TokenNameLESS_EQUAL :
2267         case TokenNameGREATER :
2268         case TokenNameGREATER_EQUAL :
2269           getNextToken();
2270           expr();
2271           break;
2272         //  | expr T_INSTANCEOF class_name_reference
2273         //      | expr '?' expr ':' expr
2274         case TokenNameinstanceof :
2275           getNextToken();
2276           class_name_reference();
2277           break;
2278         case TokenNameQUESTION :
2279           getNextToken();
2280           expr();
2281           if (token == TokenNameCOLON) {
2282             getNextToken();
2283             expr();
2284           }
2285           break;
2286         default :
2287           return;
2288       }
2289     }
2290   }
2291   private void class_name_reference() {
2292     //  class_name_reference:
2293     //  T_STRING
2294     //| dynamic_class_name_reference
2295     if (Scanner.TRACE) {
2296       System.out.println("TRACE: class_name_reference()");
2297     }
2298     if (token == TokenNameIdentifier) {
2299       getNextToken();
2300     } else {
2301       dynamic_class_name_reference();
2302     }
2303   }
2304   private void dynamic_class_name_reference() {
2305     //dynamic_class_name_reference:
2306     //  base_variable T_OBJECT_OPERATOR object_property
2307     // dynamic_class_name_variable_properties
2308     //| base_variable
2309     if (Scanner.TRACE) {
2310       System.out.println("TRACE: dynamic_class_name_reference()");
2311     }
2312     base_variable();
2313     if (token == TokenNameMINUS_GREATER) {
2314       getNextToken();
2315       object_property();
2316       dynamic_class_name_variable_properties();
2317     }
2318   }
2319   private void dynamic_class_name_variable_properties() {
2320     //  dynamic_class_name_variable_properties:
2321     //                  dynamic_class_name_variable_properties
2322     // dynamic_class_name_variable_property
2323     //          | /* empty */
2324     if (Scanner.TRACE) {
2325       System.out.println("TRACE: dynamic_class_name_variable_properties()");
2326     }
2327     while (token == TokenNameMINUS_GREATER) {
2328       dynamic_class_name_variable_property();
2329     }
2330   }
2331   private void dynamic_class_name_variable_property() {
2332     //  dynamic_class_name_variable_property:
2333     //  T_OBJECT_OPERATOR object_property
2334     if (Scanner.TRACE) {
2335       System.out.println("TRACE: dynamic_class_name_variable_property()");
2336     }
2337     if (token == TokenNameMINUS_GREATER) {
2338       getNextToken();
2339       object_property();
2340     }
2341   }
2342   private void ctor_arguments() {
2343     //  ctor_arguments:
2344     //  /* empty */
2345     //| '(' function_call_parameter_list ')'
2346     if (token == TokenNameLPAREN) {
2347       getNextToken();
2348       if (token == TokenNameRPAREN) {
2349         getNextToken();
2350         return;
2351       }
2352       non_empty_function_call_parameter_list();
2353       if (token != TokenNameRPAREN) {
2354         throwSyntaxError("')' expected in ctor_arguments.");
2355       }
2356       getNextToken();
2357     }
2358   }
2359   private void assignment_list() {
2360     //  assignment_list:
2361     //  assignment_list ',' assignment_list_element
2362     //| assignment_list_element
2363     while (true) {
2364       assignment_list_element();
2365       if (token != TokenNameCOMMA) {
2366         break;
2367       }
2368       getNextToken();
2369     }
2370   }
2371   private void assignment_list_element() {
2372     //assignment_list_element:
2373     //  variable
2374     //| T_LIST '(' assignment_list ')'
2375     //| /* empty */
2376     if (token == TokenNameVariable || token == TokenNameDOLLAR) {
2377       variable();
2378     } else {
2379       if (token == TokenNamelist) {
2380         getNextToken();
2381         if (token == TokenNameLPAREN) {
2382           getNextToken();
2383           assignment_list();
2384           if (token != TokenNameRPAREN) {
2385             throwSyntaxError("')' expected after 'list' keyword.");
2386           }
2387           getNextToken();
2388         } else {
2389           throwSyntaxError("'(' expected after 'list' keyword.");
2390         }
2391       }
2392     }
2393   }
2394   private void array_pair_list() {
2395     //  array_pair_list:
2396     //  /* empty */
2397     //| non_empty_array_pair_list possible_comma
2398     non_empty_array_pair_list();
2399     if (token == TokenNameCOMMA) {
2400       getNextToken();
2401     }
2402   }
2403   private void non_empty_array_pair_list() {
2404     //non_empty_array_pair_list:
2405     //  non_empty_array_pair_list ',' expr T_DOUBLE_ARROW expr
2406     //| non_empty_array_pair_list ',' expr
2407     //| expr T_DOUBLE_ARROW expr
2408     //| expr
2409     //| non_empty_array_pair_list ',' expr T_DOUBLE_ARROW '&' w_variable
2410     //| non_empty_array_pair_list ',' '&' w_variable
2411     //| expr T_DOUBLE_ARROW '&' w_variable
2412     //| '&' w_variable
2413     while (true) {
2414       if (token == TokenNameAND) {
2415         getNextToken();
2416         variable();
2417       } else {
2418         expr();
2419         if (token == TokenNameAND) {
2420           getNextToken();
2421           variable();
2422         } else if (token == TokenNameEQUAL_GREATER) {
2423           getNextToken();
2424           if (token == TokenNameAND) {
2425             getNextToken();
2426             variable();
2427           } else {
2428             expr();
2429           }
2430         }
2431       }
2432       if (token != TokenNameCOMMA) {
2433         return;
2434       }
2435       getNextToken();
2436       if (token == TokenNameRPAREN) {
2437         return;
2438       }
2439     }
2440   }
2441   //  private void variableList() {
2442   //    do {
2443   //      variable();
2444   //      if (token == TokenNameCOMMA) {
2445   //        getNextToken();
2446   //      } else {
2447   //        break;
2448   //      }
2449   //    } while (true);
2450   //  }
2451   private void variable_without_objects() {
2452     //  variable_without_objects:
2453     //                  reference_variable
2454     //          | simple_indirect_reference reference_variable
2455     if (Scanner.TRACE) {
2456       System.out.println("TRACE: variable_without_objects()");
2457     }
2458     while (token == TokenNameDOLLAR) {
2459       getNextToken();
2460     }
2461     reference_variable();
2462   }
2463   private void function_call() {
2464     //  function_call:
2465     //  T_STRING '(' function_call_parameter_list ')'
2466     //| class_constant '(' function_call_parameter_list ')'
2467     //| static_member '(' function_call_parameter_list ')'
2468     //| variable_without_objects '(' function_call_parameter_list ')'
2469     char[] defineName = null;
2470     char[] ident = null;
2471     int startPos=0;
2472     int endPos=0;
2473     if (Scanner.TRACE) {
2474       System.out.println("TRACE: function_call()");
2475     }
2476     if (token == TokenNameIdentifier) {
2477       ident = scanner.getCurrentIdentifierSource();
2478       defineName = ident;
2479       startPos = scanner.getCurrentTokenStartPosition();
2480       endPos = scanner.getCurrentTokenEndPosition();
2481       getNextToken();
2482       switch (token) {
2483         case TokenNamePAAMAYIM_NEKUDOTAYIM :
2484           // static member:
2485           defineName = null;
2486           getNextToken();
2487           if (token == TokenNameIdentifier) {
2488             // class _constant
2489             getNextToken();
2490           } else {
2491             //        static member:
2492             variable_without_objects();
2493           }
2494           break;
2495       }
2496     } else {
2497       variable_without_objects();
2498     }
2499     if (token != TokenNameLPAREN) {
2500       if (defineName!=null) {
2501         // does this identifier contain only uppercase characters?
2502         if (defineName.length==3) {
2503           if (defineName[0]=='d' &&
2504               defineName[1]=='i' &&
2505               defineName[2]=='e' ) {
2506             defineName=null;
2507           }
2508         } else if (defineName.length==4) {
2509           if (defineName[0]=='t' &&
2510               defineName[1]=='r' &&
2511               defineName[2]=='u' &&
2512               defineName[3]=='e' ) {
2513             defineName=null;
2514           } else if (defineName[0]=='n' &&
2515               defineName[1]=='u' &&
2516               defineName[2]=='l' &&
2517               defineName[3]=='l' ) {
2518             defineName=null;
2519           }
2520         } else if (defineName.length==5) {
2521           if (defineName[0]=='f' &&
2522               defineName[1]=='a' &&
2523               defineName[2]=='l' &&
2524               defineName[3]=='s' &&
2525               defineName[4]=='e' ) {
2526             defineName=null;
2527           }
2528         }
2529         if (defineName!=null) {
2530           for (int i=0; i<defineName.length;i++) {
2531             if (Character.isLowerCase(defineName[i])) {
2532               problemReporter.phpUppercaseIdentifierWarning(startPos, endPos,
2533                 referenceContext, compilationUnit.compilationResult);
2534               break;
2535             }
2536           }
2537         }
2538       }
2539       // TODO is this ok ?
2540       return;
2541       //      throwSyntaxError("'(' expected in function call.");
2542     }
2543     getNextToken();
2544     if (token == TokenNameRPAREN) {
2545       getNextToken();
2546       return;
2547     }
2548     non_empty_function_call_parameter_list();
2549     if (token != TokenNameRPAREN) {
2550       String functionName;
2551       if (ident==null) {
2552         functionName = new String(" ");
2553       } else {
2554         functionName = new String(ident);
2555       }
2556       throwSyntaxError("')' expected in function call ("+functionName+").");
2557     }
2558     getNextToken();
2559   }
2560   //  private void function_call_parameter_list() {
2561   //    function_call_parameter_list:
2562   //            non_empty_function_call_parameter_list { $$ = $1; }
2563   //    | /* empty */
2564   //  }
2565   private void non_empty_function_call_parameter_list() {
2566     //non_empty_function_call_parameter_list:
2567     //          expr_without_variable
2568     //  | variable
2569     //  | '&' w_variable
2570     //  | non_empty_function_call_parameter_list ',' expr_without_variable
2571     //  | non_empty_function_call_parameter_list ',' variable
2572     //  | non_empty_function_call_parameter_list ',' '&' w_variable
2573     if (Scanner.TRACE) {
2574       System.out.println("TRACE: non_empty_function_call_parameter_list()");
2575     }
2576     while (true) {
2577       if (token == TokenNameAND) {
2578         getNextToken();
2579         w_variable();
2580       } else {
2581         //        if (token == TokenNameIdentifier || token ==
2582         // TokenNameVariable
2583         //            || token == TokenNameDOLLAR) {
2584         //          variable();
2585         //        } else {
2586         expr_without_variable(true);
2587         //        }
2588       }
2589       if (token != TokenNameCOMMA) {
2590         break;
2591       }
2592       getNextToken();
2593     }
2594   }
2595   private void fully_qualified_class_name() {
2596     if (token == TokenNameIdentifier) {
2597       getNextToken();
2598     } else {
2599       throwSyntaxError("Class name expected.");
2600     }
2601   }
2602   private void static_member() {
2603     //  static_member:
2604     //  fully_qualified_class_name T_PAAMAYIM_NEKUDOTAYIM
2605     // variable_without_objects
2606     if (Scanner.TRACE) {
2607       System.out.println("TRACE: static_member()");
2608     }
2609     fully_qualified_class_name();
2610     if (token != TokenNamePAAMAYIM_NEKUDOTAYIM) {
2611       throwSyntaxError("'::' expected after class name (static_member).");
2612     }
2613     getNextToken();
2614     variable_without_objects();
2615   }
2616   private void base_variable_with_function_calls() {
2617     //  base_variable_with_function_calls:
2618     //  base_variable
2619     //| function_call
2620     boolean functionCall = false;
2621     if (Scanner.TRACE) {
2622       System.out.println("TRACE: base_variable_with_function_calls()");
2623     }
2624     //    if (token == TokenNameIdentifier) {
2625     //      functionCall = true;
2626     //    } else if (token == TokenNameVariable) {
2627     //      int tempToken = token;
2628     //      int tempPosition = scanner.currentPosition;
2629     //      getNextToken();
2630     //      if (token == TokenNameLPAREN) {
2631     //        functionCall = true;
2632     //      }
2633     //      token = tempToken;
2634     //      scanner.currentPosition = tempPosition;
2635     //      scanner.phpMode = true;
2636     //    }
2637     //    if (functionCall) {
2638     function_call();
2639     //    } else {
2640     //      base_variable();
2641     //    }
2642   }
2643   private void base_variable() {
2644     //  base_variable:
2645     //                  reference_variable
2646     //          | simple_indirect_reference reference_variable
2647     //          | static_member
2648     if (Scanner.TRACE) {
2649       System.out.println("TRACE: base_variable()");
2650     }
2651     if (token == TokenNameIdentifier) {
2652       static_member();
2653     } else {
2654       while (token == TokenNameDOLLAR) {
2655         getNextToken();
2656       }
2657       reference_variable();
2658     }
2659   }
2660   //  private void simple_indirect_reference() {
2661   //    // simple_indirect_reference:
2662   //    // '$'
2663   //    //| simple_indirect_reference '$'
2664   //  }
2665   private void reference_variable() {
2666     //  reference_variable:
2667     //                  reference_variable '[' dim_offset ']'
2668     //          | reference_variable '{' expr '}'
2669     //          | compound_variable
2670     if (Scanner.TRACE) {
2671       System.out.println("TRACE: reference_variable()");
2672     }
2673     compound_variable();
2674     while (true) {
2675       if (token == TokenNameLBRACE) {
2676         getNextToken();
2677         expr();
2678         if (token != TokenNameRBRACE) {
2679           throwSyntaxError("'}' expected in reference variable.");
2680         }
2681         getNextToken();
2682       } else if (token == TokenNameLBRACKET) {
2683         getNextToken();
2684         if (token != TokenNameRBRACKET) {
2685           expr();
2686           //        dim_offset();
2687           if (token != TokenNameRBRACKET) {
2688             throwSyntaxError("']' expected in reference variable.");
2689           }
2690         }
2691         getNextToken();
2692       } else {
2693         break;
2694       }
2695     }
2696   }
2697   private void compound_variable() {
2698     //  compound_variable:
2699     //                  T_VARIABLE
2700     //          | '$' '{' expr '}'
2701     if (Scanner.TRACE) {
2702       System.out.println("TRACE: compound_variable()");
2703     }
2704     if (token == TokenNameVariable) {
2705       getNextToken();
2706     } else {
2707       // because of simple_indirect_reference
2708       while (token == TokenNameDOLLAR) {
2709         getNextToken();
2710       }
2711       if (token != TokenNameLBRACE) {
2712         throwSyntaxError("'{' expected after compound variable token '$'.");
2713       }
2714       getNextToken();
2715       expr();
2716       if (token != TokenNameRBRACE) {
2717         throwSyntaxError("'}' expected after compound variable token '$'.");
2718       }
2719       getNextToken();
2720     }
2721   }
2722   //  private void dim_offset() {
2723   //    // dim_offset:
2724   //    // /* empty */
2725   //    // | expr
2726   //    expr();
2727   //  }
2728   private void object_property() {
2729     //  object_property:
2730     //  object_dim_list
2731     //| variable_without_objects
2732     if (Scanner.TRACE) {
2733       System.out.println("TRACE: object_property()");
2734     }
2735     if (token == TokenNameVariable || token == TokenNameDOLLAR) {
2736       variable_without_objects();
2737     } else {
2738       object_dim_list();
2739     }
2740   }
2741   private void object_dim_list() {
2742     //object_dim_list:
2743     //  object_dim_list '[' dim_offset ']'
2744     //| object_dim_list '{' expr '}'
2745     //| variable_name
2746     if (Scanner.TRACE) {
2747       System.out.println("TRACE: object_dim_list()");
2748     }
2749     variable_name();
2750     while (true) {
2751       if (token == TokenNameLBRACE) {
2752         getNextToken();
2753         expr();
2754         if (token != TokenNameRBRACE) {
2755           throwSyntaxError("'}' expected in object_dim_list.");
2756         }
2757         getNextToken();
2758       } else if (token == TokenNameLBRACKET) {
2759         getNextToken();
2760         if (token == TokenNameRBRACKET) {
2761           getNextToken();
2762           continue;
2763         }
2764         expr();
2765         if (token != TokenNameRBRACKET) {
2766           throwSyntaxError("']' expected in object_dim_list.");
2767         }
2768         getNextToken();
2769       } else {
2770         break;
2771       }
2772     }
2773   }
2774   private void variable_name() {
2775     //variable_name:
2776     //  T_STRING
2777     //| '{' expr '}'
2778     if (Scanner.TRACE) {
2779       System.out.println("TRACE: variable_name()");
2780     }
2781     if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
2782       if (token > TokenNameKEYWORD) {
2783         // TODO show a warning "Keyword used as variable" ?
2784       }
2785       getNextToken();
2786     } else {
2787       if (token != TokenNameLBRACE) {
2788         throwSyntaxError("'{' expected in variable name.");
2789       }
2790       getNextToken();
2791       expr();
2792       if (token != TokenNameRBRACE) {
2793         throwSyntaxError("'}' expected in variable name.");
2794       }
2795       getNextToken();
2796     }
2797   }
2798   private void r_variable() {
2799     variable();
2800   }
2801   private void w_variable() {
2802     variable();
2803   }
2804   private void rw_variable() {
2805     variable();
2806   }
2807   private void variable() {
2808     //    variable:
2809     //          base_variable_with_function_calls T_OBJECT_OPERATOR
2810     //                  object_property method_or_not variable_properties
2811     //  | base_variable_with_function_calls
2812     base_variable_with_function_calls();
2813     if (token == TokenNameMINUS_GREATER) {
2814       getNextToken();
2815       object_property();
2816       method_or_not();
2817       variable_properties();
2818     }
2819     //    if (token == TokenNameDOLLAR_LBRACE) {
2820     //      getNextToken();
2821     //      expr();
2822     //      ;
2823     //      if (token != TokenNameRBRACE) {
2824     //        throwSyntaxError("'}' expected after indirect variable token '${'.");
2825     //      }
2826     //      getNextToken();
2827     //    } else {
2828     //      if (token == TokenNameVariable) {
2829     //        getNextToken();
2830     //        if (token == TokenNameLBRACKET) {
2831     //          getNextToken();
2832     //          expr();
2833     //          if (token != TokenNameRBRACKET) {
2834     //            throwSyntaxError("']' expected in variable-list.");
2835     //          }
2836     //          getNextToken();
2837     //        } else if (token == TokenNameEQUAL) {
2838     //          getNextToken();
2839     //          static_scalar();
2840     //        }
2841     //      } else {
2842     //        throwSyntaxError("$-variable expected in variable-list.");
2843     //      }
2844     //    }
2845   }
2846   private void variable_properties() {
2847     //  variable_properties:
2848     //                  variable_properties variable_property
2849     //          | /* empty */
2850     while (token == TokenNameMINUS_GREATER) {
2851       variable_property();
2852     }
2853   }
2854   private void variable_property() {
2855     //  variable_property:
2856     //                  T_OBJECT_OPERATOR object_property method_or_not
2857     if (Scanner.TRACE) {
2858       System.out.println("TRACE: variable_property()");
2859     }
2860     if (token == TokenNameMINUS_GREATER) {
2861       getNextToken();
2862       object_property();
2863       method_or_not();
2864     } else {
2865       throwSyntaxError("'->' expected in variable_property.");
2866     }
2867   }
2868   private void method_or_not() {
2869     //  method_or_not:
2870     //                  '(' function_call_parameter_list ')'
2871     //          | /* empty */
2872     if (Scanner.TRACE) {
2873       System.out.println("TRACE: method_or_not()");
2874     }
2875     if (token == TokenNameLPAREN) {
2876       getNextToken();
2877       if (token == TokenNameRPAREN) {
2878         getNextToken();
2879         return;
2880       }
2881       non_empty_function_call_parameter_list();
2882       if (token != TokenNameRPAREN) {
2883         throwSyntaxError("')' expected in method_or_not.");
2884       }
2885       getNextToken();
2886     }
2887   }
2888   private void exit_expr() {
2889     //  /* empty */
2890     //  | '(' ')'
2891     //  | '(' expr ')'
2892     if (token != TokenNameLPAREN) {
2893       return;
2894     }
2895     getNextToken();
2896     if (token == TokenNameRPAREN) {
2897       getNextToken();
2898       return;
2899     }
2900     expr();
2901     if (token != TokenNameRPAREN) {
2902       throwSyntaxError("')' expected after keyword 'exit'");
2903     }
2904     getNextToken();
2905   }
2906   private void encaps_list() {
2907     //                  encaps_list encaps_var
2908     //          | encaps_list T_STRING
2909     //          | encaps_list T_NUM_STRING
2910     //          | encaps_list T_ENCAPSED_AND_WHITESPACE
2911     //          | encaps_list T_CHARACTER
2912     //          | encaps_list T_BAD_CHARACTER
2913     //          | encaps_list '['
2914     //          | encaps_list ']'
2915     //          | encaps_list '{'
2916     //          | encaps_list '}'
2917     //          | encaps_list T_OBJECT_OPERATOR
2918     //          | /* empty */
2919     while (true) {
2920       switch (token) {
2921         case TokenNameSTRING :
2922           getNextToken();
2923           break;
2924         case TokenNameLBRACE :
2925           //          scanner.encapsedStringStack.pop();
2926           getNextToken();
2927           break;
2928         case TokenNameRBRACE :
2929           //          scanner.encapsedStringStack.pop();
2930           getNextToken();
2931           break;
2932         case TokenNameLBRACKET :
2933           //          scanner.encapsedStringStack.pop();
2934           getNextToken();
2935           break;
2936         case TokenNameRBRACKET :
2937           //          scanner.encapsedStringStack.pop();
2938           getNextToken();
2939           break;
2940         case TokenNameMINUS_GREATER :
2941           //          scanner.encapsedStringStack.pop();
2942           getNextToken();
2943           break;
2944         case TokenNameVariable :
2945         case TokenNameDOLLAR_LBRACE :
2946         case TokenNameCURLY_OPEN :
2947           encaps_var();
2948           break;
2949         //        case TokenNameDOLLAR :
2950         //          getNextToken();
2951         //          if (token == TokenNameLBRACE) {
2952         //            token = TokenNameDOLLAR_LBRACE;
2953         //            encaps_var();
2954         //          }
2955         //          break;
2956         default :
2957           char encapsedChar = ((Character) scanner.encapsedStringStack.peek()).charValue();
2958           if (encapsedChar == '$') {
2959             scanner.encapsedStringStack.pop();
2960             encapsedChar = ((Character) scanner.encapsedStringStack.peek()).charValue();
2961             switch (encapsedChar) {
2962               case '`' :
2963                 if (token == TokenNameEncapsedString0) {
2964                   return;
2965                 }
2966                 token = TokenNameSTRING;
2967                 continue;
2968               case '\'' :
2969                 if (token == TokenNameEncapsedString1) {
2970                   return;
2971                 }
2972                 token = TokenNameSTRING;
2973                 continue;
2974               case '"' :
2975                 if (token == TokenNameEncapsedString2) {
2976                   return;
2977                 }
2978                 token = TokenNameSTRING;
2979                 continue;
2980             }
2981           }
2982           return;
2983       }
2984     }
2985   }
2986   private void encaps_var() {
2987     //                  T_VARIABLE
2988     //          | T_VARIABLE '[' encaps_var_offset ']'
2989     //          | T_VARIABLE T_OBJECT_OPERATOR T_STRING
2990     //          | T_DOLLAR_OPEN_CURLY_BRACES expr '}'
2991     //          | T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
2992     //          | T_CURLY_OPEN variable '}'
2993     switch (token) {
2994       case TokenNameVariable :
2995         getNextToken();
2996         if (token == TokenNameLBRACKET) {
2997           getNextToken();
2998           //          if (token == TokenNameRBRACKET) {
2999           //            getNextToken();
3000           //          } else {
3001           expr(); //encaps_var_offset();
3002           if (token != TokenNameRBRACKET) {
3003             throwSyntaxError("']' expected after variable.");
3004           }
3005           //          scanner.encapsedStringStack.pop();
3006           getNextToken();
3007           //          }
3008         } else if (token == TokenNameMINUS_GREATER) {
3009           getNextToken();
3010           if (token != TokenNameIdentifier) {
3011             throwSyntaxError("Identifier expected after '->'.");
3012           }
3013           //          scanner.encapsedStringStack.pop();
3014           getNextToken();
3015         }
3016         //        else {
3017         //          // scanner.encapsedStringStack.pop();
3018         //          int tempToken = TokenNameSTRING;
3019         //          if (!scanner.encapsedStringStack.isEmpty()
3020         //              && (token == TokenNameEncapsedString0
3021         //                  || token == TokenNameEncapsedString1
3022         //                  || token == TokenNameEncapsedString2 || token ==
3023         // TokenNameERROR)) {
3024         //            char encapsedChar = ((Character)
3025         // scanner.encapsedStringStack.peek())
3026         //                .charValue();
3027         //            switch (token) {
3028         //              case TokenNameEncapsedString0 :
3029         //                if (encapsedChar == '`') {
3030         //                  tempToken = TokenNameEncapsedString0;
3031         //                }
3032         //                break;
3033         //              case TokenNameEncapsedString1 :
3034         //                if (encapsedChar == '\'') {
3035         //                  tempToken = TokenNameEncapsedString1;
3036         //                }
3037         //                break;
3038         //              case TokenNameEncapsedString2 :
3039         //                if (encapsedChar == '"') {
3040         //                  tempToken = TokenNameEncapsedString2;
3041         //                }
3042         //                break;
3043         //              case TokenNameERROR :
3044         //                if (scanner.source[scanner.currentPosition - 1] == '\\') {
3045         //                  scanner.currentPosition--;
3046         //                  getNextToken();
3047         //                }
3048         //                break;
3049         //            }
3050         //          }
3051         //          token = tempToken;
3052         //        }
3053         break;
3054       case TokenNameDOLLAR_LBRACE :
3055         getNextToken();
3056         if (token == TokenNameIdentifier) {
3057           getNextToken();
3058           if (token == TokenNameLBRACKET) {
3059             getNextToken();
3060             //            if (token == TokenNameRBRACKET) {
3061             //              getNextToken();
3062             //            } else {
3063             expr();
3064             if (token != TokenNameRBRACKET) {
3065               throwSyntaxError("']' expected after '${'.");
3066             }
3067             getNextToken();
3068             //            }
3069           }
3070           if (token != TokenNameRBRACE) {
3071             throwSyntaxError("'}' expected after '${'.");
3072           }
3073           //          scanner.encapsedStringStack.pop();
3074           getNextToken();
3075         } else {
3076           expr();
3077           if (token != TokenNameRBRACE) {
3078             throwSyntaxError("'}' expected.");
3079           }
3080           //          scanner.encapsedStringStack.pop();
3081           getNextToken();
3082         }
3083         break;
3084       case TokenNameCURLY_OPEN :
3085         getNextToken();
3086         if (token == TokenNameIdentifier || token > TokenNameKEYWORD) {
3087           getNextToken();
3088           if (token == TokenNameLBRACKET) {
3089             getNextToken();
3090             //            if (token == TokenNameRBRACKET) {
3091             //              getNextToken();
3092             //            } else {
3093             expr();
3094             if (token != TokenNameRBRACKET) {
3095               throwSyntaxError("']' expected after '{$'.");
3096             }
3097             getNextToken();
3098             //            }
3099           } else if (token == TokenNameMINUS_GREATER) {
3100             getNextToken();
3101             if (token != TokenNameIdentifier) {
3102               throwSyntaxError("String token expected.");
3103             }
3104             getNextToken();
3105           }
3106           //          if (token != TokenNameRBRACE) {
3107           //            throwSyntaxError("'}' expected after '{$'.");
3108           //          }
3109           //          // scanner.encapsedStringStack.pop();
3110           //          getNextToken();
3111         } else {
3112           expr();
3113           if (token != TokenNameRBRACE) {
3114             throwSyntaxError("'}' expected.");
3115           }
3116           //          scanner.encapsedStringStack.pop();
3117           getNextToken();
3118         }
3119         break;
3120     }
3121   }
3122   private void encaps_var_offset() {
3123     //                  T_STRING
3124     //          | T_NUM_STRING
3125     //          | T_VARIABLE
3126     switch (token) {
3127       case TokenNameSTRING :
3128         getNextToken();
3129         break;
3130       case TokenNameIntegerLiteral :
3131         getNextToken();
3132         break;
3133       case TokenNameVariable :
3134         getNextToken();
3135         break;
3136       case TokenNameIdentifier :
3137         getNextToken();
3138         break;
3139       default :
3140         throwSyntaxError("Variable or String token expected.");
3141         break;
3142     }
3143   }
3144   private void internal_functions_in_yacc() {
3145     int start = 0;
3146     ImportReference impt = null;
3147     switch (token) {
3148       case TokenNameisset :
3149         //      T_ISSET '(' isset_variables ')'
3150         getNextToken();
3151         if (token != TokenNameLPAREN) {
3152           throwSyntaxError("'(' expected after keyword 'isset'");
3153         }
3154         getNextToken();
3155         isset_variables();
3156         if (token != TokenNameRPAREN) {
3157           throwSyntaxError("')' expected after keyword 'isset'");
3158         }
3159         getNextToken();
3160         break;
3161       case TokenNameempty :
3162         //      T_EMPTY '(' variable ')'
3163         getNextToken();
3164         if (token != TokenNameLPAREN) {
3165           throwSyntaxError("'(' expected after keyword 'empty'");
3166         }
3167         getNextToken();
3168         variable();
3169         if (token != TokenNameRPAREN) {
3170           throwSyntaxError("')' expected after keyword 'empty'");
3171         }
3172         getNextToken();
3173         break;
3174       case TokenNameinclude :
3175         //T_INCLUDE expr
3176         start = scanner.getCurrentTokenStartPosition();
3177         getNextToken();
3178         expr();
3179
3180         impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
3181         impt.declarationSourceEnd = impt.sourceEnd;
3182         impt.declarationEnd = impt.declarationSourceEnd;
3183         //endPosition is just before the ;
3184         impt.declarationSourceStart = start;
3185         includesList.add(impt);
3186         break;
3187       case TokenNameinclude_once :
3188         //      T_INCLUDE_ONCE expr
3189         start = scanner.getCurrentTokenStartPosition();
3190         getNextToken();
3191         expr();
3192         impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
3193         impt.declarationSourceEnd = impt.sourceEnd;
3194         impt.declarationEnd = impt.declarationSourceEnd;
3195         //endPosition is just before the ;
3196         impt.declarationSourceStart = start;
3197         includesList.add(impt);
3198         break;
3199       case TokenNameeval :
3200         //      T_EVAL '(' expr ')'
3201         getNextToken();
3202         if (token != TokenNameLPAREN) {
3203           throwSyntaxError("'(' expected after keyword 'eval'");
3204         }
3205         getNextToken();
3206         expr();
3207         if (token != TokenNameRPAREN) {
3208           throwSyntaxError("')' expected after keyword 'eval'");
3209         }
3210         getNextToken();
3211         break;
3212       case TokenNamerequire :
3213         //T_REQUIRE expr
3214         start = scanner.getCurrentTokenStartPosition();
3215         getNextToken();
3216         expr();
3217         impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
3218         impt.declarationSourceEnd = impt.sourceEnd;
3219         impt.declarationEnd = impt.declarationSourceEnd;
3220         //endPosition is just before the ;
3221         impt.declarationSourceStart = start;
3222         includesList.add(impt);
3223         break;
3224       case TokenNamerequire_once :
3225         //      T_REQUIRE_ONCE expr
3226         start = scanner.getCurrentTokenStartPosition();
3227         getNextToken();
3228         expr();
3229         impt = new ImportReference(scanner.getCurrentTokenSource(start), start, scanner.getCurrentTokenEndPosition(), false);
3230         impt.declarationSourceEnd = impt.sourceEnd;
3231         impt.declarationEnd = impt.declarationSourceEnd;
3232         //endPosition is just before the ;
3233         impt.declarationSourceStart = start;
3234         includesList.add(impt);
3235         break;
3236     }
3237   }
3238   private void isset_variables() {
3239     //  variable
3240     //  | isset_variables ','
3241     if (token == TokenNameRPAREN) {
3242       throwSyntaxError("Variable expected after keyword 'isset'");
3243     }
3244     while (true) {
3245       variable();
3246       if (token == TokenNameCOMMA) {
3247         getNextToken();
3248       } else {
3249         break;
3250       }
3251     }
3252   }
3253   private boolean common_scalar() {
3254     //  common_scalar:
3255     //  T_LNUMBER
3256     //  | T_DNUMBER
3257     //  | T_CONSTANT_ENCAPSED_STRING
3258     //  | T_LINE
3259     //  | T_FILE
3260     //  | T_CLASS_C
3261     //  | T_METHOD_C
3262     //  | T_FUNC_C
3263     switch (token) {
3264       case TokenNameIntegerLiteral :
3265         getNextToken();
3266         return true;
3267       case TokenNameDoubleLiteral :
3268         getNextToken();
3269         return true;
3270       case TokenNameStringDoubleQuote :
3271         getNextToken();
3272         return true;
3273       case TokenNameStringSingleQuote :
3274         getNextToken();
3275         return true;
3276       case TokenNameStringInterpolated :
3277         getNextToken();
3278         return true;
3279       case TokenNameFILE :
3280         getNextToken();
3281         return true;
3282       case TokenNameLINE :
3283         getNextToken();
3284         return true;
3285       case TokenNameCLASS_C :
3286         getNextToken();
3287         return true;
3288       case TokenNameMETHOD_C :
3289         getNextToken();
3290         return true;
3291       case TokenNameFUNC_C :
3292         getNextToken();
3293         return true;
3294     }
3295     return false;
3296   }
3297   private void scalar() {
3298     //  scalar:
3299     //  T_STRING
3300     //| T_STRING_VARNAME
3301     //| class_constant
3302     //| common_scalar
3303     //| '"' encaps_list '"'
3304     //| '\'' encaps_list '\''
3305     //| T_START_HEREDOC encaps_list T_END_HEREDOC
3306     throwSyntaxError("Not yet implemented (scalar).");
3307   }
3308   private void static_scalar() {
3309     //    static_scalar: /* compile-time evaluated scalars */
3310     //          common_scalar
3311     //  | T_STRING
3312     //  | '+' static_scalar
3313     //  | '-' static_scalar
3314     //  | T_ARRAY '(' static_array_pair_list ')'
3315     //  | static_class_constant
3316     if (common_scalar()) {
3317       return;
3318     }
3319     switch (token) {
3320       case TokenNameIdentifier :
3321         getNextToken();
3322         //        static_class_constant:
3323         //              T_STRING T_PAAMAYIM_NEKUDOTAYIM T_STRING
3324         if (token == TokenNamePAAMAYIM_NEKUDOTAYIM) {
3325           getNextToken();
3326           if (token == TokenNameIdentifier) {
3327             getNextToken();
3328           } else {
3329             throwSyntaxError("Identifier expected after '::' operator.");
3330           }
3331         }
3332         break;
3333       case TokenNameEncapsedString0 :
3334         try {
3335           scanner.currentCharacter = scanner.source[scanner.currentPosition++];
3336           while (scanner.currentCharacter != '`') {
3337             if (scanner.currentCharacter == '\\') {
3338               scanner.currentPosition++;
3339             }
3340             scanner.currentCharacter = scanner.source[scanner.currentPosition++];
3341           }
3342           getNextToken();
3343         } catch (IndexOutOfBoundsException e) {
3344           throwSyntaxError("'`' expected at end of static string.");
3345         }
3346         break;
3347       case TokenNameEncapsedString1 :
3348         try {
3349           scanner.currentCharacter = scanner.source[scanner.currentPosition++];
3350           while (scanner.currentCharacter != '\'') {
3351             if (scanner.currentCharacter == '\\') {
3352               scanner.currentPosition++;
3353             }
3354             scanner.currentCharacter = scanner.source[scanner.currentPosition++];
3355           }
3356           getNextToken();
3357         } catch (IndexOutOfBoundsException e) {
3358           throwSyntaxError("'\'' expected at end of static string.");
3359         }
3360         break;
3361       case TokenNameEncapsedString2 :
3362         try {
3363           scanner.currentCharacter = scanner.source[scanner.currentPosition++];
3364           while (scanner.currentCharacter != '"') {
3365             if (scanner.currentCharacter == '\\') {
3366               scanner.currentPosition++;
3367             }
3368             scanner.currentCharacter = scanner.source[scanner.currentPosition++];
3369           }
3370           getNextToken();
3371         } catch (IndexOutOfBoundsException e) {
3372           throwSyntaxError("'\"' expected at end of static string.");
3373         }
3374         break;
3375       case TokenNamePLUS :
3376         getNextToken();
3377         static_scalar();
3378         break;
3379       case TokenNameMINUS :
3380         getNextToken();
3381         static_scalar();
3382         break;
3383       case TokenNamearray :
3384         getNextToken();
3385         if (token != TokenNameLPAREN) {
3386           throwSyntaxError("'(' expected after keyword 'array'");
3387         }
3388         getNextToken();
3389         if (token == TokenNameRPAREN) {
3390           getNextToken();
3391           break;
3392         }
3393         non_empty_static_array_pair_list();
3394         if (token != TokenNameRPAREN) {
3395           throwSyntaxError("')' expected after keyword 'array'");
3396         }
3397         getNextToken();
3398         break;
3399       //      case TokenNamenull :
3400       //        getNextToken();
3401       //        break;
3402       //      case TokenNamefalse :
3403       //        getNextToken();
3404       //        break;
3405       //      case TokenNametrue :
3406       //        getNextToken();
3407       //        break;
3408       default :
3409         throwSyntaxError("Static scalar/constant expected.");
3410     }
3411   }
3412   private void non_empty_static_array_pair_list() {
3413     //  non_empty_static_array_pair_list:
3414     //  non_empty_static_array_pair_list ',' static_scalar T_DOUBLE_ARROW
3415     // static_scalar
3416     //| non_empty_static_array_pair_list ',' static_scalar
3417     //| static_scalar T_DOUBLE_ARROW static_scalar
3418     //| static_scalar
3419     while (true) {
3420       static_scalar();
3421       if (token == TokenNameEQUAL_GREATER) {
3422         getNextToken();
3423         static_scalar();
3424       }
3425       if (token != TokenNameCOMMA) {
3426         break;
3427       }
3428       getNextToken();
3429       if (token == TokenNameRPAREN) {
3430         break;
3431       }
3432     }
3433   }
3434   public void reportSyntaxError() { //int act, int currentKind, int
3435     // stateStackTop) {
3436     /* remember current scanner position */
3437     int startPos = scanner.startPosition;
3438     int currentPos = scanner.currentPosition;
3439     //          String[] expectings;
3440     //          String tokenName = name[symbol_index[currentKind]];
3441     //fetch all "accurate" possible terminals that could recover the error
3442     //          int start, end = start = asi(stack[stateStackTop]);
3443     //          while (asr[end] != 0)
3444     //                  end++;
3445     //          int length = end - start;
3446     //          expectings = new String[length];
3447     //          if (length != 0) {
3448     //                  char[] indexes = new char[length];
3449     //                  System.arraycopy(asr, start, indexes, 0, length);
3450     //                  for (int i = 0; i < length; i++) {
3451     //                          expectings[i] = name[symbol_index[indexes[i]]];
3452     //                  }
3453     //          }
3454     //if the pb is an EOF, try to tell the user that they are some
3455     //          if (tokenName.equals(UNEXPECTED_EOF)) {
3456     //                  if (!this.checkAndReportBracketAnomalies(problemReporter())) {
3457     //                          char[] tokenSource;
3458     //                          try {
3459     //                                  tokenSource = this.scanner.getCurrentTokenSource();
3460     //                          } catch (Exception e) {
3461     //                                  tokenSource = new char[] {};
3462     //                          }
3463     //                          problemReporter().parseError(
3464     //                                  this.scanner.startPosition,
3465     //                                  this.scanner.currentPosition - 1,
3466     //                                  tokenSource,
3467     //                                  tokenName,
3468     //                                  expectings);
3469     //                  }
3470     //          } else { //the next test is HEAVILY grammar DEPENDENT.
3471     //                  if ((length == 14)
3472     //                          && (expectings[0] == "=") //$NON-NLS-1$
3473     //                          && (expectings[1] == "*=") //$NON-NLS-1$
3474     //                          && (expressionPtr > -1)) {
3475     //                                  switch(currentKind) {
3476     //                                          case TokenNameSEMICOLON:
3477     //                                          case TokenNamePLUS:
3478     //                                          case TokenNameMINUS:
3479     //                                          case TokenNameDIVIDE:
3480     //                                          case TokenNameREMAINDER:
3481     //                                          case TokenNameMULTIPLY:
3482     //                                          case TokenNameLEFT_SHIFT:
3483     //                                          case TokenNameRIGHT_SHIFT:
3484     //// case TokenNameUNSIGNED_RIGHT_SHIFT:
3485     //                                          case TokenNameLESS:
3486     //                                          case TokenNameGREATER:
3487     //                                          case TokenNameLESS_EQUAL:
3488     //                                          case TokenNameGREATER_EQUAL:
3489     //                                          case TokenNameEQUAL_EQUAL:
3490     //                                          case TokenNameNOT_EQUAL:
3491     //                                          case TokenNameXOR:
3492     //                                          case TokenNameAND:
3493     //                                          case TokenNameOR:
3494     //                                          case TokenNameOR_OR:
3495     //                                          case TokenNameAND_AND:
3496     //                                                  // the ; is not the expected token ==> it ends a statement when an
3497     // expression is not ended
3498     //                                                  problemReporter().invalidExpressionAsStatement(expressionStack[expressionPtr]);
3499     //                                                  break;
3500     //                                          case TokenNameRBRACE :
3501     //                                                  problemReporter().missingSemiColon(expressionStack[expressionPtr]);
3502     //                                                  break;
3503     //                                          default:
3504     //                                                  char[] tokenSource;
3505     //                                                  try {
3506     //                                                          tokenSource = this.scanner.getCurrentTokenSource();
3507     //                                                  } catch (Exception e) {
3508     //                                                          tokenSource = new char[] {};
3509     //                                                  }
3510     //                                                  problemReporter().parseError(
3511     //                                                          this.scanner.startPosition,
3512     //                                                          this.scanner.currentPosition - 1,
3513     //                                                          tokenSource,
3514     //                                                          tokenName,
3515     //                                                          expectings);
3516     //                                                  this.checkAndReportBracketAnomalies(problemReporter());
3517     //                                  }
3518     //                  } else {
3519     char[] tokenSource;
3520     try {
3521       tokenSource = this.scanner.getCurrentTokenSource();
3522     } catch (Exception e) {
3523       tokenSource = new char[]{};
3524     }
3525     //                          problemReporter().parseError(
3526     //                                  this.scanner.startPosition,
3527     //                                  this.scanner.currentPosition - 1,
3528     //                                  tokenSource,
3529     //                                  tokenName,
3530     //                                  expectings);
3531     this.checkAndReportBracketAnomalies(problemReporter());
3532     //                  }
3533     //          }
3534     /* reset scanner where it was */
3535     scanner.startPosition = startPos;
3536     scanner.currentPosition = currentPos;
3537   }
3538   public static final int RoundBracket = 0;
3539   public static final int SquareBracket = 1;
3540   public static final int CurlyBracket = 2;
3541   public static final int BracketKinds = 3;
3542   protected int[] nestedMethod; //the ptr is nestedType
3543   protected int nestedType, dimensions;
3544   //ast stack
3545   final static int AstStackIncrement = 100;
3546   protected int astPtr;
3547   protected AstNode[] astStack = new AstNode[AstStackIncrement];
3548   protected int astLengthPtr;
3549   protected int[] astLengthStack;
3550   AstNode[] noAstNodes = new AstNode[AstStackIncrement];
3551   public CompilationUnitDeclaration compilationUnit; /*
3552                                                       * the result from parse()
3553                                                       */
3554   protected ReferenceContext referenceContext;
3555   protected ProblemReporter problemReporter;
3556   protected CompilerOptions options;
3557   private ArrayList includesList;
3558   //  protected CompilationResult compilationResult;
3559   /**
3560    * Returns this parser's problem reporter initialized with its reference
3561    * context. Also it is assumed that a problem is going to be reported, so
3562    * initializes the compilation result's line positions.
3563    */
3564   public ProblemReporter problemReporter() {
3565     if (scanner.recordLineSeparator) {
3566       compilationUnit.compilationResult.lineSeparatorPositions = scanner.getLineEnds();
3567     }
3568     problemReporter.referenceContext = referenceContext;
3569     return problemReporter;
3570   }
3571   /*
3572    * Reconsider the entire source looking for inconsistencies in {} () []
3573    */
3574   public boolean checkAndReportBracketAnomalies(ProblemReporter problemReporter) {
3575     scanner.wasAcr = false;
3576     boolean anomaliesDetected = false;
3577     try {
3578       char[] source = scanner.source;
3579       int[] leftCount = {0, 0, 0};
3580       int[] rightCount = {0, 0, 0};
3581       int[] depths = {0, 0, 0};
3582       int[][] leftPositions = new int[][]{new int[10], new int[10], new int[10]};
3583       int[][] leftDepths = new int[][]{new int[10], new int[10], new int[10]};
3584       int[][] rightPositions = new int[][]{new int[10], new int[10], new int[10]};
3585       int[][] rightDepths = new int[][]{new int[10], new int[10], new int[10]};
3586       scanner.currentPosition = scanner.initialPosition; //starting
3587       // point
3588       // (first-zero-based
3589       // char)
3590       while (scanner.currentPosition < scanner.eofPosition) { //loop for
3591         // jumping
3592         // over
3593         // comments
3594         try {
3595           // ---------Consume white space and handles
3596           // startPosition---------
3597           boolean isWhiteSpace;
3598           do {
3599             scanner.startPosition = scanner.currentPosition;
3600             //                                          if (((scanner.currentCharacter =
3601             // source[scanner.currentPosition++]) == '\\') &&
3602             // (source[scanner.currentPosition] == 'u')) {
3603             //                                                  isWhiteSpace = scanner.jumpOverUnicodeWhiteSpace();
3604             //                                          } else {
3605             if (scanner.recordLineSeparator && ((scanner.currentCharacter == '\r') || (scanner.currentCharacter == '\n'))) {
3606               if (scanner.lineEnds[scanner.linePtr] < scanner.startPosition) {
3607                 // only record line positions we have not
3608                 // recorded yet
3609                 scanner.pushLineSeparator();
3610               }
3611             }
3612             isWhiteSpace = CharOperation.isWhitespace(scanner.currentCharacter);
3613             //                                          }
3614           } while (isWhiteSpace && (scanner.currentPosition < scanner.eofPosition));
3615           // -------consume token until } is found---------
3616           switch (scanner.currentCharacter) {
3617             case '{' : {
3618               int index = leftCount[CurlyBracket]++;
3619               if (index == leftPositions[CurlyBracket].length) {
3620                 System.arraycopy(leftPositions[CurlyBracket], 0, (leftPositions[CurlyBracket] = new int[index * 2]), 0, index);
3621                 System.arraycopy(leftDepths[CurlyBracket], 0, (leftDepths[CurlyBracket] = new int[index * 2]), 0, index);
3622               }
3623               leftPositions[CurlyBracket][index] = scanner.startPosition;
3624               leftDepths[CurlyBracket][index] = depths[CurlyBracket]++;
3625             }
3626               break;
3627             case '}' : {
3628               int index = rightCount[CurlyBracket]++;
3629               if (index == rightPositions[CurlyBracket].length) {
3630                 System.arraycopy(rightPositions[CurlyBracket], 0, (rightPositions[CurlyBracket] = new int[index * 2]), 0, index);
3631                 System.arraycopy(rightDepths[CurlyBracket], 0, (rightDepths[CurlyBracket] = new int[index * 2]), 0, index);
3632               }
3633               rightPositions[CurlyBracket][index] = scanner.startPosition;
3634               rightDepths[CurlyBracket][index] = --depths[CurlyBracket];
3635             }
3636               break;
3637             case '(' : {
3638               int index = leftCount[RoundBracket]++;
3639               if (index == leftPositions[RoundBracket].length) {
3640                 System.arraycopy(leftPositions[RoundBracket], 0, (leftPositions[RoundBracket] = new int[index * 2]), 0, index);
3641                 System.arraycopy(leftDepths[RoundBracket], 0, (leftDepths[RoundBracket] = new int[index * 2]), 0, index);
3642               }
3643               leftPositions[RoundBracket][index] = scanner.startPosition;
3644               leftDepths[RoundBracket][index] = depths[RoundBracket]++;
3645             }
3646               break;
3647             case ')' : {
3648               int index = rightCount[RoundBracket]++;
3649               if (index == rightPositions[RoundBracket].length) {
3650                 System.arraycopy(rightPositions[RoundBracket], 0, (rightPositions[RoundBracket] = new int[index * 2]), 0, index);
3651                 System.arraycopy(rightDepths[RoundBracket], 0, (rightDepths[RoundBracket] = new int[index * 2]), 0, index);
3652               }
3653               rightPositions[RoundBracket][index] = scanner.startPosition;
3654               rightDepths[RoundBracket][index] = --depths[RoundBracket];
3655             }
3656               break;
3657             case '[' : {
3658               int index = leftCount[SquareBracket]++;
3659               if (index == leftPositions[SquareBracket].length) {
3660                 System.arraycopy(leftPositions[SquareBracket], 0, (leftPositions[SquareBracket] = new int[index * 2]), 0, index);
3661                 System.arraycopy(leftDepths[SquareBracket], 0, (leftDepths[SquareBracket] = new int[index * 2]), 0, index);
3662               }
3663               leftPositions[SquareBracket][index] = scanner.startPosition;
3664               leftDepths[SquareBracket][index] = depths[SquareBracket]++;
3665             }
3666               break;
3667             case ']' : {
3668               int index = rightCount[SquareBracket]++;
3669               if (index == rightPositions[SquareBracket].length) {
3670                 System.arraycopy(rightPositions[SquareBracket], 0, (rightPositions[SquareBracket] = new int[index * 2]), 0, index);
3671                 System.arraycopy(rightDepths[SquareBracket], 0, (rightDepths[SquareBracket] = new int[index * 2]), 0, index);
3672               }
3673               rightPositions[SquareBracket][index] = scanner.startPosition;
3674               rightDepths[SquareBracket][index] = --depths[SquareBracket];
3675             }
3676               break;
3677             case '\'' : {
3678               if (scanner.getNextChar('\\')) {
3679                 scanner.scanEscapeCharacter();
3680               } else { // consume next character
3681                 scanner.unicodeAsBackSlash = false;
3682                 //                                                                      if (((scanner.currentCharacter =
3683                 // source[scanner.currentPosition++]) ==
3684                 // '\\') &&
3685                 // (source[scanner.currentPosition] ==
3686                 // 'u')) {
3687                 //                                                                              scanner.getNextUnicodeChar();
3688                 //                                                                      } else {
3689                 if (scanner.withoutUnicodePtr != 0) {
3690                   scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
3691                 }
3692                 //                                                                      }
3693               }
3694               scanner.getNextChar('\'');
3695               break;
3696             }
3697             case '"' :
3698               // consume next character
3699               scanner.unicodeAsBackSlash = false;
3700               //                                                        if (((scanner.currentCharacter =
3701               // source[scanner.currentPosition++]) == '\\') &&
3702               // (source[scanner.currentPosition] == 'u')) {
3703               //                                                                scanner.getNextUnicodeChar();
3704               //                                                        } else {
3705               if (scanner.withoutUnicodePtr != 0) {
3706                 scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
3707               }
3708               //                                                        }
3709               while (scanner.currentCharacter != '"') {
3710                 if (scanner.currentCharacter == '\r') {
3711                   if (source[scanner.currentPosition] == '\n')
3712                     scanner.currentPosition++;
3713                   break; // the string cannot go further that
3714                   // the line
3715                 }
3716                 if (scanner.currentCharacter == '\n') {
3717                   break; // the string cannot go further that
3718                   // the line
3719                 }
3720                 if (scanner.currentCharacter == '\\') {
3721                   scanner.scanEscapeCharacter();
3722                 }
3723                 // consume next character
3724                 scanner.unicodeAsBackSlash = false;
3725                 //                                                              if (((scanner.currentCharacter =
3726                 // source[scanner.currentPosition++]) == '\\')
3727                 // && (source[scanner.currentPosition] == 'u'))
3728                 // {
3729                 //                                                                      scanner.getNextUnicodeChar();
3730                 //                                                              } else {
3731                 if (scanner.withoutUnicodePtr != 0) {
3732                   scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
3733                 }
3734                 //                                                              }
3735               }
3736               break;
3737             case '/' : {
3738               int test;
3739               if ((test = scanner.getNextChar('/', '*')) == 0) { //line
3740                 // comment
3741                 //get the next char
3742                 if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
3743                     && (source[scanner.currentPosition] == 'u')) {
3744                   //-------------unicode traitement
3745                   // ------------
3746                   int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
3747                   scanner.currentPosition++;
3748                   while (source[scanner.currentPosition] == 'u') {
3749                     scanner.currentPosition++;
3750                   }
3751                   if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
3752                       || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
3753                       || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
3754                       || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
3755                                                                                                                // don't
3756                     // care of the
3757                     // value
3758                     scanner.currentCharacter = 'A';
3759                   } //something different from \n and \r
3760                   else {
3761                     scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
3762                   }
3763                 }
3764                 while (scanner.currentCharacter != '\r' && scanner.currentCharacter != '\n') {
3765                   //get the next char
3766                   scanner.startPosition = scanner.currentPosition;
3767                   if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
3768                       && (source[scanner.currentPosition] == 'u')) {
3769                     //-------------unicode traitement
3770                     // ------------
3771                     int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
3772                     scanner.currentPosition++;
3773                     while (source[scanner.currentPosition] == 'u') {
3774                       scanner.currentPosition++;
3775                     }
3776                     if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
3777                         || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
3778                         || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
3779                         || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
3780                                                                                                                  // don't
3781                       // care of the
3782                       // value
3783                       scanner.currentCharacter = 'A';
3784                     } //something different from \n
3785                     // and \r
3786                     else {
3787                       scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
3788                     }
3789                   }
3790                 }
3791                 if (scanner.recordLineSeparator && ((scanner.currentCharacter == '\r') || (scanner.currentCharacter == '\n'))) {
3792                   if (scanner.lineEnds[scanner.linePtr] < scanner.startPosition) {
3793                     // only record line positions we
3794                     // have not recorded yet
3795                     scanner.pushLineSeparator();
3796                     if (this.scanner.taskTags != null) {
3797                       this.scanner.checkTaskTag(this.scanner.getCurrentTokenStartPosition(), this.scanner
3798                           .getCurrentTokenEndPosition());
3799                     }
3800                   }
3801                 }
3802                 break;
3803               }
3804               if (test > 0) { //traditional and annotation
3805                 // comment
3806                 boolean star = false;
3807                 // consume next character
3808                 scanner.unicodeAsBackSlash = false;
3809                 //                                                                      if (((scanner.currentCharacter =
3810                 // source[scanner.currentPosition++]) ==
3811                 // '\\') &&
3812                 // (source[scanner.currentPosition] ==
3813                 // 'u')) {
3814                 //                                                                              scanner.getNextUnicodeChar();
3815                 //                                                                      } else {
3816                 if (scanner.withoutUnicodePtr != 0) {
3817                   scanner.withoutUnicodeBuffer[++scanner.withoutUnicodePtr] = scanner.currentCharacter;
3818                 }
3819                 //                                                                      }
3820                 if (scanner.currentCharacter == '*') {
3821                   star = true;
3822                 }
3823                 //get the next char
3824                 if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
3825                     && (source[scanner.currentPosition] == 'u')) {
3826                   //-------------unicode traitement
3827                   // ------------
3828                   int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
3829                   scanner.currentPosition++;
3830                   while (source[scanner.currentPosition] == 'u') {
3831                     scanner.currentPosition++;
3832                   }
3833                   if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
3834                       || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
3835                       || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
3836                       || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
3837                                                                                                                // don't
3838                     // care of the
3839                     // value
3840                     scanner.currentCharacter = 'A';
3841                   } //something different from * and /
3842                   else {
3843                     scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
3844                   }
3845                 }
3846                 //loop until end of comment */
3847                 while ((scanner.currentCharacter != '/') || (!star)) {
3848                   star = scanner.currentCharacter == '*';
3849                   //get next char
3850                   if (((scanner.currentCharacter = source[scanner.currentPosition++]) == '\\')
3851                       && (source[scanner.currentPosition] == 'u')) {
3852                     //-------------unicode traitement
3853                     // ------------
3854                     int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
3855                     scanner.currentPosition++;
3856                     while (source[scanner.currentPosition] == 'u') {
3857                       scanner.currentPosition++;
3858                     }
3859                     if ((c1 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c1 < 0
3860                         || (c2 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c2 < 0
3861                         || (c3 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c3 < 0
3862                         || (c4 = Character.getNumericValue(source[scanner.currentPosition++])) > 15 || c4 < 0) { //error
3863                                                                                                                  // don't
3864                       // care of the
3865                       // value
3866                       scanner.currentCharacter = 'A';
3867                     } //something different from * and
3868                     // /
3869                     else {
3870                       scanner.currentCharacter = (char) (((c1 * 16 + c2) * 16 + c3) * 16 + c4);
3871                     }
3872                   }
3873                 }
3874                 if (this.scanner.taskTags != null) {
3875                   this.scanner.checkTaskTag(this.scanner.getCurrentTokenStartPosition(), this.scanner.getCurrentTokenEndPosition());
3876                 }
3877                 break;
3878               }
3879               break;
3880             }
3881             default :
3882               if (Scanner.isPHPIdentifierStart(scanner.currentCharacter)) {
3883                 scanner.scanIdentifierOrKeyword(false);
3884                 break;
3885               }
3886               if (Character.isDigit(scanner.currentCharacter)) {
3887                 scanner.scanNumber(false);
3888                 break;
3889               }
3890           }
3891           //-----------------end switch while
3892           // try--------------------
3893         } catch (IndexOutOfBoundsException e) {
3894           break; // read until EOF
3895         } catch (InvalidInputException e) {
3896           return false; // no clue
3897         }
3898       }
3899       if (scanner.recordLineSeparator) {
3900         //                              compilationUnit.compilationResult.lineSeparatorPositions =
3901         // scanner.getLineEnds();
3902       }
3903       // check placement anomalies against other kinds of brackets
3904       for (int kind = 0; kind < BracketKinds; kind++) {
3905         for (int leftIndex = leftCount[kind] - 1; leftIndex >= 0; leftIndex--) {
3906           int start = leftPositions[kind][leftIndex]; // deepest
3907           // first
3908           // find matching closing bracket
3909           int depth = leftDepths[kind][leftIndex];
3910           int end = -1;
3911           for (int i = 0; i < rightCount[kind]; i++) {
3912             int pos = rightPositions[kind][i];
3913             // want matching bracket further in source with same
3914             // depth
3915             if ((pos > start) && (depth == rightDepths[kind][i])) {
3916               end = pos;
3917               break;
3918             }
3919           }
3920           if (end < 0) { // did not find a good closing match
3921             problemReporter.unmatchedBracket(start, referenceContext, compilationUnit.compilationResult);
3922             return true;
3923           }
3924           // check if even number of opening/closing other brackets
3925           // in between this pair of brackets
3926           int balance = 0;
3927           for (int otherKind = 0; (balance == 0) && (otherKind < BracketKinds); otherKind++) {
3928             for (int i = 0; i < leftCount[otherKind]; i++) {
3929               int pos = leftPositions[otherKind][i];
3930               if ((pos > start) && (pos < end))
3931                 balance++;
3932             }
3933             for (int i = 0; i < rightCount[otherKind]; i++) {
3934               int pos = rightPositions[otherKind][i];
3935               if ((pos > start) && (pos < end))
3936                 balance--;
3937             }
3938             if (balance != 0) {
3939               problemReporter.unmatchedBracket(start, referenceContext, compilationUnit.compilationResult); //bracket
3940               // anomaly
3941               return true;
3942             }
3943           }
3944         }
3945         // too many opening brackets ?
3946         for (int i = rightCount[kind]; i < leftCount[kind]; i++) {
3947           anomaliesDetected = true;
3948           problemReporter.unmatchedBracket(leftPositions[kind][leftCount[kind] - i - 1], referenceContext,
3949               compilationUnit.compilationResult);
3950         }
3951         // too many closing brackets ?
3952         for (int i = leftCount[kind]; i < rightCount[kind]; i++) {
3953           anomaliesDetected = true;
3954           problemReporter.unmatchedBracket(rightPositions[kind][i], referenceContext, compilationUnit.compilationResult);
3955         }
3956         if (anomaliesDetected)
3957           return true;
3958       }
3959       return anomaliesDetected;
3960     } catch (ArrayStoreException e) { // jdk1.2.2 jit bug
3961       return anomaliesDetected;
3962     } catch (NullPointerException e) { // jdk1.2.2 jit bug
3963       return anomaliesDetected;
3964     }
3965   }
3966   protected void pushOnAstLengthStack(int pos) {
3967     try {
3968       astLengthStack[++astLengthPtr] = pos;
3969     } catch (IndexOutOfBoundsException e) {
3970       int oldStackLength = astLengthStack.length;
3971       int[] oldPos = astLengthStack;
3972       astLengthStack = new int[oldStackLength + StackIncrement];
3973       System.arraycopy(oldPos, 0, astLengthStack, 0, oldStackLength);
3974       astLengthStack[astLengthPtr] = pos;
3975     }
3976   }
3977   protected void pushOnAstStack(AstNode node) {
3978     /*
3979      * add a new obj on top of the ast stack
3980      */
3981     try {
3982       astStack[++astPtr] = node;
3983     } catch (IndexOutOfBoundsException e) {
3984       int oldStackLength = astStack.length;
3985       AstNode[] oldStack = astStack;
3986       astStack = new AstNode[oldStackLength + AstStackIncrement];
3987       System.arraycopy(oldStack, 0, astStack, 0, oldStackLength);
3988       astPtr = oldStackLength;
3989       astStack[astPtr] = node;
3990     }
3991     try {
3992       astLengthStack[++astLengthPtr] = 1;
3993     } catch (IndexOutOfBoundsException e) {
3994       int oldStackLength = astLengthStack.length;
3995       int[] oldPos = astLengthStack;
3996       astLengthStack = new int[oldStackLength + AstStackIncrement];
3997       System.arraycopy(oldPos, 0, astLengthStack, 0, oldStackLength);
3998       astLengthStack[astLengthPtr] = 1;
3999     }
4000   }
4001
4002   protected void resetModifiers() {
4003     this.modifiers = AccDefault;
4004     this.modifiersSourceStart = -1; // <-- see comment into
4005     // modifiersFlag(int)
4006     this.scanner.commentPtr = -1;
4007   }
4008 }