net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/compiler/SourceElementParser.java

   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.compiler;
  12
  13 import java.util.ArrayList;
  14
  15 import net.sourceforge.phpdt.core.compiler.CharOperation;
  16 import net.sourceforge.phpdt.core.compiler.IProblem;
  17 import net.sourceforge.phpdt.internal.compiler.env.ICompilationUnit;
  18 import net.sourceforge.phpdt.internal.compiler.env.ISourceType;
  19 import net.sourceforge.phpdt.internal.compiler.impl.CompilerOptions;
  20 import net.sourceforge.phpdt.internal.compiler.impl.ReferenceContext;
  21 import net.sourceforge.phpdt.internal.compiler.lookup.BlockScope;
  22 import net.sourceforge.phpdt.internal.compiler.lookup.ClassScope;
  23 import net.sourceforge.phpdt.internal.compiler.problem.AbortCompilation;
  24 import net.sourceforge.phpdt.internal.compiler.problem.ProblemReporter;
  25 import net.sourceforge.phpdt.internal.core.util.CommentRecorderParser;
  26 import net.sourceforge.phpeclipse.internal.compiler.ast.AbstractMethodDeclaration;
  27 import net.sourceforge.phpeclipse.internal.compiler.ast.AnonymousLocalTypeDeclaration;
  28 import net.sourceforge.phpeclipse.internal.compiler.ast.Argument;
  29 import net.sourceforge.phpeclipse.internal.compiler.ast.ASTNode;
  30 import net.sourceforge.phpeclipse.internal.compiler.ast.CompilationUnitDeclaration;
  31 import net.sourceforge.phpeclipse.internal.compiler.ast.ConstructorDeclaration;
  32 import net.sourceforge.phpeclipse.internal.compiler.ast.ExplicitConstructorCall;
  33 import net.sourceforge.phpeclipse.internal.compiler.ast.FieldDeclaration;
  34 import net.sourceforge.phpeclipse.internal.compiler.ast.ImportReference;
  35 import net.sourceforge.phpeclipse.internal.compiler.ast.LocalTypeDeclaration;
  36 import net.sourceforge.phpeclipse.internal.compiler.ast.MemberTypeDeclaration;
  37 import net.sourceforge.phpeclipse.internal.compiler.ast.MethodDeclaration;
  38 import net.sourceforge.phpeclipse.internal.compiler.ast.NameReference;
  39 import net.sourceforge.phpeclipse.internal.compiler.ast.QualifiedAllocationExpression;
  40 import net.sourceforge.phpeclipse.internal.compiler.ast.TypeDeclaration;
  41 import net.sourceforge.phpeclipse.internal.compiler.ast.TypeReference;
  42
  43 /**
  44  * A source element parser extracts structural and reference information
  45  * from a piece of source.
  46  *
  47  * also see @ISourceElementRequestor
  48  *
  49  * The structural investigation includes:
  50  * - the package statement
  51  * - import statements
  52  * - top-level types: package member, member types (member types of member types...)
  53  * - fields
  54  * - methods
  55  *
  56  * If reference information is requested, then all source constructs are
  57  * investigated and type, field & method references are provided as well.
  58  *
  59  * Any (parsing) problem encountered is also provided.
  60  */
  61
  62 public class SourceElementParser extends CommentRecorderParser {//extends
  63                                                                 // UnitParser {
  64
  65   ISourceElementRequestor requestor;
  66   int fieldCount;
  67   int localIntPtr;
  68   int lastFieldEndPosition;
  69   ISourceType sourceType;
  70   boolean reportReferenceInfo;
  71   char[][] typeNames;
  72   char[][] superTypeNames;
  73   int nestedTypeIndex;
  74   static final char[] JAVA_LANG_OBJECT = "java.lang.Object".toCharArray(); //$NON-NLS-1$
  75   NameReference[] unknownRefs;
  76   int unknownRefsCounter;
  77   LocalDeclarationVisitor localDeclarationVisitor = null;
  78   //    CompilerOptions options;
  79
  80   /**
  81    * An ast visitor that visits local type declarations.
  82    */
  83   public class LocalDeclarationVisitor extends AbstractSyntaxTreeVisitorAdapter {
  84     //  public boolean visit(
  85     //                  AnonymousLocalTypeDeclaration anonymousTypeDeclaration,
  86     //                  BlockScope scope) {
  87     //          notifySourceElementRequestor(anonymousTypeDeclaration, sourceType ==
  88     // null);
  89     //          return false; // don't visit members as this was done during
  90     // notifySourceElementRequestor(...)
  91     //  }
  92     public boolean visit(LocalTypeDeclaration typeDeclaration, BlockScope scope) {
  93       notifySourceElementRequestor(typeDeclaration, sourceType == null);
  94       return false; // don't visit members as this was done during
  95                     // notifySourceElementRequestor(...)
  96     }
  97     public boolean visit(MemberTypeDeclaration typeDeclaration, ClassScope scope) {
  98       notifySourceElementRequestor(typeDeclaration, sourceType == null);
  99       return false; // don't visit members as this was done during
 100                     // notifySourceElementRequestor(...)
 101     }
 102
 103   }
 104
 105   public SourceElementParser(final ISourceElementRequestor requestor, IProblemFactory problemFactory, CompilerOptions options) {
 106     // we want to notify all syntax error with the acceptProblem API
 107     // To do so, we define the record method of the ProblemReporter
 108     super(new ProblemReporter(DefaultErrorHandlingPolicies.exitAfterAllProblems(), options, problemFactory) {
 109       public void record(IProblem problem, CompilationResult unitResult, ReferenceContext referenceContext) {
 110         unitResult.record(problem, referenceContext);
 111         if (requestor!=null) {
 112           requestor.acceptProblem(problem);
 113         }
 114       }
 115     });
 116     //  true);
 117     //  options.sourceLevel >= CompilerOptions.JDK1_4);
 118     this.requestor = requestor;
 119     typeNames = new char[4][];
 120     superTypeNames = new char[4][];
 121     nestedTypeIndex = 0;
 122     this.options = options;
 123   }
 124
 125   /**
 126    * @deprecated use SourceElementParser(ISourceElementRequestor,
 127    *             IProblemFactory, CompilerOptions)
 128    */
 129   //public SourceElementParser(
 130   //    final ISourceElementRequestor requestor,
 131   //    IProblemFactory problemFactory) {
 132   //            this(requestor, problemFactory, new CompilerOptions());
 133   //}
 134   //public SourceElementParser(
 135   //    final ISourceElementRequestor requestor,
 136   //    IProblemFactory problemFactory,
 137   //    CompilerOptions options,
 138   //    boolean reportLocalDeclarations) {
 139   //            this(requestor, problemFactory, options);
 140   //            if (reportLocalDeclarations) {
 141   //                    this.localDeclarationVisitor = new LocalDeclarationVisitor();
 142   //            }
 143   //}
 144   //public void checkAnnotation() {
 145   //    int firstCommentIndex = scanner.commentPtr;
 146   //
 147   //    super.checkAnnotation();
 148   //
 149   //    // modify the modifier source start to point at the first comment
 150   //    if (firstCommentIndex >= 0) {
 151   //            modifiersSourceStart = scanner.commentStarts[0];
 152   //    }
 153   //}
 154   //protected void classInstanceCreation(boolean alwaysQualified) {
 155   //
 156   //    boolean previousFlag = reportReferenceInfo;
 157   //    reportReferenceInfo = false; // not to see the type reference reported in
 158   // super call to getTypeReference(...)
 159   //    super.classInstanceCreation(alwaysQualified);
 160   //    reportReferenceInfo = previousFlag;
 161   //    if (reportReferenceInfo){
 162   //            AllocationExpression alloc =
 163   // (AllocationExpression)expressionStack[expressionPtr];
 164   //            TypeReference typeRef = alloc.type;
 165   //            requestor.acceptConstructorReference(
 166   //                    typeRef instanceof SingleTypeReference
 167   //                            ? ((SingleTypeReference) typeRef).token
 168   //                            : CharOperation.concatWith(alloc.type.getTypeName(), '.'),
 169   //                    alloc.arguments == null ? 0 : alloc.arguments.length,
 170   //                    alloc.sourceStart);
 171   //    }
 172   //}
 173   //protected void consumeConstructorHeaderName() {
 174   //    // ConstructorHeaderName ::= Modifiersopt 'Identifier' '('
 175   //
 176   //    /* recovering - might be an empty message send */
 177   //    if (currentElement != null){
 178   //            if (lastIgnoredToken == TokenNamenew){ // was an allocation expression
 179   //                    lastCheckPoint = scanner.startPosition; // force to restart at this exact
 180   // position
 181   //                    restartRecovery = true;
 182   //                    return;
 183   //            }
 184   //    }
 185   //    SourceConstructorDeclaration cd = new
 186   // SourceConstructorDeclaration(this.compilationUnit.compilationResult);
 187   //
 188   //    //name -- this is not really revelant but we do .....
 189   //    cd.selector = identifierStack[identifierPtr];
 190   //    long selectorSourcePositions = identifierPositionStack[identifierPtr--];
 191   //    identifierLengthPtr--;
 192   //
 193   //    //modifiers
 194   //    cd.declarationSourceStart = intStack[intPtr--];
 195   //    cd.modifiers = intStack[intPtr--];
 196   //
 197   //    //highlight starts at the selector starts
 198   //    cd.sourceStart = (int) (selectorSourcePositions >>> 32);
 199   //    cd.selectorSourceEnd = (int) selectorSourcePositions;
 200   //    pushOnAstStack(cd);
 201   //
 202   //    cd.sourceEnd = lParenPos;
 203   //    cd.bodyStart = lParenPos+1;
 204   //    listLength = 0; // initialize listLength before reading parameters/throws
 205   //
 206   //    // recovery
 207   //    if (currentElement != null){
 208   //            lastCheckPoint = cd.bodyStart;
 209   //            if ((currentElement instanceof RecoveredType && lastIgnoredToken !=
 210   // TokenNameDOT)
 211   //                    || cd.modifiers != 0){
 212   //                    currentElement = currentElement.add(cd, 0);
 213   //                    lastIgnoredToken = -1;
 214   //            }
 215   //    }
 216   //}
 217   ///**
 218   // *
 219   // * INTERNAL USE-ONLY
 220   // */
 221   //protected void consumeExitVariableWithInitialization() {
 222   //    // ExitVariableWithInitialization ::= $empty
 223   //    // the scanner is located after the comma or the semi-colon.
 224   //    // we want to include the comma or the semi-colon
 225   //    super.consumeExitVariableWithInitialization();
 226   //    if (isLocalDeclaration() || ((currentToken != TokenNameCOMMA) &&
 227   // (currentToken != TokenNameSEMICOLON)))
 228   //            return;
 229   //    ((SourceFieldDeclaration) astStack[astPtr]).fieldEndPosition =
 230   // scanner.currentPosition - 1;
 231   //}
 232   //protected void consumeExitVariableWithoutInitialization() {
 233   //    // ExitVariableWithoutInitialization ::= $empty
 234   //    // do nothing by default
 235   //    super.consumeExitVariableWithoutInitialization();
 236   //    if (isLocalDeclaration() || ((currentToken != TokenNameCOMMA) &&
 237   // (currentToken != TokenNameSEMICOLON)))
 238   //            return;
 239   //    ((SourceFieldDeclaration) astStack[astPtr]).fieldEndPosition =
 240   // scanner.currentPosition - 1;
 241   //}
 242   ///**
 243   // *
 244   // * INTERNAL USE-ONLY
 245   // */
 246   //protected void consumeFieldAccess(boolean isSuperAccess) {
 247   //    // FieldAccess ::= Primary '.' 'Identifier'
 248   //    // FieldAccess ::= 'super' '.' 'Identifier'
 249   //    super.consumeFieldAccess(isSuperAccess);
 250   //    FieldReference fr = (FieldReference) expressionStack[expressionPtr];
 251   //    if (reportReferenceInfo) {
 252   //            requestor.acceptFieldReference(fr.token, fr.sourceStart);
 253   //    }
 254   //}
 255   //protected void consumeMethodHeaderName() {
 256   //    // MethodHeaderName ::= Modifiersopt Type 'Identifier' '('
 257   //    SourceMethodDeclaration md = new
 258   // SourceMethodDeclaration(this.compilationUnit.compilationResult);
 259   //
 260   //    //name
 261   //    md.selector = identifierStack[identifierPtr];
 262   //    long selectorSourcePositions = identifierPositionStack[identifierPtr--];
 263   //    identifierLengthPtr--;
 264   //    //type
 265   //    md.returnType = getTypeReference(intStack[intPtr--]);
 266   //    //modifiers
 267   //    md.declarationSourceStart = intStack[intPtr--];
 268   //    md.modifiers = intStack[intPtr--];
 269   //
 270   //    //highlight starts at selector start
 271   //    md.sourceStart = (int) (selectorSourcePositions >>> 32);
 272   //    md.selectorSourceEnd = (int) selectorSourcePositions;
 273   //    pushOnAstStack(md);
 274   //    md.sourceEnd = lParenPos;
 275   //    md.bodyStart = lParenPos+1;
 276   //    listLength = 0; // initialize listLength before reading parameters/throws
 277   //
 278   //    // recovery
 279   //    if (currentElement != null){
 280   //            if (currentElement instanceof RecoveredType
 281   //                    //|| md.modifiers != 0
 282   //                    || (scanner.getLineNumber(md.returnType.sourceStart)
 283   //                                    == scanner.getLineNumber(md.sourceStart))){
 284   //                    lastCheckPoint = md.bodyStart;
 285   //                    currentElement = currentElement.add(md, 0);
 286   //                    lastIgnoredToken = -1;
 287   //            } else {
 288   //                    lastCheckPoint = md.sourceStart;
 289   //                    restartRecovery = true;
 290   //            }
 291   //    }
 292   //}
 293   ///**
 294   // *
 295   // * INTERNAL USE-ONLY
 296   // */
 297   //protected void consumeMethodInvocationName() {
 298   //    // MethodInvocation ::= Name '(' ArgumentListopt ')'
 299   //
 300   //    // when the name is only an identifier...we have a message send to "this"
 301   // (implicit)
 302   //    super.consumeMethodInvocationName();
 303   //    MessageSend messageSend = (MessageSend) expressionStack[expressionPtr];
 304   //    Expression[] args = messageSend.arguments;
 305   //    if (reportReferenceInfo) {
 306   //            requestor.acceptMethodReference(
 307   //                    messageSend.selector,
 308   //                    args == null ? 0 : args.length,
 309   //                    (int)(messageSend.nameSourcePosition >>> 32));
 310   //    }
 311   //}
 312   ///**
 313   // *
 314   // * INTERNAL USE-ONLY
 315   // */
 316   //protected void consumeMethodInvocationPrimary() {
 317   //    super.consumeMethodInvocationPrimary();
 318   //    MessageSend messageSend = (MessageSend) expressionStack[expressionPtr];
 319   //    Expression[] args = messageSend.arguments;
 320   //    if (reportReferenceInfo) {
 321   //            requestor.acceptMethodReference(
 322   //                    messageSend.selector,
 323   //                    args == null ? 0 : args.length,
 324   //                    (int)(messageSend.nameSourcePosition >>> 32));
 325   //    }
 326   //}
 327   ///**
 328   // *
 329   // * INTERNAL USE-ONLY
 330   // */
 331   //protected void consumeMethodInvocationSuper() {
 332   //    // MethodInvocation ::= 'super' '.' 'Identifier' '(' ArgumentListopt ')'
 333   //    super.consumeMethodInvocationSuper();
 334   //    MessageSend messageSend = (MessageSend) expressionStack[expressionPtr];
 335   //    Expression[] args = messageSend.arguments;
 336   //    if (reportReferenceInfo) {
 337   //            requestor.acceptMethodReference(
 338   //                    messageSend.selector,
 339   //                    args == null ? 0 : args.length,
 340   //                    (int)(messageSend.nameSourcePosition >>> 32));
 341   //    }
 342   //}
 343   //protected void consumeSingleTypeImportDeclarationName() {
 344   //    // SingleTypeImportDeclarationName ::= 'import' Name
 345   //    /* push an ImportRef build from the last name
 346   //    stored in the identifier stack. */
 347   //
 348   //    super.consumeSingleTypeImportDeclarationName();
 349   //    ImportReference impt = (ImportReference)astStack[astPtr];
 350   //    if (reportReferenceInfo) {
 351   //            requestor.acceptTypeReference(impt.tokens, impt.sourceStart,
 352   // impt.sourceEnd);
 353   //    }
 354   //}
 355   //protected void consumeTypeImportOnDemandDeclarationName() {
 356   //    // TypeImportOnDemandDeclarationName ::= 'import' Name '.' '*'
 357   //    /* push an ImportRef build from the last name
 358   //    stored in the identifier stack. */
 359   //
 360   //    super.consumeTypeImportOnDemandDeclarationName();
 361   //    ImportReference impt = (ImportReference)astStack[astPtr];
 362   //    if (reportReferenceInfo) {
 363   //            requestor.acceptUnknownReference(impt.tokens, impt.sourceStart,
 364   // impt.sourceEnd);
 365   //    }
 366   //}
 367   //protected FieldDeclaration createFieldDeclaration(Expression
 368   // initialization, char[] name, int sourceStart, int sourceEnd) {
 369   //    return new SourceFieldDeclaration(null, name, sourceStart, sourceEnd);
 370   //}
 371   //protected CompilationUnitDeclaration endParse(int act) {
 372   //    if (sourceType != null) {
 373   //            if (sourceType.isInterface()) {
 374   //                    consumeInterfaceDeclaration();
 375   //            } else {
 376   //                    consumeClassDeclaration();
 377   //            }
 378   //    }
 379   //    if (compilationUnit != null) {
 380   //            CompilationUnitDeclaration result = super.endParse(act);
 381   //            return result;
 382   //    } else {
 383   //            return null;
 384   //    }
 385   //}
 386   /*
 387    * Flush annotations defined prior to a given positions.
 388    *
 389    * Note: annotations are stacked in syntactical order
 390    *
 391    * Either answer given <position>, or the end position of a comment line
 392    * immediately following the <position> (same line)
 393    *
 394    * e.g. void foo(){ } // end of method foo
 395    */
 396   //
 397   //public int flushAnnotationsDefinedPriorTo(int position) {
 398   //
 399   //    return lastFieldEndPosition =
 400   // super.flushAnnotationsDefinedPriorTo(position);
 401   //}
 402   //public TypeReference getTypeReference(int dim) {
 403   //    /* build a Reference on a variable that may be qualified or not
 404   //     * This variable is a type reference and dim will be its dimensions
 405   //     */
 406   //    int length;
 407   //    if ((length = identifierLengthStack[identifierLengthPtr--]) == 1) {
 408   //            // single variable reference
 409   //            if (dim == 0) {
 410   //                    SingleTypeReference ref =
 411   //                            new SingleTypeReference(
 412   //                                    identifierStack[identifierPtr],
 413   //                                    identifierPositionStack[identifierPtr--]);
 414   //                    if (reportReferenceInfo) {
 415   //                            requestor.acceptTypeReference(ref.token, ref.sourceStart);
 416   //                    }
 417   //                    return ref;
 418   //            } else {
 419   //                    ArrayTypeReference ref =
 420   //                            new ArrayTypeReference(
 421   //                                    identifierStack[identifierPtr],
 422   //                                    dim,
 423   //                                    identifierPositionStack[identifierPtr--]);
 424   //                    ref.sourceEnd = endPosition;
 425   //                    if (reportReferenceInfo) {
 426   //                            requestor.acceptTypeReference(ref.token, ref.sourceStart);
 427   //                    }
 428   //                    return ref;
 429   //            }
 430   //    } else {
 431   //            if (length < 0) { //flag for precompiled type reference on base types
 432   //                    TypeReference ref = TypeReference.baseTypeReference(-length, dim);
 433   //                    ref.sourceStart = intStack[intPtr--];
 434   //                    if (dim == 0) {
 435   //                            ref.sourceEnd = intStack[intPtr--];
 436   //                    } else {
 437   //                            intPtr--; // no need to use this position as it is an array
 438   //                            ref.sourceEnd = endPosition;
 439   //                    }
 440   //                    if (reportReferenceInfo){
 441   //                                    requestor.acceptTypeReference(ref.getTypeName(), ref.sourceStart,
 442   // ref.sourceEnd);
 443   //                    }
 444   //                    return ref;
 445   //            } else { //Qualified variable reference
 446   //                    char[][] tokens = new char[length][];
 447   //                    identifierPtr -= length;
 448   //                    long[] positions = new long[length];
 449   //                    System.arraycopy(identifierStack, identifierPtr + 1, tokens, 0, length);
 450   //                    System.arraycopy(
 451   //                            identifierPositionStack,
 452   //                            identifierPtr + 1,
 453   //                            positions,
 454   //                            0,
 455   //                            length);
 456   //                    if (dim == 0) {
 457   //                            QualifiedTypeReference ref = new QualifiedTypeReference(tokens, positions);
 458   //                            if (reportReferenceInfo) {
 459   //                                    requestor.acceptTypeReference(ref.tokens, ref.sourceStart, ref.sourceEnd);
 460   //                            }
 461   //                            return ref;
 462   //                    } else {
 463   //                            ArrayQualifiedTypeReference ref =
 464   //                                    new ArrayQualifiedTypeReference(tokens, dim, positions);
 465   //                            ref.sourceEnd = endPosition;
 466   //                            if (reportReferenceInfo) {
 467   //                                    requestor.acceptTypeReference(ref.tokens, ref.sourceStart, ref.sourceEnd);
 468   //                            }
 469   //                            return ref;
 470   //                    }
 471   //            }
 472   //    }
 473   //}
 474   //public NameReference getUnspecifiedReference() {
 475   //    /* build a (unspecified) NameReference which may be qualified*/
 476   //
 477   //    int length;
 478   //    if ((length = identifierLengthStack[identifierLengthPtr--]) == 1) {
 479   //            // single variable reference
 480   //            SingleNameReference ref =
 481   //                    new SingleNameReference(
 482   //                            identifierStack[identifierPtr],
 483   //                            identifierPositionStack[identifierPtr--]);
 484   //            if (reportReferenceInfo) {
 485   //                    this.addUnknownRef(ref);
 486   //            }
 487   //            return ref;
 488   //    } else {
 489   //            //Qualified variable reference
 490   //            char[][] tokens = new char[length][];
 491   //            identifierPtr -= length;
 492   //            System.arraycopy(identifierStack, identifierPtr + 1, tokens, 0, length);
 493   //            QualifiedNameReference ref =
 494   //                    new QualifiedNameReference(
 495   //                            tokens,
 496   //                            (int) (identifierPositionStack[identifierPtr + 1] >> 32), // sourceStart
 497   //                            (int) identifierPositionStack[identifierPtr + length]); // sourceEnd
 498   //            if (reportReferenceInfo) {
 499   //                    this.addUnknownRef(ref);
 500   //            }
 501   //            return ref;
 502   //    }
 503   //}
 504   //public NameReference getUnspecifiedReferenceOptimized() {
 505   //    /* build a (unspecified) NameReference which may be qualified
 506   //    The optimization occurs for qualified reference while we are
 507   //    certain in this case the last item of the qualified name is
 508   //    a field access. This optimization is IMPORTANT while it results
 509   //    that when a NameReference is build, the type checker should always
 510   //    look for that it is not a type reference */
 511   //
 512   //    int length;
 513   //    if ((length = identifierLengthStack[identifierLengthPtr--]) == 1) {
 514   //            // single variable reference
 515   //            SingleNameReference ref =
 516   //                    new SingleNameReference(
 517   //                            identifierStack[identifierPtr],
 518   //                            identifierPositionStack[identifierPtr--]);
 519   //            ref.bits &= ~ASTNode.RestrictiveFlagMASK;
 520   //            ref.bits |= LOCAL | FIELD;
 521   //            if (reportReferenceInfo) {
 522   //                    this.addUnknownRef(ref);
 523   //            }
 524   //            return ref;
 525   //    }
 526   //
 527   //    //Qualified-variable-reference
 528   //    //In fact it is variable-reference DOT field-ref , but it would result in a
 529   // type
 530   //    //conflict tha can be only reduce by making a superclass (or inetrface )
 531   // between
 532   //    //nameReference and FiledReference or putting FieldReference under
 533   // NameReference
 534   //    //or else..........This optimisation is not really relevant so just leave
 535   // as it is
 536   //
 537   //    char[][] tokens = new char[length][];
 538   //    identifierPtr -= length;
 539   //    System.arraycopy(identifierStack, identifierPtr + 1, tokens, 0, length);
 540   //    QualifiedNameReference ref =
 541   //            new QualifiedNameReference(
 542   //                    tokens,
 543   //                    (int) (identifierPositionStack[identifierPtr + 1] >> 32),
 544   //    // sourceStart
 545   //     (int) identifierPositionStack[identifierPtr + length]); // sourceEnd
 546   //    ref.bits &= ~ASTNode.RestrictiveFlagMASK;
 547   //    ref.bits |= LOCAL | FIELD;
 548   //    if (reportReferenceInfo) {
 549   //            this.addUnknownRef(ref);
 550   //    }
 551   //    return ref;
 552   //}
 553   ///**
 554   // *
 555   // * INTERNAL USE-ONLY
 556   // */
 557   //private boolean isLocalDeclaration() {
 558   //    int nestedDepth = nestedType;
 559   //    while (nestedDepth >= 0) {
 560   //            if (nestedMethod[nestedDepth] != 0) {
 561   //                    return true;
 562   //            }
 563   //            nestedDepth--;
 564   //    }
 565   //    return false;
 566   //}
 567   /*
 568    * Update the bodyStart of the corresponding parse node
 569    */
 570   public void notifySourceElementRequestor(CompilationUnitDeclaration parsedUnit) {
 571     if (parsedUnit == null) {
 572       // when we parse a single type member declaration the compilation unit is
 573       // null, but we still
 574       // want to be able to notify the requestor on the created ast node
 575       if (astStack[0] instanceof AbstractMethodDeclaration) {
 576         notifySourceElementRequestor((AbstractMethodDeclaration) astStack[0]);
 577         return;
 578       }
 579       return;
 580     }
 581     // range check
 582     boolean isInRange = scanner.initialPosition <= parsedUnit.sourceStart && scanner.eofPosition >= parsedUnit.sourceEnd;
 583
 584     //  if (reportReferenceInfo) {
 585     //          notifyAllUnknownReferences();
 586     //  }
 587     // collect the top level ast nodes
 588     int length = 0;
 589     ASTNode[] nodes = null;
 590     if (sourceType == null) {
 591       if (isInRange) {
 592         requestor.enterCompilationUnit();
 593       }
 594       //                ImportReference currentPackage = parsedUnit.currentPackage;
 595       ImportReference[] imports = parsedUnit.imports;
 596       //                TypeDeclaration[] types = parsedUnit.types;
 597       ArrayList types = parsedUnit.types;
 598       if (types != null) {
 599         //              length =
 600         //                      (currentPackage == null ? 0 : 1)
 601         //                      + (imports == null ? 0 : imports.length)
 602         //                      + (types == null ? 0 : types.length);
 603         //              nodes = new ASTNode[length];
 604         length = (imports == null ? 0 : imports.length) + types.size();
 605         nodes = new ASTNode[length];
 606         int index = 0;
 607         //              if (currentPackage != null) {
 608         //                      nodes[index++] = currentPackage;
 609         //              }
 610         if (imports != null) {
 611           for (int i = 0, max = imports.length; i < max; i++) {
 612             nodes[index++] = imports[i];
 613           }
 614         }
 615
 616         for (int i = 0, max = types.size(); i < max; i++) {
 617           nodes[index++] = (ASTNode) types.get(i);
 618         }
 619       }
 620     } else {
 621       //                TypeDeclaration[] types = parsedUnit.types;
 622       ArrayList types = parsedUnit.types;
 623       if (types != null) {
 624         length = types.size();
 625         nodes = new ASTNode[length];
 626         for (int i = 0, max = types.size(); i < max; i++) {
 627           nodes[i] = (ASTNode) types.get(i);
 628         }
 629       }
 630     }
 631
 632     // notify the nodes in the syntactical order
 633     if (nodes != null && length > 0) {
 634       quickSort(nodes, 0, length - 1);
 635       for (int i = 0; i < length; i++) {
 636         ASTNode node = nodes[i];
 637                                 if (node instanceof ImportReference) {
 638                                         ImportReference importRef = (ImportReference)node;
 639 //                                      if (node == parsedUnit.currentPackage) {
 640 //                                              notifySourceElementRequestor(importRef, true);
 641 //                                      } else {
 642                                                 notifySourceElementRequestor(importRef, false);
 643 //                                      }
 644                         } //else { instanceof TypeDeclaration
 645         if (node instanceof TypeDeclaration) {
 646           notifySourceElementRequestor((TypeDeclaration) node, sourceType == null);
 647           //                            notifySourceElementRequestor((CompilationUnitDeclaration)node,
 648           // sourceType == null);
 649         }
 650         // jsurfer - INSERT start
 651         if (node instanceof AbstractMethodDeclaration) {
 652           notifySourceElementRequestor((AbstractMethodDeclaration) node);
 653         }
 654         //              jsurfer - INSERT end
 655       }
 656     }
 657
 658     if (sourceType == null) {
 659       if (isInRange) {
 660         requestor.exitCompilationUnit(parsedUnit.sourceEnd);
 661       }
 662     }
 663   }
 664
 665   //private void notifyAllUnknownReferences() {
 666   //    for (int i = 0, max = this.unknownRefsCounter; i < max; i++) {
 667   //            NameReference nameRef = this.unknownRefs[i];
 668   //            if ((nameRef.bits & BindingIds.VARIABLE) != 0) {
 669   //                    if ((nameRef.bits & BindingIds.TYPE) == 0) {
 670   //                            // variable but not type
 671   //                            if (nameRef instanceof SingleNameReference) {
 672   //                                    // local var or field
 673   //                                    requestor.acceptUnknownReference(((SingleNameReference) nameRef).token,
 674   // nameRef.sourceStart);
 675   //                            } else {
 676   //                                    // QualifiedNameReference
 677   //                                    // The last token is a field reference and the previous tokens are a
 678   // type/variable references
 679   //                                    char[][] tokens = ((QualifiedNameReference) nameRef).tokens;
 680   //                                    int tokensLength = tokens.length;
 681   //                                    requestor.acceptFieldReference(tokens[tokensLength - 1], nameRef.sourceEnd
 682   // - tokens[tokensLength - 1].length + 1);
 683   //                                    char[][] typeRef = new char[tokensLength - 1][];
 684   //                                    System.arraycopy(tokens, 0, typeRef, 0, tokensLength - 1);
 685   //                                    requestor.acceptUnknownReference(typeRef, nameRef.sourceStart,
 686   // nameRef.sourceEnd - tokens[tokensLength - 1].length);
 687   //                            }
 688   //                    } else {
 689   //                            // variable or type
 690   //                            if (nameRef instanceof SingleNameReference) {
 691   //                                    requestor.acceptUnknownReference(((SingleNameReference) nameRef).token,
 692   // nameRef.sourceStart);
 693   //                            } else {
 694   //                                    //QualifiedNameReference
 695   //                                    requestor.acceptUnknownReference(((QualifiedNameReference) nameRef).tokens,
 696   // nameRef.sourceStart, nameRef.sourceEnd);
 697   //                            }
 698   //                    }
 699   //            } else if ((nameRef.bits & BindingIds.TYPE) != 0) {
 700   //                    if (nameRef instanceof SingleNameReference) {
 701   //                            requestor.acceptTypeReference(((SingleNameReference) nameRef).token,
 702   // nameRef.sourceStart);
 703   //                    } else {
 704   //                            // it is a QualifiedNameReference
 705   //                            requestor.acceptTypeReference(((QualifiedNameReference) nameRef).tokens,
 706   // nameRef.sourceStart, nameRef.sourceEnd);
 707   //                    }
 708   //            }
 709   //    }
 710   //}
 711   /*
 712    * Update the bodyStart of the corresponding parse node
 713    */
 714   public void notifySourceElementRequestor(AbstractMethodDeclaration methodDeclaration) {
 715
 716     // range check
 717     boolean isInRange = scanner.initialPosition <= methodDeclaration.declarationSourceStart
 718         && scanner.eofPosition >= methodDeclaration.declarationSourceEnd;
 719
 720     if (methodDeclaration.isClinit()) {
 721       this.visitIfNeeded(methodDeclaration);
 722       return;
 723     }
 724
 725     if (methodDeclaration.isDefaultConstructor()) {
 726       if (reportReferenceInfo) {
 727         ConstructorDeclaration constructorDeclaration = (ConstructorDeclaration) methodDeclaration;
 728         ExplicitConstructorCall constructorCall = constructorDeclaration.constructorCall;
 729         if (constructorCall != null) {
 730           switch (constructorCall.accessMode) {
 731             case ExplicitConstructorCall.This :
 732               requestor.acceptConstructorReference(typeNames[nestedTypeIndex - 1], constructorCall.arguments == null
 733                   ? 0
 734                   : constructorCall.arguments.length, constructorCall.sourceStart);
 735               break;
 736             case ExplicitConstructorCall.Super :
 737             case ExplicitConstructorCall.ImplicitSuper :
 738               requestor.acceptConstructorReference(superTypeNames[nestedTypeIndex - 1], constructorCall.arguments == null
 739                   ? 0
 740                   : constructorCall.arguments.length, constructorCall.sourceStart);
 741               break;
 742           }
 743         }
 744       }
 745       return;
 746     }
 747     char[][] argumentTypes = null;
 748     char[][] argumentNames = null;
 749     Argument[] arguments = methodDeclaration.arguments;
 750     if (arguments != null) {
 751       int argumentLength = arguments.length;
 752       argumentTypes = new char[argumentLength][];
 753       argumentNames = new char[argumentLength][];
 754       for (int i = 0; i < argumentLength; i++) {
 755         argumentTypes[i] = returnTypeName(arguments[i].type);
 756         argumentNames[i] = arguments[i].name;
 757       }
 758     }
 759     char[][] thrownExceptionTypes = null;
 760     TypeReference[] thrownExceptions = methodDeclaration.thrownExceptions;
 761     if (thrownExceptions != null) {
 762       int thrownExceptionLength = thrownExceptions.length;
 763       thrownExceptionTypes = new char[thrownExceptionLength][];
 764       for (int i = 0; i < thrownExceptionLength; i++) {
 765         thrownExceptionTypes[i] = CharOperation.concatWith(thrownExceptions[i].getTypeName(), '.');
 766       }
 767     }
 768     // by default no selector end position
 769     int selectorSourceEnd = -1;
 770     if (methodDeclaration.isConstructor()) {
 771       //                if (methodDeclaration instanceof SourceConstructorDeclaration) {
 772       //                        selectorSourceEnd =
 773       //                                ((SourceConstructorDeclaration) methodDeclaration).selectorSourceEnd;
 774       //                }
 775       if (isInRange) {
 776         requestor.enterConstructor(methodDeclaration.declarationSourceStart, methodDeclaration.modifiers,
 777             methodDeclaration.selector, methodDeclaration.sourceStart, selectorSourceEnd, argumentTypes, argumentNames,
 778             thrownExceptionTypes);
 779       }
 780       if (reportReferenceInfo) {
 781         ConstructorDeclaration constructorDeclaration = (ConstructorDeclaration) methodDeclaration;
 782         ExplicitConstructorCall constructorCall = constructorDeclaration.constructorCall;
 783         if (constructorCall != null) {
 784           switch (constructorCall.accessMode) {
 785             case ExplicitConstructorCall.This :
 786               requestor.acceptConstructorReference(typeNames[nestedTypeIndex - 1], constructorCall.arguments == null
 787                   ? 0
 788                   : constructorCall.arguments.length, constructorCall.sourceStart);
 789               break;
 790             case ExplicitConstructorCall.Super :
 791             case ExplicitConstructorCall.ImplicitSuper :
 792               requestor.acceptConstructorReference(superTypeNames[nestedTypeIndex - 1], constructorCall.arguments == null
 793                   ? 0
 794                   : constructorCall.arguments.length, constructorCall.sourceStart);
 795               break;
 796           }
 797         }
 798       }
 799       this.visitIfNeeded(methodDeclaration);
 800       if (isInRange) {
 801         requestor.exitConstructor(methodDeclaration.declarationSourceEnd);
 802       }
 803       return;
 804     }
 805     //  if (methodDeclaration instanceof SourceMethodDeclaration) {
 806     //          selectorSourceEnd =
 807     //                  ((SourceMethodDeclaration) methodDeclaration).selectorSourceEnd;
 808     //  }
 809     if (isInRange) {
 810       int modifiers = methodDeclaration.modifiers;
 811       //                boolean deprecated = (modifiers & AccDeprecated) != 0; // remember
 812       // deprecation so as to not lose it below
 813       requestor.enterMethod(methodDeclaration.declarationSourceStart, modifiers, // deprecated
 814                                                                                  // ?
 815                                                                                  // (modifiers
 816                                                                                  // &
 817                                                                                  // AccJustFlag)
 818                                                                                  // |
 819                                                                                  // AccDeprecated
 820                                                                                  // :
 821                                                                                  // modifiers
 822                                                                                  // &
 823                                                                                  // AccJustFlag,
 824           returnTypeName(((MethodDeclaration) methodDeclaration).returnType), methodDeclaration.selector,
 825           methodDeclaration.sourceStart, selectorSourceEnd, argumentTypes, argumentNames, thrownExceptionTypes);
 826     }
 827     this.visitIfNeeded(methodDeclaration);
 828
 829     if (isInRange) {
 830       requestor.exitMethod(methodDeclaration.declarationSourceEnd);
 831     }
 832   }
 833   /*
 834    * Update the bodyStart of the corresponding parse node
 835    */
 836   public void notifySourceElementRequestor(FieldDeclaration fieldDeclaration) {
 837
 838     // range check
 839     boolean isInRange = scanner.initialPosition <= fieldDeclaration.declarationSourceStart
 840         && scanner.eofPosition >= fieldDeclaration.declarationSourceEnd;
 841
 842     if (fieldDeclaration.isField()) {
 843       int fieldEndPosition = fieldDeclaration.declarationSourceEnd;
 844       //                if (fieldDeclaration instanceof SourceFieldDeclaration) {
 845       //                        fieldEndPosition = ((SourceFieldDeclaration)
 846       // fieldDeclaration).fieldEndPosition;
 847       //                        if (fieldEndPosition == 0) {
 848       //                                // use the declaration source end by default
 849       //                                fieldEndPosition = fieldDeclaration.declarationSourceEnd;
 850       //                        }
 851       //                }
 852       if (isInRange) {
 853         int modifiers = fieldDeclaration.modifiers;
 854         boolean deprecated = (modifiers & AccDeprecated) != 0; // remember
 855                                                                // deprecation so
 856                                                                // as to not lose
 857                                                                // it below
 858         requestor.enterField(fieldDeclaration.declarationSourceStart, deprecated
 859             ? (modifiers & AccJustFlag) | AccDeprecated
 860             : modifiers & AccJustFlag, returnTypeName(fieldDeclaration.type), fieldDeclaration.name, fieldDeclaration.sourceStart,
 861             fieldDeclaration.sourceEnd);
 862       }
 863       //                this.visitIfNeeded(fieldDeclaration);
 864       if (isInRange) {
 865         //                      requestor.exitField(
 866         //                              // filter out initializations that are not a constant (simple check)
 867         //                              (fieldDeclaration.initialization == null
 868         //                                              || fieldDeclaration.initialization instanceof ArrayInitializer
 869         //                                              || fieldDeclaration.initialization instanceof AllocationExpression
 870         //                                              || fieldDeclaration.initialization instanceof
 871         // ArrayAllocationExpression
 872         //                                              || fieldDeclaration.initialization instanceof Assignment
 873         //                                              || fieldDeclaration.initialization instanceof ClassLiteralAccess
 874         //                                              || fieldDeclaration.initialization instanceof MessageSend
 875         //                                              || fieldDeclaration.initialization instanceof ArrayReference
 876         //                                              || fieldDeclaration.initialization instanceof ThisReference) ?
 877         //                                      -1 :
 878         //                                      fieldDeclaration.initialization.sourceStart,
 879         //                              fieldEndPosition,
 880         //                              fieldDeclaration.declarationSourceEnd);
 881         requestor.exitField(
 882         // filter out initializations that are not a constant (simple check)
 883             -1, fieldEndPosition, fieldDeclaration.declarationSourceEnd);
 884       }
 885
 886     } else {
 887       //                if (isInRange){
 888       //                        requestor.enterInitializer(
 889       //                                fieldDeclaration.declarationSourceStart,
 890       //                                fieldDeclaration.modifiers);
 891       //                }
 892       //                this.visitIfNeeded((Initializer)fieldDeclaration);
 893       //                if (isInRange){
 894       //                        requestor.exitInitializer(fieldDeclaration.declarationSourceEnd);
 895       //                }
 896     }
 897   }
 898   public void notifySourceElementRequestor(
 899         ImportReference importReference,
 900         boolean isPackage) {
 901 //      if (isPackage) {
 902 //              requestor.acceptPackage(
 903 //                      importReference.declarationSourceStart,
 904 //                      importReference.declarationSourceEnd,
 905 //                      CharOperation.concatWith(importReference.getImportName(), '.'));
 906 //      } else {
 907                 requestor.acceptImport(
 908                         importReference.declarationSourceStart,
 909                         importReference.declarationSourceEnd,
 910                         importReference.getIncludeName(), //CharOperation.concatWith(importReference.getImportName(), '.'),
 911                         importReference.onDemand);
 912 //      }
 913   }
 914   public void notifySourceElementRequestor(TypeDeclaration typeDeclaration, boolean notifyTypePresence) {
 915     //// public void notifySourceElementRequestor(ASTNode typeDeclaration,
 916     // boolean notifyTypePresence) {
 917
 918     // range check
 919     boolean isInRange = scanner.initialPosition <= typeDeclaration.declarationSourceStart
 920         && scanner.eofPosition >= typeDeclaration.declarationSourceEnd;
 921
 922     FieldDeclaration[] fields = typeDeclaration.fields;
 923     AbstractMethodDeclaration[] methods = typeDeclaration.methods;
 924     MemberTypeDeclaration[] memberTypes = typeDeclaration.memberTypes;
 925     int fieldCount = fields == null ? 0 : fields.length;
 926     int methodCount = methods == null ? 0 : methods.length;
 927     int memberTypeCount = memberTypes == null ? 0 : memberTypes.length;
 928     int fieldIndex = 0;
 929     int methodIndex = 0;
 930     int memberTypeIndex = 0;
 931     boolean isInterface = typeDeclaration.isInterface();
 932
 933     if (notifyTypePresence) {
 934       char[][] interfaceNames = null;
 935       int superInterfacesLength = 0;
 936       TypeReference[] superInterfaces = typeDeclaration.superInterfaces;
 937       if (superInterfaces != null) {
 938         superInterfacesLength = superInterfaces.length;
 939         interfaceNames = new char[superInterfacesLength][];
 940       } else {
 941         if (typeDeclaration instanceof AnonymousLocalTypeDeclaration) {
 942           // see PR 3442
 943           QualifiedAllocationExpression alloc = ((AnonymousLocalTypeDeclaration) typeDeclaration).allocation;
 944           if (alloc != null && alloc.type != null) {
 945             superInterfaces = new TypeReference[]{((AnonymousLocalTypeDeclaration) typeDeclaration).allocation.type};
 946             superInterfacesLength = 1;
 947             interfaceNames = new char[1][];
 948           }
 949         }
 950       }
 951       if (superInterfaces != null) {
 952         for (int i = 0; i < superInterfacesLength; i++) {
 953           interfaceNames[i] = CharOperation.concatWith(superInterfaces[i].getTypeName(), '.');
 954         }
 955       }
 956       if (isInterface) {
 957         if (isInRange) {
 958           int modifiers = typeDeclaration.modifiers;
 959           boolean deprecated = false; //(modifiers & AccDeprecated) != 0; //
 960                                       // remember deprecation so as to not lose
 961                                       // it below
 962           requestor.enterInterface(typeDeclaration.declarationSourceStart, modifiers, //deprecated
 963                                                                                       // ?
 964                                                                                       // (modifiers
 965                                                                                       // &
 966                                                                                       // AccJustFlag)
 967                                                                                       // |
 968                                                                                       // AccDeprecated
 969                                                                                       // :
 970                                                                                       // modifiers
 971                                                                                       // &
 972                                                                                       // AccJustFlag,
 973               typeDeclaration.name, typeDeclaration.sourceStart, typeDeclaration.sourceEnd, interfaceNames);
 974         }
 975         if (nestedTypeIndex == typeNames.length) {
 976           // need a resize
 977           System.arraycopy(typeNames, 0, (typeNames = new char[nestedTypeIndex * 2][]), 0, nestedTypeIndex);
 978           System.arraycopy(superTypeNames, 0, (superTypeNames = new char[nestedTypeIndex * 2][]), 0, nestedTypeIndex);
 979         }
 980         typeNames[nestedTypeIndex] = typeDeclaration.name;
 981         superTypeNames[nestedTypeIndex++] = JAVA_LANG_OBJECT;
 982       } else {
 983         TypeReference superclass = typeDeclaration.superclass;
 984         if (superclass == null) {
 985           if (isInRange) {
 986             requestor.enterClass(typeDeclaration.declarationSourceStart, typeDeclaration.modifiers, typeDeclaration.name,
 987                 typeDeclaration.sourceStart, typeDeclaration.sourceEnd, null, interfaceNames);
 988           }
 989         } else {
 990           if (isInRange) {
 991             requestor.enterClass(typeDeclaration.declarationSourceStart, typeDeclaration.modifiers, typeDeclaration.name,
 992                 typeDeclaration.sourceStart, typeDeclaration.sourceEnd, CharOperation.concatWith(superclass.getTypeName(), '.'),
 993                 interfaceNames);
 994           }
 995         }
 996         if (nestedTypeIndex == typeNames.length) {
 997           // need a resize
 998           System.arraycopy(typeNames, 0, (typeNames = new char[nestedTypeIndex * 2][]), 0, nestedTypeIndex);
 999           System.arraycopy(superTypeNames, 0, (superTypeNames = new char[nestedTypeIndex * 2][]), 0, nestedTypeIndex);
1000         }
1001         typeNames[nestedTypeIndex] = typeDeclaration.name;
1002         superTypeNames[nestedTypeIndex++] = superclass == null ? JAVA_LANG_OBJECT : CharOperation.concatWith(superclass
1003             .getTypeName(), '.');
1004       }
1005     }
1006     while ((fieldIndex < fieldCount) || (memberTypeIndex < memberTypeCount) || (methodIndex < methodCount)) {
1007       FieldDeclaration nextFieldDeclaration = null;
1008       AbstractMethodDeclaration nextMethodDeclaration = null;
1009       TypeDeclaration nextMemberDeclaration = null;
1010
1011       int position = Integer.MAX_VALUE;
1012       int nextDeclarationType = -1;
1013       if (fieldIndex < fieldCount) {
1014         nextFieldDeclaration = fields[fieldIndex];
1015         if (nextFieldDeclaration.declarationSourceStart < position) {
1016           position = nextFieldDeclaration.declarationSourceStart;
1017           nextDeclarationType = 0; // FIELD
1018         }
1019       }
1020       if (methodIndex < methodCount) {
1021         nextMethodDeclaration = methods[methodIndex];
1022         if (nextMethodDeclaration.declarationSourceStart < position) {
1023           position = nextMethodDeclaration.declarationSourceStart;
1024           nextDeclarationType = 1; // METHOD
1025         }
1026       }
1027       if (memberTypeIndex < memberTypeCount) {
1028         nextMemberDeclaration = memberTypes[memberTypeIndex];
1029         if (nextMemberDeclaration.declarationSourceStart < position) {
1030           position = nextMemberDeclaration.declarationSourceStart;
1031           nextDeclarationType = 2; // MEMBER
1032         }
1033       }
1034       switch (nextDeclarationType) {
1035         case 0 :
1036           fieldIndex++;
1037           notifySourceElementRequestor(nextFieldDeclaration);
1038           break;
1039         case 1 :
1040           methodIndex++;
1041           notifySourceElementRequestor(nextMethodDeclaration);
1042           break;
1043         case 2 :
1044           memberTypeIndex++;
1045           notifySourceElementRequestor(nextMemberDeclaration, true);
1046       }
1047     }
1048     if (notifyTypePresence) {
1049       if (isInRange) {
1050         if (isInterface) {
1051           requestor.exitInterface(typeDeclaration.declarationSourceEnd);
1052         } else {
1053           requestor.exitClass(typeDeclaration.declarationSourceEnd);
1054         }
1055       }
1056       nestedTypeIndex--;
1057     }
1058   }
1059   public void parseCompilationUnit(ICompilationUnit unit, int start, int end) {
1060     //  boolean needReferenceInfo) {
1061
1062     //  reportReferenceInfo = needReferenceInfo;
1063     //  boolean old = diet;
1064     //  if (needReferenceInfo) {
1065     //          unknownRefs = new NameReference[10];
1066     //          unknownRefsCounter = 0;
1067     //  }
1068
1069     try {
1070       //                diet = true;
1071       CompilationResult compilationUnitResult = new CompilationResult(unit, 0, 0, 10); //this.options.maxProblemsPerUnit);
1072       CompilationUnitDeclaration parsedUnit = parse(unit, compilationUnitResult, start, end);
1073       //                if (scanner.recordLineSeparator) {
1074       //                        requestor.acceptLineSeparatorPositions(scanner.getLineEnds());
1075       //                }
1076       //                if (this.localDeclarationVisitor != null || needReferenceInfo){
1077       //                        diet = false;
1078       //                        this.getMethodBodies(parsedUnit);
1079       //                }
1080       //                this.scanner.resetTo(start, end);
1081       //                notifySourceElementRequestor(parsedUnit);
1082     } catch (AbortCompilation e) {
1083     } finally {
1084       //                diet = old;
1085     }
1086   }
1087   public CompilationUnitDeclaration parseCompilationUnit(ICompilationUnit unit, boolean fullParse) {
1088
1089     //          boolean old = diet;
1090     //          if (fullParse) {
1091     //                  unknownRefs = new NameReference[10];
1092     //                  unknownRefsCounter = 0;
1093     //          }
1094
1095     try {
1096       //                        diet = true;
1097       this.reportReferenceInfo = fullParse;
1098       CompilationResult compilationUnitResult = new CompilationResult(unit, 0, 0, this.options.maxProblemsPerUnit);
1099       CompilationUnitDeclaration parsedUnit = parse(unit, compilationUnitResult, false);
1100       if (scanner.recordLineSeparator) {
1101         requestor.acceptLineSeparatorPositions(scanner.getLineEnds());
1102       }
1103       int initialStart = this.scanner.initialPosition;
1104       int initialEnd = this.scanner.eofPosition;
1105       //                        if (this.localDeclarationVisitor != null || fullParse){
1106       //                                diet = false;
1107       //                                this.getMethodBodies(parsedUnit);
1108       //                        }
1109       this.scanner.resetTo(initialStart, initialEnd);
1110       notifySourceElementRequestor(parsedUnit);
1111       return parsedUnit;
1112     } catch (AbortCompilation e) {
1113       // ignore this exception
1114     } finally {
1115       //                        diet = old;
1116     }
1117     return null;
1118   }
1119
1120   public CompilationUnitDeclaration parseCompletionUnit(ICompilationUnit unit, boolean fullParse) {
1121
1122     //          boolean old = diet;
1123     //          if (fullParse) {
1124     //                  unknownRefs = new NameReference[10];
1125     //                  unknownRefsCounter = 0;
1126     //          }
1127
1128     try {
1129       //                        diet = true;
1130       this.reportReferenceInfo = fullParse;
1131       CompilationResult compilationUnitResult = new CompilationResult(unit, 0, 0, this.options.maxProblemsPerUnit);
1132       CompilationUnitDeclaration parsedUnit = parse(unit, compilationUnitResult, false);
1133 //      if (scanner.recordLineSeparator) {
1134 //        requestor.acceptLineSeparatorPositions(scanner.getLineEnds());
1135 //      }
1136 //      int initialStart = this.scanner.initialPosition;
1137 //      int initialEnd = this.scanner.eofPosition;
1138 //      //                      if (this.localDeclarationVisitor != null || fullParse){
1139 //      //                              diet = false;
1140 //      //                              this.getMethodBodies(parsedUnit);
1141 //      //                      }
1142 //      this.scanner.resetTo(initialStart, initialEnd);
1143 //      notifySourceElementRequestor(parsedUnit);
1144       return parsedUnit;
1145     } catch (AbortCompilation e) {
1146       // ignore this exception
1147     } finally {
1148       //                        diet = old;
1149     }
1150     return null;
1151   }
1152   //public void parseTypeMemberDeclarations(
1153   //    ISourceType sourceType,
1154   //    ICompilationUnit sourceUnit,
1155   //    int start,
1156   //    int end,
1157   //    boolean needReferenceInfo) {
1158   //    boolean old = diet;
1159   //    if (needReferenceInfo) {
1160   //            unknownRefs = new NameReference[10];
1161   //            unknownRefsCounter = 0;
1162   //    }
1163   //
1164   //    try {
1165   //            diet = !needReferenceInfo;
1166   //            reportReferenceInfo = needReferenceInfo;
1167   //            CompilationResult compilationUnitResult =
1168   //                    new CompilationResult(sourceUnit, 0, 0, this.options.maxProblemsPerUnit);
1169   //            CompilationUnitDeclaration unit =
1170   //                    SourceTypeConverter.buildCompilationUnit(
1171   //                            new ISourceType[]{sourceType},
1172   //                            false, // no need for field and methods
1173   //                            false, // no need for member types
1174   //                            false, // no need for field initialization
1175   //                            problemReporter(),
1176   //                            compilationUnitResult);
1177   //            if ((unit == null) || (unit.types == null) || (unit.types.length != 1))
1178   //                    return;
1179   //            this.sourceType = sourceType;
1180   //            try {
1181   //                    /* automaton initialization */
1182   //                    initialize();
1183   //                    goForClassBodyDeclarations();
1184   //                    /* scanner initialization */
1185   //                    scanner.setSource(sourceUnit.getContents());
1186   //                    scanner.resetTo(start, end);
1187   //                    /* unit creation */
1188   //                    referenceContext = compilationUnit = unit;
1189   //                    /* initialize the astStacl */
1190   //                    // the compilationUnitDeclaration should contain exactly one type
1191   //                    pushOnAstStack(unit.types[0]);
1192   //                    /* run automaton */
1193   //                    parse();
1194   //                    notifySourceElementRequestor(unit);
1195   //            } finally {
1196   //                    unit = compilationUnit;
1197   //                    compilationUnit = null; // reset parser
1198   //            }
1199   //    } catch (AbortCompilation e) {
1200   //    } finally {
1201   //            if (scanner.recordLineSeparator) {
1202   //                    requestor.acceptLineSeparatorPositions(scanner.getLineEnds());
1203   //            }
1204   //            diet = old;
1205   //    }
1206   //}
1207   //
1208   //public void parseTypeMemberDeclarations(
1209   //    char[] contents,
1210   //    int start,
1211   //    int end) {
1212   //
1213   //    boolean old = diet;
1214   //
1215   //    try {
1216   //            diet = true;
1217   //
1218   //            /* automaton initialization */
1219   //            initialize();
1220   //            goForClassBodyDeclarations();
1221   //            /* scanner initialization */
1222   //            scanner.setSource(contents);
1223   //            scanner.recordLineSeparator = false;
1224   //            scanner.taskTags = null;
1225   //            scanner.taskPriorities = null;
1226   //            scanner.resetTo(start, end);
1227   //
1228   //            /* unit creation */
1229   //            referenceContext = null;
1230   //
1231   //            /* initialize the astStacl */
1232   //            // the compilationUnitDeclaration should contain exactly one type
1233   //            /* run automaton */
1234   //            parse();
1235   //            notifySourceElementRequestor((CompilationUnitDeclaration)null);
1236   //    } catch (AbortCompilation e) {
1237   //    } finally {
1238   //            diet = old;
1239   //    }
1240   //}
1241   /**
1242    * Sort the given ast nodes by their positions.
1243    */
1244   private static void quickSort(ASTNode[] sortedCollection, int left, int right) {
1245     int original_left = left;
1246     int original_right = right;
1247     ASTNode mid = sortedCollection[(left + right) / 2];
1248     do {
1249       while (sortedCollection[left].sourceStart < mid.sourceStart) {
1250         left++;
1251       }
1252       while (mid.sourceStart < sortedCollection[right].sourceStart) {
1253         right--;
1254       }
1255       if (left <= right) {
1256         ASTNode tmp = sortedCollection[left];
1257         sortedCollection[left] = sortedCollection[right];
1258         sortedCollection[right] = tmp;
1259         left++;
1260         right--;
1261       }
1262     } while (left <= right);
1263     if (original_left < right) {
1264       quickSort(sortedCollection, original_left, right);
1265     }
1266     if (left < original_right) {
1267       quickSort(sortedCollection, left, original_right);
1268     }
1269   }
1270   /*
1271    * Answer a char array representation of the type name formatted like: - type
1272    * name + dimensions Example: "A[][]".toCharArray()
1273    * "java.lang.String".toCharArray()
1274    */
1275   private char[] returnTypeName(TypeReference type) {
1276     if (type == null)
1277       return null;
1278     int dimension = type.dimensions();
1279     if (dimension != 0) {
1280       char[] dimensionsArray = new char[dimension * 2];
1281       for (int i = 0; i < dimension; i++) {
1282         dimensionsArray[i * 2] = '[';
1283         dimensionsArray[(i * 2) + 1] = ']';
1284       }
1285       return CharOperation.concat(CharOperation.concatWith(type.getTypeName(), '.'), dimensionsArray);
1286     }
1287     return CharOperation.concatWith(type.getTypeName(), '.');
1288   }
1289
1290   public void addUnknownRef(NameReference nameRef) {
1291     if (this.unknownRefs.length == this.unknownRefsCounter) {
1292       // resize
1293       System.arraycopy(this.unknownRefs, 0, (this.unknownRefs = new NameReference[this.unknownRefsCounter * 2]), 0,
1294           this.unknownRefsCounter);
1295     }
1296     this.unknownRefs[this.unknownRefsCounter++] = nameRef;
1297   }
1298
1299   private void visitIfNeeded(AbstractMethodDeclaration method) {
1300     if (this.localDeclarationVisitor != null && (method.bits & ASTNode.HasLocalTypeMASK) != 0) {
1301       if (method.statements != null) {
1302         int statementsLength = method.statements.length;
1303         for (int i = 0; i < statementsLength; i++)
1304           method.statements[i].traverse(this.localDeclarationVisitor, method.scope);
1305       }
1306     }
1307   }
1308
1309   //private void visitIfNeeded(FieldDeclaration field) {
1310   //    if (this.localDeclarationVisitor != null
1311   //            && (field.bits & ASTNode.HasLocalTypeMASK) != 0) {
1312   //                    if (field.initialization != null) {
1313   //                            field.initialization.traverse(this.localDeclarationVisitor, null);
1314   //                    }
1315   //    }
1316   //}
1317   //
1318   //private void visitIfNeeded(Initializer initializer) {
1319   //    if (this.localDeclarationVisitor != null
1320   //            && (initializer.bits & ASTNode.HasLocalTypeMASK) != 0) {
1321   //                    if (initializer.block != null) {
1322   //                            initializer.block.traverse(this.localDeclarationVisitor, null);
1323   //                    }
1324   //    }
1325   //}
1326   //
1327   //protected void reportSyntaxError(int act, int currentKind, int
1328   // stateStackTop) {
1329   //    if (compilationUnit == null) return;
1330   //    super.reportSyntaxError(act, currentKind,stateStackTop);
1331   //}
1332   protected CompilationUnitDeclaration endParse(int act) {
1333     //  if (sourceType != null) {
1334     //          if (sourceType.isInterface()) {
1335     //                  consumeInterfaceDeclaration();
1336     //          } else {
1337     //                  consumeClassDeclaration();
1338     //          }
1339     //  }
1340     if (compilationUnit != null) {
1341       CompilationUnitDeclaration result = super.endParse(act);
1342       return result;
1343     } else {
1344       return null;
1345     }
1346   }
1347 }