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   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.core.builder;
  12 import java.util.ArrayList;
  13
  14 import net.sourceforge.phpdt.core.compiler.IProblem;
  15 import net.sourceforge.phpdt.internal.compiler.CompilationResult;
  16 import net.sourceforge.phpdt.internal.core.Util;
  17 import net.sourceforge.phpdt.internal.core.util.SimpleLookupTable;
  18 import net.sourceforge.phpdt.internal.ui.util.PHPFileUtil;
  19 import net.sourceforge.phpeclipse.PHPeclipsePlugin;
  20 import net.sourceforge.phpeclipse.builder.IdentifierIndexManager;
  21
  22 import org.eclipse.core.resources.IFile;
  23 import org.eclipse.core.resources.IFolder;
  24 import org.eclipse.core.resources.IMarker;
  25 import org.eclipse.core.resources.IResource;
  26 import org.eclipse.core.resources.IResourceDelta;
  27 import org.eclipse.core.runtime.CoreException;
  28 import org.eclipse.core.runtime.IPath;
  29 /**
  30  * The incremental image builder
  31  */
  32 public class IncrementalImageBuilder extends AbstractImageBuilder {
  33   protected ArrayList sourceFiles;
  34   protected ArrayList previousSourceFiles;
  35   protected ArrayList qualifiedStrings;
  36   protected ArrayList simpleStrings;
  37   protected SimpleLookupTable secondaryTypesToRemove;
  38   protected boolean hasStructuralChanges;
  39   protected int compileLoop;
  40   public static int MaxCompileLoop = 5; // perform a full build if it takes
  41   // more than ? incremental compile
  42   // loops
  43   protected IncrementalImageBuilder(PHPBuilder javaBuilder) {
  44     super(javaBuilder);
  45     this.nameEnvironment.isIncrementalBuild = true;
  46     this.newState.copyFrom(javaBuilder.lastState);
  47     this.sourceFiles = new ArrayList(33);
  48     this.previousSourceFiles = null;
  49     this.qualifiedStrings = new ArrayList(33);
  50     this.simpleStrings = new ArrayList(33);
  51     this.hasStructuralChanges = false;
  52     this.compileLoop = 0;
  53   }
  54   public boolean build(SimpleLookupTable deltas) {
  55     // initialize builder
  56     // walk this project's deltas, find changed source files
  57     // walk prereq projects' deltas, find changed class files & add affected
  58     // source files
  59     //   use the build state # to skip the deltas for certain prereq projects
  60     //   ignore changed zip/jar files since they caused a full build
  61     // compile the source files & acceptResult()
  62     // compare the produced class files against the existing ones on disk
  63     // recompile all dependent source files of any type with structural changes
  64     // or new/removed secondary type
  65     // keep a loop counter to abort & perform a full build
  66     if (PHPBuilder.DEBUG)
  67       System.out.println("INCREMENTAL build"); //$NON-NLS-1$
  68     try {
  69       resetCollections();
  70       notifier.subTask(Util.bind("build.analyzingDeltas")); //$NON-NLS-1$
  71       IResourceDelta sourceDelta = (IResourceDelta) deltas
  72           .get(javaBuilder.currentProject);
  73       if (sourceDelta != null) {
  74         sourceDelta.accept(new ParserVisitor(javaBuilder.currentProject, notifier.monitor));
  75
  76         if (!findSourceFiles(sourceDelta))
  77           return false;
  78       }
  79       notifier.updateProgressDelta(0.10f);
  80 //      Object[] keyTable = deltas.keyTable;
  81 //      Object[] valueTable = deltas.valueTable;
  82 ////      final IdentifierIndexManager indexManager = PHPeclipsePlugin.getDefault()
  83 ////          .getIndexManager(javaBuilder.currentProject);
  84 //      for (int i = 0, l = valueTable.length; i < l; i++) {
  85 //        IResourceDelta delta = (IResourceDelta) valueTable[i];
  86 //        if (delta != null) {
  87 //          IResource resource = delta.getResource();
  88 //          int resourceType = resource.getType();
  89 //          if (resourceType == IResource.FILE) {
  90 //            switch (delta.getKind()) {
  91 //              case IResourceDelta.ADDED :
  92 //                if ((resource.getFileExtension() != null)
  93 //                    && PHPFileUtil.isPHPFile((IFile) resource)) {
  94 //                  // update indexfile for the project:
  95 ////                  indexManager.addFile((IFile) resource);
  96 //                }
  97 //                break;
  98 //              case IResourceDelta.CHANGED :
  99 //                if ((resource.getFileExtension() != null)
 100 //                    && PHPFileUtil.isPHPFile((IFile) resource)) {
 101 //                  // update indexfile for the project:
 102 ////                  indexManager.changeFile((IFile) resource);
 103 //                }
 104 //                break;
 105 //              case IResourceDelta.REMOVED :
 106 //                if ((resource.getFileExtension() != null)
 107 //                    && PHPFileUtil.isPHPFile((IFile) resource)) {
 108 //                  // update indexfile for the project:
 109 ////                  indexManager.removeFile((IFile) resource);
 110 //                }
 111 //                break;
 112 //            }
 113 //          }
 114 //          //                          ClasspathLocation[] classFoldersAndJars = (ClasspathLocation[])
 115 //          // javaBuilder.binaryLocationsPerProject.get(keyTable[i]);
 116 //          //                          if (classFoldersAndJars != null)
 117 //          //                                  if (!findAffectedSourceFiles(delta, classFoldersAndJars)) return
 118 //          // false;
 119 //        }
 120 //      }
 121       notifier.updateProgressDelta(0.10f);
 122       notifier.subTask(Util.bind("build.analyzingSources")); //$NON-NLS-1$
 123       addAffectedSourceFiles();
 124       notifier.updateProgressDelta(0.05f);
 125       this.compileLoop = 0;
 126       float increment = 0.40f;
 127       while (sourceFiles.size() > 0) { // added to in acceptResult
 128         if (++this.compileLoop > MaxCompileLoop) {
 129           if (PHPBuilder.DEBUG)
 130             System.out
 131                 .println("ABORTING incremental build... exceeded loop count"); //$NON-NLS-1$
 132           return false;
 133         }
 134         notifier.checkCancel();
 135         SourceFile[] allSourceFiles = new SourceFile[sourceFiles.size()];
 136         sourceFiles.toArray(allSourceFiles);
 137         resetCollections();
 138         workQueue.addAll(allSourceFiles);
 139         notifier.setProgressPerCompilationUnit(increment
 140             / allSourceFiles.length);
 141         increment = increment / 2;
 142         compile(allSourceFiles);
 143 //        removeSecondaryTypes();
 144         addAffectedSourceFiles();
 145       }
 146       if (this.hasStructuralChanges && javaBuilder.javaProject.hasCycleMarker())
 147         javaBuilder.mustPropagateStructuralChanges();
 148     } catch (AbortIncrementalBuildException e) {
 149       // abort the incremental build and let the batch builder handle the
 150       // problem
 151       if (PHPBuilder.DEBUG)
 152         System.out.println("ABORTING incremental build... cannot find "
 153             + e.qualifiedTypeName + //$NON-NLS-1$
 154             ". Could have been renamed inside its existing source file."); //$NON-NLS-1$
 155       return false;
 156     } catch (CoreException e) {
 157       throw internalException(e);
 158     } finally {
 159       cleanUp();
 160     }
 161     return true;
 162   }
 163   protected void addAffectedSourceFiles() {
 164     if (qualifiedStrings.isEmpty() && simpleStrings.isEmpty())
 165       return;
 166     // the qualifiedStrings are of the form 'p1/p2' & the simpleStrings are
 167     // just 'X'
 168 //    char[][][] qualifiedNames = ReferenceCollection
 169 //        .internQualifiedNames(qualifiedStrings);
 170     // if a well known qualified name was found then we can skip over these
 171 //    if (qualifiedNames.length < qualifiedStrings.size())
 172 //      qualifiedNames = null;
 173 //    char[][] simpleNames = ReferenceCollection.internSimpleNames(simpleStrings);
 174     // if a well known name was found then we can skip over these
 175 //    if (simpleNames.length < simpleStrings.size())
 176 //      simpleNames = null;
 177 //    Object[] keyTable = newState.references.keyTable;
 178 //    Object[] valueTable = newState.references.valueTable;
 179 //    next : for (int i = 0, l = valueTable.length; i < l; i++) {
 180 //      ReferenceCollection refs = (ReferenceCollection) valueTable[i];
 181 //      if (refs != null && refs.includes(qualifiedNames, simpleNames)) {
 182 //        String typeLocator = (String) keyTable[i];
 183 //        IFile file = javaBuilder.currentProject.getFile(typeLocator);
 184 //        if (file.exists()) {
 185 //          ClasspathMultiDirectory md = sourceLocations[0];
 186 //          if (sourceLocations.length > 1) {
 187 //            IPath sourceFileFullPath = file.getFullPath();
 188 //            for (int j = 0, m = sourceLocations.length; j < m; j++) {
 189 //              if (sourceLocations[j].sourceFolder.getFullPath().isPrefixOf(
 190 //                  sourceFileFullPath)) {
 191 //                md = sourceLocations[j];
 192 //                if (md.exclusionPatterns == null
 193 //                    || !Util.isExcluded(file, md.exclusionPatterns))
 194 //                  break;
 195 //              }
 196 //            }
 197 //          }
 198 //          SourceFile sourceFile = new SourceFile(file, md, encoding);
 199 //          if (sourceFiles.contains(sourceFile))
 200 //            continue next;
 201 //          if (compiledAllAtOnce && previousSourceFiles != null
 202 //              && previousSourceFiles.contains(sourceFile))
 203 //            continue next; // can skip previously compiled files since already
 204 //          // saw hierarchy related problems
 205 //          if (PHPBuilder.DEBUG)
 206 //            System.out.println("  adding affected source file " + typeLocator); //$NON-NLS-1$
 207 //          //                          // update indexfile for the project:
 208 //          sourceFiles.add(sourceFile);
 209 //        }
 210 //      }
 211 //    }
 212   }
 213   protected void addDependentsOf(IPath path, boolean hasStructuralChanges) {
 214     if (hasStructuralChanges) {
 215       newState.tagAsStructurallyChanged();
 216       this.hasStructuralChanges = true;
 217     }
 218     // the qualifiedStrings are of the form 'p1/p2' & the simpleStrings are
 219     // just 'X'
 220     path = path.setDevice(null);
 221     String packageName = path.removeLastSegments(1).toString();
 222     if (!qualifiedStrings.contains(packageName))
 223       qualifiedStrings.add(packageName);
 224     String typeName = path.lastSegment();
 225     int memberIndex = typeName.indexOf('$');
 226     if (memberIndex > 0)
 227       typeName = typeName.substring(0, memberIndex);
 228     if (!simpleStrings.contains(typeName)) {
 229       if (PHPBuilder.DEBUG)
 230         System.out.println("  will look for dependents of " //$NON-NLS-1$
 231             + typeName + " in " + packageName); //$NON-NLS-1$
 232       simpleStrings.add(typeName);
 233     }
 234   }
 235   protected void cleanUp() {
 236     super.cleanUp();
 237     this.sourceFiles = null;
 238     this.previousSourceFiles = null;
 239     this.qualifiedStrings = null;
 240     this.simpleStrings = null;
 241     this.secondaryTypesToRemove = null;
 242     this.hasStructuralChanges = false;
 243     this.compileLoop = 0;
 244   }
 245   //protected boolean findAffectedSourceFiles(IResourceDelta delta,
 246   // ClasspathLocation[] classFoldersAndJars) {
 247   //    for (int i = 0, l = classFoldersAndJars.length; i < l; i++) {
 248   //            ClasspathLocation bLocation = classFoldersAndJars[i];
 249   //            // either a .class file folder or a zip/jar file
 250   //            if (bLocation != null) { // skip unchanged output folder
 251   //                    IPath p = bLocation.getProjectRelativePath();
 252   //                    if (p != null) {
 253   //                            IResourceDelta binaryDelta = delta.findMember(p);
 254   //                            if (binaryDelta != null) {
 255   //                                    if (bLocation instanceof ClasspathJar) {
 256   //                                            if (JavaBuilder.DEBUG)
 257   //                                                    System.out.println("ABORTING incremental build... found delta to jar/zip
 258   // file"); //$NON-NLS-1$
 259   //                                            return false; // do full build since jar file was changed (added/removed
 260   // were caught as classpath change)
 261   //                                    }
 262   //                                    if (binaryDelta.getKind() == IResourceDelta.ADDED || binaryDelta.getKind()
 263   // == IResourceDelta.REMOVED) {
 264   //                                            if (JavaBuilder.DEBUG)
 265   //                                                    System.out.println("ABORTING incremental build... found added/removed
 266   // binary folder"); //$NON-NLS-1$
 267   //                                            return false; // added/removed binary folder should not make it here
 268   // (classpath change), but handle anyways
 269   //                                    }
 270   //                                    int segmentCount = binaryDelta.getFullPath().segmentCount();
 271   //                                    IResourceDelta[] children = binaryDelta.getAffectedChildren(); // .class
 272   // files from class folder
 273   //                                    for (int j = 0, m = children.length; j < m; j++)
 274   //                                            findAffectedSourceFiles(children[j], segmentCount);
 275   //                                    notifier.checkCancel();
 276   //                            }
 277   //                    }
 278   //            }
 279   //    }
 280   //    return true;
 281   //}
 282   protected void findAffectedSourceFiles(IResourceDelta binaryDelta,
 283       int segmentCount) {
 284     // When a package becomes a type or vice versa, expect 2 deltas,
 285     // one on the folder & one on the class file
 286     IResource resource = binaryDelta.getResource();
 287     switch (resource.getType()) {
 288       case IResource.FOLDER :
 289         switch (binaryDelta.getKind()) {
 290           case IResourceDelta.ADDED :
 291           case IResourceDelta.REMOVED :
 292             IPath packagePath = resource.getFullPath().removeFirstSegments(
 293                 segmentCount);
 294             String packageName = packagePath.toString();
 295             if (binaryDelta.getKind() == IResourceDelta.ADDED) {
 296               // see if any known source file is from the same package...
 297               // classpath already includes new package
 298 //              if (!newState.isKnownPackage(packageName)) {
 299 //                if (PHPBuilder.DEBUG)
 300 //                  System.out.println("Found added package " + packageName); //$NON-NLS-1$
 301 //                addDependentsOf(packagePath, false);
 302 //                return;
 303 //              }
 304               if (PHPBuilder.DEBUG)
 305                 System.out.println("Skipped dependents of added package "
 306                     + packageName); //$NON-NLS-1$
 307             } else {
 308               // see if the package still exists on the classpath
 309               //                                                if (!nameEnvironment.isPackage(packageName)) {
 310               //                                                        if (JavaBuilder.DEBUG)
 311               //                                                                System.out.println("Found removed package " + packageName);
 312               // //$NON-NLS-1$
 313               //                                                        addDependentsOf(packagePath, false);
 314               //                                                        return;
 315               //                                                }
 316               if (PHPBuilder.DEBUG)
 317                 System.out.println("Skipped dependents of removed package "
 318                     + packageName); //$NON-NLS-1$
 319             }
 320           // fall thru & traverse the sub-packages and .class files
 321           case IResourceDelta.CHANGED :
 322             IResourceDelta[] children = binaryDelta.getAffectedChildren();
 323             for (int i = 0, l = children.length; i < l; i++)
 324               findAffectedSourceFiles(children[i], segmentCount);
 325         }
 326         return;
 327       case IResource.FILE :
 328     //                  if (Util.isClassFileName(resource.getName())) {
 329     //                          IPath typePath =
 330     // resource.getFullPath().removeFirstSegments(segmentCount).removeFileExtension();
 331     //                          switch (binaryDelta.getKind()) {
 332     //                                  case IResourceDelta.ADDED :
 333     //                                  case IResourceDelta.REMOVED :
 334     //                                          if (JavaBuilder.DEBUG)
 335     //                                                  System.out.println("Found added/removed class file " + typePath);
 336     // //$NON-NLS-1$
 337     //                                          addDependentsOf(typePath, false);
 338     //                                          return;
 339     //                                  case IResourceDelta.CHANGED :
 340     //                                          if ((binaryDelta.getFlags() & IResourceDelta.CONTENT) == 0)
 341     //                                                  return; // skip it since it really isn't changed
 342     //                                          if (JavaBuilder.DEBUG)
 343     //                                                  System.out.println("Found changed class file " + typePath);
 344     // //$NON-NLS-1$
 345     //                                          addDependentsOf(typePath, false);
 346     //                          }
 347     //                          return;
 348     //                  }
 349     }
 350   }
 351   protected boolean findSourceFiles(IResourceDelta delta) throws CoreException {
 352     for (int i = 0, l = sourceLocations.length; i < l; i++) {
 353       ClasspathMultiDirectory md = sourceLocations[i];
 354       if (md.sourceFolder.equals(javaBuilder.currentProject)) {
 355         // skip nested source & output folders when the project is a source
 356         // folder
 357         int segmentCount = delta.getFullPath().segmentCount();
 358         IResourceDelta[] children = delta.getAffectedChildren();
 359         for (int j = 0, m = children.length; j < m; j++)
 360           if (!isExcludedFromProject(children[j].getFullPath()))
 361             findSourceFiles(children[j], md, segmentCount);
 362       } else {
 363         IResourceDelta sourceDelta = delta.findMember(md.sourceFolder
 364             .getProjectRelativePath());
 365         if (sourceDelta != null) {
 366           if (sourceDelta.getKind() == IResourceDelta.REMOVED) {
 367             if (PHPBuilder.DEBUG)
 368               System.out
 369                   .println("ABORTING incremental build... found removed source folder"); //$NON-NLS-1$
 370             return false; // removed source folder should not make it here, but
 371             // handle anyways (ADDED is supported)
 372           }
 373           int segmentCount = sourceDelta.getFullPath().segmentCount();
 374           IResourceDelta[] children = sourceDelta.getAffectedChildren();
 375           for (int j = 0, m = children.length; j < m; j++)
 376             findSourceFiles(children[j], md, segmentCount);
 377         }
 378       }
 379       notifier.checkCancel();
 380     }
 381     return true;
 382   }
 383   protected void findSourceFiles(IResourceDelta sourceDelta,
 384       ClasspathMultiDirectory md, int segmentCount) throws CoreException {
 385     // When a package becomes a type or vice versa, expect 2 deltas,
 386     // one on the folder & one on the source file
 387     IResource resource = sourceDelta.getResource();
 388     if (md.exclusionPatterns != null
 389         && Util.isExcluded(resource, md.exclusionPatterns))
 390       return;
 391     switch (resource.getType()) {
 392       case IResource.FOLDER :
 393         switch (sourceDelta.getKind()) {
 394           case IResourceDelta.ADDED :
 395             IPath addedPackagePath = resource.getFullPath()
 396                 .removeFirstSegments(segmentCount);
 397             createFolder(addedPackagePath, md.binaryFolder); // ensure package
 398             // exists in the
 399             // output folder
 400             // add dependents even when the package thinks it exists to be on
 401             // the safe side
 402             if (PHPBuilder.DEBUG)
 403               System.out.println("Found added package " + addedPackagePath); //$NON-NLS-1$
 404             addDependentsOf(addedPackagePath, true);
 405           // fall thru & collect all the source files
 406           case IResourceDelta.CHANGED :
 407             IResourceDelta[] children = sourceDelta.getAffectedChildren();
 408             for (int i = 0, l = children.length; i < l; i++)
 409               findSourceFiles(children[i], md, segmentCount);
 410             return;
 411           case IResourceDelta.REMOVED :
 412             IPath removedPackagePath = resource.getFullPath()
 413                 .removeFirstSegments(segmentCount);
 414             if (sourceLocations.length > 1) {
 415               for (int i = 0, l = sourceLocations.length; i < l; i++) {
 416                 if (sourceLocations[i].sourceFolder.getFolder(
 417                     removedPackagePath).exists()) {
 418                   // only a package fragment was removed, same as removing
 419                   // multiple source files
 420                   createFolder(removedPackagePath, md.binaryFolder); // ensure
 421                   // package
 422                   // exists
 423                   // in the
 424                   // output
 425                   // folder
 426                   IResourceDelta[] removedChildren = sourceDelta
 427                       .getAffectedChildren();
 428                   for (int j = 0, m = removedChildren.length; j < m; j++)
 429                     findSourceFiles(removedChildren[j], md, segmentCount);
 430                   return;
 431                 }
 432               }
 433             }
 434             IFolder removedPackageFolder = md.binaryFolder
 435                 .getFolder(removedPackagePath);
 436             if (removedPackageFolder.exists())
 437               removedPackageFolder.delete(IResource.FORCE, null);
 438             // add dependents even when the package thinks it does not exist to
 439             // be on the safe side
 440             if (PHPBuilder.DEBUG)
 441               System.out.println("Found removed package " + removedPackagePath); //$NON-NLS-1$
 442             addDependentsOf(removedPackagePath, true);
 443             newState.removePackage(sourceDelta);
 444         }
 445         return;
 446       case IResource.FILE :
 447         String resourceName = resource.getName();
 448         if (Util.isJavaFileName(resourceName)) {
 449           IPath typePath = resource.getFullPath().removeFirstSegments(
 450               segmentCount).removeFileExtension();
 451           String typeLocator = resource.getProjectRelativePath().toString();
 452           switch (sourceDelta.getKind()) {
 453             case IResourceDelta.ADDED :
 454               if (PHPBuilder.DEBUG)
 455                 System.out.println("Compile this added source file "
 456                     + typeLocator); //$NON-NLS-1$
 457               sourceFiles.add(new SourceFile((IFile) resource, md, encoding));
 458               String typeName = typePath.toString();
 459 //              if (!newState.isDuplicateLocator(typeName, typeLocator)) { // adding
 460 //                // dependents
 461 //                // results
 462 //                // in
 463 //                // 2
 464 //                // duplicate
 465 //                // errors
 466 //                if (PHPBuilder.DEBUG)
 467 //                  System.out.println("Found added source file " + typeName); //$NON-NLS-1$
 468 //                addDependentsOf(typePath, true);
 469 //              }
 470               return;
 471             case IResourceDelta.REMOVED :
 472 //              char[][] definedTypeNames = newState
 473 //                  .getDefinedTypeNamesFor(typeLocator);
 474 //              if (definedTypeNames == null) { // defined a single type matching
 475 //                // typePath
 476 //                removeClassFile(typePath, md.binaryFolder);
 477 //                if ((sourceDelta.getFlags() & IResourceDelta.MOVED_TO) != 0) {
 478 //                  // remove problems and tasks for a compilation unit that is
 479 //                  // being moved (to another package or renamed)
 480 //                  // if the target file is a compilation unit, the new cu will
 481 //                  // be recompiled
 482 //                  // if the target file is a non-java resource, then markers
 483 //                  // are removed
 484 //                  // see bug 2857
 485 //                  IResource movedFile = javaBuilder.workspaceRoot
 486 //                      .getFile(sourceDelta.getMovedToPath());
 487 //                  PHPBuilder.removeProblemsAndTasksFor(movedFile);
 488 //                }
 489 //              } else {
 490                 if (PHPBuilder.DEBUG)
 491                   System.out.println("Found removed source file "
 492                       + typePath.toString()); //$NON-NLS-1$
 493                 addDependentsOf(typePath, true); // add dependents of the
 494                 // source file since it may be
 495                 // involved in a name
 496                 // collision
 497 //                if (definedTypeNames.length > 0) { // skip it if it failed to
 498 //                  // successfully define a
 499 //                  // type
 500 //                  IPath packagePath = typePath.removeLastSegments(1);
 501 //                  for (int i = 0, l = definedTypeNames.length; i < l; i++)
 502 //                    removeClassFile(packagePath.append(new String(
 503 //                        definedTypeNames[i])), md.binaryFolder);
 504 //                }
 505 //              }
 506 //              newState.removeLocator(typeLocator);
 507               return;
 508             case IResourceDelta.CHANGED :
 509               if ((sourceDelta.getFlags() & IResourceDelta.CONTENT) == 0)
 510                 return; // skip it since it really isn't changed
 511               if (PHPBuilder.DEBUG)
 512                 System.out.println("Compile this changed source file "
 513                     + typeLocator); //$NON-NLS-1$
 514               sourceFiles.add(new SourceFile((IFile) resource, md, encoding));
 515           }
 516           return;
 517           //                    } else if (Util.isClassFileName(resourceName)) {
 518           //                            return; // skip class files
 519         } else if (md.hasIndependentOutputFolder) {
 520           if (javaBuilder.filterExtraResource(resource))
 521             return;
 522           // copy all other resource deltas to the output folder
 523           IPath resourcePath = resource.getFullPath().removeFirstSegments(
 524               segmentCount);
 525           IResource outputFile = md.binaryFolder.getFile(resourcePath);
 526           switch (sourceDelta.getKind()) {
 527             case IResourceDelta.ADDED :
 528               if (outputFile.exists()) {
 529                 if (PHPBuilder.DEBUG)
 530                   System.out.println("Deleting existing file " + resourcePath); //$NON-NLS-1$
 531                 outputFile.delete(IResource.FORCE, null);
 532               }
 533               if (PHPBuilder.DEBUG)
 534                 System.out.println("Copying added file " + resourcePath); //$NON-NLS-1$
 535               createFolder(resourcePath.removeLastSegments(1), md.binaryFolder); // ensure
 536               // package
 537               // exists
 538               // in
 539               // the
 540               // output
 541               // folder
 542               resource.copy(outputFile.getFullPath(), IResource.FORCE, null);
 543               outputFile.setDerived(true);
 544               return;
 545             case IResourceDelta.REMOVED :
 546               if (outputFile.exists()) {
 547                 if (PHPBuilder.DEBUG)
 548                   System.out.println("Deleting removed file " + resourcePath); //$NON-NLS-1$
 549                 outputFile.delete(IResource.FORCE, null);
 550               }
 551               return;
 552             case IResourceDelta.CHANGED :
 553               if ((sourceDelta.getFlags() & IResourceDelta.CONTENT) == 0)
 554                 return; // skip it since it really isn't changed
 555               if (outputFile.exists()) {
 556                 if (PHPBuilder.DEBUG)
 557                   System.out.println("Deleting existing file " + resourcePath); //$NON-NLS-1$
 558                 outputFile.delete(IResource.FORCE, null);
 559               }
 560               if (PHPBuilder.DEBUG)
 561                 System.out.println("Copying changed file " + resourcePath); //$NON-NLS-1$
 562               createFolder(resourcePath.removeLastSegments(1), md.binaryFolder); // ensure
 563               // package
 564               // exists
 565               // in
 566               // the
 567               // output
 568               // folder
 569               resource.copy(outputFile.getFullPath(), IResource.FORCE, null);
 570               outputFile.setDerived(true);
 571           }
 572           return;
 573         }
 574     }
 575   }
 576   protected void finishedWith(String sourceLocator, CompilationResult result,
 577       char[] mainTypeName, ArrayList definedTypeNames,
 578       ArrayList duplicateTypeNames) throws CoreException {
 579 //    char[][] previousTypeNames = newState.getDefinedTypeNamesFor(sourceLocator);
 580 //    if (previousTypeNames == null)
 581 //      previousTypeNames = new char[][]{mainTypeName};
 582 //    IPath packagePath = null;
 583 //    next : for (int i = 0, l = previousTypeNames.length; i < l; i++) {
 584 //      char[] previous = previousTypeNames[i];
 585 //      for (int j = 0, m = definedTypeNames.size(); j < m; j++)
 586 //        if (CharOperation.equals(previous, (char[]) definedTypeNames.get(j)))
 587 //          continue next;
 588 //      SourceFile sourceFile = (SourceFile) result.getCompilationUnit();
 589 //      if (packagePath == null) {
 590 //        int count = sourceFile.sourceLocation.sourceFolder.getFullPath()
 591 //            .segmentCount();
 592 //        packagePath = sourceFile.resource.getFullPath().removeFirstSegments(
 593 //            count).removeLastSegments(1);
 594 //      }
 595 //      if (secondaryTypesToRemove == null)
 596 //        this.secondaryTypesToRemove = new SimpleLookupTable();
 597 //      ArrayList types = (ArrayList) secondaryTypesToRemove
 598 //          .get(sourceFile.sourceLocation.binaryFolder);
 599 //      if (types == null)
 600 //        types = new ArrayList(definedTypeNames.size());
 601 //      types.add(packagePath.append(new String(previous)));
 602 //      secondaryTypesToRemove.put(sourceFile.sourceLocation.binaryFolder, types);
 603 //    }
 604     //  super.finishedWith(sourceLocator, result, mainTypeName,
 605     // definedTypeNames, duplicateTypeNames);
 606   }
 607 //  protected void removeClassFile(IPath typePath, IContainer outputFolder)
 608 //      throws CoreException {
 609 //    if (typePath.lastSegment().indexOf('$') == -1) { // is not a nested type
 610 //      newState.removeQualifiedTypeName(typePath.toString());
 611 //      // add dependents even when the type thinks it does not exist to be on
 612 //      // the safe side
 613 //      if (PHPBuilder.DEBUG)
 614 //        System.out.println("Found removed type " + typePath); //$NON-NLS-1$
 615 //      addDependentsOf(typePath, true); // when member types are removed, their
 616 //      // enclosing type is structurally
 617 //      // changed
 618 //    }
 619 //    IFile classFile = outputFolder.getFile(typePath
 620 //        .addFileExtension(PHPBuilder.CLASS_EXTENSION));
 621 //    if (classFile.exists()) {
 622 //      if (PHPBuilder.DEBUG)
 623 //        System.out.println("Deleting class file of removed type " + typePath); //$NON-NLS-1$
 624 //      classFile.delete(IResource.FORCE, null);
 625 //    }
 626 //  }
 627 //  protected void removeSecondaryTypes() throws CoreException {
 628 //    if (secondaryTypesToRemove != null) { // delayed deleting secondary types
 629 //      // until the end of the compile loop
 630 //      Object[] keyTable = secondaryTypesToRemove.keyTable;
 631 //      Object[] valueTable = secondaryTypesToRemove.valueTable;
 632 //      for (int i = 0, l = keyTable.length; i < l; i++) {
 633 //        IContainer outputFolder = (IContainer) keyTable[i];
 634 //        if (outputFolder != null) {
 635 //          ArrayList paths = (ArrayList) valueTable[i];
 636 //          for (int j = 0, m = paths.size(); j < m; j++)
 637 //            removeClassFile((IPath) paths.get(j), outputFolder);
 638 //        }
 639 //      }
 640 //      this.secondaryTypesToRemove = null;
 641 //      if (previousSourceFiles != null && previousSourceFiles.size() > 1)
 642 //        this.previousSourceFiles = null; // cannot optimize recompile case when
 643 //      // a secondary type is deleted
 644 //    }
 645 //  }
 646   protected void resetCollections() {
 647     previousSourceFiles = sourceFiles.isEmpty()
 648         ? null
 649         : (ArrayList) sourceFiles.clone();
 650     sourceFiles.clear();
 651     qualifiedStrings.clear();
 652     simpleStrings.clear();
 653     workQueue.clear();
 654   }
 655   protected void updateProblemsFor(SourceFile sourceFile,
 656       CompilationResult result) throws CoreException {
 657     IMarker[] markers = PHPBuilder.getProblemsFor(sourceFile.resource);
 658     IProblem[] problems = result.getProblems();
 659     if (problems == null && markers.length == 0)
 660       return;
 661     notifier.updateProblemCounts(markers, problems);
 662     PHPBuilder.removeProblemsFor(sourceFile.resource);
 663     storeProblemsFor(sourceFile, problems);
 664   }
 665   protected void updateTasksFor(SourceFile sourceFile, CompilationResult result)
 666       throws CoreException {
 667     IMarker[] markers = PHPBuilder.getTasksFor(sourceFile.resource);
 668     IProblem[] tasks = result.getTasks();
 669     if (tasks == null && markers.length == 0)
 670       return;
 671     PHPBuilder.removeTasksFor(sourceFile.resource);
 672     storeTasksFor(sourceFile, tasks);
 673   }
 674   //protected void writeClassFileBytes(byte[] bytes, IFile file, String
 675   // qualifiedFileName, boolean isSecondaryType) throws CoreException {
 676   //    // Before writing out the class file, compare it to the previous file
 677   //    // If structural changes occured then add dependent source files
 678   //    if (file.exists()) {
 679   //            if (writeClassFileCheck(file, qualifiedFileName, bytes)) {
 680   //                    if (JavaBuilder.DEBUG)
 681   //                            System.out.println("Writing changed class file " +
 682   // file.getName());//$NON-NLS-1$
 683   //                    file.setContents(new ByteArrayInputStream(bytes), true, false, null);
 684   //                    if (!file.isDerived())
 685   //                            file.setDerived(true);
 686   //            } else if (JavaBuilder.DEBUG) {
 687   //                    System.out.println("Skipped over unchanged class file " +
 688   // file.getName());//$NON-NLS-1$
 689   //            }
 690   //    } else {
 691   //            if (isSecondaryType)
 692   //                    addDependentsOf(new Path(qualifiedFileName), true); // new secondary type
 693   //            if (JavaBuilder.DEBUG)
 694   //                    System.out.println("Writing new class file " +
 695   // file.getName());//$NON-NLS-1$
 696   //            file.create(new ByteArrayInputStream(bytes), IResource.FORCE, null);
 697   //            file.setDerived(true);
 698   //    }
 699   //}
 700   //protected boolean writeClassFileCheck(IFile file, String fileName, byte[]
 701   // newBytes) throws CoreException {
 702   //    try {
 703   //            byte[] oldBytes = Util.getResourceContentsAsByteArray(file);
 704   //            if (this.compileLoop > 1) { // only optimize files which were recompiled
 705   // during the dependent pass, see 33990
 706   //                    notEqual : if (newBytes.length == oldBytes.length) {
 707   //                            for (int i = newBytes.length; --i >= 0;)
 708   //                                    if (newBytes[i] != oldBytes[i]) break notEqual;
 709   //                            return false; // bytes are identical so skip them
 710   //                    }
 711   //            }
 712   //            IPath location = file.getLocation();
 713   //            if (location == null) return false; // unable to determine location of
 714   // this class file
 715   //            ClassFileReader reader = new ClassFileReader(oldBytes,
 716   // location.toString().toCharArray());
 717   //            // ignore local types since they're only visible inside a single method
 718   //            if (!(reader.isLocal() || reader.isAnonymous()) &&
 719   // reader.hasStructuralChanges(newBytes)) {
 720   //                    if (JavaBuilder.DEBUG)
 721   //                            System.out.println("Type has structural changes " + fileName);
 722   // //$NON-NLS-1$
 723   //                    addDependentsOf(new Path(fileName), true);
 724   //            }
 725   //    } catch (ClassFormatException e) {
 726   //            addDependentsOf(new Path(fileName), true);
 727   //    }
 728   //    return true;
 729   //}
 730   public String toString() {
 731     return "incremental image builder for:\n\tnew state: " + newState; //$NON-NLS-1$
 732   }
 733   /*
 734    * Debug helper
 735    *
 736    * static void dump(IResourceDelta delta) { StringBuffer buffer = new
 737    * StringBuffer(); IPath path = delta.getFullPath(); for (int i =
 738    * path.segmentCount(); --i > 0;) buffer.append(" "); switch
 739    * (delta.getKind()) { case IResourceDelta.ADDED: buffer.append('+'); break;
 740    * case IResourceDelta.REMOVED: buffer.append('-'); break; case
 741    * IResourceDelta.CHANGED: '); break; case IResourceDelta.NO_CHANGE:
 742    * buffer.append('='); break; default: buffer.append('?'); break; }
 743    * buffer.append(path); System.out.println(buffer.toString());
 744    * IResourceDelta[] children = delta.getAffectedChildren(); for (int i = 0, l =
 745    * children.length; i < l; i++) dump(children[i]); }
 746    */
 747 }