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   1 /*******************************************************************************
   2  * Copyright (c) 2006 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     Andy Clement    - initial implementation 26Jul06
  10  *******************************************************************************/
  11 package org.aspectj.ajdt.internal.compiler;
  12
  13 import java.io.IOException;
  14 import java.util.ArrayList;
  15 import java.util.HashMap;
  16 import java.util.Hashtable;
  17 import java.util.Iterator;
  18 import java.util.List;
  19 import java.util.Map;
  20
  21 import org.aspectj.ajdt.internal.compiler.ast.AddAtAspectJAnnotationsVisitor;
  22 import org.aspectj.ajdt.internal.compiler.ast.AspectDeclaration;
  23 import org.aspectj.ajdt.internal.compiler.ast.InterTypeConstructorDeclaration;
  24 import org.aspectj.ajdt.internal.compiler.ast.InterTypeFieldDeclaration;
  25 import org.aspectj.ajdt.internal.compiler.ast.InterTypeMethodDeclaration;
  26 import org.aspectj.ajdt.internal.compiler.ast.ValidateAtAspectJAnnotationsVisitor;
  27 import org.aspectj.ajdt.internal.compiler.lookup.EclipseFactory;
  28 import org.aspectj.ajdt.internal.core.builder.AjState;
  29 import org.aspectj.asm.internal.CharOperation;
  30 import org.aspectj.bridge.IMessage;
  31 import org.aspectj.bridge.IMessageHandler;
  32 import org.aspectj.bridge.IProgressListener;
  33 import org.aspectj.bridge.context.CompilationAndWeavingContext;
  34 import org.aspectj.bridge.context.ContextToken;
  35 import org.aspectj.org.eclipse.jdt.internal.compiler.CompilationResult;
  36 import org.aspectj.org.eclipse.jdt.internal.compiler.Compiler;
  37 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration;
  38 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.Annotation;
  39 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
  40 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
  41 import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
  42 import org.aspectj.org.eclipse.jdt.internal.compiler.env.ICompilationUnit;
  43 import org.aspectj.org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
  44 import org.aspectj.weaver.bcel.BcelWeaver;
  45 import org.aspectj.weaver.bcel.BcelWorld;
  46 import org.aspectj.weaver.bcel.UnwovenClassFile;
  47
  48 /**
  49  * Adapts standard JDT Compiler to add in AspectJ specific behaviours. This version implements pipelining - where files are compiled
  50  * and then woven immediately, unlike AjCompilerAdapter which compiles everything then weaves everything. (One small note: because
  51  * all aspects have to be known before weaving can take place, the weaving pipeline is 'stalled' until all aspects have been
  52  * compiled).
  53  *
  54  * The basic strategy is this:
  55  *
  56  * 1. diet parse all input source files - this is enough for us to implement ITD matching - this enables us to determine which are
  57  * aspects 2. sort the input files, aspects first - keep a note of how many files contain aspects 3. if there are aspects, mark the
  58  * pipeline as 'stalled' 3. repeat 3a. compile a file 3b. have we now compiled all aspects? NO - put file in a weave pending queue
  59  * YES- unstall the 'pipeline' 3c. is the pipeline stalled? NO - weave all pending files and this one YES- do nothing
  60  *
  61  * Complexities arise because of: - what does -XterminateAfterCompilation mean? since there is no stage where everything is compiled
  62  * and nothing is woven
  63  *
  64  *
  65  * Here is the compiler loop difference when pipelining.
  66  *
  67  * the old way: Finished diet parsing [C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java] Finished diet parsing
  68  * [C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java] > AjLookupEnvironment.completeTypeBindings() <
  69  * AjLookupEnvironment.completeTypeBindings() compiling C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java
  70  * >Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java)
  71  * <Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java) compiling
  72  * C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java
  73  * >Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java)
  74  * <Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java) >AjCompilerAdapter.weave()
  75  * >BcelWeaver.prepareForWeave <BcelWeaver.prepareForWeave woven class ClassOne (from
  76  * C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java) woven class ClassTwo (from
  77  * C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java) <AjCompilerAdapter.weave()
  78  *
  79  * the new way (see the compiling/weaving mixed up): Finished diet parsing
  80  * [C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java] Finished diet parsing
  81  * [C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java] >AjLookupEnvironment.completeTypeBindings()
  82  * <AjLookupEnvironment.completeTypeBindings() compiling C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java
  83  * >Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java)
  84  * <Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java) >AjCompilerAdapter.weave()
  85  * >BcelWeaver.prepareForWeave <BcelWeaver.prepareForWeave woven class ClassOne (from
  86  * C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassOne.java) <AjCompilerAdapter.weave() compiling
  87  * C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java
  88  * >Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java)
  89  * <Compiler.process(C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java) >AjCompilerAdapter.weave() woven class ClassTwo
  90  * (from C:\temp\ajcSandbox\aspectjhead\ajcTest23160.tmp\ClassTwo.java) <AjCompilerAdapter.weave()
  91  *
  92  *
  93  */
  94 public class AjPipeliningCompilerAdapter extends AbstractCompilerAdapter {
  95
  96         private Compiler compiler;
  97         private BcelWeaver weaver;
  98         private EclipseFactory eWorld;
  99         private boolean isBatchCompile;
 100         private boolean reportedErrors;
 101         private boolean isXTerminateAfterCompilation;
 102         private boolean proceedOnError;
 103         private boolean inJava5Mode;
 104         private boolean makeReflectable;
 105         private boolean noAtAspectJAnnotationProcessing;
 106         private IIntermediateResultsRequestor intermediateResultsRequestor;
 107         private IProgressListener progressListener;
 108         private IOutputClassFileNameProvider outputFileNameProvider;
 109         private IBinarySourceProvider binarySourceProvider;
 110         private WeaverMessageHandler weaverMessageHandler;
 111         private Map<String, List<UnwovenClassFile>> binarySourceSetForFullWeave = new HashMap<>();
 112
 113         private ContextToken processingToken = null;
 114         private ContextToken resolvingToken = null;
 115         private ContextToken analysingToken = null;
 116         private ContextToken generatingToken = null;
 117
 118         private AjState incrementalCompilationState;
 119
 120         // Maintains a list of whats weaving - whilst the pipeline is stalled, this accumulates aspects.
 121         List<InterimCompilationResult> resultsPendingWeave = new ArrayList<>();
 122
 123         // pipelining info
 124         private boolean pipelineStalled = true;
 125         private boolean weaverInitialized = false;
 126         private int toWaitFor;
 127         // If we determine we are going to drop back to a full build - don't need to tell the weaver to report adviceDidNotMatch
 128         private boolean droppingBackToFullBuild;
 129
 130         /**
 131          * Create an adapter, and tell it everything it needs to now to drive the AspectJ parts of a compile cycle.
 132          *
 133          * @param compiler the JDT compiler that produces class files from source
 134          * @param isBatchCompile true if this is a full build (non-incremental)
 135          * @param world the bcelWorld used for type resolution during weaving
 136          * @param weaver the weaver
 137          * @param intRequestor recipient of interim compilation results from compiler (pre-weave)
 138          * @param outputFileNameProvider implementor of a strategy providing output file names for results
 139          * @param binarySourceEntries binary source that we didn't compile, but that we need to weave
 140          * @param resultSetForFullWeave if we are doing an incremental build, and the weaver determines that we need to weave the world,
 141          *        this is the set of intermediate results that will be passed to the weaver.
 142          */
 143         public AjPipeliningCompilerAdapter(Compiler compiler, boolean isBatchCompile, BcelWorld world, BcelWeaver weaver,
 144                         EclipseFactory eFactory, IIntermediateResultsRequestor intRequestor, IProgressListener progressListener,
 145                         IOutputClassFileNameProvider outputFileNameProvider, IBinarySourceProvider binarySourceProvider,
 146                         Map fullBinarySourceEntries, /* fileName |-> List<UnwovenClassFile> */
 147                         boolean isXterminateAfterCompilation, boolean proceedOnError, boolean noAtAspectJProcessing, boolean makeReflectable,
 148                         AjState incrementalCompilationState) {
 149                 this.compiler = compiler;
 150                 this.isBatchCompile = isBatchCompile;
 151                 this.weaver = weaver;
 152                 this.intermediateResultsRequestor = intRequestor;
 153                 this.progressListener = progressListener;
 154                 this.outputFileNameProvider = outputFileNameProvider;
 155                 this.binarySourceProvider = binarySourceProvider;
 156                 this.isXTerminateAfterCompilation = isXterminateAfterCompilation;
 157                 this.proceedOnError = proceedOnError;
 158                 this.binarySourceSetForFullWeave = fullBinarySourceEntries;
 159                 this.eWorld = eFactory;
 160                 this.inJava5Mode = false;
 161                 this.makeReflectable = makeReflectable;
 162                 this.noAtAspectJAnnotationProcessing = noAtAspectJProcessing;
 163                 this.incrementalCompilationState = incrementalCompilationState;
 164
 165                 if (compiler.options.complianceLevel >= ClassFileConstants.JDK1_5) {
 166                         inJava5Mode = true;
 167                 }
 168                 IMessageHandler msgHandler = world.getMessageHandler();
 169                 // Do we need to reset the message handler or create a new one? (This saves a ton of memory lost on incremental compiles...)
 170                 if (msgHandler instanceof WeaverMessageHandler) {
 171                         ((WeaverMessageHandler) msgHandler).resetCompiler(compiler);
 172                         weaverMessageHandler = (WeaverMessageHandler) msgHandler;
 173                 } else {
 174                         weaverMessageHandler = new WeaverMessageHandler(msgHandler, compiler);
 175                         world.setMessageHandler(weaverMessageHandler);
 176                 }
 177         }
 178
 179         // the compilation lifecycle methods below are called in order as compilation progresses...
 180
 181         /**
 182          * In a pipelining compilation system, we need to ensure aspects are through the pipeline first. Only when they are all through
 183          * (and therefore we know about all static/dynamic crosscutting) can be proceed to weave anything. Effectively the weaving part
 184          * of the pipeline stalls until all the aspects have been fully compiled. This method sorts the compilation units such that any
 185          * containing aspects are fully compiled first and it keeps a note on how long it should stall the pipeline before commencing
 186          * weaving.
 187          */
 188         public void afterDietParsing(CompilationUnitDeclaration[] units) {
 189                 if (debugPipeline) {
 190                         System.err.println("> afterDietParsing: there are " + (units == null ? 0 : units.length) + " units to sort");
 191                 }
 192
 193                 if (!reportedErrors && units != null) {
 194                         for (CompilationUnitDeclaration unit : units) {
 195                                 if (unit != null && unit.compilationResult != null && unit.compilationResult.hasErrors()) {
 196                                         reportedErrors = true;
 197                                         break; // TODO break or exit here?
 198                                 }
 199                         }
 200                 }
 201
 202                 // Break the units into two lists...
 203                 List<CompilationUnitDeclaration> aspects = new ArrayList<>();
 204                 List<CompilationUnitDeclaration> nonaspects = new ArrayList<>();
 205                 for (CompilationUnitDeclaration unit : units) {
 206                         if (containsAnAspect(unit)) {
 207                                 aspects.add(unit);
 208                         } else {
 209                                 nonaspects.add(unit);
 210                         }
 211                 }
 212
 213                 // ...and put them back together, aspects first
 214                 int posn = 0;
 215                 for (CompilationUnitDeclaration aspect : aspects) {
 216                         units[posn++] = aspect;
 217                 }
 218                 for (CompilationUnitDeclaration nonaspect : nonaspects) {
 219                         units[posn++] = nonaspect;
 220                 }
 221
 222                 // Work out how long to stall the pipeline
 223                 toWaitFor = aspects.size();
 224                 if (debugPipeline) {
 225                         System.err.println("< afterDietParsing: stalling pipeline for " + toWaitFor + " source files");
 226                 }
 227
 228                 // TESTING
 229                 if (pipelineTesting) {
 230                         if (pipelineOutput == null) {
 231                                 pipelineOutput = new Hashtable();
 232                         }
 233                         pipelineOutput.put("filesContainingAspects", new Integer(toWaitFor).toString());
 234                         StringBuffer order = new StringBuffer();
 235                         order.append("[");
 236                         for (int i = 0; i < units.length; i++) {
 237                                 if (i != 0) {
 238                                         order.append(",");
 239                                 }
 240                                 CompilationUnitDeclaration declaration = units[i];
 241                                 String filename = new String(declaration.getFileName());
 242                                 int idx = filename.lastIndexOf('/');
 243                                 if (idx > 0) {
 244                                         filename = filename.substring(idx + 1);
 245                                 }
 246                                 idx = filename.lastIndexOf('\\');
 247                                 if (idx > 0) {
 248                                         filename = filename.substring(idx + 1);
 249                                 }
 250                                 order.append(filename);
 251                         }
 252                         order.append("]");
 253                         pipelineOutput.put("weaveOrder", order.toString());
 254                 }
 255         }
 256
 257         public void beforeCompiling(ICompilationUnit[] sourceUnits) {
 258                 resultsPendingWeave = new ArrayList<>();
 259                 reportedErrors = false;
 260                 droppingBackToFullBuild = false;
 261         }
 262
 263         public void beforeProcessing(CompilationUnitDeclaration unit) {
 264                 if (debugPipeline) {
 265                         System.err.println("compiling " + new String(unit.getFileName()));
 266                 }
 267                 eWorld.showMessage(IMessage.INFO, "compiling " + new String(unit.getFileName()), null, null);
 268                 processingToken = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.PROCESSING_COMPILATION_UNIT, unit
 269                                 .getFileName());
 270                 if (inJava5Mode && !noAtAspectJAnnotationProcessing) {
 271                         ContextToken tok = CompilationAndWeavingContext.enteringPhase(
 272                                         CompilationAndWeavingContext.ADDING_AT_ASPECTJ_ANNOTATIONS, unit.getFileName());
 273                         AddAtAspectJAnnotationsVisitor atAspectJVisitor = new AddAtAspectJAnnotationsVisitor(unit, makeReflectable);
 274                         unit.traverse(atAspectJVisitor, unit.scope);
 275                         CompilationAndWeavingContext.leavingPhase(tok);
 276                 }
 277         }
 278
 279         public void beforeResolving(CompilationUnitDeclaration unit) {
 280                 resolvingToken = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.RESOLVING_COMPILATION_UNIT, unit
 281                                 .getFileName());
 282         }
 283
 284         public void afterResolving(CompilationUnitDeclaration unit) {
 285                 if (resolvingToken != null) {
 286                         CompilationAndWeavingContext.leavingPhase(resolvingToken);
 287                 }
 288         }
 289
 290         public void beforeAnalysing(CompilationUnitDeclaration unit) {
 291                 analysingToken = CompilationAndWeavingContext.enteringPhase(CompilationAndWeavingContext.ANALYSING_COMPILATION_UNIT, unit
 292                                 .getFileName());
 293                 if (inJava5Mode && !noAtAspectJAnnotationProcessing) {
 294                         ValidateAtAspectJAnnotationsVisitor atAspectJVisitor = new ValidateAtAspectJAnnotationsVisitor(unit);
 295                         unit.traverse(atAspectJVisitor, unit.scope);
 296                 }
 297         }
 298
 299         public void afterAnalysing(CompilationUnitDeclaration unit) {
 300                 if (analysingToken != null) {
 301                         CompilationAndWeavingContext.leavingPhase(analysingToken);
 302                 }
 303         }
 304
 305         public void beforeGenerating(CompilationUnitDeclaration unit) {
 306                 generatingToken = CompilationAndWeavingContext.enteringPhase(
 307                                 CompilationAndWeavingContext.GENERATING_UNWOVEN_CODE_FOR_COMPILATION_UNIT, unit.getFileName());
 308                 if (eWorld.pushinCollector != null) {
 309                         if (unit.types != null && unit.types.length > 0) {
 310                                 for (int t = 0; t < unit.types.length; t++) {
 311                                         TypeDeclaration type = unit.types[t];
 312                                         if (type.methods != null) {
 313                                                 for (int m = 0; m < type.methods.length; m++) {
 314                                                         AbstractMethodDeclaration md = type.methods[m];
 315                                                         if (md instanceof InterTypeMethodDeclaration) {
 316                                                                 InterTypeMethodDeclaration itmd = ((InterTypeMethodDeclaration) md);
 317                                                                 ITDMethodPrinter printer = new ITDMethodPrinter(itmd, md.scope);
 318                                                                 String s = printer.print();
 319                                                                 eWorld.pushinCollector.recordInterTypeMethodDeclarationCode(md, s, getDeclarationLineNumber(md));
 320                                                         } else if (md instanceof InterTypeFieldDeclaration) {
 321                                                                 ITDFieldPrinter printer = new ITDFieldPrinter(((InterTypeFieldDeclaration) md), md.scope);
 322                                                                 String s = printer.print();
 323                                                                 eWorld.pushinCollector.recordInterTypeFieldDeclarationCode(md, s, getDeclarationLineNumber(md));
 324                                                         } else if (md instanceof InterTypeConstructorDeclaration) {
 325                                                                 ITDConstructorPrinter printer = new ITDConstructorPrinter(((InterTypeConstructorDeclaration) md),
 326                                                                                 md.scope);
 327                                                                 String s = printer.print();
 328                                                                 eWorld.pushinCollector.recordInterTypeConstructorDeclarationCode(md, s,
 329                                                                                 getDeclarationLineNumber(md));
 330                                                                 // } else if (md instanceof DeclareAnnotationDeclaration) {
 331                                                                 // DeclareAnnotationDeclaration dad = (DeclareAnnotationDeclaration) md;
 332                                                                 // String value = new DeclareAnnotationsPrinter(dad, dad.scope).print();
 333                                                                 // eWorld.pushinCollector.recordDeclareAnnotationDeclarationCode(md, value);
 334                                                         }
 335                                                 }
 336                                         }
 337                                 }
 338                         }
 339                         eWorld.pushinCollector.setOutputFileNameProvider(outputFileNameProvider);
 340                 }
 341         }
 342
 343         /**
 344          * @return the line number for this declaration in the source code
 345          */
 346         private int getDeclarationLineNumber(AbstractMethodDeclaration md) {
 347                 int sourceStart = md.sourceStart;
 348                 int[] separators = md.compilationResult.lineSeparatorPositions;
 349                 int declarationStartLine = 1;
 350                 for (int separator : separators) {
 351                         if (sourceStart < separator) {
 352                                 break;
 353                         }
 354                         declarationStartLine++;
 355                 }
 356                 return declarationStartLine;
 357         }
 358
 359         public void afterGenerating(CompilationUnitDeclaration unit) {
 360                 if (generatingToken != null) {
 361                         CompilationAndWeavingContext.leavingPhase(generatingToken);
 362                 }
 363                 if (eWorld.pushinCollector != null) {
 364                         eWorld.pushinCollector.dump(unit);
 365                 }
 366         }
 367
 368         public void afterCompiling(CompilationUnitDeclaration[] units) {
 369                 this.eWorld.cleanup();
 370                 if (!weaverInitialized) { // nothing got compiled, doesnt mean there is nothing to do... (binary weaving)
 371                         if (!(isXTerminateAfterCompilation || (reportedErrors && !proceedOnError))) {
 372                                 // acceptResult(unit.compilationResult);
 373                                 // } else {
 374                                 try {
 375                                         if (weaveQueuedEntries()) {
 376                                                 droppingBackToFullBuild = true;
 377                                         }
 378                                 } catch (IOException ex) {
 379                                         AbortCompilation ac = new AbortCompilation(null, ex);
 380                                         throw ac;
 381                                 }
 382                         }
 383                 }
 384                 postWeave();
 385                 try {
 386                         // not great ... but one more check before we continue, see pr132314
 387                         if (!reportedErrors && units != null) {
 388                                 for (CompilationUnitDeclaration unit : units) {
 389                                         if (unit != null && unit.compilationResult != null && unit.compilationResult.hasErrors()) {
 390                                                 reportedErrors = true;
 391                                                 break;
 392                                         }
 393                                 }
 394                         }
 395                         if (isXTerminateAfterCompilation || (reportedErrors && !proceedOnError)) {
 396                                 // no point weaving... just tell the requestor we're done
 397                                 notifyRequestor();
 398                         } else {
 399                                 // weave(); // notification happens as weave progresses...
 400                                 // weaver.getWorld().flush(); // pr152257
 401                         }
 402                         // } catch (IOException ex) {
 403                         // AbortCompilation ac = new AbortCompilation(null,ex);
 404                         // throw ac;
 405                 } catch (RuntimeException rEx) {
 406                         if (rEx instanceof AbortCompilation) {
 407                                 throw rEx; // Don't wrap AbortCompilation exceptions!
 408                         }
 409
 410                         // This will be unwrapped in Compiler.handleInternalException() and the nested
 411                         // RuntimeException thrown back to the original caller - which is AspectJ
 412                         // which will then then log it as a compiler problem.
 413                         throw new AbortCompilation(true, rEx);
 414                 }
 415         }
 416
 417         public void afterProcessing(CompilationUnitDeclaration unit, int unitIndex) {
 418                 CompilationAndWeavingContext.leavingPhase(processingToken);
 419                 eWorld.finishedCompilationUnit(unit);
 420                 InterimCompilationResult intRes = new InterimCompilationResult(unit.compilationResult, outputFileNameProvider);
 421                 if (unit.compilationResult.hasErrors()) {
 422                         reportedErrors = true;
 423                 }
 424
 425                 if (intermediateResultsRequestor != null) {
 426                         intermediateResultsRequestor.acceptResult(intRes);
 427                 }
 428
 429                 if (unit.compilationResult.hasErrors() || (isXTerminateAfterCompilation || (reportedErrors && !proceedOnError))) {
 430                         acceptResult(unit.compilationResult);
 431                 } else {
 432                         queueForWeaving(intRes);
 433                 }
 434         }
 435
 436         private void queueForWeaving(InterimCompilationResult intRes) {
 437                 resultsPendingWeave.add(intRes);
 438                 if (pipelineStalled) {
 439                         if (resultsPendingWeave.size() >= toWaitFor) {
 440                                 pipelineStalled = false;
 441                         }
 442                 }
 443                 if (pipelineStalled) {
 444                         return;
 445                 }
 446                 try {
 447                         if (weaveQueuedEntries()) {
 448                                 droppingBackToFullBuild = true;
 449                         }
 450                 } catch (IOException ex) {
 451                         AbortCompilation ac = new AbortCompilation(null, ex);
 452                         throw ac;
 453                 }
 454         }
 455
 456         /*
 457          * Called from the weaverAdapter once it has finished weaving the class files associated with a given compilation result.
 458          */
 459         public void acceptResult(CompilationResult result) {
 460                 compiler.requestor.acceptResult(result.tagAsAccepted());
 461                 if (compiler.unitsToProcess != null) {
 462                         for (int i = 0; i < compiler.unitsToProcess.length; i++) {
 463                                 if (compiler.unitsToProcess[i] != null) {
 464                                         if (compiler.unitsToProcess[i].compilationResult == result) {
 465                                                 compiler.unitsToProcess[i].cleanUp();
 466                                                 compiler.unitsToProcess[i] = null;
 467                                         }
 468                                 }
 469                         }
 470                 }
 471         }
 472
 473         // helper methods...
 474         // ==================================================================================
 475
 476         private List<InterimCompilationResult> getBinarySourcesFrom(Map<String, List<UnwovenClassFile>> binarySourceEntries) {
 477                 // Map is fileName |-> List<UnwovenClassFile>
 478                 List<InterimCompilationResult> ret = new ArrayList<>();
 479                 for (String sourceFileName : binarySourceEntries.keySet()) {
 480                         List<UnwovenClassFile> unwovenClassFiles = binarySourceEntries.get(sourceFileName);
 481                         // XXX - see bugs 57432,58679 - final parameter on next call should be "compiler.options.maxProblemsPerUnit"
 482                         CompilationResult result = new CompilationResult(sourceFileName.toCharArray(), 0, 0, Integer.MAX_VALUE);
 483                         result.noSourceAvailable();
 484                         InterimCompilationResult binarySource = new InterimCompilationResult(result, unwovenClassFiles);
 485                         ret.add(binarySource);
 486                 }
 487                 return ret;
 488         }
 489
 490         private void notifyRequestor() {
 491                 for (InterimCompilationResult iresult : resultsPendingWeave) {
 492                         compiler.requestor.acceptResult(iresult.result().tagAsAccepted());
 493                 }
 494         }
 495
 496         /** Return true if we've decided to drop back to a full build (too much has changed) */
 497         private boolean weaveQueuedEntries() throws IOException {
 498                 if (debugPipeline) {
 499                         System.err.println(">.weaveQueuedEntries()");
 500                 }
 501                 for (InterimCompilationResult iresult : resultsPendingWeave) {
 502                         for (int i = 0; i < iresult.unwovenClassFiles().length; i++) {
 503                                 weaver.addClassFile(iresult.unwovenClassFiles()[i], false);
 504                         }
 505                 }
 506                 ensureWeaverInitialized(); // by doing this only once, are we saying needToReweaveWorld can't change once the aspects have
 507                 // been stuffed into the weaver?
 508                 if (weaver.needToReweaveWorld() && !isBatchCompile) {
 509                         return true;
 510                 }
 511                 weaver.weave(new WeaverAdapter(this, weaverMessageHandler, progressListener));
 512                 resultsPendingWeave.clear(); // dont need to do those again
 513                 this.eWorld.minicleanup();
 514                 if (debugPipeline) {
 515                         System.err.println("<.weaveQueuedEntries()");
 516                 }
 517                 return false;
 518         }
 519
 520         private void ensureWeaverInitialized() {
 521                 if (weaverInitialized) {
 522                         return;
 523                 }
 524                 weaverInitialized = true;
 525                 weaver.setIsBatchWeave(isBatchCompile);
 526                 weaver.prepareForWeave();
 527                 if (weaver.needToReweaveWorld()) {
 528                         if (!isBatchCompile) {
 529                                 // force full recompilation from source
 530                                 this.incrementalCompilationState.forceBatchBuildNextTimeAround();
 531                                 return;
 532                         }
 533                         resultsPendingWeave.addAll(getBinarySourcesFrom(binarySourceSetForFullWeave));
 534                 } else {
 535                         Map binarySourcesToAdd = binarySourceProvider.getBinarySourcesForThisWeave();
 536                         resultsPendingWeave.addAll(getBinarySourcesFrom(binarySourcesToAdd));
 537                 }
 538         }
 539
 540         // private void weave() throws IOException {
 541         // if (debugPipeline)System.err.println("> weave()");
 542         // // ensure weaver state is set up correctly
 543         // for (Iterator iter = resultsPendingWeave.iterator(); iter.hasNext();) {
 544         // InterimCompilationResult iresult = (InterimCompilationResult) iter.next();
 545         // for (int i = 0; i < iresult.unwovenClassFiles().length; i++) {
 546         // weaver.addClassFile(iresult.unwovenClassFiles()[i]);
 547         // }
 548         // }
 549         //
 550         // weaver.setIsBatchWeave(isBatchCompile);
 551         // weaver.prepareForWeave();
 552         // if (weaver.needToReweaveWorld()) {
 553         // if (!isBatchCompile) {
 554         // //force full recompilation from source
 555         // this.incrementalCompilationState.forceBatchBuildNextTimeAround();
 556         // return;
 557         // }
 558         // resultsPendingWeave.addAll(getBinarySourcesFrom(binarySourceSetForFullWeave));
 559         // } else {
 560         // Map binarySourcesToAdd = binarySourceProvider.getBinarySourcesForThisWeave();
 561         // resultsPendingWeave.addAll(getBinarySourcesFrom(binarySourcesToAdd));
 562         // }
 563         //
 564         // try {
 565         // weaver.weave(new WeaverAdapter(this,weaverMessageHandler,progressListener));
 566         // } finally {
 567         // weaver.tidyUp();
 568         // IMessageHandler imh = weaver.getWorld().getMessageHandler();
 569         // if (imh instanceof WeaverMessageHandler)
 570         // ((WeaverMessageHandler)imh).resetCompiler(null);
 571         // }
 572         // if (debugPipeline)System.err.println("< weave()");
 573         // }
 574
 575         private void postWeave() {
 576                 if (debugPipeline) {
 577                         System.err.println("> postWeave()");
 578                 }
 579                 IMessageHandler imh = weaver.getWorld().getMessageHandler();
 580                 if (imh instanceof WeaverMessageHandler) {
 581                         ((WeaverMessageHandler) imh).setCurrentResult(null);
 582                 }
 583                 if (!droppingBackToFullBuild) {
 584                         weaver.allWeavingComplete();
 585                 }
 586                 weaver.tidyUp();
 587                 if (imh instanceof WeaverMessageHandler) {
 588                         ((WeaverMessageHandler) imh).resetCompiler(null);
 589                 }
 590                 if (debugPipeline) {
 591                         System.err.println("< postWeave()");
 592                 }
 593         }
 594
 595         /**
 596          * Return true if the compilation unit declaration contains an aspect declaration (either code style or annotation style). It
 597          * must inspect the multiple types that may be in a compilation unit declaration and any inner types.
 598          */
 599         private boolean containsAnAspect(CompilationUnitDeclaration cud) {
 600                 TypeDeclaration[] typeDecls = cud.types;
 601                 if (typeDecls != null) {
 602                         for (TypeDeclaration declaration : typeDecls) { // loop through top level types in the file
 603                                 if (isAspect(declaration)) {
 604                                         return true;
 605                                 }
 606                                 if (declaration.memberTypes != null) {
 607                                         TypeDeclaration[] memberTypes = declaration.memberTypes;
 608                                         for (TypeDeclaration memberType : memberTypes) { // loop through inner types
 609                                                 if (containsAnAspect(memberType)) {
 610                                                         return true;
 611                                                 }
 612                                         }
 613                                 }
 614                         }
 615                 }
 616                 return false;
 617         }
 618
 619         private boolean containsAnAspect(TypeDeclaration tDecl) {
 620                 if (isAspect(tDecl)) {
 621                         return true;
 622                 }
 623                 if (tDecl.memberTypes != null) {
 624                         TypeDeclaration[] memberTypes = tDecl.memberTypes;
 625                         for (TypeDeclaration memberType : memberTypes) { // loop through inner types
 626                                 if (containsAnAspect(memberType)) {
 627                                         return true;
 628                                 }
 629                         }
 630                 }
 631                 return false;
 632         }
 633
 634         private static final char[] aspectSig = "Lorg/aspectj/lang/annotation/Aspect;".toCharArray();
 635
 636         private boolean isAspect(TypeDeclaration declaration) {
 637                 // avoid an NPE when something else is wrong in this system ... the real problem will be reported elsewhere
 638                 if (declaration.staticInitializerScope == null) {
 639                         return false;
 640                 }
 641                 if (declaration instanceof AspectDeclaration) {
 642                         return true; // code style
 643                 } else if (declaration.annotations != null) { // check for annotation style
 644                         for (int index = 0; index < declaration.annotations.length; index++) {
 645                                 // Cause annotation resolution
 646                                 declaration.binding.getAnnotationTagBits();
 647                                 Annotation a = declaration.annotations[index];
 648                                 if (a.resolvedType == null) {
 649                                         continue; // another problem is being reported, so don't crash here
 650                                 }
 651                                 if (CharOperation.equals(a.resolvedType.signature(), aspectSig)) {
 652                                         return true;
 653                                 }
 654                         }
 655                 }
 656                 return false;
 657         }
 658
 659         // ---
 660         /**
 661          * SECRET: FOR TESTING - this can be used to collect information that tests can verify.
 662          */
 663         public static boolean pipelineTesting = false;
 664         public static Hashtable<String, String> pipelineOutput = null;
 665
 666         // Keys into pipelineOutput:
 667         // compileOrder "[XXX,YYY]" a list of the order in which files will be woven (aspects should be first)
 668         // filesContainingAspects "NNN" how many input source files have aspects inside
 669         //
 670
 671         public static String getPipelineDebugOutput(String key) {
 672                 if (pipelineOutput == null) {
 673                         return "";
 674                 }
 675                 return pipelineOutput.get(key);
 676         }
 677
 678         private final static boolean debugPipeline = false;
 679
 680         public List<InterimCompilationResult> getResultsPendingWeave() {
 681                 return resultsPendingWeave;
 682         }
 683
 684 }