Thu, 28 Oct 2010 18:58:43 -0700
6994946: option to specify only syntax errors as unrecoverable
Reviewed-by: darcy, mcimadamore
1 /*
2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.javac.processing;
28 import java.lang.reflect.*;
29 import java.util.*;
30 import java.util.regex.*;
32 import java.net.URL;
33 import java.io.Closeable;
34 import java.io.File;
35 import java.io.PrintWriter;
36 import java.io.IOException;
37 import java.net.MalformedURLException;
38 import java.io.StringWriter;
40 import javax.annotation.processing.*;
41 import javax.lang.model.SourceVersion;
42 import javax.lang.model.element.AnnotationMirror;
43 import javax.lang.model.element.Element;
44 import javax.lang.model.element.TypeElement;
45 import javax.lang.model.element.PackageElement;
46 import javax.lang.model.util.*;
47 import javax.tools.JavaFileManager;
48 import javax.tools.StandardJavaFileManager;
49 import javax.tools.JavaFileObject;
50 import javax.tools.DiagnosticListener;
52 //308 import com.sun.source.util.AbstractTypeProcessor;
53 import com.sun.source.util.TaskEvent;
54 import com.sun.source.util.TaskListener;
55 import com.sun.tools.javac.api.JavacTaskImpl;
56 import com.sun.tools.javac.api.JavacTrees;
57 import com.sun.tools.javac.code.*;
58 import com.sun.tools.javac.code.Symbol.*;
59 import com.sun.tools.javac.file.JavacFileManager;
60 import com.sun.tools.javac.jvm.*;
61 import com.sun.tools.javac.main.JavaCompiler;
62 import com.sun.tools.javac.main.JavaCompiler.CompileState;
63 import com.sun.tools.javac.model.JavacElements;
64 import com.sun.tools.javac.model.JavacTypes;
65 import com.sun.tools.javac.parser.*;
66 import com.sun.tools.javac.tree.*;
67 import com.sun.tools.javac.tree.JCTree.*;
68 import com.sun.tools.javac.util.Abort;
69 import com.sun.tools.javac.util.Context;
70 import com.sun.tools.javac.util.Convert;
71 import com.sun.tools.javac.util.FatalError;
72 import com.sun.tools.javac.util.JCDiagnostic;
73 import com.sun.tools.javac.util.List;
74 import com.sun.tools.javac.util.Log;
75 import com.sun.tools.javac.util.JavacMessages;
76 import com.sun.tools.javac.util.Name;
77 import com.sun.tools.javac.util.Names;
78 import com.sun.tools.javac.util.Options;
80 import static javax.tools.StandardLocation.*;
81 import static com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag.*;
82 import static com.sun.tools.javac.main.OptionName.*;
83 import static com.sun.tools.javac.code.Lint.LintCategory.PROCESSING;
85 /**
86 * Objects of this class hold and manage the state needed to support
87 * annotation processing.
88 *
89 * <p><b>This is NOT part of any supported API.
90 * If you write code that depends on this, you do so at your own risk.
91 * This code and its internal interfaces are subject to change or
92 * deletion without notice.</b>
93 */
94 public class JavacProcessingEnvironment implements ProcessingEnvironment, Closeable {
95 Options options;
97 private final boolean printProcessorInfo;
98 private final boolean printRounds;
99 private final boolean verbose;
100 private final boolean lint;
101 private final boolean procOnly;
102 private final boolean fatalErrors;
103 private final boolean werror;
104 private final boolean showResolveErrors;
105 private boolean foundTypeProcessors;
107 private final JavacFiler filer;
108 private final JavacMessager messager;
109 private final JavacElements elementUtils;
110 private final JavacTypes typeUtils;
112 /**
113 * Holds relevant state history of which processors have been
114 * used.
115 */
116 private DiscoveredProcessors discoveredProcs;
118 /**
119 * Map of processor-specific options.
120 */
121 private final Map<String, String> processorOptions;
123 /**
124 */
125 private final Set<String> unmatchedProcessorOptions;
127 /**
128 * Annotations implicitly processed and claimed by javac.
129 */
130 private final Set<String> platformAnnotations;
132 /**
133 * Set of packages given on command line.
134 */
135 private Set<PackageSymbol> specifiedPackages = Collections.emptySet();
137 /** The log to be used for error reporting.
138 */
139 Log log;
141 /** Diagnostic factory.
142 */
143 JCDiagnostic.Factory diags;
145 /**
146 * Source level of the compile.
147 */
148 Source source;
150 private ClassLoader processorClassLoader;
152 /**
153 * JavacMessages object used for localization
154 */
155 private JavacMessages messages;
157 private Context context;
159 public JavacProcessingEnvironment(Context context, Iterable<? extends Processor> processors) {
160 this.context = context;
161 log = Log.instance(context);
162 source = Source.instance(context);
163 diags = JCDiagnostic.Factory.instance(context);
164 options = Options.instance(context);
165 printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);
166 printRounds = options.isSet(XPRINTROUNDS);
167 verbose = options.isSet(VERBOSE);
168 lint = Lint.instance(context).isEnabled(PROCESSING);
169 procOnly = options.isSet(PROC, "only") || options.isSet(XPRINT);
170 fatalErrors = options.isSet("fatalEnterError");
171 showResolveErrors = options.isSet("showResolveErrors");
172 werror = options.isSet(WERROR);
173 platformAnnotations = initPlatformAnnotations();
174 foundTypeProcessors = false;
176 // Initialize services before any processors are initialized
177 // in case processors use them.
178 filer = new JavacFiler(context);
179 messager = new JavacMessager(context, this);
180 elementUtils = JavacElements.instance(context);
181 typeUtils = JavacTypes.instance(context);
182 processorOptions = initProcessorOptions(context);
183 unmatchedProcessorOptions = initUnmatchedProcessorOptions();
184 messages = JavacMessages.instance(context);
185 initProcessorIterator(context, processors);
186 }
188 private Set<String> initPlatformAnnotations() {
189 Set<String> platformAnnotations = new HashSet<String>();
190 platformAnnotations.add("java.lang.Deprecated");
191 platformAnnotations.add("java.lang.Override");
192 platformAnnotations.add("java.lang.SuppressWarnings");
193 platformAnnotations.add("java.lang.annotation.Documented");
194 platformAnnotations.add("java.lang.annotation.Inherited");
195 platformAnnotations.add("java.lang.annotation.Retention");
196 platformAnnotations.add("java.lang.annotation.Target");
197 return Collections.unmodifiableSet(platformAnnotations);
198 }
200 private void initProcessorIterator(Context context, Iterable<? extends Processor> processors) {
201 Log log = Log.instance(context);
202 Iterator<? extends Processor> processorIterator;
204 if (options.isSet(XPRINT)) {
205 try {
206 Processor processor = PrintingProcessor.class.newInstance();
207 processorIterator = List.of(processor).iterator();
208 } catch (Throwable t) {
209 AssertionError assertError =
210 new AssertionError("Problem instantiating PrintingProcessor.");
211 assertError.initCause(t);
212 throw assertError;
213 }
214 } else if (processors != null) {
215 processorIterator = processors.iterator();
216 } else {
217 String processorNames = options.get(PROCESSOR);
218 JavaFileManager fileManager = context.get(JavaFileManager.class);
219 try {
220 // If processorpath is not explicitly set, use the classpath.
221 processorClassLoader = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)
222 ? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)
223 : fileManager.getClassLoader(CLASS_PATH);
225 /*
226 * If the "-processor" option is used, search the appropriate
227 * path for the named class. Otherwise, use a service
228 * provider mechanism to create the processor iterator.
229 */
230 if (processorNames != null) {
231 processorIterator = new NameProcessIterator(processorNames, processorClassLoader, log);
232 } else {
233 processorIterator = new ServiceIterator(processorClassLoader, log);
234 }
235 } catch (SecurityException e) {
236 /*
237 * A security exception will occur if we can't create a classloader.
238 * Ignore the exception if, with hindsight, we didn't need it anyway
239 * (i.e. no processor was specified either explicitly, or implicitly,
240 * in service configuration file.) Otherwise, we cannot continue.
241 */
242 processorIterator = handleServiceLoaderUnavailability("proc.cant.create.loader", e);
243 }
244 }
245 discoveredProcs = new DiscoveredProcessors(processorIterator);
246 }
248 /**
249 * Returns an empty processor iterator if no processors are on the
250 * relevant path, otherwise if processors are present, logs an
251 * error. Called when a service loader is unavailable for some
252 * reason, either because a service loader class cannot be found
253 * or because a security policy prevents class loaders from being
254 * created.
255 *
256 * @param key The resource key to use to log an error message
257 * @param e If non-null, pass this exception to Abort
258 */
259 private Iterator<Processor> handleServiceLoaderUnavailability(String key, Exception e) {
260 JavaFileManager fileManager = context.get(JavaFileManager.class);
262 if (fileManager instanceof JavacFileManager) {
263 StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;
264 Iterable<? extends File> workingPath = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)
265 ? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)
266 : standardFileManager.getLocation(CLASS_PATH);
268 if (needClassLoader(options.get(PROCESSOR), workingPath) )
269 handleException(key, e);
271 } else {
272 handleException(key, e);
273 }
275 java.util.List<Processor> pl = Collections.emptyList();
276 return pl.iterator();
277 }
279 /**
280 * Handle a security exception thrown during initializing the
281 * Processor iterator.
282 */
283 private void handleException(String key, Exception e) {
284 if (e != null) {
285 log.error(key, e.getLocalizedMessage());
286 throw new Abort(e);
287 } else {
288 log.error(key);
289 throw new Abort();
290 }
291 }
293 /**
294 * Use a service loader appropriate for the platform to provide an
295 * iterator over annotations processors. If
296 * java.util.ServiceLoader is present use it, otherwise, use
297 * sun.misc.Service, otherwise fail if a loader is needed.
298 */
299 private class ServiceIterator implements Iterator<Processor> {
300 // The to-be-wrapped iterator.
301 private Iterator<?> iterator;
302 private Log log;
303 private Class<?> loaderClass;
304 private boolean jusl;
305 private Object loader;
307 ServiceIterator(ClassLoader classLoader, Log log) {
308 String loadMethodName;
310 this.log = log;
311 try {
312 try {
313 loaderClass = Class.forName("java.util.ServiceLoader");
314 loadMethodName = "load";
315 jusl = true;
316 } catch (ClassNotFoundException cnfe) {
317 try {
318 loaderClass = Class.forName("sun.misc.Service");
319 loadMethodName = "providers";
320 jusl = false;
321 } catch (ClassNotFoundException cnfe2) {
322 // Fail softly if a loader is not actually needed.
323 this.iterator = handleServiceLoaderUnavailability("proc.no.service",
324 null);
325 return;
326 }
327 }
329 // java.util.ServiceLoader.load or sun.misc.Service.providers
330 Method loadMethod = loaderClass.getMethod(loadMethodName,
331 Class.class,
332 ClassLoader.class);
334 Object result = loadMethod.invoke(null,
335 Processor.class,
336 classLoader);
338 // For java.util.ServiceLoader, we have to call another
339 // method to get the iterator.
340 if (jusl) {
341 loader = result; // Store ServiceLoader to call reload later
342 Method m = loaderClass.getMethod("iterator");
343 result = m.invoke(result); // serviceLoader.iterator();
344 }
346 // The result should now be an iterator.
347 this.iterator = (Iterator<?>) result;
348 } catch (Throwable t) {
349 log.error("proc.service.problem");
350 throw new Abort(t);
351 }
352 }
354 public boolean hasNext() {
355 try {
356 return iterator.hasNext();
357 } catch (Throwable t) {
358 if ("ServiceConfigurationError".
359 equals(t.getClass().getSimpleName())) {
360 log.error("proc.bad.config.file", t.getLocalizedMessage());
361 }
362 throw new Abort(t);
363 }
364 }
366 public Processor next() {
367 try {
368 return (Processor)(iterator.next());
369 } catch (Throwable t) {
370 if ("ServiceConfigurationError".
371 equals(t.getClass().getSimpleName())) {
372 log.error("proc.bad.config.file", t.getLocalizedMessage());
373 } else {
374 log.error("proc.processor.constructor.error", t.getLocalizedMessage());
375 }
376 throw new Abort(t);
377 }
378 }
380 public void remove() {
381 throw new UnsupportedOperationException();
382 }
384 public void close() {
385 if (jusl) {
386 try {
387 // Call java.util.ServiceLoader.reload
388 Method reloadMethod = loaderClass.getMethod("reload");
389 reloadMethod.invoke(loader);
390 } catch(Exception e) {
391 ; // Ignore problems during a call to reload.
392 }
393 }
394 }
395 }
398 private static class NameProcessIterator implements Iterator<Processor> {
399 Processor nextProc = null;
400 Iterator<String> names;
401 ClassLoader processorCL;
402 Log log;
404 NameProcessIterator(String names, ClassLoader processorCL, Log log) {
405 this.names = Arrays.asList(names.split(",")).iterator();
406 this.processorCL = processorCL;
407 this.log = log;
408 }
410 public boolean hasNext() {
411 if (nextProc != null)
412 return true;
413 else {
414 if (!names.hasNext())
415 return false;
416 else {
417 String processorName = names.next();
419 Processor processor;
420 try {
421 try {
422 processor =
423 (Processor) (processorCL.loadClass(processorName).newInstance());
424 } catch (ClassNotFoundException cnfe) {
425 log.error("proc.processor.not.found", processorName);
426 return false;
427 } catch (ClassCastException cce) {
428 log.error("proc.processor.wrong.type", processorName);
429 return false;
430 } catch (Exception e ) {
431 log.error("proc.processor.cant.instantiate", processorName);
432 return false;
433 }
434 } catch(Throwable t) {
435 throw new AnnotationProcessingError(t);
436 }
437 nextProc = processor;
438 return true;
439 }
441 }
442 }
444 public Processor next() {
445 if (hasNext()) {
446 Processor p = nextProc;
447 nextProc = null;
448 return p;
449 } else
450 throw new NoSuchElementException();
451 }
453 public void remove () {
454 throw new UnsupportedOperationException();
455 }
456 }
458 public boolean atLeastOneProcessor() {
459 return discoveredProcs.iterator().hasNext();
460 }
462 private Map<String, String> initProcessorOptions(Context context) {
463 Options options = Options.instance(context);
464 Set<String> keySet = options.keySet();
465 Map<String, String> tempOptions = new LinkedHashMap<String, String>();
467 for(String key : keySet) {
468 if (key.startsWith("-A") && key.length() > 2) {
469 int sepIndex = key.indexOf('=');
470 String candidateKey = null;
471 String candidateValue = null;
473 if (sepIndex == -1)
474 candidateKey = key.substring(2);
475 else if (sepIndex >= 3) {
476 candidateKey = key.substring(2, sepIndex);
477 candidateValue = (sepIndex < key.length()-1)?
478 key.substring(sepIndex+1) : null;
479 }
480 tempOptions.put(candidateKey, candidateValue);
481 }
482 }
484 return Collections.unmodifiableMap(tempOptions);
485 }
487 private Set<String> initUnmatchedProcessorOptions() {
488 Set<String> unmatchedProcessorOptions = new HashSet<String>();
489 unmatchedProcessorOptions.addAll(processorOptions.keySet());
490 return unmatchedProcessorOptions;
491 }
493 /**
494 * State about how a processor has been used by the tool. If a
495 * processor has been used on a prior round, its process method is
496 * called on all subsequent rounds, perhaps with an empty set of
497 * annotations to process. The {@code annotatedSupported} method
498 * caches the supported annotation information from the first (and
499 * only) getSupportedAnnotationTypes call to the processor.
500 */
501 static class ProcessorState {
502 public Processor processor;
503 public boolean contributed;
504 private ArrayList<Pattern> supportedAnnotationPatterns;
505 private ArrayList<String> supportedOptionNames;
507 ProcessorState(Processor p, Log log, Source source, ProcessingEnvironment env) {
508 processor = p;
509 contributed = false;
511 try {
512 processor.init(env);
514 checkSourceVersionCompatibility(source, log);
516 supportedAnnotationPatterns = new ArrayList<Pattern>();
517 for (String importString : processor.getSupportedAnnotationTypes()) {
518 supportedAnnotationPatterns.add(importStringToPattern(importString,
519 processor,
520 log));
521 }
523 supportedOptionNames = new ArrayList<String>();
524 for (String optionName : processor.getSupportedOptions() ) {
525 if (checkOptionName(optionName, log))
526 supportedOptionNames.add(optionName);
527 }
529 } catch (Throwable t) {
530 throw new AnnotationProcessingError(t);
531 }
532 }
534 /**
535 * Checks whether or not a processor's source version is
536 * compatible with the compilation source version. The
537 * processor's source version needs to be greater than or
538 * equal to the source version of the compile.
539 */
540 private void checkSourceVersionCompatibility(Source source, Log log) {
541 SourceVersion procSourceVersion = processor.getSupportedSourceVersion();
543 if (procSourceVersion.compareTo(Source.toSourceVersion(source)) < 0 ) {
544 log.warning("proc.processor.incompatible.source.version",
545 procSourceVersion,
546 processor.getClass().getName(),
547 source.name);
548 }
549 }
551 private boolean checkOptionName(String optionName, Log log) {
552 boolean valid = isValidOptionName(optionName);
553 if (!valid)
554 log.error("proc.processor.bad.option.name",
555 optionName,
556 processor.getClass().getName());
557 return valid;
558 }
560 public boolean annotationSupported(String annotationName) {
561 for(Pattern p: supportedAnnotationPatterns) {
562 if (p.matcher(annotationName).matches())
563 return true;
564 }
565 return false;
566 }
568 /**
569 * Remove options that are matched by this processor.
570 */
571 public void removeSupportedOptions(Set<String> unmatchedProcessorOptions) {
572 unmatchedProcessorOptions.removeAll(supportedOptionNames);
573 }
574 }
576 // TODO: These two classes can probably be rewritten better...
577 /**
578 * This class holds information about the processors that have
579 * been discoverd so far as well as the means to discover more, if
580 * necessary. A single iterator should be used per round of
581 * annotation processing. The iterator first visits already
582 * discovered processors then fails over to the service provider
583 * mechanism if additional queries are made.
584 */
585 class DiscoveredProcessors implements Iterable<ProcessorState> {
587 class ProcessorStateIterator implements Iterator<ProcessorState> {
588 DiscoveredProcessors psi;
589 Iterator<ProcessorState> innerIter;
590 boolean onProcInterator;
592 ProcessorStateIterator(DiscoveredProcessors psi) {
593 this.psi = psi;
594 this.innerIter = psi.procStateList.iterator();
595 this.onProcInterator = false;
596 }
598 public ProcessorState next() {
599 if (!onProcInterator) {
600 if (innerIter.hasNext())
601 return innerIter.next();
602 else
603 onProcInterator = true;
604 }
606 if (psi.processorIterator.hasNext()) {
607 ProcessorState ps = new ProcessorState(psi.processorIterator.next(),
608 log, source, JavacProcessingEnvironment.this);
609 psi.procStateList.add(ps);
610 return ps;
611 } else
612 throw new NoSuchElementException();
613 }
615 public boolean hasNext() {
616 if (onProcInterator)
617 return psi.processorIterator.hasNext();
618 else
619 return innerIter.hasNext() || psi.processorIterator.hasNext();
620 }
622 public void remove () {
623 throw new UnsupportedOperationException();
624 }
626 /**
627 * Run all remaining processors on the procStateList that
628 * have not already run this round with an empty set of
629 * annotations.
630 */
631 public void runContributingProcs(RoundEnvironment re) {
632 if (!onProcInterator) {
633 Set<TypeElement> emptyTypeElements = Collections.emptySet();
634 while(innerIter.hasNext()) {
635 ProcessorState ps = innerIter.next();
636 if (ps.contributed)
637 callProcessor(ps.processor, emptyTypeElements, re);
638 }
639 }
640 }
641 }
643 Iterator<? extends Processor> processorIterator;
644 ArrayList<ProcessorState> procStateList;
646 public ProcessorStateIterator iterator() {
647 return new ProcessorStateIterator(this);
648 }
650 DiscoveredProcessors(Iterator<? extends Processor> processorIterator) {
651 this.processorIterator = processorIterator;
652 this.procStateList = new ArrayList<ProcessorState>();
653 }
655 /**
656 * Free jar files, etc. if using a service loader.
657 */
658 public void close() {
659 if (processorIterator != null &&
660 processorIterator instanceof ServiceIterator) {
661 ((ServiceIterator) processorIterator).close();
662 }
663 }
664 }
666 private void discoverAndRunProcs(Context context,
667 Set<TypeElement> annotationsPresent,
668 List<ClassSymbol> topLevelClasses,
669 List<PackageSymbol> packageInfoFiles) {
670 Map<String, TypeElement> unmatchedAnnotations =
671 new HashMap<String, TypeElement>(annotationsPresent.size());
673 for(TypeElement a : annotationsPresent) {
674 unmatchedAnnotations.put(a.getQualifiedName().toString(),
675 a);
676 }
678 // Give "*" processors a chance to match
679 if (unmatchedAnnotations.size() == 0)
680 unmatchedAnnotations.put("", null);
682 DiscoveredProcessors.ProcessorStateIterator psi = discoveredProcs.iterator();
683 // TODO: Create proper argument values; need past round
684 // information to fill in this constructor. Note that the 1
685 // st round of processing could be the last round if there
686 // were parse errors on the initial source files; however, we
687 // are not doing processing in that case.
689 Set<Element> rootElements = new LinkedHashSet<Element>();
690 rootElements.addAll(topLevelClasses);
691 rootElements.addAll(packageInfoFiles);
692 rootElements = Collections.unmodifiableSet(rootElements);
694 RoundEnvironment renv = new JavacRoundEnvironment(false,
695 false,
696 rootElements,
697 JavacProcessingEnvironment.this);
699 while(unmatchedAnnotations.size() > 0 && psi.hasNext() ) {
700 ProcessorState ps = psi.next();
701 Set<String> matchedNames = new HashSet<String>();
702 Set<TypeElement> typeElements = new LinkedHashSet<TypeElement>();
704 for (Map.Entry<String, TypeElement> entry: unmatchedAnnotations.entrySet()) {
705 String unmatchedAnnotationName = entry.getKey();
706 if (ps.annotationSupported(unmatchedAnnotationName) ) {
707 matchedNames.add(unmatchedAnnotationName);
708 TypeElement te = entry.getValue();
709 if (te != null)
710 typeElements.add(te);
711 }
712 }
714 if (matchedNames.size() > 0 || ps.contributed) {
715 //308 foundTypeProcessors = foundTypeProcessors || (ps.processor instanceof AbstractTypeProcessor);
716 boolean processingResult = callProcessor(ps.processor, typeElements, renv);
717 ps.contributed = true;
718 ps.removeSupportedOptions(unmatchedProcessorOptions);
720 if (printProcessorInfo || verbose) {
721 log.printNoteLines("x.print.processor.info",
722 ps.processor.getClass().getName(),
723 matchedNames.toString(),
724 processingResult);
725 }
727 if (processingResult) {
728 unmatchedAnnotations.keySet().removeAll(matchedNames);
729 }
731 }
732 }
733 unmatchedAnnotations.remove("");
735 if (lint && unmatchedAnnotations.size() > 0) {
736 // Remove annotations processed by javac
737 unmatchedAnnotations.keySet().removeAll(platformAnnotations);
738 if (unmatchedAnnotations.size() > 0) {
739 log = Log.instance(context);
740 log.warning("proc.annotations.without.processors",
741 unmatchedAnnotations.keySet());
742 }
743 }
745 // Run contributing processors that haven't run yet
746 psi.runContributingProcs(renv);
748 // Debugging
749 if (options.isSet("displayFilerState"))
750 filer.displayState();
751 }
753 /**
754 * Computes the set of annotations on the symbol in question.
755 * Leave class public for external testing purposes.
756 */
757 public static class ComputeAnnotationSet extends
758 ElementScanner7<Set<TypeElement>, Set<TypeElement>> {
759 final Elements elements;
761 public ComputeAnnotationSet(Elements elements) {
762 super();
763 this.elements = elements;
764 }
766 @Override
767 public Set<TypeElement> visitPackage(PackageElement e, Set<TypeElement> p) {
768 // Don't scan enclosed elements of a package
769 return p;
770 }
772 @Override
773 public Set<TypeElement> scan(Element e, Set<TypeElement> p) {
774 for (AnnotationMirror annotationMirror :
775 elements.getAllAnnotationMirrors(e) ) {
776 Element e2 = annotationMirror.getAnnotationType().asElement();
777 p.add((TypeElement) e2);
778 }
779 return super.scan(e, p);
780 }
781 }
783 private boolean callProcessor(Processor proc,
784 Set<? extends TypeElement> tes,
785 RoundEnvironment renv) {
786 try {
787 return proc.process(tes, renv);
788 } catch (CompletionFailure ex) {
789 StringWriter out = new StringWriter();
790 ex.printStackTrace(new PrintWriter(out));
791 log.error("proc.cant.access", ex.sym, ex.getDetailValue(), out.toString());
792 return false;
793 } catch (Throwable t) {
794 throw new AnnotationProcessingError(t);
795 }
796 }
798 /**
799 * Helper object for a single round of annotation processing.
800 */
801 class Round {
802 /** The round number. */
803 final int number;
804 /** The context for the round. */
805 final Context context;
806 /** The compiler for the round. */
807 final JavaCompiler compiler;
808 /** The log for the round. */
809 final Log log;
810 /** The number of warnings in the previous round. */
811 final int priorWarnings;
813 /** The ASTs to be compiled. */
814 List<JCCompilationUnit> roots;
815 /** The classes to be compiler that have were generated. */
816 Map<String, JavaFileObject> genClassFiles;
818 /** The set of annotations to be processed this round. */
819 Set<TypeElement> annotationsPresent;
820 /** The set of top level classes to be processed this round. */
821 List<ClassSymbol> topLevelClasses;
822 /** The set of package-info files to be processed this round. */
823 List<PackageSymbol> packageInfoFiles;
825 /** Create a round (common code). */
826 private Round(Context context, int number, int priorWarnings) {
827 this.context = context;
828 this.number = number;
829 this.priorWarnings = priorWarnings;
831 compiler = JavaCompiler.instance(context);
832 log = Log.instance(context);
833 log.deferDiagnostics = true;
835 // the following is for the benefit of JavacProcessingEnvironment.getContext()
836 JavacProcessingEnvironment.this.context = context;
838 // the following will be populated as needed
839 topLevelClasses = List.nil();
840 packageInfoFiles = List.nil();
841 }
843 /** Create the first round. */
844 Round(Context context, List<JCCompilationUnit> roots, List<ClassSymbol> classSymbols) {
845 this(context, 1, 0);
846 this.roots = roots;
847 genClassFiles = new HashMap<String,JavaFileObject>();
849 compiler.todo.clear(); // free the compiler's resources
851 // The reverse() in the following line is to maintain behavioural
852 // compatibility with the previous revision of the code. Strictly speaking,
853 // it should not be necessary, but a javah golden file test fails without it.
854 topLevelClasses =
855 getTopLevelClasses(roots).prependList(classSymbols.reverse());
857 packageInfoFiles = getPackageInfoFiles(roots);
859 findAnnotationsPresent();
860 }
862 /** Create a new round. */
863 private Round(Round prev,
864 Set<JavaFileObject> newSourceFiles, Map<String,JavaFileObject> newClassFiles) {
865 this(prev.nextContext(), prev.number+1, prev.compiler.log.nwarnings);
866 this.genClassFiles = prev.genClassFiles;
868 List<JCCompilationUnit> parsedFiles = compiler.parseFiles(newSourceFiles);
869 roots = cleanTrees(prev.roots).appendList(parsedFiles);
871 // Check for errors after parsing
872 if (unrecoverableError())
873 return;
875 enterClassFiles(genClassFiles);
876 List<ClassSymbol> newClasses = enterClassFiles(newClassFiles);
877 genClassFiles.putAll(newClassFiles);
878 enterTrees(roots);
880 if (unrecoverableError())
881 return;
883 topLevelClasses = join(
884 getTopLevelClasses(parsedFiles),
885 getTopLevelClassesFromClasses(newClasses));
887 packageInfoFiles = join(
888 getPackageInfoFiles(parsedFiles),
889 getPackageInfoFilesFromClasses(newClasses));
891 findAnnotationsPresent();
892 }
894 /** Create the next round to be used. */
895 Round next(Set<JavaFileObject> newSourceFiles, Map<String, JavaFileObject> newClassFiles) {
896 try {
897 return new Round(this, newSourceFiles, newClassFiles);
898 } finally {
899 compiler.close(false);
900 }
901 }
903 /** Create the compiler to be used for the final compilation. */
904 JavaCompiler finalCompiler(boolean errorStatus) {
905 try {
906 JavaCompiler c = JavaCompiler.instance(nextContext());
907 if (errorStatus) {
908 c.log.nwarnings += priorWarnings + compiler.log.nwarnings;
909 c.log.nerrors += compiler.log.nerrors;
910 }
911 return c;
912 } finally {
913 compiler.close(false);
914 }
915 }
917 /** Return the number of errors found so far in this round.
918 * This may include uncoverable errors, such as parse errors,
919 * and transient errors, such as missing symbols. */
920 int errorCount() {
921 return compiler.errorCount();
922 }
924 /** Return the number of warnings found so far in this round. */
925 int warningCount() {
926 return compiler.warningCount();
927 }
929 /** Return whether or not an unrecoverable error has occurred. */
930 boolean unrecoverableError() {
931 if (messager.errorRaised())
932 return true;
934 for (JCDiagnostic d: log.deferredDiagnostics) {
935 switch (d.getKind()) {
936 case WARNING:
937 if (werror)
938 return true;
939 break;
941 case ERROR:
942 if (fatalErrors || !d.isFlagSet(RECOVERABLE))
943 return true;
944 break;
945 }
946 }
948 return false;
949 }
951 /** Find the set of annotations present in the set of top level
952 * classes and package info files to be processed this round. */
953 void findAnnotationsPresent() {
954 ComputeAnnotationSet annotationComputer = new ComputeAnnotationSet(elementUtils);
955 // Use annotation processing to compute the set of annotations present
956 annotationsPresent = new LinkedHashSet<TypeElement>();
957 for (ClassSymbol classSym : topLevelClasses)
958 annotationComputer.scan(classSym, annotationsPresent);
959 for (PackageSymbol pkgSym : packageInfoFiles)
960 annotationComputer.scan(pkgSym, annotationsPresent);
961 }
963 /** Enter a set of generated class files. */
964 private List<ClassSymbol> enterClassFiles(Map<String, JavaFileObject> classFiles) {
965 ClassReader reader = ClassReader.instance(context);
966 Names names = Names.instance(context);
967 List<ClassSymbol> list = List.nil();
969 for (Map.Entry<String,JavaFileObject> entry : classFiles.entrySet()) {
970 Name name = names.fromString(entry.getKey());
971 JavaFileObject file = entry.getValue();
972 if (file.getKind() != JavaFileObject.Kind.CLASS)
973 throw new AssertionError(file);
974 ClassSymbol cs;
975 if (isPkgInfo(file, JavaFileObject.Kind.CLASS)) {
976 Name packageName = Convert.packagePart(name);
977 PackageSymbol p = reader.enterPackage(packageName);
978 if (p.package_info == null)
979 p.package_info = reader.enterClass(Convert.shortName(name), p);
980 cs = p.package_info;
981 if (cs.classfile == null)
982 cs.classfile = file;
983 } else
984 cs = reader.enterClass(name, file);
985 list = list.prepend(cs);
986 }
987 return list.reverse();
988 }
990 /** Enter a set of syntax trees. */
991 private void enterTrees(List<JCCompilationUnit> roots) {
992 compiler.enterTrees(roots);
993 }
995 /** Run a processing round. */
996 void run(boolean lastRound, boolean errorStatus) {
997 printRoundInfo(lastRound);
999 TaskListener taskListener = context.get(TaskListener.class);
1000 if (taskListener != null)
1001 taskListener.started(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));
1003 try {
1004 if (lastRound) {
1005 filer.setLastRound(true);
1006 Set<Element> emptyRootElements = Collections.emptySet(); // immutable
1007 RoundEnvironment renv = new JavacRoundEnvironment(true,
1008 errorStatus,
1009 emptyRootElements,
1010 JavacProcessingEnvironment.this);
1011 discoveredProcs.iterator().runContributingProcs(renv);
1012 } else {
1013 discoverAndRunProcs(context, annotationsPresent, topLevelClasses, packageInfoFiles);
1014 }
1015 } finally {
1016 if (taskListener != null)
1017 taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));
1018 }
1019 }
1021 void showDiagnostics(boolean showAll) {
1022 Set<JCDiagnostic.Kind> kinds = EnumSet.allOf(JCDiagnostic.Kind.class);
1023 if (!showAll) {
1024 // suppress errors, which are all presumed to be transient resolve errors
1025 kinds.remove(JCDiagnostic.Kind.ERROR);
1026 }
1027 log.reportDeferredDiagnostics(kinds);
1028 }
1030 /** Print info about this round. */
1031 private void printRoundInfo(boolean lastRound) {
1032 if (printRounds || verbose) {
1033 List<ClassSymbol> tlc = lastRound ? List.<ClassSymbol>nil() : topLevelClasses;
1034 Set<TypeElement> ap = lastRound ? Collections.<TypeElement>emptySet() : annotationsPresent;
1035 log.printNoteLines("x.print.rounds",
1036 number,
1037 "{" + tlc.toString(", ") + "}",
1038 ap,
1039 lastRound);
1040 }
1041 }
1043 /** Get the context for the next round of processing.
1044 * Important values are propogated from round to round;
1045 * other values are implicitly reset.
1046 */
1047 private Context nextContext() {
1048 Context next = new Context();
1050 Options options = Options.instance(context);
1051 assert options != null;
1052 next.put(Options.optionsKey, options);
1054 PrintWriter out = context.get(Log.outKey);
1055 assert out != null;
1056 next.put(Log.outKey, out);
1058 final boolean shareNames = true;
1059 if (shareNames) {
1060 Names names = Names.instance(context);
1061 assert names != null;
1062 next.put(Names.namesKey, names);
1063 }
1065 DiagnosticListener<?> dl = context.get(DiagnosticListener.class);
1066 if (dl != null)
1067 next.put(DiagnosticListener.class, dl);
1069 TaskListener tl = context.get(TaskListener.class);
1070 if (tl != null)
1071 next.put(TaskListener.class, tl);
1073 JavaFileManager jfm = context.get(JavaFileManager.class);
1074 assert jfm != null;
1075 next.put(JavaFileManager.class, jfm);
1076 if (jfm instanceof JavacFileManager) {
1077 ((JavacFileManager)jfm).setContext(next);
1078 }
1080 Names names = Names.instance(context);
1081 assert names != null;
1082 next.put(Names.namesKey, names);
1084 Keywords keywords = Keywords.instance(context);
1085 assert(keywords != null);
1086 next.put(Keywords.keywordsKey, keywords);
1088 JavaCompiler oldCompiler = JavaCompiler.instance(context);
1089 JavaCompiler nextCompiler = JavaCompiler.instance(next);
1090 nextCompiler.initRound(oldCompiler);
1092 filer.newRound(next);
1093 messager.newRound(next);
1094 elementUtils.setContext(next);
1095 typeUtils.setContext(next);
1097 JavacTaskImpl task = context.get(JavacTaskImpl.class);
1098 if (task != null) {
1099 next.put(JavacTaskImpl.class, task);
1100 task.updateContext(next);
1101 }
1103 JavacTrees trees = context.get(JavacTrees.class);
1104 if (trees != null) {
1105 next.put(JavacTrees.class, trees);
1106 trees.updateContext(next);
1107 }
1109 context.clear();
1110 return next;
1111 }
1112 }
1115 // TODO: internal catch clauses?; catch and rethrow an annotation
1116 // processing error
1117 public JavaCompiler doProcessing(Context context,
1118 List<JCCompilationUnit> roots,
1119 List<ClassSymbol> classSymbols,
1120 Iterable<? extends PackageSymbol> pckSymbols) {
1122 TaskListener taskListener = context.get(TaskListener.class);
1123 log = Log.instance(context);
1125 Set<PackageSymbol> specifiedPackages = new LinkedHashSet<PackageSymbol>();
1126 for (PackageSymbol psym : pckSymbols)
1127 specifiedPackages.add(psym);
1128 this.specifiedPackages = Collections.unmodifiableSet(specifiedPackages);
1130 Round round = new Round(context, roots, classSymbols);
1132 boolean errorStatus;
1133 boolean moreToDo;
1134 do {
1135 // Run processors for round n
1136 round.run(false, false);
1138 // Processors for round n have run to completion.
1139 // Check for errors and whether there is more work to do.
1140 errorStatus = round.unrecoverableError();
1141 moreToDo = moreToDo();
1143 round.showDiagnostics(errorStatus || showResolveErrors);
1145 // Set up next round.
1146 // Copy mutable collections returned from filer.
1147 round = round.next(
1148 new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects()),
1149 new LinkedHashMap<String,JavaFileObject>(filer.getGeneratedClasses()));
1151 // Check for errors during setup.
1152 if (round.unrecoverableError())
1153 errorStatus = true;
1155 } while (moreToDo && !errorStatus);
1157 // run last round
1158 round.run(true, errorStatus);
1159 round.showDiagnostics(true);
1161 filer.warnIfUnclosedFiles();
1162 warnIfUnmatchedOptions();
1164 /*
1165 * If an annotation processor raises an error in a round,
1166 * that round runs to completion and one last round occurs.
1167 * The last round may also occur because no more source or
1168 * class files have been generated. Therefore, if an error
1169 * was raised on either of the last *two* rounds, the compile
1170 * should exit with a nonzero exit code. The current value of
1171 * errorStatus holds whether or not an error was raised on the
1172 * second to last round; errorRaised() gives the error status
1173 * of the last round.
1174 */
1175 if (messager.errorRaised()
1176 || werror && round.warningCount() > 0 && round.errorCount() > 0)
1177 errorStatus = true;
1179 Set<JavaFileObject> newSourceFiles =
1180 new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects());
1181 roots = cleanTrees(round.roots);
1183 JavaCompiler compiler = round.finalCompiler(errorStatus);
1185 if (newSourceFiles.size() > 0)
1186 roots = roots.appendList(compiler.parseFiles(newSourceFiles));
1188 errorStatus = errorStatus || (compiler.errorCount() > 0);
1190 // Free resources
1191 this.close();
1193 if (taskListener != null)
1194 taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING));
1196 if (errorStatus) {
1197 if (compiler.errorCount() == 0)
1198 compiler.log.nerrors++;
1199 return compiler;
1200 }
1202 if (procOnly && !foundTypeProcessors) {
1203 compiler.todo.clear();
1204 } else {
1205 if (procOnly && foundTypeProcessors)
1206 compiler.shouldStopPolicy = CompileState.FLOW;
1208 compiler.enterTrees(roots);
1209 }
1211 return compiler;
1212 }
1214 private void warnIfUnmatchedOptions() {
1215 if (!unmatchedProcessorOptions.isEmpty()) {
1216 log.warning("proc.unmatched.processor.options", unmatchedProcessorOptions.toString());
1217 }
1218 }
1220 /**
1221 * Free resources related to annotation processing.
1222 */
1223 public void close() {
1224 filer.close();
1225 if (discoveredProcs != null) // Make calling close idempotent
1226 discoveredProcs.close();
1227 discoveredProcs = null;
1228 if (processorClassLoader != null && processorClassLoader instanceof Closeable) {
1229 try {
1230 ((Closeable) processorClassLoader).close();
1231 } catch (IOException e) {
1232 JCDiagnostic msg = diags.fragment("fatal.err.cant.close.loader");
1233 throw new FatalError(msg, e);
1234 }
1235 }
1236 }
1238 private List<ClassSymbol> getTopLevelClasses(List<? extends JCCompilationUnit> units) {
1239 List<ClassSymbol> classes = List.nil();
1240 for (JCCompilationUnit unit : units) {
1241 for (JCTree node : unit.defs) {
1242 if (node.getTag() == JCTree.CLASSDEF) {
1243 ClassSymbol sym = ((JCClassDecl) node).sym;
1244 assert sym != null;
1245 classes = classes.prepend(sym);
1246 }
1247 }
1248 }
1249 return classes.reverse();
1250 }
1252 private List<ClassSymbol> getTopLevelClassesFromClasses(List<? extends ClassSymbol> syms) {
1253 List<ClassSymbol> classes = List.nil();
1254 for (ClassSymbol sym : syms) {
1255 if (!isPkgInfo(sym)) {
1256 classes = classes.prepend(sym);
1257 }
1258 }
1259 return classes.reverse();
1260 }
1262 private List<PackageSymbol> getPackageInfoFiles(List<? extends JCCompilationUnit> units) {
1263 List<PackageSymbol> packages = List.nil();
1264 for (JCCompilationUnit unit : units) {
1265 if (isPkgInfo(unit.sourcefile, JavaFileObject.Kind.SOURCE)) {
1266 packages = packages.prepend(unit.packge);
1267 }
1268 }
1269 return packages.reverse();
1270 }
1272 private List<PackageSymbol> getPackageInfoFilesFromClasses(List<? extends ClassSymbol> syms) {
1273 List<PackageSymbol> packages = List.nil();
1274 for (ClassSymbol sym : syms) {
1275 if (isPkgInfo(sym)) {
1276 packages = packages.prepend((PackageSymbol) sym.owner);
1277 }
1278 }
1279 return packages.reverse();
1280 }
1282 // avoid unchecked warning from use of varargs
1283 private static <T> List<T> join(List<T> list1, List<T> list2) {
1284 return list1.appendList(list2);
1285 }
1287 private boolean isPkgInfo(JavaFileObject fo, JavaFileObject.Kind kind) {
1288 return fo.isNameCompatible("package-info", kind);
1289 }
1291 private boolean isPkgInfo(ClassSymbol sym) {
1292 return isPkgInfo(sym.classfile, JavaFileObject.Kind.CLASS) && (sym.packge().package_info == sym);
1293 }
1295 /*
1296 * Called retroactively to determine if a class loader was required,
1297 * after we have failed to create one.
1298 */
1299 private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {
1300 if (procNames != null)
1301 return true;
1303 String procPath;
1304 URL[] urls = new URL[1];
1305 for(File pathElement : workingpath) {
1306 try {
1307 urls[0] = pathElement.toURI().toURL();
1308 if (ServiceProxy.hasService(Processor.class, urls))
1309 return true;
1310 } catch (MalformedURLException ex) {
1311 throw new AssertionError(ex);
1312 }
1313 catch (ServiceProxy.ServiceConfigurationError e) {
1314 log.error("proc.bad.config.file", e.getLocalizedMessage());
1315 return true;
1316 }
1317 }
1319 return false;
1320 }
1322 private static <T extends JCTree> List<T> cleanTrees(List<T> nodes) {
1323 for (T node : nodes)
1324 treeCleaner.scan(node);
1325 return nodes;
1326 }
1328 private static TreeScanner treeCleaner = new TreeScanner() {
1329 public void scan(JCTree node) {
1330 super.scan(node);
1331 if (node != null)
1332 node.type = null;
1333 }
1334 public void visitTopLevel(JCCompilationUnit node) {
1335 node.packge = null;
1336 super.visitTopLevel(node);
1337 }
1338 public void visitClassDef(JCClassDecl node) {
1339 node.sym = null;
1340 super.visitClassDef(node);
1341 }
1342 public void visitMethodDef(JCMethodDecl node) {
1343 node.sym = null;
1344 super.visitMethodDef(node);
1345 }
1346 public void visitVarDef(JCVariableDecl node) {
1347 node.sym = null;
1348 super.visitVarDef(node);
1349 }
1350 public void visitNewClass(JCNewClass node) {
1351 node.constructor = null;
1352 super.visitNewClass(node);
1353 }
1354 public void visitAssignop(JCAssignOp node) {
1355 node.operator = null;
1356 super.visitAssignop(node);
1357 }
1358 public void visitUnary(JCUnary node) {
1359 node.operator = null;
1360 super.visitUnary(node);
1361 }
1362 public void visitBinary(JCBinary node) {
1363 node.operator = null;
1364 super.visitBinary(node);
1365 }
1366 public void visitSelect(JCFieldAccess node) {
1367 node.sym = null;
1368 super.visitSelect(node);
1369 }
1370 public void visitIdent(JCIdent node) {
1371 node.sym = null;
1372 super.visitIdent(node);
1373 }
1374 };
1377 private boolean moreToDo() {
1378 return filer.newFiles();
1379 }
1381 /**
1382 * {@inheritdoc}
1383 *
1384 * Command line options suitable for presenting to annotation
1385 * processors. "-Afoo=bar" should be "-Afoo" => "bar".
1386 */
1387 public Map<String,String> getOptions() {
1388 return processorOptions;
1389 }
1391 public Messager getMessager() {
1392 return messager;
1393 }
1395 public Filer getFiler() {
1396 return filer;
1397 }
1399 public JavacElements getElementUtils() {
1400 return elementUtils;
1401 }
1403 public JavacTypes getTypeUtils() {
1404 return typeUtils;
1405 }
1407 public SourceVersion getSourceVersion() {
1408 return Source.toSourceVersion(source);
1409 }
1411 public Locale getLocale() {
1412 return messages.getCurrentLocale();
1413 }
1415 public Set<Symbol.PackageSymbol> getSpecifiedPackages() {
1416 return specifiedPackages;
1417 }
1419 private static final Pattern allMatches = Pattern.compile(".*");
1420 public static final Pattern noMatches = Pattern.compile("(\\P{all})+");
1422 /**
1423 * Convert import-style string for supported annotations into a
1424 * regex matching that string. If the string is a valid
1425 * import-style string, return a regex that won't match anything.
1426 */
1427 private static Pattern importStringToPattern(String s, Processor p, Log log) {
1428 if (isValidImportString(s)) {
1429 return validImportStringToPattern(s);
1430 } else {
1431 log.warning("proc.malformed.supported.string", s, p.getClass().getName());
1432 return noMatches; // won't match any valid identifier
1433 }
1434 }
1436 /**
1437 * Return true if the argument string is a valid import-style
1438 * string specifying claimed annotations; return false otherwise.
1439 */
1440 public static boolean isValidImportString(String s) {
1441 if (s.equals("*"))
1442 return true;
1444 boolean valid = true;
1445 String t = s;
1446 int index = t.indexOf('*');
1448 if (index != -1) {
1449 // '*' must be last character...
1450 if (index == t.length() -1) {
1451 // ... any and preceding character must be '.'
1452 if ( index-1 >= 0 ) {
1453 valid = t.charAt(index-1) == '.';
1454 // Strip off ".*$" for identifier checks
1455 t = t.substring(0, t.length()-2);
1456 }
1457 } else
1458 return false;
1459 }
1461 // Verify string is off the form (javaId \.)+ or javaId
1462 if (valid) {
1463 String[] javaIds = t.split("\\.", t.length()+2);
1464 for(String javaId: javaIds)
1465 valid &= SourceVersion.isIdentifier(javaId);
1466 }
1467 return valid;
1468 }
1470 public static Pattern validImportStringToPattern(String s) {
1471 if (s.equals("*")) {
1472 return allMatches;
1473 } else {
1474 String s_prime = s.replace(".", "\\.");
1476 if (s_prime.endsWith("*")) {
1477 s_prime = s_prime.substring(0, s_prime.length() - 1) + ".+";
1478 }
1480 return Pattern.compile(s_prime);
1481 }
1482 }
1484 /**
1485 * For internal use only. This method will be
1486 * removed without warning.
1487 */
1488 public Context getContext() {
1489 return context;
1490 }
1492 public String toString() {
1493 return "javac ProcessingEnvironment";
1494 }
1496 public static boolean isValidOptionName(String optionName) {
1497 for(String s : optionName.split("\\.", -1)) {
1498 if (!SourceVersion.isIdentifier(s))
1499 return false;
1500 }
1501 return true;
1502 }
1503 }