jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@b0d5f00e69f7

7092965: javac should not close processorClassLoader before end of compilation
Reviewed-by: darcy

     1 /*

     2  * Copyright (c) 2005, 2011, 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.io.StringWriter;

    38 import java.net.MalformedURLException;

    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 import com.sun.source.util.TaskEvent;

    53 import com.sun.source.util.TaskListener;

    54 import com.sun.tools.javac.api.JavacTaskImpl;

    55 import com.sun.tools.javac.api.JavacTrees;

    56 import com.sun.tools.javac.code.*;

    57 import com.sun.tools.javac.code.Symbol.*;

    58 import com.sun.tools.javac.file.FSInfo;

    59 import com.sun.tools.javac.file.JavacFileManager;

    60 import com.sun.tools.javac.jvm.*;

    61 import com.sun.tools.javac.jvm.ClassReader.BadClassFile;

    62 import com.sun.tools.javac.main.JavaCompiler;

    63 import com.sun.tools.javac.main.JavaCompiler.CompileState;

    64 import com.sun.tools.javac.model.JavacElements;

    65 import com.sun.tools.javac.model.JavacTypes;

    66 import com.sun.tools.javac.parser.*;

    67 import com.sun.tools.javac.tree.*;

    68 import com.sun.tools.javac.tree.JCTree.*;

    69 import com.sun.tools.javac.util.Abort;

    70 import com.sun.tools.javac.util.Assert;

    71 import com.sun.tools.javac.util.ClientCodeException;

    72 import com.sun.tools.javac.util.Context;

    73 import com.sun.tools.javac.util.Convert;

    74 import com.sun.tools.javac.util.FatalError;

    75 import com.sun.tools.javac.util.JCDiagnostic;

    76 import com.sun.tools.javac.util.List;

    77 import com.sun.tools.javac.util.Log;

    78 import com.sun.tools.javac.util.JavacMessages;

    79 import com.sun.tools.javac.util.Name;

    80 import com.sun.tools.javac.util.Names;

    81 import com.sun.tools.javac.util.Options;

    83 import static javax.tools.StandardLocation.*;

    84 import static com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag.*;

    85 import static com.sun.tools.javac.main.OptionName.*;

    86 import static com.sun.tools.javac.code.Lint.LintCategory.PROCESSING;

    88 /**

    89  * Objects of this class hold and manage the state needed to support

    90  * annotation processing.

    91  *

    92  * <p><b>This is NOT part of any supported API.

    93  * If you write code that depends on this, you do so at your own risk.

    94  * This code and its internal interfaces are subject to change or

    95  * deletion without notice.</b>

    96  */

    97 public class JavacProcessingEnvironment implements ProcessingEnvironment, Closeable {

    98     Options options;

   100     private final boolean printProcessorInfo;

   101     private final boolean printRounds;

   102     private final boolean verbose;

   103     private final boolean lint;

   104     private final boolean procOnly;

   105     private final boolean fatalErrors;

   106     private final boolean werror;

   107     private final boolean showResolveErrors;

   108     private boolean foundTypeProcessors;

   110     private final JavacFiler filer;

   111     private final JavacMessager messager;

   112     private final JavacElements elementUtils;

   113     private final JavacTypes typeUtils;

   115     /**

   116      * Holds relevant state history of which processors have been

   117      * used.

   118      */

   119     private DiscoveredProcessors discoveredProcs;

   121     /**

   122      * Map of processor-specific options.

   123      */

   124     private final Map<String, String> processorOptions;

   126     /**

   127      */

   128     private final Set<String> unmatchedProcessorOptions;

   130     /**

   131      * Annotations implicitly processed and claimed by javac.

   132      */

   133     private final Set<String> platformAnnotations;

   135     /**

   136      * Set of packages given on command line.

   137      */

   138     private Set<PackageSymbol> specifiedPackages = Collections.emptySet();

   140     /** The log to be used for error reporting.

   141      */

   142     Log log;

   144     /** Diagnostic factory.

   145      */

   146     JCDiagnostic.Factory diags;

   148     /**

   149      * Source level of the compile.

   150      */

   151     Source source;

   153     private ClassLoader processorClassLoader;

   155     /**

   156      * JavacMessages object used for localization

   157      */

   158     private JavacMessages messages;

   160     private Context context;

   162     public JavacProcessingEnvironment(Context context, Iterable<? extends Processor> processors) {

   163         this.context = context;

   164         log = Log.instance(context);

   165         source = Source.instance(context);

   166         diags = JCDiagnostic.Factory.instance(context);

   167         options = Options.instance(context);

   168         printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);

   169         printRounds = options.isSet(XPRINTROUNDS);

   170         verbose = options.isSet(VERBOSE);

   171         lint = Lint.instance(context).isEnabled(PROCESSING);

   172         procOnly = options.isSet(PROC, "only") || options.isSet(XPRINT);

   173         fatalErrors = options.isSet("fatalEnterError");

   174         showResolveErrors = options.isSet("showResolveErrors");

   175         werror = options.isSet(WERROR);

   176         platformAnnotations = initPlatformAnnotations();

   177         foundTypeProcessors = false;

   179         // Initialize services before any processors are initialized

   180         // in case processors use them.

   181         filer = new JavacFiler(context);

   182         messager = new JavacMessager(context, this);

   183         elementUtils = JavacElements.instance(context);

   184         typeUtils = JavacTypes.instance(context);

   185         processorOptions = initProcessorOptions(context);

   186         unmatchedProcessorOptions = initUnmatchedProcessorOptions();

   187         messages = JavacMessages.instance(context);

   188         initProcessorIterator(context, processors);

   189     }

   191     private Set<String> initPlatformAnnotations() {

   192         Set<String> platformAnnotations = new HashSet<String>();

   193         platformAnnotations.add("java.lang.Deprecated");

   194         platformAnnotations.add("java.lang.Override");

   195         platformAnnotations.add("java.lang.SuppressWarnings");

   196         platformAnnotations.add("java.lang.annotation.Documented");

   197         platformAnnotations.add("java.lang.annotation.Inherited");

   198         platformAnnotations.add("java.lang.annotation.Retention");

   199         platformAnnotations.add("java.lang.annotation.Target");

   200         return Collections.unmodifiableSet(platformAnnotations);

   201     }

   203     private void initProcessorIterator(Context context, Iterable<? extends Processor> processors) {

   204         Log   log   = Log.instance(context);

   205         Iterator<? extends Processor> processorIterator;

   207         if (options.isSet(XPRINT)) {

   208             try {

   209                 Processor processor = PrintingProcessor.class.newInstance();

   210                 processorIterator = List.of(processor).iterator();

   211             } catch (Throwable t) {

   212                 AssertionError assertError =

   213                     new AssertionError("Problem instantiating PrintingProcessor.");

   214                 assertError.initCause(t);

   215                 throw assertError;

   216             }

   217         } else if (processors != null) {

   218             processorIterator = processors.iterator();

   219         } else {

   220             String processorNames = options.get(PROCESSOR);

   221             JavaFileManager fileManager = context.get(JavaFileManager.class);

   222             try {

   223                 // If processorpath is not explicitly set, use the classpath.

   224                 processorClassLoader = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)

   225                     ? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)

   226                     : fileManager.getClassLoader(CLASS_PATH);

   228                 if (processorClassLoader != null && processorClassLoader instanceof Closeable) {

   229                     JavaCompiler compiler = JavaCompiler.instance(context);

   230                     compiler.closeables = compiler.closeables.prepend((Closeable) processorClassLoader);

   231                 }

   233                 /*

   234                  * If the "-processor" option is used, search the appropriate

   235                  * path for the named class.  Otherwise, use a service

   236                  * provider mechanism to create the processor iterator.

   237                  */

   238                 if (processorNames != null) {

   239                     processorIterator = new NameProcessIterator(processorNames, processorClassLoader, log);

   240                 } else {

   241                     processorIterator = new ServiceIterator(processorClassLoader, log);

   242                 }

   243             } catch (SecurityException e) {

   244                 /*

   245                  * A security exception will occur if we can't create a classloader.

   246                  * Ignore the exception if, with hindsight, we didn't need it anyway

   247                  * (i.e. no processor was specified either explicitly, or implicitly,

   248                  * in service configuration file.) Otherwise, we cannot continue.

   249                  */

   250                 processorIterator = handleServiceLoaderUnavailability("proc.cant.create.loader", e);

   251             }

   252         }

   253         discoveredProcs = new DiscoveredProcessors(processorIterator);

   254     }

   256     /**

   257      * Returns an empty processor iterator if no processors are on the

   258      * relevant path, otherwise if processors are present, logs an

   259      * error.  Called when a service loader is unavailable for some

   260      * reason, either because a service loader class cannot be found

   261      * or because a security policy prevents class loaders from being

   262      * created.

   263      *

   264      * @param key The resource key to use to log an error message

   265      * @param e   If non-null, pass this exception to Abort

   266      */

   267     private Iterator<Processor> handleServiceLoaderUnavailability(String key, Exception e) {

   268         JavaFileManager fileManager = context.get(JavaFileManager.class);

   270         if (fileManager instanceof JavacFileManager) {

   271             StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;

   272             Iterable<? extends File> workingPath = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)

   273                 ? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)

   274                 : standardFileManager.getLocation(CLASS_PATH);

   276             if (needClassLoader(options.get(PROCESSOR), workingPath) )

   277                 handleException(key, e);

   279         } else {

   280             handleException(key, e);

   281         }

   283         java.util.List<Processor> pl = Collections.emptyList();

   284         return pl.iterator();

   285     }

   287     /**

   288      * Handle a security exception thrown during initializing the

   289      * Processor iterator.

   290      */

   291     private void handleException(String key, Exception e) {

   292         if (e != null) {

   293             log.error(key, e.getLocalizedMessage());

   294             throw new Abort(e);

   295         } else {

   296             log.error(key);

   297             throw new Abort();

   298         }

   299     }

   301     /**

   302      * Use a service loader appropriate for the platform to provide an

   303      * iterator over annotations processors; fails if a loader is

   304      * needed but unavailable.

   305      */

   306     private class ServiceIterator implements Iterator<Processor> {

   307         private Iterator<Processor> iterator;

   308         private Log log;

   309         private ServiceLoader<Processor> loader;

   311         ServiceIterator(ClassLoader classLoader, Log log) {

   312             this.log = log;

   313             try {

   314                 try {

   315                     loader = ServiceLoader.load(Processor.class, classLoader);

   316                     this.iterator = loader.iterator();

   317                 } catch (Exception e) {

   318                     // Fail softly if a loader is not actually needed.

   319                     this.iterator = handleServiceLoaderUnavailability("proc.no.service", null);

   320                 }

   321             } catch (Throwable t) {

   322                 log.error("proc.service.problem");

   323                 throw new Abort(t);

   324             }

   325         }

   327         public boolean hasNext() {

   328             try {

   329                 return iterator.hasNext();

   330             } catch(ServiceConfigurationError sce) {

   331                 log.error("proc.bad.config.file", sce.getLocalizedMessage());

   332                 throw new Abort(sce);

   333             } catch (Throwable t) {

   334                 throw new Abort(t);

   335             }

   336         }

   338         public Processor next() {

   339             try {

   340                 return iterator.next();

   341             } catch (ServiceConfigurationError sce) {

   342                 log.error("proc.bad.config.file", sce.getLocalizedMessage());

   343                 throw new Abort(sce);

   344             } catch (Throwable t) {

   345                 throw new Abort(t);

   346             }

   347         }

   349         public void remove() {

   350             throw new UnsupportedOperationException();

   351         }

   353         public void close() {

   354             if (loader != null) {

   355                 try {

   356                     loader.reload();

   357                 } catch(Exception e) {

   358                     ; // Ignore problems during a call to reload.

   359                 }

   360             }

   361         }

   362     }

   365     private static class NameProcessIterator implements Iterator<Processor> {

   366         Processor nextProc = null;

   367         Iterator<String> names;

   368         ClassLoader processorCL;

   369         Log log;

   371         NameProcessIterator(String names, ClassLoader processorCL, Log log) {

   372             this.names = Arrays.asList(names.split(",")).iterator();

   373             this.processorCL = processorCL;

   374             this.log = log;

   375         }

   377         public boolean hasNext() {

   378             if (nextProc != null)

   379                 return true;

   380             else {

   381                 if (!names.hasNext())

   382                     return false;

   383                 else {

   384                     String processorName = names.next();

   386                     Processor processor;

   387                     try {

   388                         try {

   389                             processor =

   390                                 (Processor) (processorCL.loadClass(processorName).newInstance());

   391                         } catch (ClassNotFoundException cnfe) {

   392                             log.error("proc.processor.not.found", processorName);

   393                             return false;

   394                         } catch (ClassCastException cce) {

   395                             log.error("proc.processor.wrong.type", processorName);

   396                             return false;

   397                         } catch (Exception e ) {

   398                             log.error("proc.processor.cant.instantiate", processorName);

   399                             return false;

   400                         }

   401                     } catch(ClientCodeException e) {

   402                         throw e;

   403                     } catch(Throwable t) {

   404                         throw new AnnotationProcessingError(t);

   405                     }

   406                     nextProc = processor;

   407                     return true;

   408                 }

   410             }

   411         }

   413         public Processor next() {

   414             if (hasNext()) {

   415                 Processor p = nextProc;

   416                 nextProc = null;

   417                 return p;

   418             } else

   419                 throw new NoSuchElementException();

   420         }

   422         public void remove () {

   423             throw new UnsupportedOperationException();

   424         }

   425     }

   427     public boolean atLeastOneProcessor() {

   428         return discoveredProcs.iterator().hasNext();

   429     }

   431     private Map<String, String> initProcessorOptions(Context context) {

   432         Options options = Options.instance(context);

   433         Set<String> keySet = options.keySet();

   434         Map<String, String> tempOptions = new LinkedHashMap<String, String>();

   436         for(String key : keySet) {

   437             if (key.startsWith("-A") && key.length() > 2) {

   438                 int sepIndex = key.indexOf('=');

   439                 String candidateKey = null;

   440                 String candidateValue = null;

   442                 if (sepIndex == -1)

   443                     candidateKey = key.substring(2);

   444                 else if (sepIndex >= 3) {

   445                     candidateKey = key.substring(2, sepIndex);

   446                     candidateValue = (sepIndex < key.length()-1)?

   447                         key.substring(sepIndex+1) : null;

   448                 }

   449                 tempOptions.put(candidateKey, candidateValue);

   450             }

   451         }

   453         return Collections.unmodifiableMap(tempOptions);

   454     }

   456     private Set<String> initUnmatchedProcessorOptions() {

   457         Set<String> unmatchedProcessorOptions = new HashSet<String>();

   458         unmatchedProcessorOptions.addAll(processorOptions.keySet());

   459         return unmatchedProcessorOptions;

   460     }

   462     /**

   463      * State about how a processor has been used by the tool.  If a

   464      * processor has been used on a prior round, its process method is

   465      * called on all subsequent rounds, perhaps with an empty set of

   466      * annotations to process.  The {@code annotatedSupported} method

   467      * caches the supported annotation information from the first (and

   468      * only) getSupportedAnnotationTypes call to the processor.

   469      */

   470     static class ProcessorState {

   471         public Processor processor;

   472         public boolean   contributed;

   473         private ArrayList<Pattern> supportedAnnotationPatterns;

   474         private ArrayList<String>  supportedOptionNames;

   476         ProcessorState(Processor p, Log log, Source source, ProcessingEnvironment env) {

   477             processor = p;

   478             contributed = false;

   480             try {

   481                 processor.init(env);

   483                 checkSourceVersionCompatibility(source, log);

   485                 supportedAnnotationPatterns = new ArrayList<Pattern>();

   486                 for (String importString : processor.getSupportedAnnotationTypes()) {

   487                     supportedAnnotationPatterns.add(importStringToPattern(importString,

   488                                                                           processor,

   489                                                                           log));

   490                 }

   492                 supportedOptionNames = new ArrayList<String>();

   493                 for (String optionName : processor.getSupportedOptions() ) {

   494                     if (checkOptionName(optionName, log))

   495                         supportedOptionNames.add(optionName);

   496                 }

   498             } catch (ClientCodeException e) {

   499                 throw e;

   500             } catch (Throwable t) {

   501                 throw new AnnotationProcessingError(t);

   502             }

   503         }

   505         /**

   506          * Checks whether or not a processor's source version is

   507          * compatible with the compilation source version.  The

   508          * processor's source version needs to be greater than or

   509          * equal to the source version of the compile.

   510          */

   511         private void checkSourceVersionCompatibility(Source source, Log log) {

   512             SourceVersion procSourceVersion = processor.getSupportedSourceVersion();

   514             if (procSourceVersion.compareTo(Source.toSourceVersion(source)) < 0 )  {

   515                 log.warning("proc.processor.incompatible.source.version",

   516                             procSourceVersion,

   517                             processor.getClass().getName(),

   518                             source.name);

   519             }

   520         }

   522         private boolean checkOptionName(String optionName, Log log) {

   523             boolean valid = isValidOptionName(optionName);

   524             if (!valid)

   525                 log.error("proc.processor.bad.option.name",

   526                             optionName,

   527                             processor.getClass().getName());

   528             return valid;

   529         }

   531         public boolean annotationSupported(String annotationName) {

   532             for(Pattern p: supportedAnnotationPatterns) {

   533                 if (p.matcher(annotationName).matches())

   534                     return true;

   535             }

   536             return false;

   537         }

   539         /**

   540          * Remove options that are matched by this processor.

   541          */

   542         public void removeSupportedOptions(Set<String> unmatchedProcessorOptions) {

   543             unmatchedProcessorOptions.removeAll(supportedOptionNames);

   544         }

   545     }

   547     // TODO: These two classes can probably be rewritten better...

   548     /**

   549      * This class holds information about the processors that have

   550      * been discoverd so far as well as the means to discover more, if

   551      * necessary.  A single iterator should be used per round of

   552      * annotation processing.  The iterator first visits already

   553      * discovered processors then fails over to the service provider

   554      * mechanism if additional queries are made.

   555      */

   556     class DiscoveredProcessors implements Iterable<ProcessorState> {

   558         class ProcessorStateIterator implements Iterator<ProcessorState> {

   559             DiscoveredProcessors psi;

   560             Iterator<ProcessorState> innerIter;

   561             boolean onProcInterator;

   563             ProcessorStateIterator(DiscoveredProcessors psi) {

   564                 this.psi = psi;

   565                 this.innerIter = psi.procStateList.iterator();

   566                 this.onProcInterator = false;

   567             }

   569             public ProcessorState next() {

   570                 if (!onProcInterator) {

   571                     if (innerIter.hasNext())

   572                         return innerIter.next();

   573                     else

   574                         onProcInterator = true;

   575                 }

   577                 if (psi.processorIterator.hasNext()) {

   578                     ProcessorState ps = new ProcessorState(psi.processorIterator.next(),

   579                                                            log, source, JavacProcessingEnvironment.this);

   580                     psi.procStateList.add(ps);

   581                     return ps;

   582                 } else

   583                     throw new NoSuchElementException();

   584             }

   586             public boolean hasNext() {

   587                 if (onProcInterator)

   588                     return  psi.processorIterator.hasNext();

   589                 else

   590                     return innerIter.hasNext() || psi.processorIterator.hasNext();

   591             }

   593             public void remove () {

   594                 throw new UnsupportedOperationException();

   595             }

   597             /**

   598              * Run all remaining processors on the procStateList that

   599              * have not already run this round with an empty set of

   600              * annotations.

   601              */

   602             public void runContributingProcs(RoundEnvironment re) {

   603                 if (!onProcInterator) {

   604                     Set<TypeElement> emptyTypeElements = Collections.emptySet();

   605                     while(innerIter.hasNext()) {

   606                         ProcessorState ps = innerIter.next();

   607                         if (ps.contributed)

   608                             callProcessor(ps.processor, emptyTypeElements, re);

   609                     }

   610                 }

   611             }

   612         }

   614         Iterator<? extends Processor> processorIterator;

   615         ArrayList<ProcessorState>  procStateList;

   617         public ProcessorStateIterator iterator() {

   618             return new ProcessorStateIterator(this);

   619         }

   621         DiscoveredProcessors(Iterator<? extends Processor> processorIterator) {

   622             this.processorIterator = processorIterator;

   623             this.procStateList = new ArrayList<ProcessorState>();

   624         }

   626         /**

   627          * Free jar files, etc. if using a service loader.

   628          */

   629         public void close() {

   630             if (processorIterator != null &&

   631                 processorIterator instanceof ServiceIterator) {

   632                 ((ServiceIterator) processorIterator).close();

   633             }

   634         }

   635     }

   637     private void discoverAndRunProcs(Context context,

   638                                      Set<TypeElement> annotationsPresent,

   639                                      List<ClassSymbol> topLevelClasses,

   640                                      List<PackageSymbol> packageInfoFiles) {

   641         Map<String, TypeElement> unmatchedAnnotations =

   642             new HashMap<String, TypeElement>(annotationsPresent.size());

   644         for(TypeElement a  : annotationsPresent) {

   645                 unmatchedAnnotations.put(a.getQualifiedName().toString(),

   646                                          a);

   647         }

   649         // Give "*" processors a chance to match

   650         if (unmatchedAnnotations.size() == 0)

   651             unmatchedAnnotations.put("", null);

   653         DiscoveredProcessors.ProcessorStateIterator psi = discoveredProcs.iterator();

   654         // TODO: Create proper argument values; need past round

   655         // information to fill in this constructor.  Note that the 1

   656         // st round of processing could be the last round if there

   657         // were parse errors on the initial source files; however, we

   658         // are not doing processing in that case.

   660         Set<Element> rootElements = new LinkedHashSet<Element>();

   661         rootElements.addAll(topLevelClasses);

   662         rootElements.addAll(packageInfoFiles);

   663         rootElements = Collections.unmodifiableSet(rootElements);

   665         RoundEnvironment renv = new JavacRoundEnvironment(false,

   666                                                           false,

   667                                                           rootElements,

   668                                                           JavacProcessingEnvironment.this);

   670         while(unmatchedAnnotations.size() > 0 && psi.hasNext() ) {

   671             ProcessorState ps = psi.next();

   672             Set<String>  matchedNames = new HashSet<String>();

   673             Set<TypeElement> typeElements = new LinkedHashSet<TypeElement>();

   675             for (Map.Entry<String, TypeElement> entry: unmatchedAnnotations.entrySet()) {

   676                 String unmatchedAnnotationName = entry.getKey();

   677                 if (ps.annotationSupported(unmatchedAnnotationName) ) {

   678                     matchedNames.add(unmatchedAnnotationName);

   679                     TypeElement te = entry.getValue();

   680                     if (te != null)

   681                         typeElements.add(te);

   682                 }

   683             }

   685             if (matchedNames.size() > 0 || ps.contributed) {

   686                 boolean processingResult = callProcessor(ps.processor, typeElements, renv);

   687                 ps.contributed = true;

   688                 ps.removeSupportedOptions(unmatchedProcessorOptions);

   690                 if (printProcessorInfo || verbose) {

   691                     log.printNoteLines("x.print.processor.info",

   692                             ps.processor.getClass().getName(),

   693                             matchedNames.toString(),

   694                             processingResult);

   695                 }

   697                 if (processingResult) {

   698                     unmatchedAnnotations.keySet().removeAll(matchedNames);

   699                 }

   701             }

   702         }

   703         unmatchedAnnotations.remove("");

   705         if (lint && unmatchedAnnotations.size() > 0) {

   706             // Remove annotations processed by javac

   707             unmatchedAnnotations.keySet().removeAll(platformAnnotations);

   708             if (unmatchedAnnotations.size() > 0) {

   709                 log = Log.instance(context);

   710                 log.warning("proc.annotations.without.processors",

   711                             unmatchedAnnotations.keySet());

   712             }

   713         }

   715         // Run contributing processors that haven't run yet

   716         psi.runContributingProcs(renv);

   718         // Debugging

   719         if (options.isSet("displayFilerState"))

   720             filer.displayState();

   721     }

   723     /**

   724      * Computes the set of annotations on the symbol in question.

   725      * Leave class public for external testing purposes.

   726      */

   727     public static class ComputeAnnotationSet extends

   728         ElementScanner8<Set<TypeElement>, Set<TypeElement>> {

   729         final Elements elements;

   731         public ComputeAnnotationSet(Elements elements) {

   732             super();

   733             this.elements = elements;

   734         }

   736         @Override

   737         public Set<TypeElement> visitPackage(PackageElement e, Set<TypeElement> p) {

   738             // Don't scan enclosed elements of a package

   739             return p;

   740         }

   742         @Override

   743         public Set<TypeElement> scan(Element e, Set<TypeElement> p) {

   744             for (AnnotationMirror annotationMirror :

   745                      elements.getAllAnnotationMirrors(e) ) {

   746                 Element e2 = annotationMirror.getAnnotationType().asElement();

   747                 p.add((TypeElement) e2);

   748             }

   749             return super.scan(e, p);

   750         }

   751     }

   753     private boolean callProcessor(Processor proc,

   754                                          Set<? extends TypeElement> tes,

   755                                          RoundEnvironment renv) {

   756         try {

   757             return proc.process(tes, renv);

   758         } catch (BadClassFile ex) {

   759             log.error("proc.cant.access.1", ex.sym, ex.getDetailValue());

   760             return false;

   761         } catch (CompletionFailure ex) {

   762             StringWriter out = new StringWriter();

   763             ex.printStackTrace(new PrintWriter(out));

   764             log.error("proc.cant.access", ex.sym, ex.getDetailValue(), out.toString());

   765             return false;

   766         } catch (ClientCodeException e) {

   767             throw e;

   768         } catch (Throwable t) {

   769             throw new AnnotationProcessingError(t);

   770         }

   771     }

   773     /**

   774      * Helper object for a single round of annotation processing.

   775      */

   776     class Round {

   777         /** The round number. */

   778         final int number;

   779         /** The context for the round. */

   780         final Context context;

   781         /** The compiler for the round. */

   782         final JavaCompiler compiler;

   783         /** The log for the round. */

   784         final Log log;

   786         /** The ASTs to be compiled. */

   787         List<JCCompilationUnit> roots;

   788         /** The classes to be compiler that have were generated. */

   789         Map<String, JavaFileObject> genClassFiles;

   791         /** The set of annotations to be processed this round. */

   792         Set<TypeElement> annotationsPresent;

   793         /** The set of top level classes to be processed this round. */

   794         List<ClassSymbol> topLevelClasses;

   795         /** The set of package-info files to be processed this round. */

   796         List<PackageSymbol> packageInfoFiles;

   798         /** The number of Messager errors generated in this round. */

   799         int nMessagerErrors;

   801         /** Create a round (common code). */

   802         private Round(Context context, int number, int priorErrors, int priorWarnings) {

   803             this.context = context;

   804             this.number = number;

   806             compiler = JavaCompiler.instance(context);

   807             log = Log.instance(context);

   808             log.nerrors = priorErrors;

   809             log.nwarnings += priorWarnings;

   810             log.deferDiagnostics = true;

   812             // the following is for the benefit of JavacProcessingEnvironment.getContext()

   813             JavacProcessingEnvironment.this.context = context;

   815             // the following will be populated as needed

   816             topLevelClasses  = List.nil();

   817             packageInfoFiles = List.nil();

   818         }

   820         /** Create the first round. */

   821         Round(Context context, List<JCCompilationUnit> roots, List<ClassSymbol> classSymbols) {

   822             this(context, 1, 0, 0);

   823             this.roots = roots;

   824             genClassFiles = new HashMap<String,JavaFileObject>();

   826             compiler.todo.clear(); // free the compiler's resources

   828             // The reverse() in the following line is to maintain behavioural

   829             // compatibility with the previous revision of the code. Strictly speaking,

   830             // it should not be necessary, but a javah golden file test fails without it.

   831             topLevelClasses =

   832                 getTopLevelClasses(roots).prependList(classSymbols.reverse());

   834             packageInfoFiles = getPackageInfoFiles(roots);

   836             findAnnotationsPresent();

   837         }

   839         /** Create a new round. */

   840         private Round(Round prev,

   841                 Set<JavaFileObject> newSourceFiles, Map<String,JavaFileObject> newClassFiles) {

   842             this(prev.nextContext(),

   843                     prev.number+1,

   844                     prev.nMessagerErrors,

   845                     prev.compiler.log.nwarnings);

   846             this.genClassFiles = prev.genClassFiles;

   848             List<JCCompilationUnit> parsedFiles = compiler.parseFiles(newSourceFiles);

   849             roots = cleanTrees(prev.roots).appendList(parsedFiles);

   851             // Check for errors after parsing

   852             if (unrecoverableError())

   853                 return;

   855             enterClassFiles(genClassFiles);

   856             List<ClassSymbol> newClasses = enterClassFiles(newClassFiles);

   857             genClassFiles.putAll(newClassFiles);

   858             enterTrees(roots);

   860             if (unrecoverableError())

   861                 return;

   863             topLevelClasses = join(

   864                     getTopLevelClasses(parsedFiles),

   865                     getTopLevelClassesFromClasses(newClasses));

   867             packageInfoFiles = join(

   868                     getPackageInfoFiles(parsedFiles),

   869                     getPackageInfoFilesFromClasses(newClasses));

   871             findAnnotationsPresent();

   872         }

   874         /** Create the next round to be used. */

   875         Round next(Set<JavaFileObject> newSourceFiles, Map<String, JavaFileObject> newClassFiles) {

   876             try {

   877                 return new Round(this, newSourceFiles, newClassFiles);

   878             } finally {

   879                 compiler.close(false);

   880             }

   881         }

   883         /** Create the compiler to be used for the final compilation. */

   884         JavaCompiler finalCompiler(boolean errorStatus) {

   885             try {

   886                 JavaCompiler c = JavaCompiler.instance(nextContext());

   887                 c.log.nwarnings += compiler.log.nwarnings;

   888                 if (errorStatus) {

   889                     c.log.nerrors += compiler.log.nerrors;

   890                 }

   891                 return c;

   892             } finally {

   893                 compiler.close(false);

   894             }

   895         }

   897         /** Return the number of errors found so far in this round.

   898          * This may include uncoverable errors, such as parse errors,

   899          * and transient errors, such as missing symbols. */

   900         int errorCount() {

   901             return compiler.errorCount();

   902         }

   904         /** Return the number of warnings found so far in this round. */

   905         int warningCount() {

   906             return compiler.warningCount();

   907         }

   909         /** Return whether or not an unrecoverable error has occurred. */

   910         boolean unrecoverableError() {

   911             if (messager.errorRaised())

   912                 return true;

   914             for (JCDiagnostic d: log.deferredDiagnostics) {

   915                 switch (d.getKind()) {

   916                     case WARNING:

   917                         if (werror)

   918                             return true;

   919                         break;

   921                     case ERROR:

   922                         if (fatalErrors || !d.isFlagSet(RECOVERABLE))

   923                             return true;

   924                         break;

   925                 }

   926             }

   928             return false;

   929         }

   931         /** Find the set of annotations present in the set of top level

   932          *  classes and package info files to be processed this round. */

   933         void findAnnotationsPresent() {

   934             ComputeAnnotationSet annotationComputer = new ComputeAnnotationSet(elementUtils);

   935             // Use annotation processing to compute the set of annotations present

   936             annotationsPresent = new LinkedHashSet<TypeElement>();

   937             for (ClassSymbol classSym : topLevelClasses)

   938                 annotationComputer.scan(classSym, annotationsPresent);

   939             for (PackageSymbol pkgSym : packageInfoFiles)

   940                 annotationComputer.scan(pkgSym, annotationsPresent);

   941         }

   943         /** Enter a set of generated class files. */

   944         private List<ClassSymbol> enterClassFiles(Map<String, JavaFileObject> classFiles) {

   945             ClassReader reader = ClassReader.instance(context);

   946             Names names = Names.instance(context);

   947             List<ClassSymbol> list = List.nil();

   949             for (Map.Entry<String,JavaFileObject> entry : classFiles.entrySet()) {

   950                 Name name = names.fromString(entry.getKey());

   951                 JavaFileObject file = entry.getValue();

   952                 if (file.getKind() != JavaFileObject.Kind.CLASS)

   953                     throw new AssertionError(file);

   954                 ClassSymbol cs;

   955                 if (isPkgInfo(file, JavaFileObject.Kind.CLASS)) {

   956                     Name packageName = Convert.packagePart(name);

   957                     PackageSymbol p = reader.enterPackage(packageName);

   958                     if (p.package_info == null)

   959                         p.package_info = reader.enterClass(Convert.shortName(name), p);

   960                     cs = p.package_info;

   961                     if (cs.classfile == null)

   962                         cs.classfile = file;

   963                 } else

   964                     cs = reader.enterClass(name, file);

   965                 list = list.prepend(cs);

   966             }

   967             return list.reverse();

   968         }

   970         /** Enter a set of syntax trees. */

   971         private void enterTrees(List<JCCompilationUnit> roots) {

   972             compiler.enterTrees(roots);

   973         }

   975         /** Run a processing round. */

   976         void run(boolean lastRound, boolean errorStatus) {

   977             printRoundInfo(lastRound);

   979             TaskListener taskListener = context.get(TaskListener.class);

   980             if (taskListener != null)

   981                 taskListener.started(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));

   983             try {

   984                 if (lastRound) {

   985                     filer.setLastRound(true);

   986                     Set<Element> emptyRootElements = Collections.emptySet(); // immutable

   987                     RoundEnvironment renv = new JavacRoundEnvironment(true,

   988                             errorStatus,

   989                             emptyRootElements,

   990                             JavacProcessingEnvironment.this);

   991                     discoveredProcs.iterator().runContributingProcs(renv);

   992                 } else {

   993                     discoverAndRunProcs(context, annotationsPresent, topLevelClasses, packageInfoFiles);

   994                 }

   995             } finally {

   996                 if (taskListener != null)

   997                     taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));

   998             }

  1000             nMessagerErrors = messager.errorCount();

  1001         }

  1003         void showDiagnostics(boolean showAll) {

  1004             Set<JCDiagnostic.Kind> kinds = EnumSet.allOf(JCDiagnostic.Kind.class);

  1005             if (!showAll) {

  1006                 // suppress errors, which are all presumed to be transient resolve errors

  1007                 kinds.remove(JCDiagnostic.Kind.ERROR);

  1008             }

  1009             log.reportDeferredDiagnostics(kinds);

  1010         }

  1012         /** Print info about this round. */

  1013         private void printRoundInfo(boolean lastRound) {

  1014             if (printRounds || verbose) {

  1015                 List<ClassSymbol> tlc = lastRound ? List.<ClassSymbol>nil() : topLevelClasses;

  1016                 Set<TypeElement> ap = lastRound ? Collections.<TypeElement>emptySet() : annotationsPresent;

  1017                 log.printNoteLines("x.print.rounds",

  1018                         number,

  1019                         "{" + tlc.toString(", ") + "}",

  1020                         ap,

  1021                         lastRound);

  1022             }

  1023         }

  1025         /** Get the context for the next round of processing.

  1026          * Important values are propogated from round to round;

  1027          * other values are implicitly reset.

  1028          */

  1029         private Context nextContext() {

  1030             Context next = new Context(context);

  1032             Options options = Options.instance(context);

  1033             Assert.checkNonNull(options);

  1034             next.put(Options.optionsKey, options);

  1036             PrintWriter out = context.get(Log.outKey);

  1037             Assert.checkNonNull(out);

  1038             next.put(Log.outKey, out);

  1039             Locale locale = context.get(Locale.class);

  1040             if (locale != null)

  1041                 next.put(Locale.class, locale);

  1042             Assert.checkNonNull(messages);

  1043             next.put(JavacMessages.messagesKey, messages);

  1045             final boolean shareNames = true;

  1046             if (shareNames) {

  1047                 Names names = Names.instance(context);

  1048                 Assert.checkNonNull(names);

  1049                 next.put(Names.namesKey, names);

  1050             }

  1052             DiagnosticListener<?> dl = context.get(DiagnosticListener.class);

  1053             if (dl != null)

  1054                 next.put(DiagnosticListener.class, dl);

  1056             TaskListener tl = context.get(TaskListener.class);

  1057             if (tl != null)

  1058                 next.put(TaskListener.class, tl);

  1060             FSInfo fsInfo = context.get(FSInfo.class);

  1061             if (fsInfo != null)

  1062                 next.put(FSInfo.class, fsInfo);

  1064             JavaFileManager jfm = context.get(JavaFileManager.class);

  1065             Assert.checkNonNull(jfm);

  1066             next.put(JavaFileManager.class, jfm);

  1067             if (jfm instanceof JavacFileManager) {

  1068                 ((JavacFileManager)jfm).setContext(next);

  1069             }

  1071             Names names = Names.instance(context);

  1072             Assert.checkNonNull(names);

  1073             next.put(Names.namesKey, names);

  1075             Keywords keywords = Keywords.instance(context);

  1076             Assert.checkNonNull(keywords);

  1077             next.put(Keywords.keywordsKey, keywords);

  1079             JavaCompiler oldCompiler = JavaCompiler.instance(context);

  1080             JavaCompiler nextCompiler = JavaCompiler.instance(next);

  1081             nextCompiler.initRound(oldCompiler);

  1083             filer.newRound(next);

  1084             messager.newRound(next);

  1085             elementUtils.setContext(next);

  1086             typeUtils.setContext(next);

  1088             JavacTaskImpl task = context.get(JavacTaskImpl.class);

  1089             if (task != null) {

  1090                 next.put(JavacTaskImpl.class, task);

  1091                 task.updateContext(next);

  1092             }

  1094             JavacTrees trees = context.get(JavacTrees.class);

  1095             if (trees != null) {

  1096                 next.put(JavacTrees.class, trees);

  1097                 trees.updateContext(next);

  1098             }

  1100             context.clear();

  1101             return next;

  1102         }

  1103     }

  1106     // TODO: internal catch clauses?; catch and rethrow an annotation

  1107     // processing error

  1108     public JavaCompiler doProcessing(Context context,

  1109                                      List<JCCompilationUnit> roots,

  1110                                      List<ClassSymbol> classSymbols,

  1111                                      Iterable<? extends PackageSymbol> pckSymbols) {

  1113         TaskListener taskListener = context.get(TaskListener.class);

  1114         log = Log.instance(context);

  1116         Set<PackageSymbol> specifiedPackages = new LinkedHashSet<PackageSymbol>();

  1117         for (PackageSymbol psym : pckSymbols)

  1118             specifiedPackages.add(psym);

  1119         this.specifiedPackages = Collections.unmodifiableSet(specifiedPackages);

  1121         Round round = new Round(context, roots, classSymbols);

  1123         boolean errorStatus;

  1124         boolean moreToDo;

  1125         do {

  1126             // Run processors for round n

  1127             round.run(false, false);

  1129             // Processors for round n have run to completion.

  1130             // Check for errors and whether there is more work to do.

  1131             errorStatus = round.unrecoverableError();

  1132             moreToDo = moreToDo();

  1134             round.showDiagnostics(errorStatus || showResolveErrors);

  1136             // Set up next round.

  1137             // Copy mutable collections returned from filer.

  1138             round = round.next(

  1139                     new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects()),

  1140                     new LinkedHashMap<String,JavaFileObject>(filer.getGeneratedClasses()));

  1142              // Check for errors during setup.

  1143             if (round.unrecoverableError())

  1144                 errorStatus = true;

  1146         } while (moreToDo && !errorStatus);

  1148         // run last round

  1149         round.run(true, errorStatus);

  1150         round.showDiagnostics(true);

  1152         filer.warnIfUnclosedFiles();

  1153         warnIfUnmatchedOptions();

  1155         /*

  1156          * If an annotation processor raises an error in a round,

  1157          * that round runs to completion and one last round occurs.

  1158          * The last round may also occur because no more source or

  1159          * class files have been generated.  Therefore, if an error

  1160          * was raised on either of the last *two* rounds, the compile

  1161          * should exit with a nonzero exit code.  The current value of

  1162          * errorStatus holds whether or not an error was raised on the

  1163          * second to last round; errorRaised() gives the error status

  1164          * of the last round.

  1165          */

  1166         if (messager.errorRaised()

  1167                 || werror && round.warningCount() > 0 && round.errorCount() > 0)

  1168             errorStatus = true;

  1170         Set<JavaFileObject> newSourceFiles =

  1171                 new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects());

  1172         roots = cleanTrees(round.roots);

  1174         JavaCompiler compiler = round.finalCompiler(errorStatus);

  1176         if (newSourceFiles.size() > 0)

  1177             roots = roots.appendList(compiler.parseFiles(newSourceFiles));

  1179         errorStatus = errorStatus || (compiler.errorCount() > 0);

  1181         // Free resources

  1182         this.close();

  1184         if (taskListener != null)

  1185             taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING));

  1187         if (errorStatus) {

  1188             if (compiler.errorCount() == 0)

  1189                 compiler.log.nerrors++;

  1190             return compiler;

  1191         }

  1193         if (procOnly && !foundTypeProcessors) {

  1194             compiler.todo.clear();

  1195         } else {

  1196             if (procOnly && foundTypeProcessors)

  1197                 compiler.shouldStopPolicy = CompileState.FLOW;

  1199             compiler.enterTrees(roots);

  1200         }

  1202         return compiler;

  1203     }

  1205     private void warnIfUnmatchedOptions() {

  1206         if (!unmatchedProcessorOptions.isEmpty()) {

  1207             log.warning("proc.unmatched.processor.options", unmatchedProcessorOptions.toString());

  1208         }

  1209     }

  1211     /**

  1212      * Free resources related to annotation processing.

  1213      */

  1214     public void close() {

  1215         filer.close();

  1216         if (discoveredProcs != null) // Make calling close idempotent

  1217             discoveredProcs.close();

  1218         discoveredProcs = null;

  1219     }

  1221     private List<ClassSymbol> getTopLevelClasses(List<? extends JCCompilationUnit> units) {

  1222         List<ClassSymbol> classes = List.nil();

  1223         for (JCCompilationUnit unit : units) {

  1224             for (JCTree node : unit.defs) {

  1225                 if (node.getTag() == JCTree.CLASSDEF) {

  1226                     ClassSymbol sym = ((JCClassDecl) node).sym;

  1227                     Assert.checkNonNull(sym);

  1228                     classes = classes.prepend(sym);

  1229                 }

  1230             }

  1231         }

  1232         return classes.reverse();

  1233     }

  1235     private List<ClassSymbol> getTopLevelClassesFromClasses(List<? extends ClassSymbol> syms) {

  1236         List<ClassSymbol> classes = List.nil();

  1237         for (ClassSymbol sym : syms) {

  1238             if (!isPkgInfo(sym)) {

  1239                 classes = classes.prepend(sym);

  1240             }

  1241         }

  1242         return classes.reverse();

  1243     }

  1245     private List<PackageSymbol> getPackageInfoFiles(List<? extends JCCompilationUnit> units) {

  1246         List<PackageSymbol> packages = List.nil();

  1247         for (JCCompilationUnit unit : units) {

  1248             if (isPkgInfo(unit.sourcefile, JavaFileObject.Kind.SOURCE)) {

  1249                 packages = packages.prepend(unit.packge);

  1250             }

  1251         }

  1252         return packages.reverse();

  1253     }

  1255     private List<PackageSymbol> getPackageInfoFilesFromClasses(List<? extends ClassSymbol> syms) {

  1256         List<PackageSymbol> packages = List.nil();

  1257         for (ClassSymbol sym : syms) {

  1258             if (isPkgInfo(sym)) {

  1259                 packages = packages.prepend((PackageSymbol) sym.owner);

  1260             }

  1261         }

  1262         return packages.reverse();

  1263     }

  1265     // avoid unchecked warning from use of varargs

  1266     private static <T> List<T> join(List<T> list1, List<T> list2) {

  1267         return list1.appendList(list2);

  1268     }

  1270     private boolean isPkgInfo(JavaFileObject fo, JavaFileObject.Kind kind) {

  1271         return fo.isNameCompatible("package-info", kind);

  1272     }

  1274     private boolean isPkgInfo(ClassSymbol sym) {

  1275         return isPkgInfo(sym.classfile, JavaFileObject.Kind.CLASS) && (sym.packge().package_info == sym);

  1276     }

  1278     /*

  1279      * Called retroactively to determine if a class loader was required,

  1280      * after we have failed to create one.

  1281      */

  1282     private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {

  1283         if (procNames != null)

  1284             return true;

  1286         String procPath;

  1287         URL[] urls = new URL[1];

  1288         for(File pathElement : workingpath) {

  1289             try {

  1290                 urls[0] = pathElement.toURI().toURL();

  1291                 if (ServiceProxy.hasService(Processor.class, urls))

  1292                     return true;

  1293             } catch (MalformedURLException ex) {

  1294                 throw new AssertionError(ex);

  1295             }

  1296             catch (ServiceProxy.ServiceConfigurationError e) {

  1297                 log.error("proc.bad.config.file", e.getLocalizedMessage());

  1298                 return true;

  1299             }

  1300         }

  1302         return false;

  1303     }

  1305     private static <T extends JCTree> List<T> cleanTrees(List<T> nodes) {

  1306         for (T node : nodes)

  1307             treeCleaner.scan(node);

  1308         return nodes;

  1309     }

  1311     private static TreeScanner treeCleaner = new TreeScanner() {

  1312             public void scan(JCTree node) {

  1313                 super.scan(node);

  1314                 if (node != null)

  1315                     node.type = null;

  1316             }

  1317             public void visitTopLevel(JCCompilationUnit node) {

  1318                 node.packge = null;

  1319                 super.visitTopLevel(node);

  1320             }

  1321             public void visitClassDef(JCClassDecl node) {

  1322                 node.sym = null;

  1323                 super.visitClassDef(node);

  1324             }

  1325             public void visitMethodDef(JCMethodDecl node) {

  1326                 node.sym = null;

  1327                 super.visitMethodDef(node);

  1328             }

  1329             public void visitVarDef(JCVariableDecl node) {

  1330                 node.sym = null;

  1331                 super.visitVarDef(node);

  1332             }

  1333             public void visitNewClass(JCNewClass node) {

  1334                 node.constructor = null;

  1335                 super.visitNewClass(node);

  1336             }

  1337             public void visitAssignop(JCAssignOp node) {

  1338                 node.operator = null;

  1339                 super.visitAssignop(node);

  1340             }

  1341             public void visitUnary(JCUnary node) {

  1342                 node.operator = null;

  1343                 super.visitUnary(node);

  1344             }

  1345             public void visitBinary(JCBinary node) {

  1346                 node.operator = null;

  1347                 super.visitBinary(node);

  1348             }

  1349             public void visitSelect(JCFieldAccess node) {

  1350                 node.sym = null;

  1351                 super.visitSelect(node);

  1352             }

  1353             public void visitIdent(JCIdent node) {

  1354                 node.sym = null;

  1355                 super.visitIdent(node);

  1356             }

  1357         };

  1360     private boolean moreToDo() {

  1361         return filer.newFiles();

  1362     }

  1364     /**

  1365      * {@inheritdoc}

  1366      *

  1367      * Command line options suitable for presenting to annotation

  1368      * processors.  "-Afoo=bar" should be "-Afoo" => "bar".

  1369      */

  1370     public Map<String,String> getOptions() {

  1371         return processorOptions;

  1372     }

  1374     public Messager getMessager() {

  1375         return messager;

  1376     }

  1378     public Filer getFiler() {

  1379         return filer;

  1380     }

  1382     public JavacElements getElementUtils() {

  1383         return elementUtils;

  1384     }

  1386     public JavacTypes getTypeUtils() {

  1387         return typeUtils;

  1388     }

  1390     public SourceVersion getSourceVersion() {

  1391         return Source.toSourceVersion(source);

  1392     }

  1394     public Locale getLocale() {

  1395         return messages.getCurrentLocale();

  1396     }

  1398     public Set<Symbol.PackageSymbol> getSpecifiedPackages() {

  1399         return specifiedPackages;

  1400     }

  1402     private static final Pattern allMatches = Pattern.compile(".*");

  1403     public static final Pattern noMatches  = Pattern.compile("(\\P{all})+");

  1405     /**

  1406      * Convert import-style string for supported annotations into a

  1407      * regex matching that string.  If the string is a valid

  1408      * import-style string, return a regex that won't match anything.

  1409      */

  1410     private static Pattern importStringToPattern(String s, Processor p, Log log) {

  1411         if (isValidImportString(s)) {

  1412             return validImportStringToPattern(s);

  1413         } else {

  1414             log.warning("proc.malformed.supported.string", s, p.getClass().getName());

  1415             return noMatches; // won't match any valid identifier

  1416         }

  1417     }

  1419     /**

  1420      * Return true if the argument string is a valid import-style

  1421      * string specifying claimed annotations; return false otherwise.

  1422      */

  1423     public static boolean isValidImportString(String s) {

  1424         if (s.equals("*"))

  1425             return true;

  1427         boolean valid = true;

  1428         String t = s;

  1429         int index = t.indexOf('*');

  1431         if (index != -1) {

  1432             // '*' must be last character...

  1433             if (index == t.length() -1) {

  1434                 // ... any and preceding character must be '.'

  1435                 if ( index-1 >= 0 ) {

  1436                     valid = t.charAt(index-1) == '.';

  1437                     // Strip off ".*$" for identifier checks

  1438                     t = t.substring(0, t.length()-2);

  1439                 }

  1440             } else

  1441                 return false;

  1442         }

  1444         // Verify string is off the form (javaId \.)+ or javaId

  1445         if (valid) {

  1446             String[] javaIds = t.split("\\.", t.length()+2);

  1447             for(String javaId: javaIds)

  1448                 valid &= SourceVersion.isIdentifier(javaId);

  1449         }

  1450         return valid;

  1451     }

  1453     public static Pattern validImportStringToPattern(String s) {

  1454         if (s.equals("*")) {

  1455             return allMatches;

  1456         } else {

  1457             String s_prime = s.replace(".", "\\.");

  1459             if (s_prime.endsWith("*")) {

  1460                 s_prime =  s_prime.substring(0, s_prime.length() - 1) + ".+";

  1461             }

  1463             return Pattern.compile(s_prime);

  1464         }

  1465     }

  1467     /**

  1468      * For internal use only.  This method will be

  1469      * removed without warning.

  1470      */

  1471     public Context getContext() {

  1472         return context;

  1473     }

  1475     /**

  1476      * Internal use method to return the writer being used by the

  1477      * processing environment.

  1478      */

  1479     public PrintWriter getWriter() {

  1480         return context.get(Log.outKey);

  1481     }

  1483     public String toString() {

  1484         return "javac ProcessingEnvironment";

  1485     }

  1487     public static boolean isValidOptionName(String optionName) {

  1488         for(String s : optionName.split("\\.", -1)) {

  1489             if (!SourceVersion.isIdentifier(s))

  1490                 return false;

  1491         }

  1492         return true;

  1493     }

  1494 }

Mercurial > jdk8-mips64-public > langtools / file revision

src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@b0d5f00e69f7

src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java