jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@8f0dcb9499db

     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.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 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.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.Assert;

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

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

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

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

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

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

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

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

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

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

    81 import static javax.tools.StandardLocation.*;

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

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

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

    86 /**

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

    88  * annotation processing.

    89  *

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

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

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

    93  * deletion without notice.</b>

    94  */

    95 public class JavacProcessingEnvironment implements ProcessingEnvironment, Closeable {

    96     Options options;

    98     private final boolean printProcessorInfo;

    99     private final boolean printRounds;

   100     private final boolean verbose;

   101     private final boolean lint;

   102     private final boolean procOnly;

   103     private final boolean fatalErrors;

   104     private final boolean werror;

   105     private final boolean showResolveErrors;

   106     private boolean foundTypeProcessors;

   108     private final JavacFiler filer;

   109     private final JavacMessager messager;

   110     private final JavacElements elementUtils;

   111     private final JavacTypes typeUtils;

   113     /**

   114      * Holds relevant state history of which processors have been

   115      * used.

   116      */

   117     private DiscoveredProcessors discoveredProcs;

   119     /**

   120      * Map of processor-specific options.

   121      */

   122     private final Map<String, String> processorOptions;

   124     /**

   125      */

   126     private final Set<String> unmatchedProcessorOptions;

   128     /**

   129      * Annotations implicitly processed and claimed by javac.

   130      */

   131     private final Set<String> platformAnnotations;

   133     /**

   134      * Set of packages given on command line.

   135      */

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

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

   139      */

   140     Log log;

   142     /** Diagnostic factory.

   143      */

   144     JCDiagnostic.Factory diags;

   146     /**

   147      * Source level of the compile.

   148      */

   149     Source source;

   151     private ClassLoader processorClassLoader;

   153     /**

   154      * JavacMessages object used for localization

   155      */

   156     private JavacMessages messages;

   158     private Context context;

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

   161         this.context = context;

   162         log = Log.instance(context);

   163         source = Source.instance(context);

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

   165         options = Options.instance(context);

   166         printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);

   167         printRounds = options.isSet(XPRINTROUNDS);

   168         verbose = options.isSet(VERBOSE);

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

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

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

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

   173         werror = options.isSet(WERROR);

   174         platformAnnotations = initPlatformAnnotations();

   175         foundTypeProcessors = false;

   177         // Initialize services before any processors are initialized

   178         // in case processors use them.

   179         filer = new JavacFiler(context);

   180         messager = new JavacMessager(context, this);

   181         elementUtils = JavacElements.instance(context);

   182         typeUtils = JavacTypes.instance(context);

   183         processorOptions = initProcessorOptions(context);

   184         unmatchedProcessorOptions = initUnmatchedProcessorOptions();

   185         messages = JavacMessages.instance(context);

   186         initProcessorIterator(context, processors);

   187     }

   189     private Set<String> initPlatformAnnotations() {

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

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

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

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

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

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

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

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

   198         return Collections.unmodifiableSet(platformAnnotations);

   199     }

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

   202         Log   log   = Log.instance(context);

   203         Iterator<? extends Processor> processorIterator;

   205         if (options.isSet(XPRINT)) {

   206             try {

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

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

   209             } catch (Throwable t) {

   210                 AssertionError assertError =

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

   212                 assertError.initCause(t);

   213                 throw assertError;

   214             }

   215         } else if (processors != null) {

   216             processorIterator = processors.iterator();

   217         } else {

   218             String processorNames = options.get(PROCESSOR);

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

   220             try {

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

   222                 processorClassLoader = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)

   223                     ? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)

   224                     : fileManager.getClassLoader(CLASS_PATH);

   226                 /*

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

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

   229                  * provider mechanism to create the processor iterator.

   230                  */

   231                 if (processorNames != null) {

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

   233                 } else {

   234                     processorIterator = new ServiceIterator(processorClassLoader, log);

   235                 }

   236             } catch (SecurityException e) {

   237                 /*

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

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

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

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

   242                  */

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

   244             }

   245         }

   246         discoveredProcs = new DiscoveredProcessors(processorIterator);

   247     }

   249     /**

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

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

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

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

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

   255      * created.

   256      *

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

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

   259      */

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

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

   263         if (fileManager instanceof JavacFileManager) {

   264             StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;

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

   266                 ? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)

   267                 : standardFileManager.getLocation(CLASS_PATH);

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

   270                 handleException(key, e);

   272         } else {

   273             handleException(key, e);

   274         }

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

   277         return pl.iterator();

   278     }

   280     /**

   281      * Handle a security exception thrown during initializing the

   282      * Processor iterator.

   283      */

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

   285         if (e != null) {

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

   287             throw new Abort(e);

   288         } else {

   289             log.error(key);

   290             throw new Abort();

   291         }

   292     }

   294     /**

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

   296      * iterator over annotations processors.  If

   297      * java.util.ServiceLoader is present use it, otherwise, use

   298      * sun.misc.Service, otherwise fail if a loader is needed.

   299      */

   300     private class ServiceIterator implements Iterator<Processor> {

   301         // The to-be-wrapped iterator.

   302         private Iterator<?> iterator;

   303         private Log log;

   304         private Class<?> loaderClass;

   305         private boolean jusl;

   306         private Object loader;

   308         ServiceIterator(ClassLoader classLoader, Log log) {

   309             String loadMethodName;

   311             this.log = log;

   312             try {

   313                 try {

   314                     loaderClass = Class.forName("java.util.ServiceLoader");

   315                     loadMethodName = "load";

   316                     jusl = true;

   317                 } catch (ClassNotFoundException cnfe) {

   318                     try {

   319                         loaderClass = Class.forName("sun.misc.Service");

   320                         loadMethodName = "providers";

   321                         jusl = false;

   322                     } catch (ClassNotFoundException cnfe2) {

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

   324                         this.iterator = handleServiceLoaderUnavailability("proc.no.service",

   325                                                                           null);

   326                         return;

   327                     }

   328                 }

   330                 // java.util.ServiceLoader.load or sun.misc.Service.providers

   331                 Method loadMethod = loaderClass.getMethod(loadMethodName,

   332                                                           Class.class,

   333                                                           ClassLoader.class);

   335                 Object result = loadMethod.invoke(null,

   336                                                   Processor.class,

   337                                                   classLoader);

   339                 // For java.util.ServiceLoader, we have to call another

   340                 // method to get the iterator.

   341                 if (jusl) {

   342                     loader = result; // Store ServiceLoader to call reload later

   343                     Method m = loaderClass.getMethod("iterator");

   344                     result = m.invoke(result); // serviceLoader.iterator();

   345                 }

   347                 // The result should now be an iterator.

   348                 this.iterator = (Iterator<?>) result;

   349             } catch (Throwable t) {

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

   351                 throw new Abort(t);

   352             }

   353         }

   355         public boolean hasNext() {

   356             try {

   357                 return iterator.hasNext();

   358             } catch (Throwable t) {

   359                 if ("ServiceConfigurationError".

   360                     equals(t.getClass().getSimpleName())) {

   361                     log.error("proc.bad.config.file", t.getLocalizedMessage());

   362                 }

   363                 throw new Abort(t);

   364             }

   365         }

   367         public Processor next() {

   368             try {

   369                 return (Processor)(iterator.next());

   370             } catch (Throwable t) {

   371                 if ("ServiceConfigurationError".

   372                     equals(t.getClass().getSimpleName())) {

   373                     log.error("proc.bad.config.file", t.getLocalizedMessage());

   374                 } else {

   375                     log.error("proc.processor.constructor.error", t.getLocalizedMessage());

   376                 }

   377                 throw new Abort(t);

   378             }

   379         }

   381         public void remove() {

   382             throw new UnsupportedOperationException();

   383         }

   385         public void close() {

   386             if (jusl) {

   387                 try {

   388                     // Call java.util.ServiceLoader.reload

   389                     Method reloadMethod = loaderClass.getMethod("reload");

   390                     reloadMethod.invoke(loader);

   391                 } catch(Exception e) {

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

   393                 }

   394             }

   395         }

   396     }

   399     private static class NameProcessIterator implements Iterator<Processor> {

   400         Processor nextProc = null;

   401         Iterator<String> names;

   402         ClassLoader processorCL;

   403         Log log;

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

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

   407             this.processorCL = processorCL;

   408             this.log = log;

   409         }

   411         public boolean hasNext() {

   412             if (nextProc != null)

   413                 return true;

   414             else {

   415                 if (!names.hasNext())

   416                     return false;

   417                 else {

   418                     String processorName = names.next();

   420                     Processor processor;

   421                     try {

   422                         try {

   423                             processor =

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

   425                         } catch (ClassNotFoundException cnfe) {

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

   427                             return false;

   428                         } catch (ClassCastException cce) {

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

   430                             return false;

   431                         } catch (Exception e ) {

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

   433                             return false;

   434                         }

   435                     } catch(Throwable t) {

   436                         throw new AnnotationProcessingError(t);

   437                     }

   438                     nextProc = processor;

   439                     return true;

   440                 }

   442             }

   443         }

   445         public Processor next() {

   446             if (hasNext()) {

   447                 Processor p = nextProc;

   448                 nextProc = null;

   449                 return p;

   450             } else

   451                 throw new NoSuchElementException();

   452         }

   454         public void remove () {

   455             throw new UnsupportedOperationException();

   456         }

   457     }

   459     public boolean atLeastOneProcessor() {

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

   461     }

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

   464         Options options = Options.instance(context);

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

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

   468         for(String key : keySet) {

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

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

   471                 String candidateKey = null;

   472                 String candidateValue = null;

   474                 if (sepIndex == -1)

   475                     candidateKey = key.substring(2);

   476                 else if (sepIndex >= 3) {

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

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

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

   480                 }

   481                 tempOptions.put(candidateKey, candidateValue);

   482             }

   483         }

   485         return Collections.unmodifiableMap(tempOptions);

   486     }

   488     private Set<String> initUnmatchedProcessorOptions() {

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

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

   491         return unmatchedProcessorOptions;

   492     }

   494     /**

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

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

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

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

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

   500      * only) getSupportedAnnotationTypes call to the processor.

   501      */

   502     static class ProcessorState {

   503         public Processor processor;

   504         public boolean   contributed;

   505         private ArrayList<Pattern> supportedAnnotationPatterns;

   506         private ArrayList<String>  supportedOptionNames;

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

   509             processor = p;

   510             contributed = false;

   512             try {

   513                 processor.init(env);

   515                 checkSourceVersionCompatibility(source, log);

   517                 supportedAnnotationPatterns = new ArrayList<Pattern>();

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

   519                     supportedAnnotationPatterns.add(importStringToPattern(importString,

   520                                                                           processor,

   521                                                                           log));

   522                 }

   524                 supportedOptionNames = new ArrayList<String>();

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

   526                     if (checkOptionName(optionName, log))

   527                         supportedOptionNames.add(optionName);

   528                 }

   530             } catch (Throwable t) {

   531                 throw new AnnotationProcessingError(t);

   532             }

   533         }

   535         /**

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

   537          * compatible with the compilation source version.  The

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

   539          * equal to the source version of the compile.

   540          */

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

   542             SourceVersion procSourceVersion = processor.getSupportedSourceVersion();

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

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

   546                             procSourceVersion,

   547                             processor.getClass().getName(),

   548                             source.name);

   549             }

   550         }

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

   553             boolean valid = isValidOptionName(optionName);

   554             if (!valid)

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

   556                             optionName,

   557                             processor.getClass().getName());

   558             return valid;

   559         }

   561         public boolean annotationSupported(String annotationName) {

   562             for(Pattern p: supportedAnnotationPatterns) {

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

   564                     return true;

   565             }

   566             return false;

   567         }

   569         /**

   570          * Remove options that are matched by this processor.

   571          */

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

   573             unmatchedProcessorOptions.removeAll(supportedOptionNames);

   574         }

   575     }

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

   578     /**

   579      * This class holds information about the processors that have

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

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

   582      * annotation processing.  The iterator first visits already

   583      * discovered processors then fails over to the service provider

   584      * mechanism if additional queries are made.

   585      */

   586     class DiscoveredProcessors implements Iterable<ProcessorState> {

   588         class ProcessorStateIterator implements Iterator<ProcessorState> {

   589             DiscoveredProcessors psi;

   590             Iterator<ProcessorState> innerIter;

   591             boolean onProcInterator;

   593             ProcessorStateIterator(DiscoveredProcessors psi) {

   594                 this.psi = psi;

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

   596                 this.onProcInterator = false;

   597             }

   599             public ProcessorState next() {

   600                 if (!onProcInterator) {

   601                     if (innerIter.hasNext())

   602                         return innerIter.next();

   603                     else

   604                         onProcInterator = true;

   605                 }

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

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

   609                                                            log, source, JavacProcessingEnvironment.this);

   610                     psi.procStateList.add(ps);

   611                     return ps;

   612                 } else

   613                     throw new NoSuchElementException();

   614             }

   616             public boolean hasNext() {

   617                 if (onProcInterator)

   618                     return  psi.processorIterator.hasNext();

   619                 else

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

   621             }

   623             public void remove () {

   624                 throw new UnsupportedOperationException();

   625             }

   627             /**

   628              * Run all remaining processors on the procStateList that

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

   630              * annotations.

   631              */

   632             public void runContributingProcs(RoundEnvironment re) {

   633                 if (!onProcInterator) {

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

   635                     while(innerIter.hasNext()) {

   636                         ProcessorState ps = innerIter.next();

   637                         if (ps.contributed)

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

   639                     }

   640                 }

   641             }

   642         }

   644         Iterator<? extends Processor> processorIterator;

   645         ArrayList<ProcessorState>  procStateList;

   647         public ProcessorStateIterator iterator() {

   648             return new ProcessorStateIterator(this);

   649         }

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

   652             this.processorIterator = processorIterator;

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

   654         }

   656         /**

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

   658          */

   659         public void close() {

   660             if (processorIterator != null &&

   661                 processorIterator instanceof ServiceIterator) {

   662                 ((ServiceIterator) processorIterator).close();

   663             }

   664         }

   665     }

   667     private void discoverAndRunProcs(Context context,

   668                                      Set<TypeElement> annotationsPresent,

   669                                      List<ClassSymbol> topLevelClasses,

   670                                      List<PackageSymbol> packageInfoFiles) {

   671         Map<String, TypeElement> unmatchedAnnotations =

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

   674         for(TypeElement a  : annotationsPresent) {

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

   676                                          a);

   677         }

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

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

   681             unmatchedAnnotations.put("", null);

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

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

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

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

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

   688         // are not doing processing in that case.

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

   691         rootElements.addAll(topLevelClasses);

   692         rootElements.addAll(packageInfoFiles);

   693         rootElements = Collections.unmodifiableSet(rootElements);

   695         RoundEnvironment renv = new JavacRoundEnvironment(false,

   696                                                           false,

   697                                                           rootElements,

   698                                                           JavacProcessingEnvironment.this);

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

   701             ProcessorState ps = psi.next();

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

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

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

   706                 String unmatchedAnnotationName = entry.getKey();

   707                 if (ps.annotationSupported(unmatchedAnnotationName) ) {

   708                     matchedNames.add(unmatchedAnnotationName);

   709                     TypeElement te = entry.getValue();

   710                     if (te != null)

   711                         typeElements.add(te);

   712                 }

   713             }

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

   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(context);

  1050             Options options = Options.instance(context);

  1051             Assert.checkNonNull(options);

  1052             next.put(Options.optionsKey, options);

  1054             PrintWriter out = context.get(Log.outKey);

  1055             Assert.checkNonNull(out);

  1056             next.put(Log.outKey, out);

  1058             final boolean shareNames = true;

  1059             if (shareNames) {

  1060                 Names names = Names.instance(context);

  1061                 Assert.checkNonNull(names);

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

  1074             if (fsInfo != null)

  1075                 next.put(FSInfo.class, fsInfo);

  1077             JavaFileManager jfm = context.get(JavaFileManager.class);

  1078             Assert.checkNonNull(jfm);

  1079             next.put(JavaFileManager.class, jfm);

  1080             if (jfm instanceof JavacFileManager) {

  1081                 ((JavacFileManager)jfm).setContext(next);

  1082             }

  1084             Names names = Names.instance(context);

  1085             Assert.checkNonNull(names);

  1086             next.put(Names.namesKey, names);

  1088             Keywords keywords = Keywords.instance(context);

  1089             Assert.checkNonNull(keywords);

  1090             next.put(Keywords.keywordsKey, keywords);

  1092             JavaCompiler oldCompiler = JavaCompiler.instance(context);

  1093             JavaCompiler nextCompiler = JavaCompiler.instance(next);

  1094             nextCompiler.initRound(oldCompiler);

  1096             filer.newRound(next);

  1097             messager.newRound(next);

  1098             elementUtils.setContext(next);

  1099             typeUtils.setContext(next);

  1101             JavacTaskImpl task = context.get(JavacTaskImpl.class);

  1102             if (task != null) {

  1103                 next.put(JavacTaskImpl.class, task);

  1104                 task.updateContext(next);

  1105             }

  1107             JavacTrees trees = context.get(JavacTrees.class);

  1108             if (trees != null) {

  1109                 next.put(JavacTrees.class, trees);

  1110                 trees.updateContext(next);

  1111             }

  1113             context.clear();

  1114             return next;

  1115         }

  1116     }

  1119     // TODO: internal catch clauses?; catch and rethrow an annotation

  1120     // processing error

  1121     public JavaCompiler doProcessing(Context context,

  1122                                      List<JCCompilationUnit> roots,

  1123                                      List<ClassSymbol> classSymbols,

  1124                                      Iterable<? extends PackageSymbol> pckSymbols) {

  1126         TaskListener taskListener = context.get(TaskListener.class);

  1127         log = Log.instance(context);

  1129         Set<PackageSymbol> specifiedPackages = new LinkedHashSet<PackageSymbol>();

  1130         for (PackageSymbol psym : pckSymbols)

  1131             specifiedPackages.add(psym);

  1132         this.specifiedPackages = Collections.unmodifiableSet(specifiedPackages);

  1134         Round round = new Round(context, roots, classSymbols);

  1136         boolean errorStatus;

  1137         boolean moreToDo;

  1138         do {

  1139             // Run processors for round n

  1140             round.run(false, false);

  1142             // Processors for round n have run to completion.

  1143             // Check for errors and whether there is more work to do.

  1144             errorStatus = round.unrecoverableError();

  1145             moreToDo = moreToDo();

  1147             round.showDiagnostics(errorStatus || showResolveErrors);

  1149             // Set up next round.

  1150             // Copy mutable collections returned from filer.

  1151             round = round.next(

  1152                     new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects()),

  1153                     new LinkedHashMap<String,JavaFileObject>(filer.getGeneratedClasses()));

  1155              // Check for errors during setup.

  1156             if (round.unrecoverableError())

  1157                 errorStatus = true;

  1159         } while (moreToDo && !errorStatus);

  1161         // run last round

  1162         round.run(true, errorStatus);

  1163         round.showDiagnostics(true);

  1165         filer.warnIfUnclosedFiles();

  1166         warnIfUnmatchedOptions();

  1168         /*

  1169          * If an annotation processor raises an error in a round,

  1170          * that round runs to completion and one last round occurs.

  1171          * The last round may also occur because no more source or

  1172          * class files have been generated.  Therefore, if an error

  1173          * was raised on either of the last *two* rounds, the compile

  1174          * should exit with a nonzero exit code.  The current value of

  1175          * errorStatus holds whether or not an error was raised on the

  1176          * second to last round; errorRaised() gives the error status

  1177          * of the last round.

  1178          */

  1179         if (messager.errorRaised()

  1180                 || werror && round.warningCount() > 0 && round.errorCount() > 0)

  1181             errorStatus = true;

  1183         Set<JavaFileObject> newSourceFiles =

  1184                 new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects());

  1185         roots = cleanTrees(round.roots);

  1187         JavaCompiler compiler = round.finalCompiler(errorStatus);

  1189         if (newSourceFiles.size() > 0)

  1190             roots = roots.appendList(compiler.parseFiles(newSourceFiles));

  1192         errorStatus = errorStatus || (compiler.errorCount() > 0);

  1194         // Free resources

  1195         this.close();

  1197         if (taskListener != null)

  1198             taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING));

  1200         if (errorStatus) {

  1201             if (compiler.errorCount() == 0)

  1202                 compiler.log.nerrors++;

  1203             return compiler;

  1204         }

  1206         if (procOnly && !foundTypeProcessors) {

  1207             compiler.todo.clear();

  1208         } else {

  1209             if (procOnly && foundTypeProcessors)

  1210                 compiler.shouldStopPolicy = CompileState.FLOW;

  1212             compiler.enterTrees(roots);

  1213         }

  1215         return compiler;

  1216     }

  1218     private void warnIfUnmatchedOptions() {

  1219         if (!unmatchedProcessorOptions.isEmpty()) {

  1220             log.warning("proc.unmatched.processor.options", unmatchedProcessorOptions.toString());

  1221         }

  1222     }

  1224     /**

  1225      * Free resources related to annotation processing.

  1226      */

  1227     public void close() {

  1228         filer.close();

  1229         if (discoveredProcs != null) // Make calling close idempotent

  1230             discoveredProcs.close();

  1231         discoveredProcs = null;

  1232         if (processorClassLoader != null && processorClassLoader instanceof Closeable) {

  1233             try {

  1234                 ((Closeable) processorClassLoader).close();

  1235             } catch (IOException e) {

  1236                 JCDiagnostic msg = diags.fragment("fatal.err.cant.close.loader");

  1237                 throw new FatalError(msg, e);

  1238             }

  1239         }

  1240     }

  1242     private List<ClassSymbol> getTopLevelClasses(List<? extends JCCompilationUnit> units) {

  1243         List<ClassSymbol> classes = List.nil();

  1244         for (JCCompilationUnit unit : units) {

  1245             for (JCTree node : unit.defs) {

  1246                 if (node.getTag() == JCTree.CLASSDEF) {

  1247                     ClassSymbol sym = ((JCClassDecl) node).sym;

  1248                     Assert.checkNonNull(sym);

  1249                     classes = classes.prepend(sym);

  1250                 }

  1251             }

  1252         }

  1253         return classes.reverse();

  1254     }

  1256     private List<ClassSymbol> getTopLevelClassesFromClasses(List<? extends ClassSymbol> syms) {

  1257         List<ClassSymbol> classes = List.nil();

  1258         for (ClassSymbol sym : syms) {

  1259             if (!isPkgInfo(sym)) {

  1260                 classes = classes.prepend(sym);

  1261             }

  1262         }

  1263         return classes.reverse();

  1264     }

  1266     private List<PackageSymbol> getPackageInfoFiles(List<? extends JCCompilationUnit> units) {

  1267         List<PackageSymbol> packages = List.nil();

  1268         for (JCCompilationUnit unit : units) {

  1269             if (isPkgInfo(unit.sourcefile, JavaFileObject.Kind.SOURCE)) {

  1270                 packages = packages.prepend(unit.packge);

  1271             }

  1272         }

  1273         return packages.reverse();

  1274     }

  1276     private List<PackageSymbol> getPackageInfoFilesFromClasses(List<? extends ClassSymbol> syms) {

  1277         List<PackageSymbol> packages = List.nil();

  1278         for (ClassSymbol sym : syms) {

  1279             if (isPkgInfo(sym)) {

  1280                 packages = packages.prepend((PackageSymbol) sym.owner);

  1281             }

  1282         }

  1283         return packages.reverse();

  1284     }

  1286     // avoid unchecked warning from use of varargs

  1287     private static <T> List<T> join(List<T> list1, List<T> list2) {

  1288         return list1.appendList(list2);

  1289     }

  1291     private boolean isPkgInfo(JavaFileObject fo, JavaFileObject.Kind kind) {

  1292         return fo.isNameCompatible("package-info", kind);

  1293     }

  1295     private boolean isPkgInfo(ClassSymbol sym) {

  1296         return isPkgInfo(sym.classfile, JavaFileObject.Kind.CLASS) && (sym.packge().package_info == sym);

  1297     }

  1299     /*

  1300      * Called retroactively to determine if a class loader was required,

  1301      * after we have failed to create one.

  1302      */

  1303     private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {

  1304         if (procNames != null)

  1305             return true;

  1307         String procPath;

  1308         URL[] urls = new URL[1];

  1309         for(File pathElement : workingpath) {

  1310             try {

  1311                 urls[0] = pathElement.toURI().toURL();

  1312                 if (ServiceProxy.hasService(Processor.class, urls))

  1313                     return true;

  1314             } catch (MalformedURLException ex) {

  1315                 throw new AssertionError(ex);

  1316             }

  1317             catch (ServiceProxy.ServiceConfigurationError e) {

  1318                 log.error("proc.bad.config.file", e.getLocalizedMessage());

  1319                 return true;

  1320             }

  1321         }

  1323         return false;

  1324     }

  1326     private static <T extends JCTree> List<T> cleanTrees(List<T> nodes) {

  1327         for (T node : nodes)

  1328             treeCleaner.scan(node);

  1329         return nodes;

  1330     }

  1332     private static TreeScanner treeCleaner = new TreeScanner() {

  1333             public void scan(JCTree node) {

  1334                 super.scan(node);

  1335                 if (node != null)

  1336                     node.type = null;

  1337             }

  1338             public void visitTopLevel(JCCompilationUnit node) {

  1339                 node.packge = null;

  1340                 super.visitTopLevel(node);

  1341             }

  1342             public void visitClassDef(JCClassDecl node) {

  1343                 node.sym = null;

  1344                 super.visitClassDef(node);

  1345             }

  1346             public void visitMethodDef(JCMethodDecl node) {

  1347                 node.sym = null;

  1348                 super.visitMethodDef(node);

  1349             }

  1350             public void visitVarDef(JCVariableDecl node) {

  1351                 node.sym = null;

  1352                 super.visitVarDef(node);

  1353             }

  1354             public void visitNewClass(JCNewClass node) {

  1355                 node.constructor = null;

  1356                 super.visitNewClass(node);

  1357             }

  1358             public void visitAssignop(JCAssignOp node) {

  1359                 node.operator = null;

  1360                 super.visitAssignop(node);

  1361             }

  1362             public void visitUnary(JCUnary node) {

  1363                 node.operator = null;

  1364                 super.visitUnary(node);

  1365             }

  1366             public void visitBinary(JCBinary node) {

  1367                 node.operator = null;

  1368                 super.visitBinary(node);

  1369             }

  1370             public void visitSelect(JCFieldAccess node) {

  1371                 node.sym = null;

  1372                 super.visitSelect(node);

  1373             }

  1374             public void visitIdent(JCIdent node) {

  1375                 node.sym = null;

  1376                 super.visitIdent(node);

  1377             }

  1378         };

  1381     private boolean moreToDo() {

  1382         return filer.newFiles();

  1383     }

  1385     /**

  1386      * {@inheritdoc}

  1387      *

  1388      * Command line options suitable for presenting to annotation

  1389      * processors.  "-Afoo=bar" should be "-Afoo" => "bar".

  1390      */

  1391     public Map<String,String> getOptions() {

  1392         return processorOptions;

  1393     }

  1395     public Messager getMessager() {

  1396         return messager;

  1397     }

  1399     public Filer getFiler() {

  1400         return filer;

  1401     }

  1403     public JavacElements getElementUtils() {

  1404         return elementUtils;

  1405     }

  1407     public JavacTypes getTypeUtils() {

  1408         return typeUtils;

  1409     }

  1411     public SourceVersion getSourceVersion() {

  1412         return Source.toSourceVersion(source);

  1413     }

  1415     public Locale getLocale() {

  1416         return messages.getCurrentLocale();

  1417     }

  1419     public Set<Symbol.PackageSymbol> getSpecifiedPackages() {

  1420         return specifiedPackages;

  1421     }

  1423     private static final Pattern allMatches = Pattern.compile(".*");

  1424     public static final Pattern noMatches  = Pattern.compile("(\\P{all})+");

  1426     /**

  1427      * Convert import-style string for supported annotations into a

  1428      * regex matching that string.  If the string is a valid

  1429      * import-style string, return a regex that won't match anything.

  1430      */

  1431     private static Pattern importStringToPattern(String s, Processor p, Log log) {

  1432         if (isValidImportString(s)) {

  1433             return validImportStringToPattern(s);

  1434         } else {

  1435             log.warning("proc.malformed.supported.string", s, p.getClass().getName());

  1436             return noMatches; // won't match any valid identifier

  1437         }

  1438     }

  1440     /**

  1441      * Return true if the argument string is a valid import-style

  1442      * string specifying claimed annotations; return false otherwise.

  1443      */

  1444     public static boolean isValidImportString(String s) {

  1445         if (s.equals("*"))

  1446             return true;

  1448         boolean valid = true;

  1449         String t = s;

  1450         int index = t.indexOf('*');

  1452         if (index != -1) {

  1453             // '*' must be last character...

  1454             if (index == t.length() -1) {

  1455                 // ... any and preceding character must be '.'

  1456                 if ( index-1 >= 0 ) {

  1457                     valid = t.charAt(index-1) == '.';

  1458                     // Strip off ".*$" for identifier checks

  1459                     t = t.substring(0, t.length()-2);

  1460                 }

  1461             } else

  1462                 return false;

  1463         }

  1465         // Verify string is off the form (javaId \.)+ or javaId

  1466         if (valid) {

  1467             String[] javaIds = t.split("\\.", t.length()+2);

  1468             for(String javaId: javaIds)

  1469                 valid &= SourceVersion.isIdentifier(javaId);

  1470         }

  1471         return valid;

  1472     }

  1474     public static Pattern validImportStringToPattern(String s) {

  1475         if (s.equals("*")) {

  1476             return allMatches;

  1477         } else {

  1478             String s_prime = s.replace(".", "\\.");

  1480             if (s_prime.endsWith("*")) {

  1481                 s_prime =  s_prime.substring(0, s_prime.length() - 1) + ".+";

  1482             }

  1484             return Pattern.compile(s_prime);

  1485         }

  1486     }

  1488     /**

  1489      * For internal use only.  This method will be

  1490      * removed without warning.

  1491      */

  1492     public Context getContext() {

  1493         return context;

  1494     }

  1496     public String toString() {

  1497         return "javac ProcessingEnvironment";

  1498     }

  1500     public static boolean isValidOptionName(String optionName) {

  1501         for(String s : optionName.split("\\.", -1)) {

  1502             if (!SourceVersion.isIdentifier(s))

  1503                 return false;

  1504         }

  1505         return true;

  1506     }

  1507 }

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

src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@8f0dcb9499db

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