jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@4851ff2ffc10

     1 /*

     2  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.tools.javac.processing;

    28 import java.lang.reflect.*;

    29 import java.util.*;

    30 import java.util.regex.*;

    32 import java.net.URL;

    33 import java.io.Closeable;

    34 import java.io.File;

    35 import java.io.PrintWriter;

    36 import java.io.IOException;

    37 import java.net.MalformedURLException;

    38 import java.io.StringWriter;

    40 import javax.annotation.processing.*;

    41 import javax.lang.model.SourceVersion;

    42 import javax.lang.model.element.AnnotationMirror;

    43 import javax.lang.model.element.Element;

    44 import javax.lang.model.element.TypeElement;

    45 import javax.lang.model.element.PackageElement;

    46 import javax.lang.model.util.*;

    47 import javax.tools.JavaFileManager;

    48 import javax.tools.StandardJavaFileManager;

    49 import javax.tools.JavaFileObject;

    50 import javax.tools.DiagnosticListener;

    52 //308 import com.sun.source.util.AbstractTypeProcessor;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    80 import static javax.tools.StandardLocation.*;

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

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

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

    85 /**

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

    87  * annotation processing.

    88  *

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

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

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

    92  * deletion without notice.</b>

    93  */

    94 public class JavacProcessingEnvironment implements ProcessingEnvironment, Closeable {

    95     Options options;

    97     private final boolean printProcessorInfo;

    98     private final boolean printRounds;

    99     private final boolean verbose;

   100     private final boolean lint;

   101     private final boolean procOnly;

   102     private final boolean fatalErrors;

   103     private final boolean werror;

   104     private final boolean showResolveErrors;

   105     private boolean foundTypeProcessors;

   107     private final JavacFiler filer;

   108     private final JavacMessager messager;

   109     private final JavacElements elementUtils;

   110     private final JavacTypes typeUtils;

   112     /**

   113      * Holds relevant state history of which processors have been

   114      * used.

   115      */

   116     private DiscoveredProcessors discoveredProcs;

   118     /**

   119      * Map of processor-specific options.

   120      */

   121     private final Map<String, String> processorOptions;

   123     /**

   124      */

   125     private final Set<String> unmatchedProcessorOptions;

   127     /**

   128      * Annotations implicitly processed and claimed by javac.

   129      */

   130     private final Set<String> platformAnnotations;

   132     /**

   133      * Set of packages given on command line.

   134      */

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

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

   138      */

   139     Log log;

   141     /** Diagnostic factory.

   142      */

   143     JCDiagnostic.Factory diags;

   145     /**

   146      * Source level of the compile.

   147      */

   148     Source source;

   150     private ClassLoader processorClassLoader;

   152     /**

   153      * JavacMessages object used for localization

   154      */

   155     private JavacMessages messages;

   157     private Context context;

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

   160         this.context = context;

   161         log = Log.instance(context);

   162         source = Source.instance(context);

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

   164         options = Options.instance(context);

   165         printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);

   166         printRounds = options.isSet(XPRINTROUNDS);

   167         verbose = options.isSet(VERBOSE);

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

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

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

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

   172         werror = options.isSet(WERROR);

   173         platformAnnotations = initPlatformAnnotations();

   174         foundTypeProcessors = false;

   176         // Initialize services before any processors are initialized

   177         // in case processors use them.

   178         filer = new JavacFiler(context);

   179         messager = new JavacMessager(context, this);

   180         elementUtils = JavacElements.instance(context);

   181         typeUtils = JavacTypes.instance(context);

   182         processorOptions = initProcessorOptions(context);

   183         unmatchedProcessorOptions = initUnmatchedProcessorOptions();

   184         messages = JavacMessages.instance(context);

   185         initProcessorIterator(context, processors);

   186     }

   188     private Set<String> initPlatformAnnotations() {

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

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

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

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

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

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

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

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

   197         return Collections.unmodifiableSet(platformAnnotations);

   198     }

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

   201         Log   log   = Log.instance(context);

   202         Iterator<? extends Processor> processorIterator;

   204         if (options.isSet(XPRINT)) {

   205             try {

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

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

   208             } catch (Throwable t) {

   209                 AssertionError assertError =

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

   211                 assertError.initCause(t);

   212                 throw assertError;

   213             }

   214         } else if (processors != null) {

   215             processorIterator = processors.iterator();

   216         } else {

   217             String processorNames = options.get(PROCESSOR);

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

   219             try {

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

   221                 processorClassLoader = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)

   222                     ? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)

   223                     : fileManager.getClassLoader(CLASS_PATH);

   225                 /*

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

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

   228                  * provider mechanism to create the processor iterator.

   229                  */

   230                 if (processorNames != null) {

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

   232                 } else {

   233                     processorIterator = new ServiceIterator(processorClassLoader, log);

   234                 }

   235             } catch (SecurityException e) {

   236                 /*

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

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

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

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

   241                  */

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

   243             }

   244         }

   245         discoveredProcs = new DiscoveredProcessors(processorIterator);

   246     }

   248     /**

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

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

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

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

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

   254      * created.

   255      *

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

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

   258      */

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

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

   262         if (fileManager instanceof JavacFileManager) {

   263             StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;

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

   265                 ? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)

   266                 : standardFileManager.getLocation(CLASS_PATH);

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

   269                 handleException(key, e);

   271         } else {

   272             handleException(key, e);

   273         }

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

   276         return pl.iterator();

   277     }

   279     /**

   280      * Handle a security exception thrown during initializing the

   281      * Processor iterator.

   282      */

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

   284         if (e != null) {

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

   286             throw new Abort(e);

   287         } else {

   288             log.error(key);

   289             throw new Abort();

   290         }

   291     }

   293     /**

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

   295      * iterator over annotations processors.  If

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

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

   298      */

   299     private class ServiceIterator implements Iterator<Processor> {

   300         // The to-be-wrapped iterator.

   301         private Iterator<?> iterator;

   302         private Log log;

   303         private Class<?> loaderClass;

   304         private boolean jusl;

   305         private Object loader;

   307         ServiceIterator(ClassLoader classLoader, Log log) {

   308             String loadMethodName;

   310             this.log = log;

   311             try {

   312                 try {

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

   314                     loadMethodName = "load";

   315                     jusl = true;

   316                 } catch (ClassNotFoundException cnfe) {

   317                     try {

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

   319                         loadMethodName = "providers";

   320                         jusl = false;

   321                     } catch (ClassNotFoundException cnfe2) {

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

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

   324                                                                           null);

   325                         return;

   326                     }

   327                 }

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

   330                 Method loadMethod = loaderClass.getMethod(loadMethodName,

   331                                                           Class.class,

   332                                                           ClassLoader.class);

   334                 Object result = loadMethod.invoke(null,

   335                                                   Processor.class,

   336                                                   classLoader);

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

   339                 // method to get the iterator.

   340                 if (jusl) {

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

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

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

   344                 }

   346                 // The result should now be an iterator.

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

   348             } catch (Throwable t) {

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

   350                 throw new Abort(t);

   351             }

   352         }

   354         public boolean hasNext() {

   355             try {

   356                 return iterator.hasNext();

   357             } catch (Throwable t) {

   358                 if ("ServiceConfigurationError".

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

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

   361                 }

   362                 throw new Abort(t);

   363             }

   364         }

   366         public Processor next() {

   367             try {

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

   369             } catch (Throwable t) {

   370                 if ("ServiceConfigurationError".

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

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

   373                 } else {

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

   375                 }

   376                 throw new Abort(t);

   377             }

   378         }

   380         public void remove() {

   381             throw new UnsupportedOperationException();

   382         }

   384         public void close() {

   385             if (jusl) {

   386                 try {

   387                     // Call java.util.ServiceLoader.reload

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

   389                     reloadMethod.invoke(loader);

   390                 } catch(Exception e) {

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

   392                 }

   393             }

   394         }

   395     }

   398     private static class NameProcessIterator implements Iterator<Processor> {

   399         Processor nextProc = null;

   400         Iterator<String> names;

   401         ClassLoader processorCL;

   402         Log log;

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

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

   406             this.processorCL = processorCL;

   407             this.log = log;

   408         }

   410         public boolean hasNext() {

   411             if (nextProc != null)

   412                 return true;

   413             else {

   414                 if (!names.hasNext())

   415                     return false;

   416                 else {

   417                     String processorName = names.next();

   419                     Processor processor;

   420                     try {

   421                         try {

   422                             processor =

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

   424                         } catch (ClassNotFoundException cnfe) {

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

   426                             return false;

   427                         } catch (ClassCastException cce) {

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

   429                             return false;

   430                         } catch (Exception e ) {

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

   432                             return false;

   433                         }

   434                     } catch(Throwable t) {

   435                         throw new AnnotationProcessingError(t);

   436                     }

   437                     nextProc = processor;

   438                     return true;

   439                 }

   441             }

   442         }

   444         public Processor next() {

   445             if (hasNext()) {

   446                 Processor p = nextProc;

   447                 nextProc = null;

   448                 return p;

   449             } else

   450                 throw new NoSuchElementException();

   451         }

   453         public void remove () {

   454             throw new UnsupportedOperationException();

   455         }

   456     }

   458     public boolean atLeastOneProcessor() {

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

   460     }

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

   463         Options options = Options.instance(context);

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

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

   467         for(String key : keySet) {

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

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

   470                 String candidateKey = null;

   471                 String candidateValue = null;

   473                 if (sepIndex == -1)

   474                     candidateKey = key.substring(2);

   475                 else if (sepIndex >= 3) {

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

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

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

   479                 }

   480                 tempOptions.put(candidateKey, candidateValue);

   481             }

   482         }

   484         return Collections.unmodifiableMap(tempOptions);

   485     }

   487     private Set<String> initUnmatchedProcessorOptions() {

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

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

   490         return unmatchedProcessorOptions;

   491     }

   493     /**

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

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

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

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

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

   499      * only) getSupportedAnnotationTypes call to the processor.

   500      */

   501     static class ProcessorState {

   502         public Processor processor;

   503         public boolean   contributed;

   504         private ArrayList<Pattern> supportedAnnotationPatterns;

   505         private ArrayList<String>  supportedOptionNames;

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

   508             processor = p;

   509             contributed = false;

   511             try {

   512                 processor.init(env);

   514                 checkSourceVersionCompatibility(source, log);

   516                 supportedAnnotationPatterns = new ArrayList<Pattern>();

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

   518                     supportedAnnotationPatterns.add(importStringToPattern(importString,

   519                                                                           processor,

   520                                                                           log));

   521                 }

   523                 supportedOptionNames = new ArrayList<String>();

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

   525                     if (checkOptionName(optionName, log))

   526                         supportedOptionNames.add(optionName);

   527                 }

   529             } catch (Throwable t) {

   530                 throw new AnnotationProcessingError(t);

   531             }

   532         }

   534         /**

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

   536          * compatible with the compilation source version.  The

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

   538          * equal to the source version of the compile.

   539          */

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

   541             SourceVersion procSourceVersion = processor.getSupportedSourceVersion();

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

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

   545                             procSourceVersion,

   546                             processor.getClass().getName(),

   547                             source.name);

   548             }

   549         }

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

   552             boolean valid = isValidOptionName(optionName);

   553             if (!valid)

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

   555                             optionName,

   556                             processor.getClass().getName());

   557             return valid;

   558         }

   560         public boolean annotationSupported(String annotationName) {

   561             for(Pattern p: supportedAnnotationPatterns) {

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

   563                     return true;

   564             }

   565             return false;

   566         }

   568         /**

   569          * Remove options that are matched by this processor.

   570          */

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

   572             unmatchedProcessorOptions.removeAll(supportedOptionNames);

   573         }

   574     }

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

   577     /**

   578      * This class holds information about the processors that have

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

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

   581      * annotation processing.  The iterator first visits already

   582      * discovered processors then fails over to the service provider

   583      * mechanism if additional queries are made.

   584      */

   585     class DiscoveredProcessors implements Iterable<ProcessorState> {

   587         class ProcessorStateIterator implements Iterator<ProcessorState> {

   588             DiscoveredProcessors psi;

   589             Iterator<ProcessorState> innerIter;

   590             boolean onProcInterator;

   592             ProcessorStateIterator(DiscoveredProcessors psi) {

   593                 this.psi = psi;

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

   595                 this.onProcInterator = false;

   596             }

   598             public ProcessorState next() {

   599                 if (!onProcInterator) {

   600                     if (innerIter.hasNext())

   601                         return innerIter.next();

   602                     else

   603                         onProcInterator = true;

   604                 }

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

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

   608                                                            log, source, JavacProcessingEnvironment.this);

   609                     psi.procStateList.add(ps);

   610                     return ps;

   611                 } else

   612                     throw new NoSuchElementException();

   613             }

   615             public boolean hasNext() {

   616                 if (onProcInterator)

   617                     return  psi.processorIterator.hasNext();

   618                 else

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

   620             }

   622             public void remove () {

   623                 throw new UnsupportedOperationException();

   624             }

   626             /**

   627              * Run all remaining processors on the procStateList that

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

   629              * annotations.

   630              */

   631             public void runContributingProcs(RoundEnvironment re) {

   632                 if (!onProcInterator) {

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

   634                     while(innerIter.hasNext()) {

   635                         ProcessorState ps = innerIter.next();

   636                         if (ps.contributed)

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

   638                     }

   639                 }

   640             }

   641         }

   643         Iterator<? extends Processor> processorIterator;

   644         ArrayList<ProcessorState>  procStateList;

   646         public ProcessorStateIterator iterator() {

   647             return new ProcessorStateIterator(this);

   648         }

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

   651             this.processorIterator = processorIterator;

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

   653         }

   655         /**

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

   657          */

   658         public void close() {

   659             if (processorIterator != null &&

   660                 processorIterator instanceof ServiceIterator) {

   661                 ((ServiceIterator) processorIterator).close();

   662             }

   663         }

   664     }

   666     private void discoverAndRunProcs(Context context,

   667                                      Set<TypeElement> annotationsPresent,

   668                                      List<ClassSymbol> topLevelClasses,

   669                                      List<PackageSymbol> packageInfoFiles) {

   670         Map<String, TypeElement> unmatchedAnnotations =

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

   673         for(TypeElement a  : annotationsPresent) {

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

   675                                          a);

   676         }

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

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

   680             unmatchedAnnotations.put("", null);

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

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

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

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

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

   687         // are not doing processing in that case.

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

   690         rootElements.addAll(topLevelClasses);

   691         rootElements.addAll(packageInfoFiles);

   692         rootElements = Collections.unmodifiableSet(rootElements);

   694         RoundEnvironment renv = new JavacRoundEnvironment(false,

   695                                                           false,

   696                                                           rootElements,

   697                                                           JavacProcessingEnvironment.this);

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

   700             ProcessorState ps = psi.next();

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

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

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

   705                 String unmatchedAnnotationName = entry.getKey();

   706                 if (ps.annotationSupported(unmatchedAnnotationName) ) {

   707                     matchedNames.add(unmatchedAnnotationName);

   708                     TypeElement te = entry.getValue();

   709                     if (te != null)

   710                         typeElements.add(te);

   711                 }

   712             }

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

   715 //308                foundTypeProcessors = foundTypeProcessors || (ps.processor instanceof AbstractTypeProcessor);

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

   717                 ps.contributed = true;

   718                 ps.removeSupportedOptions(unmatchedProcessorOptions);

   720                 if (printProcessorInfo || verbose) {

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

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

   723                             matchedNames.toString(),

   724                             processingResult);

   725                 }

   727                 if (processingResult) {

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

   729                 }

   731             }

   732         }

   733         unmatchedAnnotations.remove("");

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

   736             // Remove annotations processed by javac

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

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

   739                 log = Log.instance(context);

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

   741                             unmatchedAnnotations.keySet());

   742             }

   743         }

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

   746         psi.runContributingProcs(renv);

   748         // Debugging

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

   750             filer.displayState();

   751     }

   753     /**

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

   755      * Leave class public for external testing purposes.

   756      */

   757     public static class ComputeAnnotationSet extends

   758         ElementScanner7<Set<TypeElement>, Set<TypeElement>> {

   759         final Elements elements;

   761         public ComputeAnnotationSet(Elements elements) {

   762             super();

   763             this.elements = elements;

   764         }

   766         @Override

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

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

   769             return p;

   770         }

   772         @Override

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

   774             for (AnnotationMirror annotationMirror :

   775                      elements.getAllAnnotationMirrors(e) ) {

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

   777                 p.add((TypeElement) e2);

   778             }

   779             return super.scan(e, p);

   780         }

   781     }

   783     private boolean callProcessor(Processor proc,

   784                                          Set<? extends TypeElement> tes,

   785                                          RoundEnvironment renv) {

   786         try {

   787             return proc.process(tes, renv);

   788         } catch (CompletionFailure ex) {

   789             StringWriter out = new StringWriter();

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

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

   792             return false;

   793         } catch (Throwable t) {

   794             throw new AnnotationProcessingError(t);

   795         }

   796     }

   798     /**

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

   800      */

   801     class Round {

   802         /** The round number. */

   803         final int number;

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

   805         final Context context;

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

   807         final JavaCompiler compiler;

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

   809         final Log log;

   810         /** The number of warnings in the previous round. */

   811         final int priorWarnings;

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

   814         List<JCCompilationUnit> roots;

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

   816         Map<String, JavaFileObject> genClassFiles;

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

   819         Set<TypeElement> annotationsPresent;

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

   821         List<ClassSymbol> topLevelClasses;

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

   823         List<PackageSymbol> packageInfoFiles;

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

   826         private Round(Context context, int number, int priorWarnings) {

   827             this.context = context;

   828             this.number = number;

   829             this.priorWarnings = priorWarnings;

   831             compiler = JavaCompiler.instance(context);

   832             log = Log.instance(context);

   833             log.deferDiagnostics = true;

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

   836             JavacProcessingEnvironment.this.context = context;

   838             // the following will be populated as needed

   839             topLevelClasses  = List.nil();

   840             packageInfoFiles = List.nil();

   841         }

   843         /** Create the first round. */

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

   845             this(context, 1, 0);

   846             this.roots = roots;

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

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

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

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

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

   854             topLevelClasses =

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

   857             packageInfoFiles = getPackageInfoFiles(roots);

   859             findAnnotationsPresent();

   860         }

   862         /** Create a new round. */

   863         private Round(Round prev,

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

   865             this(prev.nextContext(), prev.number+1, prev.compiler.log.nwarnings);

   866             this.genClassFiles = prev.genClassFiles;

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

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

   871             // Check for errors after parsing

   872             if (unrecoverableError())

   873                 return;

   875             enterClassFiles(genClassFiles);

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

   877             genClassFiles.putAll(newClassFiles);

   878             enterTrees(roots);

   880             if (unrecoverableError())

   881                 return;

   883             topLevelClasses = join(

   884                     getTopLevelClasses(parsedFiles),

   885                     getTopLevelClassesFromClasses(newClasses));

   887             packageInfoFiles = join(

   888                     getPackageInfoFiles(parsedFiles),

   889                     getPackageInfoFilesFromClasses(newClasses));

   891             findAnnotationsPresent();

   892         }

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

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

   896             try {

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

   898             } finally {

   899                 compiler.close(false);

   900             }

   901         }

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

   904         JavaCompiler finalCompiler(boolean errorStatus) {

   905             try {

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

   907                 if (errorStatus) {

   908                     c.log.nwarnings += priorWarnings + compiler.log.nwarnings;

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

   910                 }

   911                 return c;

   912             } finally {

   913                 compiler.close(false);

   914             }

   915         }

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

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

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

   920         int errorCount() {

   921             return compiler.errorCount();

   922         }

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

   925         int warningCount() {

   926             return compiler.warningCount();

   927         }

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

   930         boolean unrecoverableError() {

   931             if (messager.errorRaised())

   932                 return true;

   934             for (JCDiagnostic d: log.deferredDiagnostics) {

   935                 switch (d.getKind()) {

   936                     case WARNING:

   937                         if (werror)

   938                             return true;

   939                         break;

   941                     case ERROR:

   942                         if (fatalErrors || !d.isFlagSet(RESOLVE_ERROR))

   943                             return true;

   944                         break;

   945                 }

   946             }

   948             return false;

   949         }

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

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

   953         void findAnnotationsPresent() {

   954             ComputeAnnotationSet annotationComputer = new ComputeAnnotationSet(elementUtils);

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

   956             annotationsPresent = new LinkedHashSet<TypeElement>();

   957             for (ClassSymbol classSym : topLevelClasses)

   958                 annotationComputer.scan(classSym, annotationsPresent);

   959             for (PackageSymbol pkgSym : packageInfoFiles)

   960                 annotationComputer.scan(pkgSym, annotationsPresent);

   961         }

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

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

   965             ClassReader reader = ClassReader.instance(context);

   966             Names names = Names.instance(context);

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

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

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

   971                 JavaFileObject file = entry.getValue();

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

   973                     throw new AssertionError(file);

   974                 ClassSymbol cs;

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

   976                     Name packageName = Convert.packagePart(name);

   977                     PackageSymbol p = reader.enterPackage(packageName);

   978                     if (p.package_info == null)

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

   980                     cs = p.package_info;

   981                     if (cs.classfile == null)

   982                         cs.classfile = file;

   983                 } else

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

   985                 list = list.prepend(cs);

   986             }

   987             return list.reverse();

   988         }

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

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

   992             compiler.enterTrees(roots);

   993         }

   995         /** Run a processing round. */

   996         void run(boolean lastRound, boolean errorStatus) {

   997             printRoundInfo(lastRound);

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

  1000             if (taskListener != null)

  1001                 taskListener.started(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));

  1003             try {

  1004                 if (lastRound) {

  1005                     filer.setLastRound(true);

  1006                     Set<Element> emptyRootElements = Collections.emptySet(); // immutable

  1007                     RoundEnvironment renv = new JavacRoundEnvironment(true,

  1008                             errorStatus,

  1009                             emptyRootElements,

  1010                             JavacProcessingEnvironment.this);

  1011                     discoveredProcs.iterator().runContributingProcs(renv);

  1012                 } else {

  1013                     discoverAndRunProcs(context, annotationsPresent, topLevelClasses, packageInfoFiles);

  1014                 }

  1015             } finally {

  1016                 if (taskListener != null)

  1017                     taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));

  1018             }

  1019         }

  1021         void showDiagnostics(boolean showAll) {

  1022             Set<JCDiagnostic.Kind> kinds = EnumSet.allOf(JCDiagnostic.Kind.class);

  1023             if (!showAll) {

  1024                 // suppress errors, which are all presumed to be transient resolve errors

  1025                 kinds.remove(JCDiagnostic.Kind.ERROR);

  1026             }

  1027             log.reportDeferredDiagnostics(kinds);

  1028         }

  1030         /** Print info about this round. */

  1031         private void printRoundInfo(boolean lastRound) {

  1032             if (printRounds || verbose) {

  1033                 List<ClassSymbol> tlc = lastRound ? List.<ClassSymbol>nil() : topLevelClasses;

  1034                 Set<TypeElement> ap = lastRound ? Collections.<TypeElement>emptySet() : annotationsPresent;

  1035                 log.printNoteLines("x.print.rounds",

  1036                         number,

  1037                         "{" + tlc.toString(", ") + "}",

  1038                         ap,

  1039                         lastRound);

  1040             }

  1041         }

  1043         /** Get the context for the next round of processing.

  1044          * Important values are propogated from round to round;

  1045          * other values are implicitly reset.

  1046          */

  1047         private Context nextContext() {

  1048             Context next = new Context();

  1050             Options options = Options.instance(context);

  1051             assert options != null;

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

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

  1055             assert out != null;

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

  1058             final boolean shareNames = true;

  1059             if (shareNames) {

  1060                 Names names = Names.instance(context);

  1061                 assert names != null;

  1062                 next.put(Names.namesKey, names);

  1063             }

  1065             DiagnosticListener<?> dl = context.get(DiagnosticListener.class);

  1066             if (dl != null)

  1067                 next.put(DiagnosticListener.class, dl);

  1069             TaskListener tl = context.get(TaskListener.class);

  1070             if (tl != null)

  1071                 next.put(TaskListener.class, tl);

  1073             JavaFileManager jfm = context.get(JavaFileManager.class);

  1074             assert jfm != null;

  1075             next.put(JavaFileManager.class, jfm);

  1076             if (jfm instanceof JavacFileManager) {

  1077                 ((JavacFileManager)jfm).setContext(next);

  1078             }

  1080             Names names = Names.instance(context);

  1081             assert names != null;

  1082             next.put(Names.namesKey, names);

  1084             Keywords keywords = Keywords.instance(context);

  1085             assert(keywords != null);

  1086             next.put(Keywords.keywordsKey, keywords);

  1088             JavaCompiler oldCompiler = JavaCompiler.instance(context);

  1089             JavaCompiler nextCompiler = JavaCompiler.instance(next);

  1090             nextCompiler.initRound(oldCompiler);

  1092             filer.newRound(next);

  1093             messager.newRound(next);

  1094             elementUtils.setContext(next);

  1095             typeUtils.setContext(next);

  1097             JavacTaskImpl task = context.get(JavacTaskImpl.class);

  1098             if (task != null) {

  1099                 next.put(JavacTaskImpl.class, task);

  1100                 task.updateContext(next);

  1101             }

  1103             JavacTrees trees = context.get(JavacTrees.class);

  1104             if (trees != null) {

  1105                 next.put(JavacTrees.class, trees);

  1106                 trees.updateContext(next);

  1107             }

  1109             context.clear();

  1110             return next;

  1111         }

  1112     }

  1115     // TODO: internal catch clauses?; catch and rethrow an annotation

  1116     // processing error

  1117     public JavaCompiler doProcessing(Context context,

  1118                                      List<JCCompilationUnit> roots,

  1119                                      List<ClassSymbol> classSymbols,

  1120                                      Iterable<? extends PackageSymbol> pckSymbols) {

  1122         TaskListener taskListener = context.get(TaskListener.class);

  1123         log = Log.instance(context);

  1125         Set<PackageSymbol> specifiedPackages = new LinkedHashSet<PackageSymbol>();

  1126         for (PackageSymbol psym : pckSymbols)

  1127             specifiedPackages.add(psym);

  1128         this.specifiedPackages = Collections.unmodifiableSet(specifiedPackages);

  1130         Round round = new Round(context, roots, classSymbols);

  1132         boolean errorStatus;

  1133         boolean moreToDo;

  1134         do {

  1135             // Run processors for round n

  1136             round.run(false, false);

  1138             // Processors for round n have run to completion.

  1139             // Check for errors and whether there is more work to do.

  1140             errorStatus = round.unrecoverableError();

  1141             moreToDo = moreToDo();

  1143             round.showDiagnostics(errorStatus || showResolveErrors);

  1145             // Set up next round.

  1146             // Copy mutable collections returned from filer.

  1147             round = round.next(

  1148                     new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects()),

  1149                     new LinkedHashMap<String,JavaFileObject>(filer.getGeneratedClasses()));

  1151              // Check for errors during setup.

  1152             if (round.unrecoverableError())

  1153                 errorStatus = true;

  1155         } while (moreToDo && !errorStatus);

  1157         // run last round

  1158         round.run(true, errorStatus);

  1159         round.showDiagnostics(true);

  1161         filer.warnIfUnclosedFiles();

  1162         warnIfUnmatchedOptions();

  1164         /*

  1165          * If an annotation processor raises an error in a round,

  1166          * that round runs to completion and one last round occurs.

  1167          * The last round may also occur because no more source or

  1168          * class files have been generated.  Therefore, if an error

  1169          * was raised on either of the last *two* rounds, the compile

  1170          * should exit with a nonzero exit code.  The current value of

  1171          * errorStatus holds whether or not an error was raised on the

  1172          * second to last round; errorRaised() gives the error status

  1173          * of the last round.

  1174          */

  1175         if (messager.errorRaised()

  1176                 || werror && round.warningCount() > 0 && round.errorCount() > 0)

  1177             errorStatus = true;

  1179         Set<JavaFileObject> newSourceFiles =

  1180                 new LinkedHashSet<JavaFileObject>(filer.getGeneratedSourceFileObjects());

  1181         roots = cleanTrees(round.roots);

  1183         JavaCompiler compiler = round.finalCompiler(errorStatus);

  1185         if (newSourceFiles.size() > 0)

  1186             roots = roots.appendList(compiler.parseFiles(newSourceFiles));

  1188         errorStatus = errorStatus || (compiler.errorCount() > 0);

  1190         // Free resources

  1191         this.close();

  1193         if (taskListener != null)

  1194             taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING));

  1196         if (errorStatus) {

  1197             if (compiler.errorCount() == 0)

  1198                 compiler.log.nerrors++;

  1199             return compiler;

  1200         }

  1202         if (procOnly && !foundTypeProcessors) {

  1203             compiler.todo.clear();

  1204         } else {

  1205             if (procOnly && foundTypeProcessors)

  1206                 compiler.shouldStopPolicy = CompileState.FLOW;

  1208             compiler.enterTrees(roots);

  1209         }

  1211         return compiler;

  1212     }

  1214     private void warnIfUnmatchedOptions() {

  1215         if (!unmatchedProcessorOptions.isEmpty()) {

  1216             log.warning("proc.unmatched.processor.options", unmatchedProcessorOptions.toString());

  1217         }

  1218     }

  1220     /**

  1221      * Free resources related to annotation processing.

  1222      */

  1223     public void close() {

  1224         filer.close();

  1225         if (discoveredProcs != null) // Make calling close idempotent

  1226             discoveredProcs.close();

  1227         discoveredProcs = null;

  1228         if (processorClassLoader != null && processorClassLoader instanceof Closeable) {

  1229             try {

  1230                 ((Closeable) processorClassLoader).close();

  1231             } catch (IOException e) {

  1232                 JCDiagnostic msg = diags.fragment("fatal.err.cant.close.loader");

  1233                 throw new FatalError(msg, e);

  1234             }

  1235         }

  1236     }

  1238     private List<ClassSymbol> getTopLevelClasses(List<? extends JCCompilationUnit> units) {

  1239         List<ClassSymbol> classes = List.nil();

  1240         for (JCCompilationUnit unit : units) {

  1241             for (JCTree node : unit.defs) {

  1242                 if (node.getTag() == JCTree.CLASSDEF) {

  1243                     ClassSymbol sym = ((JCClassDecl) node).sym;

  1244                     assert sym != null;

  1245                     classes = classes.prepend(sym);

  1246                 }

  1247             }

  1248         }

  1249         return classes.reverse();

  1250     }

  1252     private List<ClassSymbol> getTopLevelClassesFromClasses(List<? extends ClassSymbol> syms) {

  1253         List<ClassSymbol> classes = List.nil();

  1254         for (ClassSymbol sym : syms) {

  1255             if (!isPkgInfo(sym)) {

  1256                 classes = classes.prepend(sym);

  1257             }

  1258         }

  1259         return classes.reverse();

  1260     }

  1262     private List<PackageSymbol> getPackageInfoFiles(List<? extends JCCompilationUnit> units) {

  1263         List<PackageSymbol> packages = List.nil();

  1264         for (JCCompilationUnit unit : units) {

  1265             if (isPkgInfo(unit.sourcefile, JavaFileObject.Kind.SOURCE)) {

  1266                 packages = packages.prepend(unit.packge);

  1267             }

  1268         }

  1269         return packages.reverse();

  1270     }

  1272     private List<PackageSymbol> getPackageInfoFilesFromClasses(List<? extends ClassSymbol> syms) {

  1273         List<PackageSymbol> packages = List.nil();

  1274         for (ClassSymbol sym : syms) {

  1275             if (isPkgInfo(sym)) {

  1276                 packages = packages.prepend((PackageSymbol) sym.owner);

  1277             }

  1278         }

  1279         return packages.reverse();

  1280     }

  1282     // avoid unchecked warning from use of varargs

  1283     private static <T> List<T> join(List<T> list1, List<T> list2) {

  1284         return list1.appendList(list2);

  1285     }

  1287     private boolean isPkgInfo(JavaFileObject fo, JavaFileObject.Kind kind) {

  1288         return fo.isNameCompatible("package-info", kind);

  1289     }

  1291     private boolean isPkgInfo(ClassSymbol sym) {

  1292         return isPkgInfo(sym.classfile, JavaFileObject.Kind.CLASS) && (sym.packge().package_info == sym);

  1293     }

  1295     /*

  1296      * Called retroactively to determine if a class loader was required,

  1297      * after we have failed to create one.

  1298      */

  1299     private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {

  1300         if (procNames != null)

  1301             return true;

  1303         String procPath;

  1304         URL[] urls = new URL[1];

  1305         for(File pathElement : workingpath) {

  1306             try {

  1307                 urls[0] = pathElement.toURI().toURL();

  1308                 if (ServiceProxy.hasService(Processor.class, urls))

  1309                     return true;

  1310             } catch (MalformedURLException ex) {

  1311                 throw new AssertionError(ex);

  1312             }

  1313             catch (ServiceProxy.ServiceConfigurationError e) {

  1314                 log.error("proc.bad.config.file", e.getLocalizedMessage());

  1315                 return true;

  1316             }

  1317         }

  1319         return false;

  1320     }

  1322     private static <T extends JCTree> List<T> cleanTrees(List<T> nodes) {

  1323         for (T node : nodes)

  1324             treeCleaner.scan(node);

  1325         return nodes;

  1326     }

  1328     private static TreeScanner treeCleaner = new TreeScanner() {

  1329             public void scan(JCTree node) {

  1330                 super.scan(node);

  1331                 if (node != null)

  1332                     node.type = null;

  1333             }

  1334             public void visitTopLevel(JCCompilationUnit node) {

  1335                 node.packge = null;

  1336                 super.visitTopLevel(node);

  1337             }

  1338             public void visitClassDef(JCClassDecl node) {

  1339                 node.sym = null;

  1340                 super.visitClassDef(node);

  1341             }

  1342             public void visitMethodDef(JCMethodDecl node) {

  1343                 node.sym = null;

  1344                 super.visitMethodDef(node);

  1345             }

  1346             public void visitVarDef(JCVariableDecl node) {

  1347                 node.sym = null;

  1348                 super.visitVarDef(node);

  1349             }

  1350             public void visitNewClass(JCNewClass node) {

  1351                 node.constructor = null;

  1352                 super.visitNewClass(node);

  1353             }

  1354             public void visitAssignop(JCAssignOp node) {

  1355                 node.operator = null;

  1356                 super.visitAssignop(node);

  1357             }

  1358             public void visitUnary(JCUnary node) {

  1359                 node.operator = null;

  1360                 super.visitUnary(node);

  1361             }

  1362             public void visitBinary(JCBinary node) {

  1363                 node.operator = null;

  1364                 super.visitBinary(node);

  1365             }

  1366             public void visitSelect(JCFieldAccess node) {

  1367                 node.sym = null;

  1368                 super.visitSelect(node);

  1369             }

  1370             public void visitIdent(JCIdent node) {

  1371                 node.sym = null;

  1372                 super.visitIdent(node);

  1373             }

  1374         };

  1377     private boolean moreToDo() {

  1378         return filer.newFiles();

  1379     }

  1381     /**

  1382      * {@inheritdoc}

  1383      *

  1384      * Command line options suitable for presenting to annotation

  1385      * processors.  "-Afoo=bar" should be "-Afoo" => "bar".

  1386      */

  1387     public Map<String,String> getOptions() {

  1388         return processorOptions;

  1389     }

  1391     public Messager getMessager() {

  1392         return messager;

  1393     }

  1395     public Filer getFiler() {

  1396         return filer;

  1397     }

  1399     public JavacElements getElementUtils() {

  1400         return elementUtils;

  1401     }

  1403     public JavacTypes getTypeUtils() {

  1404         return typeUtils;

  1405     }

  1407     public SourceVersion getSourceVersion() {

  1408         return Source.toSourceVersion(source);

  1409     }

  1411     public Locale getLocale() {

  1412         return messages.getCurrentLocale();

  1413     }

  1415     public Set<Symbol.PackageSymbol> getSpecifiedPackages() {

  1416         return specifiedPackages;

  1417     }

  1419     private static final Pattern allMatches = Pattern.compile(".*");

  1420     public static final Pattern noMatches  = Pattern.compile("(\\P{all})+");

  1422     /**

  1423      * Convert import-style string for supported annotations into a

  1424      * regex matching that string.  If the string is a valid

  1425      * import-style string, return a regex that won't match anything.

  1426      */

  1427     private static Pattern importStringToPattern(String s, Processor p, Log log) {

  1428         if (isValidImportString(s)) {

  1429             return validImportStringToPattern(s);

  1430         } else {

  1431             log.warning("proc.malformed.supported.string", s, p.getClass().getName());

  1432             return noMatches; // won't match any valid identifier

  1433         }

  1434     }

  1436     /**

  1437      * Return true if the argument string is a valid import-style

  1438      * string specifying claimed annotations; return false otherwise.

  1439      */

  1440     public static boolean isValidImportString(String s) {

  1441         if (s.equals("*"))

  1442             return true;

  1444         boolean valid = true;

  1445         String t = s;

  1446         int index = t.indexOf('*');

  1448         if (index != -1) {

  1449             // '*' must be last character...

  1450             if (index == t.length() -1) {

  1451                 // ... any and preceding character must be '.'

  1452                 if ( index-1 >= 0 ) {

  1453                     valid = t.charAt(index-1) == '.';

  1454                     // Strip off ".*$" for identifier checks

  1455                     t = t.substring(0, t.length()-2);

  1456                 }

  1457             } else

  1458                 return false;

  1459         }

  1461         // Verify string is off the form (javaId \.)+ or javaId

  1462         if (valid) {

  1463             String[] javaIds = t.split("\\.", t.length()+2);

  1464             for(String javaId: javaIds)

  1465                 valid &= SourceVersion.isIdentifier(javaId);

  1466         }

  1467         return valid;

  1468     }

  1470     public static Pattern validImportStringToPattern(String s) {

  1471         if (s.equals("*")) {

  1472             return allMatches;

  1473         } else {

  1474             String s_prime = s.replace(".", "\\.");

  1476             if (s_prime.endsWith("*")) {

  1477                 s_prime =  s_prime.substring(0, s_prime.length() - 1) + ".+";

  1478             }

  1480             return Pattern.compile(s_prime);

  1481         }

  1482     }

  1484     /**

  1485      * For internal use only.  This method will be

  1486      * removed without warning.

  1487      */

  1488     public Context getContext() {

  1489         return context;

  1490     }

  1492     public String toString() {

  1493         return "javac ProcessingEnvironment";

  1494     }

  1496     public static boolean isValidOptionName(String optionName) {

  1497         for(String s : optionName.split("\\.", -1)) {

  1498             if (!SourceVersion.isIdentifier(s))

  1499                 return false;

  1500         }

  1501         return true;

  1502     }

  1503 }

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

src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@4851ff2ffc10

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