jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@f2fdd52e4e87

6944312: Potential rebranding issues in openjdk/langtools repository sources
Reviewed-by: darcy

     1 /*

     2  * Copyright (c) 2005, 2009, 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.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.code.*;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    78 import static javax.tools.StandardLocation.*;

    80 /**

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

    82  * annotation processing.

    83  *

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

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

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

    87  * deletion without notice.</b>

    88  */

    89 public class JavacProcessingEnvironment implements ProcessingEnvironment, Closeable {

    90     Options options;

    92     private final boolean printProcessorInfo;

    93     private final boolean printRounds;

    94     private final boolean verbose;

    95     private final boolean lint;

    96     private final boolean procOnly;

    97     private final boolean fatalErrors;

    98     private boolean foundTypeProcessors;

   100     private final JavacFiler filer;

   101     private final JavacMessager messager;

   102     private final JavacElements elementUtils;

   103     private final JavacTypes typeUtils;

   105     /**

   106      * Holds relevant state history of which processors have been

   107      * used.

   108      */

   109     private DiscoveredProcessors discoveredProcs;

   111     /**

   112      * Map of processor-specific options.

   113      */

   114     private final Map<String, String> processorOptions;

   116     /**

   117      */

   118     private final Set<String> unmatchedProcessorOptions;

   120     /**

   121      * Annotations implicitly processed and claimed by javac.

   122      */

   123     private final Set<String> platformAnnotations;

   125     /**

   126      * Set of packages given on command line.

   127      */

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

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

   131      */

   132     Log log;

   134     /**

   135      * Source level of the compile.

   136      */

   137     Source source;

   139     private ClassLoader processorClassLoader;

   141     /**

   142      * JavacMessages object used for localization

   143      */

   144     private JavacMessages messages;

   146     private Context context;

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

   149         options = Options.instance(context);

   150         this.context = context;

   151         log = Log.instance(context);

   152         source = Source.instance(context);

   153         printProcessorInfo = options.get("-XprintProcessorInfo") != null;

   154         printRounds = options.get("-XprintRounds") != null;

   155         verbose = options.get("-verbose") != null;

   156         lint = options.lint("processing");

   157         procOnly = options.get("-proc:only") != null ||

   158             options.get("-Xprint") != null;

   159         fatalErrors = options.get("fatalEnterError") != null;

   160         platformAnnotations = initPlatformAnnotations();

   161         foundTypeProcessors = false;

   163         // Initialize services before any processors are initialzied

   164         // in case processors use them.

   165         filer = new JavacFiler(context);

   166         messager = new JavacMessager(context, this);

   167         elementUtils = new JavacElements(context);

   168         typeUtils = new JavacTypes(context);

   169         processorOptions = initProcessorOptions(context);

   170         unmatchedProcessorOptions = initUnmatchedProcessorOptions();

   171         messages = JavacMessages.instance(context);

   172         initProcessorIterator(context, processors);

   173     }

   175     private Set<String> initPlatformAnnotations() {

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

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

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

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

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

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

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

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

   184         return Collections.unmodifiableSet(platformAnnotations);

   185     }

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

   188         Log   log   = Log.instance(context);

   189         Iterator<? extends Processor> processorIterator;

   191         if (options.get("-Xprint") != null) {

   192             try {

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

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

   195             } catch (Throwable t) {

   196                 AssertionError assertError =

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

   198                 assertError.initCause(t);

   199                 throw assertError;

   200             }

   201         } else if (processors != null) {

   202             processorIterator = processors.iterator();

   203         } else {

   204             String processorNames = options.get("-processor");

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

   206             try {

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

   208                 processorClassLoader = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)

   209                     ? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)

   210                     : fileManager.getClassLoader(CLASS_PATH);

   212                 /*

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

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

   215                  * provider mechanism to create the processor iterator.

   216                  */

   217                 if (processorNames != null) {

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

   219                 } else {

   220                     processorIterator = new ServiceIterator(processorClassLoader, log);

   221                 }

   222             } catch (SecurityException e) {

   223                 /*

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

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

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

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

   228                  */

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

   230             }

   231         }

   232         discoveredProcs = new DiscoveredProcessors(processorIterator);

   233     }

   235     /**

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

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

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

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

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

   241      * created.

   242      *

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

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

   245      */

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

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

   249         if (fileManager instanceof JavacFileManager) {

   250             StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;

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

   252                 ? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)

   253                 : standardFileManager.getLocation(CLASS_PATH);

   255             if (needClassLoader(options.get("-processor"), workingPath) )

   256                 handleException(key, e);

   258         } else {

   259             handleException(key, e);

   260         }

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

   263         return pl.iterator();

   264     }

   266     /**

   267      * Handle a security exception thrown during initializing the

   268      * Processor iterator.

   269      */

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

   271         if (e != null) {

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

   273             throw new Abort(e);

   274         } else {

   275             log.error(key);

   276             throw new Abort();

   277         }

   278     }

   280     /**

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

   282      * iterator over annotations processors.  If

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

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

   285      */

   286     private class ServiceIterator implements Iterator<Processor> {

   287         // The to-be-wrapped iterator.

   288         private Iterator<?> iterator;

   289         private Log log;

   290         private Class<?> loaderClass;

   291         private boolean jusl;

   292         private Object loader;

   294         ServiceIterator(ClassLoader classLoader, Log log) {

   295             String loadMethodName;

   297             this.log = log;

   298             try {

   299                 try {

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

   301                     loadMethodName = "load";

   302                     jusl = true;

   303                 } catch (ClassNotFoundException cnfe) {

   304                     try {

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

   306                         loadMethodName = "providers";

   307                         jusl = false;

   308                     } catch (ClassNotFoundException cnfe2) {

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

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

   311                                                                           null);

   312                         return;

   313                     }

   314                 }

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

   317                 Method loadMethod = loaderClass.getMethod(loadMethodName,

   318                                                           Class.class,

   319                                                           ClassLoader.class);

   321                 Object result = loadMethod.invoke(null,

   322                                                   Processor.class,

   323                                                   classLoader);

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

   326                 // method to get the iterator.

   327                 if (jusl) {

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

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

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

   331                 }

   333                 // The result should now be an iterator.

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

   335             } catch (Throwable t) {

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

   337                 throw new Abort(t);

   338             }

   339         }

   341         public boolean hasNext() {

   342             try {

   343                 return iterator.hasNext();

   344             } catch (Throwable t) {

   345                 if ("ServiceConfigurationError".

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

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

   348                 }

   349                 throw new Abort(t);

   350             }

   351         }

   353         public Processor next() {

   354             try {

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

   356             } catch (Throwable t) {

   357                 if ("ServiceConfigurationError".

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

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

   360                 } else {

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

   362                 }

   363                 throw new Abort(t);

   364             }

   365         }

   367         public void remove() {

   368             throw new UnsupportedOperationException();

   369         }

   371         public void close() {

   372             if (jusl) {

   373                 try {

   374                     // Call java.util.ServiceLoader.reload

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

   376                     reloadMethod.invoke(loader);

   377                 } catch(Exception e) {

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

   379                 }

   380             }

   381         }

   382     }

   385     private static class NameProcessIterator implements Iterator<Processor> {

   386         Processor nextProc = null;

   387         Iterator<String> names;

   388         ClassLoader processorCL;

   389         Log log;

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

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

   393             this.processorCL = processorCL;

   394             this.log = log;

   395         }

   397         public boolean hasNext() {

   398             if (nextProc != null)

   399                 return true;

   400             else {

   401                 if (!names.hasNext())

   402                     return false;

   403                 else {

   404                     String processorName = names.next();

   406                     Processor processor;

   407                     try {

   408                         try {

   409                             processor =

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

   411                         } catch (ClassNotFoundException cnfe) {

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

   413                             return false;

   414                         } catch (ClassCastException cce) {

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

   416                             return false;

   417                         } catch (Exception e ) {

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

   419                             return false;

   420                         }

   421                     } catch(Throwable t) {

   422                         throw new AnnotationProcessingError(t);

   423                     }

   424                     nextProc = processor;

   425                     return true;

   426                 }

   428             }

   429         }

   431         public Processor next() {

   432             if (hasNext()) {

   433                 Processor p = nextProc;

   434                 nextProc = null;

   435                 return p;

   436             } else

   437                 throw new NoSuchElementException();

   438         }

   440         public void remove () {

   441             throw new UnsupportedOperationException();

   442         }

   443     }

   445     public boolean atLeastOneProcessor() {

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

   447     }

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

   450         Options options = Options.instance(context);

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

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

   454         for(String key : keySet) {

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

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

   457                 String candidateKey = null;

   458                 String candidateValue = null;

   460                 if (sepIndex == -1)

   461                     candidateKey = key.substring(2);

   462                 else if (sepIndex >= 3) {

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

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

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

   466                 }

   467                 tempOptions.put(candidateKey, candidateValue);

   468             }

   469         }

   471         return Collections.unmodifiableMap(tempOptions);

   472     }

   474     private Set<String> initUnmatchedProcessorOptions() {

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

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

   477         return unmatchedProcessorOptions;

   478     }

   480     /**

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

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

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

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

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

   486      * only) getSupportedAnnotationTypes call to the processor.

   487      */

   488     static class ProcessorState {

   489         public Processor processor;

   490         public boolean   contributed;

   491         private ArrayList<Pattern> supportedAnnotationPatterns;

   492         private ArrayList<String>  supportedOptionNames;

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

   495             processor = p;

   496             contributed = false;

   498             try {

   499                 processor.init(env);

   501                 checkSourceVersionCompatibility(source, log);

   503                 supportedAnnotationPatterns = new ArrayList<Pattern>();

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

   505                     supportedAnnotationPatterns.add(importStringToPattern(importString,

   506                                                                           processor,

   507                                                                           log));

   508                 }

   510                 supportedOptionNames = new ArrayList<String>();

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

   512                     if (checkOptionName(optionName, log))

   513                         supportedOptionNames.add(optionName);

   514                 }

   516             } catch (Throwable t) {

   517                 throw new AnnotationProcessingError(t);

   518             }

   519         }

   521         /**

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

   523          * compatible with the compilation source version.  The

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

   525          * equal to the source version of the compile.

   526          */

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

   528             SourceVersion procSourceVersion = processor.getSupportedSourceVersion();

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

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

   532                             procSourceVersion,

   533                             processor.getClass().getName(),

   534                             source.name);

   535             }

   536         }

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

   539             boolean valid = isValidOptionName(optionName);

   540             if (!valid)

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

   542                             optionName,

   543                             processor.getClass().getName());

   544             return valid;

   545         }

   547         public boolean annotationSupported(String annotationName) {

   548             for(Pattern p: supportedAnnotationPatterns) {

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

   550                     return true;

   551             }

   552             return false;

   553         }

   555         /**

   556          * Remove options that are matched by this processor.

   557          */

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

   559             unmatchedProcessorOptions.removeAll(supportedOptionNames);

   560         }

   561     }

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

   564     /**

   565      * This class holds information about the processors that have

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

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

   568      * annotation processing.  The iterator first visits already

   569      * discovered processors then fails over to the service provider

   570      * mechanism if additional queries are made.

   571      */

   572     class DiscoveredProcessors implements Iterable<ProcessorState> {

   574         class ProcessorStateIterator implements Iterator<ProcessorState> {

   575             DiscoveredProcessors psi;

   576             Iterator<ProcessorState> innerIter;

   577             boolean onProcInterator;

   579             ProcessorStateIterator(DiscoveredProcessors psi) {

   580                 this.psi = psi;

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

   582                 this.onProcInterator = false;

   583             }

   585             public ProcessorState next() {

   586                 if (!onProcInterator) {

   587                     if (innerIter.hasNext())

   588                         return innerIter.next();

   589                     else

   590                         onProcInterator = true;

   591                 }

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

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

   595                                                            log, source, JavacProcessingEnvironment.this);

   596                     psi.procStateList.add(ps);

   597                     return ps;

   598                 } else

   599                     throw new NoSuchElementException();

   600             }

   602             public boolean hasNext() {

   603                 if (onProcInterator)

   604                     return  psi.processorIterator.hasNext();

   605                 else

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

   607             }

   609             public void remove () {

   610                 throw new UnsupportedOperationException();

   611             }

   613             /**

   614              * Run all remaining processors on the procStateList that

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

   616              * annotations.

   617              */

   618             public void runContributingProcs(RoundEnvironment re) {

   619                 if (!onProcInterator) {

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

   621                     while(innerIter.hasNext()) {

   622                         ProcessorState ps = innerIter.next();

   623                         if (ps.contributed)

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

   625                     }

   626                 }

   627             }

   628         }

   630         Iterator<? extends Processor> processorIterator;

   631         ArrayList<ProcessorState>  procStateList;

   633         public ProcessorStateIterator iterator() {

   634             return new ProcessorStateIterator(this);

   635         }

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

   638             this.processorIterator = processorIterator;

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

   640         }

   642         /**

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

   644          */

   645         public void close() {

   646             if (processorIterator != null &&

   647                 processorIterator instanceof ServiceIterator) {

   648                 ((ServiceIterator) processorIterator).close();

   649             }

   650         }

   651     }

   653     private void discoverAndRunProcs(Context context,

   654                                      Set<TypeElement> annotationsPresent,

   655                                      List<ClassSymbol> topLevelClasses,

   656                                      List<PackageSymbol> packageInfoFiles) {

   657         // Writer for -XprintRounds and -XprintProcessorInfo data

   658         PrintWriter xout = context.get(Log.outKey);

   660         Map<String, TypeElement> unmatchedAnnotations =

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

   663         for(TypeElement a  : annotationsPresent) {

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

   665                                          a);

   666         }

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

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

   670             unmatchedAnnotations.put("", null);

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

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

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

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

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

   677         // are not doing processing in that case.

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

   680         rootElements.addAll(topLevelClasses);

   681         rootElements.addAll(packageInfoFiles);

   682         rootElements = Collections.unmodifiableSet(rootElements);

   684         RoundEnvironment renv = new JavacRoundEnvironment(false,

   685                                                           false,

   686                                                           rootElements,

   687                                                           JavacProcessingEnvironment.this);

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

   690             ProcessorState ps = psi.next();

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

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

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

   695                 String unmatchedAnnotationName = entry.getKey();

   696                 if (ps.annotationSupported(unmatchedAnnotationName) ) {

   697                     matchedNames.add(unmatchedAnnotationName);

   698                     TypeElement te = entry.getValue();

   699                     if (te != null)

   700                         typeElements.add(te);

   701                 }

   702             }

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

   705                 foundTypeProcessors = foundTypeProcessors || (ps.processor instanceof AbstractTypeProcessor);

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

   707                 ps.contributed = true;

   708                 ps.removeSupportedOptions(unmatchedProcessorOptions);

   710                 if (printProcessorInfo || verbose) {

   711                     xout.println(Log.getLocalizedString("x.print.processor.info",

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

   713                                                         matchedNames.toString(),

   714                                                         processingResult));

   715                 }

   717                 if (processingResult) {

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

   719                 }

   721             }

   722         }

   723         unmatchedAnnotations.remove("");

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

   726             // Remove annotations processed by javac

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

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

   729                 log = Log.instance(context);

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

   731                             unmatchedAnnotations.keySet());

   732             }

   733         }

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

   736         psi.runContributingProcs(renv);

   738         // Debugging

   739         if (options.get("displayFilerState") != null)

   740             filer.displayState();

   741     }

   743     /**

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

   745      * Leave class public for external testing purposes.

   746      */

   747     public static class ComputeAnnotationSet extends

   748         ElementScanner7<Set<TypeElement>, Set<TypeElement>> {

   749         final Elements elements;

   751         public ComputeAnnotationSet(Elements elements) {

   752             super();

   753             this.elements = elements;

   754         }

   756         @Override

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

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

   759             return p;

   760         }

   762         @Override

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

   764             for (AnnotationMirror annotationMirror :

   765                      elements.getAllAnnotationMirrors(e) ) {

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

   767                 p.add((TypeElement) e2);

   768             }

   769             return super.scan(e, p);

   770         }

   771     }

   773     private boolean callProcessor(Processor proc,

   774                                          Set<? extends TypeElement> tes,

   775                                          RoundEnvironment renv) {

   776         try {

   777             return proc.process(tes, renv);

   778         } catch (CompletionFailure ex) {

   779             StringWriter out = new StringWriter();

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

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

   782             return false;

   783         } catch (Throwable t) {

   784             throw new AnnotationProcessingError(t);

   785         }

   786     }

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

   790     // processing error

   791     public JavaCompiler doProcessing(Context context,

   792                                      List<JCCompilationUnit> roots,

   793                                      List<ClassSymbol> classSymbols,

   794                                      Iterable<? extends PackageSymbol> pckSymbols)

   795         throws IOException {

   797         log = Log.instance(context);

   798         // Writer for -XprintRounds and -XprintProcessorInfo data

   799         PrintWriter xout = context.get(Log.outKey);

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

   802         JavaCompiler compiler = JavaCompiler.instance(context);

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

   805         int round = 0;

   807         // List<JCAnnotation> annotationsPresentInSource = collector.findAnnotations(roots);

   808         List<ClassSymbol> topLevelClasses = getTopLevelClasses(roots);

   810         for (ClassSymbol classSym : classSymbols)

   811             topLevelClasses = topLevelClasses.prepend(classSym);

   812         List<PackageSymbol> packageInfoFiles =

   813             getPackageInfoFiles(roots);

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

   816         for (PackageSymbol psym : pckSymbols)

   817             specifiedPackages.add(psym);

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

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

   821         Set<TypeElement> annotationsPresent = new LinkedHashSet<TypeElement>();

   822         ComputeAnnotationSet annotationComputer = new ComputeAnnotationSet(elementUtils);

   823         for (ClassSymbol classSym : topLevelClasses)

   824             annotationComputer.scan(classSym, annotationsPresent);

   825         for (PackageSymbol pkgSym : packageInfoFiles)

   826             annotationComputer.scan(pkgSym, annotationsPresent);

   828         Context currentContext = context;

   830         int roundNumber = 0;

   831         boolean errorStatus = false;

   833         runAround:

   834         while(true) {

   835             if (fatalErrors && compiler.errorCount() != 0) {

   836                 errorStatus = true;

   837                 break runAround;

   838             }

   840             this.context = currentContext;

   841             roundNumber++;

   842             printRoundInfo(xout, roundNumber, topLevelClasses, annotationsPresent, false);

   844             if (taskListener != null)

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

   847             try {

   848                 discoverAndRunProcs(currentContext, annotationsPresent, topLevelClasses, packageInfoFiles);

   849             } finally {

   850                 if (taskListener != null)

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

   852             }

   854             /*

   855              * Processors for round n have run to completion.  Prepare

   856              * for round (n+1) by checked for errors raised by

   857              * annotation processors and then checking for syntax

   858              * errors on any generated source files.

   859              */

   860             if (messager.errorRaised()) {

   861                 errorStatus = true;

   862                 break runAround;

   863             } else {

   864                 if (moreToDo()) {

   865                     // annotationsPresentInSource = List.nil();

   866                     annotationsPresent = new LinkedHashSet<TypeElement>();

   867                     topLevelClasses  = List.nil();

   868                     packageInfoFiles = List.nil();

   870                     compiler.close(false);

   871                     currentContext = contextForNextRound(currentContext, true);

   873                     JavaFileManager fileManager = currentContext.get(JavaFileManager.class);

   875                     compiler = JavaCompiler.instance(currentContext);

   876                     List<JCCompilationUnit> parsedFiles = sourcesToParsedFiles(compiler);

   877                     roots = cleanTrees(roots).appendList(parsedFiles);

   879                     // Check for errors after parsing

   880                     if (log.unrecoverableError) {

   881                         errorStatus = true;

   882                         break runAround;

   883                     } else {

   884                         List<ClassSymbol> newClasses = enterNewClassFiles(currentContext);

   885                         compiler.enterTrees(roots);

   887                         // annotationsPresentInSource =

   888                         // collector.findAnnotations(parsedFiles);

   889                         ListBuffer<ClassSymbol> tlc = new ListBuffer<ClassSymbol>();

   890                         tlc.appendList(getTopLevelClasses(parsedFiles));

   891                         tlc.appendList(getTopLevelClassesFromClasses(newClasses));

   892                         topLevelClasses  = tlc.toList();

   894                         ListBuffer<PackageSymbol> pif = new ListBuffer<PackageSymbol>();

   895                         pif.appendList(getPackageInfoFiles(parsedFiles));

   896                         pif.appendList(getPackageInfoFilesFromClasses(newClasses));

   897                         packageInfoFiles = pif.toList();

   899                         annotationsPresent = new LinkedHashSet<TypeElement>();

   900                         for (ClassSymbol classSym : topLevelClasses)

   901                             annotationComputer.scan(classSym, annotationsPresent);

   902                         for (PackageSymbol pkgSym : packageInfoFiles)

   903                             annotationComputer.scan(pkgSym, annotationsPresent);

   905                         updateProcessingState(currentContext, false);

   906                     }

   907                 } else

   908                     break runAround; // No new files

   909             }

   910         }

   911         roots = runLastRound(xout, roundNumber, errorStatus, compiler, roots, taskListener);

   912         // Set error status for any files compiled and generated in

   913         // the last round

   914         if (log.unrecoverableError)

   915             errorStatus = true;

   917         compiler.close(false);

   918         currentContext = contextForNextRound(currentContext, true);

   919         compiler = JavaCompiler.instance(currentContext);

   921         filer.newRound(currentContext, true);

   922         filer.warnIfUnclosedFiles();

   923         warnIfUnmatchedOptions();

   925        /*

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

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

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

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

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

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

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

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

   934         * of the last round.

   935         */

   936         errorStatus = errorStatus || messager.errorRaised();

   939         // Free resources

   940         this.close();

   942         if (taskListener != null)

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

   945         if (errorStatus) {

   946             compiler.log.nerrors += messager.errorCount();

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

   948                 compiler.log.nerrors++;

   949         } else if (procOnly && !foundTypeProcessors) {

   950             compiler.todo.clear();

   951         } else { // Final compilation

   952             compiler.close(false);

   953             currentContext = contextForNextRound(currentContext, true);

   954             this.context = currentContext;

   955             updateProcessingState(currentContext, true);

   956             compiler = JavaCompiler.instance(currentContext);

   957             if (procOnly && foundTypeProcessors)

   958                 compiler.shouldStopPolicy = CompileState.FLOW;

   960             if (true) {

   961                 compiler.enterTrees(cleanTrees(roots));

   962             } else {

   963                 List<JavaFileObject> fileObjects = List.nil();

   964                 for (JCCompilationUnit unit : roots)

   965                     fileObjects = fileObjects.prepend(unit.getSourceFile());

   966                 roots = null;

   967                 compiler.enterTrees(compiler.parseFiles(fileObjects.reverse()));

   968             }

   969         }

   971         return compiler;

   972     }

   974     private List<JCCompilationUnit> sourcesToParsedFiles(JavaCompiler compiler)

   975         throws IOException {

   976         List<JavaFileObject> fileObjects = List.nil();

   977         for (JavaFileObject jfo : filer.getGeneratedSourceFileObjects() ) {

   978             fileObjects = fileObjects.prepend(jfo);

   979         }

   981        return compiler.parseFiles(fileObjects);

   982     }

   984     // Call the last round of annotation processing

   985     private List<JCCompilationUnit> runLastRound(PrintWriter xout,

   986                                                  int roundNumber,

   987                                                  boolean errorStatus,

   988                                                  JavaCompiler compiler,

   989                                                  List<JCCompilationUnit> roots,

   990                               TaskListener taskListener) throws IOException {

   991         roundNumber++;

   992         List<ClassSymbol> noTopLevelClasses = List.nil();

   993         Set<TypeElement> noAnnotations =  Collections.emptySet();

   994         printRoundInfo(xout, roundNumber, noTopLevelClasses, noAnnotations, true);

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

   997         RoundEnvironment renv = new JavacRoundEnvironment(true,

   998                                                           errorStatus,

   999                                                           emptyRootElements,

  1000                                                           JavacProcessingEnvironment.this);

  1001         if (taskListener != null)

  1002             taskListener.started(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));

  1004         try {

  1005             discoveredProcs.iterator().runContributingProcs(renv);

  1006         } finally {

  1007             if (taskListener != null)

  1008                 taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));

  1009         }

  1011         // Add any sources generated during the last round to the set

  1012         // of files to be compiled.

  1013         if (moreToDo()) {

  1014             List<JCCompilationUnit> parsedFiles = sourcesToParsedFiles(compiler);

  1015             roots = cleanTrees(roots).appendList(parsedFiles);

  1016         }

  1018         return roots;

  1019     }

  1021     private void updateProcessingState(Context currentContext, boolean lastRound) {

  1022         filer.newRound(currentContext, lastRound);

  1023         messager.newRound(currentContext);

  1025         elementUtils.setContext(currentContext);

  1026         typeUtils.setContext(currentContext);

  1027     }

  1029     private void warnIfUnmatchedOptions() {

  1030         if (!unmatchedProcessorOptions.isEmpty()) {

  1031             log.warning("proc.unmatched.processor.options", unmatchedProcessorOptions.toString());

  1032         }

  1033     }

  1035     private void printRoundInfo(PrintWriter xout,

  1036                                 int roundNumber,

  1037                                 List<ClassSymbol> topLevelClasses,

  1038                                 Set<TypeElement> annotationsPresent,

  1039                                 boolean lastRound) {

  1040         if (printRounds || verbose) {

  1041             xout.println(Log.getLocalizedString("x.print.rounds",

  1042                                                 roundNumber,

  1043                                                 "{" + topLevelClasses.toString(", ") + "}",

  1044                                                 annotationsPresent,

  1045                                                 lastRound));

  1046         }

  1047     }

  1049     private List<ClassSymbol> enterNewClassFiles(Context currentContext) {

  1050         ClassReader reader = ClassReader.instance(currentContext);

  1051         Names names = Names.instance(currentContext);

  1052         List<ClassSymbol> list = List.nil();

  1054         for (Map.Entry<String,JavaFileObject> entry : filer.getGeneratedClasses().entrySet()) {

  1055             Name name = names.fromString(entry.getKey());

  1056             JavaFileObject file = entry.getValue();

  1057             if (file.getKind() != JavaFileObject.Kind.CLASS)

  1058                 throw new AssertionError(file);

  1059             ClassSymbol cs;

  1060             if (isPkgInfo(file, JavaFileObject.Kind.CLASS)) {

  1061                 Name packageName = Convert.packagePart(name);

  1062                 PackageSymbol p = reader.enterPackage(packageName);

  1063                 if (p.package_info == null)

  1064                     p.package_info = reader.enterClass(Convert.shortName(name), p);

  1065                 cs = p.package_info;

  1066                 if (cs.classfile == null)

  1067                     cs.classfile = file;

  1068             } else

  1069                 cs = reader.enterClass(name, file);

  1070             list = list.prepend(cs);

  1071         }

  1072         return list.reverse();

  1073     }

  1075     /**

  1076      * Free resources related to annotation processing.

  1077      */

  1078     public void close() throws IOException {

  1079         filer.close();

  1080         if (discoveredProcs != null) // Make calling close idempotent

  1081             discoveredProcs.close();

  1082         discoveredProcs = null;

  1083         if (processorClassLoader != null && processorClassLoader instanceof Closeable)

  1084             ((Closeable) processorClassLoader).close();

  1085     }

  1087     private List<ClassSymbol> getTopLevelClasses(List<? extends JCCompilationUnit> units) {

  1088         List<ClassSymbol> classes = List.nil();

  1089         for (JCCompilationUnit unit : units) {

  1090             for (JCTree node : unit.defs) {

  1091                 if (node.getTag() == JCTree.CLASSDEF) {

  1092                     classes = classes.prepend(((JCClassDecl) node).sym);

  1093                 }

  1094             }

  1095         }

  1096         return classes.reverse();

  1097     }

  1099     private List<ClassSymbol> getTopLevelClassesFromClasses(List<? extends ClassSymbol> syms) {

  1100         List<ClassSymbol> classes = List.nil();

  1101         for (ClassSymbol sym : syms) {

  1102             if (!isPkgInfo(sym)) {

  1103                 classes = classes.prepend(sym);

  1104             }

  1105         }

  1106         return classes.reverse();

  1107     }

  1109     private List<PackageSymbol> getPackageInfoFiles(List<? extends JCCompilationUnit> units) {

  1110         List<PackageSymbol> packages = List.nil();

  1111         for (JCCompilationUnit unit : units) {

  1112             if (isPkgInfo(unit.sourcefile, JavaFileObject.Kind.SOURCE)) {

  1113                 packages = packages.prepend(unit.packge);

  1114             }

  1115         }

  1116         return packages.reverse();

  1117     }

  1119     private List<PackageSymbol> getPackageInfoFilesFromClasses(List<? extends ClassSymbol> syms) {

  1120         List<PackageSymbol> packages = List.nil();

  1121         for (ClassSymbol sym : syms) {

  1122             if (isPkgInfo(sym)) {

  1123                 packages = packages.prepend((PackageSymbol) sym.owner);

  1124             }

  1125         }

  1126         return packages.reverse();

  1127     }

  1129     private boolean isPkgInfo(JavaFileObject fo, JavaFileObject.Kind kind) {

  1130         return fo.isNameCompatible("package-info", kind);

  1131     }

  1133     private boolean isPkgInfo(ClassSymbol sym) {

  1134         return isPkgInfo(sym.classfile, JavaFileObject.Kind.CLASS) && (sym.packge().package_info == sym);

  1135     }

  1137     private Context contextForNextRound(Context context, boolean shareNames)

  1138         throws IOException

  1139     {

  1140         Context next = new Context();

  1142         Options options = Options.instance(context);

  1143         assert options != null;

  1144         next.put(Options.optionsKey, options);

  1146         PrintWriter out = context.get(Log.outKey);

  1147         assert out != null;

  1148         next.put(Log.outKey, out);

  1150         if (shareNames) {

  1151             Names names = Names.instance(context);

  1152             assert names != null;

  1153             next.put(Names.namesKey, names);

  1154         }

  1156         DiagnosticListener<?> dl = context.get(DiagnosticListener.class);

  1157         if (dl != null)

  1158             next.put(DiagnosticListener.class, dl);

  1160         TaskListener tl = context.get(TaskListener.class);

  1161         if (tl != null)

  1162             next.put(TaskListener.class, tl);

  1164         JavaFileManager jfm = context.get(JavaFileManager.class);

  1165         assert jfm != null;

  1166         next.put(JavaFileManager.class, jfm);

  1167         if (jfm instanceof JavacFileManager) {

  1168             ((JavacFileManager)jfm).setContext(next);

  1169         }

  1171         Names names = Names.instance(context);

  1172         assert names != null;

  1173         next.put(Names.namesKey, names);

  1175         Keywords keywords = Keywords.instance(context);

  1176         assert(keywords != null);

  1177         next.put(Keywords.keywordsKey, keywords);

  1179         JavaCompiler oldCompiler = JavaCompiler.instance(context);

  1180         JavaCompiler nextCompiler = JavaCompiler.instance(next);

  1181         nextCompiler.initRound(oldCompiler);

  1183         JavacTaskImpl task = context.get(JavacTaskImpl.class);

  1184         if (task != null) {

  1185             next.put(JavacTaskImpl.class, task);

  1186             task.updateContext(next);

  1187         }

  1189         context.clear();

  1190         return next;

  1191     }

  1193     /*

  1194      * Called retroactively to determine if a class loader was required,

  1195      * after we have failed to create one.

  1196      */

  1197     private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {

  1198         if (procNames != null)

  1199             return true;

  1201         String procPath;

  1202         URL[] urls = new URL[1];

  1203         for(File pathElement : workingpath) {

  1204             try {

  1205                 urls[0] = pathElement.toURI().toURL();

  1206                 if (ServiceProxy.hasService(Processor.class, urls))

  1207                     return true;

  1208             } catch (MalformedURLException ex) {

  1209                 throw new AssertionError(ex);

  1210             }

  1211             catch (ServiceProxy.ServiceConfigurationError e) {

  1212                 log.error("proc.bad.config.file", e.getLocalizedMessage());

  1213                 return true;

  1214             }

  1215         }

  1217         return false;

  1218     }

  1220     private static <T extends JCTree> List<T> cleanTrees(List<T> nodes) {

  1221         for (T node : nodes)

  1222             treeCleaner.scan(node);

  1223         return nodes;

  1224     }

  1226     private static TreeScanner treeCleaner = new TreeScanner() {

  1227             public void scan(JCTree node) {

  1228                 super.scan(node);

  1229                 if (node != null)

  1230                     node.type = null;

  1231             }

  1232             public void visitTopLevel(JCCompilationUnit node) {

  1233                 node.packge = null;

  1234                 super.visitTopLevel(node);

  1235             }

  1236             public void visitClassDef(JCClassDecl node) {

  1237                 node.sym = null;

  1238                 super.visitClassDef(node);

  1239             }

  1240             public void visitMethodDef(JCMethodDecl node) {

  1241                 node.sym = null;

  1242                 super.visitMethodDef(node);

  1243             }

  1244             public void visitVarDef(JCVariableDecl node) {

  1245                 node.sym = null;

  1246                 super.visitVarDef(node);

  1247             }

  1248             public void visitNewClass(JCNewClass node) {

  1249                 node.constructor = null;

  1250                 super.visitNewClass(node);

  1251             }

  1252             public void visitAssignop(JCAssignOp node) {

  1253                 node.operator = null;

  1254                 super.visitAssignop(node);

  1255             }

  1256             public void visitUnary(JCUnary node) {

  1257                 node.operator = null;

  1258                 super.visitUnary(node);

  1259             }

  1260             public void visitBinary(JCBinary node) {

  1261                 node.operator = null;

  1262                 super.visitBinary(node);

  1263             }

  1264             public void visitSelect(JCFieldAccess node) {

  1265                 node.sym = null;

  1266                 super.visitSelect(node);

  1267             }

  1268             public void visitIdent(JCIdent node) {

  1269                 node.sym = null;

  1270                 super.visitIdent(node);

  1271             }

  1272         };

  1275     private boolean moreToDo() {

  1276         return filer.newFiles();

  1277     }

  1279     /**

  1280      * {@inheritdoc}

  1281      *

  1282      * Command line options suitable for presenting to annotation

  1283      * processors.  "-Afoo=bar" should be "-Afoo" => "bar".

  1284      */

  1285     public Map<String,String> getOptions() {

  1286         return processorOptions;

  1287     }

  1289     public Messager getMessager() {

  1290         return messager;

  1291     }

  1293     public Filer getFiler() {

  1294         return filer;

  1295     }

  1297     public JavacElements getElementUtils() {

  1298         return elementUtils;

  1299     }

  1301     public JavacTypes getTypeUtils() {

  1302         return typeUtils;

  1303     }

  1305     public SourceVersion getSourceVersion() {

  1306         return Source.toSourceVersion(source);

  1307     }

  1309     public Locale getLocale() {

  1310         return messages.getCurrentLocale();

  1311     }

  1313     public Set<Symbol.PackageSymbol> getSpecifiedPackages() {

  1314         return specifiedPackages;

  1315     }

  1317     private static final Pattern allMatches = Pattern.compile(".*");

  1318     public static final Pattern noMatches  = Pattern.compile("(\\P{all})+");

  1320     /**

  1321      * Convert import-style string for supported annotations into a

  1322      * regex matching that string.  If the string is a valid

  1323      * import-style string, return a regex that won't match anything.

  1324      */

  1325     private static Pattern importStringToPattern(String s, Processor p, Log log) {

  1326         if (isValidImportString(s)) {

  1327             return validImportStringToPattern(s);

  1328         } else {

  1329             log.warning("proc.malformed.supported.string", s, p.getClass().getName());

  1330             return noMatches; // won't match any valid identifier

  1331         }

  1332     }

  1334     /**

  1335      * Return true if the argument string is a valid import-style

  1336      * string specifying claimed annotations; return false otherwise.

  1337      */

  1338     public static boolean isValidImportString(String s) {

  1339         if (s.equals("*"))

  1340             return true;

  1342         boolean valid = true;

  1343         String t = s;

  1344         int index = t.indexOf('*');

  1346         if (index != -1) {

  1347             // '*' must be last character...

  1348             if (index == t.length() -1) {

  1349                 // ... any and preceding character must be '.'

  1350                 if ( index-1 >= 0 ) {

  1351                     valid = t.charAt(index-1) == '.';

  1352                     // Strip off ".*$" for identifier checks

  1353                     t = t.substring(0, t.length()-2);

  1354                 }

  1355             } else

  1356                 return false;

  1357         }

  1359         // Verify string is off the form (javaId \.)+ or javaId

  1360         if (valid) {

  1361             String[] javaIds = t.split("\\.", t.length()+2);

  1362             for(String javaId: javaIds)

  1363                 valid &= SourceVersion.isIdentifier(javaId);

  1364         }

  1365         return valid;

  1366     }

  1368     public static Pattern validImportStringToPattern(String s) {

  1369         if (s.equals("*")) {

  1370             return allMatches;

  1371         } else {

  1372             String s_prime = s.replace(".", "\\.");

  1374             if (s_prime.endsWith("*")) {

  1375                 s_prime =  s_prime.substring(0, s_prime.length() - 1) + ".+";

  1376             }

  1378             return Pattern.compile(s_prime);

  1379         }

  1380     }

  1382     /**

  1383      * For internal use only.  This method will be

  1384      * removed without warning.

  1385      */

  1386     public Context getContext() {

  1387         return context;

  1388     }

  1390     public String toString() {

  1391         return "javac ProcessingEnvironment";

  1392     }

  1394     public static boolean isValidOptionName(String optionName) {

  1395         for(String s : optionName.split("\\.", -1)) {

  1396             if (!SourceVersion.isIdentifier(s))

  1397                 return false;

  1398         }

  1399         return true;

  1400     }

  1401 }

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

src/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java@f2fdd52e4e87

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