--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/processing/JavacProcessingEnvironment.java Sun Aug 17 15:52:32 2014 +0100
@@ -0,0 +1,1515 @@
+/*
+ * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.tools.javac.processing;
+
+import java.io.Closeable;
+import java.io.File;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.*;
+import java.util.regex.*;
+
+import javax.annotation.processing.*;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.*;
+import javax.lang.model.util.*;
+import javax.tools.JavaFileManager;
+import javax.tools.JavaFileObject;
+import javax.tools.StandardJavaFileManager;
+import static javax.tools.StandardLocation.*;
+
+import com.sun.source.util.TaskEvent;
+import com.sun.tools.javac.api.MultiTaskListener;
+import com.sun.tools.javac.code.*;
+import com.sun.tools.javac.code.Symbol.*;
+import com.sun.tools.javac.code.Type.ClassType;
+import com.sun.tools.javac.code.Types;
+import com.sun.tools.javac.comp.AttrContext;
+import com.sun.tools.javac.comp.Check;
+import com.sun.tools.javac.comp.Enter;
+import com.sun.tools.javac.comp.Env;
+import com.sun.tools.javac.file.JavacFileManager;
+import com.sun.tools.javac.main.JavaCompiler;
+import com.sun.tools.javac.model.JavacElements;
+import com.sun.tools.javac.model.JavacTypes;
+import com.sun.tools.javac.tree.*;
+import com.sun.tools.javac.tree.JCTree.*;
+import com.sun.tools.javac.util.Abort;
+import com.sun.tools.javac.util.Assert;
+import com.sun.tools.javac.util.ClientCodeException;
+import com.sun.tools.javac.util.Context;
+import com.sun.tools.javac.util.Convert;
+import com.sun.tools.javac.util.JCDiagnostic;
+import com.sun.tools.javac.util.JavacMessages;
+import com.sun.tools.javac.util.List;
+import com.sun.tools.javac.util.Log;
+import com.sun.tools.javac.util.Name;
+import com.sun.tools.javac.util.Names;
+import com.sun.tools.javac.util.Options;
+import com.sun.tools.javac.util.ServiceLoader;
+import static com.sun.tools.javac.code.Lint.LintCategory.PROCESSING;
+import static com.sun.tools.javac.main.Option.*;
+import static com.sun.tools.javac.comp.CompileStates.CompileState;
+import static com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag.*;
+
+/**
+ * Objects of this class hold and manage the state needed to support
+ * annotation processing.
+ *
+ * <p><b>This is NOT part of any supported API.
+ * If you write code that depends on this, you do so at your own risk.
+ * This code and its internal interfaces are subject to change or
+ * deletion without notice.</b>
+ */
+public class JavacProcessingEnvironment implements ProcessingEnvironment, Closeable {
+ private final Options options;
+
+ private final boolean printProcessorInfo;
+ private final boolean printRounds;
+ private final boolean verbose;
+ private final boolean lint;
+ private final boolean fatalErrors;
+ private final boolean werror;
+ private final boolean showResolveErrors;
+
+ private final JavacFiler filer;
+ private final JavacMessager messager;
+ private final JavacElements elementUtils;
+ private final JavacTypes typeUtils;
+ private final Types types;
+ private final JavaCompiler compiler;
+
+ /**
+ * Holds relevant state history of which processors have been
+ * used.
+ */
+ private DiscoveredProcessors discoveredProcs;
+
+ /**
+ * Map of processor-specific options.
+ */
+ private final Map<String, String> processorOptions;
+
+ /**
+ */
+ private final Set<String> unmatchedProcessorOptions;
+
+ /**
+ * Annotations implicitly processed and claimed by javac.
+ */
+ private final Set<String> platformAnnotations;
+
+ /**
+ * Set of packages given on command line.
+ */
+ private Set<PackageSymbol> specifiedPackages = Collections.emptySet();
+
+ /** The log to be used for error reporting.
+ */
+ final Log log;
+
+ /** Diagnostic factory.
+ */
+ JCDiagnostic.Factory diags;
+
+ /**
+ * Source level of the compile.
+ */
+ Source source;
+
+ private ClassLoader processorClassLoader;
+ private SecurityException processorClassLoaderException;
+
+ /**
+ * JavacMessages object used for localization
+ */
+ private JavacMessages messages;
+
+ private MultiTaskListener taskListener;
+ private final Symtab symtab;
+ private final Names names;
+ private final Enter enter;
+ private final Completer initialCompleter;
+ private final Check chk;
+
+ private final Context context;
+
+ /** Get the JavacProcessingEnvironment instance for this context. */
+ public static JavacProcessingEnvironment instance(Context context) {
+ JavacProcessingEnvironment instance = context.get(JavacProcessingEnvironment.class);
+ if (instance == null)
+ instance = new JavacProcessingEnvironment(context);
+ return instance;
+ }
+
+ protected JavacProcessingEnvironment(Context context) {
+ this.context = context;
+ context.put(JavacProcessingEnvironment.class, this);
+ log = Log.instance(context);
+ source = Source.instance(context);
+ diags = JCDiagnostic.Factory.instance(context);
+ options = Options.instance(context);
+ printProcessorInfo = options.isSet(XPRINTPROCESSORINFO);
+ printRounds = options.isSet(XPRINTROUNDS);
+ verbose = options.isSet(VERBOSE);
+ lint = Lint.instance(context).isEnabled(PROCESSING);
+ compiler = JavaCompiler.instance(context);
+ if (options.isSet(PROC, "only") || options.isSet(XPRINT)) {
+ compiler.shouldStopPolicyIfNoError = CompileState.PROCESS;
+ }
+ fatalErrors = options.isSet("fatalEnterError");
+ showResolveErrors = options.isSet("showResolveErrors");
+ werror = options.isSet(WERROR);
+ platformAnnotations = initPlatformAnnotations();
+
+ // Initialize services before any processors are initialized
+ // in case processors use them.
+ filer = new JavacFiler(context);
+ messager = new JavacMessager(context, this);
+ elementUtils = JavacElements.instance(context);
+ typeUtils = JavacTypes.instance(context);
+ types = Types.instance(context);
+ processorOptions = initProcessorOptions();
+ unmatchedProcessorOptions = initUnmatchedProcessorOptions();
+ messages = JavacMessages.instance(context);
+ taskListener = MultiTaskListener.instance(context);
+ symtab = Symtab.instance(context);
+ names = Names.instance(context);
+ enter = Enter.instance(context);
+ initialCompleter = ClassFinder.instance(context).getCompleter();
+ chk = Check.instance(context);
+ initProcessorClassLoader();
+ }
+
+ public void setProcessors(Iterable<? extends Processor> processors) {
+ Assert.checkNull(discoveredProcs);
+ initProcessorIterator(processors);
+ }
+
+ private Set<String> initPlatformAnnotations() {
+ Set<String> platformAnnotations = new HashSet<>();
+ platformAnnotations.add("java.lang.Deprecated");
+ platformAnnotations.add("java.lang.Override");
+ platformAnnotations.add("java.lang.SuppressWarnings");
+ platformAnnotations.add("java.lang.annotation.Documented");
+ platformAnnotations.add("java.lang.annotation.Inherited");
+ platformAnnotations.add("java.lang.annotation.Retention");
+ platformAnnotations.add("java.lang.annotation.Target");
+ return Collections.unmodifiableSet(platformAnnotations);
+ }
+
+ private void initProcessorClassLoader() {
+ JavaFileManager fileManager = context.get(JavaFileManager.class);
+ try {
+ // If processorpath is not explicitly set, use the classpath.
+ processorClassLoader = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)
+ ? fileManager.getClassLoader(ANNOTATION_PROCESSOR_PATH)
+ : fileManager.getClassLoader(CLASS_PATH);
+
+ if (processorClassLoader != null && processorClassLoader instanceof Closeable) {
+ compiler.closeables = compiler.closeables.prepend((Closeable) processorClassLoader);
+ }
+ } catch (SecurityException e) {
+ processorClassLoaderException = e;
+ }
+ }
+
+ private void initProcessorIterator(Iterable<? extends Processor> processors) {
+ Iterator<? extends Processor> processorIterator;
+
+ if (options.isSet(XPRINT)) {
+ try {
+ Processor processor = PrintingProcessor.class.newInstance();
+ processorIterator = List.of(processor).iterator();
+ } catch (Throwable t) {
+ AssertionError assertError =
+ new AssertionError("Problem instantiating PrintingProcessor.");
+ assertError.initCause(t);
+ throw assertError;
+ }
+ } else if (processors != null) {
+ processorIterator = processors.iterator();
+ } else {
+ String processorNames = options.get(PROCESSOR);
+ if (processorClassLoaderException == null) {
+ /*
+ * If the "-processor" option is used, search the appropriate
+ * path for the named class. Otherwise, use a service
+ * provider mechanism to create the processor iterator.
+ */
+ if (processorNames != null) {
+ processorIterator = new NameProcessIterator(processorNames, processorClassLoader, log);
+ } else {
+ processorIterator = new ServiceIterator(processorClassLoader, log);
+ }
+ } else {
+ /*
+ * A security exception will occur if we can't create a classloader.
+ * Ignore the exception if, with hindsight, we didn't need it anyway
+ * (i.e. no processor was specified either explicitly, or implicitly,
+ * in service configuration file.) Otherwise, we cannot continue.
+ */
+ processorIterator = handleServiceLoaderUnavailability("proc.cant.create.loader",
+ processorClassLoaderException);
+ }
+ }
+ discoveredProcs = new DiscoveredProcessors(processorIterator);
+ }
+
+ /**
+ * Returns an empty processor iterator if no processors are on the
+ * relevant path, otherwise if processors are present, logs an
+ * error. Called when a service loader is unavailable for some
+ * reason, either because a service loader class cannot be found
+ * or because a security policy prevents class loaders from being
+ * created.
+ *
+ * @param key The resource key to use to log an error message
+ * @param e If non-null, pass this exception to Abort
+ */
+ private Iterator<Processor> handleServiceLoaderUnavailability(String key, Exception e) {
+ JavaFileManager fileManager = context.get(JavaFileManager.class);
+
+ if (fileManager instanceof JavacFileManager) {
+ StandardJavaFileManager standardFileManager = (JavacFileManager) fileManager;
+ Iterable<? extends File> workingPath = fileManager.hasLocation(ANNOTATION_PROCESSOR_PATH)
+ ? standardFileManager.getLocation(ANNOTATION_PROCESSOR_PATH)
+ : standardFileManager.getLocation(CLASS_PATH);
+
+ if (needClassLoader(options.get(PROCESSOR), workingPath) )
+ handleException(key, e);
+
+ } else {
+ handleException(key, e);
+ }
+
+ java.util.List<Processor> pl = Collections.emptyList();
+ return pl.iterator();
+ }
+
+ /**
+ * Handle a security exception thrown during initializing the
+ * Processor iterator.
+ */
+ private void handleException(String key, Exception e) {
+ if (e != null) {
+ log.error(key, e.getLocalizedMessage());
+ throw new Abort(e);
+ } else {
+ log.error(key);
+ throw new Abort();
+ }
+ }
+
+ /**
+ * Use a service loader appropriate for the platform to provide an
+ * iterator over annotations processors; fails if a loader is
+ * needed but unavailable.
+ */
+ private class ServiceIterator implements Iterator<Processor> {
+ private Iterator<Processor> iterator;
+ private Log log;
+ private ServiceLoader<Processor> loader;
+
+ ServiceIterator(ClassLoader classLoader, Log log) {
+ this.log = log;
+ try {
+ try {
+ loader = ServiceLoader.load(Processor.class, classLoader);
+ this.iterator = loader.iterator();
+ } catch (Exception e) {
+ // Fail softly if a loader is not actually needed.
+ this.iterator = handleServiceLoaderUnavailability("proc.no.service", null);
+ }
+ } catch (Throwable t) {
+ log.error("proc.service.problem");
+ throw new Abort(t);
+ }
+ }
+
+ public boolean hasNext() {
+ try {
+ return iterator.hasNext();
+ } catch(ServiceConfigurationError sce) {
+ log.error("proc.bad.config.file", sce.getLocalizedMessage());
+ throw new Abort(sce);
+ } catch (Throwable t) {
+ throw new Abort(t);
+ }
+ }
+
+ public Processor next() {
+ try {
+ return iterator.next();
+ } catch (ServiceConfigurationError sce) {
+ log.error("proc.bad.config.file", sce.getLocalizedMessage());
+ throw new Abort(sce);
+ } catch (Throwable t) {
+ throw new Abort(t);
+ }
+ }
+
+ public void remove() {
+ throw new UnsupportedOperationException();
+ }
+
+ public void close() {
+ if (loader != null) {
+ try {
+ loader.reload();
+ } catch(Exception e) {
+ // Ignore problems during a call to reload.
+ }
+ }
+ }
+ }
+
+
+ private static class NameProcessIterator implements Iterator<Processor> {
+ Processor nextProc = null;
+ Iterator<String> names;
+ ClassLoader processorCL;
+ Log log;
+
+ NameProcessIterator(String names, ClassLoader processorCL, Log log) {
+ this.names = Arrays.asList(names.split(",")).iterator();
+ this.processorCL = processorCL;
+ this.log = log;
+ }
+
+ public boolean hasNext() {
+ if (nextProc != null)
+ return true;
+ else {
+ if (!names.hasNext())
+ return false;
+ else {
+ String processorName = names.next();
+
+ Processor processor;
+ try {
+ try {
+ processor =
+ (Processor) (processorCL.loadClass(processorName).newInstance());
+ } catch (ClassNotFoundException cnfe) {
+ log.error("proc.processor.not.found", processorName);
+ return false;
+ } catch (ClassCastException cce) {
+ log.error("proc.processor.wrong.type", processorName);
+ return false;
+ } catch (Exception e ) {
+ log.error("proc.processor.cant.instantiate", processorName);
+ return false;
+ }
+ } catch(ClientCodeException e) {
+ throw e;
+ } catch(Throwable t) {
+ throw new AnnotationProcessingError(t);
+ }
+ nextProc = processor;
+ return true;
+ }
+
+ }
+ }
+
+ public Processor next() {
+ if (hasNext()) {
+ Processor p = nextProc;
+ nextProc = null;
+ return p;
+ } else
+ throw new NoSuchElementException();
+ }
+
+ public void remove () {
+ throw new UnsupportedOperationException();
+ }
+ }
+
+ public boolean atLeastOneProcessor() {
+ return discoveredProcs.iterator().hasNext();
+ }
+
+ private Map<String, String> initProcessorOptions() {
+ Set<String> keySet = options.keySet();
+ Map<String, String> tempOptions = new LinkedHashMap<>();
+
+ for(String key : keySet) {
+ if (key.startsWith("-A") && key.length() > 2) {
+ int sepIndex = key.indexOf('=');
+ String candidateKey = null;
+ String candidateValue = null;
+
+ if (sepIndex == -1)
+ candidateKey = key.substring(2);
+ else if (sepIndex >= 3) {
+ candidateKey = key.substring(2, sepIndex);
+ candidateValue = (sepIndex < key.length()-1)?
+ key.substring(sepIndex+1) : null;
+ }
+ tempOptions.put(candidateKey, candidateValue);
+ }
+ }
+
+ return Collections.unmodifiableMap(tempOptions);
+ }
+
+ private Set<String> initUnmatchedProcessorOptions() {
+ Set<String> unmatchedProcessorOptions = new HashSet<>();
+ unmatchedProcessorOptions.addAll(processorOptions.keySet());
+ return unmatchedProcessorOptions;
+ }
+
+ /**
+ * State about how a processor has been used by the tool. If a
+ * processor has been used on a prior round, its process method is
+ * called on all subsequent rounds, perhaps with an empty set of
+ * annotations to process. The {@code annotationSupported} method
+ * caches the supported annotation information from the first (and
+ * only) getSupportedAnnotationTypes call to the processor.
+ */
+ static class ProcessorState {
+ public Processor processor;
+ public boolean contributed;
+ private ArrayList<Pattern> supportedAnnotationPatterns;
+ private ArrayList<String> supportedOptionNames;
+
+ ProcessorState(Processor p, Log log, Source source, ProcessingEnvironment env) {
+ processor = p;
+ contributed = false;
+
+ try {
+ processor.init(env);
+
+ checkSourceVersionCompatibility(source, log);
+
+ supportedAnnotationPatterns = new ArrayList<>();
+ for (String importString : processor.getSupportedAnnotationTypes()) {
+ supportedAnnotationPatterns.add(importStringToPattern(importString,
+ processor,
+ log));
+ }
+
+ supportedOptionNames = new ArrayList<>();
+ for (String optionName : processor.getSupportedOptions() ) {
+ if (checkOptionName(optionName, log))
+ supportedOptionNames.add(optionName);
+ }
+
+ } catch (ClientCodeException e) {
+ throw e;
+ } catch (Throwable t) {
+ throw new AnnotationProcessingError(t);
+ }
+ }
+
+ /**
+ * Checks whether or not a processor's source version is
+ * compatible with the compilation source version. The
+ * processor's source version needs to be greater than or
+ * equal to the source version of the compile.
+ */
+ private void checkSourceVersionCompatibility(Source source, Log log) {
+ SourceVersion procSourceVersion = processor.getSupportedSourceVersion();
+
+ if (procSourceVersion.compareTo(Source.toSourceVersion(source)) < 0 ) {
+ log.warning("proc.processor.incompatible.source.version",
+ procSourceVersion,
+ processor.getClass().getName(),
+ source.name);
+ }
+ }
+
+ private boolean checkOptionName(String optionName, Log log) {
+ boolean valid = isValidOptionName(optionName);
+ if (!valid)
+ log.error("proc.processor.bad.option.name",
+ optionName,
+ processor.getClass().getName());
+ return valid;
+ }
+
+ public boolean annotationSupported(String annotationName) {
+ for(Pattern p: supportedAnnotationPatterns) {
+ if (p.matcher(annotationName).matches())
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Remove options that are matched by this processor.
+ */
+ public void removeSupportedOptions(Set<String> unmatchedProcessorOptions) {
+ unmatchedProcessorOptions.removeAll(supportedOptionNames);
+ }
+ }
+
+ // TODO: These two classes can probably be rewritten better...
+ /**
+ * This class holds information about the processors that have
+ * been discoverd so far as well as the means to discover more, if
+ * necessary. A single iterator should be used per round of
+ * annotation processing. The iterator first visits already
+ * discovered processors then fails over to the service provider
+ * mechanism if additional queries are made.
+ */
+ class DiscoveredProcessors implements Iterable<ProcessorState> {
+
+ class ProcessorStateIterator implements Iterator<ProcessorState> {
+ DiscoveredProcessors psi;
+ Iterator<ProcessorState> innerIter;
+ boolean onProcInterator;
+
+ ProcessorStateIterator(DiscoveredProcessors psi) {
+ this.psi = psi;
+ this.innerIter = psi.procStateList.iterator();
+ this.onProcInterator = false;
+ }
+
+ public ProcessorState next() {
+ if (!onProcInterator) {
+ if (innerIter.hasNext())
+ return innerIter.next();
+ else
+ onProcInterator = true;
+ }
+
+ if (psi.processorIterator.hasNext()) {
+ ProcessorState ps = new ProcessorState(psi.processorIterator.next(),
+ log, source, JavacProcessingEnvironment.this);
+ psi.procStateList.add(ps);
+ return ps;
+ } else
+ throw new NoSuchElementException();
+ }
+
+ public boolean hasNext() {
+ if (onProcInterator)
+ return psi.processorIterator.hasNext();
+ else
+ return innerIter.hasNext() || psi.processorIterator.hasNext();
+ }
+
+ public void remove () {
+ throw new UnsupportedOperationException();
+ }
+
+ /**
+ * Run all remaining processors on the procStateList that
+ * have not already run this round with an empty set of
+ * annotations.
+ */
+ public void runContributingProcs(RoundEnvironment re) {
+ if (!onProcInterator) {
+ Set<TypeElement> emptyTypeElements = Collections.emptySet();
+ while(innerIter.hasNext()) {
+ ProcessorState ps = innerIter.next();
+ if (ps.contributed)
+ callProcessor(ps.processor, emptyTypeElements, re);
+ }
+ }
+ }
+ }
+
+ Iterator<? extends Processor> processorIterator;
+ ArrayList<ProcessorState> procStateList;
+
+ public ProcessorStateIterator iterator() {
+ return new ProcessorStateIterator(this);
+ }
+
+ DiscoveredProcessors(Iterator<? extends Processor> processorIterator) {
+ this.processorIterator = processorIterator;
+ this.procStateList = new ArrayList<>();
+ }
+
+ /**
+ * Free jar files, etc. if using a service loader.
+ */
+ public void close() {
+ if (processorIterator != null &&
+ processorIterator instanceof ServiceIterator) {
+ ((ServiceIterator) processorIterator).close();
+ }
+ }
+ }
+
+ private void discoverAndRunProcs(Set<TypeElement> annotationsPresent,
+ List<ClassSymbol> topLevelClasses,
+ List<PackageSymbol> packageInfoFiles) {
+ Map<String, TypeElement> unmatchedAnnotations = new HashMap<>(annotationsPresent.size());
+
+ for(TypeElement a : annotationsPresent) {
+ unmatchedAnnotations.put(a.getQualifiedName().toString(),
+ a);
+ }
+
+ // Give "*" processors a chance to match
+ if (unmatchedAnnotations.size() == 0)
+ unmatchedAnnotations.put("", null);
+
+ DiscoveredProcessors.ProcessorStateIterator psi = discoveredProcs.iterator();
+ // TODO: Create proper argument values; need past round
+ // information to fill in this constructor. Note that the 1
+ // st round of processing could be the last round if there
+ // were parse errors on the initial source files; however, we
+ // are not doing processing in that case.
+
+ Set<Element> rootElements = new LinkedHashSet<>();
+ rootElements.addAll(topLevelClasses);
+ rootElements.addAll(packageInfoFiles);
+ rootElements = Collections.unmodifiableSet(rootElements);
+
+ RoundEnvironment renv = new JavacRoundEnvironment(false,
+ false,
+ rootElements,
+ JavacProcessingEnvironment.this);
+
+ while(unmatchedAnnotations.size() > 0 && psi.hasNext() ) {
+ ProcessorState ps = psi.next();
+ Set<String> matchedNames = new HashSet<>();
+ Set<TypeElement> typeElements = new LinkedHashSet<>();
+
+ for (Map.Entry<String, TypeElement> entry: unmatchedAnnotations.entrySet()) {
+ String unmatchedAnnotationName = entry.getKey();
+ if (ps.annotationSupported(unmatchedAnnotationName) ) {
+ matchedNames.add(unmatchedAnnotationName);
+ TypeElement te = entry.getValue();
+ if (te != null)
+ typeElements.add(te);
+ }
+ }
+
+ if (matchedNames.size() > 0 || ps.contributed) {
+ boolean processingResult = callProcessor(ps.processor, typeElements, renv);
+ ps.contributed = true;
+ ps.removeSupportedOptions(unmatchedProcessorOptions);
+
+ if (printProcessorInfo || verbose) {
+ log.printLines("x.print.processor.info",
+ ps.processor.getClass().getName(),
+ matchedNames.toString(),
+ processingResult);
+ }
+
+ if (processingResult) {
+ unmatchedAnnotations.keySet().removeAll(matchedNames);
+ }
+
+ }
+ }
+ unmatchedAnnotations.remove("");
+
+ if (lint && unmatchedAnnotations.size() > 0) {
+ // Remove annotations processed by javac
+ unmatchedAnnotations.keySet().removeAll(platformAnnotations);
+ if (unmatchedAnnotations.size() > 0) {
+ log.warning("proc.annotations.without.processors",
+ unmatchedAnnotations.keySet());
+ }
+ }
+
+ // Run contributing processors that haven't run yet
+ psi.runContributingProcs(renv);
+
+ // Debugging
+ if (options.isSet("displayFilerState"))
+ filer.displayState();
+ }
+
+ /**
+ * Computes the set of annotations on the symbol in question.
+ * Leave class public for external testing purposes.
+ */
+ public static class ComputeAnnotationSet extends
+ ElementScanner9<Set<TypeElement>, Set<TypeElement>> {
+ final Elements elements;
+
+ public ComputeAnnotationSet(Elements elements) {
+ super();
+ this.elements = elements;
+ }
+
+ @Override
+ public Set<TypeElement> visitPackage(PackageElement e, Set<TypeElement> p) {
+ // Don't scan enclosed elements of a package
+ return p;
+ }
+
+ @Override
+ public Set<TypeElement> visitType(TypeElement e, Set<TypeElement> p) {
+ // Type parameters are not considered to be enclosed by a type
+ scan(e.getTypeParameters(), p);
+ return super.visitType(e, p);
+ }
+
+ @Override
+ public Set<TypeElement> visitExecutable(ExecutableElement e, Set<TypeElement> p) {
+ // Type parameters are not considered to be enclosed by an executable
+ scan(e.getTypeParameters(), p);
+ return super.visitExecutable(e, p);
+ }
+
+ void addAnnotations(Element e, Set<TypeElement> p) {
+ for (AnnotationMirror annotationMirror :
+ elements.getAllAnnotationMirrors(e) ) {
+ Element e2 = annotationMirror.getAnnotationType().asElement();
+ p.add((TypeElement) e2);
+ }
+ }
+
+ @Override
+ public Set<TypeElement> scan(Element e, Set<TypeElement> p) {
+ addAnnotations(e, p);
+ return super.scan(e, p);
+ }
+ }
+
+ private boolean callProcessor(Processor proc,
+ Set<? extends TypeElement> tes,
+ RoundEnvironment renv) {
+ try {
+ return proc.process(tes, renv);
+ } catch (ClassFinder.BadClassFile ex) {
+ log.error("proc.cant.access.1", ex.sym, ex.getDetailValue());
+ return false;
+ } catch (CompletionFailure ex) {
+ StringWriter out = new StringWriter();
+ ex.printStackTrace(new PrintWriter(out));
+ log.error("proc.cant.access", ex.sym, ex.getDetailValue(), out.toString());
+ return false;
+ } catch (ClientCodeException e) {
+ throw e;
+ } catch (Throwable t) {
+ throw new AnnotationProcessingError(t);
+ }
+ }
+
+ /**
+ * Helper object for a single round of annotation processing.
+ */
+ class Round {
+ /** The round number. */
+ final int number;
+ /** The diagnostic handler for the round. */
+ final Log.DeferredDiagnosticHandler deferredDiagnosticHandler;
+
+ /** The ASTs to be compiled. */
+ List<JCCompilationUnit> roots;
+ /** The trees that need to be cleaned - includes roots and implicitly parsed trees. */
+ Set<JCCompilationUnit> treesToClean;
+ /** The classes to be compiler that have were generated. */
+ Map<String, JavaFileObject> genClassFiles;
+
+ /** The set of annotations to be processed this round. */
+ Set<TypeElement> annotationsPresent;
+ /** The set of top level classes to be processed this round. */
+ List<ClassSymbol> topLevelClasses;
+ /** The set of package-info files to be processed this round. */
+ List<PackageSymbol> packageInfoFiles;
+
+ /** Create a round (common code). */
+ private Round(int number, Set<JCCompilationUnit> treesToClean,
+ Log.DeferredDiagnosticHandler deferredDiagnosticHandler) {
+ this.number = number;
+
+ if (number == 1) {
+ Assert.checkNonNull(deferredDiagnosticHandler);
+ this.deferredDiagnosticHandler = deferredDiagnosticHandler;
+ } else {
+ this.deferredDiagnosticHandler = new Log.DeferredDiagnosticHandler(log);
+ compiler.setDeferredDiagnosticHandler(this.deferredDiagnosticHandler);
+ }
+
+ // the following will be populated as needed
+ topLevelClasses = List.nil();
+ packageInfoFiles = List.nil();
+ this.treesToClean = treesToClean;
+ }
+
+ /** Create the first round. */
+ Round(List<JCCompilationUnit> roots,
+ List<ClassSymbol> classSymbols,
+ Set<JCCompilationUnit> treesToClean,
+ Log.DeferredDiagnosticHandler deferredDiagnosticHandler) {
+ this(1, treesToClean, deferredDiagnosticHandler);
+ this.roots = roots;
+ genClassFiles = new HashMap<>();
+
+ // The reverse() in the following line is to maintain behavioural
+ // compatibility with the previous revision of the code. Strictly speaking,
+ // it should not be necessary, but a javah golden file test fails without it.
+ topLevelClasses =
+ getTopLevelClasses(roots).prependList(classSymbols.reverse());
+
+ packageInfoFiles = getPackageInfoFiles(roots);
+
+ findAnnotationsPresent();
+ }
+
+ /** Create a new round. */
+ private Round(Round prev,
+ Set<JavaFileObject> newSourceFiles, Map<String,JavaFileObject> newClassFiles) {
+ this(prev.number+1, prev.treesToClean, null);
+ prev.newRound();
+ this.genClassFiles = prev.genClassFiles;
+
+ List<JCCompilationUnit> parsedFiles = compiler.parseFiles(newSourceFiles);
+ roots = prev.roots.appendList(parsedFiles);
+
+ // Check for errors after parsing
+ if (unrecoverableError())
+ return;
+
+ enterClassFiles(genClassFiles);
+ List<ClassSymbol> newClasses = enterClassFiles(newClassFiles);
+ genClassFiles.putAll(newClassFiles);
+ enterTrees(roots);
+
+ if (unrecoverableError())
+ return;
+
+ topLevelClasses = join(
+ getTopLevelClasses(parsedFiles),
+ getTopLevelClassesFromClasses(newClasses));
+
+ packageInfoFiles = join(
+ getPackageInfoFiles(parsedFiles),
+ getPackageInfoFilesFromClasses(newClasses));
+
+ findAnnotationsPresent();
+ }
+
+ /** Create the next round to be used. */
+ Round next(Set<JavaFileObject> newSourceFiles, Map<String, JavaFileObject> newClassFiles) {
+ return new Round(this, newSourceFiles, newClassFiles);
+ }
+
+ /** Prepare the compiler for the final compilation. */
+ void finalCompiler() {
+ newRound();
+ }
+
+ /** Return the number of errors found so far in this round.
+ * This may include uncoverable errors, such as parse errors,
+ * and transient errors, such as missing symbols. */
+ int errorCount() {
+ return compiler.errorCount();
+ }
+
+ /** Return the number of warnings found so far in this round. */
+ int warningCount() {
+ return compiler.warningCount();
+ }
+
+ /** Return whether or not an unrecoverable error has occurred. */
+ boolean unrecoverableError() {
+ if (messager.errorRaised())
+ return true;
+
+ for (JCDiagnostic d: deferredDiagnosticHandler.getDiagnostics()) {
+ switch (d.getKind()) {
+ case WARNING:
+ if (werror)
+ return true;
+ break;
+
+ case ERROR:
+ if (fatalErrors || !d.isFlagSet(RECOVERABLE))
+ return true;
+ break;
+ }
+ }
+
+ return false;
+ }
+
+ /** Find the set of annotations present in the set of top level
+ * classes and package info files to be processed this round. */
+ void findAnnotationsPresent() {
+ ComputeAnnotationSet annotationComputer = new ComputeAnnotationSet(elementUtils);
+ // Use annotation processing to compute the set of annotations present
+ annotationsPresent = new LinkedHashSet<>();
+ for (ClassSymbol classSym : topLevelClasses)
+ annotationComputer.scan(classSym, annotationsPresent);
+ for (PackageSymbol pkgSym : packageInfoFiles)
+ annotationComputer.scan(pkgSym, annotationsPresent);
+ }
+
+ /** Enter a set of generated class files. */
+ private List<ClassSymbol> enterClassFiles(Map<String, JavaFileObject> classFiles) {
+ List<ClassSymbol> list = List.nil();
+
+ for (Map.Entry<String,JavaFileObject> entry : classFiles.entrySet()) {
+ Name name = names.fromString(entry.getKey());
+ JavaFileObject file = entry.getValue();
+ if (file.getKind() != JavaFileObject.Kind.CLASS)
+ throw new AssertionError(file);
+ ClassSymbol cs;
+ if (isPkgInfo(file, JavaFileObject.Kind.CLASS)) {
+ Name packageName = Convert.packagePart(name);
+ PackageSymbol p = symtab.enterPackage(packageName);
+ if (p.package_info == null)
+ p.package_info = symtab.enterClass(Convert.shortName(name), p);
+ cs = p.package_info;
+ cs.reset();
+ if (cs.classfile == null)
+ cs.classfile = file;
+ cs.completer = initialCompleter;
+ } else {
+ cs = symtab.enterClass(name);
+ cs.reset();
+ cs.classfile = file;
+ cs.completer = initialCompleter;
+ }
+ list = list.prepend(cs);
+ }
+ return list.reverse();
+ }
+
+ /** Enter a set of syntax trees. */
+ private void enterTrees(List<JCCompilationUnit> roots) {
+ compiler.enterTrees(roots);
+ }
+
+ /** Run a processing round. */
+ void run(boolean lastRound, boolean errorStatus) {
+ printRoundInfo(lastRound);
+
+ if (!taskListener.isEmpty())
+ taskListener.started(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));
+
+ try {
+ if (lastRound) {
+ filer.setLastRound(true);
+ Set<Element> emptyRootElements = Collections.emptySet(); // immutable
+ RoundEnvironment renv = new JavacRoundEnvironment(true,
+ errorStatus,
+ emptyRootElements,
+ JavacProcessingEnvironment.this);
+ discoveredProcs.iterator().runContributingProcs(renv);
+ } else {
+ discoverAndRunProcs(annotationsPresent, topLevelClasses, packageInfoFiles);
+ }
+ } catch (Throwable t) {
+ // we're specifically expecting Abort here, but if any Throwable
+ // comes by, we should flush all deferred diagnostics, rather than
+ // drop them on the ground.
+ deferredDiagnosticHandler.reportDeferredDiagnostics();
+ log.popDiagnosticHandler(deferredDiagnosticHandler);
+ compiler.setDeferredDiagnosticHandler(null);
+ throw t;
+ } finally {
+ if (!taskListener.isEmpty())
+ taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING_ROUND));
+ }
+ }
+
+ void showDiagnostics(boolean showAll) {
+ Set<JCDiagnostic.Kind> kinds = EnumSet.allOf(JCDiagnostic.Kind.class);
+ if (!showAll) {
+ // suppress errors, which are all presumed to be transient resolve errors
+ kinds.remove(JCDiagnostic.Kind.ERROR);
+ }
+ deferredDiagnosticHandler.reportDeferredDiagnostics(kinds);
+ log.popDiagnosticHandler(deferredDiagnosticHandler);
+ compiler.setDeferredDiagnosticHandler(null);
+ }
+
+ /** Print info about this round. */
+ private void printRoundInfo(boolean lastRound) {
+ if (printRounds || verbose) {
+ List<ClassSymbol> tlc = lastRound ? List.<ClassSymbol>nil() : topLevelClasses;
+ Set<TypeElement> ap = lastRound ? Collections.<TypeElement>emptySet() : annotationsPresent;
+ log.printLines("x.print.rounds",
+ number,
+ "{" + tlc.toString(", ") + "}",
+ ap,
+ lastRound);
+ }
+ }
+
+ /** Prepare for new round of annotation processing. Cleans trees, resets symbols, and
+ * asks selected services to prepare to a new round of annotation processing.
+ */
+ private void newRound() {
+ //ensure treesToClean contains all trees, including implicitly parsed ones
+ for (Env<AttrContext> env : enter.getEnvs()) {
+ treesToClean.add(env.toplevel);
+ }
+ for (JCCompilationUnit node : treesToClean) {
+ treeCleaner.scan(node);
+ }
+ chk.newRound();
+ enter.newRound();
+ filer.newRound();
+ messager.newRound();
+ compiler.newRound();
+ types.newRound();
+
+ boolean foundError = false;
+
+ for (ClassSymbol cs : symtab.classes.values()) {
+ if (cs.kind == Kinds.ERR) {
+ foundError = true;
+ break;
+ }
+ }
+
+ if (foundError) {
+ for (ClassSymbol cs : symtab.classes.values()) {
+ if (cs.classfile != null || cs.kind == Kinds.ERR) {
+ cs.reset();
+ cs.type = new ClassType(cs.type.getEnclosingType(),
+ null, cs, Type.noAnnotations);
+ if (cs.completer == null) {
+ cs.completer = initialCompleter;
+ }
+ }
+ }
+ }
+ }
+ }
+
+
+ // TODO: internal catch clauses?; catch and rethrow an annotation
+ // processing error
+ public boolean doProcessing(List<JCCompilationUnit> roots,
+ List<ClassSymbol> classSymbols,
+ Iterable<? extends PackageSymbol> pckSymbols,
+ Log.DeferredDiagnosticHandler deferredDiagnosticHandler) {
+ final Set<JCCompilationUnit> treesToClean =
+ Collections.newSetFromMap(new IdentityHashMap<JCCompilationUnit, Boolean>());
+
+ //fill already attributed implicit trees:
+ for (Env<AttrContext> env : enter.getEnvs()) {
+ treesToClean.add(env.toplevel);
+ }
+
+ Set<PackageSymbol> specifiedPackages = new LinkedHashSet<>();
+ for (PackageSymbol psym : pckSymbols)
+ specifiedPackages.add(psym);
+ this.specifiedPackages = Collections.unmodifiableSet(specifiedPackages);
+
+ Round round = new Round(roots, classSymbols, treesToClean, deferredDiagnosticHandler);
+
+ boolean errorStatus;
+ boolean moreToDo;
+ do {
+ // Run processors for round n
+ round.run(false, false);
+
+ // Processors for round n have run to completion.
+ // Check for errors and whether there is more work to do.
+ errorStatus = round.unrecoverableError();
+ moreToDo = moreToDo();
+
+ round.showDiagnostics(errorStatus || showResolveErrors);
+
+ // Set up next round.
+ // Copy mutable collections returned from filer.
+ round = round.next(
+ new LinkedHashSet<>(filer.getGeneratedSourceFileObjects()),
+ new LinkedHashMap<>(filer.getGeneratedClasses()));
+
+ // Check for errors during setup.
+ if (round.unrecoverableError())
+ errorStatus = true;
+
+ } while (moreToDo && !errorStatus);
+
+ // run last round
+ round.run(true, errorStatus);
+ round.showDiagnostics(true);
+
+ filer.warnIfUnclosedFiles();
+ warnIfUnmatchedOptions();
+
+ /*
+ * If an annotation processor raises an error in a round,
+ * that round runs to completion and one last round occurs.
+ * The last round may also occur because no more source or
+ * class files have been generated. Therefore, if an error
+ * was raised on either of the last *two* rounds, the compile
+ * should exit with a nonzero exit code. The current value of
+ * errorStatus holds whether or not an error was raised on the
+ * second to last round; errorRaised() gives the error status
+ * of the last round.
+ */
+ if (messager.errorRaised()
+ || werror && round.warningCount() > 0 && round.errorCount() > 0)
+ errorStatus = true;
+
+ Set<JavaFileObject> newSourceFiles =
+ new LinkedHashSet<>(filer.getGeneratedSourceFileObjects());
+ roots = round.roots;
+
+ errorStatus = errorStatus || (compiler.errorCount() > 0);
+
+ if (!errorStatus)
+ round.finalCompiler();
+
+ if (newSourceFiles.size() > 0)
+ roots = roots.appendList(compiler.parseFiles(newSourceFiles));
+
+ errorStatus = errorStatus || (compiler.errorCount() > 0);
+
+ // Free resources
+ this.close();
+
+ if (!taskListener.isEmpty())
+ taskListener.finished(new TaskEvent(TaskEvent.Kind.ANNOTATION_PROCESSING));
+
+ if (errorStatus) {
+ if (compiler.errorCount() == 0)
+ compiler.log.nerrors++;
+ return true;
+ }
+
+ compiler.enterTreesIfNeeded(roots);
+
+ return true;
+ }
+
+ private void warnIfUnmatchedOptions() {
+ if (!unmatchedProcessorOptions.isEmpty()) {
+ log.warning("proc.unmatched.processor.options", unmatchedProcessorOptions.toString());
+ }
+ }
+
+ /**
+ * Free resources related to annotation processing.
+ */
+ public void close() {
+ filer.close();
+ if (discoveredProcs != null) // Make calling close idempotent
+ discoveredProcs.close();
+ discoveredProcs = null;
+ }
+
+ private List<ClassSymbol> getTopLevelClasses(List<? extends JCCompilationUnit> units) {
+ List<ClassSymbol> classes = List.nil();
+ for (JCCompilationUnit unit : units) {
+ for (JCTree node : unit.defs) {
+ if (node.hasTag(JCTree.Tag.CLASSDEF)) {
+ ClassSymbol sym = ((JCClassDecl) node).sym;
+ Assert.checkNonNull(sym);
+ classes = classes.prepend(sym);
+ }
+ }
+ }
+ return classes.reverse();
+ }
+
+ private List<ClassSymbol> getTopLevelClassesFromClasses(List<? extends ClassSymbol> syms) {
+ List<ClassSymbol> classes = List.nil();
+ for (ClassSymbol sym : syms) {
+ if (!isPkgInfo(sym)) {
+ classes = classes.prepend(sym);
+ }
+ }
+ return classes.reverse();
+ }
+
+ private List<PackageSymbol> getPackageInfoFiles(List<? extends JCCompilationUnit> units) {
+ List<PackageSymbol> packages = List.nil();
+ for (JCCompilationUnit unit : units) {
+ if (isPkgInfo(unit.sourcefile, JavaFileObject.Kind.SOURCE)) {
+ packages = packages.prepend(unit.packge);
+ }
+ }
+ return packages.reverse();
+ }
+
+ private List<PackageSymbol> getPackageInfoFilesFromClasses(List<? extends ClassSymbol> syms) {
+ List<PackageSymbol> packages = List.nil();
+ for (ClassSymbol sym : syms) {
+ if (isPkgInfo(sym)) {
+ packages = packages.prepend((PackageSymbol) sym.owner);
+ }
+ }
+ return packages.reverse();
+ }
+
+ // avoid unchecked warning from use of varargs
+ private static <T> List<T> join(List<T> list1, List<T> list2) {
+ return list1.appendList(list2);
+ }
+
+ private boolean isPkgInfo(JavaFileObject fo, JavaFileObject.Kind kind) {
+ return fo.isNameCompatible("package-info", kind);
+ }
+
+ private boolean isPkgInfo(ClassSymbol sym) {
+ return isPkgInfo(sym.classfile, JavaFileObject.Kind.CLASS) && (sym.packge().package_info == sym);
+ }
+
+ /*
+ * Called retroactively to determine if a class loader was required,
+ * after we have failed to create one.
+ */
+ private boolean needClassLoader(String procNames, Iterable<? extends File> workingpath) {
+ if (procNames != null)
+ return true;
+
+ URL[] urls = new URL[1];
+ for(File pathElement : workingpath) {
+ try {
+ urls[0] = pathElement.toURI().toURL();
+ if (ServiceProxy.hasService(Processor.class, urls))
+ return true;
+ } catch (MalformedURLException ex) {
+ throw new AssertionError(ex);
+ }
+ catch (ServiceProxy.ServiceConfigurationError e) {
+ log.error("proc.bad.config.file", e.getLocalizedMessage());
+ return true;
+ }
+ }
+
+ return false;
+ }
+
+ class ImplicitCompleter implements Completer {
+
+ private final JCCompilationUnit topLevel;
+
+ public ImplicitCompleter(JCCompilationUnit topLevel) {
+ this.topLevel = topLevel;
+ }
+
+ @Override public void complete(Symbol sym) throws CompletionFailure {
+ compiler.readSourceFile(topLevel, (ClassSymbol) sym);
+ }
+ }
+
+ private final TreeScanner treeCleaner = new TreeScanner() {
+ public void scan(JCTree node) {
+ super.scan(node);
+ if (node != null)
+ node.type = null;
+ }
+ JCCompilationUnit topLevel;
+ public void visitTopLevel(JCCompilationUnit node) {
+ if (node.packge != null) {
+ if (node.packge.package_info != null) {
+ node.packge.package_info.reset();
+ }
+ node.packge.reset();
+ }
+ node.packge = null;
+ topLevel = node;
+ try {
+ super.visitTopLevel(node);
+ } finally {
+ topLevel = null;
+ }
+ }
+ public void visitClassDef(JCClassDecl node) {
+ if (node.sym != null) {
+ node.sym.reset();
+ node.sym.completer = new ImplicitCompleter(topLevel);
+ }
+ node.sym = null;
+ super.visitClassDef(node);
+ }
+ public void visitMethodDef(JCMethodDecl node) {
+ node.sym = null;
+ super.visitMethodDef(node);
+ }
+ public void visitVarDef(JCVariableDecl node) {
+ node.sym = null;
+ super.visitVarDef(node);
+ }
+ public void visitNewClass(JCNewClass node) {
+ node.constructor = null;
+ super.visitNewClass(node);
+ }
+ public void visitAssignop(JCAssignOp node) {
+ node.operator = null;
+ super.visitAssignop(node);
+ }
+ public void visitUnary(JCUnary node) {
+ node.operator = null;
+ super.visitUnary(node);
+ }
+ public void visitBinary(JCBinary node) {
+ node.operator = null;
+ super.visitBinary(node);
+ }
+ public void visitSelect(JCFieldAccess node) {
+ node.sym = null;
+ super.visitSelect(node);
+ }
+ public void visitIdent(JCIdent node) {
+ node.sym = null;
+ super.visitIdent(node);
+ }
+ public void visitAnnotation(JCAnnotation node) {
+ node.attribute = null;
+ super.visitAnnotation(node);
+ }
+ };
+
+
+ private boolean moreToDo() {
+ return filer.newFiles();
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * Command line options suitable for presenting to annotation
+ * processors.
+ * {@literal "-Afoo=bar"} should be {@literal "-Afoo" => "bar"}.
+ */
+ public Map<String,String> getOptions() {
+ return processorOptions;
+ }
+
+ public Messager getMessager() {
+ return messager;
+ }
+
+ public Filer getFiler() {
+ return filer;
+ }
+
+ public JavacElements getElementUtils() {
+ return elementUtils;
+ }
+
+ public JavacTypes getTypeUtils() {
+ return typeUtils;
+ }
+
+ public SourceVersion getSourceVersion() {
+ return Source.toSourceVersion(source);
+ }
+
+ public Locale getLocale() {
+ return messages.getCurrentLocale();
+ }
+
+ public Set<Symbol.PackageSymbol> getSpecifiedPackages() {
+ return specifiedPackages;
+ }
+
+ private static final Pattern allMatches = Pattern.compile(".*");
+ public static final Pattern noMatches = Pattern.compile("(\\P{all})+");
+
+ /**
+ * Convert import-style string for supported annotations into a
+ * regex matching that string. If the string is a valid
+ * import-style string, return a regex that won't match anything.
+ */
+ private static Pattern importStringToPattern(String s, Processor p, Log log) {
+ if (isValidImportString(s)) {
+ return validImportStringToPattern(s);
+ } else {
+ log.warning("proc.malformed.supported.string", s, p.getClass().getName());
+ return noMatches; // won't match any valid identifier
+ }
+ }
+
+ /**
+ * Return true if the argument string is a valid import-style
+ * string specifying claimed annotations; return false otherwise.
+ */
+ public static boolean isValidImportString(String s) {
+ if (s.equals("*"))
+ return true;
+
+ boolean valid = true;
+ String t = s;
+ int index = t.indexOf('*');
+
+ if (index != -1) {
+ // '*' must be last character...
+ if (index == t.length() -1) {
+ // ... any and preceding character must be '.'
+ if ( index-1 >= 0 ) {
+ valid = t.charAt(index-1) == '.';
+ // Strip off ".*$" for identifier checks
+ t = t.substring(0, t.length()-2);
+ }
+ } else
+ return false;
+ }
+
+ // Verify string is off the form (javaId \.)+ or javaId
+ if (valid) {
+ String[] javaIds = t.split("\\.", t.length()+2);
+ for(String javaId: javaIds)
+ valid &= SourceVersion.isIdentifier(javaId);
+ }
+ return valid;
+ }
+
+ public static Pattern validImportStringToPattern(String s) {
+ if (s.equals("*")) {
+ return allMatches;
+ } else {
+ String s_prime = s.replace(".", "\\.");
+
+ if (s_prime.endsWith("*")) {
+ s_prime = s_prime.substring(0, s_prime.length() - 1) + ".+";
+ }
+
+ return Pattern.compile(s_prime);
+ }
+ }
+
+ /**
+ * For internal use only. This method may be removed without warning.
+ */
+ public Context getContext() {
+ return context;
+ }
+
+ /**
+ * For internal use only. This method may be removed without warning.
+ */
+ public ClassLoader getProcessorClassLoader() {
+ return processorClassLoader;
+ }
+
+ public String toString() {
+ return "javac ProcessingEnvironment";
+ }
+
+ public static boolean isValidOptionName(String optionName) {
+ for(String s : optionName.split("\\.", -1)) {
+ if (!SourceVersion.isIdentifier(s))
+ return false;
+ }
+ return true;
+ }
+}