Examples of com.sun.tools.javac.util.Context

com.sun.tools.javac.util.Context
phase has not been overridden instance = new Phase(context); return instance; } protected Phase(Context context) { context.put(phaseKey, this); // other intitialization follows... } } }
In the compiler, we simply use Phase.instance(context) to get the reference to the phase. But in extensions of the compiler, we must register extensions of the phases to replace the base phase, and this must be done before any reference to the phase is accessed using Phase.instance(). An extended phase might be declared thus:
```
 {@code}public class NewPhase extends Phase  protected NewPhase(Context context) { super(context); } public static void preRegister(final Context context) { context.put(phaseKey, new Context.Factory() { public Phase make() { return new NewPhase(context); } }); } } }
```
And is registered early in the extended compiler like this
```
 NewPhase.preRegister(context); 
```
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.

        if (StaticCompilerUtils.isInitialised()) {
            return;
        }


        log.debug("TreeFabricatingTest init.");
        Context context = new Context();
        StaticCompilerUtils.initWithContext(context);
        LogUtils.init(null);


        f = new UnitTestTreeFactory(StaticCompilerUtils.treeMaker);
        StaticCompilerUtils.treeMaker = f;

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            JavaFileManager fileManager,
            DiagnosticListener<? super JavaFileObject> diagnosticListener,
            Class<?> docletClass,
            Iterable<String> options,
            Iterable<? extends JavaFileObject> compilationUnits) {
        Context context = new Context();
        return getTask(out, fileManager, diagnosticListener,
                docletClass, options, compilationUnits, context);
    }

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    @Override
    public StandardJavaFileManager getStandardFileManager(
            DiagnosticListener<? super JavaFileObject> diagnosticListener,
            Locale locale,
            Charset charset) {
        Context context = new Context();
        context.put(Locale.class, locale);
        if (diagnosticListener != null)
            context.put(DiagnosticListener.class, diagnosticListener);
        PrintWriter pw = (charset == null)
                ? new PrintWriter(System.err, true)
                : new PrintWriter(new OutputStreamWriter(System.err, charset), true);
        context.put(Log.outKey, pw);
        return new JavacFileManager(context, true, charset);
    }

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        }


        /** Create the compiler to be used for the final compilation. */
        JavaCompiler finalCompiler() {
            try {
                Context nextCtx = nextContext();
                JavacProcessingEnvironment.this.context = nextCtx;
                JavaCompiler c = JavaCompiler.instance(nextCtx);
                c.log.initRound(compiler.log);
                return c;
            } finally {

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        /** Get the context for the next round of processing.
         * Important values are propagated from round to round;
         * other values are implicitly reset.
         */
        private Context nextContext() {
            Context next = new Context(context);


            Options options = Options.instance(context);
            Assert.checkNonNull(options);
            next.put(Options.optionsKey, options);


            Locale locale = context.get(Locale.class);
            if (locale != null)
                next.put(Locale.class, locale);


            Assert.checkNonNull(messages);
            next.put(JavacMessages.messagesKey, messages);


            final boolean shareNames = true;
            if (shareNames) {
                Names names = Names.instance(context);
                Assert.checkNonNull(names);
                next.put(Names.namesKey, names);
            }


            DiagnosticListener<?> dl = context.get(DiagnosticListener.class);
            if (dl != null)
                next.put(DiagnosticListener.class, dl);


            MultiTaskListener mtl = context.get(MultiTaskListener.taskListenerKey);
            if (mtl != null)
                next.put(MultiTaskListener.taskListenerKey, mtl);


            FSInfo fsInfo = context.get(FSInfo.class);
            if (fsInfo != null)
                next.put(FSInfo.class, fsInfo);


            JavaFileManager jfm = context.get(JavaFileManager.class);
            Assert.checkNonNull(jfm);
            next.put(JavaFileManager.class, jfm);
            if (jfm instanceof JavacFileManager) {
                ((JavacFileManager)jfm).setContext(next);
            }


            Names names = Names.instance(context);
            Assert.checkNonNull(names);
            next.put(Names.namesKey, names);


            Tokens tokens = Tokens.instance(context);
            Assert.checkNonNull(tokens);
            next.put(Tokens.tokensKey, tokens);


            Log nextLog = Log.instance(next);
            nextLog.initRound(log);


            JavaCompiler oldCompiler = JavaCompiler.instance(context);
            JavaCompiler nextCompiler = JavaCompiler.instance(next);
            nextCompiler.initRound(oldCompiler);


            filer.newRound(next);
            messager.newRound(next);
            elementUtils.setContext(next);
            typeUtils.setContext(next);


            JavacTask task = context.get(JavacTask.class);
            if (task != null) {
                next.put(JavacTask.class, task);
                if (task instanceof BasicJavacTask)
                    ((BasicJavacTask) task).updateContext(next);
            }


            JavacTrees trees = context.get(JavacTrees.class);
            if (trees != null) {
                next.put(JavacTrees.class, trees);
                trees.updateContext(next);
            }


            context.clear();
            return next;

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          PrintWriter errWriter,
          PrintWriter warnWriter,
          PrintWriter noticeWriter,
          String defaultDocletClassName,
          ClassLoader docletParentClassLoader) {
        context = new Context();
        messager = new Messager(context, programName, errWriter, warnWriter, noticeWriter);
        this.defaultDocletClassName = defaultDocletClassName;
        this.docletParentClassLoader = docletParentClassLoader;
    }

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        this(programName, defaultDocletClassName, null);
    }


    Start(String programName, String defaultDocletClassName,
          ClassLoader docletParentClassLoader) {
        context = new Context();
        messager = new Messager(context, programName);
        this.defaultDocletClassName = defaultDocletClassName;
        this.docletParentClassLoader = docletParentClassLoader;
    }

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    public JavaFileManager getFileManager() {
        if (fileManager == null) {
            if (root instanceof RootDocImpl)
                fileManager = ((RootDocImpl) root).getFileManager();
            else
                fileManager = new JavacFileManager(new Context(), false, null);
        }
        return fileManager;
    }

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    private RootDocLoader() {
    }


    public static RootDoc fromPath(String path, String subpackage) throws IOException {
        final Context context = new Context();
        Options.instance(context).put("-sourcepath", path);
        Messager.preRegister(context, "Messager!");


        final ListBuffer<String> subPackages = new ListBuffer<String>();
        subPackages.append(subpackage);

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                                 Iterable<String> classes,
                                 Iterable<? extends JavaFileObject> compilationUnits) {
    ErrorProneOptions errorProneOptions = ErrorProneOptions.processArgs(ArrayUtil.toStringArray(ContainerUtil.toCollection(options)));
    List<String> remainingOptions = Arrays.asList(errorProneOptions.getRemainingArgs());
    CompilationTask task = myJavacTool.getTask(out, fileManager, diagnosticListener, remainingOptions, classes, compilationUnits);
    Context context = ((JavacTaskImpl)task).getContext();
    try {
      ErrorProneScanner scanner = new ErrorProneScanner(ErrorProneScanner.EnabledPredicate.DEFAULT_CHECKS);
      Method setDisabledChecks = ErrorProneScanner.class.getDeclaredMethod("setDisabledChecks", Set.class);
      setDisabledChecks.setAccessible(true);
      setDisabledChecks.invoke(scanner, errorProneOptions.getDisabledChecks());
      context.put(Scanner.class, scanner);
    }
    catch (InvocationTargetException e) {
      throw new RuntimeException(e.getTargetException());
    }
    catch (Exception e) {

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