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.


    public JavacFileManager 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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                             Iterable<String> options,
                             Iterable<String> classes,
                             Iterable<? extends JavaFileObject> compilationUnits)
    {
        try {
            Context context = new Context();
            ClientCodeWrapper ccw = ClientCodeWrapper.instance(context);


            final String kindMsg = "All compilation units must be of SOURCE kind";
            if (options != null)
                for (String option : options)
                    option.getClass(); // null check
            if (classes != null) {
                for (String cls : classes)
                    if (!SourceVersion.isName(cls)) // implicit null check
                        throw new IllegalArgumentException("Not a valid class name: " + cls);
            }
            if (compilationUnits != null) {
                compilationUnits = ccw.wrapJavaFileObjects(compilationUnits); // implicit null check
                for (JavaFileObject cu : compilationUnits) {
                    if (cu.getKind() != JavaFileObject.Kind.SOURCE)
                        throw new IllegalArgumentException(kindMsg);
                }
            }


            if (diagnosticListener != null)
                context.put(DiagnosticListener.class, ccw.wrap(diagnosticListener));


            if (out == null)
                context.put(Log.outKey, new PrintWriter(System.err, true));
            else
                context.put(Log.outKey, new PrintWriter(out, true));


            if (fileManager == null)
                fileManager = getStandardFileManager(diagnosticListener, null, null);
            fileManager = ccw.wrap(fileManager);
            context.put(JavaFileManager.class, fileManager);
            processOptions(context, fileManager, options);
            Main compiler = new Main("javacTask", context.get(Log.outKey));
            return new JavacTaskImpl(compiler, options, context, classes, compilationUnits);
        } catch (ClientCodeException ex) {
            throw new RuntimeException(ex.getCause());
        }
    }

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      return SourceVersion.latest();
    }


    @Override
    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
      Context context = ((JavacProcessingEnvironment) processingEnv).getContext();
      assertSame(expected, context.get(Scanner.class));
      return false;
    }

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public class ErrorProneInMemoryFileManager extends JavacPathFileManager {
  
  private final FileSystem fileSystem;
  
  public ErrorProneInMemoryFileManager() {
    super(new Context(), false, UTF_8);
    this.fileSystem = Jimfs.newFileSystem(Configuration.unix());
    setDefaultFileSystem(fileSystem);
  }

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    return compile(new String[]{}, sources, processors);
  }
  
  public Result compile(String[] args, List<JavaFileObject> sources, List<? extends Processor>
      processors) {
    Context context = new Context();
    context.put(JavaFileManager.class, fileManager);
    List<String> processedArgs =
        CompilationTestHelper.disableImplicitProcessing(Arrays.asList(args));
    String[] argsArray = processedArgs.toArray(new String[processedArgs.size()]);
    return compiler.compile(argsArray, context, asJavacList(sources), processors);
  }

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    assertCompileFailsWithMessages(ImmutableList.of(source));
  }


  Result compile(Iterable<JavaFileObject> sources, String[] args) {
    checkWellFormed(sources, args);
    Context context = new Context();
    context.put(JavaFileManager.class, fileManager);
    return compiler.compile(args, context, asJavacList(sources), null);
  }

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    defaultFilter = 5L;
    docLocale = "";
    breakiterator = false;
    encoding = null;
    rejectWarnings = false;
    context = new Context();
    messager = new net.jangaroo.joodoc.Messager(context, s);
    defaultDocletClassName = s1;
  }

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    defaultFilter = 5L;
    docLocale = "";
    breakiterator = false;
    encoding = null;
    rejectWarnings = false;
    context = new Context();
    messager = new net.jangaroo.joodoc.Messager(context, s, printwriter, printwriter1, printwriter2);
    defaultDocletClassName = s1;
  }

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     */
    public static JavacTask instance(ProcessingEnvironment processingEnvironment) {
        if (!processingEnvironment.getClass().getName().equals(
                "com.sun.tools.javac.processing.JavacProcessingEnvironment"))
            throw new IllegalArgumentException();
        Context c = ((JavacProcessingEnvironment) processingEnvironment).getContext();
        JavacTask t = c.get(JavacTask.class);
        return (t != null) ? t : new BasicJavacTask(c, true);
    }

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  public Result compile(List<JavaFileObject> sources) {
    return compile(new String[]{}, sources);
  }


  public Result compile(String[] args, List<JavaFileObject> sources) {
    Context context = new Context();
    JavacFileManager.preRegister(context);
    return compile(args, context, sources, null);
  }

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