Examples of com.sun.tools.javac.api.JavacTaskImpl$Filter

com.sun.tools.javac.api.JavacTaskImpl
Provides access to functionality specific to the JDK Java Compiler, javac.
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.
@author Peter von der Ahé @author Jonathan Gibbons

    List<Filter> keyFilters = new ArrayList<Filter>();
    if (query.hasFilter()) {
      keyFilters.add(query.getFilter());
    }
    if (lastKey != null) {
      Filter lowerBound = DatastoreHelper.makeFilter(DatastoreHelper.KEY_PROPERTY_NAME,
          PropertyFilter.Operator.GREATER_THAN_OR_EQUAL,
          DatastoreHelper.makeValue(lastKey)).build();
      keyFilters.add(lowerBound);
    }
    if (nextKey != null) {
      Filter upperBound = DatastoreHelper.makeFilter(DatastoreHelper.KEY_PROPERTY_NAME,
          PropertyFilter.Operator.LESS_THAN,
          DatastoreHelper.makeValue(nextKey)).build();
      keyFilters.add(upperBound);
    }
    return Query.newBuilder(query).setFilter(makeFilter(keyFilters)).build();

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  }


  private String bind(String className, String exprString, JavaFileObject fileObject)
      throws IOException {
    JavaCompiler javaCompiler = JavacTool.create();
    JavacTaskImpl task = (JavacTaskImpl) javaCompiler.getTask(new PrintWriter(System.err, true),
        fileManager, null, Collections.<String>emptyList(), null, Arrays.asList(fileObject));
    Iterable<? extends CompilationUnitTree> compilationUnits = task.parse();
    task.analyze();
    for (CompilationUnitTree compilationUnit : compilationUnits) {
      FindClass finder = new FindClass();
      finder.visitTopLevel((JCTree.JCCompilationUnit) compilationUnit);
      for (JCTree.JCClassDecl classDecl : finder.decls) {
        if (classDecl.getSimpleName().contentEquals(className)) {
          Optional<GuardedByExpression> guardExpression = GuardedByBinder.bindString(
              exprString,
              GuardedBySymbolResolver.from(
                  ASTHelpers.getSymbol(classDecl),
                  compilationUnit,
                  task.getContext(),
                  null));
          if (!guardExpression.isPresent()) {
            throw new IllegalGuardedBy(exprString);
          }
          return guardExpression.get().debugPrint();

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    List<JavaFileObject> units = new ArrayList<JavaFileObject>();
    for(String f: filesToParse) {
      units.add(new MyFileObject(new URI(f), javax.tools.JavaFileObject.Kind.SOURCE));
    }
    
    JavacTaskImpl task = (JavacTaskImpl)compiler.getTask(null, fileManager,
      new DiagnosticListener<JavaFileObject>() {
        @Override
        public void report(Diagnostic<? extends JavaFileObject> diagnostic) {
//          System.err.println(diagnostic);
          if(diagnostic.getKind() == Kind.ERROR 
            ) {
            throw new RuntimeException(diagnostic.toString());
          }
        }
      },
      null, null, units);


    for(Tree t : task.parse()) {
      currentImports = new ArrayList<String>();
      parse(t);        
    }


    fileManager.close();

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        Set<String> hiddenPackages = new HashSet<String>();
        Set<String> crisp = new HashSet<String>();
        List<String> options = List.of("-XDdev");
        // options = options.prepend("-doe");
        // options = options.prepend("-verbose");
        JavacTaskImpl task = (JavacTaskImpl)
            tool.getTask(null, fm, null, options, null, null);
        com.sun.tools.javac.main.JavaCompiler compiler =
            com.sun.tools.javac.main.JavaCompiler.instance(task.getContext());
        ClassWriter writer = ClassWriter.instance(task.getContext());
        Symtab syms = Symtab.instance(task.getContext());
        Names names = Names.instance(task.getContext());
        Attribute.Compound proprietaryAnno =
            new Attribute.Compound(syms.proprietaryType,
                                   List.<Pair<Symbol.MethodSymbol,Attribute>>nil());
        Attribute.Compound[] profileAnnos = new Attribute.Compound[profiles.getProfileCount() + 1];
        Symbol.MethodSymbol profileValue = (MethodSymbol) syms.profileType.tsym.members().lookup(names.value).sym;
        for (int i = 1; i < profileAnnos.length; i++) {
            profileAnnos[i] = new Attribute.Compound(syms.profileType,
                    List.<Pair<Symbol.MethodSymbol, Attribute>>of(
                    new Pair<Symbol.MethodSymbol, Attribute>(profileValue, new Attribute.Constant(syms.intType, i))));
        }


        Type.moreInfo = true;
        Types types = Types.instance(task.getContext());
        Pool pool = new Pool(types);
        for (JavaFileObject file : fm.list(jarLocation, "", EnumSet.of(CLASS), true)) {
            String className = fm.inferBinaryName(jarLocation, file);
            int index = className.lastIndexOf('.');
            String pckName = index == -1 ? "" : className.substring(0, index);

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


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


        context.clear();
        return next;
    }

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            return "class Test {}";
        }
    }
    public static void main(String[] args) throws IOException {
        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
        JavacTaskImpl task = (JavacTaskImpl)compiler.getTask(null, null, null, null, null,
                                                             List.of(new MyFileObject()));
        MyMessages.preRegister(task.getContext());
        task.parse();
        for (Element e : task.analyze()) {
            if (!e.getEnclosingElement().toString().equals("compiler.misc.unnamed.package"))
                throw new AssertionError(e.getEnclosingElement());
            System.out.println("OK: " + e.getEnclosingElement());
            return;
        }

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    public static void main(String... args) throws IOException {
        JavaCompilerTool tool = ToolProvider.defaultJavaCompiler();
        JavaFileManager fm = tool.getStandardFileManager();
        String srcdir = System.getProperty("test.src");
        File file = new File(srcdir, args[0]);
        JavacTaskImpl task = (JavacTaskImpl)tool.run(null, fm.getFileForInput(file.toString()));
        MyScanner.Factory.preRegister(task.getContext());
        TestJavacTaskScanner tester = new TestJavacTaskScanner(task);
        tester.run();
    }

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    public static void main(String... args) throws IOException {
        JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
        StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);
        String srcdir = System.getProperty("test.src");
        File file = new File(srcdir, args[0]);
        JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, fm, null, null, null, fm.getJavaFileObjectsFromFiles(Arrays.asList(file)));
        Elements elements = task.getElements();
        for (TypeElement clazz : task.enter(task.parse())) {
            String doc = elements.getDocComment(clazz);
            if (doc == null)
                throw new AssertionError(clazz.getSimpleName() + ": no doc comment");
            System.out.format("%s: %s%n", clazz.getSimpleName(), doc);
        }

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        return java.io.StringBufferInputStream.class;
    }


    public static void main(String[] args) throws IOException {
        javax.tools.JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
        JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, null, null, null, null, null);
        JavaCompiler compiler = JavaCompiler.instance(task.getContext());
        System.out.println(compiler.resolveIdent(getDeprecatedClass().getCanonicalName()));
    }

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public class T6330997 {
    public static void main(String... args) {
        increaseMajor("T1.class", 1);
        increaseMajor("T2.class", 2);
        javax.tools.JavaCompiler tool = ToolProvider.getSystemJavaCompiler();
        JavacTaskImpl task = (JavacTaskImpl)tool.getTask(null, null, null, null, null, null);
        JavaCompiler compiler = JavaCompiler.instance(task.getContext());
        try {
            compiler.resolveIdent("T1").complete();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException("Failed: unexpected exception while reading class T1");

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