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

 /*

  * Copyright (c) 2005, 2012, 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.api;

 import java.io.IOException;

 import java.util.Collection;

 import java.util.Locale;

 import javax.annotation.processing.Processor;

 import javax.lang.model.element.Element;

 import javax.lang.model.type.TypeMirror;

 import javax.lang.model.util.Elements;

 import javax.lang.model.util.Types;

 import javax.tools.JavaFileObject;

 import com.sun.source.tree.CompilationUnitTree;

 import com.sun.source.tree.Tree;

 import com.sun.source.util.JavacTask;

 import com.sun.source.util.TaskListener;

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

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

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

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

 /**

  * Provides basic functionality for implementations of JavacTask.

  *

  * <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></p>

  */

 public class BasicJavacTask extends JavacTask {

     protected Context context;

     private TaskListener taskListener;

     public static JavacTask instance(Context context) {

         JavacTask instance = context.get(JavacTask.class);

         if (instance == null)

             instance = new BasicJavacTask(context, true);

         return instance;

     }

     public BasicJavacTask(Context c, boolean register) {

         context = c;

         if (register)

             context.put(JavacTask.class, this);

     }

     @Override

     public Iterable<? extends CompilationUnitTree> parse() throws IOException {

         throw new IllegalStateException();

     }

     @Override

     public Iterable<? extends Element> analyze() throws IOException {

         throw new IllegalStateException();

     }

     @Override

     public Iterable<? extends JavaFileObject> generate() throws IOException {

         throw new IllegalStateException();

     }

     @Override

     public void setTaskListener(TaskListener tl) {

         MultiTaskListener mtl = MultiTaskListener.instance(context);

         if (taskListener != null)

             mtl.remove(taskListener);

         if (tl != null)

             mtl.add(tl);

         taskListener = tl;

     }

     @Override

     public void addTaskListener(TaskListener taskListener) {

         MultiTaskListener mtl = MultiTaskListener.instance(context);

         mtl.add(taskListener);

     }

     @Override

     public void removeTaskListener(TaskListener taskListener) {

         MultiTaskListener mtl = MultiTaskListener.instance(context);

         mtl.remove(taskListener);

     }

     public Collection<TaskListener> getTaskListeners() {

         MultiTaskListener mtl = MultiTaskListener.instance(context);

         return mtl.getTaskListeners();

     }

     @Override

     public TypeMirror getTypeMirror(Iterable<? extends Tree> path) {

         // TODO: Should complete attribution if necessary

         Tree last = null;

         for (Tree node : path)

             last = node;

         return ((JCTree)last).type;

     }

     @Override

     public Elements getElements() {

         return JavacElements.instance(context);

     }

     @Override

     public Types getTypes() {

         return JavacTypes.instance(context);

     }

     public void setProcessors(Iterable<? extends Processor> processors) {

         throw new IllegalStateException();

     }

     public void setLocale(Locale locale) {

         throw new IllegalStateException();

     }

     public Boolean call() {

         throw new IllegalStateException();

     }

     /**

      * For internal use only.  This method will be

      * removed without warning.

      */

     public Context getContext() {

         return context;

     }

     /**

      * For internal use only.  This method will be

      * removed without warning.

      */

     public void updateContext(Context newContext) {

         context = newContext;

     }

 }