jdk8-mips64-public/langtools: test/tools/javac/T6855236.java@7909abb85562 (annotated)

test/tools/javac/T6855236.java@7909abb85562 (annotated)

test/tools/javac/T6855236.java

Wed, 14 Nov 2018 10:18:25 -0800

author: diazhou
date: Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762: 7909abb85562
parent 683: bbc9765d9ec6
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

 /*
  * Copyright (c) 2010, 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.
  *
  * 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.
  */
 /*
  * @test
  * @bug 6855236
  * @summary Compiler Tree API TreePath class generates NullPointerException from Iterator
  * @compile T6855236.java
  * @compile -processor T6855236 -proc:only T6855236.java
  */
 import java.util.*;
 import javax.annotation.processing.*;
 import javax.lang.model.*;
 import javax.lang.model.element.*;
 import com.sun.source.tree.*;
 import com.sun.source.util.*;
 @SupportedAnnotationTypes("*")
 public class T6855236 extends AbstractProcessor {
     private Trees trees;
     @Override
     public void init(ProcessingEnvironment pe) {
         super.init(pe);
         trees = Trees.instance(pe);
     }
     @Override
     public boolean process(Set<? extends TypeElement> arg0, RoundEnvironment roundEnvironment) {
         // Scanner class to scan through various component elements
         CodeVisitor visitor = new CodeVisitor();
         for (Element e : roundEnvironment.getRootElements()) {
             TreePath tp = trees.getPath(e);
             visitor.scan(tp, trees);
         }
         return true;
     }
     @Override
     public SourceVersion getSupportedSourceVersion() {
         return SourceVersion.latest();
     }
     class CodeVisitor extends TreePathScanner<Object, Trees> {
         @Override
         public Object visitMethodInvocation(MethodInvocationTree node, Trees p) {
             System.out.println("current path: ");
             for (Tree t : getCurrentPath()) {
                 System.out.println("    " + t.getKind() + ": " + trim(t, 64));
             }
             System.out.println("parent path: " + getCurrentPath().getParentPath());
             System.out.println("method select: " + node.getMethodSelect().toString());
             for (ExpressionTree arg : node.getArguments()) {
                 System.out.println("argument: " + arg.toString());
             }
             return super.visitMethodInvocation(node, p);
         }
         @Override
         public Object visitExpressionStatement(ExpressionStatementTree node, Trees p) {
             ExpressionTree t = node.getExpression();
             System.out.println();
             System.out.println("expression statement: " + trim(t, 64));
             return super.visitExpressionStatement(node, p);
         }
     }
     private String trim(Tree t, int len) {
         String s = t.toString().trim().replaceAll("\\s+", " ");
         if (s.length() > len)
             s = s.substring(0, len) + "...";
         return s;
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/T6855236.java@7909abb85562 (annotated)

test/tools/javac/T6855236.java