1 /*

     2  * Copyright 2006-2010 Sun Microsystems, Inc.  All Rights Reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 6472751

    27  * @summary SourcePositions.getStartPos returns incorrect value for enum constants

    28  * @author Peter Ahe

    29  */

    30 

    31 import com.sun.source.tree.CompilationUnitTree;

    32 import com.sun.source.tree.Tree;

    33 import com.sun.source.tree.Tree.Kind;

    34 import com.sun.source.util.JavacTask;

    35 import com.sun.source.util.SourcePositions;

    36 import com.sun.source.util.TreeScanner;

    37 import com.sun.source.util.Trees;

    38 import com.sun.tools.javac.util.List;

    39 import java.io.IOException;

    40 import java.net.URI;

    41 import javax.tools.JavaCompiler;

    42 import javax.tools.JavaFileObject;

    43 import javax.tools.SimpleJavaFileObject;

    44 import javax.tools.ToolProvider;

    45 

    46 public class T6472751 {

    47     static class MyFileObject extends SimpleJavaFileObject {

    48         public MyFileObject() {

    49             super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);

    50         }

    51         public CharSequence getCharContent(boolean ignoreEncodingErrors) {

    52             return "public enum Test { ABC, DEF; }";

    53         }

    54     }

    55     static Trees trees;

    56     static SourcePositions positions;

    57     public static void main(String[] args) throws IOException {

    58         JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    59         JavacTask task = (JavacTask) compiler.getTask(null, null, null, null, null, List.of(new MyFileObject()));

    60         trees = Trees.instance(task);

    61         positions = trees.getSourcePositions();

    62         Iterable<? extends CompilationUnitTree> asts = task.parse();

    63         for (CompilationUnitTree ast : asts) {

    64             new MyVisitor().scan(ast, null);

    65         }

    66     }

    67 

    68     static class MyVisitor extends TreeScanner<Void,Void> {

    69         @Override

    70         public Void scan(Tree node, Void ignored) {

    71             if (node == null)

    72                 return null;

    73             Kind k = node.getKind();

    74             long pos = positions.getStartPosition(null,node);

    75             System.out.format("%s: %s%n", k, pos);

    76             if (k != Kind.MODIFIERS && pos < 0)

    77                 throw new Error("unexpected position found");

    78             return super.scan(node, ignored);

    79         }

    80     }

    81 }