jdk

1
/*
2
 * Copyright (c) 2006, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20
 * or visit www.oracle.com if you need additional information or have any
21
 * questions.
22
 */
23

24
/*
25
 * @test
26
 * @bug 6472751
27
 * @summary SourcePositions.getStartPos returns incorrect value for enum constants
28
 * @author Peter Ahe
29
 * @modules jdk.compiler/com.sun.tools.javac.util
30
 */
31

32
import com.sun.source.tree.CompilationUnitTree;
33
import com.sun.source.tree.Tree;
34
import com.sun.source.tree.Tree.Kind;
35
import com.sun.source.util.JavacTask;
36
import com.sun.source.util.SourcePositions;
37
import com.sun.source.util.TreeScanner;
38
import com.sun.source.util.Trees;
39
import com.sun.tools.javac.util.List;
40
import java.io.IOException;
41
import java.net.URI;
42
import javax.tools.JavaCompiler;
43
import javax.tools.JavaFileObject;
44
import javax.tools.SimpleJavaFileObject;
45
import javax.tools.ToolProvider;
46

47
public class T6472751 {
48
    static class MyFileObject extends SimpleJavaFileObject {
49
        public MyFileObject() {
50
            super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
51
        }
52
        public CharSequence getCharContent(boolean ignoreEncodingErrors) {
53
            return "public enum Test { ABC, DEF; }";
54
        }
55
    }
56
    static Trees trees;
57
    static SourcePositions positions;
58
    public static void main(String[] args) throws IOException {
59
        JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
60
        JavacTask task = (JavacTask) compiler.getTask(null, null, null, null, null, List.of(new MyFileObject()));
61
        trees = Trees.instance(task);
62
        positions = trees.getSourcePositions();
63
        Iterable<? extends CompilationUnitTree> asts = task.parse();
64
        for (CompilationUnitTree ast : asts) {
65
            new MyVisitor().scan(ast, null);
66
        }
67
    }
68

69
    static class MyVisitor extends TreeScanner<Void,Void> {
70
        @Override
71
        public Void scan(Tree node, Void ignored) {
72
            if (node == null)
73
                return null;
74
            Kind k = node.getKind();
75
            long pos = positions.getStartPosition(null,node);
76
            System.out.format("%s: %s%n", k, pos);
77
            if (k != Kind.MODIFIERS && pos < 0)
78
                throw new Error("unexpected position found");
79
            return super.scan(node, ignored);
80
        }
81
    }
82
}
83