1/*
2 * Copyright (c) 2005, 2008, 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 6199662 6325201 6726015
27 * @summary javac: compilation success depends on compilation order
28 *
29 * @compile Tree.java TreeScanner.java TreeInfo.java
30 * @compile TreeInfo.java TreeScanner.java Tree.java
31 *
32 * @compile -XDcompilePolicy=bytodo Tree.java TreeScanner.java TreeInfo.java
33 * @compile -XDcompilePolicy=bytodo TreeInfo.java TreeScanner.java Tree.java
34 *
35 * @compile -XDcompilePolicy=byfile Tree.java TreeScanner.java TreeInfo.java
36 * @compile -XDcompilePolicy=byfile TreeInfo.java TreeScanner.java Tree.java
37 *
38 * @compile -XDcompilePolicy=simple Tree.java TreeScanner.java TreeInfo.java
39 * @compile -XDcompilePolicy=simple TreeInfo.java TreeScanner.java Tree.java
40 *
41 * @compile -XDcompilePolicy=check  Tree.java TreeScanner.java TreeInfo.java
42 * @compile -XDcompilePolicy=check  TreeInfo.java TreeScanner.java Tree.java
43 *
44 * @compile -XDcompilePolicy=attr   Tree.java TreeScanner.java TreeInfo.java
45 * @compile -XDcompilePolicy=attr   TreeInfo.java TreeScanner.java Tree.java
46 */
47
48package p;
49
50public abstract class Tree {
51
52    /** Visit this tree with a given visitor.
53     */
54    public abstract <E extends Throwable> void accept(Visitor<E> v) throws E;
55
56
57    /** A generic visitor class for trees.
58     */
59    public static abstract class Visitor<E extends Throwable> {
60        public void visitTree(Tree that)                   throws E { assert false; }
61    }
62}
63