1 /*
2 * Copyright (c) 2006, 2010, 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 6423972
27 * @summary Tests TypeParameter.getBounds.
28 * @author Scott Seligman
29 * @library ../../../lib
30 * @build JavacTestingAbstractProcessor
31 * @build TypeParamBounds
32 * @compile -processor TypeParamBounds -proc:only TypeParamBounds.java
33 */
34
35 import java.util.HashMap;
36 import java.util.List;
37 import java.util.Map;
38 import java.util.Set;
39 import javax.annotation.processing.*;
40 import javax.lang.model.SourceVersion;
41 import javax.lang.model.element.*;
42 import javax.lang.model.type.*;
43 import javax.lang.model.util.*;
44
45 public class TypeParamBounds extends JavacTestingAbstractProcessor {
46 public boolean process(Set<? extends TypeElement> annoTypes,
47 RoundEnvironment round) {
48 if (!round.processingOver())
49 doit(annoTypes, round);
50 return true;
51 }
52
53 private void doit(Set<? extends TypeElement> annoTypes,
54 RoundEnvironment round) {
55 TypeElement gen = elements.getTypeElement("TypeParamBounds.Gen");
56
57 // For each type parameter of Gen, compare its bounds with the
58 // bounds that are expected.
59 //
60 for (TypeParameterElement tparam : gen.getTypeParameters()) {
61 System.out.println(tparam);
62 List<? extends TypeMirror> bounds = tparam.getBounds();
63 String[] expected = Gen.boundNames.get(tparam + "");
64
65 if (bounds.size() != expected.length)
66 throw new AssertionError();
67 int i = 0;
68 for (TypeMirror bound : bounds) {
69 Name got = types.asElement(bound).getSimpleName();
70 String shoulda = expected[i++];
71 System.out.println(" " + got);
72 if (!got.contentEquals(shoulda))
73 throw new AssertionError(shoulda);
74 }
75 }
76 }
77
78
79 // Fodder for the processor
80 static class Gen<T, U extends Object, V extends Number, W extends U,
81 X extends Runnable, Y extends CharSequence & Runnable,
82 Z extends Object & Runnable> {
83
84 // The names of the bounds of each type parameter of Gen.
85 static Map<String, String[]> boundNames =
86 new HashMap<String, String[]>();
87
88 static {
89 boundNames.put("T", new String[] {"Object"});
90 boundNames.put("U", new String[] {"Object"});
91 boundNames.put("V", new String[] {"Number"});
92 boundNames.put("W", new String[] {"U"});
93 boundNames.put("X", new String[] {"Runnable"});
94 boundNames.put("Y", new String[] {"CharSequence", "Runnable"});
95 boundNames.put("Z", new String[] {"Object", "Runnable"});
96 }
97 }
98 }