Sat, 01 Dec 2007 00:00:00 +0000
Initial load
1 /*
2 * Copyright 2006 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 */
24 /*
25 * @test
26 * @bug 6453386
27 * @summary Verify that example code in Elements.overrides works as spec'ed.
28 * @author Scott Seligman
29 * @compile -g OverridesSpecEx.java
30 * @compile -processor OverridesSpecEx -proc:only OverridesSpecEx.java
31 */
33 import java.util.Set;
34 import javax.annotation.processing.*;
35 import javax.lang.model.SourceVersion;
36 import javax.lang.model.element.*;
37 import javax.lang.model.type.*;
38 import javax.lang.model.util.*;
40 import static javax.lang.model.util.ElementFilter.*;
43 @SupportedSourceVersion(SourceVersion.RELEASE_6)
44 @SupportedAnnotationTypes("*")
45 public class OverridesSpecEx extends AbstractProcessor {
47 Elements elements;
48 Types types;
50 public void init(ProcessingEnvironment penv) {
51 super.init(penv);
52 elements = penv.getElementUtils();
53 types = penv.getTypeUtils();
54 }
56 public boolean process(Set<? extends TypeElement> annoTypes,
57 RoundEnvironment round) {
58 if (!round.processingOver())
59 doit(annoTypes, round);
60 return true;
61 }
63 private void doit(Set<? extends TypeElement> annoTypes,
64 RoundEnvironment round) {
65 TypeElement string = elements.getTypeElement("java.lang.String");
66 TypeElement object = elements.getTypeElement("java.lang.Object");
68 ExecutableElement m1 = null;
69 ExecutableElement m2 = null;
70 for (ExecutableElement m : methodsIn(string.getEnclosedElements())) {
71 if (m.getSimpleName().contentEquals("hashCode")) {
72 m1 = m;
73 break;
74 }
75 }
76 for (ExecutableElement m : methodsIn(object.getEnclosedElements())) {
77 if (m.getSimpleName().contentEquals("hashCode")) {
78 m2 = m;
79 break;
80 }
81 }
83 boolean res =
84 elements.overrides(m1, m2, (TypeElement) m1.getEnclosingElement());
85 System.out.println("String.hashCode overrides Object.hashCode? " + res);
86 checkResult(res);
88 TypeElement a = elements.getTypeElement("OverridesSpecEx.A");
89 TypeElement b = elements.getTypeElement("OverridesSpecEx.B");
90 TypeElement c = elements.getTypeElement("OverridesSpecEx.C");
92 m1 = null;
93 m2 = null;
94 for (ExecutableElement m : methodsIn(a.getEnclosedElements()))
95 m1 = m;
96 for (ExecutableElement m : methodsIn(b.getEnclosedElements()))
97 m2 = m;
99 res = elements.overrides(m1, m2, a);
100 System.out.println("A.m overrides B.m in B? " + res);
101 checkResult(!res);
102 res = elements.overrides(m1, m2, c);
103 System.out.println("A.m overrides B.m in C? " + res);
104 checkResult(res);
105 }
107 private static void checkResult(boolean truthiness) {
108 if (!truthiness)
109 throw new AssertionError("Bogus result");
110 }
113 // Fodder for the processor
115 class A {
116 public void m() {}
117 }
118 interface B {
119 void m();
120 }
121 class C extends A implements B {
122 }
123 }