Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/processing/model/util/OverridesSpecEx.java@9a66ca7c79fa (annotated)
test/tools/javac/processing/model/util/OverridesSpecEx.java
Sat, 01 Dec 2007 00:00:00 +0000
- author
- duke
- date
- Sat, 01 Dec 2007 00:00:00 +0000
- changeset 1
- 9a66ca7c79fa
- child 495
- fe17a9dbef03
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| duke@1 | 1 | /* |
| duke@1 | 2 | * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. |
| duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| duke@1 | 4 | * |
| duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
| duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| duke@1 | 7 | * published by the Free Software Foundation. |
| duke@1 | 8 | * |
| duke@1 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| duke@1 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| duke@1 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| duke@1 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| duke@1 | 13 | * accompanied this code). |
| duke@1 | 14 | * |
| duke@1 | 15 | * You should have received a copy of the GNU General Public License version |
| duke@1 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| duke@1 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| duke@1 | 18 | * |
| duke@1 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| duke@1 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| duke@1 | 21 | * have any questions. |
| duke@1 | 22 | */ |
| duke@1 | 23 | |
| duke@1 | 24 | /* |
| duke@1 | 25 | * @test |
| duke@1 | 26 | * @bug 6453386 |
| duke@1 | 27 | * @summary Verify that example code in Elements.overrides works as spec'ed. |
| duke@1 | 28 | * @author Scott Seligman |
| duke@1 | 29 | * @compile -g OverridesSpecEx.java |
| duke@1 | 30 | * @compile -processor OverridesSpecEx -proc:only OverridesSpecEx.java |
| duke@1 | 31 | */ |
| duke@1 | 32 | |
| duke@1 | 33 | import java.util.Set; |
| duke@1 | 34 | import javax.annotation.processing.*; |
| duke@1 | 35 | import javax.lang.model.SourceVersion; |
| duke@1 | 36 | import javax.lang.model.element.*; |
| duke@1 | 37 | import javax.lang.model.type.*; |
| duke@1 | 38 | import javax.lang.model.util.*; |
| duke@1 | 39 | |
| duke@1 | 40 | import static javax.lang.model.util.ElementFilter.*; |
| duke@1 | 41 | |
| duke@1 | 42 | |
| duke@1 | 43 | @SupportedSourceVersion(SourceVersion.RELEASE_6) |
| duke@1 | 44 | @SupportedAnnotationTypes("*") |
| duke@1 | 45 | public class OverridesSpecEx extends AbstractProcessor { |
| duke@1 | 46 | |
| duke@1 | 47 | Elements elements; |
| duke@1 | 48 | Types types; |
| duke@1 | 49 | |
| duke@1 | 50 | public void init(ProcessingEnvironment penv) { |
| duke@1 | 51 | super.init(penv); |
| duke@1 | 52 | elements = penv.getElementUtils(); |
| duke@1 | 53 | types = penv.getTypeUtils(); |
| duke@1 | 54 | } |
| duke@1 | 55 | |
| duke@1 | 56 | public boolean process(Set<? extends TypeElement> annoTypes, |
| duke@1 | 57 | RoundEnvironment round) { |
| duke@1 | 58 | if (!round.processingOver()) |
| duke@1 | 59 | doit(annoTypes, round); |
| duke@1 | 60 | return true; |
| duke@1 | 61 | } |
| duke@1 | 62 | |
| duke@1 | 63 | private void doit(Set<? extends TypeElement> annoTypes, |
| duke@1 | 64 | RoundEnvironment round) { |
| duke@1 | 65 | TypeElement string = elements.getTypeElement("java.lang.String"); |
| duke@1 | 66 | TypeElement object = elements.getTypeElement("java.lang.Object"); |
| duke@1 | 67 | |
| duke@1 | 68 | ExecutableElement m1 = null; |
| duke@1 | 69 | ExecutableElement m2 = null; |
| duke@1 | 70 | for (ExecutableElement m : methodsIn(string.getEnclosedElements())) { |
| duke@1 | 71 | if (m.getSimpleName().contentEquals("hashCode")) { |
| duke@1 | 72 | m1 = m; |
| duke@1 | 73 | break; |
| duke@1 | 74 | } |
| duke@1 | 75 | } |
| duke@1 | 76 | for (ExecutableElement m : methodsIn(object.getEnclosedElements())) { |
| duke@1 | 77 | if (m.getSimpleName().contentEquals("hashCode")) { |
| duke@1 | 78 | m2 = m; |
| duke@1 | 79 | break; |
| duke@1 | 80 | } |
| duke@1 | 81 | } |
| duke@1 | 82 | |
| duke@1 | 83 | boolean res = |
| duke@1 | 84 | elements.overrides(m1, m2, (TypeElement) m1.getEnclosingElement()); |
| duke@1 | 85 | System.out.println("String.hashCode overrides Object.hashCode? " + res); |
| duke@1 | 86 | checkResult(res); |
| duke@1 | 87 | |
| duke@1 | 88 | TypeElement a = elements.getTypeElement("OverridesSpecEx.A"); |
| duke@1 | 89 | TypeElement b = elements.getTypeElement("OverridesSpecEx.B"); |
| duke@1 | 90 | TypeElement c = elements.getTypeElement("OverridesSpecEx.C"); |
| duke@1 | 91 | |
| duke@1 | 92 | m1 = null; |
| duke@1 | 93 | m2 = null; |
| duke@1 | 94 | for (ExecutableElement m : methodsIn(a.getEnclosedElements())) |
| duke@1 | 95 | m1 = m; |
| duke@1 | 96 | for (ExecutableElement m : methodsIn(b.getEnclosedElements())) |
| duke@1 | 97 | m2 = m; |
| duke@1 | 98 | |
| duke@1 | 99 | res = elements.overrides(m1, m2, a); |
| duke@1 | 100 | System.out.println("A.m overrides B.m in B? " + res); |
| duke@1 | 101 | checkResult(!res); |
| duke@1 | 102 | res = elements.overrides(m1, m2, c); |
| duke@1 | 103 | System.out.println("A.m overrides B.m in C? " + res); |
| duke@1 | 104 | checkResult(res); |
| duke@1 | 105 | } |
| duke@1 | 106 | |
| duke@1 | 107 | private static void checkResult(boolean truthiness) { |
| duke@1 | 108 | if (!truthiness) |
| duke@1 | 109 | throw new AssertionError("Bogus result"); |
| duke@1 | 110 | } |
| duke@1 | 111 | |
| duke@1 | 112 | |
| duke@1 | 113 | // Fodder for the processor |
| duke@1 | 114 | |
| duke@1 | 115 | class A { |
| duke@1 | 116 | public void m() {} |
| duke@1 | 117 | } |
| duke@1 | 118 | interface B { |
| duke@1 | 119 | void m(); |
| duke@1 | 120 | } |
| duke@1 | 121 | class C extends A implements B { |
| duke@1 | 122 | } |
| duke@1 | 123 | } |
