Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/processing/model/util/OverridesSpecEx.java
test/tools/javac/processing/model/util/OverridesSpecEx.java
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| 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 6453386 | |
| 27 * @summary Verify that example code in Elements.overrides works as spec'ed. | |
| 28 * @author Scott Seligman | |
| 29 * @library /tools/javac/lib | |
| 30 * @build JavacTestingAbstractProcessor | |
| 31 * @compile -g OverridesSpecEx.java | |
| 32 * @compile -processor OverridesSpecEx -proc:only OverridesSpecEx.java | |
| 33 */ | |
| 34 | |
| 35 import java.util.Set; | |
| 36 import javax.annotation.processing.*; | |
| 37 import javax.lang.model.SourceVersion; | |
| 38 import javax.lang.model.element.*; | |
| 39 import javax.lang.model.type.*; | |
| 40 import javax.lang.model.util.*; | |
| 41 | |
| 42 import static javax.lang.model.util.ElementFilter.*; | |
| 43 | |
| 44 public class OverridesSpecEx extends JavacTestingAbstractProcessor { | |
| 45 public boolean process(Set<? extends TypeElement> annoTypes, | |
| 46 RoundEnvironment round) { | |
| 47 if (!round.processingOver()) | |
| 48 doit(annoTypes, round); | |
| 49 return true; | |
| 50 } | |
| 51 | |
| 52 private void doit(Set<? extends TypeElement> annoTypes, | |
| 53 RoundEnvironment round) { | |
| 54 TypeElement string = elements.getTypeElement("java.lang.String"); | |
| 55 TypeElement object = elements.getTypeElement("java.lang.Object"); | |
| 56 | |
| 57 ExecutableElement m1 = null; | |
| 58 ExecutableElement m2 = null; | |
| 59 for (ExecutableElement m : methodsIn(string.getEnclosedElements())) { | |
| 60 if (m.getSimpleName().contentEquals("hashCode")) { | |
| 61 m1 = m; | |
| 62 break; | |
| 63 } | |
| 64 } | |
| 65 for (ExecutableElement m : methodsIn(object.getEnclosedElements())) { | |
| 66 if (m.getSimpleName().contentEquals("hashCode")) { | |
| 67 m2 = m; | |
| 68 break; | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 boolean res = | |
| 73 elements.overrides(m1, m2, (TypeElement) m1.getEnclosingElement()); | |
| 74 System.out.println("String.hashCode overrides Object.hashCode? " + res); | |
| 75 checkResult(res); | |
| 76 | |
| 77 TypeElement a = elements.getTypeElement("OverridesSpecEx.A"); | |
| 78 TypeElement b = elements.getTypeElement("OverridesSpecEx.B"); | |
| 79 TypeElement c = elements.getTypeElement("OverridesSpecEx.C"); | |
| 80 | |
| 81 m1 = null; | |
| 82 m2 = null; | |
| 83 for (ExecutableElement m : methodsIn(a.getEnclosedElements())) | |
| 84 m1 = m; | |
| 85 for (ExecutableElement m : methodsIn(b.getEnclosedElements())) | |
| 86 m2 = m; | |
| 87 | |
| 88 res = elements.overrides(m1, m2, a); | |
| 89 System.out.println("A.m overrides B.m in B? " + res); | |
| 90 checkResult(!res); | |
| 91 res = elements.overrides(m1, m2, c); | |
| 92 System.out.println("A.m overrides B.m in C? " + res); | |
| 93 checkResult(res); | |
| 94 } | |
| 95 | |
| 96 private static void checkResult(boolean truthiness) { | |
| 97 if (!truthiness) | |
| 98 throw new AssertionError("Bogus result"); | |
| 99 } | |
| 100 | |
| 101 // Fodder for the processor | |
| 102 class A { | |
| 103 public void m() {} | |
| 104 } | |
| 105 interface B { | |
| 106 void m(); | |
| 107 } | |
| 108 class C extends A implements B { | |
| 109 } | |
| 110 } |
