Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/processing/model/util/OverridesSpecEx.java@2eb010b6cb22 (annotated)
test/tools/javac/processing/model/util/OverridesSpecEx.java
Thu, 31 Aug 2017 15:17:03 +0800
- author
- aoqi
- date
- Thu, 31 Aug 2017 15:17:03 +0800
- changeset 2525
- 2eb010b6cb22
- parent 1466
- b52a38d4536c
- parent 0
- 959103a6100f
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | */ |
| aoqi@0 | 23 | |
| aoqi@0 | 24 | /* |
| aoqi@0 | 25 | * @test |
| aoqi@0 | 26 | * @bug 6453386 |
| aoqi@0 | 27 | * @summary Verify that example code in Elements.overrides works as spec'ed. |
| aoqi@0 | 28 | * @author Scott Seligman |
| aoqi@0 | 29 | * @library /tools/javac/lib |
| aoqi@0 | 30 | * @build JavacTestingAbstractProcessor |
| aoqi@0 | 31 | * @compile -g OverridesSpecEx.java |
| aoqi@0 | 32 | * @compile -processor OverridesSpecEx -proc:only OverridesSpecEx.java |
| aoqi@0 | 33 | */ |
| aoqi@0 | 34 | |
| aoqi@0 | 35 | import java.util.Set; |
| aoqi@0 | 36 | import javax.annotation.processing.*; |
| aoqi@0 | 37 | import javax.lang.model.SourceVersion; |
| aoqi@0 | 38 | import javax.lang.model.element.*; |
| aoqi@0 | 39 | import javax.lang.model.type.*; |
| aoqi@0 | 40 | import javax.lang.model.util.*; |
| aoqi@0 | 41 | |
| aoqi@0 | 42 | import static javax.lang.model.util.ElementFilter.*; |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | public class OverridesSpecEx extends JavacTestingAbstractProcessor { |
| aoqi@0 | 45 | public boolean process(Set<? extends TypeElement> annoTypes, |
| aoqi@0 | 46 | RoundEnvironment round) { |
| aoqi@0 | 47 | if (!round.processingOver()) |
| aoqi@0 | 48 | doit(annoTypes, round); |
| aoqi@0 | 49 | return true; |
| aoqi@0 | 50 | } |
| aoqi@0 | 51 | |
| aoqi@0 | 52 | private void doit(Set<? extends TypeElement> annoTypes, |
| aoqi@0 | 53 | RoundEnvironment round) { |
| aoqi@0 | 54 | TypeElement string = elements.getTypeElement("java.lang.String"); |
| aoqi@0 | 55 | TypeElement object = elements.getTypeElement("java.lang.Object"); |
| aoqi@0 | 56 | |
| aoqi@0 | 57 | ExecutableElement m1 = null; |
| aoqi@0 | 58 | ExecutableElement m2 = null; |
| aoqi@0 | 59 | for (ExecutableElement m : methodsIn(string.getEnclosedElements())) { |
| aoqi@0 | 60 | if (m.getSimpleName().contentEquals("hashCode")) { |
| aoqi@0 | 61 | m1 = m; |
| aoqi@0 | 62 | break; |
| aoqi@0 | 63 | } |
| aoqi@0 | 64 | } |
| aoqi@0 | 65 | for (ExecutableElement m : methodsIn(object.getEnclosedElements())) { |
| aoqi@0 | 66 | if (m.getSimpleName().contentEquals("hashCode")) { |
| aoqi@0 | 67 | m2 = m; |
| aoqi@0 | 68 | break; |
| aoqi@0 | 69 | } |
| aoqi@0 | 70 | } |
| aoqi@0 | 71 | |
| aoqi@0 | 72 | boolean res = |
| aoqi@0 | 73 | elements.overrides(m1, m2, (TypeElement) m1.getEnclosingElement()); |
| aoqi@0 | 74 | System.out.println("String.hashCode overrides Object.hashCode? " + res); |
| aoqi@0 | 75 | checkResult(res); |
| aoqi@0 | 76 | |
| aoqi@0 | 77 | TypeElement a = elements.getTypeElement("OverridesSpecEx.A"); |
| aoqi@0 | 78 | TypeElement b = elements.getTypeElement("OverridesSpecEx.B"); |
| aoqi@0 | 79 | TypeElement c = elements.getTypeElement("OverridesSpecEx.C"); |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | m1 = null; |
| aoqi@0 | 82 | m2 = null; |
| aoqi@0 | 83 | for (ExecutableElement m : methodsIn(a.getEnclosedElements())) |
| aoqi@0 | 84 | m1 = m; |
| aoqi@0 | 85 | for (ExecutableElement m : methodsIn(b.getEnclosedElements())) |
| aoqi@0 | 86 | m2 = m; |
| aoqi@0 | 87 | |
| aoqi@0 | 88 | res = elements.overrides(m1, m2, a); |
| aoqi@0 | 89 | System.out.println("A.m overrides B.m in B? " + res); |
| aoqi@0 | 90 | checkResult(!res); |
| aoqi@0 | 91 | res = elements.overrides(m1, m2, c); |
| aoqi@0 | 92 | System.out.println("A.m overrides B.m in C? " + res); |
| aoqi@0 | 93 | checkResult(res); |
| aoqi@0 | 94 | } |
| aoqi@0 | 95 | |
| aoqi@0 | 96 | private static void checkResult(boolean truthiness) { |
| aoqi@0 | 97 | if (!truthiness) |
| aoqi@0 | 98 | throw new AssertionError("Bogus result"); |
| aoqi@0 | 99 | } |
| aoqi@0 | 100 | |
| aoqi@0 | 101 | // Fodder for the processor |
| aoqi@0 | 102 | class A { |
| aoqi@0 | 103 | public void m() {} |
| aoqi@0 | 104 | } |
| aoqi@0 | 105 | interface B { |
| aoqi@0 | 106 | void m(); |
| aoqi@0 | 107 | } |
| aoqi@0 | 108 | class C extends A implements B { |
| aoqi@0 | 109 | } |
| aoqi@0 | 110 | } |
