1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/test/tools/javac/processing/model/util/OverridesSpecEx.java Sat Dec 01 00:00:00 2007 +0000 1.3 @@ -0,0 +1,123 @@ 1.4 +/* 1.5 + * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 1.23 + * CA 95054 USA or visit www.sun.com if you need additional information or 1.24 + * have any questions. 1.25 + */ 1.26 + 1.27 +/* 1.28 + * @test 1.29 + * @bug 6453386 1.30 + * @summary Verify that example code in Elements.overrides works as spec'ed. 1.31 + * @author Scott Seligman 1.32 + * @compile -g OverridesSpecEx.java 1.33 + * @compile -processor OverridesSpecEx -proc:only OverridesSpecEx.java 1.34 + */ 1.35 + 1.36 +import java.util.Set; 1.37 +import javax.annotation.processing.*; 1.38 +import javax.lang.model.SourceVersion; 1.39 +import javax.lang.model.element.*; 1.40 +import javax.lang.model.type.*; 1.41 +import javax.lang.model.util.*; 1.42 + 1.43 +import static javax.lang.model.util.ElementFilter.*; 1.44 + 1.45 + 1.46 +@SupportedSourceVersion(SourceVersion.RELEASE_6) 1.47 +@SupportedAnnotationTypes("*") 1.48 +public class OverridesSpecEx extends AbstractProcessor { 1.49 + 1.50 + Elements elements; 1.51 + Types types; 1.52 + 1.53 + public void init(ProcessingEnvironment penv) { 1.54 + super.init(penv); 1.55 + elements = penv.getElementUtils(); 1.56 + types = penv.getTypeUtils(); 1.57 + } 1.58 + 1.59 + public boolean process(Set<? extends TypeElement> annoTypes, 1.60 + RoundEnvironment round) { 1.61 + if (!round.processingOver()) 1.62 + doit(annoTypes, round); 1.63 + return true; 1.64 + } 1.65 + 1.66 + private void doit(Set<? extends TypeElement> annoTypes, 1.67 + RoundEnvironment round) { 1.68 + TypeElement string = elements.getTypeElement("java.lang.String"); 1.69 + TypeElement object = elements.getTypeElement("java.lang.Object"); 1.70 + 1.71 + ExecutableElement m1 = null; 1.72 + ExecutableElement m2 = null; 1.73 + for (ExecutableElement m : methodsIn(string.getEnclosedElements())) { 1.74 + if (m.getSimpleName().contentEquals("hashCode")) { 1.75 + m1 = m; 1.76 + break; 1.77 + } 1.78 + } 1.79 + for (ExecutableElement m : methodsIn(object.getEnclosedElements())) { 1.80 + if (m.getSimpleName().contentEquals("hashCode")) { 1.81 + m2 = m; 1.82 + break; 1.83 + } 1.84 + } 1.85 + 1.86 + boolean res = 1.87 + elements.overrides(m1, m2, (TypeElement) m1.getEnclosingElement()); 1.88 + System.out.println("String.hashCode overrides Object.hashCode? " + res); 1.89 + checkResult(res); 1.90 + 1.91 + TypeElement a = elements.getTypeElement("OverridesSpecEx.A"); 1.92 + TypeElement b = elements.getTypeElement("OverridesSpecEx.B"); 1.93 + TypeElement c = elements.getTypeElement("OverridesSpecEx.C"); 1.94 + 1.95 + m1 = null; 1.96 + m2 = null; 1.97 + for (ExecutableElement m : methodsIn(a.getEnclosedElements())) 1.98 + m1 = m; 1.99 + for (ExecutableElement m : methodsIn(b.getEnclosedElements())) 1.100 + m2 = m; 1.101 + 1.102 + res = elements.overrides(m1, m2, a); 1.103 + System.out.println("A.m overrides B.m in B? " + res); 1.104 + checkResult(!res); 1.105 + res = elements.overrides(m1, m2, c); 1.106 + System.out.println("A.m overrides B.m in C? " + res); 1.107 + checkResult(res); 1.108 + } 1.109 + 1.110 + private static void checkResult(boolean truthiness) { 1.111 + if (!truthiness) 1.112 + throw new AssertionError("Bogus result"); 1.113 + } 1.114 + 1.115 + 1.116 + // Fodder for the processor 1.117 + 1.118 + class A { 1.119 + public void m() {} 1.120 + } 1.121 + interface B { 1.122 + void m(); 1.123 + } 1.124 + class C extends A implements B { 1.125 + } 1.126 +}