1 /* 2 * Copyright (c) 2006, 2018, 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 6423972 27 * @summary Tests TypeParameter.getBounds. 28 * @author Scott Seligman 29 * @library /tools/javac/lib 30 * @modules java.compiler 31 * jdk.compiler 32 * @build JavacTestingAbstractProcessor TypeParamBounds 33 * @compile -processor TypeParamBounds -proc:only TypeParamBounds.java 34 */ 35 36 import java.util.HashMap; 37 import java.util.List; 38 import java.util.Map; 39 import java.util.Set; 40 import javax.annotation.processing.*; 41 import javax.lang.model.SourceVersion; 42 import javax.lang.model.element.*; 43 import javax.lang.model.type.*; 44 import javax.lang.model.util.*; 45 46 public class TypeParamBounds extends JavacTestingAbstractProcessor { process(Set<? extends TypeElement> annoTypes, RoundEnvironment round)47 public boolean process(Set<? extends TypeElement> annoTypes, 48 RoundEnvironment round) { 49 if (!round.processingOver()) 50 doit(annoTypes, round); 51 return true; 52 } 53 doit(Set<? extends TypeElement> annoTypes, RoundEnvironment round)54 private void doit(Set<? extends TypeElement> annoTypes, 55 RoundEnvironment round) { 56 TypeElement gen = elements.getTypeElement("TypeParamBounds.Gen"); 57 58 // For each type parameter of Gen, compare its bounds with the 59 // bounds that are expected. 60 // 61 for (TypeParameterElement tparam : gen.getTypeParameters()) { 62 System.out.println(tparam); 63 List<? extends TypeMirror> bounds = tparam.getBounds(); 64 String[] expected = Gen.boundNames.get(tparam + ""); 65 66 if (bounds.size() != expected.length) 67 throw new AssertionError(); 68 int i = 0; 69 for (TypeMirror bound : bounds) { 70 Name got = types.asElement(bound).getSimpleName(); 71 String shoulda = expected[i++]; 72 System.out.println(" " + got); 73 if (!got.contentEquals(shoulda)) 74 throw new AssertionError(shoulda); 75 } 76 } 77 } 78 79 80 // Fodder for the processor 81 static class Gen<T, U extends Object, V extends Number, W extends U, 82 X extends Runnable, Y extends CharSequence & Runnable, 83 Z extends Object & Runnable> { 84 85 // The names of the bounds of each type parameter of Gen. 86 static Map<String, String[]> boundNames = 87 Map.of("T", new String[] {"Object"}, 88 "U", new String[] {"Object"}, 89 "V", new String[] {"Number"}, 90 "W", new String[] {"U"}, 91 "X", new String[] {"Runnable"}, 92 "Y", new String[] {"CharSequence", "Runnable"}, 93 "Z", new String[] {"Object", "Runnable"}); 94 } 95 } 96