1 /* 2 * Copyright 2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 20 * CA 95054 USA or visit www.sun.com if you need additional information or 21 * have any questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6423972 27 * @summary Tests TypeParameter.getBounds. 28 * @author Scott Seligman 29 * @build TypeParamBounds 30 * @compile -processor TypeParamBounds -proc:only TypeParamBounds.java 31 */ 32 33 import java.util.HashMap; 34 import java.util.List; 35 import java.util.Map; 36 import java.util.Set; 37 import javax.annotation.processing.*; 38 import javax.lang.model.SourceVersion; 39 import javax.lang.model.element.*; 40 import javax.lang.model.type.*; 41 import javax.lang.model.util.*; 42 43 @SupportedAnnotationTypes("*") 44 public class TypeParamBounds extends AbstractProcessor { 45 46 Elements elements; 47 Types types; 48 49 public void init(ProcessingEnvironment penv) { 50 super.init(penv); 51 elements = penv.getElementUtils(); 52 types = penv.getTypeUtils(); 53 } 54 55 public boolean process(Set<? extends TypeElement> annoTypes, 56 RoundEnvironment round) { 57 if (!round.processingOver()) 58 doit(annoTypes, round); 59 return true; 60 } 61 62 @Override 63 public SourceVersion getSupportedSourceVersion() { 64 return SourceVersion.latest(); 65 } 66 67 private void doit(Set<? extends TypeElement> annoTypes, 68 RoundEnvironment round) { 69 TypeElement gen = elements.getTypeElement("TypeParamBounds.Gen"); 70 71 // For each type parameter of Gen, compare its bounds with the 72 // bounds that are expected. 73 // 74 for (TypeParameterElement tparam : gen.getTypeParameters()) { 75 System.out.println(tparam); 76 List<? extends TypeMirror> bounds = tparam.getBounds(); 77 String[] expected = Gen.boundNames.get(tparam + ""); 78 79 if (bounds.size() != expected.length) 80 throw new AssertionError(); 81 int i = 0; 82 for (TypeMirror bound : bounds) { 83 Name got = types.asElement(bound).getSimpleName(); 84 String shoulda = expected[i++]; 85 System.out.println(" " + got); 86 if (!got.contentEquals(shoulda)) 87 throw new AssertionError(shoulda); 88 } 89 } 90 } 91 92 93 // Fodder for the processor 94 95 static class Gen<T, U extends Object, V extends Number, W extends U, 96 X extends Runnable, Y extends CharSequence & Runnable, 97 Z extends Object & Runnable> { 98 99 // The names of the bounds of each type parameter of Gen. 100 static Map<String, String[]> boundNames = 101 new HashMap<String, String[]>(); 102 103 static { 104 boundNames.put("T", new String[] {"Object"}); 105 boundNames.put("U", new String[] {"Object"}); 106 boundNames.put("V", new String[] {"Number"}); 107 boundNames.put("W", new String[] {"U"}); 108 boundNames.put("X", new String[] {"Runnable"}); 109 boundNames.put("Y", new String[] {"CharSequence", "Runnable"}); 110 boundNames.put("Z", new String[] {"Object", "Runnable"}); 111 } 112 } 113 }