Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/generics/Conditional.java
test/tools/javac/generics/Conditional.java
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| 1 /* | |
| 2 * Copyright (c) 2003, 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 4881179 4883239 | |
| 27 * @summary Rule for semantics of ?: in the presence of generics and generic class Class | |
| 28 * @author gafter | |
| 29 * | |
| 30 * @compile Conditional.java | |
| 31 */ | |
| 32 | |
| 33 package conditional; | |
| 34 | |
| 35 import java.io.Serializable; | |
| 36 | |
| 37 interface I {} | |
| 38 interface J {} | |
| 39 class A implements I, J {} | |
| 40 class B implements I, J {} | |
| 41 class C extends B {} | |
| 42 | |
| 43 class Conditional { | |
| 44 static boolean cond = String.class.getName().length() == 1; | |
| 45 public static void main(String[] args) { | |
| 46 Class c = cond ? A.class : B.class; | |
| 47 Class<?> d = cond ? A.class : B.class; | |
| 48 | |
| 49 Class<? extends B> e = cond ? B.class : C.class; | |
| 50 } | |
| 51 | |
| 52 void f(A a, B b) { | |
| 53 I i = cond ? a : b; | |
| 54 J j = cond ? a : b; | |
| 55 } | |
| 56 | |
| 57 // required for compatibility | |
| 58 Class g(Class a) { | |
| 59 return cond ? a : B.class; | |
| 60 } | |
| 61 | |
| 62 // required for compatibility | |
| 63 byte[] h(byte[] a, byte[] b) { | |
| 64 return cond ? a : b; | |
| 65 } | |
| 66 | |
| 67 // This one is hard because of the recursive F-bounds | |
| 68 // The naive result is the infinite type | |
| 69 // Class<? extends Number&Comparable<? extends Number&Comparable<? extends | |
| 70 // ... | |
| 71 Class<? extends Comparable<?>> c = | |
| 72 cond ? Integer.class : Float.class; | |
| 73 | |
| 74 Comparable<?> o = | |
| 75 cond ? true : 3; | |
| 76 | |
| 77 /* | |
| 78 | |
| 79 // See 4942040 | |
| 80 void f(Cloneable a, int[] b) { | |
| 81 Cloneable x = cond ? a : b; | |
| 82 } | |
| 83 void f(Serializable a, int[] b) { | |
| 84 Serializable x = cond ? a : b; | |
| 85 } | |
| 86 | |
| 87 // See 4941882 | |
| 88 void f(float[] a, int[] b) { | |
| 89 Serializable x = cond ? a : b; | |
| 90 } | |
| 91 */ | |
| 92 } |
