Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/lambda/typeInference/InferenceTest789.java
test/tools/javac/lambda/typeInference/InferenceTest789.java
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| 1 /* | |
| 2 * Copyright (c) 2011, 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 import java.io.Serializable; | |
| 25 import java.util.Calendar; | |
| 26 | |
| 27 /** | |
| 28 * @test | |
| 29 * @bug 8003280 | |
| 30 * @summary Add lambda tests | |
| 31 * This test is for when lambda return type is inferred from target type | |
| 32 * @compile InferenceTest789.java | |
| 33 * @run main InferenceTest789 | |
| 34 */ | |
| 35 | |
| 36 public class InferenceTest789 { | |
| 37 | |
| 38 private static void assertTrue(boolean b) { | |
| 39 if(!b) | |
| 40 throw new AssertionError(); | |
| 41 } | |
| 42 | |
| 43 public static void main(String[] args) { | |
| 44 InferenceTest789 test = new InferenceTest789(); | |
| 45 test.method1(() -> 1); | |
| 46 SAM1<? extends Number> sam1 = () -> 1.0; | |
| 47 SAM1<? extends Serializable> sam1_2 = () -> "a"; | |
| 48 SAM1<? extends Comparable<?>> sam1_3 = () -> Calendar.getInstance(); | |
| 49 SAM1<?> sam1_4 = () -> 1.5f; | |
| 50 | |
| 51 SAM2<Number> sam2 = a -> 1; | |
| 52 SAM2<? extends Serializable> sam2_2 = a -> 1; | |
| 53 } | |
| 54 | |
| 55 void method1(SAM1<?> s) { | |
| 56 System.out.println("s.m1()=" + s.m1() + " s.m1().getClass()=" + s.m1().getClass()); | |
| 57 assertTrue(s.m1().equals(new Integer(1))); | |
| 58 } | |
| 59 | |
| 60 interface SAM1<T> { | |
| 61 T m1(); | |
| 62 } | |
| 63 | |
| 64 interface SAM2<T extends Serializable> { | |
| 65 T m2(T t); | |
| 66 } | |
| 67 } |
