Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/lambda/methodReference/MethodRef7.java
test/tools/javac/lambda/methodReference/MethodRef7.java
- changeset 1415
- 01c9d4161882
- parent 0
- 959103a6100f
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| 1414:843d3b191773 | 1415:01c9d4161882 |
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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 /** | |
| 25 * @test | |
| 26 * @bug 8003280 | |
| 27 * @summary Add lambda tests | |
| 28 * Test that parameter types are inferred from SAM descriptor when method parameters are elided, | |
| 29 with different types of method references | |
| 30 * @compile MethodRef7.java | |
| 31 * @run main MethodRef7 | |
| 32 */ | |
| 33 | |
| 34 public class MethodRef7 { | |
| 35 | |
| 36 static interface A {void m();} | |
| 37 | |
| 38 static interface A2 {void m(int n);} | |
| 39 | |
| 40 static interface B {String m();} | |
| 41 | |
| 42 static interface B2 {String m(int n);} | |
| 43 | |
| 44 static interface C {String m(MethodRef7 mr);} | |
| 45 | |
| 46 static interface C2 {String m(MethodRef7 mr, int n);} | |
| 47 | |
| 48 static interface D {Fee<String> m();} | |
| 49 | |
| 50 static interface D2 {Fee<String> m(String s);} | |
| 51 | |
| 52 static class Fee<T> { | |
| 53 | |
| 54 public Fee() { | |
| 55 System.out.println("Fee<T> instantiated"); | |
| 56 } | |
| 57 | |
| 58 public Fee(String s) { | |
| 59 System.out.println("Fee<T> instantiated: " + s); | |
| 60 } | |
| 61 } | |
| 62 | |
| 63 private static void assertTrue(boolean cond) { | |
| 64 if (!cond) | |
| 65 throw new AssertionError(); | |
| 66 } | |
| 67 | |
| 68 static void bar() { | |
| 69 System.out.println("MethodRef_neg1.bar()"); | |
| 70 } | |
| 71 | |
| 72 static void bar(int x) { | |
| 73 System.out.println("MethodRef_neg1.bar(int) " + x); | |
| 74 } | |
| 75 | |
| 76 String wahoo() { | |
| 77 return "wahoo"; | |
| 78 } | |
| 79 | |
| 80 String wahoo(int x) { | |
| 81 return "wahoo " + x; | |
| 82 } | |
| 83 | |
| 84 public static void main(String[] args) { | |
| 85 | |
| 86 A a = MethodRef7::bar; //static reference to bar() | |
| 87 a.m(); | |
| 88 A2 a2 = MethodRef7::bar; //static reference to bar(int x) | |
| 89 a2.m(10); | |
| 90 | |
| 91 MethodRef7 mr = new MethodRef7(); | |
| 92 B b = mr::wahoo; //instance reference to wahoo() | |
| 93 assertTrue(b.m().equals("wahoo")); | |
| 94 B2 b2 = mr::wahoo; //instance reference to wahoo(int x) | |
| 95 assertTrue(b2.m(1).equals("wahoo 1")); | |
| 96 | |
| 97 C c = MethodRef7::wahoo; //unbound reference to wahoo() | |
| 98 assertTrue(c.m(mr).equals("wahoo")); | |
| 99 C2 c2 = MethodRef7::wahoo; //unbound reference to wahoo(int x) | |
| 100 assertTrue(c2.m(mr, 2).equals("wahoo 2")); | |
| 101 | |
| 102 D d = Fee<String>::new; //constructor reference to Fee() | |
| 103 D2 d2 = Fee<String>::new; //constructor reference to Fee(String s) | |
| 104 } | |
| 105 } |
