Thu, 10 Oct 2013 14:58:04 +0200
8001931: The new build system whitespace cleanup
Reviewed-by: tbell, simonis, erikj
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | */ |
aoqi@0 | 23 | |
aoqi@0 | 24 | /* |
aoqi@0 | 25 | * @test |
aoqi@0 | 26 | * @bug 8003280 |
aoqi@0 | 27 | * @summary Add lambda tests |
aoqi@0 | 28 | * basic test for capture of non-mutable locals |
aoqi@0 | 29 | * @author Brian Goetz |
aoqi@0 | 30 | * @author Maurizio Cimadamore |
aoqi@0 | 31 | * @run main LambdaCapture02 |
aoqi@0 | 32 | */ |
aoqi@0 | 33 | |
aoqi@0 | 34 | public class LambdaCapture02 { |
aoqi@0 | 35 | |
aoqi@0 | 36 | static int assertionCount = 0; |
aoqi@0 | 37 | |
aoqi@0 | 38 | static void assertTrue(boolean cond) { |
aoqi@0 | 39 | assertionCount++; |
aoqi@0 | 40 | if (!cond) |
aoqi@0 | 41 | throw new AssertionError(); |
aoqi@0 | 42 | } |
aoqi@0 | 43 | |
aoqi@0 | 44 | interface Tester { |
aoqi@0 | 45 | void test(); |
aoqi@0 | 46 | } |
aoqi@0 | 47 | |
aoqi@0 | 48 | interface TU<T, U> { |
aoqi@0 | 49 | public T foo(U u); |
aoqi@0 | 50 | } |
aoqi@0 | 51 | |
aoqi@0 | 52 | public static <T, U> T exec(TU<T, U> lambda, U x) { |
aoqi@0 | 53 | return lambda.foo(x); |
aoqi@0 | 54 | } |
aoqi@0 | 55 | |
aoqi@0 | 56 | public Integer n = 5; |
aoqi@0 | 57 | |
aoqi@0 | 58 | //Simple local capture |
aoqi@0 | 59 | void test1() { |
aoqi@0 | 60 | final Integer N = 1; |
aoqi@0 | 61 | int res = LambdaCapture02.<Integer,Integer>exec((Integer x) -> x + N, 3); |
aoqi@0 | 62 | assertTrue(4 == res); |
aoqi@0 | 63 | } |
aoqi@0 | 64 | |
aoqi@0 | 65 | //Local capture with multiple scopes (anon class) |
aoqi@0 | 66 | void test2() { |
aoqi@0 | 67 | final Integer N = 1; |
aoqi@0 | 68 | new Tester() { |
aoqi@0 | 69 | public void test() { |
aoqi@0 | 70 | final Integer M = 2; |
aoqi@0 | 71 | int res = LambdaCapture02.<Integer,Integer>exec((Integer x) -> x + N + M, 3); |
aoqi@0 | 72 | assertTrue(6 == res); |
aoqi@0 | 73 | } |
aoqi@0 | 74 | }.test(); |
aoqi@0 | 75 | } |
aoqi@0 | 76 | |
aoqi@0 | 77 | //Local capture with multiple scopes (local class) |
aoqi@0 | 78 | void test3() { |
aoqi@0 | 79 | final Integer N = 1; |
aoqi@0 | 80 | class MyTester implements Tester { |
aoqi@0 | 81 | public void test() { |
aoqi@0 | 82 | final Integer M = 2; |
aoqi@0 | 83 | int res = LambdaCapture02.<Integer,Integer>exec((Integer x) -> x + N + M, 3); |
aoqi@0 | 84 | assertTrue(6 == res); |
aoqi@0 | 85 | } |
aoqi@0 | 86 | } |
aoqi@0 | 87 | new MyTester().test(); |
aoqi@0 | 88 | } |
aoqi@0 | 89 | |
aoqi@0 | 90 | //access to field from enclosing scope |
aoqi@0 | 91 | void test4() { |
aoqi@0 | 92 | final Integer N = 4; |
aoqi@0 | 93 | int res1 = LambdaCapture02.<Integer,Integer>exec((Integer x) -> x + n + N, 3); |
aoqi@0 | 94 | assertTrue(12 == res1); |
aoqi@0 | 95 | int res2 = LambdaCapture02.<Integer,Integer>exec((Integer x) -> x + LambdaCapture02.this.n + N, 3); |
aoqi@0 | 96 | assertTrue(12 == res2); |
aoqi@0 | 97 | } |
aoqi@0 | 98 | |
aoqi@0 | 99 | public static void main(String[] args) { |
aoqi@0 | 100 | LambdaCapture02 t = new LambdaCapture02(); |
aoqi@0 | 101 | t.test1(); |
aoqi@0 | 102 | t.test2(); |
aoqi@0 | 103 | t.test3(); |
aoqi@0 | 104 | t.test4(); |
aoqi@0 | 105 | assertTrue(assertionCount == 5); |
aoqi@0 | 106 | } |
aoqi@0 | 107 | } |