|
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 * basic test for capture of non-mutable locals |
|
29 * @author Brian Goetz |
|
30 * @author Maurizio Cimadamore |
|
31 * @run main LambdaScope01 |
|
32 */ |
|
33 |
|
34 public class LambdaScope01 { |
|
35 |
|
36 static int assertionCount = 0; |
|
37 |
|
38 static void assertTrue(boolean cond) { |
|
39 assertionCount++; |
|
40 if (!cond) |
|
41 throw new AssertionError(); |
|
42 } |
|
43 |
|
44 interface TU<T, U> { |
|
45 public T foo(U u); |
|
46 } |
|
47 |
|
48 public static <T, U> T exec(TU<T, U> lambda, U x) { |
|
49 return lambda.foo(x); |
|
50 } |
|
51 |
|
52 public int n = 5; |
|
53 |
|
54 public int hashCode() { |
|
55 throw new RuntimeException(); |
|
56 } |
|
57 |
|
58 public void test1() { |
|
59 try { |
|
60 int res = LambdaScope01.<Integer,Integer>exec((Integer x) -> x * hashCode(), 3); |
|
61 } |
|
62 catch (RuntimeException e) { |
|
63 assertTrue(true); //should throw |
|
64 } |
|
65 } |
|
66 |
|
67 public void test2() { |
|
68 final int n = 10; |
|
69 int res = LambdaScope01.<Integer,Integer>exec((Integer x) -> x + n, 3); |
|
70 assertTrue(13 == res); |
|
71 } |
|
72 |
|
73 public static void main(String[] args) { |
|
74 LambdaScope01 t = new LambdaScope01(); |
|
75 t.test1(); |
|
76 t.test2(); |
|
77 assertTrue(assertionCount == 2); |
|
78 } |
|
79 } |