Sat, 22 Dec 2018 13:10:38 -0800
Added tag jdk8u202-b25 for changeset 15d8c732039b
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 */
24 /*
25 * @test
26 * @bug 8003280
27 * @summary Add lambda tests
28 * test for capture of non-mutable locals/outer fields in multiple scopes
29 * @author Maurizio Cimadamore
30 * @run main LambdaCapture03
31 */
33 public class LambdaCapture03 {
35 static int assertionCount = 0;
37 static void assertTrue(boolean cond) {
38 assertionCount++;
39 if (!cond)
40 throw new AssertionError();
41 }
43 interface Tester {
44 void test();
45 }
47 interface TU<T, U> {
48 public T foo(U u);
49 }
51 public static <T, U> T exec(TU<T, U> lambda, U x) {
52 return lambda.foo(x);
53 }
55 Integer n1 = 10;
57 void test1() {
58 final Integer N1 = 1;
59 class A {
60 Integer n2 = 20;
61 void test() {
62 final Integer N2 = 2;
63 class B {
64 void test() {
65 final Integer N3 = 3;
66 int res = LambdaCapture03.exec((Integer x) -> x + n1 + n2 + N1 + N2 + N3, 30);
67 assertTrue(res == 66);
68 }
69 }
70 new B().test();
71 }
72 }
73 new A().test();
74 }
76 void test2() {
77 final Integer N1 = 1;
78 new Tester() {
79 Integer n2 = 20;
80 public void test() {
81 final Integer N2 = 2;
82 new Tester() {
83 public void test() {
84 final Integer N3 = 3;
85 int res = LambdaCapture03.exec((Integer x) -> x + n1 + n2 + N1 + N2 + N3, 30);
86 assertTrue(res == 66);
87 }
88 }.test();
89 }
90 }.test();
91 }
93 public static void main(String[] args) {
94 LambdaCapture03 t = new LambdaCapture03();
95 t.test1();
96 t.test2();
97 assertTrue(assertionCount == 2);
98 }
99 }