Mercurial > jdk8-mips64-public > langtools / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/LambdaScope01.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,79 @@
     1.4 +/*
     1.5 + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.
    1.11 + *
    1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.14 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.15 + * version 2 for more details (a copy is included in the LICENSE file that
    1.16 + * accompanied this code).
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License version
    1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.21 + *
    1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.23 + * or visit www.oracle.com if you need additional information or have any
    1.24 + * questions.
    1.25 + */
    1.26 +
    1.27 +/*
    1.28 + * @test
    1.29 + * @bug 8003280
    1.30 + * @summary Add lambda tests
    1.31 + *  basic test for capture of non-mutable locals
    1.32 + * @author  Brian Goetz
    1.33 + * @author  Maurizio Cimadamore
    1.34 + * @run main LambdaScope01
    1.35 + */
    1.36 +
    1.37 +public class LambdaScope01 {
    1.38 +
    1.39 +    static int assertionCount = 0;
    1.40 +
    1.41 +    static void assertTrue(boolean cond) {
    1.42 +        assertionCount++;
    1.43 +        if (!cond)
    1.44 +            throw new AssertionError();
    1.45 +    }
    1.46 +
    1.47 +    interface TU<T, U> {
    1.48 +        public T foo(U u);
    1.49 +    }
    1.50 +
    1.51 +    public static <T, U> T exec(TU<T, U> lambda, U x) {
    1.52 +        return lambda.foo(x);
    1.53 +    }
    1.54 +
    1.55 +    public int n = 5;
    1.56 +
    1.57 +    public int hashCode() {
    1.58 +        throw new RuntimeException();
    1.59 +    }
    1.60 +
    1.61 +    public void test1() {
    1.62 +        try {
    1.63 +            int res = LambdaScope01.<Integer,Integer>exec((Integer x) -> x * hashCode(), 3);
    1.64 +        }
    1.65 +        catch (RuntimeException e) {
    1.66 +            assertTrue(true); //should throw
    1.67 +        }
    1.68 +    }
    1.69 +
    1.70 +    public void test2() {
    1.71 +        final int n = 10;
    1.72 +        int res = LambdaScope01.<Integer,Integer>exec((Integer x) -> x + n, 3);
    1.73 +        assertTrue(13 == res);
    1.74 +    }
    1.75 +
    1.76 +    public static void main(String[] args) {
    1.77 +        LambdaScope01 t = new LambdaScope01();
    1.78 +        t.test1();
    1.79 +        t.test2();
    1.80 +        assertTrue(assertionCount == 2);
    1.81 +    }
    1.82 +}