test/tools/javac/lambda/MethodReference43.java

changeset 1415
01c9d4161882
child 1510
7873d37f5b37
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/test/tools/javac/lambda/MethodReference43.java	Sat Nov 17 19:01:03 2012 +0000
     1.3 @@ -0,0 +1,71 @@
     1.4 +/*
     1.5 + * Copyright (c) 2012, 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 + *  check that diamond inference is applied when using raw constructor reference qualifier
    1.32 + * @run main MethodReference43
    1.33 + */
    1.34 +public class MethodReference43 {
    1.35 +
    1.36 +    static int assertionCount = 0;
    1.37 +
    1.38 +    static void assertTrue(boolean cond) {
    1.39 +        assertionCount++;
    1.40 +        if (!cond)
    1.41 +            throw new AssertionError();
    1.42 +    }
    1.43 +
    1.44 +    interface SAM1 {
    1.45 +       Foo<?> m(String s);
    1.46 +    }
    1.47 +
    1.48 +    interface SAM2 {
    1.49 +       Foo<?> m(Integer s);
    1.50 +    }
    1.51 +
    1.52 +    interface SAM3 {
    1.53 +       Foo<?> m(Object o);
    1.54 +    }
    1.55 +
    1.56 +    interface SAM4 {
    1.57 +       Foo<Number> m(Integer o);
    1.58 +    }
    1.59 +
    1.60 +    static class Foo<X extends Number> {
    1.61 +        Foo(X x) { }
    1.62 +    }
    1.63 +
    1.64 +
    1.65 +    static void m(SAM1 s) { assertTrue(false); }
    1.66 +    static void m(SAM2 s) { assertTrue(true); }
    1.67 +    static void m(SAM3 s) { assertTrue(false); }
    1.68 +    static void m(SAM4 s) { assertTrue(false); }
    1.69 +
    1.70 +    public static void main(String[] args) {
    1.71 +        m(Foo::new);
    1.72 +        assertTrue(assertionCount == 1);
    1.73 +    }
    1.74 +}

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