langtools/test/tools/javac/lambda/MethodReference42.java
author mcimadamore
Tue, 12 Mar 2013 16:02:13 +0000
changeset 16340 3c0af3413e0f
parent 14547 86d8d242b0c4
child 19914 d86271bd430a
permissions -rw-r--r--
8008540: Constructor reference to non-reifiable array should be rejected 8008539: Spurious error when constructor reference mention an interface type 8008538: Constructor reference accepts wildcard parameterized types Summary: Overhaul of Check.checkConstructorRefType Reviewed-by: jjg

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 */

/*
 * @test
 * @bug 8003280
 * @summary Add lambda tests
 *  check that diamond inference is applied when using raw constructor reference qualifier
 * @run main MethodReference42
 */
public class MethodReference42 {

    static int assertionCount = 0;

    static void assertTrue(boolean cond) {
        assertionCount++;
        if (!cond)
            throw new AssertionError();
    }

    static class SuperFoo<X> { }

    static class Foo<X extends Number> extends SuperFoo<X> { }

    interface SAM1 {
        SuperFoo<String> m();
    }

    interface SAM2 {
        SuperFoo<Integer> m();
    }

    interface SAM3 {
        SuperFoo<Object> m();
    }

    static void m(SAM1 s) { assertTrue(false); }
    static void m(SAM2 s) { assertTrue(true); }
    static void m(SAM3 s) { assertTrue(false); }

    public static void main(String[] args) {
        m(Foo::new);
        assertTrue(assertionCount == 1);
    }
}