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/MostSpecific08.java	Wed Apr 27 01:34:52 2016 +0800
     1.3 @@ -0,0 +1,64 @@
     1.4 +/*
     1.5 + * Copyright (c) 2013, 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 8008813
    1.30 + * @summary Structural most specific fails when method reference is passed to overloaded method
    1.31 + * @compile/fail/ref=MostSpecific08.out -XDrawDiagnostics MostSpecific08.java
    1.32 + */
    1.33 +class MostSpecific08 {
    1.34 +
    1.35 +    static class C {
    1.36 +        int getInt() { return -1; }
    1.37 +        Integer getInteger() { return -1; }
    1.38 +    }
    1.39 +
    1.40 +    interface IntResult { }
    1.41 +    interface ReferenceResult<X> { }
    1.42 +
    1.43 +    interface PrimitiveFunction {
    1.44 +        int f(C c);
    1.45 +    }
    1.46 +
    1.47 +    interface ReferenceFunction<X> {
    1.48 +        X f(C c);
    1.49 +    }
    1.50 +
    1.51 +    interface Tester {
    1.52 +        IntResult apply(PrimitiveFunction p);
    1.53 +        <Z> ReferenceResult<Z> apply(ReferenceFunction<Z> p);
    1.54 +    }
    1.55 +
    1.56 +    void testMref(Tester t) {
    1.57 +        IntResult pr = t.apply(C::getInt); //ok - unoverloaded mref
    1.58 +        ReferenceResult<Integer> rr = t.apply(C::getInteger); //ok - unoverloaded mref
    1.59 +    }
    1.60 +
    1.61 +    void testLambda(Tester t) {
    1.62 +        IntResult pr1 = t.apply(c->c.getInt()); //ambiguous - implicit
    1.63 +        IntResult pr2 = t.apply((C c)->c.getInt()); //ok
    1.64 +        ReferenceResult<Integer> rr1 = t.apply(c->c.getInteger()); //ambiguous - implicit
    1.65 +        ReferenceResult<Integer> rr2 = t.apply((C c)->c.getInteger()); //ok
    1.66 +    }
    1.67 +}