langtools/test/tools/javac/lambda/MostSpecific04.java
author duke
Wed, 05 Jul 2017 23:01:50 +0200
changeset 44228 e46434c65a2b
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permissions -rw-r--r--
Merge
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/*
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 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 8003280
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 * @summary Add lambda tests
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 *  Structural most specific doesn't handle cases with wildcards in functional interfaces
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 * @compile/fail/ref=MostSpecific04.out -XDrawDiagnostics MostSpecific04.java
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 */
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public class MostSpecific04 {
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    interface DoubleMapper<T> {
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        double map(T t);
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    }
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    interface LongMapper<T> {
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        long map(T t);
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    }
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    static class MyList<E> {
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        void map(DoubleMapper<? super E> m) { }
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        void map(LongMapper<? super E> m) { }
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    }
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    public static void main(String[] args) {
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        MyList<String> ls = new MyList<String>();
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        ls.map(e->e.length()); //ambiguous - implicit
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        ls.map((String e)->e.length()); //ok
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    }
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}