jdk8-mips64-public/langtools: test/tools/javac/generics/odersky/Test4.java@683b3e7e05a7

     1 /*

     2  * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @ bug

    27  * @summary Positive regression test from odersky

    28  * @author odersky

    29  *

    30  * @compile  Test4.java

    31  */

    33 class Test4 {

    34     interface I {}

    35     interface J {}

    36     static class C implements I, J {}

    37     static class D implements I, J {}

    39     interface Ord {}

    41     static C c = new C();

    42     static D d = new D();

    44     static <B> List<B> nil() { return new List<B>(); }

    45     static <A, B extends A> A f(A x, B y) { return x; }

    46     static <A, B extends A> B g(List<A> x, List<B> y) { return y.head; }

    48     static <A> List<A> cons(A x, List<A> xs) { return xs.prepend(x); }

    49     static <A> Cell<A> makeCell(A x) { return new Cell<A>(x); }

    50     static <A> A id(A x) { return x; }

    52     static Integer i = new Integer(1);

    53     static Number n = i;

    55     public static void main(String[] args) {

    56         Number x = f(n, i);

    57         String xy = g(cons("abc", Test4.<String>nil()), Test4.<String>nil());

    58         System.out.println(g(cons("abc", nil()), nil()));

    59     }

    60 }

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