test/tools/javac/generics/diamond/pos/Pos03.java

Wed, 14 Apr 2010 12:31:55 +0100

author
mcimadamore
date
Wed, 14 Apr 2010 12:31:55 +0100
changeset 537
9d9d08922405
child 543
97b6fa97b8dd
permissions
-rw-r--r--

6939620: Switch to 'complex' diamond inference scheme
Summary: Implement new inference scheme for diamond operator that takes into account type of actual arguments supplied to constructor
Reviewed-by: jjg, darcy

     1 /*
     2  * Copyright 2010 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  */
    24 /*
    25  * @test
    26  * @bug 6939620
    27  *
    28  * @summary  Switch to 'complex' diamond inference scheme
    29  * @author mcimadamore
    30  * @compile Pos03.java
    31  * @run main Pos03
    32  *
    33  */
    35 public class Pos03<U> {
    37     class Foo<V> {
    38         Foo(V x) {}
    39         <Z> Foo(V x, Z z) {}
    40     }
    42     void testSimple() {
    43         Foo<Integer> f1 = new Foo<>(1);
    44         Foo<? extends Integer> f2 = new Foo<>(1);
    45         Foo<?> f3 = new Foo<>(1);
    46         Foo<? super Integer> f4 = new Foo<>(1);
    48         Foo<Integer> f5 = new Foo<>(1){};
    49         Foo<? extends Integer> f6 = new Foo<>(1){};
    50         Foo<?> f7 = new Foo<>(1){};
    51         Foo<? super Integer> f8 = new Foo<>(1){};
    53         Foo<Integer> f9 = new Foo<>(1, "");
    54         Foo<? extends Integer> f10 = new Foo<>(1, "");
    55         Foo<?> f11 = new Foo<>(1, "");
    56         Foo<? super Integer> f12 = new Foo<>(1, "");
    58         Foo<Integer> f13 = new Foo<>(1, ""){};
    59         Foo<? extends Integer> f14 = new Foo<>(1, ""){};
    60         Foo<?> f15 = new Foo<>(1, ""){};
    61         Foo<? super Integer> f16 = new Foo<>(1, ""){};
    62     }
    64     void testQualified_1() {
    65         Foo<Integer> f1 = new Pos03<U>.Foo<>(1);
    66         Foo<? extends Integer> f2 = new Pos03<U>.Foo<>(1);
    67         Foo<?> f3 = new Pos03<U>.Foo<>(1);
    68         Foo<? super Integer> f4 = new Pos03<U>.Foo<>(1);
    70         Foo<Integer> f5 = new Pos03<U>.Foo<>(1){};
    71         Foo<? extends Integer> f6 = new Pos03<U>.Foo<>(1){};
    72         Foo<?> f7 = new Pos03<U>.Foo<>(1){};
    73         Foo<? super Integer> f8 = new Pos03<U>.Foo<>(1){};
    75         Foo<Integer> f9 = new Pos03<U>.Foo<>(1, "");
    76         Foo<? extends Integer> f10 = new Pos03<U>.Foo<>(1, "");
    77         Foo<?> f11 = new Pos03<U>.Foo<>(1, "");
    78         Foo<? super Integer> f12 = new Pos03<U>.Foo<>(1, "");
    80         Foo<Integer> f13 = new Pos03<U>.Foo<>(1, ""){};
    81         Foo<? extends Integer> f14 = new Pos03<U>.Foo<>(1, ""){};
    82         Foo<?> f15 = new Pos03<U>.Foo<>(1, ""){};
    83         Foo<? super Integer> f16 = new Pos03<U>.Foo<>(1, ""){};
    84     }
    86     void testQualified_2(Pos03<U> p) {
    87         Foo<Integer> f1 = p.new Foo<>(1);
    88         Foo<? extends Integer> f2 = p.new Foo<>(1);
    89         Foo<?> f3 = p.new Foo<>(1);
    90         Foo<? super Integer> f4 = p.new Foo<>(1);
    92         Foo<Integer> f5 = p.new Foo<>(1){};
    93         Foo<? extends Integer> f6 = p.new Foo<>(1){};
    94         Foo<?> f7 = p.new Foo<>(1){};
    95         Foo<? super Integer> f8 = p.new Foo<>(1){};
    97         Foo<Integer> f9 = p.new Foo<>(1, "");
    98         Foo<? extends Integer> f10 = p.new Foo<>(1, "");
    99         Foo<?> f11 = p.new Foo<>(1, "");
   100         Foo<? super Integer> f12 = p.new Foo<>(1, "");
   102         Foo<Integer> f13 = p.new Foo<>(1, ""){};
   103         Foo<? extends Integer> f14 = p.new Foo<>(1, ""){};
   104         Foo<?> f15 = p.new Foo<>(1, ""){};
   105         Foo<? super Integer> f16 = p.new Foo<>(1, ""){};
   106     }
   108     public static void main(String[] args) {
   109         Pos03<String> p3 = new Pos03<>();
   110         p3.testSimple();
   111         p3.testQualified_1();
   112         p3.testQualified_2(p3);
   113     }
   114 }

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