test/tools/javac/lambda/typeInference/InferenceTest2b.java

Mon, 21 Jan 2013 20:13:56 +0000

author
mcimadamore
date
Mon, 21 Jan 2013 20:13:56 +0000
changeset 1510
7873d37f5b37
parent 1415
01c9d4161882
child 1869
5c548a8542b8
permissions
-rw-r--r--

8005244: Implement overload resolution as per latest spec EDR
Summary: Add support for stuck expressions and provisional applicability
Reviewed-by: jjg

     1 /*
     2  * Copyright (c) 2011, 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 import java.util.*;
    26 /**
    27  * @test
    28  * @bug 8003280
    29  * @summary Add lambda tests
    30  *   Parameter types inferred from target type in generics with wildcard
    31  * @compile InferenceTest2b.java
    32  * @run main InferenceTest2b
    33  */
    35 public class InferenceTest2b {
    37     private static void assertTrue(boolean cond) {
    38         if (!cond)
    39             throw new AssertionError();
    40     }
    42     public static void main(String[] args) {
    44         InferenceTest2b test = new InferenceTest2b();
    46         test.m1((a, b) -> {return a;});
    47         test.m2((a, b) -> {return a;});
    48         test.m3((a, b) -> a);
    49     }
    51     interface SAM6<T> {
    52         T m6(T a, T b);
    53     }
    55     void m1(SAM6<? super List<?>> s) {
    56         System.out.println("m1()");
    57         Stack<String> a = new Stack<String>();
    58         ArrayList<String> b = new ArrayList<String>();
    59         assertTrue(s.m6(a, b) == a);
    61         Vector<?> c = null;
    62         assertTrue(s.m6(c, b) == c);
    63     }
    65     void m2(SAM6<? super Integer> s) {
    66         System.out.println("m2()");
    67         assertTrue(s.m6(1, 2) == 1);
    68     }
    70     void m3(SAM6<? super Calendar> s) {
    71         System.out.println("m3()");
    72         Calendar gc = Calendar.getInstance();
    73         GregorianCalendar gc2 = new GregorianCalendar();
    74         assertTrue(s.m6(gc, gc2) == gc);
    75     }
    76 }

mercurial