jdk8-mips64-public/langtools: test/tools/javac/lambda/typeInference/InferenceTest11.java@7873d37f5b37

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 /**

    25  * @test

    26  * @bug 8003280

    27  * @summary Add lambda tests

    28  *   This test is for self referential and recursive lambda expression that have type inference

    29  * @compile InferenceTest11.java

    30  * @run main InferenceTest11

    31  */

    33 public class InferenceTest11 {

    35     private static void assertTrue(boolean b) {

    36         if(!b)

    37             throw new AssertionError();

    38     }

    40     static Func<Integer, Integer> f1;

    41     static Func<Integer, ? extends Number> f2;

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

    45         f1 = n -> {

    46             if(n <= 0)

    47                 return 0;

    48             if(n == 1)

    49                 return 1;

    50             return f1.m(n-1) + f1.m(n-2);

    51         };

    52         assertTrue(f1.m(-1) == 0);

    53         assertTrue(f1.m(0) == 0);

    54         assertTrue(f1.m(10) == 55);

    56         f2 = n -> {

    57             if(n <= 1)

    58             return 1.0;

    59             return 2 * (Double)f2.m(n-1) + 1;

    60         };

    61         assertTrue(f2.m(4).doubleValue() == 15.0);

    62     }

    64     interface Func<T, V> {

    65         V m(T t);

    66     }

    67 }

Mercurial > jdk8-mips64-public > langtools / file revision

test/tools/javac/lambda/typeInference/InferenceTest11.java@7873d37f5b37

test/tools/javac/lambda/typeInference/InferenceTest11.java