jdk8-mips64-public/langtools: test/tools/javac/lambda/LambdaCapture01.java@5ddecb91d843

8009545: Graph inference: dependencies between inference variables should be set during incorporation
Summary: Move all transitivity checks into the incorporation round
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  *  basic test for capture of non-mutable locals

    29  * @author  Brian Goetz

    30  * @author  Maurizio Cimadamore

    31  * @run main LambdaCapture01

    32  */

    34 public class LambdaCapture01 {

    36     static int assertionCount = 0;

    38     static void assertTrue(boolean cond) {

    39         assertionCount++;

    40         if (!cond)

    41             throw new AssertionError();

    42     }

    44     interface Tester {

    45         void test();

    46     }

    48     interface TU<T, U> {

    49         public T foo(U u);

    50     }

    52     public static <T, U> T exec(TU<T, U> lambda, U x) {

    53         return lambda.foo(x);

    54     }

    56     public int n = 5;

    58     //Simple local capture

    59     void test1() {

    60         final int N = 1;

    61         int res = LambdaCapture01.<Integer,Integer>exec((Integer x) -> x + N, 3);

    62         assertTrue(4 == res);

    63     }

    65     //Local capture with multiple scopes (anon class)

    66     void test2() {

    67         final int N = 1;

    68         new Tester() {

    69             public void test() {

    70                 final int M = 2;

    71                 int res = LambdaCapture01.<Integer,Integer>exec((Integer x) -> x + N + M, 3);

    72                 assertTrue(6 == res);

    73             }

    74         }.test();

    75     }

    77     //Local capture with multiple scopes (local class)

    78     void test3() {

    79         final int N = 1;

    80         class MyTester implements Tester {

    81             public void test() {

    82                 final int M = 2;

    83                 int res = LambdaCapture01.<Integer,Integer>exec((Integer x) -> x + N + M, 3);

    84                 assertTrue(6 == res);

    85             }

    86         }

    87         new MyTester().test();

    88     }

    90     //access to field from enclosing scope

    91     void test4() {

    92         final int N = 4;

    93         int res1 = LambdaCapture01.<Integer,Integer>exec((Integer x) -> x + n + N, 3);

    94         assertTrue(12 == res1);

    95         int res2 = LambdaCapture01.<Integer,Integer>exec((Integer x) -> x + LambdaCapture01.this.n + N, 3);

    96         assertTrue(12 == res2);

    97     }

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

   100         LambdaCapture01 t = new LambdaCapture01();

   101         t.test1();

   102         t.test2();

   103         t.test3();

   104         t.test4();

   105         assertTrue(assertionCount == 5);

   106     }

   107 }

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

test/tools/javac/lambda/LambdaCapture01.java@5ddecb91d843

test/tools/javac/lambda/LambdaCapture01.java