langtools/test/tools/javac/lambda/LambdaScope01.java
author vromero
Wed, 23 Jan 2013 20:57:40 +0000
changeset 15384 5a8d00abf076
parent 14547 86d8d242b0c4
permissions -rw-r--r--
8006694: temporarily workaround combo tests are causing time out in several platforms Reviewed-by: jjg Contributed-by: maurizio.cimadamore@oracle.com
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
14547
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     1
/*
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     2
 * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     4
 *
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     7
 * published by the Free Software Foundation.
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     8
 *
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
     9
 * This code is distributed in the hope that it will be useful, but WITHOUT
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    10
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    11
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    12
 * version 2 for more details (a copy is included in the LICENSE file that
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    13
 * accompanied this code).
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    14
 *
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    15
 * You should have received a copy of the GNU General Public License version
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    16
 * 2 along with this work; if not, write to the Free Software Foundation,
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    17
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    18
 *
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    19
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    20
 * or visit www.oracle.com if you need additional information or have any
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    21
 * questions.
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    22
 */
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    23
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    24
/*
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    25
 * @test
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    26
 * @bug 8003280
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    27
 * @summary Add lambda tests
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    28
 *  basic test for capture of non-mutable locals
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    29
 * @author  Brian Goetz
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    30
 * @author  Maurizio Cimadamore
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    31
 * @run main LambdaScope01
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    32
 */
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    33
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    34
public class LambdaScope01 {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    35
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    36
    static int assertionCount = 0;
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    37
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    38
    static void assertTrue(boolean cond) {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    39
        assertionCount++;
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    40
        if (!cond)
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    41
            throw new AssertionError();
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    42
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    43
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    44
    interface TU<T, U> {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    45
        public T foo(U u);
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    46
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    47
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    48
    public static <T, U> T exec(TU<T, U> lambda, U x) {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    49
        return lambda.foo(x);
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    50
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    51
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    52
    public int n = 5;
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    53
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    54
    public int hashCode() {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    55
        throw new RuntimeException();
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    56
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    57
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    58
    public void test1() {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    59
        try {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    60
            int res = LambdaScope01.<Integer,Integer>exec((Integer x) -> x * hashCode(), 3);
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    61
        }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    62
        catch (RuntimeException e) {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    63
            assertTrue(true); //should throw
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    64
        }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    65
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    66
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    67
    public void test2() {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    68
        final int n = 10;
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    69
        int res = LambdaScope01.<Integer,Integer>exec((Integer x) -> x + n, 3);
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    70
        assertTrue(13 == res);
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    71
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    72
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    73
    public static void main(String[] args) {
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    74
        LambdaScope01 t = new LambdaScope01();
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    75
        t.test1();
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    76
        t.test2();
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    77
        assertTrue(assertionCount == 2);
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    78
    }
86d8d242b0c4 8003280: Add lambda tests
mcimadamore
parents:
diff changeset
    79
}