test/tools/javac/lambda/LambdaScope01.java

Tue, 12 Mar 2013 16:02:43 +0000

author
mcimadamore
date
Tue, 12 Mar 2013 16:02:43 +0000
changeset 1628
5ddecb91d843
parent 0
959103a6100f
permissions
-rw-r--r--

8009545: Graph inference: dependencies between inference variables should be set during incorporation
Summary: Move all transitivity checks into the incorporation round
Reviewed-by: jjg

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

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