test/tools/javac/lambda/methodReference/MethodRef6.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 * Test that the most specific reference is selected when method parameters are elided
aoqi@0 29 * @compile MethodRef6.java
aoqi@0 30 * @run main MethodRef6
aoqi@0 31 */
aoqi@0 32
aoqi@0 33 public class MethodRef6 {
aoqi@0 34
aoqi@0 35 static interface A { String make(Integer i); }
aoqi@0 36
aoqi@0 37 static interface B { String make(Number i); }
aoqi@0 38
aoqi@0 39 private static void assertTrue(boolean cond) {
aoqi@0 40 if (!cond)
aoqi@0 41 throw new AssertionError();
aoqi@0 42 }
aoqi@0 43
aoqi@0 44 static String m(Object o) {
aoqi@0 45 return "Object " + o;
aoqi@0 46 }
aoqi@0 47
aoqi@0 48 static String m(Number n) {
aoqi@0 49 return "Number " + n;
aoqi@0 50 }
aoqi@0 51
aoqi@0 52 static String m(Integer i) {
aoqi@0 53 return "Integer " + i;
aoqi@0 54 }
aoqi@0 55
aoqi@0 56 static String m(int i) {
aoqi@0 57 return "int " + i;
aoqi@0 58 }
aoqi@0 59
aoqi@0 60 public static void main(String[] args) {
aoqi@0 61 A a = MethodRef6::m;
aoqi@0 62 assertTrue(a.make(1).equals("Integer 1"));//method parameter type inferred from SAM descriptor, boxing applied
aoqi@0 63 B b = MethodRef6::m;
aoqi@0 64 assertTrue(b.make(1).equals("Number 1"));//method parameter type inferred from SAM descriptor, boxing and widen applied
aoqi@0 65 }
aoqi@0 66 }

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