Wed, 14 May 2014 15:41:28 -0600
8034223: Most-specific should not have any special treatment for boxed vs. unboxed types
Summary: Rewrite most-specific logic to conform to JLS 8 15.12.2.5
Reviewed-by: vromero
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 | } |