1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/test/tools/javac/lambda/methodReference/MethodRef4.java Sat Nov 17 19:01:03 2012 +0000 1.3 @@ -0,0 +1,79 @@ 1.4 +/* 1.5 + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. 1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1.7 + * 1.8 + * This code is free software; you can redistribute it and/or modify it 1.9 + * under the terms of the GNU General Public License version 2 only, as 1.10 + * published by the Free Software Foundation. 1.11 + * 1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT 1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1.15 + * version 2 for more details (a copy is included in the LICENSE file that 1.16 + * accompanied this code). 1.17 + * 1.18 + * You should have received a copy of the GNU General Public License version 1.19 + * 2 along with this work; if not, write to the Free Software Foundation, 1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 1.21 + * 1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 1.23 + * or visit www.oracle.com if you need additional information or have any 1.24 + * questions. 1.25 + */ 1.26 + 1.27 +/** 1.28 + * @test 1.29 + * @bug 8003280 1.30 + * @summary Add lambda tests 1.31 + * Test constructor reference 1.32 + * @compile MethodRef4.java 1.33 + * @run main MethodRef4 1.34 + */ 1.35 + 1.36 +public class MethodRef4 { 1.37 + 1.38 + static interface A {Fee<String> m();} 1.39 + 1.40 + static interface B {Fee<String> m(String s);} 1.41 + 1.42 + static interface C {Object m();} 1.43 + 1.44 + static class Fee<T> { 1.45 + 1.46 + private T t; 1.47 + 1.48 + public Fee() { 1.49 + System.out.println("Fee<T> instantiated"); 1.50 + } 1.51 + 1.52 + public Fee(T t) { 1.53 + this.t = t; 1.54 + System.out.println("Fee<T> instantiated: " + t); 1.55 + } 1.56 + 1.57 + public void make() { 1.58 + System.out.println(this + ": make()"); 1.59 + } 1.60 + } 1.61 + 1.62 + private static void assertTrue(boolean cond) { 1.63 + if (!cond) 1.64 + throw new AssertionError(); 1.65 + } 1.66 + 1.67 + public static void main(String[] args) { 1.68 + 1.69 + A a = Fee<String>::new; //constructor reference to Fee<T>() 1.70 + a.m().make(); 1.71 + 1.72 + B b = Fee<String>::new; //constructor reference to Fee<T>(String) 1.73 + b.m("hi").make(); 1.74 + 1.75 + C c = MethodRef4::new; //constructor reference to MethodRef4() 1.76 + assertTrue( c.m() instanceof MethodRef4 ); 1.77 + c = MethodRef4::new; //constructor reference to MethodRef4() 1.78 + assertTrue( c.m() instanceof MethodRef4 ); 1.79 + c = Fee<String>::new; //constructor reference to Fee<T>() 1.80 + assertTrue( c.m() instanceof Fee ); 1.81 + } 1.82 +}