• file
• revisions
• annotate
• diff
• comparison
• raw

test/tools/javac/lambda/methodReference/MethodRef4.java@01c9d4161882 (annotated)

test/tools/javac/lambda/methodReference/MethodRef4.java

Sat, 17 Nov 2012 19:01:03 +0000

author

mcimadamore

date

Sat, 17 Nov 2012 19:01:03 +0000

changeset 1415

01c9d4161882

parent 0

959103a6100f

permissions

-rw-r--r--

8003280: Add lambda tests
Summary: Turn on lambda expression, method reference and default method support
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 constructor reference
aoqi@0	29	* @compile MethodRef4.java
aoqi@0	30	* @run main MethodRef4
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	public class MethodRef4 {
aoqi@0	34
aoqi@0	35	static interface A {Fee<String> m();}
aoqi@0	36
aoqi@0	37	static interface B {Fee<String> m(String s);}
aoqi@0	38
aoqi@0	39	static interface C {Object m();}
aoqi@0	40
aoqi@0	41	static class Fee<T> {
aoqi@0	42
aoqi@0	43	private T t;
aoqi@0	44
aoqi@0	45	public Fee() {
aoqi@0	46	System.out.println("Fee<T> instantiated");
aoqi@0	47	}
aoqi@0	48
aoqi@0	49	public Fee(T t) {
aoqi@0	50	this.t = t;
aoqi@0	51	System.out.println("Fee<T> instantiated: " + t);
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	public void make() {
aoqi@0	55	System.out.println(this + ": make()");
aoqi@0	56	}
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	private static void assertTrue(boolean cond) {
aoqi@0	60	if (!cond)
aoqi@0	61	throw new AssertionError();
aoqi@0	62	}
aoqi@0	63
aoqi@0	64	public static void main(String[] args) {
aoqi@0	65
aoqi@0	66	A a = Fee<String>::new; //constructor reference to Fee<T>()
aoqi@0	67	a.m().make();
aoqi@0	68
aoqi@0	69	B b = Fee<String>::new; //constructor reference to Fee<T>(String)
aoqi@0	70	b.m("hi").make();
aoqi@0	71
aoqi@0	72	C c = MethodRef4::new; //constructor reference to MethodRef4()
aoqi@0	73	assertTrue( c.m() instanceof MethodRef4 );
aoqi@0	74	c = MethodRef4::new; //constructor reference to MethodRef4()
aoqi@0	75	assertTrue( c.m() instanceof MethodRef4 );
aoqi@0	76	c = Fee<String>::new; //constructor reference to Fee<T>()
aoqi@0	77	assertTrue( c.m() instanceof Fee );
aoqi@0	78	}
aoqi@0	79	}