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test/tools/javac/lambda/typeInference/InferenceTest5.java@01c9d4161882 (annotated)

test/tools/javac/lambda/typeInference/InferenceTest5.java

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

author

mcimadamore

date

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

changeset 1415

01c9d4161882

permissions

-rw-r--r--

8003280: Add lambda tests
Summary: Turn on lambda expression, method reference and default method support
Reviewed-by: jjg

mcimadamore@1415	1	/*
mcimadamore@1415	2	* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
mcimadamore@1415	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
mcimadamore@1415	4	*
mcimadamore@1415	5	* This code is free software; you can redistribute it and/or modify it
mcimadamore@1415	6	* under the terms of the GNU General Public License version 2 only, as
mcimadamore@1415	7	* published by the Free Software Foundation.
mcimadamore@1415	8	*
mcimadamore@1415	9	* This code is distributed in the hope that it will be useful, but WITHOUT
mcimadamore@1415	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
mcimadamore@1415	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
mcimadamore@1415	12	* version 2 for more details (a copy is included in the LICENSE file that
mcimadamore@1415	13	* accompanied this code).
mcimadamore@1415	14	*
mcimadamore@1415	15	* You should have received a copy of the GNU General Public License version
mcimadamore@1415	16	* 2 along with this work; if not, write to the Free Software Foundation,
mcimadamore@1415	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
mcimadamore@1415	18	*
mcimadamore@1415	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
mcimadamore@1415	20	* or visit www.oracle.com if you need additional information or have any
mcimadamore@1415	21	* questions.
mcimadamore@1415	22	*/
mcimadamore@1415	23
mcimadamore@1415	24	/**
mcimadamore@1415	25	* @test
mcimadamore@1415	26	* @bug 8003280
mcimadamore@1415	27	* @summary Add lambda tests
mcimadamore@1415	28	* This test is for overloaded methods, verify that the specific method is
mcimadamore@1415	29	selected when type inference occurs
mcimadamore@1415	30	* @compile InferenceTest5.java
mcimadamore@1415	31	* @run main InferenceTest5
mcimadamore@1415	32	*/
mcimadamore@1415	33
mcimadamore@1415	34	import java.util.List;
mcimadamore@1415	35	import java.io.File;
mcimadamore@1415	36
mcimadamore@1415	37	public class InferenceTest5 {
mcimadamore@1415	38
mcimadamore@1415	39	private static void assertTrue(boolean b) {
mcimadamore@1415	40	if(!b)
mcimadamore@1415	41	throw new AssertionError();
mcimadamore@1415	42	}
mcimadamore@1415	43
mcimadamore@1415	44	public static void main(String[] args) {
mcimadamore@1415	45	InferenceTest5 test = new InferenceTest5();
mcimadamore@1415	46	int n = test.method1((a, b) -> {} );
mcimadamore@1415	47	assertTrue(n == 1);
mcimadamore@1415	48
mcimadamore@1415	49	n = test.method1(() -> null);
mcimadamore@1415	50	assertTrue(n == 2);
mcimadamore@1415	51
mcimadamore@1415	52	n = test.method1(a -> null);
mcimadamore@1415	53	assertTrue(n == 3);
mcimadamore@1415	54
mcimadamore@1415	55	n = test.method1(a -> {});
mcimadamore@1415	56	assertTrue(n == 4);
mcimadamore@1415	57
mcimadamore@1415	58	n = test.method1(() -> {});
mcimadamore@1415	59	assertTrue(n == 5);
mcimadamore@1415	60
mcimadamore@1415	61	n = test.method1((a, b) -> 0);
mcimadamore@1415	62	assertTrue(n == 6);
mcimadamore@1415	63
mcimadamore@1415	64	n = test.method1((a, b) -> null);
mcimadamore@1415	65	assertTrue(n == 6);
mcimadamore@1415	66
mcimadamore@1415	67	n = test.method1((a, b) -> null, (a, b) -> null);
mcimadamore@1415	68	assertTrue(n == 7);
mcimadamore@1415	69	}
mcimadamore@1415	70
mcimadamore@1415	71	int method1(SAM1<String> s) {
mcimadamore@1415	72	return 1;
mcimadamore@1415	73	}
mcimadamore@1415	74
mcimadamore@1415	75	int method1(SAM2 s) {
mcimadamore@1415	76	return 2;
mcimadamore@1415	77	}
mcimadamore@1415	78
mcimadamore@1415	79	int method1(SAM3 s) {
mcimadamore@1415	80	return 3;
mcimadamore@1415	81	}
mcimadamore@1415	82
mcimadamore@1415	83	int method1(SAM4 s) {
mcimadamore@1415	84	return 4;
mcimadamore@1415	85	}
mcimadamore@1415	86
mcimadamore@1415	87	int method1(SAM5 s) {
mcimadamore@1415	88	return 5;
mcimadamore@1415	89	}
mcimadamore@1415	90
mcimadamore@1415	91	int method1(SAM6<?, ? super Integer> s) {
mcimadamore@1415	92	return 6;
mcimadamore@1415	93	}
mcimadamore@1415	94
mcimadamore@1415	95	int method1(SAM6<?, ?>... s) {
mcimadamore@1415	96	return 7;
mcimadamore@1415	97	}
mcimadamore@1415	98
mcimadamore@1415	99	static interface SAM1<T> {
mcimadamore@1415	100	void foo(List<T> a, List<T> b);
mcimadamore@1415	101	}
mcimadamore@1415	102
mcimadamore@1415	103	static interface SAM2 {
mcimadamore@1415	104	List<String> foo();
mcimadamore@1415	105	}
mcimadamore@1415	106
mcimadamore@1415	107	static interface SAM3 {
mcimadamore@1415	108	String foo(int a);
mcimadamore@1415	109	}
mcimadamore@1415	110
mcimadamore@1415	111	static interface SAM4 {
mcimadamore@1415	112	void foo(List<File> a);
mcimadamore@1415	113	}
mcimadamore@1415	114
mcimadamore@1415	115	static interface SAM5 {
mcimadamore@1415	116	void foo();
mcimadamore@1415	117	}
mcimadamore@1415	118
mcimadamore@1415	119	static interface SAM6<T, V> {
mcimadamore@1415	120	V get(T t, T t2);
mcimadamore@1415	121	}
mcimadamore@1415	122	}