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test/tools/javac/lambda/lambdaExpression/LambdaTest2.java@5ddecb91d843 (annotated)

test/tools/javac/lambda/lambdaExpression/LambdaTest2.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 lambda expressions for different method signatures (parameter and return type)
aoqi@0	29	* @compile LambdaTest2.java
aoqi@0	30	* @run main LambdaTest2
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	public class LambdaTest2 {
aoqi@0	34
aoqi@0	35	private static int count = 0;
aoqi@0	36
aoqi@0	37	private static void assertTrue(boolean b) {
aoqi@0	38	if(!b)
aoqi@0	39	throw new AssertionError();
aoqi@0	40	}
aoqi@0	41
aoqi@0	42	public static void main(String[] args) {
aoqi@0	43	LambdaTest2 test = new LambdaTest2();
aoqi@0	44
aoqi@0	45	test.method2((int n) -> { ; });
aoqi@0	46	test.method2(n -> { }); // "int" is optional here
aoqi@0	47	test.method2((int n) -> { }); // ";" is optional here
aoqi@0	48	test.method2((int n) -> { return; }); // ";" is mandatory here
aoqi@0	49	test.method2((int n) -> { count += n; });
aoqi@0	50	assertTrue(count == 10);
aoqi@0	51
aoqi@0	52	VoidInt vi = (int i) -> {
aoqi@0	53	switch (i) {
aoqi@0	54	case 0:
aoqi@0	55	System.out.println("normal");
aoqi@0	56	break;
aoqi@0	57	default:
aoqi@0	58	System.out.println("invalid");
aoqi@0	59	}
aoqi@0	60	};
aoqi@0	61
aoqi@0	62	test.method3(()-> { count++; });
aoqi@0	63	test.method3(() -> {});
aoqi@0	64	assertTrue(count == 11);
aoqi@0	65
aoqi@0	66	VoidVoid vv = ()-> { while(true)
aoqi@0	67	if(false)
aoqi@0	68	break;
aoqi@0	69	else
aoqi@0	70	continue;
aoqi@0	71	};
aoqi@0	72
aoqi@0	73	IntVoid iv1 = () -> 42;
aoqi@0	74	IntVoid iv2 = () -> { return 43; };//";" is mandatory here
aoqi@0	75	assertTrue(iv1.ivMethod() == 42);
aoqi@0	76	assertTrue(iv2.ivMethod() == 43);
aoqi@0	77
aoqi@0	78	IntInt ii1 = (int n) -> n+1;
aoqi@0	79	IntInt ii2 = n -> 42;
aoqi@0	80	IntInt ii3 = n -> { return 43; };
aoqi@0	81	IntInt ii4 =
aoqi@0	82	(int n) -> {
aoqi@0	83	if(n > 0)
aoqi@0	84	return n+1;
aoqi@0	85	else
aoqi@0	86	return n-1;
aoqi@0	87	};
aoqi@0	88	assertTrue(ii1.iiMethod(1) == 2);
aoqi@0	89	assertTrue(ii2.iiMethod(1) == 42);
aoqi@0	90	assertTrue(ii3.iiMethod(1) == 43);
aoqi@0	91	assertTrue(ii4.iiMethod(-1) == -2);
aoqi@0	92	}
aoqi@0	93
aoqi@0	94	void method2(VoidInt a) {
aoqi@0	95	a.viMethod(10);
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	void method3(VoidVoid a) {
aoqi@0	99	a.vvMethod();
aoqi@0	100	}
aoqi@0	101
aoqi@0	102	//SAM type interfaces
aoqi@0	103	interface VoidInt {
aoqi@0	104	void viMethod(int n);
aoqi@0	105	}
aoqi@0	106
aoqi@0	107	interface VoidVoid {
aoqi@0	108	void vvMethod();
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	interface IntVoid {
aoqi@0	112	int ivMethod();
aoqi@0	113	}
aoqi@0	114
aoqi@0	115	interface IntInt {
aoqi@0	116	int iiMethod(int n);
aoqi@0	117	}
aoqi@0	118	}