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test/tools/javac/lambda/typeInference/InferenceTest4.java@e64bb2f5f0cf (annotated)

test/tools/javac/lambda/typeInference/InferenceTest4.java

Fri, 30 May 2014 12:54:16 +0200

author

jlahoda

date

Fri, 30 May 2014 12:54:16 +0200

changeset 2410

e64bb2f5f0cf

parent 0

959103a6100f

permissions

-rw-r--r--

8031967: For some sources compiler compiles for ever
Summary: Avoid creating DeferredTypes for method calls with method calls as receivers if the site can be determined reliably
Reviewed-by: mcimadamore, vromero
Contributed-by: maurizio.cimadamore@oracle.com, jan.lahoda@oracle.com

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	* This test is for generic methods whose type is the same as the type
aoqi@0	29	of the generic SAM interface that is taken as the parameter of the
aoqi@0	30	generic method; the type can be inferred from the value of the other
aoqi@0	31	type arguments
aoqi@0	32	* @compile InferenceTest4.java
aoqi@0	33	* @run main InferenceTest4
aoqi@0	34	*/
aoqi@0	35
aoqi@0	36	import java.util.List;
aoqi@0	37	import java.util.ArrayList;
aoqi@0	38
aoqi@0	39	public class InferenceTest4 {
aoqi@0	40
aoqi@0	41	private static void assertTrue(boolean b) {
aoqi@0	42	if(!b)
aoqi@0	43	throw new AssertionError();
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	public static void main(String[] args) {
aoqi@0	47	InferenceTest4 test = new InferenceTest4();
aoqi@0	48	test.method1(n -> n.size(), "abc", "java.lang.String");
aoqi@0	49	test.method1(n -> n.size(), 'c', "java.lang.Character");
aoqi@0	50	test.method1(n -> n.size(), 0, "java.lang.Integer");
aoqi@0	51	test.method1(n -> n.size(), 0.1, "java.lang.Double");
aoqi@0	52	test.method1(n -> n.size(), 0.1f, "java.lang.Float");
aoqi@0	53	test.method1(n -> n.size(), 0L, "java.lang.Long");
aoqi@0	54	test.method1(n -> n.size(), (short)0, "java.lang.Short");
aoqi@0	55	test.method1(n -> n.size(), (byte)0, "java.lang.Byte");
aoqi@0	56	test.method1(n -> n.size(), true, "java.lang.Boolean");
aoqi@0	57	test.method1(n -> n.size(), new int[]{1, 2, 3}, "[I");
aoqi@0	58	test.method1(n -> n.size(), new double[]{1.0}, "[D");
aoqi@0	59	test.method1(n -> n.size(), new String[]{}, "[Ljava.lang.String;");
aoqi@0	60	}
aoqi@0	61
aoqi@0	62	<T> void method1(SAM1<T> s, T t, String className) {
aoqi@0	63	List<T> list = new ArrayList<T>();
aoqi@0	64	System.out.println(className + "-" + t.getClass().getName());
aoqi@0	65	assertTrue(t.getClass().getName().equals(className));
aoqi@0	66	list.add(t);
aoqi@0	67	assertTrue(s.m1(list) == 1);
aoqi@0	68	}
aoqi@0	69
aoqi@0	70	interface SAM1<T> {
aoqi@0	71	int m1(List<T> x);
aoqi@0	72	}
aoqi@0	73	}