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

test/tools/javac/lambda/LambdaInnerTypeVarReflect.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) 2013, 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 8005653
aoqi@0	27	* @summary A lambda containing an inner class referencing an external type var
aoqi@0	28	* @author Robert Field
aoqi@0	29	* @run main LambdaInnerTypeVarReflect
aoqi@0	30	*/
aoqi@0	31
aoqi@0	32	import java.io.StringWriter;
aoqi@0	33	import java.io.PrintWriter;
aoqi@0	34	import java.io.IOException;
aoqi@0	35
aoqi@0	36	public class LambdaInnerTypeVarReflect {
aoqi@0	37
aoqi@0	38	static int assertionCount = 0;
aoqi@0	39
aoqi@0	40	static void assertTrue(boolean cond) {
aoqi@0	41	assertionCount++;
aoqi@0	42	if (!cond)
aoqi@0	43	throw new AssertionError();
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	interface I {
aoqi@0	47	C doit();
aoqi@0	48	}
aoqi@0	49
aoqi@0	50	abstract class C {
aoqi@0	51	abstract Object it();
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	class TV {
aoqi@0	55	C go() {
aoqi@0	56	return foo("Frump").doit();
aoqi@0	57	}
aoqi@0	58
aoqi@0	59	<RRRRR> I foo(RRRRR r) {
aoqi@0	60	return () -> new C() {
aoqi@0	61	public RRRRR xxxxx = r;
aoqi@0	62	@Override
aoqi@0	63	Object it() { return xxxxx; };
aoqi@0	64	};
aoqi@0	65	}
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	void test1() throws IOException {
aoqi@0	69	char[] buffer = new char[1024];
aoqi@0	70	String innerName = new TV().go().getClass().getName();
aoqi@0	71	StringWriter sw = new StringWriter();
aoqi@0	72	PrintWriter pw = new PrintWriter(sw);
aoqi@0	73	int exitCode = com.sun.tools.javap.Main.run(new String[] {innerName}, pw);
aoqi@0	74	assertTrue(exitCode == 0);
aoqi@0	75
aoqi@0	76	String javapOut = sw.toString();
aoqi@0	77	assertTrue(javapOut.contains(innerName));
aoqi@0	78	assertTrue(!javapOut.contains("RRRRR"));
aoqi@0	79	}
aoqi@0	80
aoqi@0	81	public static void main(String[] args) throws IOException {
aoqi@0	82	LambdaInnerTypeVarReflect t = new LambdaInnerTypeVarReflect();
aoqi@0	83	t.test1();
aoqi@0	84	assertTrue(assertionCount == 3);
aoqi@0	85	}
aoqi@0	86	}