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test/tools/javac/6979683/TestCast6979683_GOOD.java@7909abb85562 (annotated)

test/tools/javac/6979683/TestCast6979683_GOOD.java

Wed, 14 Nov 2018 10:18:25 -0800

author

diazhou

date

Wed, 14 Nov 2018 10:18:25 -0800

changeset 3762

7909abb85562

parent 0

959103a6100f

permissions

-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2010, 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 6979683
aoqi@0	27	* @summary Verify that casts can narrow and unbox at the same time
aoqi@0	28	* @author jrose
aoqi@0	29	*
aoqi@0	30	* @compile TestCast6979683_GOOD.java
aoqi@0	31	* @run main TestCast6979683_GOOD
aoqi@0	32	*/
aoqi@0	33
aoqi@0	34	public class TestCast6979683_GOOD {
aoqi@0	35	public static void main(String... av) {
aoqi@0	36	bugReportExample();
aoqi@0	37	for (int x = -1; x <= 2; x++) {
aoqi@0	38	zconvTests(x != 0);
aoqi@0	39	iconvTests(x);
aoqi@0	40	bconvTests((byte)x);
aoqi@0	41	cconvTests((char)x);
aoqi@0	42	}
aoqi@0	43	System.out.println("Successfully ran "+tests+" tests.");
aoqi@0	44	}
aoqi@0	45
aoqi@0	46	static int tests;
aoqi@0	47	static void assertEquals(Object x, Object y) {
aoqi@0	48	if (!x.equals(y)) {
aoqi@0	49	throw new RuntimeException("assertEquals: "+x+" != "+y);
aoqi@0	50	}
aoqi@0	51	++tests;
aoqi@0	52	}
aoqi@0	53
aoqi@0	54	static void bugReportExample() {
aoqi@0	55	{} // example in bug report:
aoqi@0	56	Object x = (Object)1;
aoqi@0	57	int y = (int)x;
aoqi@0	58	{} // end example
aoqi@0	59	}
aoqi@0	60
aoqi@0	61	static boolean zconv1(Boolean o) { return o; }
aoqi@0	62	static boolean zconv2(Object o) { return (boolean)o; }
aoqi@0	63	static boolean zconv3(Comparable<Boolean> o) { return (boolean)o; }
aoqi@0	64
aoqi@0	65	static void zconvTests(boolean x) {
aoqi@0	66	assertEquals(x, zconv1(x));
aoqi@0	67	assertEquals(x, zconv2(x));
aoqi@0	68	assertEquals(x, zconv3(x));
aoqi@0	69	}
aoqi@0	70
aoqi@0	71	static int iconv1(Integer o) { return o; }
aoqi@0	72	static int iconv2(Object o) { return (int)o; }
aoqi@0	73	static int iconv3(java.io.Serializable o) { return (int)o; }
aoqi@0	74	static int iconv4(Number o) { return (int)o; }
aoqi@0	75	static int iconv5(Comparable<Integer> o) { return (int)o; }
aoqi@0	76
aoqi@0	77	static void iconvTests(int x) {
aoqi@0	78	assertEquals(x, iconv1(x));
aoqi@0	79	assertEquals(x, iconv2(x));
aoqi@0	80	assertEquals(x, iconv3(x));
aoqi@0	81	assertEquals(x, iconv4(x));
aoqi@0	82	assertEquals(x, iconv5(x));
aoqi@0	83	}
aoqi@0	84
aoqi@0	85	static float bconv1(Byte o) { return o; } // note type "float"
aoqi@0	86	static float bconv2(Object o) { return (byte)o; }
aoqi@0	87	static float bconv3(java.io.Serializable o) { return (byte)o; }
aoqi@0	88	static float bconv4(Number o) { return (byte)o; }
aoqi@0	89
aoqi@0	90	static void bconvTests(byte x) {
aoqi@0	91	float xf = x;
aoqi@0	92	assertEquals(xf, bconv1(x));
aoqi@0	93	assertEquals(xf, bconv2(x));
aoqi@0	94	assertEquals(xf, bconv3(x));
aoqi@0	95	assertEquals(xf, bconv4(x));
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	static float cconv1(Character o) { return o; } // note type "float"
aoqi@0	99	static float cconv2(Object o) { return (char)o; }
aoqi@0	100	static float cconv3(java.io.Serializable o) { return (char)o; }
aoqi@0	101	static float cconv4(Comparable<Character> o) { return (char)o; }
aoqi@0	102
aoqi@0	103	static void cconvTests(char x) {
aoqi@0	104	float xf = x;
aoqi@0	105	assertEquals(xf, cconv1(x));
aoqi@0	106	assertEquals(xf, cconv2(x));
aoqi@0	107	assertEquals(xf, cconv3(x));
aoqi@0	108	assertEquals(xf, cconv4(x));
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	}