3789983e89
Reviewed-by: darcy, ihse
112 lines
3.6 KiB
Java
112 lines
3.6 KiB
Java
/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6979683
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* @summary Verify that casts can narrow and unbox at the same time
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* @author jrose
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*
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* @compile TestCast6979683_GOOD.java
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* @run main TestCast6979683_GOOD
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*/
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public class TestCast6979683_GOOD {
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public static void main(String... av) {
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bugReportExample();
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for (int x = -1; x <= 2; x++) {
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zconvTests(x != 0);
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iconvTests(x);
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bconvTests((byte)x);
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cconvTests((char)x);
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}
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System.out.println("Successfully ran "+tests+" tests.");
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}
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static int tests;
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static void assertEquals(Object x, Object y) {
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if (!x.equals(y)) {
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throw new RuntimeException("assertEquals: "+x+" != "+y);
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}
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++tests;
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}
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static void bugReportExample() {
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{} // example in bug report:
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Object x = (Object)1;
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int y = (int)x;
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{} // end example
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}
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static boolean zconv1(Boolean o) { return o; }
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static boolean zconv2(Object o) { return (boolean)o; }
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static boolean zconv3(Comparable<Boolean> o) { return (boolean)o; }
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static void zconvTests(boolean x) {
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assertEquals(x, zconv1(x));
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assertEquals(x, zconv2(x));
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assertEquals(x, zconv3(x));
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}
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static int iconv1(Integer o) { return o; }
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static int iconv2(Object o) { return (int)o; }
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static int iconv3(java.io.Serializable o) { return (int)o; }
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static int iconv4(Number o) { return (int)o; }
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static int iconv5(Comparable<Integer> o) { return (int)o; }
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static void iconvTests(int x) {
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assertEquals(x, iconv1(x));
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assertEquals(x, iconv2(x));
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assertEquals(x, iconv3(x));
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assertEquals(x, iconv4(x));
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assertEquals(x, iconv5(x));
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}
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static float bconv1(Byte o) { return o; } // note type "float"
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static float bconv2(Object o) { return (byte)o; }
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static float bconv3(java.io.Serializable o) { return (byte)o; }
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static float bconv4(Number o) { return (byte)o; }
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static void bconvTests(byte x) {
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float xf = x;
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assertEquals(xf, bconv1(x));
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assertEquals(xf, bconv2(x));
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assertEquals(xf, bconv3(x));
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assertEquals(xf, bconv4(x));
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}
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static float cconv1(Character o) { return o; } // note type "float"
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static float cconv2(Object o) { return (char)o; }
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static float cconv3(java.io.Serializable o) { return (char)o; }
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static float cconv4(Comparable<Character> o) { return (char)o; }
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static void cconvTests(char x) {
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float xf = x;
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assertEquals(xf, cconv1(x));
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assertEquals(xf, cconv2(x));
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assertEquals(xf, cconv3(x));
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assertEquals(xf, cconv4(x));
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}
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}
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