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