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