1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/test/tools/javac/6979683/TestCast6979683_GOOD.java Wed Apr 27 01:34:52 2016 +0800
1.3 @@ -0,0 +1,111 @@
1.4 +/*
1.5 + * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation.
1.11 + *
1.12 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.13 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.14 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.15 + * version 2 for more details (a copy is included in the LICENSE file that
1.16 + * accompanied this code).
1.17 + *
1.18 + * You should have received a copy of the GNU General Public License version
1.19 + * 2 along with this work; if not, write to the Free Software Foundation,
1.20 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.21 + *
1.22 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.23 + * or visit www.oracle.com if you need additional information or have any
1.24 + * questions.
1.25 + */
1.26 +
1.27 +/*
1.28 + * @test
1.29 + * @bug 6979683
1.30 + * @summary Verify that casts can narrow and unbox at the same time
1.31 + * @author jrose
1.32 + *
1.33 + * @compile TestCast6979683_GOOD.java
1.34 + * @run main TestCast6979683_GOOD
1.35 + */
1.36 +
1.37 +public class TestCast6979683_GOOD {
1.38 + public static void main(String... av) {
1.39 + bugReportExample();
1.40 + for (int x = -1; x <= 2; x++) {
1.41 + zconvTests(x != 0);
1.42 + iconvTests(x);
1.43 + bconvTests((byte)x);
1.44 + cconvTests((char)x);
1.45 + }
1.46 + System.out.println("Successfully ran "+tests+" tests.");
1.47 + }
1.48 +
1.49 + static int tests;
1.50 + static void assertEquals(Object x, Object y) {
1.51 + if (!x.equals(y)) {
1.52 + throw new RuntimeException("assertEquals: "+x+" != "+y);
1.53 + }
1.54 + ++tests;
1.55 + }
1.56 +
1.57 + static void bugReportExample() {
1.58 + {} // example in bug report:
1.59 + Object x = (Object)1;
1.60 + int y = (int)x;
1.61 + {} // end example
1.62 + }
1.63 +
1.64 + static boolean zconv1(Boolean o) { return o; }
1.65 + static boolean zconv2(Object o) { return (boolean)o; }
1.66 + static boolean zconv3(Comparable<Boolean> o) { return (boolean)o; }
1.67 +
1.68 + static void zconvTests(boolean x) {
1.69 + assertEquals(x, zconv1(x));
1.70 + assertEquals(x, zconv2(x));
1.71 + assertEquals(x, zconv3(x));
1.72 + }
1.73 +
1.74 + static int iconv1(Integer o) { return o; }
1.75 + static int iconv2(Object o) { return (int)o; }
1.76 + static int iconv3(java.io.Serializable o) { return (int)o; }
1.77 + static int iconv4(Number o) { return (int)o; }
1.78 + static int iconv5(Comparable<Integer> o) { return (int)o; }
1.79 +
1.80 + static void iconvTests(int x) {
1.81 + assertEquals(x, iconv1(x));
1.82 + assertEquals(x, iconv2(x));
1.83 + assertEquals(x, iconv3(x));
1.84 + assertEquals(x, iconv4(x));
1.85 + assertEquals(x, iconv5(x));
1.86 + }
1.87 +
1.88 + static float bconv1(Byte o) { return o; } // note type "float"
1.89 + static float bconv2(Object o) { return (byte)o; }
1.90 + static float bconv3(java.io.Serializable o) { return (byte)o; }
1.91 + static float bconv4(Number o) { return (byte)o; }
1.92 +
1.93 + static void bconvTests(byte x) {
1.94 + float xf = x;
1.95 + assertEquals(xf, bconv1(x));
1.96 + assertEquals(xf, bconv2(x));
1.97 + assertEquals(xf, bconv3(x));
1.98 + assertEquals(xf, bconv4(x));
1.99 + }
1.100 +
1.101 + static float cconv1(Character o) { return o; } // note type "float"
1.102 + static float cconv2(Object o) { return (char)o; }
1.103 + static float cconv3(java.io.Serializable o) { return (char)o; }
1.104 + static float cconv4(Comparable<Character> o) { return (char)o; }
1.105 +
1.106 + static void cconvTests(char x) {
1.107 + float xf = x;
1.108 + assertEquals(xf, cconv1(x));
1.109 + assertEquals(xf, cconv2(x));
1.110 + assertEquals(xf, cconv3(x));
1.111 + assertEquals(xf, cconv4(x));
1.112 + }
1.113 +
1.114 +}
