Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/6979683/TestCast6979683_GOOD.java
test/tools/javac/6979683/TestCast6979683_GOOD.java
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| 1 /* | |
| 2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 6979683 | |
| 27 * @summary Verify that casts can narrow and unbox at the same time | |
| 28 * @author jrose | |
| 29 * | |
| 30 * @compile TestCast6979683_GOOD.java | |
| 31 * @run main TestCast6979683_GOOD | |
| 32 */ | |
| 33 | |
| 34 public class TestCast6979683_GOOD { | |
| 35 public static void main(String... av) { | |
| 36 bugReportExample(); | |
| 37 for (int x = -1; x <= 2; x++) { | |
| 38 zconvTests(x != 0); | |
| 39 iconvTests(x); | |
| 40 bconvTests((byte)x); | |
| 41 cconvTests((char)x); | |
| 42 } | |
| 43 System.out.println("Successfully ran "+tests+" tests."); | |
| 44 } | |
| 45 | |
| 46 static int tests; | |
| 47 static void assertEquals(Object x, Object y) { | |
| 48 if (!x.equals(y)) { | |
| 49 throw new RuntimeException("assertEquals: "+x+" != "+y); | |
| 50 } | |
| 51 ++tests; | |
| 52 } | |
| 53 | |
| 54 static void bugReportExample() { | |
| 55 {} // example in bug report: | |
| 56 Object x = (Object)1; | |
| 57 int y = (int)x; | |
| 58 {} // end example | |
| 59 } | |
| 60 | |
| 61 static boolean zconv1(Boolean o) { return o; } | |
| 62 static boolean zconv2(Object o) { return (boolean)o; } | |
| 63 static boolean zconv3(Comparable<Boolean> o) { return (boolean)o; } | |
| 64 | |
| 65 static void zconvTests(boolean x) { | |
| 66 assertEquals(x, zconv1(x)); | |
| 67 assertEquals(x, zconv2(x)); | |
| 68 assertEquals(x, zconv3(x)); | |
| 69 } | |
| 70 | |
| 71 static int iconv1(Integer o) { return o; } | |
| 72 static int iconv2(Object o) { return (int)o; } | |
| 73 static int iconv3(java.io.Serializable o) { return (int)o; } | |
| 74 static int iconv4(Number o) { return (int)o; } | |
| 75 static int iconv5(Comparable<Integer> o) { return (int)o; } | |
| 76 | |
| 77 static void iconvTests(int x) { | |
| 78 assertEquals(x, iconv1(x)); | |
| 79 assertEquals(x, iconv2(x)); | |
| 80 assertEquals(x, iconv3(x)); | |
| 81 assertEquals(x, iconv4(x)); | |
| 82 assertEquals(x, iconv5(x)); | |
| 83 } | |
| 84 | |
| 85 static float bconv1(Byte o) { return o; } // note type "float" | |
| 86 static float bconv2(Object o) { return (byte)o; } | |
| 87 static float bconv3(java.io.Serializable o) { return (byte)o; } | |
| 88 static float bconv4(Number o) { return (byte)o; } | |
| 89 | |
| 90 static void bconvTests(byte x) { | |
| 91 float xf = x; | |
| 92 assertEquals(xf, bconv1(x)); | |
| 93 assertEquals(xf, bconv2(x)); | |
| 94 assertEquals(xf, bconv3(x)); | |
| 95 assertEquals(xf, bconv4(x)); | |
| 96 } | |
| 97 | |
| 98 static float cconv1(Character o) { return o; } // note type "float" | |
| 99 static float cconv2(Object o) { return (char)o; } | |
| 100 static float cconv3(java.io.Serializable o) { return (char)o; } | |
| 101 static float cconv4(Comparable<Character> o) { return (char)o; } | |
| 102 | |
| 103 static void cconvTests(char x) { | |
| 104 float xf = x; | |
| 105 assertEquals(xf, cconv1(x)); | |
| 106 assertEquals(xf, cconv2(x)); | |
| 107 assertEquals(xf, cconv3(x)); | |
| 108 assertEquals(xf, cconv4(x)); | |
| 109 } | |
| 110 | |
| 111 } |
