test/tools/javac/annotations/typeAnnotations/classfile/TypeCasts.java

changeset 1521
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child 1534
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1520:5c956be64b9e 1521:71f35e4b93a5
1 /*
2 * Copyright (c) 2009 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 import java.lang.annotation.*;
25 import java.io.*;
26 import java.net.URL;
27 import java.util.List;
28
29 import com.sun.tools.classfile.*;
30
31 /*
32 * @test
33 * @bug 6843077 8006775
34 * @summary test that typecasts annotation are emitted if only the cast
35 * expression is optimized away
36 */
37
38 public class TypeCasts extends ClassfileTestHelper{
39 public static void main(String[] args) throws Exception {
40 new TypeCasts().run();
41 }
42
43 public void run() throws Exception {
44 expected_tinvisibles = 4;
45 expected_tvisibles = 0;
46
47 ClassFile cf = getClassFile("TypeCasts$Test.class");
48 test(cf);
49 for (Field f : cf.fields) {
50 test(cf, f);
51 }
52 for (Method m: cf.methods) {
53 test(cf, m);
54 }
55
56 countAnnotations();
57
58 if (errors > 0)
59 throw new Exception(errors + " errors found");
60 System.out.println("PASSED");
61 }
62
63 /*********************** Test class *************************/
64 static class Test {
65 @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})
66 @interface A {}
67
68 void emit() {
69 Object o = null;
70 String s = null;
71
72 String a0 = (@A String)o;
73 Object a1 = (@A Object)o;
74
75 String b0 = (@A String)s;
76 Object b1 = (@A Object)s;
77 }
78
79 void alldeadcode() {
80 Object o = null;
81
82 if (false) {
83 String a0 = (@A String)o;
84 }
85 }
86 }
87 }

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