1 /*
2 * Copyright (c) 2008, 2014, 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.io.*;
25 import com.sun.tools.classfile.*;
26
27 /*
28 * @test Visibility
29 * @bug 6843077
30 * @summary test that type annotations are recorded in the classfile
31 */
32
33 public class Visibility {
34 public static void main(String[] args) throws Exception {
35 new Visibility().run();
36 }
37
38 public void run() throws Exception {
39 File javaFile = writeTestFile();
40 File classFile = compileTestFile(javaFile);
41
42 ClassFile cf = ClassFile.read(classFile);
43 for (Method m: cf.methods) {
44 test(cf, m);
45 }
46
47 countAnnotations();
48
49 if (errors > 0)
50 throw new Exception(errors + " errors found");
51 System.out.println("PASSED");
52 }
53
54 void test(ClassFile cf, Method m) {
55 test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
56 test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
57 }
58
59 // test the result of Attributes.getIndex according to expectations
60 // encoded in the method's name
61 void test(ClassFile cf, Method m, String name, boolean visible) {
62 int index = m.attributes.getIndex(cf.constant_pool, name);
63 if (index != -1) {
64 Attribute attr = m.attributes.get(index);
65 assert attr instanceof RuntimeTypeAnnotations_attribute;
66 RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
67 all += tAttr.annotations.length;
68 if (visible)
69 visibles += tAttr.annotations.length;
70 else
71 invisibles += tAttr.annotations.length;
72 }
73 }
74
75 File writeTestFile() throws IOException {
76 File f = new File("Test.java");
77 PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
78 out.println("import java.lang.annotation.ElementType;");
79 out.println("import java.lang.annotation.Retention;");
80 out.println("import java.lang.annotation.RetentionPolicy;");
81 out.println("import java.lang.annotation.Target;");
82 out.println("abstract class Test { ");
83 // visible annotations: RUNTIME
84 out.println(" @Retention(RetentionPolicy.RUNTIME)");
85 out.println(" @Target(ElementType.TYPE_USE)");
86 out.println(" @interface A { }");
87 out.println(" void visible(@A Test this) { }");
88
89 // invisible annotations: CLASS
90 out.println(" @Retention(RetentionPolicy.CLASS)");
91 out.println(" @Target(ElementType.TYPE_USE)");
92 out.println(" @interface B { }");
93 out.println(" void invisible(@B Test this) { }");
94
95 // source annotations
96 out.println(" @Retention(RetentionPolicy.SOURCE)");
97 out.println(" @Target(ElementType.TYPE_USE)");
98 out.println(" @interface C { }");
99 out.println(" void source(@C Test this) { }");
100
101 // default visibility: CLASS
102 out.println(" @Target(ElementType.TYPE_USE)");
103 out.println(" @interface D { }");
104 out.println(" void def(@D Test this) { }");
105 out.println("}");
106 out.close();
107 return f;
108 }
109
110 File compileTestFile(File f) {
111 int rc = com.sun.tools.javac.Main.compile(new String[] {"-g", f.getPath() });
112 if (rc != 0)
113 throw new Error("compilation failed. rc=" + rc);
114 String path = f.getPath();
115 return new File(path.substring(0, path.length() - 5) + ".class");
116 }
117
118 void countAnnotations() {
119 int expected_all = 3, expected_visibles = 1, expected_invisibles = 2;
120
121 if (expected_all != all) {
122 errors++;
123 System.err.println("expected " + expected_all
124 + " annotations but found " + all);
125 }
126
127 if (expected_visibles != visibles) {
128 errors++;
129 System.err.println("expected " + expected_visibles
130 + " visibles annotations but found " + visibles);
131 }
132
133 if (expected_invisibles != invisibles) {
134 errors++;
135 System.err.println("expected " + expected_invisibles
136 + " invisibles annotations but found " + invisibles);
137 }
138
139 }
140
141 int errors;
142 int all;
143 int visibles;
144 int invisibles;
145 }