1/*
2 * Copyright (c) 2009, 2015, 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
24import java.io.*;
25import com.sun.tools.classfile.*;
26
27/*
28 * @test PresenceInner
29 * @bug 6843077
30 * @summary test that annotations in inner types count only once
31 * @modules jdk.jdeps/com.sun.tools.classfile
32 */
33
34public class PresenceInner {
35    public static void main(String[] args) throws Exception {
36        new PresenceInner().run();
37    }
38
39    public void run() throws Exception {
40        File javaFile = writeTestFile();
41        File classFile = compileTestFile(javaFile);
42
43        ClassFile cf = ClassFile.read(classFile);
44        test(cf);
45        for (Field f : cf.fields) {
46            test(cf, f);
47        }
48        for (Method m: cf.methods) {
49            test(cf, m);
50        }
51
52        // counts are zero when vising outer class
53        countAnnotations(0);
54
55        // visit inner class
56        File innerFile = new File("Test$1Inner.class");
57        ClassFile icf = ClassFile.read(innerFile);
58        test(icf);
59        for (Field f : icf.fields) {
60            test(cf, f);
61        }
62        for (Method m: icf.methods) {
63            test(cf, m);
64        }
65
66        countAnnotations(1);
67        if (errors > 0)
68            throw new Exception(errors + " errors found");
69        System.out.println("PASSED");
70    }
71
72    void test(ClassFile cf) {
73        test(cf, Attribute.RuntimeVisibleTypeAnnotations, true);
74        test(cf, Attribute.RuntimeInvisibleTypeAnnotations, false);
75    }
76
77    void test(ClassFile cf, Method m) {
78        test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
79        test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
80    }
81
82    void test(ClassFile cf, Field m) {
83        test(cf, m, Attribute.RuntimeVisibleTypeAnnotations, true);
84        test(cf, m, Attribute.RuntimeInvisibleTypeAnnotations, false);
85    }
86
87    // test the result of Attributes.getIndex according to expectations
88    // encoded in the method's name
89    void test(ClassFile cf, String name, boolean visible) {
90        int index = cf.attributes.getIndex(cf.constant_pool, name);
91        if (index != -1) {
92            Attribute attr = cf.attributes.get(index);
93            assert attr instanceof RuntimeTypeAnnotations_attribute;
94            RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
95            all += tAttr.annotations.length;
96            if (visible)
97                visibles += tAttr.annotations.length;
98            else
99                invisibles += tAttr.annotations.length;
100        }
101    }
102
103    // test the result of Attributes.getIndex according to expectations
104    // encoded in the method's name
105    void test(ClassFile cf, Method m, String name, boolean visible) {
106        int index = m.attributes.getIndex(cf.constant_pool, name);
107        if (index != -1) {
108            Attribute attr = m.attributes.get(index);
109            assert attr instanceof RuntimeTypeAnnotations_attribute;
110            RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
111            all += tAttr.annotations.length;
112            if (visible)
113                visibles += tAttr.annotations.length;
114            else
115                invisibles += tAttr.annotations.length;
116        }
117    }
118
119    // test the result of Attributes.getIndex according to expectations
120    // encoded in the method's name
121    void test(ClassFile cf, Field m, String name, boolean visible) {
122        int index = m.attributes.getIndex(cf.constant_pool, name);
123        if (index != -1) {
124            Attribute attr = m.attributes.get(index);
125            assert attr instanceof RuntimeTypeAnnotations_attribute;
126            RuntimeTypeAnnotations_attribute tAttr = (RuntimeTypeAnnotations_attribute)attr;
127            all += tAttr.annotations.length;
128            if (visible)
129                visibles += tAttr.annotations.length;
130            else
131                invisibles += tAttr.annotations.length;
132        }
133    }
134
135    File writeTestFile() throws IOException {
136        File f = new File("Test.java");
137        PrintWriter out = new PrintWriter(new BufferedWriter(new FileWriter(f)));
138
139        out.println("import java.lang.annotation.*;");
140        out.println("class Test {");
141        out.println("  void method() {");
142        out.println("    class Inner<T extends @A Object> { }");
143        out.println("  }");
144        out.println("}");
145        out.println("@Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER})");
146        out.println("@interface A { }");
147        out.close();
148        System.out.println(f.getAbsolutePath());
149        return f;
150    }
151
152    File compileTestFile(File f) {
153        int rc = com.sun.tools.javac.Main.compile(new String[] {"-g", f.getPath() });
154        if (rc != 0)
155            throw new Error("compilation failed. rc=" + rc);
156        String path = f.getPath();
157        return new File(path.substring(0, path.length() - 5) + ".class");
158    }
159
160    void countAnnotations(int expected_invisibles) {
161        int expected_visibles = 0;
162        int expected_all = expected_visibles + expected_invisibles;
163
164        if (expected_all != all) {
165            errors++;
166            System.err.println("expected " + expected_all
167                    + " annotations but found " + all);
168        }
169
170        if (expected_visibles != visibles) {
171            errors++;
172            System.err.println("expected " + expected_visibles
173                    + " visibles annotations but found " + visibles);
174        }
175
176        if (expected_invisibles != invisibles) {
177            errors++;
178            System.err.println("expected " + expected_invisibles
179                    + " invisibles annotations but found " + invisibles);
180        }
181
182    }
183
184    int errors;
185    int all;
186    int visibles;
187    int invisibles;
188}
189