1 /*
2 * Copyright (c) 2014, 2024, 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 8042251
27 * @summary Testing InnerClasses_attribute of inner classes in local class.
28 * @library /tools/lib /tools/javac/lib ../lib
29 * @enablePreview
30 * @modules java.base/jdk.internal.classfile.impl
31 * jdk.compiler/com.sun.tools.javac.api
32 * jdk.compiler/com.sun.tools.javac.main
33 * @enablePreview
34 * @build toolbox.ToolBox InMemoryFileManager TestResult TestBase
35 * @build InnerClassesTestBase
36 * @run main InnerClassesInLocalClassTest
37 */
38
39 import java.util.*;
40
41 public class InnerClassesInLocalClassTest extends InnerClassesTestBase {
42
43 private final static Modifier[] LOCAL_CLASS_MODIFIERS =
44 new Modifier[]{Modifier.EMPTY, Modifier.ABSTRACT, Modifier.FINAL};
45 private final static String CLASS_TEMPLATE =
46 "public %CLASS% OuterClass {\n" +
47 "%SOURCE%\n" +
48 "}";
49
50 private final List<Data> innerClassesData;
51
52 public InnerClassesInLocalClassTest() {
53 innerClassesData = new ArrayList<>();
54 for (Modifier outerModifier : LOCAL_CLASS_MODIFIERS) {
55 StringBuilder sb = new StringBuilder();
56 sb.append(outerModifier.getString()).append(' ');
57 sb.append("class Local { int f; "); // impose identity to make testing predictable.
58 Map<String, Set<String>> class2Flags = new HashMap<>();
59 for (int i = 0; i < LOCAL_CLASS_MODIFIERS.length; ++i) {
60 Modifier innerModifier = LOCAL_CLASS_MODIFIERS[i];
61 sb.append(innerModifier.getString()).append(' ')
62 .append("class").append(' ')
63 .append('A').append(i).append("{}\n");
64 class2Flags.put("A" + i, getFlags(innerModifier));
65 }
66 sb.append("};");
67 class2Flags.put("1Local", getFlags(outerModifier));
68 innerClassesData.add(new Data(sb.toString(), class2Flags));
69 }
70 }
71
72 public static void main(String[] args) throws TestFailedException {
73 InnerClassesTestBase test = new InnerClassesInLocalClassTest();
74 test.test("OuterClass$1Local", "1Local");
75 }
76
77 @Override
78 public void setProperties() {
79 }
80
81 @Override
82 public List<TestCase> generateTestCases() {
83 List<TestCase> testCases = new ArrayList<>();
84 testCases.addAll(localClassInClassMethod());
85 testCases.addAll(localClassInInterfaceMethod());
86 return testCases;
87 }
88
89 private List<TestCase> localClassInClassMethod() {
90 List<TestCase> list = new ArrayList<>();
91 String template = CLASS_TEMPLATE.replace("%CLASS%", "class");
92 list.addAll(lambda(template));
93 list.addAll(constructor(template));
94 list.addAll(method(template,
95 new Modifier[]{Modifier.EMPTY, Modifier.PRIVATE, Modifier.PROTECTED, Modifier.PUBLIC},
96 new Modifier[]{Modifier.EMPTY, Modifier.FINAL, Modifier.STATIC}));
97 list.addAll(staticAndInstanceInitializer(template));
98 return list;
99 }
100
101 private List<TestCase> localClassInInterfaceMethod() {
102 String template = CLASS_TEMPLATE.replace("%CLASS%", "interface");
103 return method(template,
104 new Modifier[]{Modifier.EMPTY, Modifier.PUBLIC},
105 new Modifier[]{Modifier.DEFAULT, Modifier.STATIC});
106 }
107
108 private List<TestCase> generate(String template, String prefix, String suffix) {
109 List<TestCase> list = new ArrayList<>();
110 for (Data data : innerClassesData) {
111 list.add(new TestCase(template.replace("%SOURCE%",
112 prefix + data.sources + suffix),
113 data.class2Flags));
114 }
115 return list;
116 }
117
118 private List<TestCase> lambda(String template) {
119 return generate(template, "Runnable run = () -> {", "};");
120 }
121
122 private List<TestCase> constructor(String template) {
123 List<TestCase> list = new ArrayList<>();
124 for (Modifier modifier :
125 new Modifier[]{Modifier.EMPTY, Modifier.PRIVATE, Modifier.PROTECTED, Modifier.PUBLIC}) {
126 list.addAll(generate(template, modifier.getString() + " OuterClass() {", "}"));
127 }
128 return list;
129 }
130
131 private List<TestCase> method(String template, Modifier[] mods, Modifier[] otherMods) {
132 List<TestCase> list = new ArrayList<>();
133 for (Modifier modifier : mods) {
134 for (Modifier otherMod : otherMods) {
135 list.addAll(generate(template,
136 String.format("%s %s void method() {",
137 modifier.getString(),
138 otherMod.getString()),
139 "}"));
140 }
141 }
142 return list;
143 }
144
145 private List<TestCase> staticAndInstanceInitializer(String template) {
146 List<TestCase> list = new ArrayList<>();
147 for (Modifier modifier : new Modifier[]{Modifier.EMPTY, Modifier.STATIC}) {
148 list.addAll(generate(template, modifier.getString() + "{", "}"));
149 }
150 return list;
151 }
152
153 private Set<String> getFlags(Modifier modifier) {
154 HashSet<String> set = new HashSet<>();
155 set.add("ACC_IDENTITY");
156 if (modifier != Modifier.EMPTY) {
157 set.add("ACC_" + modifier.getString().toUpperCase());
158 }
159 return set;
160 }
161
162 /**
163 * Class represents part of sources which is inserted in other code.
164 */
165 private static class Data {
166 public final String sources;
167 public final Map<String, Set<String>> class2Flags;
168
169 public Data(String sources, Map<String, Set<String>> class2Flags) {
170 this.sources = sources;
171 this.class2Flags = class2Flags;
172 }
173 }
174 }