1 /*
2 * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
3 */
4 /*
5 * Licensed to the Apache Software Foundation (ASF) under one or more
6 * contributor license agreements. See the NOTICE file distributed with
7 * this work for additional information regarding copyright ownership.
8 * The ASF licenses this file to You under the Apache License, Version 2.0
9 * (the "License"); you may not use this file except in compliance with
10 * the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20 package com.sun.org.apache.bcel.internal.classfile;
21
22 import com.sun.org.apache.bcel.internal.Const;
23
24 /**
25 * Super class for all objects that have modifiers like private, final, ... I.e.
26 * classes, fields, and methods.
27 *
28 * @version $Id$
29 * @LastModified: Jun 2019
30 */
31 public abstract class AccessFlags {
32
33 private int access_flags;
34
35 public AccessFlags() {
36 }
37
38 /**
39 * @param a
40 * inital access flags
41 */
42 public AccessFlags(final int a) {
43 access_flags = a;
44 }
45
46 /**
47 * @return Access flags of the object aka. "modifiers".
48 */
49 public final int getAccessFlags() {
50 return access_flags;
51 }
52
53 /**
54 * @return Access flags of the object aka. "modifiers".
55 */
56 public final int getModifiers() {
57 return access_flags;
58 }
59
60 /**
61 * Set access flags aka "modifiers".
62 *
63 * @param access_flags
64 * Access flags of the object.
65 */
66 public final void setAccessFlags(final int access_flags) {
67 this.access_flags = access_flags;
68 }
69
70 /**
71 * Set access flags aka "modifiers".
72 *
73 * @param access_flags
74 * Access flags of the object.
75 */
76 public final void setModifiers(final int access_flags) {
77 setAccessFlags(access_flags);
78 }
79
80 private void setFlag(final int flag, final boolean set) {
81 if ((access_flags & flag) != 0) { // Flag is set already
82 if (!set) {
83 access_flags ^= flag;
84 }
85 } else { // Flag not set
86 if (set) {
87 access_flags |= flag;
88 }
89 }
90 }
91
92 public final void isPublic(final boolean flag) {
93 setFlag(Const.ACC_PUBLIC, flag);
94 }
95
96 public final boolean isPublic() {
97 return (access_flags & Const.ACC_PUBLIC) != 0;
98 }
99
100 public final void isPrivate(final boolean flag) {
101 setFlag(Const.ACC_PRIVATE, flag);
102 }
103
104 public final boolean isPrivate() {
105 return (access_flags & Const.ACC_PRIVATE) != 0;
106 }
107
108 public final void isProtected(final boolean flag) {
109 setFlag(Const.ACC_PROTECTED, flag);
110 }
111
112 public final boolean isProtected() {
113 return (access_flags & Const.ACC_PROTECTED) != 0;
114 }
115
116 public final void isStatic(final boolean flag) {
117 setFlag(Const.ACC_STATIC, flag);
118 }
119
120 public final boolean isStatic() {
121 return (access_flags & Const.ACC_STATIC) != 0;
122 }
123
124 public final void isFinal(final boolean flag) {
125 setFlag(Const.ACC_FINAL, flag);
126 }
127
128 public final boolean isFinal() {
129 return (access_flags & Const.ACC_FINAL) != 0;
130 }
131
132 public final void isSynchronized(final boolean flag) {
133 setFlag(Const.ACC_SYNCHRONIZED, flag);
134 }
135
136 public final boolean isSynchronized() {
137 return (access_flags & Const.ACC_SYNCHRONIZED) != 0;
138 }
139
140 public final void isVolatile(final boolean flag) {
141 setFlag(Const.ACC_VOLATILE, flag);
142 }
143
144 public final boolean isVolatile() {
145 return (access_flags & Const.ACC_VOLATILE) != 0;
146 }
147
148 public final void isTransient(final boolean flag) {
149 setFlag(Const.ACC_TRANSIENT, flag);
150 }
151
152 public final boolean isTransient() {
153 return (access_flags & Const.ACC_TRANSIENT) != 0;
154 }
155
156 public final void isNative(final boolean flag) {
157 setFlag(Const.ACC_NATIVE, flag);
158 }
159
160 public final boolean isNative() {
161 return (access_flags & Const.ACC_NATIVE) != 0;
162 }
163
164 public final void isInterface(final boolean flag) {
165 setFlag(Const.ACC_INTERFACE, flag);
166 }
167
168 public final boolean isInterface() {
169 return (access_flags & Const.ACC_INTERFACE) != 0;
170 }
171
172 public final void isAbstract(final boolean flag) {
173 setFlag(Const.ACC_ABSTRACT, flag);
174 }
175
176 public final boolean isAbstract() {
177 return (access_flags & Const.ACC_ABSTRACT) != 0;
178 }
179
180 public final void isStrictfp(final boolean flag) {
181 setFlag(Const.ACC_STRICT, flag);
182 }
183
184 public final boolean isStrictfp() {
185 return (access_flags & Const.ACC_STRICT) != 0;
186 }
187
188 public final void isSynthetic(final boolean flag) {
189 setFlag(Const.ACC_SYNTHETIC, flag);
190 }
191
192 public final boolean isSynthetic() {
193 return (access_flags & Const.ACC_SYNTHETIC) != 0;
194 }
195
196 public final void isAnnotation(final boolean flag) {
197 setFlag(Const.ACC_ANNOTATION, flag);
198 }
199
200 public final boolean isAnnotation() {
201 return (access_flags & Const.ACC_ANNOTATION) != 0;
202 }
203
204 public final void isEnum(final boolean flag) {
205 setFlag(Const.ACC_ENUM, flag);
206 }
207
208 public final boolean isEnum() {
209 return (access_flags & Const.ACC_ENUM) != 0;
210 }
211
212 public final void isVarArgs(final boolean flag) {
213 setFlag(Const.ACC_VARARGS, flag);
214 }
215
216 public final boolean isVarArgs() {
217 return (access_flags & Const.ACC_VARARGS) != 0;
218 }
219 }