1 /*
2 * reserved comment block
3 * DO NOT REMOVE OR ALTER!
4 */
5 package com.sun.org.apache.bcel.internal.classfile;
6
7 /* ====================================================================
8 * The Apache Software License, Version 1.1
9 *
10 * Copyright (c) 2001 The Apache Software Foundation. All rights
11 * reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. The end-user documentation included with the redistribution,
26 * if any, must include the following acknowledgment:
27 * "This product includes software developed by the
28 * Apache Software Foundation (http://www.apache.org/)."
29 * Alternately, this acknowledgment may appear in the software itself,
30 * if and wherever such third-party acknowledgments normally appear.
31 *
32 * 4. The names "Apache" and "Apache Software Foundation" and
33 * "Apache BCEL" must not be used to endorse or promote products
34 * derived from this software without prior written permission. For
35 * written permission, please contact apache@apache.org.
36 *
37 * 5. Products derived from this software may not be called "Apache",
38 * "Apache BCEL", nor may "Apache" appear in their name, without
39 * prior written permission of the Apache Software Foundation.
40 *
41 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
42 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
45 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
48 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
49 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
50 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
51 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * SUCH DAMAGE.
53 * ====================================================================
54 *
55 * This software consists of voluntary contributions made by many
56 * individuals on behalf of the Apache Software Foundation. For more
57 * information on the Apache Software Foundation, please see
58 * <http://www.apache.org/>.
59 */
60
61 import com.sun.org.apache.bcel.internal.Constants;
62
63 /**
64 * Super class for all objects that have modifiers like private, final, ...
65 * I.e. classes, fields, and methods.
66 *
67 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
68 */
69 public abstract class AccessFlags implements java.io.Serializable {
70 protected int access_flags;
71
72 public AccessFlags() {}
73
74 /**
75 * @param a inital access flags
76 */
77 public AccessFlags(int a) {
78 access_flags = a;
79 }
80
81 /**
82 * @return Access flags of the object aka. "modifiers".
83 */
84 public final int getAccessFlags() { return access_flags; }
85
86 /**
87 * @return Access flags of the object aka. "modifiers".
88 */
89 public final int getModifiers() { return access_flags; }
90
91 /** Set access flags aka "modifiers".
92 * @param access_flags Access flags of the object.
93 */
94 public final void setAccessFlags(int access_flags) {
95 this.access_flags = access_flags;
96 }
97
98 /** Set access flags aka "modifiers".
99 * @param access_flags Access flags of the object.
100 */
101 public final void setModifiers(int access_flags) {
102 setAccessFlags(access_flags);
103 }
104
105 private final void setFlag(int flag, boolean set) {
106 if((access_flags & flag) != 0) { // Flag is set already
107 if(!set) // Delete flag ?
108 access_flags ^= flag;
109 } else { // Flag not set
110 if(set) // Set flag ?
111 access_flags |= flag;
112 }
113 }
114
115 public final void isPublic(boolean flag) { setFlag(Constants.ACC_PUBLIC, flag); }
116 public final boolean isPublic() {
117 return (access_flags & Constants.ACC_PUBLIC) != 0;
118 }
119
120 public final void isPrivate(boolean flag) { setFlag(Constants.ACC_PRIVATE, flag); }
121 public final boolean isPrivate() {
122 return (access_flags & Constants.ACC_PRIVATE) != 0;
123 }
124
125 public final void isProtected(boolean flag) { setFlag(Constants.ACC_PROTECTED, flag); }
126 public final boolean isProtected() {
127 return (access_flags & Constants.ACC_PROTECTED) != 0;
128 }
129
130 public final void isStatic(boolean flag) { setFlag(Constants.ACC_STATIC, flag); }
131 public final boolean isStatic() {
132 return (access_flags & Constants.ACC_STATIC) != 0;
133 }
134
135 public final void isFinal(boolean flag) { setFlag(Constants.ACC_FINAL, flag); }
136 public final boolean isFinal() {
137 return (access_flags & Constants.ACC_FINAL) != 0;
138 }
139
140 public final void isSynchronized(boolean flag) { setFlag(Constants.ACC_SYNCHRONIZED, flag); }
141 public final boolean isSynchronized() {
142 return (access_flags & Constants.ACC_SYNCHRONIZED) != 0;
143 }
144
145 public final void isVolatile(boolean flag) { setFlag(Constants.ACC_VOLATILE, flag); }
146 public final boolean isVolatile() {
147 return (access_flags & Constants.ACC_VOLATILE) != 0;
148 }
149
150 public final void isTransient(boolean flag) { setFlag(Constants.ACC_TRANSIENT, flag); }
151 public final boolean isTransient() {
152 return (access_flags & Constants.ACC_TRANSIENT) != 0;
153 }
154
155 public final void isNative(boolean flag) { setFlag(Constants.ACC_NATIVE, flag); }
156 public final boolean isNative() {
157 return (access_flags & Constants.ACC_NATIVE) != 0;
158 }
159
160 public final void isInterface(boolean flag) { setFlag(Constants.ACC_INTERFACE, flag); }
161 public final boolean isInterface() {
162 return (access_flags & Constants.ACC_INTERFACE) != 0;
163 }
164
165 public final void isAbstract(boolean flag) { setFlag(Constants.ACC_ABSTRACT, flag); }
166 public final boolean isAbstract() {
167 return (access_flags & Constants.ACC_ABSTRACT) != 0;
168 }
169
170 public final void isStrictfp(boolean flag) { setFlag(Constants.ACC_STRICT, flag); }
171 public final boolean isStrictfp() {
172 return (access_flags & Constants.ACC_STRICT) != 0;
173 }
174 }