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/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999-2003 Shigeru Chiba. All Rights Reserved.
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. Alternatively, the contents of this file may be used under
* the terms of the GNU Lesser General Public License Version 2.1 or later.
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*/
package javassist;
import javassist.bytecode.AccessFlag;
/**
* The Modifier class provides static methods and constants to decode
* class and member access modifiers. The constant values are equivalent
* to the corresponding values in <code>javassist.bytecode.AccessFlag</code>.
*
* <p>All the methods/constants in this class are compatible with
* ones in <code>java.lang.reflect.Modifier</code>.
*
* @see CtClass#getModifiers()
*/
public class Modifier {
public static final int PUBLIC = AccessFlag.PUBLIC;
public static final int PRIVATE = AccessFlag.PRIVATE;
public static final int PROTECTED = AccessFlag.PROTECTED;
public static final int STATIC = AccessFlag.STATIC;
public static final int FINAL = AccessFlag.FINAL;
public static final int SYNCHRONIZED = AccessFlag.SYNCHRONIZED;
public static final int VOLATILE = AccessFlag.VOLATILE;
public static final int TRANSIENT = AccessFlag.TRANSIENT;
public static final int NATIVE = AccessFlag.NATIVE;
public static final int INTERFACE = AccessFlag.INTERFACE;
public static final int ABSTRACT = AccessFlag.ABSTRACT;
public static final int STRICT = AccessFlag.STRICT;
/**
* Returns true if the modifiers include the <tt>public</tt>
* modifier.
*/
public static boolean isPublic(int mod) {
return (mod & PUBLIC) != 0;
}
/**
* Returns true if the modifiers include the <tt>private</tt>
* modifier.
*/
public static boolean isPrivate(int mod) {
return (mod & PRIVATE) != 0;
}
/**
* Returns true if the modifiers include the <tt>protected</tt>
* modifier.
*/
public static boolean isProtected(int mod) {
return (mod & PROTECTED) != 0;
}
/**
* Returns true if the modifiers include the <tt>static</tt>
* modifier.
*/
public static boolean isStatic(int mod) {
return (mod & STATIC) != 0;
}
/**
* Returns true if the modifiers include the <tt>final</tt>
* modifier.
*/
public static boolean isFinal(int mod) {
return (mod & FINAL) != 0;
}
/**
* Returns true if the modifiers include the <tt>synchronized</tt>
* modifier.
*/
public static boolean isSynchronized(int mod) {
return (mod & SYNCHRONIZED) != 0;
}
/**
* Returns true if the modifiers include the <tt>volatile</tt>
* modifier.
*/
public static boolean isVolatile(int mod) {
return (mod & VOLATILE) != 0;
}
/**
* Returns true if the modifiers include the <tt>transient</tt>
* modifier.
*/
public static boolean isTransient(int mod) {
return (mod & TRANSIENT) != 0;
}
/**
* Returns true if the modifiers include the <tt>native</tt>
* modifier.
*/
public static boolean isNative(int mod) {
return (mod & NATIVE) != 0;
}
/**
* Returns true if the modifiers include the <tt>interface</tt>
* modifier.
*/
public static boolean isInterface(int mod) {
return (mod & INTERFACE) != 0;
}
/**
* Returns true if the modifiers include the <tt>abstract</tt>
* modifier.
*/
public static boolean isAbstract(int mod) {
return (mod & ABSTRACT) != 0;
}
/**
* Returns true if the modifiers include the <tt>strictfp</tt>
* modifier.
*/
public static boolean isStrict(int mod) {
return (mod & STRICT) != 0;
}
/**
* Truns the public bit on. The protected and private bits are
* cleared.
*/
public static int setPublic(int mod) {
return (mod & ~(PRIVATE | PROTECTED)) | PUBLIC;
}
/**
* Truns the protected bit on. The protected and public bits are
* cleared.
*/
public static int setProtected(int mod) {
return (mod & ~(PRIVATE | PUBLIC)) | PROTECTED;
}
/**
* Truns the private bit on. The protected and private bits are
* cleared.
*/
public static int setPrivate(int mod) {
return (mod & ~(PROTECTED | PUBLIC)) | PRIVATE;
}
/**
* Clears the public, protected, and private bits.
*/
public static int setPackage(int mod) {
return (mod & ~(PROTECTED | PUBLIC | PRIVATE));
}
/**
* Clears a specified bit in <code>mod</code>.
*/
public static int clear(int mod, int clearBit) {
return mod & ~clearBit;
}
public static String toString(int mod) {
return java.lang.reflect.Modifier.toString(mod);
}
}
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