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package org.aspectj.apache.bcel.classfile;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache BCEL" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache BCEL", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.io.DataInputStream;
import java.io.IOException;
import org.aspectj.apache.bcel.generic.Type;
/**
* This class represents the field info structure, i.e., the representation for a variable in the class. See JVM specification for
* details.
*
* @version $Id: Field.java,v 1.6 2009/09/15 03:33:52 aclement Exp $
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
*/
public final class Field extends FieldOrMethod {
public static final Field[] NoFields = new Field[0];
private Type fieldType = null; // lazily initialized
private Field() {
}
public Field(Field c) {
super(c);
}
Field(DataInputStream dis, ConstantPool cpool) throws IOException {
super(dis, cpool);
}
public Field(int modifiers, int nameIndex, int signatureIndex, Attribute[] attributes, ConstantPool cpool) {
super(modifiers, nameIndex, signatureIndex, attributes, cpool);
}
public void accept(ClassVisitor v) {
v.visitField(this);
}
/**
* @return constant value associated with this field (may be null)
*/
public final ConstantValue getConstantValue() {
return AttributeUtils.getConstantValueAttribute(attributes);
}
/**
* Return string representation close to declaration format, eg: 'public static final short MAX = 100'
*/
@Override
public final String toString() {
// Get names from constant pool
StringBuffer buf = new StringBuffer(Utility.accessToString(modifiers));
if (buf.length() > 0) {
buf.append(" ");
}
String signature = Utility.signatureToString(getSignature());
buf.append(signature).append(" ").append(getName());
ConstantValue cv = getConstantValue();
if (cv != null) {
buf.append(" = ").append(cv);
}
// append all attributes that are *not* "ConstantValue"
for (Attribute a : attributes) {
if (!(a instanceof ConstantValue)) {
buf.append(" [").append(a.toString()).append("]");
}
}
return buf.toString();
}
/** return the type of the field */
public Type getType() {
if (fieldType == null) {
fieldType = Type.getReturnType(getSignature());
}
return fieldType;
}
}
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