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157 lines
5.3 KiB
157 lines
5.3 KiB
package com.fr.third.aspectj.apache.bcel.classfile; |
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/* ==================================================================== |
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* The Apache Software License, Version 1.1 |
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* |
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* Copyright (c) 2001 The Apache Software Foundation. All rights |
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* reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* 3. The end-user documentation included with the redistribution, |
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* if any, must include the following acknowledgment: |
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* "This product includes software developed by the |
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* Apache Software Foundation (http://www.apache.org/)." |
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* Alternately, this acknowledgment may appear in the software itself, |
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* if and wherever such third-party acknowledgments normally appear. |
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* |
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* 4. The names "Apache" and "Apache Software Foundation" and |
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* "Apache BCEL" must not be used to endorse or promote products |
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* derived from this software without prior written permission. For |
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* written permission, please contact apache@apache.org. |
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* |
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* 5. Products derived from this software may not be called "Apache", |
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* "Apache BCEL", nor may "Apache" appear in their name, without |
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* prior written permission of the Apache Software Foundation. |
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* |
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* ==================================================================== |
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* |
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* This software consists of voluntary contributions made by many |
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* individuals on behalf of the Apache Software Foundation. For more |
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* information on the Apache Software Foundation, please see |
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* <http://www.apache.org/>. |
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*/ |
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import java.io.DataInputStream; |
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import java.io.DataOutputStream; |
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import java.io.IOException; |
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import com.fr.third.aspectj.apache.bcel.Constants; |
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/** |
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* This class is derived from the abstract <A HREF="com.fr.third.aspectj.apache.bcel.classfile.Constant.html">Constant</A> class and |
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* represents a reference to the name and signature of a field or method. |
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* |
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* @version $Id: ConstantNameAndType.java,v 1.5 2009/09/16 00:43:49 aclement Exp $ |
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* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
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* @see Constant |
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*/ |
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public final class ConstantNameAndType extends Constant { |
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private int name_index; // Name of field/method |
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private int signature_index; // and its signature. |
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/** |
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* Initialize instance from file data. |
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* |
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* @param file Input stream |
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* @throws IOException |
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*/ |
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ConstantNameAndType(DataInputStream file) throws IOException { |
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this(file.readUnsignedShort(), file.readUnsignedShort()); |
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} |
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/** |
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* @param name_index Name of field/method |
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* @param signature_index and its signature |
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*/ |
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public ConstantNameAndType(int name_index, int signature_index) { |
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super(Constants.CONSTANT_NameAndType); |
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this.name_index = name_index; |
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this.signature_index = signature_index; |
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} |
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/** |
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* Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the |
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* hierarchy of methods, fields, attributes, etc. spawns a tree of objects. |
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* |
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* @param v Visitor object |
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*/ |
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@Override |
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public void accept(ClassVisitor v) { |
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v.visitConstantNameAndType(this); |
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} |
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/** |
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* Dump name and signature index to file stream in binary format. |
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* |
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* @param file Output file stream |
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* @throws IOException |
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*/ |
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@Override |
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public final void dump(DataOutputStream file) throws IOException { |
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file.writeByte(tag); |
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file.writeShort(name_index); |
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file.writeShort(signature_index); |
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} |
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/** |
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* @return Name index in constant pool of field/method name. |
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*/ |
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public final int getNameIndex() { |
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return name_index; |
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} |
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/** |
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* @return name |
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*/ |
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public final String getName(ConstantPool cp) { |
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return cp.constantToString(getNameIndex(), Constants.CONSTANT_Utf8); |
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} |
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/** |
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* @return Index in constant pool of field/method signature. |
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*/ |
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public final int getSignatureIndex() { |
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return signature_index; |
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} |
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/** |
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* @return signature |
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*/ |
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public final String getSignature(ConstantPool cp) { |
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return cp.constantToString(getSignatureIndex(), Constants.CONSTANT_Utf8); |
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} |
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@Override |
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public final String toString() { |
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return super.toString() + "(name_index = " + name_index + ", signature_index = " + signature_index + ")"; |
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} |
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@Override |
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public String getValue() { |
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return toString(); |
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} |
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}
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