| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| package com.sun.org.apache.bcel.internal.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.*; |
| import com.sun.org.apache.bcel.internal.Constants; |
| |
| /** |
| * Abstract super class for Fieldref and Methodref constants. |
| * |
| * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> |
| * @see ConstantFieldref |
| * @see ConstantMethodref |
| * @see ConstantInterfaceMethodref |
| */ |
| public abstract class ConstantCP extends Constant { |
| /** References to the constants containing the class and the field signature |
| */ |
| protected int class_index, name_and_type_index; |
| |
| /** |
| * Initialize from another object. |
| */ |
| public ConstantCP(ConstantCP c) { |
| this(c.getTag(), c.getClassIndex(), c.getNameAndTypeIndex()); |
| } |
| |
| /** |
| * Initialize instance from file data. |
| * |
| * @param tag Constant type tag |
| * @param file Input stream |
| * @throws IOException |
| */ |
| ConstantCP(byte tag, DataInputStream file) throws IOException |
| { |
| this(tag, file.readUnsignedShort(), file.readUnsignedShort()); |
| } |
| |
| /** |
| * @param class_index Reference to the class containing the field |
| * @param name_and_type_index and the field signature |
| */ |
| protected ConstantCP(byte tag, int class_index, |
| int name_and_type_index) { |
| super(tag); |
| this.class_index = class_index; |
| this.name_and_type_index = name_and_type_index; |
| } |
| |
| /** |
| * Dump constant field reference to file stream in binary format. |
| * |
| * @param file Output file stream |
| * @throws IOException |
| */ |
| public final void dump(DataOutputStream file) throws IOException |
| { |
| file.writeByte(tag); |
| file.writeShort(class_index); |
| file.writeShort(name_and_type_index); |
| } |
| |
| /** |
| * @return Reference (index) to class this field or method belongs to. |
| */ |
| public final int getClassIndex() { return class_index; } |
| |
| /** |
| * @return Reference (index) to signature of the field. |
| */ |
| public final int getNameAndTypeIndex() { return name_and_type_index; } |
| |
| /** |
| * @param class_index points to Constant_class |
| */ |
| public final void setClassIndex(int class_index) { |
| this.class_index = class_index; |
| } |
| |
| /** |
| * @return Class this field belongs to. |
| */ |
| public String getClass(ConstantPool cp) { |
| return cp.constantToString(class_index, Constants.CONSTANT_Class); |
| } |
| |
| /** |
| * @param name_and_type_index points to Constant_NameAndType |
| */ |
| public final void setNameAndTypeIndex(int name_and_type_index) { |
| this.name_and_type_index = name_and_type_index; |
| } |
| |
| /** |
| * @return String representation. |
| */ |
| public final String toString() { |
| return super.toString() + "(class_index = " + class_index + |
| ", name_and_type_index = " + name_and_type_index + ")"; |
| } |
| } |