You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
158 lines
5.4 KiB
158 lines
5.4 KiB
/*
|
|
* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
|
|
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
|
|
*/
|
|
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 + ")";
|
|
}
|
|
}
|