/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
package com.sun.org.apache.bcel.internal.util;
/* ====================================================================
* The Apache Software License, Version 1.1
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*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
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import java.io.*;
/**
* Utility class that implements a sequence of bytes which can be read
* via the `readByte()' method. This is used to implement a wrapper for the
* Java byte code stream to gain some more readability.
*
* @version $Id: ByteSequence.java,v 1.1.2.1 2005/07/31 23:47:00 jeffsuttor Exp $
* @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
*/
public final class ByteSequence extends DataInputStream {
private ByteArrayStream byte_stream;
public ByteSequence(byte[] bytes) {
super(new ByteArrayStream(bytes));
byte_stream = (ByteArrayStream)in;
}
public final int getIndex() { return byte_stream.getPosition(); }
final void unreadByte() { byte_stream.unreadByte(); }
private static final class ByteArrayStream extends ByteArrayInputStream {
ByteArrayStream(byte[] bytes) { super(bytes); }
final int getPosition() { return pos; } // is protected in ByteArrayInputStream
final void unreadByte() { if(pos > 0) pos--; }
}
}