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package com.sun.org.apache.bcel.internal.util;

import java.io.ByteArrayInputStream;
import java.io.DataInputStream;

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 1747278 2016-06-07 17:28:43Z britter $
/** * 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 1747278 2016-06-07 17:28:43Z britter $ */
public final class ByteSequence extends DataInputStream { private final ByteArrayStream byteStream; public ByteSequence(final byte[] bytes) { super(new ByteArrayStream(bytes)); byteStream = (ByteArrayStream) in; } public final int getIndex() { return byteStream.getPosition(); } final void unreadByte() { byteStream.unreadByte(); } private static final class ByteArrayStream extends ByteArrayInputStream { ByteArrayStream(final byte[] bytes) { super(bytes); } final int getPosition() { // pos is protected in ByteArrayInputStream return pos; } final void unreadByte() { if (pos > 0) { pos--; } } } }