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/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You under the Apache License, Version 2.0

 * (the "License"); you may not use this file except in compliance with

 * the License.  You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

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

/**

 * Super class for stack operations like DUP and POP.

 *

 * @version $Id: StackInstruction.java 1747278 2016-06-07 17:28:43Z britter $

 */

public abstract class StackInstruction extends Instruction {

    /**

     * Empty constructor needed for the Class.newInstance() statement in

     * Instruction.readInstruction(). Not to be used otherwise.

     */

    StackInstruction() {

    }

    /**

     * @param opcode instruction opcode

     */

    protected StackInstruction(final short opcode) {

        super(opcode, (short) 1);

    }

    /** @return Type.UNKNOWN

     */

    public Type getType( final ConstantPoolGen cp ) {

        return Type.UNKNOWN;

    }

}