    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 *  Unless required by applicable law or agreed to in writing, software
    012 *  distributed under the License is distributed on an "AS IS" BASIS,
    013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 *  See the License for the specific language governing permissions and
    015 *  limitations under the License.
    016 *
    017 */
    018package org.apache.bcel.generic;
    019
    020/**
    021 * Super class for the IFxxx family of instructions.
    022 *
    023 * @version $Id$
    024 */
    025public abstract class IfInstruction extends BranchInstruction implements StackConsumer {
    026
    027    /**
    028     * Empty constructor needed for Instruction.readInstruction.
    029     * Not to be used otherwise.
    030     */
    031    IfInstruction() {
    032    }
    033
    034
    035    /**
    036     * @param opcode opcode of instruction
    037     * @param target Target instruction to branch to
    038     */
    039    protected IfInstruction(final short opcode, final InstructionHandle target) {
    040        super(opcode, target);
    041    }
    042
    043
    044    /**
    045     * @return negation of instruction, e.g. IFEQ.negate() == IFNE
    046     */
    047    public abstract IfInstruction negate();
    048}