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: IfInstruction.java 1812166 2017-10-13 23:48:11Z ggregory $
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}