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 */
017package org.apache.bcel.generic;
018
019/**
020 * Super class for the IFxxx family of instructions.
021 */
022public abstract class IfInstruction extends BranchInstruction implements StackConsumer {
023
024    /**
025     * Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
026     */
027    IfInstruction() {
028    }
029
030    /**
031     * @param opcode opcode of instruction
032     * @param target Target instruction to branch to
033     */
034    protected IfInstruction(final short opcode, final InstructionHandle target) {
035        super(opcode, target);
036    }
037
038    /**
039     * @return negation of instruction, e.g. IFEQ.negate() == IFNE
040     */
041    public abstract IfInstruction negate();
042}