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