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 * IFNE - Branch if int comparison with zero succeeds
023 *
024 * <PRE>
025 * Stack: ..., value -&gt; ...
026 * </PRE>
027 */
028public class IFNE extends IfInstruction {
029
030    /**
031     * Empty constructor needed for Instruction.readInstruction. Not to be used otherwise.
032     */
033    IFNE() {
034    }
035
036    public IFNE(final InstructionHandle target) {
037        super(org.apache.bcel.Const.IFNE, target);
038    }
039
040    /**
041     * Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call
042     * methods according to the class hierarchy in descending order, i.e., the most specific visitXXX() call comes last.
043     *
044     * @param v Visitor object
045     */
046    @Override
047    public void accept(final Visitor v) {
048        v.visitStackConsumer(this);
049        v.visitBranchInstruction(this);
050        v.visitIfInstruction(this);
051        v.visitIFNE(this);
052    }
053
054    /**
055     * @return negation of instruction
056     */
057    @Override
058    public IfInstruction negate() {
059        return new IFEQ(super.getTarget());
060    }
061}