    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 * IF_ACMPEQ - Branch if reference comparison succeeds
    022 *
    023 * <PRE>Stack: ..., value1, value2 -&gt; ...</PRE>
    024 *
    025 * @version $Id$
    026 */
    027public class IF_ACMPEQ extends IfInstruction {
    028
    029    /**
    030     * Empty constructor needed for Instruction.readInstruction.
    031     * Not to be used otherwise.
    032     */
    033    IF_ACMPEQ() {
    034    }
    035
    036
    037    public IF_ACMPEQ(final InstructionHandle target) {
    038        super(org.apache.bcel.Const.IF_ACMPEQ, target);
    039    }
    040
    041
    042    /**
    043     * @return negation of instruction
    044     */
    045    @Override
    046    public IfInstruction negate() {
    047        return new IF_ACMPNE(super.getTarget());
    048    }
    049
    050
    051    /**
    052     * Call corresponding visitor method(s). The order is:
    053     * Call visitor methods of implemented interfaces first, then
    054     * call methods according to the class hierarchy in descending order,
    055     * i.e., the most specific visitXXX() call comes last.
    056     *
    057     * @param v Visitor object
    058     */
    059    @Override
    060    public void accept( final Visitor v ) {
    061        v.visitStackConsumer(this);
    062        v.visitBranchInstruction(this);
    063        v.visitIfInstruction(this);
    064        v.visitIF_ACMPEQ(this);
    065    }
    066}