1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 package org.apache.bcel.generic; 19 20 /** 21 * DUP2_X1 - Duplicate two top operand stack words and put three down 22 * <PRE>Stack: ..., word3, word2, word1 -> ..., word2, word1, word3, word2, word1</PRE> 23 * 24 * @version $Id$ 25 */ 26 public class DUP2_X1 extends StackInstruction { 27 DUP2_X1()28 public DUP2_X1() { 29 super(org.apache.bcel.Const.DUP2_X1); 30 } 31 32 33 /** 34 * Call corresponding visitor method(s). The order is: 35 * Call visitor methods of implemented interfaces first, then 36 * call methods according to the class hierarchy in descending order, 37 * i.e., the most specific visitXXX() call comes last. 38 * 39 * @param v Visitor object 40 */ 41 @Override accept( final Visitor v )42 public void accept( final Visitor v ) { 43 v.visitStackInstruction(this); 44 v.visitDUP2_X1(this); 45 } 46 } 47