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Java > Open Source Codes > org > apache > bcel > generic > SWAP


1 /*
2  * Copyright 2000-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17 package org.apache.bcel.generic;
18
19 /**
20  * SWAP - Swa top operand stack word
21  * <PRE>Stack: ..., word2, word1 -&gt; ..., word1, word2</PRE>
22  *
23  * @version $Id: SWAP.java 386056 2006-03-15 11:31:56Z tcurdt $
24  * @author <A HREF="mailto:m.dahm@gmx.de">M. Dahm</A>
25  */
26 public class SWAP extends StackInstruction implements StackConsumer, StackProducer {
27
28     public SWAP() {
29         super(org.apache.bcel.Constants.SWAP);
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     public void accept( Visitor v ) {
42         v.visitStackConsumer(this);
43         v.visitStackProducer(this);
44         v.visitStackInstruction(this);
45         v.visitSWAP(this);
46     }
47 }
48
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