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1 /***** BEGIN LICENSE BLOCK *****
2  * Version: CPL 1.0/GPL 2.0/LGPL 2.1
3  *
4  * The contents of this file are subject to the Common Public
5  * License Version 1.0 (the "License"); you may not use this file
6  * except in compliance with the License. You may obtain a copy of
7  * the License at http://www.eclipse.org/legal/cpl-v10.html
8  *
9  * Software distributed under the License is distributed on an "AS
10  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
11  * implied. See the License for the specific language governing
12  * rights and limitations under the License.
13  *
14  * Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
15  * Copyright (C) 2001-2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
16  * Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
17  * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
18  *
19  * Alternatively, the contents of this file may be used under the terms of
20  * either of the GNU General Public License Version 2 or later (the "GPL"),
21  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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30  ***** END LICENSE BLOCK *****/
31 package org.jruby.ast;
32
33 import java.util.List JavaDoc;
34
35 import org.jruby.ast.visitor.NodeVisitor;
36 import org.jruby.evaluator.Instruction;
37 import org.jruby.lexer.yacc.ISourcePosition;
38
39 /**
40  *
41  * @author jpetersen
42  */
43 public class WhenNode extends Node {
44     static final long serialVersionUID = 9099987602002276708L;
45
46     private final Node expressionNodes;
47     private final Node bodyNode;
48     private final Node nextCase;
49
50     public WhenNode(ISourcePosition position, Node expressionNodes, Node bodyNode, Node nextCase) {
51         super(position, NodeTypes.WHENNODE);
52         this.expressionNodes = expressionNodes;
53         this.bodyNode = bodyNode;
54         this.nextCase = nextCase;
55     }
56
57     /**
58      * Accept for the visitor pattern.
59      * @param iVisitor the visitor
60      **/
61     public Instruction accept(NodeVisitor iVisitor) {
62         return iVisitor.visitWhenNode(this);
63     }
64
65     /**
66      * Gets the bodyNode.
67      * @return Returns a INode
68      */
69     public Node getBodyNode() {
70         return bodyNode;
71     }
72     
73     /**
74      * Gets the next case node (if any).
75      */
76     public Node getNextCase() {
77         return nextCase;
78     }
79
80     /**
81      * Get the expressionNode(s).
82      */
83     public Node getExpressionNodes() {
84         return expressionNodes;
85     }
86
87     public List JavaDoc childNodes() {
88         return Node.createList(expressionNodes, bodyNode, nextCase);
89     }
90 }
91
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