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1 /***** BEGIN LICENSE BLOCK *****
2  * Version: CPL 1.0/GPL 2.0/LGPL 2.1
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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
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7  * the License at http://www.eclipse.org/legal/cpl-v10.html
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10  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
11  * implied. See the License for the specific language governing
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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 Anders Bengtsson <ndrsbngtssn@yahoo.se>
17  * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
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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  * a Literal Hash.
41  * this can represent either a {a=&amp;b, c=&amp;d} type expression or the list of default
42  * values in a method call.
43  * @author jpetersen
44  */

45 public class HashNode extends Node {
46     static final long serialVersionUID = -7554050553303344025L;
47
48     private final ListNode listNode;
49     
50     public HashNode(ISourcePosition position, ListNode listNode) {
51         super(position, NodeTypes.HASHNODE);
52         this.listNode = listNode;
53     }
54
55     /**
56      * Accept for the visitor pattern.
57      * @param iVisitor the visitor
58      **/

59     public Instruction accept(NodeVisitor iVisitor) {
60         return iVisitor.visitHashNode(this);
61     }
62
63     /**
64      * Gets the listNode.
65      * @return Returns a IListNode
66      */

67     public ListNode getListNode() {
68         return listNode;
69     }
70     
71     public List JavaDoc childNodes() {
72         return createList(listNode);
73     }
74
75 }
76
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