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Java > Open Source Codes > org > jruby > ast > Colon2Node


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) 2004-2006 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.types.INameNode;
36 import org.jruby.ast.visitor.NodeVisitor;
37 import org.jruby.evaluator.Instruction;
38 import org.jruby.lexer.yacc.ISourcePosition;
39
40 /** Represents a '::' constant access or method call.
41  *
42  * @author jpetersen
43  */
44 public class Colon2Node extends Colon3Node implements INameNode {
45     static final long serialVersionUID = -3250593470034657352L;
46
47     private final Node leftNode;
48
49     public Colon2Node(ISourcePosition position, Node leftNode, String JavaDoc name) {
50         super(position, NodeTypes.COLON2NODE, name);
51         this.leftNode = leftNode;
52     }
53     
54     /**
55      * Accept for the visitor pattern.
56      * @param iVisitor the visitor
57      **/
58     public Instruction accept(NodeVisitor iVisitor) {
59         return iVisitor.visitColon2Node(this);
60     }
61
62     /**
63      * Gets the leftNode.
64      * @return Returns a Node
65      */
66     public Node getLeftNode() {
67         return leftNode;
68     }
69
70     public List JavaDoc childNodes() {
71         return Node.createList(leftNode);
72     }
73     
74     public String JavaDoc toString() {
75         String JavaDoc result = "Colon2Node [";
76         if (leftNode != null) result += leftNode;
77         result += getName();
78         return result + "]";
79     }
80 }
81
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