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


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) 2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
15  * Copyright (C) 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"),
22  * in which case the provisions of the GPL or the LGPL are applicable instead
23  * of those above. If you wish to allow use of your version of this file only
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25  * use your version of this file under the terms of the CPL, indicate your
26  * decision by deleting the provisions above and replace them with the notice
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28  * the provisions above, a recipient may use your version of this file under
29  * the terms of any one of the CPL, the GPL or the LGPL.
30  ***** END LICENSE BLOCK *****/
31 package org.jruby.ast;
32
33 import java.io.IOException JavaDoc;
34 import java.util.List JavaDoc;
35
36 import org.jruby.ast.visitor.NodeVisitor;
37 import org.jruby.evaluator.Instruction;
38 import org.jruby.lexer.yacc.ISourcePosition;
39
40 /**
41  *
42  * @author jpetersen
43  */
44 public class OpAsgnNode extends Node {
45     static final long serialVersionUID = -1950295226516487753L;
46
47     private final Node receiverNode;
48     private final Node valueNode;
49     private String JavaDoc variableName;
50     private String JavaDoc operatorName;
51     private String JavaDoc variableNameAsgn;
52
53     public OpAsgnNode(ISourcePosition position, Node receiverNode, Node valueNode, String JavaDoc variableName, String JavaDoc methodName) {
54         super(position, NodeTypes.OPASGNNODE);
55         this.receiverNode = receiverNode;
56         this.valueNode = valueNode;
57         this.variableName = variableName.intern();
58         this.operatorName = methodName.intern();
59         this.variableNameAsgn = (variableName + "=").intern();
60     }
61     
62     private void readObject(java.io.ObjectInputStream JavaDoc in) throws IOException JavaDoc, ClassNotFoundException JavaDoc {
63         in.defaultReadObject();
64         
65         // deserialized strings are not interned; intern it now
66 variableName = variableName.intern();
67         operatorName = operatorName.intern();
68         variableNameAsgn = variableNameAsgn.intern();
69     }
70
71     /**
72      * Accept for the visitor pattern.
73      * @param iVisitor the visitor
74      **/
75     public Instruction accept(NodeVisitor iVisitor) {
76         return iVisitor.visitOpAsgnNode(this);
77     }
78
79     /**
80      * Gets the methodName.
81      * @return Returns a String
82      */
83     public String JavaDoc getOperatorName() {
84         return operatorName;
85     }
86
87     /**
88      * Gets the receiverNode.
89      * @return Returns a Node
90      */
91     public Node getReceiverNode() {
92         return receiverNode;
93     }
94
95     /**
96      * Gets the valueNode.
97      * @return Returns a Node
98      */
99     public Node getValueNode() {
100         return valueNode;
101     }
102
103     /**
104      * Gets the varibaleName.
105      * @return Returns a String
106      */
107     public String JavaDoc getVariableName() {
108         return variableName;
109     }
110     
111     public String JavaDoc getVariableNameAsgn() {
112         return variableNameAsgn;
113     }
114     
115     public List JavaDoc childNodes() {
116         return Node.createList(receiverNode, valueNode);
117     }
118
119 }
120
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