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


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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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14  * Copyright (C) 2006-2007 Thomas E Enebo <enebo@acm.org>
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28 package org.jruby.ast;
29
30 import java.io.IOException JavaDoc;
31 import java.util.List JavaDoc;
32
33 import org.jruby.ast.types.INameNode;
34 import org.jruby.ast.visitor.NodeVisitor;
35 import org.jruby.evaluator.Instruction;
36 import org.jruby.lexer.yacc.ISourcePosition;
37
38 /**
39  * Node that represents an assignment of either an array element or attribute.
40  *
41  */
42 public class AttrAssignNode extends Node implements INameNode, IArgumentNode {
43     private static final long serialVersionUID = 4182783536358350118L;
44     
45     private final Node receiverNode;
46     private String JavaDoc name;
47     private Node argsNode;
48
49     public AttrAssignNode(ISourcePosition position, Node receiverNode, String JavaDoc name, Node argsNode) {
50         super(position, NodeTypes.ATTRASSIGNNODE);
51         
52         this.receiverNode = receiverNode;
53         this.name = name.intern();
54         this.argsNode = argsNode;
55     }
56
57     private void readObject(java.io.ObjectInputStream JavaDoc in) throws IOException JavaDoc, ClassNotFoundException JavaDoc {
58         in.defaultReadObject();
59         
60         // deserialized strings are not interned; intern it now
61 name = name.intern();
62     }
63
64     /**
65      * Accept for the visitor pattern.
66      * @param visitor the visitor
67      **/
68     public Instruction accept(NodeVisitor visitor) {
69         return visitor.visitAttrAssignNode(this);
70     }
71
72     /**
73      * Gets the name.
74      * name is the name of the method called
75      * @return name
76      */
77     public String JavaDoc getName() {
78         return name;
79     }
80     
81     /**
82      * Gets the receiverNode.
83      * receiverNode is the object on which the method is being called
84      * @return receiverNode
85      */
86     public Node getReceiverNode() {
87         return receiverNode;
88     }
89     
90     /**
91      * Gets the argsNode.
92      * argsNode representing the method's arguments' value for this call.
93      * @return argsNode
94      */
95     public Node getArgsNode() {
96         return argsNode;
97     }
98     
99     /**
100      * Set the argsNode
101      *
102      * @param argsNode set the arguments for this node.
103      */
104     public void setArgsNode(Node argsNode) {
105         this.argsNode = argsNode;
106     }
107
108     public List JavaDoc childNodes() {
109         return Node.createList(receiverNode, argsNode);
110     }
111 }
112
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