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


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
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14  * Copyright (C) 2005 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  * Simple Node that allows editor projects to keep position info in AST
40  * (evaluation does not need this).
41  */
42 public class ArgumentNode extends Node implements INameNode {
43     private static final long serialVersionUID = -6375678995811376530L;
44     private String JavaDoc identifier;
45     
46     public ArgumentNode(ISourcePosition position, String JavaDoc identifier) {
47         super(position, NodeTypes.ARGUMENTNODE);
48         
49         this.identifier = identifier.intern();
50     }
51     
52     private void readObject(java.io.ObjectInputStream JavaDoc in) throws IOException JavaDoc, ClassNotFoundException JavaDoc {
53         in.defaultReadObject();
54         
55         identifier = identifier.intern();
56     }
57
58     public Instruction accept(NodeVisitor visitor) {
59         throw new RuntimeException JavaDoc("ArgumentNode should never be evaluated");
60     }
61     
62     public String JavaDoc getName() {
63         return identifier;
64     }
65     
66     public void setName(String JavaDoc name) {
67         this.identifier = name;
68     }
69
70     public List JavaDoc childNodes() {
71         return EMPTY_LIST;
72     }
73 }
74
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