01: /***** BEGIN LICENSE BLOCK *****
02: * Version: CPL 1.0/GPL 2.0/LGPL 2.1
03: *
04: * The contents of this file are subject to the Common Public
05: * License Version 1.0 (the "License"); you may not use this file
06: * except in compliance with the License. You may obtain a copy of
07: * the License at http://www.eclipse.org/legal/cpl-v10.html
08: *
09: * 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 Benoit Cerrina <b.cerrina@wanadoo.fr>
15: * Copyright (C) 2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
16: * Copyright (C) 2004 Charles O Nutter <headius@headius.com>
17: * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
18: * Copyright (C) 2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
19: * Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
20: *
21: * Alternatively, the contents of this file may be used under the terms of
22: * either of the GNU General Public License Version 2 or later (the "GPL"),
23: * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
24: * in which case the provisions of the GPL or the LGPL are applicable instead
25: * of those above. If you wish to allow use of your version of this file only
26: * under the terms of either the GPL or the LGPL, and not to allow others to
27: * use your version of this file under the terms of the CPL, indicate your
28: * decision by deleting the provisions above and replace them with the notice
29: * and other provisions required by the GPL or the LGPL. If you do not delete
30: * the provisions above, a recipient may use your version of this file under
31: * the terms of any one of the CPL, the GPL or the LGPL.
32: ***** END LICENSE BLOCK *****/package org.jruby.ast;
33:
34: import java.io.IOException;
35: import java.util.List;
36:
37: import org.jruby.ast.types.INameNode;
38: import org.jruby.ast.visitor.NodeVisitor;
39: import org.jruby.evaluator.Instruction;
40: import org.jruby.lexer.yacc.ISourcePosition;
41:
42: /**
43: * Represents an assignment to a global variable.
44: *
45: * @author jpetersen
46: */
47: public class GlobalAsgnNode extends AssignableNode implements INameNode {
48: static final long serialVersionUID = 2278414591762936906L;
49:
50: private String name;
51:
52: public GlobalAsgnNode(ISourcePosition position, String name,
53: Node valueNode) {
54: super (position, NodeTypes.GLOBALASGNNODE);
55:
56: this .name = name.intern();
57: setValueNode(valueNode);
58: }
59:
60: private void readObject(java.io.ObjectInputStream in)
61: throws IOException, ClassNotFoundException {
62: in.defaultReadObject();
63:
64: // deserialized strings are not interned; intern it now
65: name = name.intern();
66: }
67:
68: /**
69: * RubyMethod used by visitors.
70: * accepts the visitor
71: * @param iVisitor the visitor to accept
72: **/
73: public Instruction accept(NodeVisitor iVisitor) {
74: return iVisitor.visitGlobalAsgnNode(this );
75: }
76:
77: /**
78: * Gets the name.
79: * @return Returns a String
80: */
81: public String getName() {
82: return name;
83: }
84:
85: public List childNodes() {
86: return createList(getValueNode());
87: }
88:
89: }
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