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


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 Benoit Cerrina <b.cerrina@wanadoo.fr>
15  * Copyright (C) 2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
16  * Copyright (C) 2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
17  * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
18  * Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
19  *
20  * Alternatively, the contents of this file may be used under the terms of
21  * either of the GNU General Public License Version 2 or later (the "GPL"),
22  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
23  * in which case the provisions of the GPL or the LGPL are applicable instead
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31  ***** END LICENSE BLOCK *****/
32 package org.jruby.ast;
33
34 import org.jruby.ast.types.ILiteralNode;
35 import org.jruby.ast.visitor.NodeVisitor;
36 import org.jruby.evaluator.Instruction;
37 import org.jruby.lexer.yacc.ISourcePosition;
38
39 /**
40  * Dynamic regexp node.
41  * a regexp is dynamic if it contains some expressions which will need to be evaluated
42  * everytime the regexp is used for a match
43  * @author jpetersen
44  */
45 public class DRegexpNode extends ListNode implements ILiteralNode {
46     static final long serialVersionUID = 7307853378003210140L;
47
48     private final int options;
49     private final boolean once;
50     
51     public DRegexpNode(ISourcePosition position) {
52         this(position, 0, false);
53     }
54
55     public DRegexpNode(ISourcePosition position, DStrNode node, int options, boolean once) {
56         super(position, NodeTypes.DREGEXPNODE);
57
58         this.options = options;
59         this.once = once;
60         
61         addAll(node);
62     }
63
64     public DRegexpNode(ISourcePosition position, int options, boolean once) {
65         super(position, NodeTypes.DREGEXPNODE);
66
67         this.options = options;
68         this.once = once;
69     }
70
71     /**
72      * Accept for the visitor pattern.
73      * @param iVisitor the visitor
74      **/
75     public Instruction accept(NodeVisitor iVisitor) {
76         return iVisitor.visitDRegxNode(this);
77     }
78
79     /**
80      * Gets the once.
81      * @return Returns a boolean
82      */
83     public boolean getOnce() {
84         return once;
85     }
86
87     /**
88      * Gets the options.
89      * @return Returns a int
90      */
91     public int getOptions() {
92         return options;
93     }
94 }
95
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