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


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) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
15  * Copyright (C) 2001-2002 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"),
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30  ***** END LICENSE BLOCK *****/
31 package org.jruby.ast;
32
33 import java.util.List JavaDoc;
34
35 import org.jruby.ast.visitor.NodeVisitor;
36 import org.jruby.evaluator.Instruction;
37 import org.jruby.lexer.yacc.ISourcePosition;
38
39 /** Represents a yield statement.
40  *
41  * @author jpetersen
42  */
43 public class YieldNode extends Node {
44     static final long serialVersionUID = -4136185449481135660L;
45
46     private final Node argsNode;
47     private final boolean checkState;
48
49     public YieldNode(ISourcePosition position, Node argsNode, boolean checkState) {
50         super(position, NodeTypes.YIELDNODE);
51         this.argsNode = argsNode;
52         this.checkState = checkState;
53     }
54
55     /**
56      * Accept for the visitor pattern.
57      * @param iVisitor the visitor
58      **/
59     public Instruction accept(NodeVisitor iVisitor) {
60         return iVisitor.visitYieldNode(this);
61     }
62
63     /**
64      * Gets the argsNode.
65      * @return Returns a Node
66      */
67     public Node getArgsNode() {
68         return argsNode;
69     }
70     
71     public boolean getCheckState() {
72         return checkState;
73     }
74
75     public List JavaDoc childNodes() {
76         return createList(argsNode);
77     }
78
79 }
80
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