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) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
15: * Copyright (C) 2001-2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
16: * Copyright (C) 2002 Anders Bengtsson <ndrsbngtssn@yahoo.se>
17: * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
18: * Copyright (C) 2004 Charles O Nutter <headius@headius.com>
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
24: * of those above. If you wish to allow use of your version of this file only
25: * under the terms of either the GPL or the LGPL, and not to allow others to
26: * use your version of this file under the terms of the CPL, indicate your
27: * decision by deleting the provisions above and replace them with the notice
28: * and other provisions required by the GPL or the LGPL. If you do not delete
29: * the provisions above, a recipient may use your version of this file under
30: * the terms of any one of the CPL, the GPL or the LGPL.
31: ***** END LICENSE BLOCK *****/package org.jruby.ast;
32:
33: import java.util.List;
34:
35: import org.jruby.ast.visitor.NodeVisitor;
36: import org.jruby.evaluator.Instruction;
37: import org.jruby.lexer.yacc.ISourcePosition;
38:
39: /**
40: * A new (logical) source code line.
41: * This is used to change the value of the ruby interpreter
42: * source and line values.
43: * There is one such node for each logical line. Logical line differs
44: * from physical line in that a ';' can be used to make several logical
45: * line out of a physical line and a physical line if it is in a comment
46: * or in a string does not necessarily correspond to a physical line.
47: * This is normally a wrapper around another more significant node.
48: * The parser generates such a node around each separate statement.
49: *
50: * @author jpetersen
51: */
52: public class NewlineNode extends Node {
53: static final long serialVersionUID = -6180129177863553832L;
54:
55: private final Node nextNode;
56:
57: public NewlineNode(ISourcePosition position, Node nextNode) {
58: super (position, NodeTypes.NEWLINENODE);
59:
60: this .nextNode = nextNode;
61: }
62:
63: /**
64: * RubyMethod used by visitors.
65: * accepts the visitor
66: * @param iVisitor the visitor to accept
67: **/
68: public Instruction accept(NodeVisitor iVisitor) {
69: return iVisitor.visitNewlineNode(this );
70: }
71:
72: /**
73: * Gets the nextNode.
74: * @return Returns a Node
75: */
76: public Node getNextNode() {
77: return nextNode;
78: }
79:
80: public List childNodes() {
81: return createList(nextNode);
82: }
83:
84: }
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