001 /*
002 $Id: ASTNode.java,v 1.9 2005/04/12 15:04:59 jstrachan Exp $
003
004 Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005
006 Redistribution and use of this software and associated documentation
007 ("Software"), with or without modification, are permitted provided
008 that the following conditions are met:
009
010 1. Redistributions of source code must retain copyright
011 statements and notices. Redistributions must also contain a
012 copy of this document.
013
014 2. Redistributions in binary form must reproduce the
015 above copyright notice, this list of conditions and the
016 following disclaimer in the documentation and/or other
017 materials provided with the distribution.
018
019 3. The name "groovy" must not be used to endorse or promote
020 products derived from this Software without prior written
021 permission of The Codehaus. For written permission,
022 please contact info@codehaus.org.
023
024 4. Products derived from this Software may not be called "groovy"
025 nor may "groovy" appear in their names without prior written
026 permission of The Codehaus. "groovy" is a registered
027 trademark of The Codehaus.
028
029 5. Due credit should be given to The Codehaus -
030 http://groovy.codehaus.org/
031
032 THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
036 THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043 OF THE POSSIBILITY OF SUCH DAMAGE.
044
045 */
046 package org.codehaus.groovy.ast;
047
048 import org.codehaus.groovy.syntax.CSTNode;
049 import org.codehaus.groovy.syntax.Token;
050
051 /**
052 * Base class for any AST node
053 *
054 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
055 * @version $Revision: 1.9 $
056 */
057 public class ASTNode {
058
059 protected static final String[] EMPTY_STRING_ARRAY = {
060 };
061
062 private int lineNumber = -1;
063 private int columnNumber = -1;
064
065 public void visit(GroovyCodeVisitor visitor) {
066 throw new RuntimeException("No visit() method implemented for class: " + getClass().getName());
067 }
068
069 public String getText() {
070 return "<not implemented yet for class: " + getClass().getName() + ">";
071 }
072
073 public int getLineNumber() {
074 return lineNumber;
075 }
076
077 public void setLineNumber(int lineNumber) {
078 this.lineNumber = lineNumber;
079 }
080
081 public int getColumnNumber() {
082 return columnNumber;
083 }
084
085 public void setColumnNumber(int columnNumber) {
086 this.columnNumber = columnNumber;
087 }
088
089 public void setCSTNode(CSTNode node) {
090 Token token = node.getRoot();
091 if (token != null) {
092 setColumnNumber(token.getStartColumn());
093 setLineNumber(token.getStartLine());
094 }
095 if (getLineNumber() < 0) {
096 //System.out.println("No line number for token: " + token);
097 if (node.children() > 0) {
098 for (int i = 1; i < node.size(); i++) {
099 CSTNode child = node.get(i);
100 if (child != null) {
101 setCSTNode(child);
102 if (getLineNumber() >= 0) {
103 break;
104 }
105 }
106 }
107 }
108 }
109 }
110 }