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 }