001 package org.codehaus.groovy.control.messages; 002 003 import java.io.PrintWriter; 004 005 import org.codehaus.groovy.control.Janitor; 006 import org.codehaus.groovy.control.SourceUnit; 007 import org.codehaus.groovy.syntax.SyntaxException; 008 009 010 /** 011 * A class for error messages produced by the parser system. 012 * 013 * @author <a href="mailto:cpoirier@dreaming.org">Chris Poirier</a> 014 * @version $Id: SyntaxErrorMessage.java,v 1.4 2005/06/10 09:55:30 cstein Exp $ 015 */ 016 017 public class SyntaxErrorMessage extends Message { 018 protected SyntaxException cause = null; 019 protected SourceUnit source; 020 021 public SyntaxErrorMessage(SyntaxException cause, SourceUnit source) { 022 this.cause = cause; 023 this.source = source; 024 } 025 026 027 /** 028 * Returns the underlying SyntaxException. 029 */ 030 031 public SyntaxException getCause() { 032 return this.cause; 033 } 034 035 036 /** 037 * Writes out a nicely formatted summary of the syntax error. 038 */ 039 040 public void write(PrintWriter output, Janitor janitor) { 041 String name = source.getName(); 042 int line = getCause().getStartLine(); 043 int column = getCause().getStartColumn(); 044 String sample = source.getSample(line, column, janitor); 045 046 output.print(name + ": " + line + ": " + getCause().getMessage()); 047 if (sample != null) { 048 output.println(); 049 output.print(sample); 050 output.println(); 051 } 052 } 053 054 055 } 056 057 058