org.codehaus.plexus.compiler.csharp.DefaultCSharpCompilerParser Maven / Gradle / Ivy

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package org.codehaus.plexus.compiler.csharp;

import org.codehaus.plexus.compiler.CompilerError;
import org.codehaus.plexus.util.StringUtils;

/**
 * Handles output from both mono with only the line number
 *
 * ex error = "/home/trygvis/dev/com.myrealbox/trunk/mcs/nunit20/core/./TestRunnerThread.cs(29) error CS0246: Cannot find type 'NameValueCollection'"
 *
 * and errors from mono & csc on windows which has column num also
 *
 * ex error = "src\\test\\csharp\\Hierarchy\\Logger.cs(98,4): warning CS0618: 'NUnit.Framework.Assertion' is obsolete: 'Use Assert class instead'";
 *
 * @author Gilles Dodinet
 * @author Trygve Laugstøl
 * @author Matthew Pocock
 * @author Chris Stevenson
 *
 */
public class DefaultCSharpCompilerParser {

    private static String ERROR_PREFIX = "error ";

    private static String COMPILATION_PREFIX = "Compilation ";

    private static String MAGIC_LINE_MARKER = ".cs(";

    private static String MAGIC_LINE_MARKER_2 = ")";


    public static CompilerError parseLine( String line )
    {
        CompilerError ce = null;

        if( isOutputWithNoColumnNumber( line ) )
            ce = parseLineWithNoColumnNumber( line );
        else
            ce = parseLineWithColumnNumberAndLineNumber( line );

        return ce;
    }

    private static boolean isOutputWithNoColumnNumber(String line){

        int i = line.indexOf( MAGIC_LINE_MARKER );

        if( i == -1 ) return true;

        String chunk1 = line.substring( i +  MAGIC_LINE_MARKER.length() );

        int j =  chunk1.indexOf( MAGIC_LINE_MARKER_2 );

        String chunk2 = chunk1.substring(0, j);

        return (chunk2.indexOf( "," ) == -1 );
    }

    private static CompilerError  parseLineWithNoColumnNumber( String line ) {

         String file = null;
         boolean error = true;
         int startline = -1;
         int startcolumn = -1;
         int endline = -1;
         int endcolumn = -1;
         String message;

         if ( line.startsWith( ERROR_PREFIX ) )
         {
             message = line.substring( ERROR_PREFIX.length() );
         }
         else if ( line.startsWith( COMPILATION_PREFIX ) )
         {
             // ignore

             return null;
         }
         else if ( line.indexOf( MAGIC_LINE_MARKER ) != -1 )
         {
             int i = line.indexOf( MAGIC_LINE_MARKER );

             int j = line.indexOf( ' ', i );

             file = line.substring( 0, i + 3 );

             String num = line.substring( i + MAGIC_LINE_MARKER.length(), j - 1 );

             startline = Integer.parseInt( num );

             endline = startline;

             message = line.substring( j + 1 + ERROR_PREFIX.length() );

             error = line.indexOf( ") error" ) != -1;
         }
         else
         {
             System.err.println( "Unknown output: " + line );

             return null;
         }

         return new CompilerError( file,
                                   error,
                                   startline,
                                   startcolumn,
                                   endline,
                                   endcolumn,
                                   message );

    }

    private static CompilerError  parseLineWithColumnNumberAndLineNumber( String line ) {

        String file = null;
        boolean error = true;
        int startline = -1;
        int startcolumn = -1;
        int endline = -1;
        int endcolumn = -1;
        String message;


        if ( line.startsWith( ERROR_PREFIX ) )
        {
            message = line.substring( ERROR_PREFIX.length() );
        }
        else if ( line.startsWith( COMPILATION_PREFIX ) )
        {
            return null;
        }
        else if ( line.indexOf( MAGIC_LINE_MARKER ) != -1 )
        {
            int i = line.indexOf( MAGIC_LINE_MARKER );

            int j = line.indexOf( ' ', i );

            file = line.substring( 0, i + 3 );

            String linecol = line.substring( i + MAGIC_LINE_MARKER.length(), j - 2 );

            String linenum = null;
            String colnum = null;

            if(linecol.indexOf(",") > -1 && linecol.split(",").length == 2 ){
                linenum = linecol.split(",")[0];
                colnum = linecol.split(",")[1];
            }else if ( linecol.split(",").length == 1 ) {
                linenum = linecol.split(",")[0];
                colnum = "-1";
            }else {
                linenum = linecol.trim();
                colnum = "-1";
            }

            startline = StringUtils.isEmpty(linenum) ? -1 : Integer.parseInt( linenum );

            startcolumn = StringUtils.isEmpty(colnum) ? -1 : Integer.parseInt( colnum );

            endline = startline;

            endcolumn = startcolumn;

            message = line.substring( j + 1 + ERROR_PREFIX.length() );

            error = line.indexOf( "): error" ) != -1;
        }
        else
        {
            System.err.println( "Unknown output: " + line );

            return null;
        }

        return new CompilerError( file,
                                  error,
                                  startline,
                                  startcolumn,
                                  endline,
                                  endcolumn,
                                  message );
    }

}