public static InputLocation merge( InputLocation target, InputLocation source, boolean sourceDominant )
    {
        if ( source == null )
        {
            return target;
        }
        else if ( target == null )
        {
            return source;
        }

        InputLocation result =
            new InputLocation( target.getLineNumber(), target.getColumnNumber(), target.getSource() );

        java.util.Map<Object, InputLocation> locations;
        java.util.Map<Object, InputLocation> sourceLocations = source.getLocations();
        java.util.Map<Object, InputLocation> targetLocations = target.getLocations();
        if ( sourceLocations == null )
        {
            locations = targetLocations;
        }
        else if ( targetLocations == null )
        {
            locations = sourceLocations;
        }
        else
        {
            locations = new java.util.LinkedHashMap();