System.Xml.Xsl.IlGen.GenerateHelper.GetFileName C# (CSharp) Method

        private string GetFileName(ISourceLineInfo sourceInfo)
        {
            string uriString = sourceInfo.Uri;
            if ((object)uriString == (object)_lastUriString)
            {
                return _lastFileName;
            }

            _lastUriString = uriString;
            _lastFileName = SourceLineInfo.GetFileName(uriString);
            return _lastFileName;
        }