Jurassic.Library.ObjectInstance.ToString C# (CSharp) Method

        public override string ToString()
        {
            try
            {
                // Does a toString method/property exist?
                if (HasProperty("toString") == true)
                {
                    // Call the toString() method.
                    var result = CallMemberFunction("toString");

                    // Make sure we don't recursively loop forever.
                    if (result == this)
                        return "<error>";

                    // Convert to a string.
                    return TypeConverter.ToString(result);
                }
                else
                {
                    // Otherwise, return the type name.
                    var constructor = this["constructor"];
                    if (constructor is FunctionInstance)
                        return string.Format("[{0}]", ((FunctionInstance) constructor).Name);
                    return "<unknown>";
                }
            }
            catch (JavaScriptException)
            {
                return "<error>";
            }
        }

 void Xhr(ObjectInstance href, ObjectInstance type, FunctionInstance callback, FunctionInstance errorCallback)
 {
     var filename = href.ToString();
     var referencingFile = currentFiles.Peek();
     try
     {
         var file = referencingFile.Directory.GetFile(filename);
         var content = file.OpenRead().ReadToEnd();
         callback.Call(Null.Value, content, DateTime.MinValue);
     }
     catch (FileNotFoundException ex)
     {
         throw FileNotFoundExceptionWithSourceFilename(referencingFile, ex);
     }
     catch (DirectoryNotFoundException ex)
     {
         throw DirectoryNotFoundExceptionWithSourceFilename(referencingFile, ex);
     }
 }