System.Xml.Serialization.XmlReflectionImporter.GetMappingName C# (CSharp) Method

        private static string GetMappingName(Mapping mapping)
        {
            if (mapping is MembersMapping)
                return "(method)";
            else if (mapping is TypeMapping)
                return ((TypeMapping)mapping).TypeDesc.FullName;
            else
                throw new ArgumentException(SR.XmlInternalError, nameof(mapping));
        }