System.Xml.Serialization.XmlSchemaImporter.ImportElement C# (CSharp) Method

        private ElementAccessor ImportElement(XmlSchemaElement element, string identifier, Type desiredMappingType, Type baseType, string ns, bool topLevelElement)
        {
            if (!element.RefName.IsEmpty)
            {
                // we cannot re-use the accessor for the element refs
                ElementAccessor topAccessor = ImportElement(element.RefName, desiredMappingType, baseType);
                if (element.IsMultipleOccurrence && topAccessor.Mapping is ArrayMapping)
                {
                    ElementAccessor refAccessor = topAccessor.Clone();
                    refAccessor.IsTopLevelInSchema = false;
                    refAccessor.Mapping.ReferencedByElement = true;
                    return refAccessor;
                }
                return topAccessor;
            }

            if (element.Name.Length == 0)
            {
                XmlQualifiedName parentType = XmlSchemas.GetParentName(element);
                throw new InvalidOperationException(SR.Format(SR.XmlElementHasNoName, parentType.Name, parentType.Namespace));
            }
            string unescapedName = Accessor.UnescapeName(element.Name);
            if (identifier.Length == 0)
                identifier = CodeIdentifier.MakeValid(unescapedName);
            else
                identifier += CodeIdentifier.MakePascal(unescapedName);
            TypeMapping mapping = ImportElementType(element, identifier, desiredMappingType, baseType, ns);
            ElementAccessor accessor = new ElementAccessor();
            accessor.IsTopLevelInSchema = element.Parent is XmlSchema;
            accessor.Name = element.Name;
            accessor.Namespace = ns;
            accessor.Mapping = mapping;
            accessor.IsOptional = element.MinOccurs == 0m;

            if (element.DefaultValue != null)
            {
                accessor.Default = element.DefaultValue;
            }
            else if (element.FixedValue != null)
            {
                accessor.Default = element.FixedValue;
                accessor.IsFixed = true;
            }

            if (mapping is SpecialMapping && ((SpecialMapping)mapping).NamedAny)
                accessor.Any = true;
            accessor.IsNullable = element.IsNillable;
            if (topLevelElement)
            {
                accessor.Form = XmlSchemaForm.Qualified;
            }
            else
            {
                accessor.Form = ElementForm(ns, element);
            }
            return accessor;
        }