internal abstract XmlSchemaDatatype DeriveByList(XmlSchemaType schemaType);
internal static XmlSchemaDatatype DeriveByUnion(XmlSchemaSimpleType[] types, XmlSchemaType schemaType) { return(DatatypeImplementation.DeriveByUnion(types, schemaType)); }
internal abstract XmlSchemaDatatype DeriveByRestriction(XmlSchemaObjectCollection facets, XmlNameTable nameTable, XmlSchemaType schemaType);