Capable of being represented by an optional wrapped type.
protocol OptionalType : AnyOptionalTypeThis protocol mostly exists to allow constrained extensions on generic types where an associatedtype is an Optional<T>.
import VaporVapor is a framework for building server applications, APIs and websites in Swift. It provides a safe, performant and scalable foundation for building large complex backends.
protocol AnyOptionalTypeType-erased OptionalType
associatedtype WrappedTypeUnderlying wrapped type.
static func makeOptionalType(_ wrapped: WrappedType?) -> Self Creates this optional type from an optional wrapped type.
var wrapped: WrappedType? { get }Returns the wrapped type, if it exists.