ImplicitlyUnwrappedOptional

An optional type that allows implicit member access (via compiler magic).

The compiler has special knowledge of the existence of ImplicitlyUnwrappedOptional<Wrapped>, but always interacts with it using the library intrinsics below.

Inheritance CustomStringConvertible, NilLiteralConvertible, _ObjectiveCBridgeable, _Reflectable View Protocol Hierarchy →
Import
  • import Swift

Cases

Initializers

init()

Construct a nil instance.

Declaration

  • init()
init(_: Wrapped)

Construct a non-nil instance that stores some.

Declaration

  • init(_ some: Wrapped)
init(_: Wrapped?)

Construct an instance from an explicitly unwrapped optional (Wrapped?).

Declaration

  • init(_ v: Wrapped?)
init(nilLiteral:)

Create an instance initialized with nil.

Declaration

  • init(nilLiteral: ())

Instance Variables

var description: String

A textual representation of self.

Declaration

  • var description: String { get }

Instance Methods

func flatMap(_:)

Returns nil if self is nil, f(self!) otherwise.

Declaration

  • func flatMap<U>(@noescape f: (Wrapped) throws -> U!) rethrows -> U!
func map(_:)

If self == nil, returns nil. Otherwise, returns f(self!).

Declaration

  • func map<U>(@noescape f: (Wrapped) throws -> U) rethrows -> U!