| //===----------------------------------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| |
| /// An optional type that allows implicit member access. |
| /// |
| /// The `ImplicitlyUnwrappedOptional` type is deprecated. To create an optional |
| /// value that is implicitly unwrapped, place an exclamation mark (`!`) after |
| /// the type that you want to denote as optional. |
| /// |
| /// // An implicitly unwrapped optional integer |
| /// let guaranteedNumber: Int! = 6 |
| /// |
| /// // An optional integer |
| /// let possibleNumber: Int? = 5 |
| @available(*, unavailable, renamed: "Optional") |
| public typealias ImplicitlyUnwrappedOptional<Wrapped> = Optional<Wrapped> |
