This could cause problems when the underlying type also has a `map` or
`flatMap` function:
let array: [Int]! = nil
array.map { $0 } // crash
Should this use Optional.map or Array.map?
As a workaround, you can simply do
let array: [Int]! = nil
(array as Optional).map { $0 } // nil
> Since `ImplicitlyUnwrappedOptional` types can be unwrapped with an `if let` or
> accessed as an optional as in `foo?.bar` then why shouldn't there be
> implementations of `map` or `flatMap` for use with IUO types?
>
> I think having `map` and `flatMap` available on types marked with "!" would
> be convenient
> but is there a good reason why that isn't the case now?
>
>
>
>
> _______________________________________________
swift-evolution mailing list
[email protected]
https://lists.swift.org/mailman/listinfo/swift-evolution
