Initializers that return nil

[radex]

https://devforums.apple.com/message/1028133#1028133

anyone wants to write up? ;)

[ksm]

Added in db730ce.

@radex Please check if what I wrote makes sense.

[radex]

It does, but I'd clarify a bit. The point is that Swift initializers cannot return an optional type — yet imported initialisers from Objective-C classes might return nil.

I'd also mention the workaround — you can cheat the type checking system if you assign the returned (supposedly non-optional value) to an optional variable.

[ksm]

Perfect. Added that in.