How to represent Core Data optional Scalars (Bool/Int/Double/Float) in Swift?

Question

(first noticed on: Xcode 8.2.1, iOS 10, Swift 3) (still present as of: Xcode 9 beta 3, iOS11, Swift 4)

We all know that the Core Data concept of o

Answer 1

If you end up here with this:

@NSManaged var boolAttribute: Bool

and it is not being seen in Objective-C, and you have already disabled "Optional" and enabled "Use Scalar Type" on those attributes, then do yourself a favour.

Double check you have imported your Swift bridging header into that Objective-C file.

I did not and, well, I was most of the way to changing my Bools to NSNumbers before smacking my head and realising how foolish I had been.