[Pitch (back from revision)] Clock, Instant, and Duration

[sveinhal (Svein Halvor Halvorsen)]

@ktraunmueller

I would have expected something more like

public protocol InstantProtocol: Comparable, Hashable, Sendable {
  associatedtype Duration: DurationProtocol
  func advanced(by duration: Duration) -> Self
  func duration(to other: Self) -> Duration
}

Edit: oh, I see, this would clash with struct Duration .

Would it, thought? Couldn't some clock's Instant just declare public typealias Duration = Swift.Duration?

I can't see a lot of examples of when this would clash in practice, and the somewhat extranous Swift. prefix would be constrained to that single type alias declaration, which is a very small burden on library authors, which wouldn't surface to end user.

Or am I missing something?