How to use Dependency clock with swift-async-algorithms

[fatbobman]

I want to use swift-async-algorithms in Reducer to make some adjustments to async sequences.
However, the default clock Key provided by Dependency cannot be used directly in the method, prompt: Type 'any Clock<Duration>' cannot conform to 'Clock'

Excuse me, how to combine the two together?

 @Dependency(\.continuousClock)
 var clock

// Type 'any Clock<Duration>' cannot conform to 'Clock'
for await objects in await fetcher().stream.debounce(for: .seconds(0.3), clock: clock) {
        send(.objectsUpdateResponse(.values(objects)))
 }

[mbrandonw]

Huh, I thought this would have worked, but sadly it seems that Swift's existentials are not powerful enough for this. This is a pretty big bummer.

I think the only way to work around is to use the _AnyClock that ships with swift-clocks:

for await objects in await fetcher().stream.debounce(for: .seconds(0.3), clock: _AnyClock(clock)) {
  …
}

We thought we could keep _AnyClock as an internal detail but maybe we need to publicize it. And maybe @Dependency(\.continuousClock) needs to be an AnyClock instead of an any Clock.

[fatbobman]

Thanks a lot, after using clock: _AnyClock(self.clock) the code compiles.

[stephencelis]

@fatbobman We decided to make this type more publicly usable: pointfreeco/swift-clocks#11

You'll want to be aware of this when you upgrade in the future, as you'll want to rename _AnyClock to AnyClock.

[fatbobman]

Thanks!! Really good news