How to present a View without a Reducer in TCA

[tobitech]

Hello, I don't know if this has been answered before but how can I derive a Binding from a Store to use for navigation without scoping the store cause I want to present a View without a Reducer.

Assuming I have a Destination Reducer in my feature:

@Reducer
enum Destination {
    case addContact(AddContactFeature)
    case alert(AlertState<ContactsFeature.Action.Alert>)
    case docs
    case archive
}

I want to be able to derive a binding I can use to present views for the docs and archive destinations using the .sheet(item:) modifier.

The lines of code below using the sheet modifier don't compile.

@Perception.Bindable var store: StoreOf<ContactsFeature>
// ...
.sheet(item: $store) { _ in Text("Your Documents") }
.sheet(item: $store) { _ in Text("Your Archive") }

[mbrandonw]

Hi @tobitech, you can use the .scope operation on $store to derive a binding, just as you would for cases that house TCA features:

.sheet(item: $scope(state: \.destination?.docs, action: \.destination.docs) { _ in 
  Text("Your documents")
}
.sheet(item: $scope(state: \.destination?.archive, action: \.destination.archive) { _ in 
  Text("Your archive")
}

[mbrandonw]

Actually, this isn't quite true. I think we need to update @Reducer on enums to provide a case docs(Never) to the action. We will look into doing that soon, and then this will be a lot easier.

[tobitech]

Yeah, I tried that. Looking forward to the updates. Thanks

[stephencelis]

@tobitech Pushed a PR here if you want to take the branch for a test drive: #2943