Change from IfLetStore to if let produces wrong type of store in observation-beta refactor

[appfrosch]

I am trying to refactor a working 3 panel NavigationSplitView to use the new observation-beta enhancements.
I was able to change everything except the IfLetStore–when I try to refactor that to use the vanilla if let, it produces the wrong type of store.

Here's the diff:

struct AppView: View {
   var body: some View {
     Group {
       NavigationSplitView {
-        IfLetStore(
-          self.store.scope(
-            state: \.$sidepanel,
-            action: \.sidepanel
-          )
-        ) { store in
-          SidepanelView(store: store)
-            .padding()
+        if let sidepanelStore = store.scope(state: \.sidepanel, action: \.sidepanel) {
+          SidepanelView(store: sidepanelStore)
         }
       } content: {
         Group  {
//…

The error message is as follows: Cannot convert value of type 'Store<SidepanelFeature.State, PresentationAction<SidepanelFeature.Action>>' to expected argument type 'StoreOf<SidepanelFeature>' (aka 'Store<SidepanelFeature.State, SidepanelFeature.Action>').

The sidepanel is declared like so: @Presents var sidepanel: SidepanelFeature.State?, the SidepanelView looks like this:

struct SidepanelView: View {
  let store: StoreOf<SidepanelFeature>

  var body: some View {
    Form {
      Button("Load Sample Data") {
        store.send(.delegate(.showSampleDataButtonPressed))
      }
      Spacer()
    }
    .frame(minWidth: 150)
    .padding()
  }
}

What am I missing/doing wrong here?

I created a working sample in this repo–any hints are highly appreciated 😀

[mbrandonw]

Hi @appfrosch, I didn't pull down your code, but does it work if you change the scope to this:

if let sidepanelStore = store.scope(state: \.sidepanel, action: \.sidepanel.presented) {
  …
}

This is necessary because your sidepanel holds onto PresentationAction, and so you have to further dive into the presented case of that.

We should add some documentation on this.

[appfrosch]

Yep, it sure does-thanks a lot.
Amazes me every single time, how responsive and helpful you guys are.

Thanks for an amazing framework (that I still have to grasp the concepts of even better), your wonderful support and your video series (even though more often I'd like to admit it goes over my head...).

Happy holiday season to the both of you!