Could not cast value of type '' to 'SharedKotlinx_coroutines_coreFlowCollector'

[Benoye]

Hi,

I am trying to implement a very simple State in my KMM project and I run into an exception. I don't know if I am doing things correctly, here are some details.

versions

• kotlin : 1.5.30
• flywheel : 1.1.4-RC
• kotlinxCoroutines : 1.5.2-native-mt

use case

I would like to State defined in the shared kotlin code base and I would like to collect this State in my Swift view model.

On Kotlin side

• I made an State and corresponding Actions in shared (my state has a boolean value modified by the actions)
• I have SDK kotlin class where I have put a Reducer and a StateReserve

Now on Swift side :

• I have imported flywheel framework and the CoroutinesHelper.swift file
• I have defined the following state in a ViewModel :

final class MyViewModel: ObservableObject {
    let sdk: MySDK

    @Published var myState: MyState = MyState(myBoolean = false)

    init() {
        sdk = MySDK()
        sdk.myStateReserve.states.collect(collector: Collector<MyState> { myState in
            self.myState = myState
        } as! Kotlinx_coroutines_coreFlowCollector) { (unit, error) in
            // code executed if the Flow object is completed
        }
    }

    ..
}

what is happening

So the first thing different from the sample code you provided is that I am forced to cast Collector<MyState> to Kotlinx_coroutines_coreFlowCollector

And surely the problem is here as the Exception is the following, calling init():

Could not cast value of type '_TtGC6iosApp9CollectorCSo18SharedMyState_' (0x11046c4d0) to 'SharedKotlinx_coroutines_coreFlowCollector' (0x10218ae48).

Am I doing the most simple thing to collect a state in Swift ? If not I am interested to know how I can improve my code ! Thank you so much !

(BTW wiki documentation is great !)

[abhimuktheeswarar]

Could you please share the Xcode version & swift version?