Hi everyone, hope you are all doing well. I am int...

# flow

[Djuro]

Hi everyone, hope you are all doing well.
I am interested in how you manage states when using StateFlow.
For example, I would usually have a state and something like the following

sealed class MyState{
   data class Success(
        val intList: List<Int>
        ....
   ) : MyState()
   data class Success2(
        ....
   ) : MyState()
}

Now when updating my state using update

myState.update{ currentState ->
   if(currentState is MyState.Success){
      currentState.copy(intList = newIntList())
   } else currentState
} 

fun newIntList(): List<Int> {...}

Is there some approach you take to avoid this if/else branching? I always hated it but didn't figure out yet how to get rid of it.
Do you have some suggestions?

for example, I can make a function myState.updateIf<MyState, MyState.Success>{ mySuccessState -> ... } but I am unsure if there is some other better approach

[Djuro]

Note: this is a function I use for now

inline fun <T, reified Subtype : T> MutableStateFlow<T>.updateIf(function: (Subtype) -> T) {
    update { currentState ->
        if (currentState is Subtype) {
            function(currentState)
        } else currentState
    }
}