ObservedStorePath

ObservedStorePath.swift

@propertyWrapper
struct ObservedStorePath<Value: Equatable>: DynamicProperty {
    @ObservedObject private var observableFilter: ObservableStoreFilter<Value>

    var wrappedValue: Value {
        get {
            observableFilter.value
        }
        nonmutating set {
            observableFilter.value = newValue
        }
    }
    
    var projectedValue: Binding<Value> {
        $observableFilter.value
    }
    
    init(_ filterPath: WritableKeyPath<AppState, Value>) {
        self._observableFilter = ObservedObject<ObservableStoreFilter<Value>>(initialValue: ObservableStoreFilter(filterPath))
    }
}

struct TickerView: View {
    @ObservedStorePath(\.ticker) var ticker
    
    var body: some View {
        Form {
            Text("\(ticker)")
        }
    }
}