I try to create a List from an array containing types which are conforming to a protocol.
I can map and downcast the types in .onAppear, but I can’t use the array as a source for the List and do the downcast to create text views.

Compiler message is

‘Type ‘any IRow’ cannot conform to ‘Identifiable’’

If I use id like this

List(item.rows, id: .self)

the compiler message is about

‘cannot conform to ‘Hashable’

protocol IRow: Identifiable, Hashable {
    var id: UUID { get }
    var rowType: String { get }
}

struct TextItemRow: IRow {
    let id = UUID()
    let rowType = "text"
    
    var text: String = ""
}

struct HeadlineItemRow: IRow {
    let id = UUID()
    let rowType = "headline"
    
    var text: String = ""
}

struct Item: Identifiable {
    let id = UUID()
    var rows: [any IRow] = [HeadlineItemRow(text: "H_mock"), TextItemRow(text: "T_mock")]
}

struct ContentView: View {
    let item = Item()
    
    var body: some View {
        VStack {
            List(item.rows) { row in
                
            }
        }
        .onAppear {
            var _ = item.rows.map() {
                if let r = $0 as? HeadlineItemRow {
                    print("(r.id.uuidString) : (r.text)")
                } else if let r = $0 as? TextItemRow {
                    print("(r.id.uuidString) : (r.text)")
                }
            }
        }
    }
}