@swift-5.5.3 -warn-concurrency

@MainActor class ViewController { func viewDidAppear() {} } class XViewController: ViewController { override func viewDidAppear() { } } @MainActor protocol StateProtocol { } class State: StateProtocol { func f() async { let vc = ViewController() let xvc = XViewController() Task { vc.viewDidAppear() xvc.viewDidAppear() } } }

(edited)