Hello. Currently, I'm trying to migrate my app to the composable architecture and I faced a problem with a crash that reproducible only for ios 13. In my SwiftUI view when the user taps on a button it will present a sheet. There a few buttons in this sheet and when tap any on it the app just crashed.
Any help will be appreciated
@Bredox Is there more of a stack trace around the failure? Is it also possible to include a full, compiling project? The gist seems incomplete (it's missing types like UserState, UserAction, etc.)
@stephencelis Unfortunately, I cannot provide the full source code. I've added a UserCore to the gist and here a stack trace of the crash.
Main Thread - Crashed
libswiftCore.dylib
swift_getGenericMetadata
E-TicketsTCA
0x100ddc000 + 16170880
E-TicketsTCA
0x100ddc000 + 16172184
libswiftCore.dylib
static (extension in Swift):Swift.Optional<A where A: Swift.Equatable>.== infix(A?, A?) -> Swift.Bool
E-TicketsTCA
0x100ddc000 + 11446144
E-TicketsTCA
0x100ddc000 + 11446444
libswiftCore.dylib
static (extension in Swift):Swift.Optional<A where A: Swift.Equatable>.== infix(A?, A?) -> Swift.Bool
E-TicketsTCA
0x100ddc000 + 1872680
E-TicketsTCA
0x100ddc000 + 1873068
E-TicketsTCA
0x100ddc000 + 22198676
Combine
reabstraction thunk helper <A><A1 where A: Combine.Publisher, A1: Combine.Subscriber, A.Failure == A1.Failure, A.Output == A1.Input> from @escaping @callee_guaranteed (@in_guaranteed A.Output, @in_guaranteed A.Output) -> (@unowned Swift.Bool) to @escaping @callee_guaranteed (@in_guaranteed A.Output, @in_guaranteed A.Output) -> (@out Swift.Bool)
Combine
Combine.Publishers.RemoveDuplicates.(Inner in _0DC1C469F64165A7EE9727222098AB38).receive(newValue: A.Output) -> Combine.PartialCompletion<A.Output?, A.Failure>
Combine
Combine.FilterProducer.receive(B) -> Combine.Subscribers.Demand
Combine
protocol witness for Combine.Subscriber.receive(A.Input) -> Combine.Subscribers.Demand in conformance Combine.FilterProducer<A, B, C, D, E> : Combine.Subscriber in Combine
Combine
Combine.AnySubscriberBox.receive(A.Input) -> Combine.Subscribers.Demand
Combine
Combine.CurrentValueSubject.Conduit.offer(A) -> ()
Combine
Combine.CurrentValueSubject.send(A) -> ()
Combine
function signature specialization <Arg[0] = Owned To Guaranteed> of Combine.CurrentValueSubject.value.setter : A
Combine
Combine.CurrentValueSubject.value.modify : A with unmangled suffix ".resume.0"
E-TicketsTCA
0x100ddc000 + 21945076
E-TicketsTCA
0x100ddc000 + 21943032
E-TicketsTCA
0x100ddc000 + 21946584
E-TicketsTCA
0x100ddc000 + 21945048
E-TicketsTCA
0x100ddc000 + 21943032
E-TicketsTCA
0x100ddc000 + 21946584
E-TicketsTCA
0x100ddc000 + 21945048
E-TicketsTCA
0x100ddc000 + 21943032
E-TicketsTCA
0x100ddc000 + 21946584
E-TicketsTCA
0x100ddc000 + 21945048
E-TicketsTCA
0x100ddc000 + 21943032
E-TicketsTCA
0x100ddc000 + 21946584
E-TicketsTCA
0x100ddc000 + 21945048
E-TicketsTCA
0x100ddc000 + 21943032
E-TicketsTCA
0x100ddc000 + 21946584
E-TicketsTCA
0x100ddc000 + 21945048
E-TicketsTCA
0x100ddc000 + 21943032
E-TicketsTCA
0x100ddc000 + 21946584
E-TicketsTCA
0x100ddc000 + 21945048
E-TicketsTCA
0x100ddc000 + 22274588
E-TicketsTCA
0x100ddc000 + 22276560
E-TicketsTCA
0x100ddc000 + 17959860
SwiftUI
SwiftUI.PrimitiveButtonStyleConfiguration.trigger() -> ()
SwiftUI
partial apply forwarder for SwiftUI.PrimitiveButtonStyleConfiguration.trigger() -> ()
SwiftUI
closure #1 () -> () in SwiftUI.PressableGestureCallbacks.dispatch(phase: SwiftUI.GesturePhase<A>, state: inout Swift.Bool) -> () -> ()?
SwiftUI
reabstraction thunk helper from @escaping @callee_guaranteed () -> () to @escaping @callee_guaranteed () -> (@out ())
SwiftUI
reabstraction thunk helper from @escaping @callee_guaranteed () -> (@out ()) to @escaping @callee_guaranteed () -> ()
SwiftUI
reabstraction thunk helper from @escaping @callee_guaranteed () -> () to @escaping @callee_guaranteed () -> (@out ())
SwiftUI
static SwiftUI.Update.dispatchActions() -> ()
SwiftUI
static SwiftUI.Update.end() -> ()
SwiftUI
SwiftUI.EventBindingManager.send([SwiftUI.EventID : SwiftUI.EventType]) -> ()
SwiftUI
SwiftUI.UIKitGestureRecognizer.(send in _062C14327F4C9197D92807A7F4DF7F3B)(touches: Swift.Set<__C.UITouch>, event: __C.UIEvent, phase: SwiftUI.EventPhase) -> [SwiftUI.EventID]
SwiftUI
SwiftUI.UIKitGestureRecognizer.touchesEnded(_: Swift.Set<__C.UITouch>, with: __C.UIEvent) -> ()
SwiftUI
merged @objc SwiftUI.UIKitGestureRecognizer.touchesBegan(_: Swift.Set<__C.UITouch>, with: __C.UIEvent) -> ()
UIKitCore
-[UIGestureRecognizer _touchesEnded:withEvent:]
UIKitCore
-[UITouchesEvent _sendEventToGestureRecognizer:]
UIKitCore
-[UIGestureEnvironment _updateForEvent:window:]
UIKitCore
-[UIGestureEnvironment _deliverEvent:toGestureRecognizers:usingBlock:]
UIKitCore
-[UIGestureEnvironment _updateForEvent:window:]
UIKitCore
-[UIWindow sendEvent:]
UIKitCore
-[UIApplication sendEvent:]
UIKitCore
__dispatchPreprocessedEventFromEventQueue
UIKitCore
__handleEventQueueInternal
UIKitCore
__handleHIDEventFetcherDrain
CoreFoundation
__CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__
CoreFoundation
__CFRunLoopDoSource0
CoreFoundation
__CFRunLoopDoSources0
CoreFoundation
__CFRunLoopRun
CoreFoundation
CFRunLoopRunSpecific
GraphicsServices
GSEventRunModal
UIKitCore
UIApplicationMain
libswiftUIKit.dylib
UIKit.UIApplicationMain(Swift.Int32, Swift.UnsafeMutablePointer<Swift.UnsafeMutablePointer<Swift.Int8>>?, Swift.String?, Swift.String?) -> Swift.Int32
E-TicketsTCA
0x100ddc000 + 276660
E-TicketsTCA
0x100ddc000 + 276524
E-TicketsTCA
0x100ddc000 + 286588
libdyld.dylib
start
Today I found that the app crashing only if I build and run it from Xcode. I made a build for testflight install it and there are no crashes.
I solved the issue by adding an ID to my AppState which is the main state of my application
struct AppState: Equatable {
let id = UUID()
var userState: UserState?
var loginState: LoginState?
}