Update protocol usage to include 'any' keyword

ios/MullvadVPN.xcodeproj/project.pbxproj

@@ -6480,6 +6480,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				OTHER_SWIFT_FLAGS = "-enable-upcoming-feature ExistentialAny";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(APPLICATION_IDENTIFIER)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -6501,6 +6502,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				OTHER_SWIFT_FLAGS = "-enable-upcoming-feature ExistentialAny";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(APPLICATION_IDENTIFIER)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_VERSION = 5.0;
@@ -7148,6 +7150,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				OTHER_SWIFT_FLAGS = "-enable-upcoming-feature ExistentialAny";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(APPLICATION_IDENTIFIER)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = "Mullvad VPN Development";
@@ -7761,6 +7764,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
+				OTHER_SWIFT_FLAGS = "-enable-upcoming-feature ExistentialAny";
 				PRODUCT_BUNDLE_IDENTIFIER = "$(APPLICATION_IDENTIFIER)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				"PROVISIONING_PROFILE_SPECIFIER[sdk=iphoneos*]" = "Mullvad VPN Development";

ios/MullvadVPN/AccessMethodRepository/ProxyConfigurationTester.swift

@@ -14,15 +14,15 @@ import MullvadTypes
 
 /// A concrete implementation of an access method proxy configuration.
 class ProxyConfigurationTester: ProxyConfigurationTesterProtocol {
-    private var cancellable: MullvadTypes.Cancellable?
+    private var cancellable: (any MullvadTypes.Cancellable)?
     private let transportProvider: ProxyConfigurationTransportProvider
     private var headRequest: REST.APIAvailabilityTestRequest?
 
     init(transportProvider: ProxyConfigurationTransportProvider) {
         self.transportProvider = transportProvider
     }
 
-    func start(configuration: PersistentProxyConfiguration, completion: @escaping (Error?) -> Void) {
+    func start(configuration: PersistentProxyConfiguration, completion: @escaping ((any Error)?) -> Void) {
         do {
             let transport = try transportProvider.makeTransport(with: configuration)
             let request = REST.APIAvailabilityTestRequest(transport: transport)

ios/MullvadVPN/AccessMethodRepository/ProxyConfigurationTesterProtocol.swift

@@ -15,7 +15,7 @@ protocol ProxyConfigurationTesterProtocol {
     /// - Parameters:
     ///   - configuration: a proxy configuration.
     ///   - completion: a completion handler that receives `nil` upon success, otherwise the underlying error.
-    func start(configuration: PersistentProxyConfiguration, completion: @escaping (Error?) -> Void)
+    func start(configuration: PersistentProxyConfiguration, completion: @escaping ((any Error)?) -> Void)
 
     /// Cancel testing proxy configuration.
     func cancel()

ios/MullvadVPN/AddressCacheTracker/AddressCacheTracker.swift

@@ -24,7 +24,7 @@ final class AddressCacheTracker {
     private let application: UIApplication
 
     /// REST API proxy.
-    private let apiProxy: APIQuerying
+    private let apiProxy: any APIQuerying
 
     /// Address cache.
     private let store: REST.AddressCache
@@ -36,7 +36,7 @@ final class AddressCacheTracker {
     private var lastFailureAttemptDate: Date?
 
     /// Timer used for scheduling periodic updates.
-    private var timer: DispatchSourceTimer?
+    private var timer: (any DispatchSourceTimer)?
 
     /// Operation queue.
     private let operationQueue = AsyncOperationQueue.makeSerial()
@@ -45,7 +45,7 @@ final class AddressCacheTracker {
     private let nslock = NSLock()
 
     /// Designated initializer
-    init(application: UIApplication, apiProxy: APIQuerying, store: REST.AddressCache) {
+    init(application: UIApplication, apiProxy: any APIQuerying, store: REST.AddressCache) {
         self.application = application
         self.apiProxy = apiProxy
         self.store = store
@@ -84,8 +84,8 @@ final class AddressCacheTracker {
         timer = nil
     }
 
-    func updateEndpoints(completionHandler: ((Result<Bool, Error>) -> Void)? = nil) -> Cancellable {
-        let operation = ResultBlockOperation<Bool> { finish -> Cancellable in
+    func updateEndpoints(completionHandler: ((Result<Bool, any Error>) -> Void)? = nil) -> any Cancellable {
+        let operation = ResultBlockOperation<Bool> { finish -> any Cancellable in
             guard self.nextScheduleDate() <= Date() else {
                 finish(.success(false))
                 return AnyCancellable()
@@ -121,7 +121,7 @@ final class AddressCacheTracker {
         return _nextScheduleDate()
     }
 
-    private func setEndpoints(from result: Result<[AnyIPEndpoint], Error>) {
+    private func setEndpoints(from result: Result<[AnyIPEndpoint], any Error>) {
         nslock.lock()
         defer { nslock.unlock() }
 

ios/MullvadVPN/AppDelegate.swift

@@ -31,9 +31,9 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
     private(set) var addressCache: REST.AddressCache!
 
     private var proxyFactory: REST.ProxyFactory!
-    private(set) var apiProxy: APIQuerying!
-    private(set) var accountsProxy: RESTAccountHandling!
-    private(set) var devicesProxy: DeviceHandling!
+    private(set) var apiProxy: (any APIQuerying)!
+    private(set) var accountsProxy: (any RESTAccountHandling)!
+    private(set) var devicesProxy: (any DeviceHandling)!
 
     private(set) var addressCacheTracker: AddressCacheTracker!
     private(set) var relayCacheTracker: RelayCacheTracker!
@@ -43,7 +43,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
     private let migrationManager = MigrationManager()
 
     private(set) var accessMethodRepository = AccessMethodRepository()
-    private(set) var shadowsocksLoader: ShadowsocksLoaderProtocol!
+    private(set) var shadowsocksLoader: (any ShadowsocksLoaderProtocol)!
     private(set) var configuredTransportProvider: ProxyConfigurationTransportProvider!
     private(set) var ipOverrideRepository = IPOverrideRepository()
 
@@ -450,7 +450,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterD
 
                     case let .failure(error):
                         let migrationUIHandler = application.connectedScenes
-                            .first { $0 is SettingsMigrationUIHandler } as? SettingsMigrationUIHandler
+                            .first { $0 is (any SettingsMigrationUIHandler) } as? any SettingsMigrationUIHandler
 
                         if let migrationUIHandler {
                             migrationUIHandler.showMigrationError(error) {

ios/MullvadVPN/Classes/AutomaticKeyboardResponder.swift

@@ -80,7 +80,7 @@ class AutomaticKeyboardResponder {
             let fromCoordinateSpace = screen.coordinateSpace
 
             // Get your view's coordinate space.
-            let toCoordinateSpace: UICoordinateSpace = targetView
+            let toCoordinateSpace: any UICoordinateSpace = targetView
 
             // Convert the keyboard's frame from the screen's coordinate space to your view's coordinate space.
             let convertedKeyboardFrameEnd = fromCoordinateSpace.convert(keyboardFrameEnd, to: toCoordinateSpace)

ios/MullvadVPN/Classes/InputTextFormatter.swift

@@ -186,7 +186,7 @@ class InputTextFormatter: NSObject, UITextFieldDelegate, UITextPasteDelegate {
     // MARK: - UITextPasteDelegate
 
     func textPasteConfigurationSupporting(
-        _ textPasteConfigurationSupporting: UITextPasteConfigurationSupporting,
+        _ textPasteConfigurationSupporting: any UITextPasteConfigurationSupporting,
         performPasteOf attributedString: NSAttributedString,
         to textRange: UITextRange
     ) -> UITextRange {

ios/MullvadVPN/Containers/CustomSplitViewController.swift

@@ -10,14 +10,14 @@ import UIKit
 
 class CustomSplitViewController: UISplitViewController, RootContainment {
     var preferredHeaderBarPresentation: HeaderBarPresentation {
-        for case let viewController as RootContainment in viewControllers {
+        for case let viewController as any RootContainment in viewControllers {
             return viewController.preferredHeaderBarPresentation
         }
         return .default
     }
 
     var prefersHeaderBarHidden: Bool {
-        for case let viewController as RootContainment in viewControllers {
+        for case let viewController as any RootContainment in viewControllers {
             return viewController.prefersHeaderBarHidden
         }
         return false

ios/MullvadVPN/Containers/Root/RootContainerViewController.swift

@@ -115,7 +115,7 @@ class RootContainerViewController: UIViewController {
         viewControllers.last
     }
 
-    weak var delegate: RootContainerViewControllerDelegate?
+    weak var delegate: (any RootContainerViewControllerDelegate)?
 
     override var childForStatusBarStyle: UIViewController? {
         topViewController
@@ -487,7 +487,7 @@ class RootContainerViewController: UIViewController {
         let viewControllersToRemove = viewControllers.filter { !newViewControllers.contains($0) }
 
         // hide in-App notificationBanner when the container decides to keep it invisible
-        isNavigationBarHidden = (targetViewController as? RootContainment)?.prefersNotificationBarHidden ?? false
+        isNavigationBarHidden = (targetViewController as? any RootContainment)?.prefersNotificationBarHidden ?? false
 
         configureViewControllers(
             viewControllersToAdd: viewControllersToAdd,
@@ -741,20 +741,20 @@ class RootContainerViewController: UIViewController {
     }
 
     private func updateHeaderBarStyleFromChildPreferences(animated: Bool) {
-        if let conforming = topViewController as? RootContainment {
+        if let conforming = topViewController as? any RootContainment {
             setHeaderBarPresentation(conforming.preferredHeaderBarPresentation, animated: animated)
         }
     }
 
     private func updateDeviceInfoBarHiddenFromChildPreferences() {
-        if let conforming = topViewController as? RootContainment {
+        if let conforming = topViewController as? any RootContainment {
             headerBarView.isDeviceInfoHidden = conforming.prefersDeviceInfoBarHidden
         }
     }
 
     private func updateNotificationBarHiddenFromChildPreferences() {
         if let notificationController,
-           let conforming = topViewController as? RootContainment {
+           let conforming = topViewController as? any RootContainment {
             if conforming.prefersNotificationBarHidden {
                 removeNotificationController(notificationController)
             } else {
@@ -766,7 +766,7 @@ class RootContainerViewController: UIViewController {
     private func updateHeaderBarHiddenFromChildPreferences(animated: Bool) {
         guard overrideHeaderBarHidden == nil else { return }
 
-        if let conforming = topViewController as? RootContainment {
+        if let conforming = topViewController as? any RootContainment {
             setHeaderBarHidden(conforming.prefersHeaderBarHidden, animated: animated)
         }
     }

ios/MullvadVPN/Coordinators/ApplicationCoordinator.swift

@@ -71,13 +71,13 @@ final class ApplicationCoordinator: Coordinator, Presenting, RootContainerViewCo
     private let storePaymentManager: StorePaymentManager
     private let relayCacheTracker: RelayCacheTracker
 
-    private let apiProxy: APIQuerying
-    private let devicesProxy: DeviceHandling
-    private let accountsProxy: RESTAccountHandling
-    private var tunnelObserver: TunnelObserver?
-    private var appPreferences: AppPreferencesDataSource
-    private var outgoingConnectionService: OutgoingConnectionServiceHandling
-    private var accessMethodRepository: AccessMethodRepositoryProtocol
+    private let apiProxy: any APIQuerying
+    private let devicesProxy: any DeviceHandling
+    private let accountsProxy: any RESTAccountHandling
+    private var tunnelObserver: (any TunnelObserver)?
+    private var appPreferences: any AppPreferencesDataSource
+    private var outgoingConnectionService: any OutgoingConnectionServiceHandling
+    private var accessMethodRepository: any AccessMethodRepositoryProtocol
     private let configuredTransportProvider: ProxyConfigurationTransportProvider
     private let ipOverrideRepository: IPOverrideRepository
 
@@ -91,12 +91,12 @@ final class ApplicationCoordinator: Coordinator, Presenting, RootContainerViewCo
         tunnelManager: TunnelManager,
         storePaymentManager: StorePaymentManager,
         relayCacheTracker: RelayCacheTracker,
-        apiProxy: APIQuerying,
-        devicesProxy: DeviceHandling,
-        accountsProxy: RESTAccountHandling,
-        outgoingConnectionService: OutgoingConnectionServiceHandling,
-        appPreferences: AppPreferencesDataSource,
-        accessMethodRepository: AccessMethodRepositoryProtocol,
+        apiProxy: any APIQuerying,
+        devicesProxy: any DeviceHandling,
+        accountsProxy: any RESTAccountHandling,
+        outgoingConnectionService: any OutgoingConnectionServiceHandling,
+        appPreferences: any AppPreferencesDataSource,
+        accessMethodRepository: any AccessMethodRepositoryProtocol,
         transportProvider: ProxyConfigurationTransportProvider,
         ipOverrideRepository: IPOverrideRepository
 
@@ -193,7 +193,7 @@ final class ApplicationCoordinator: Coordinator, Presenting, RootContainerViewCo
                 context.dismissedRoutes.forEach { $0.coordinator.removeFromParent() }
 
             case .selectLocation, .account, .settings, .changelog, .alert:
-                guard let coordinator = dismissedRoute.coordinator as? Presentable else {
+                guard let coordinator = dismissedRoute.coordinator as? any Presentable else {
                     completion()
                     return assertionFailure("Expected presentable coordinator for \(dismissedRoute.route)")
                 }
@@ -205,7 +205,7 @@ final class ApplicationCoordinator: Coordinator, Presenting, RootContainerViewCo
 
             switch dismissedRoute.route {
             case .outOfTime, .welcome:
-                guard let coordinator = dismissedRoute.coordinator as? Poppable else {
+                guard let coordinator = dismissedRoute.coordinator as? any Poppable else {
                     completion()
                     return assertionFailure("Expected presentable coordinator for \(dismissedRoute.route)")
                 }

ios/MullvadVPN/Coordinators/CustomLists/AddCustomListCoordinator.swift

@@ -13,7 +13,7 @@ import UIKit
 
 class AddCustomListCoordinator: Coordinator, Presentable, Presenting {
     let navigationController: UINavigationController
-    let interactor: CustomListInteractorProtocol
+    let interactor: any CustomListInteractorProtocol
     let nodes: [LocationNode]
     let subject = CurrentValueSubject<CustomListViewModel, Never>(
         CustomListViewModel(id: UUID(), name: "", locations: [], tableSections: [.name, .addLocations])
@@ -27,7 +27,7 @@ class AddCustomListCoordinator: Coordinator, Presentable, Presenting {
 
     init(
         navigationController: UINavigationController,
-        interactor: CustomListInteractorProtocol,
+        interactor: any CustomListInteractorProtocol,
         nodes: [LocationNode]
     ) {
         self.navigationController = navigationController

ios/MullvadVPN/Coordinators/CustomLists/AddLocationsViewController.swift

@@ -20,7 +20,7 @@ class AddLocationsViewController: UIViewController {
     private let nodes: [LocationNode]
     private let customList: CustomList
 
-    weak var delegate: AddLocationsViewControllerDelegate?
+    weak var delegate: (any AddLocationsViewControllerDelegate)?
     private let tableView: UITableView = {
         let tableView = UITableView()
         tableView.separatorColor = .secondaryColor

ios/MullvadVPN/Coordinators/CustomLists/CustomListCellConfiguration.swift

@@ -47,7 +47,7 @@ struct CustomListCellConfiguration {
             contentValidationErrors: validationErrors
         )
 
-        guard let cell = cell as? DynamicBackgroundConfiguration else { return }
+        guard let cell = cell as? any DynamicBackgroundConfiguration else { return }
 
         cell.setAutoAdaptingBackgroundConfiguration(.mullvadListGroupedCell(), selectionType: .dimmed)
     }
@@ -86,7 +86,7 @@ struct CustomListCellConfiguration {
         contentConfiguration.text = itemIdentifier.text
         cell.contentConfiguration = contentConfiguration
 
-        if let cell = cell as? CustomCellDisclosureHandling {
+        if let cell = cell as? any CustomCellDisclosureHandling {
             cell.disclosureType = .chevron
         }
     }

ios/MullvadVPN/Coordinators/CustomLists/CustomListInteractor.swift

@@ -15,7 +15,7 @@ protocol CustomListInteractorProtocol {
 }
 
 struct CustomListInteractor: CustomListInteractorProtocol {
-    let repository: CustomListRepositoryProtocol
+    let repository: any CustomListRepositoryProtocol
 
     func fetchAll() -> [CustomList] {
         repository.fetchAll()

ios/MullvadVPN/Coordinators/CustomLists/CustomListViewController.swift

@@ -19,7 +19,7 @@ protocol CustomListViewControllerDelegate: AnyObject {
 class CustomListViewController: UIViewController {
     typealias DataSource = UITableViewDiffableDataSource<CustomListSectionIdentifier, CustomListItemIdentifier>
 
-    private let interactor: CustomListInteractorProtocol
+    private let interactor: any CustomListInteractorProtocol
     private let tableView = UITableView(frame: .zero, style: .insetGrouped)
     private let subject: CurrentValueSubject<CustomListViewModel, Never>
     private var cancellables = Set<AnyCancellable>()
@@ -54,10 +54,10 @@ class CustomListViewController: UIViewController {
         return barButtonItem
     }()
 
-    weak var delegate: CustomListViewControllerDelegate?
+    weak var delegate: (any CustomListViewControllerDelegate)?
 
     init(
-        interactor: CustomListInteractorProtocol,
+        interactor: any CustomListInteractorProtocol,
         subject: CurrentValueSubject<CustomListViewModel, Never>,
         alertPresenter: AlertPresenter
     ) {

ios/MullvadVPN/Coordinators/CustomLists/EditCustomListCoordinator.swift

@@ -17,7 +17,7 @@ class EditCustomListCoordinator: Coordinator, Presentable, Presenting {
     }
 
     let navigationController: UINavigationController
-    let customListInteractor: CustomListInteractorProtocol
+    let customListInteractor: any CustomListInteractorProtocol
     let customList: CustomList
     let nodes: [LocationNode]
     let subject: CurrentValueSubject<CustomListViewModel, Never>
@@ -30,7 +30,7 @@ class EditCustomListCoordinator: Coordinator, Presentable, Presenting {
 
     init(
         navigationController: UINavigationController,
-        customListInteractor: CustomListInteractorProtocol,
+        customListInteractor: any CustomListInteractorProtocol,
         customList: CustomList,
         nodes: [LocationNode]
     ) {