This code works with Typhoon Dependency Injection library (Obj-C) in Swift 2.3 but doesn't in Swift 3:
AppDelegate:
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
var rootViewController: RootViewController?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.
self.window = UIWindow(frame: UIScreen.main.bounds)
self.window?.rootViewController = self.rootViewController
self.window?.makeKeyAndVisible()
return true
}
...
}
Application Assembly:
public class ApplicationAssembly: TyphoonAssembly {
public dynamic func config() -> AnyObject {
return TyphoonDefinition.withConfigName("Configuration.plist")
}
public dynamic func appDelegate() -> AnyObject {
return TyphoonDefinition.withClass(AppDelegate.self) {
(definition) in
definition!.injectProperty(#selector(ApplicationAssembly.rootViewController), with: self.rootViewController())
}
}
...
}
However the following error is displayed in ApplicationAssembly for any Swift 3 file expected to return 'AnyObject': "No 'withClass' candidates produce the expected contextual result type 'AnyObject'
Might anyone have an insight into the incompatibility of the Obj-c Typhoon code base with Swift 3?
You may want to switch the return type from AnyObject
to Any
.
The withClass
function returns an id type in Objective-C, see the source code:
+ (id)withClass:(Class)clazz block:(TyphoonBlockDefinitionInitializerBlock)block;
The id
type used to be mapped to AnyObject
in Swift 2, but in Swift 3 it's mapped to Any
for increased flexibility. You can read more about this change here.