Inject Only

There're some cases when you want to create a service manually or barely don't control its creation (e.g. you use Storyboards).

All you need is to annotate your service with @saber.injectOnly and invoke the generated injector manually.

Example

Declare a container:

// @saber.container(AppContainer)
// @saber.scope(App)
protocol AppContaining {}

Create a very simple service:

// @saber.scope(App)
// @saber.cached
class UserManager {
    
    var currentUserName: String {
        return "Steve"
    }
}

Then annotate your ViewController, so Saber will generate an exposed injector to invoke manually:

// @saber.scope(App)
// @saber.injectOnly
class ViewController: UIViewController {

    // @saber.inject
    var userManager: UserManager!
}

Run Saber to generate the AppContainer and expose it somewhere in your code, e.g. in AppDelegate.swift:

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    let appContainer = AppContainer() // HERE!

    // ...
}

Now we can use the generated injector:

// @saber.scope(App)
// @saber.injectOnly
class ViewController: UIViewController {

    // @saber.inject
    var userManager: UserManager!

    override func awakeFromNib() {
        super.awakeFromNib()
        
        let appContainer = (UIApplication.shared.delegate as! AppDelegate).appContainer
        appContainer.injectTo(viewController: self) // HERE!

        print(userManager.currentUserName) // Steve
    }
}