Automatic injection with protocols about objection HOT 1 CLOSED

No, there isn't a way to do that. The reason for this is that Objection, at runtime, determines the property type and from there can lookup what type of object needs to be fetched from the injector context.

Without any type information we'd have to fall back on conventional methods that other dynamic languages use (e.g. the property name 'loginService' is mapped to "LoginService" followed by looking up the class by that name). Objective-C does have a bit of an identity crisis with regard to typing -- since dynamic typing can be used. But I want to keep Objection consistent in how it looks up types.

What you could do is define the property with the implementing protocol: id<ILoginService> loginService

from objection.