Is there a way to infer that the class implementing an abstract class is the caller of a lambda with receiver ``` abstract class AbstractFoo lt T gt operator fun invoke action T gt Unit action lt error here No value passed for parameter p1 ```

You don t have an instance of type `T` ``` abstract class AbstractFoo lt T gt operator fun invoke action T gt Unit val t T = t action ```

Yeah I realized that just a few minutes after I posted man facepalming

Is there a way to infer that the class implementing an abstr kotlinlang #announcements

04/30/2019, 2:45 PM

Is there a way to infer that the class implementing an abstract class is the caller of a lambda with receiver?

abstract class AbstractFoo<T> {
  operator fun invoke(action: T.() ->Unit) {
    action() // <-- error here: No value passed for parameter 'p1'
  }
}

streetsofboston

04/30/2019, 2:56 PM

You don’t have an instance of type

abstract class AbstractFoo<T> {
  operator fun invoke(action: T.() ->Unit) {
    val t : T = ... ... ...  ...
    t.action() 
  }
}

04/30/2019, 3:21 PM

Yeah, I realized that just a few minutes after I posted. 🤦‍♂️