Self-type mismatch in Scala?
Found it: of course, the parameters T in the generic types are different. So I should have written instead case class SensorViewPresenterT extends ViewPresenterPair { type V = SensorView type P = SensorPresenter trait SensorView extends View { } class SensorViewImpl(val presenter: P) extends SensorView { presenter. View = this } class SensorPresenter extends Presenter { var view: V } }.
Controller action does not compile with “type mismatch found : Unit required: play.api.mvc. Found: Unit required: Int - How to correct this? What is the difference between () => Int and Unit => Int?
What on earth is the type of “()” in Scala? Found Unit: required Int. Why is the error not obvious?
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.
Related Questions
Scala generics and type mismatch?
Scala: Error type mismatch?
Scala ActionListener / anonymous function type mismatch?
Self.tableView.delegate = self and self.table.dataSource = self memory leak?
Is there a “SELF” type in scala that represents the current type?
Understanding the interaction in Scala between self-types and type bounds?