Question

I’m writing a ScalaTest JMock expectation. The syntax is usually

expecting { e => import e._
  // call methods on e
}

Now I happen to know that e is a subclass of Expectation. I can write

expecting { e => 
  val e2 = e.asInstanceOf[MySubclass]
  import e2._
  // call MySubclass methods
}

but I can’t find any way of making a one-liner like

expecting { e => import (e.asInstanceOf[MySubclass])._
  // call MySubclass methods
}

compile.

Is there anyway to combine down-casting and importing in a single step?

Answer 1

I don´t see a way to combine both, but I would rather implement it like this:

expecting { case e: MySubclass => import e._
  ...
}