[Solved]-Do I need to import members of a singleton object into its companion class in Scala?-scala

Yes, you do, just as you state. There's access, and there's scope -- what companion class/objects have is access, not scope.

It's like declaring something public vs private -- it doesn't bring those members into everyone's scope, just give them access to it.

Daniel C. Sobral 291964

Yes (and I want my 15 points for that!)

But to expand, their scopes do not overlap, so the import is necessary.

Randall Schulz 26182

"Can access private members" means that the following works:

object Foo {
  private def bar = 4
}

class Foo {
  def foo = Foo.bar
}

Alexey Romanov 162387

Source: stackoverflow.com