some random shit

dependents-dependencies.scala

// Start writing your ScalaFiddle code here
trait Foo[A] {
  def apply: A
}

trait Bar[I] {
  def apply(i: I): Unit
}

trait FooBarDependencies {}

object FooBarDependencies {
  def apply[I, A](implicit f: Foo[A], b: Bar[I]) =
    new FooBarDependencies {}
}

trait FooBarDependents[I, A] {
  def foo: Foo[A]
  def bar: Bar[I]
}

// on line 13, Foo and Bar are dependencies because they are required for construction
// on line 17, construction is a foregone conclusion, and you can access the Foo whose
// type is _dependent_ on the member of FooBarDependents, and the Bar whose type is 
// _dependent_ on the member of FooBarDependents