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object Test {
import scala.collection._
trait T {
def f() : Unit
}
def view = new T {
def f() = ()
}
trait TLike[+A, RR] { self =>
def repr: RR = ???
def view2 = new TraversableView[A, RR] {
protected lazy val underlying = self.repr
override def foreach[U](f: A => U): Unit = ???
}
}
}
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