collection

final class EqSetFacade[A <: AnyRef] extends SetFacade[A]

Wraps the Traversable t to a Set utilizing reference equality.
Wraps the Traversable t to a Set utilizing reference equality. It aims at efficiently creating a set in case the caller ensures that all elements in t are unique. + and - are O(N) returning scala.collection.immutable.Set.
trait FilterableSet[A] extends AnyRef

Template for sets having a withFilter that keeps Set semantics.
Template for sets having a withFilter that keeps Set semantics. This class becomes obsolete as soon as scala.collection.Set.withFilter returns a Set instead of just FilterMonadic.
final class FilteredSet[A] extends collection.immutable.Set[A] with FilterableSet[A]

A Set implementation extended by FilterableSet.
final class SeqFacade[A] extends Seq[A]

Wraps t to a Seq.
Wraps t to a Seq. It helps to avoid the creation of a copy of the elements of t when passing t to repeated parameters of type A. apply is O(N).
class SetFacade[A] extends collection.immutable.Set[A]

Wraps the Traversable t to a Set.
Wraps the Traversable t to a Set. It aims at efficiently creating a set in case the caller ensures that all elements in t are unique. + and - are O(N) returning scala.collection.immutable.Set.

object Abstract

Contains types that increase access to some private[scala] members of scala.collection in order to make them reusable in any package.
object Util
def breakOut[From, T, To](implicit b: CanBuildFrom[Nothing, T, To]): CanBuildFrom[From, T, To]