Scala example source code file (ParSetLike.scala)

This example Scala source code file (ParSetLike.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

collection, genset, gensetlike, pariterablelike, parset, parsetlike, repr, sequential, set, setlike

The ParSetLike.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala
package collection.parallel

import scala.collection.SetLike
import scala.collection.GenSetLike
import scala.collection.GenSet
import scala.collection.Set

/** A template trait for parallel sets. This trait is mixed in with concrete
 *  parallel sets to override the representation type.
 *
 *  $sideeffects
 *
 *  @tparam T    the element type of the set
 *
 *  @author Aleksandar Prokopec
 *  @since 2.9
 */
trait ParSetLike[T,
                 +Repr <: ParSetLike[T, Repr, Sequential] with ParSet[T],
                 +Sequential <: Set[T] with SetLike[T, Sequential]]
extends GenSetLike[T, Repr]
   with ParIterableLike[T, Repr, Sequential]
{ self =>

  def empty: Repr

  // note: should not override toSet (could be mutable)

  def union(that: GenSet[T]): Repr = sequentially {
    _ union that
  }

  def diff(that: GenSet[T]): Repr = sequentially {
    _ diff that
  }
}