Scala example source code file (GenericParCompanion.scala)

This example Scala source code file (GenericParCompanion.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

cc, collection, combiner, genericparcompanion, genericparmapcompanion, parallel, pariterable, parmap, q

The GenericParCompanion.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2010-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala
package collection
package generic

import scala.collection.parallel.Combiner
import scala.collection.parallel.ParIterable
import scala.collection.parallel.ParMap
import scala.language.higherKinds

/** A template class for companion objects of parallel collection classes.
 *  They should be mixed in together with `GenericCompanion` type.
 *
 *  @define Coll `ParIterable`
 *  @tparam CC   the type constructor representing the collection class
 *  @since 2.8
 */
trait GenericParCompanion[+CC[X] <: ParIterable[X]] {
  /** The default builder for $Coll objects.
   */
  def newBuilder[A]: Combiner[A, CC[A]]

  /** The parallel builder for $Coll objects.
   */
  def newCombiner[A]: Combiner[A, CC[A]]
}

trait GenericParMapCompanion[+CC[P, Q] <: ParMap[P, Q]] {
  def newCombiner[P, Q]: Combiner[(P, Q), CC[P, Q]]
}