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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2011, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.collection.generic
import scala.collection.parallel.ParIterable
import scala.collection.parallel.Combiner
/** A template class for companion objects of `ParIterable` and subclasses thereof.
* This class extends `TraversableFactory` and provides a set of operations to create `$Coll` objects.
*
* @define coll parallel collection
* @define Coll ParIterable
*/
abstract class ParFactory[CC[X] <: ParIterable[X] with GenericParTemplate[X, CC]]
extends GenTraversableFactory[CC]
with GenericParCompanion[CC] {
//type EPC[T, C] = collection.parallel.EnvironmentPassingCombiner[T, C]
/**
* A generic implementation of the `CanCombineFrom` trait, which forwards all calls to
* `apply(from)` to the `genericParBuilder` method of the $coll `from`, and calls to `apply()`
* to this factory.
*/
class GenericCanCombineFrom[A] extends GenericCanBuildFrom[A] with CanCombineFrom[CC[_], A, CC[A]] {
override def apply(from: Coll) = from.genericCombiner
override def apply() = newBuilder[A]
}
}
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