scala.collection.generic.ClassTagTraversableFactory#GenericCanBuildFrom

class GenericCanBuildFrom[A] extends CanBuildFrom[CC[_], A, CC[A]]

Instance Constructors From scala.collection.generic.ClassTagTraversableFactory.GenericCanBuildFrom ——————————————————————————–

new GenericCanBuildFrom()(implicit tag: ClassTag[A])

(defined at scala.collection.generic.ClassTagTraversableFactory.GenericCanBuildFrom)


Value Members From scala.collection.generic.ClassTagTraversableFactory.GenericCanBuildFrom ——————————————————————————–

def apply(): Builder[A, CC[A]]

Creates a new builder from scratch.

  • returns
    • a builder for collections of type To with element type Elem .
  • Definition Classes
    • GenericCanBuildFrom → CanBuildFrom
  • See also
    • scala.collection.breakOut

(defined at scala.collection.generic.ClassTagTraversableFactory.GenericCanBuildFrom)

def apply(from: CC[_]): Builder[A, CC[A]]

Creates a new builder on request of a collection.

  • from
    • the collection requesting the builder to be created.
  • returns
    • a builder for collections of type To with element type Elem . The collections framework usually arranges things so that the created builder will build the same kind of collection as from .
  • Definition Classes
    • GenericCanBuildFrom → CanBuildFrom

(defined at scala.collection.generic.ClassTagTraversableFactory.GenericCanBuildFrom)


Value Members From Implicit scala.collection.parallel.CollectionsHaveToParArray ——————————————————————————–

def toParArray: ParArray[T]

  • Implicit information
    • This member is added by an implicit conversion from GenericCanBuildFrom [A] to CollectionsHaveToParArray [GenericCanBuildFrom [A], T] performed by method CollectionsHaveToParArray in scala.collection.parallel. This conversion will take place only if an implicit value of type ( GenericCanBuildFrom [A]) ⇒ GenTraversableOnce [T] is in scope.
  • Definition Classes
    • CollectionsHaveToParArray (added by implicit convertion: scala.collection.parallel.CollectionsHaveToParArray)

Full Source:

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

package scala
package collection
package generic

import scala.language.higherKinds
import scala.reflect.ClassTag

/** A template for companion objects of `ClassTagTraversable` and
 *  subclasses thereof.
 *
 *  @define coll collection
 *  @define Coll `Traversable`
 *  @define genericCanBuildFromInfo
 *    The standard `CanBuildFrom` instance for $Coll objects.
 *    @author Aleksandar Prokopec
 *    @since 2.8
 */
abstract class ClassTagTraversableFactory[CC[X] <: Traversable[X] with GenericClassTagTraversableTemplate[X, CC]]
              extends GenericClassTagCompanion[CC] {

  class GenericCanBuildFrom[A](implicit tag: ClassTag[A]) extends CanBuildFrom[CC[_], A, CC[A]] {
    def apply(from: CC[_]) = from.genericClassTagBuilder[A]
    def apply = newBuilder[A]
  }
}