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Standard library for the Scala Programming Language
/* __ *\
** ________ ___ / / ___ 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]
}
}