Scala example source code file (BitSetFactory.scala)

This example Scala source code file (BitSetFactory.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

bitset, bitsetfactory, bitsetlike, builder, canbuildfrom, coll, collection, int

The BitSetFactory.scala Scala example source code

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



package scala
package collection
package generic

import scala.collection._
import mutable.Builder

/** @define coll collection
 *  @define Coll `Traversable`
 *  @define factoryInfo
 *    This object provides a set of operations to create `$Coll` values.
 *    @author Martin Odersky
 *    @version 2.8
 *  @define canBuildFromInfo
 *    The standard `CanBuildFrom` instance for $Coll objects.
 *    @see CanBuildFrom
 *  @define bitsetCanBuildFrom
 *    The standard `CanBuildFrom` instance for bitsets.
 */
trait BitSetFactory[Coll <: BitSet with BitSetLike[Coll]] {
  def empty: Coll
  def newBuilder: Builder[Int, Coll]
  def apply(elems: Int*): Coll = (empty /: elems) (_ + _)
  def bitsetCanBuildFrom = new CanBuildFrom[Coll, Int, Coll] {
    def apply(from: Coll) = newBuilder
    def apply() = newBuilder
  }
}