Scala example source code file (BitSetFactory.scala)

This example Scala source code file (BitSetFactory.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

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

The Scala BitSetFactory.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */



package scala.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
  }
}