Scala example source code file (Traversable.scala)

This example Scala source code file (Traversable.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

a, builder, canbuildfrom, genericcompanion, generictraversabletemplate, immutable, traversable, traversablefactory, traversablelike

The Traversable.scala Scala example source code

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



package scala
package collection
package immutable

import generic._
import mutable.Builder

/** A trait for traversable collections that are guaranteed immutable.
 *  $traversableInfo
 *  @define mutability immutable
 */
trait Traversable[+A] extends scala.collection.Traversable[A]
//                         with GenTraversable[A]
                         with GenericTraversableTemplate[A, Traversable]
                         with TraversableLike[A, Traversable[A]]
                         with Immutable {
  override def companion: GenericCompanion[Traversable] = Traversable
  override def seq: Traversable[A] = this
}

/** $factoryInfo
 *  The current default implementation of a $Coll is a `Vector`.
 *  @define coll immutable traversable collection
 *  @define Coll `immutable.Traversable`
 */
object Traversable extends TraversableFactory[Traversable] {
  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] = ReusableCBF.asInstanceOf[GenericCanBuildFrom[A]]
  def newBuilder[A]: Builder[A, Traversable[A]] = new mutable.ListBuffer
}