Scala example source code file (IndexedSeq.scala)

This example Scala source code file (IndexedSeq.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, arraybuffer, builder, canbuildfrom, genericcompanion, generictraversabletemplate, indexedseq, indexedseqlike, seq, seqfactory

The IndexedSeq.scala Scala example source code

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



package scala
package collection
package mutable

import generic._

/** A subtrait of `collection.IndexedSeq` which represents sequences
 *  that can be mutated.
 *
 *  $indexedSeqInfo
 */
trait IndexedSeq[A] extends Seq[A]
                   with scala.collection.IndexedSeq[A]
                   with GenericTraversableTemplate[A, IndexedSeq]
                   with IndexedSeqLike[A, IndexedSeq[A]] {
  override def companion: GenericCompanion[IndexedSeq]  = IndexedSeq
  override def seq: IndexedSeq[A] = this
}

/** $factoryInfo
 *  The current default implementation of a $Coll is an `ArrayBuffer`.
 *  @define coll mutable indexed sequence
 *  @define Coll `mutable.IndexedSeq`
 */
object IndexedSeq extends SeqFactory[IndexedSeq] {
  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] = ReusableCBF.asInstanceOf[GenericCanBuildFrom[A]]
  def newBuilder[A]: Builder[A, IndexedSeq[A]] = new ArrayBuffer[A]
}