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Standard library for the SubScript extension of the Scala Programming Language
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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2006-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
package collection
import generic._
import mutable.Builder
/** A base trait for indexed sequences.
* $indexedSeqInfo
*/
trait IndexedSeq[+A] extends Seq[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 a `Vector`.
* @define coll indexed sequence
* @define Coll `IndexedSeq`
*/
object IndexedSeq extends IndexedSeqFactory[IndexedSeq] {
// A single CBF which can be checked against to identify
// an indexed collection type.
override val ReusableCBF: GenericCanBuildFrom[Nothing] = new GenericCanBuildFrom[Nothing] {
override def apply() = newBuilder[Nothing]
}
def newBuilder[A]: Builder[A, IndexedSeq[A]] = immutable.IndexedSeq.newBuilder[A]
implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] =
ReusableCBF.asInstanceOf[GenericCanBuildFrom[A]]
}