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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.collection
import generic._
import TraversableView.NoBuilder
trait GenIterableViewLike[+A,
+Coll,
+This <: GenIterableView[A, Coll] with GenIterableViewLike[A, Coll, This]]
extends GenIterable[A] with GenIterableLike[A, This] with GenTraversableView[A, Coll] with GenTraversableViewLike[A, Coll, This] {
self =>
trait Transformed[+B] extends GenIterableView[B, Coll] with super.Transformed[B] {
def iterator: Iterator[B]
override def foreach[U](f: B => U): Unit = iterator foreach f
override def toString = viewToString
override def isEmpty = !iterator.hasNext
}
trait EmptyView extends Transformed[Nothing] with super.EmptyView {
final def iterator: Iterator[Nothing] = Iterator.empty
}
trait Forced[B] extends super.Forced[B] with Transformed[B] {
def iterator = forced.iterator
}
trait Sliced extends super.Sliced with Transformed[A] {
def iterator: Iterator[A] = self.iterator.slice(from, until)
}
trait Mapped[B] extends super.Mapped[B] with Transformed[B] {
def iterator = self.iterator map mapping
}
trait FlatMapped[B] extends super.FlatMapped[B] with Transformed[B] {
def iterator: Iterator[B] = self.iterator flatMap mapping
}
trait Appended[B >: A] extends super.Appended[B] with Transformed[B] {
def iterator = self.iterator ++ rest
}
trait Filtered extends super.Filtered with Transformed[A] {
def iterator = self.iterator filter pred
}
trait TakenWhile extends super.TakenWhile with Transformed[A] {
def iterator = self.iterator takeWhile pred
}
trait DroppedWhile extends super.DroppedWhile with Transformed[A] {
def iterator = self.iterator dropWhile pred
}
trait Zipped[B] extends Transformed[(A, B)] {
protected[this] val other: GenIterable[B]
def iterator: Iterator[(A, B)] = self.iterator zip other.iterator
final override protected[this] def viewIdentifier = "Z"
}
trait ZippedAll[A1 >: A, B] extends Transformed[(A1, B)] {
protected[this] val other: GenIterable[B]
protected[this] val thisElem: A1
protected[this] val thatElem: B
final override protected[this] def viewIdentifier = "Z"
def iterator: Iterator[(A1, B)] =
self.iterator.zipAll(other.iterator, thisElem, thatElem)
}
}
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