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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2011, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.collection
package interfaces
import generic._
/**
* @since 2.8
*/
trait TraversableMethods[+A, +This <: TraversableLike[A, This]] extends TraversableOnceMethods[A] {
self: Traversable[A] =>
// maps/iteration
def flatMap[B, That](f: A => GenTraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That
def map[B, That](f: A => B)(implicit bf: CanBuildFrom[This, B, That]): That
def collect[B, That](pf: PartialFunction[A, B])(implicit bf: CanBuildFrom[This, B, That]): That
def scanLeft[B, That](z: B)(op: (B, A) => B)(implicit bf: CanBuildFrom[This, B, That]): That
def scanRight[B, That](z: B)(op: (A, B) => B)(implicit bf: CanBuildFrom[This, B, That]): That
// new collections
def ++:[B >: A, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That
def ++[B >: A, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[This, B, That]): That
// element retrieval
def head: A
def headOption: Option[A]
def last: A
def lastOption: Option[A]
// subcollections
def drop(n: Int): Traversable[A]
def dropWhile(p: A => Boolean): Traversable[A]
def filter(p: A => Boolean): Traversable[A]
def filterNot(p: A => Boolean): Traversable[A]
def init: Traversable[A]
def inits: Iterator[This]
def slice(from: Int, until: Int): Traversable[A]
def tail: Traversable[A]
def tails: Iterator[This]
def take(n: Int): Traversable[A]
def takeWhile(p: A => Boolean): Traversable[A]
def withFilter(p: A => Boolean): FilterMonadic[A, Traversable[A]]
// subdivisions
def groupBy[K](f: A => K): Map[K, Traversable[A]]
def partition(p: A => Boolean): (Traversable[A], Traversable[A])
def span(p: A => Boolean): (Traversable[A], Traversable[A])
def splitAt(n: Int): (Traversable[A], Traversable[A])
// info
def stringPrefix: String
// views
def view: TraversableView[A, This]
def view(from: Int, until: Int): TraversableView[A, This]
}
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