Converts the Scan-operation from PushPullStage to GraphStage

2016-04-14 17:33:19 +02:00 · 2016-04-14 17:33:19 +02:00 · 455805cda9
commit 455805cda9
parent a1423b6e7d
7 changed files with 54 additions and 80 deletions
--- a/akka-stream/src/main/scala/akka/stream/scaladsl/Flow.scala
+++ b/akka-stream/src/main/scala/akka/stream/scaladsl/Flow.scala
@ -745,7 +745,7 @@ trait FlowOps[+Out, +Mat] {
   *
   * '''Cancels when''' downstream cancels
   */
-  def scan[T](zero: T)(f: (T, Out) ⇒ T): Repr[T] = andThen(Scan(zero, f))
+  def scan[T](zero: T)(f: (T, Out) ⇒ T): Repr[T] = via(Scan(zero, f))

  /**
   * Similar to `scan` but only emits its result when the upstream completes,