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Diffstat (limited to 'src/library/scala/concurrent/impl/Promise.scala')
| -rw-r--r-- | src/library/scala/concurrent/impl/Promise.scala | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/library/scala/concurrent/impl/Promise.scala b/src/library/scala/concurrent/impl/Promise.scala index b15601058e..6d2fc5c87c 100644 --- a/src/library/scala/concurrent/impl/Promise.scala +++ b/src/library/scala/concurrent/impl/Promise.scala @@ -19,6 +19,10 @@ import java.util.concurrent.locks.AbstractQueuedSynchronizer private[concurrent] trait Promise[T] extends scala.concurrent.Promise[T] with scala.concurrent.Future[T] { def future: this.type = this + override def toString: String = value match { + case Some(result) => "Future("+result+")" + case None => "Future(<not completed>)" + } } /* Precondition: `executor` is prepared, i.e., `executor` has been returned from invocation of `prepare` on some other `ExecutionContext`. |