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Utility functions and classes related to the 'dart:async' library.

1.3.0 #

  • Added StreamCompleter class for creating a stream now and providing its events later as another stream.

  • Added StreamQueue class which allows requesting events from a stream before they are avilable. It is like a StreamIterator that can queue requests.

  • Added SubscriptionStream which creates a single-subscription stream from an existing stream subscription.

  • Added a ResultFuture class for synchronously accessing the result of a wrapped future.

  • Added FutureGroup.onIdle and FutureGroup.isIdle, which provide visibility into whether a group is actively waiting on any futures.

  • Add an AsyncMemoizer class for running an asynchronous block of code exactly once.

  • Added delegating wrapper classes for a number of core async types: DelegatingFuture, DelegatingStreamConsumer, DelegatingStreamController, DelegatingSink, DelegatingEventSink, DelegatingStreamSink, and DelegatingStreamSubscription. These are all simple wrappers that forward all calls to the wrapped objects. They can be used to expose only the desired interface for subclasses, or extended to add extra functionality.

1.2.0 #

  • Added a FutureGroup class for waiting for a group of futures, potentially of unknown size, to complete.

  • Added a StreamGroup class for merging the events of a group of streams, potentially of unknown size.

1.1.1 #

  • Updated SDK version constraint to at least 1.9.0.

1.1.0 #

  • ChangeLog starts here.
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Utility functions and classes related to the 'dart:async' library.

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