OpenCombine

This release is compatible with Xcode 14.2 and Swift 5.7

Additions

• Primary associated type support for Publisher, Subscriber, ConnectablePublisher, Subject and Scheduler protocols (#239)

Bugfixes

• Fixed nullifying the reference to parent in Future's conduit (#239)

This release is compatible with Xcode 13.2.

Additions

• Windows support (thank you @MaxDesiatov!)
• Publishers.Throttle (#195, thank you @stuaustin)
• Publishers.PrefixUntilOutput (#206)
• Publishers.Zip (#222, thank you @MaxDesiatov and @ArthurChi)
• async/await extensions: Future.value and Publisher.values (#219)

Bugfixes

• Fixed reentrancy bugs in Subscribers.Sink and Subscribers.Assign (#210)
• Fixed lifecycle bugs in Publishers.Concatenate (#210)

This release adds a new OpenCombineShim product that will conditionally re-export either
Combine on Apple platforms, or OpenCombine on other platforms. Additionally, ObservableObject
protocol is now available and working on all platforms.

A bug with Timer(timeInterval:repeats:block:) firing immediately not accounting for the passed
timeInterval is fixed.

Merged pull requests:

• Fix Timer(timeInterval:repeats:block:) not accounting timeInterval (#196) via @grigorye
• Add OpenCombineShim product for easier importing (#197) via @MaxDesiatov
• Implementation for ObservableObject with Mirror (#201) via @kateinoigakukun

This release is compatible with Xcode 12.1.

Additions

• Publisher.assigned(to:) method that accepts a Published.Publisher.
• New Publisher.switchToLatest() overloads.
• New Publisher.flatMap(maxPublishers:_:) overloads.
• Optional.publisher property.
• New _Introspection protocol that allows to track and explore the subscription graph and data flow.

Bugfixes

• The project should now compile without warnings.
• The following entities have been updated to match the behavior of the newest Combine version:
  • Subscribers.Assign
  • Publishers.Breakpoint
  • Publishers.Buffer
  • CombineIdentifier
  • Publishers.CompactMap
  • Publishers.Concatenate
  • Publishers.Debounce
  • Publishers.Delay
  • DispatchQueue.SchedulerTimeType.Stride
  • Publishers.Drop
  • Publishers.Encode
  • Publishers.Decode
  • Publishers.Filter
  • Publishers.HandleEvents
  • Publishers.IgnoreOutput
  • Publishers.MeasureInterval
  • OperationQueue scheduler
  • Published
  • Publishers.ReceiveOn
  • Publishers.ReplaceError
  • RunLoop scheduler
  • Publishers.Sequence
  • Subscribers.Sink
  • Publishers.SubscribeOn
  • Publishers.Timeout
  • Timer publisher

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1 and later.

Bugfixes

• Fixed a crash caused by recursive acquisition of a non-recursive lock in SubbjectSubscriber (#186, thanks @stuaustin for the bug report)

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1 and later.

Bugfixes

• Fixed build errors on Linux with Swift 5.0 and Swift 5.3 toolchains (thanks, @adamleonard and @devmaximilian)

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1 and later.

This release is compatible with Xcode 11.5.

Additions

• Timer.publish(every:tolerance:on:in:options:) (#156, thank you @MaxDesiatov)
• OperationQueue scheduler (#165)
• Publishers.Timeout (#164)
• Publishers.Debounce (#133)

Bugfixes

• PassthroughSubject, CurrentValueSubject and Future have been rewritten from scratch. They are now faster, more correct and no longer leak subscriptions (#170).

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1 and later.

This release is compatible with Xcode 11.5.

Additions

• The Subscribers.Demand struct can be nicely formatted in LLDB (#146, thank you @mayoff).
• Publishers.SwitchToLatest (#142).
• The RunLoop scheduler in OpenCombineFoundation (#131).
• Publishers.Catch and Publishers.TryCatch (#140).

Bugfixes

• Worked around a bug in the Swift compiler when building the COpenCombineHelpers target (#145, thank you @mayoff).
• Improved documentation.

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1 and later.

This release is compatible with Xcode 11.3.1.

Additions

• Publishers.ReplaceEmpty (#122, thank you @spadafiva)
• NotificationCenter.Publisher (#84)
• URLSession.DataTaskPublisher (#127)
• Publishers.DropUntilOutput (#136)
• Publishers.CollectByCount (#137)
• Publishers.AssertNoFailure (#138)
• Publishers.Buffer (#143)

Bugfixes

• Fixed integer overflows in DispatchQueue.SchedulerTimeType.Stride (#126, #130)
• Fixed the 'default will never be executed' warning on non-Darwin platforms (like Linux) (#129)

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1.

This release is compatible with Xcode 11.2.1.

Additions

• Publishers.Delay (#114)
• Publishers.ReceiveOn (#115)
• Publishers.SubscribeOn (#116)
• Publishers.MeasureInterval (#117)
• Publishers.Breakpoint (#118)
• Publishers.HandleEvents (#118)
• Publishers.Concatenate (#90)

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1.

This release is compatible with Xcode 11.2.1.

Thread safety

• Publishers.IgnoreOutput has been audited for thread safety (#88)
• Publishers.DropWhile and Publishers.TryDropWhile have been audited for thread safety (#87)

Additions

• Publishers.Output (#91)
• Record (#100)
• Publishers.RemoveDuplicates, Publishers.TryRemoveDuplicates (#89)
• Publishers.PrefixWhile, Publishers.TryPrefixWhile (#89)
• Future (#107, thanks @MaxDesiatov!)

Bugfixes

• The behavior of the Publishers.Encode and Publishers.Decode subscriptions is fixed (#112)
• The behavior of the Publishers.IgnoreOutput subscription is fixed (#88)
• The behavior of the Publishers.Print subscription is fixed (#92)
• The behavior of the Publishers.ReplaceError subscription is fixed (#89)
• The behavior of the Publishers.Filter and Publishers.TryFilter subscriptions is fixed (#89)
• The behavior of the Publishers.CompactMap and Publishers.TryCompactMap subscriptions is fixed (#89)
• The behavior of the Publishers.Multicast subscription is fixed (#110)
• Publishers.FlatMap is reimplemented from scratch. Its behavior is fixed in many ways, it now fully matches that of Combine (#89)
• @Published property wrapper is fixed! (#112)
• The behavior of DispatchQueue.SchedulerTimeType is fixed to match that of the latest SDKs (#96)
• OpenCombine is now usable on 32 bit platforms. Why? Because we can.

Known issues

• The default implementation of the objectWillChange requirement of the ObservableObject protocol is not available in Swift 5.1.

This release is compatible with Xcode 11.1.

Additions

• Publishers.MapKeyPath (#71)
• Publishers.Reduce (#76)
• Publishers.TryReduce (#76)
• Publishers.Last (#76)
• Publishers.LastWhere (#76)
• Publishers.TryLastWhere (#76)
• Publishers.AllSatisfy (#76)
• Publishers.TryAllSatisfy (#76)
• Publishers.Contains (#76)
• Publishers.ContainsWhere (#76)
• Publishers.TryContainsWhere (#76)
• Publishers.Collect (#76)
• Publishers.Comparison (#76)
• Publishers.Drop (#70, thank you @5sw!)
• Publishers.Scan (#83, thank you @epatey!)
• Publishers.TryScan (#83, thank you @epatey!)

Bugfixes

• Publishers.Print doesn't print a redundant whitespace anymore.

Known issues

• @Published property wrapper doesn't work yet

This release is compatible with Xcode 11.1.

Thread safety

• SubjectSubscriber (which is used when you subscribe a subject to a publisher) has been audited for thread-safety
• Publishers.Multicast has been audited for thread safety (#63)
• Publishers.TryMap has been audited for thread safety
• Just has been audited for thread safety
• Optional.Publisher has been audited for thread safety
• Publishers.Sequence has been audited for thread safety
• Publishers.ReplaceError has been audited for thread safety
• Subscribers.Assign has been audited for thread safety
• Subscribers.Sink has been audited for thread safety

Bugfixes

• The semantics of Publishers.Print, Publishers.TryMap have been fixed
• Fix iterator.next() being called twice in Publishers.Sequence (#62)
• The default initializer of CombineIdentifier (the one that takes no arguments) is now much faster (#66, #69)
• When Publishers.Sequence subscription is cancelled while it emits values, the cancellation is respected (#73, thanks @5sw!)

Additions

• DispatchQueueScheduler (#46)
• Equatable conformances for First, ReplaceError
• Added eraseToAnyPublisher() method (#59, thanks @evyasafhouzz for reporting!)
• Publishers.MakeConnectable (#61)
• Publishers.Autoconnect (#60)
• Publishers.Share (#60)

Known issues

• @Published property wrapper doesn't work yet

Among other things this release is compatible with Xcode 11.0 GM seed.

Bugfixes

• Store newly send value in internal variable inside CurrentValueObject (#39, thanks @FranzBusch!)

Additions

• Filter/TryFilter (#22, thanks @spadafiva!)
• First/FirstWhere/TryFirstWhere (#22, thanks again @spadafiva!)
• CompactMap/TryCompacrMap (#32)
• IgnoreOutput (#44, thanks @epatey!)
• ReplaceError (#50, thanks @vladiulianbogdan!)
• FlatMap (#45, thanks again @epatey!)

Known issues

• @Published property wrapper doesn't work yet

Updated for the newest Xcode 11.0 beta 5

The first pre-pre-pre-alpha release is here!

Lots of stuff still unimplemented.

For now we have:

• Just
• Publishers.Decode
• Publishers.DropWhile
• Publishers.Empty
• Publishers.Encode
• Publishers.Fail
• Publishers.Map
• Publishers.Multicast
• Publishers.Once
• Publishers.Optional
• Publishers.Print
• Publishers.Sequence
• Subscribers.Assign
• Subscribers.Completion
• Subscribers.Demand
• Subscribers.Sink
• AnyCancellable
• AnyPublisher
• AnySubject
• AnySubscriber
• Cancellable
• CombineIdentifier
• ConnectablePublisher
• CurrentValueSubject
• CustomCombineIdentifierConvertible
• ImmediateScheduler
• PassthroughSubject
• Publisher
• Result
• Scheduler
• Subject
• Subscriber
• Subscription