Allow opt-out from TaskScheduler.UnobservedExceptions #1914
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mwadams
approved these changes
Apr 19, 2023
Rx.NET/Source/src/System.Reactive/Concurrency/TaskObservationOptions.cs
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idg10
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Resolves #1256
Various Rx operators and extension methods can wrap a
Taskas anIObservable<T>. Historically, if you unsubscribe before the task is finished and the task subsequently fails, the resulting exception pops out throughTaskScheduler.UnobservedException.There is a point of view that this is inconsistent with how we cope with exceptions in things like
Selectprojection callbacks that occur after unsubscription - those are just swallowed.This PR provides the ability to ask for these kinds of orphaned exceptions to be ignored when they occur in tasks, just like they are in other scenarios.
The default behaviour does not change because that would break applications depending on the
UnobservedExceptionevent. This adds new overloads enabling opting out.