Fault recovery policy

[makingthematrix]

Sometimes an event source is based on a function that may throw an exception. For now, there is no established policy how to deal with it and no unit tests. Generators ignore failures and keep going, but in some other cases the event source might stop working.

I'm thinking of an enum:

enum RecoveryPolicy:
  case Ignore
  case Panic
  case RetryAndIgnore(attempts: Int)
  case RetryAndPanic(attempts: Int)

It would be given to an event source on creation (Ignore could be the default option) and all subsequent event sources created by transformations would get the same as the original one. In case of .zip a priority would have to be decided.

More later.