Github user apocolipse commented on the issue: https://github.com/apache/thrift/pull/1084 Also, to anyone using this, I'm making a pretty decent sized change right now to how `TEnums` work with Swift Enums. Backstory is that Swift enums are overly opinionated and don't work well if a new enum value is added to a service and the client hasn't updated. Other languages handle this pretty easily since enums are just Ints to them, they simply read and store the value even if it doesn't match a case. Since Swift's enums are finite and opinionated, and not backed by Ints, this posed a bit of a challenge. I initially designed the TEnums to be RawRepresentable Int32 since it just made sense at the time, this let the library handle read/write generically and the generator only needed to declare the cases and an empty init case. The problem arose when we saw it failing when new values came in. Granted it was designed to do so, but we needed a way internally to gracefully handle that. As a replacement, I'm removing the RawRepresentable/Int32 requirement on TEnums, and removing the protocol read from the library as well, they will retain a rawValue and init(rawValue:) to facilitate serialization and maintain compatibility with code that may be already using those, but they're no longer inherently RawRepresentable. The reason for this decision was to add an `.unknown(Int32)` case that retains the extra value. This is an opt-in case, so you'll need to use the generator flag `safe_enums`, but this way you don't lose that information, and in the likely event you'll pull something that has an unknown enum value and then need to send it back to a service, you'll retain the appropriate value and maintain compatibility between server/client version mismatch.
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