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Hmm. This feels a bit pedantic to me. The `is_null` check looks relegated to the FFI:

https://github.com/CausalityLtd/ponyc/blob/975d9f6c60553030e...

Obviously, I have never written anything in Pony, but this absolutely seems like an advanced use case. It exists because 'C' has a concept of null, so it needs to be handled. The manual even admits that all bets are off when dealing with the FFI.



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