🍒[5.10][Distributed] Don't crash in thunk generation when missing SR conformance #69502
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Included another 1 line cleanup from #69901 |
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DougGregor
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Nov 17, 2023
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Problem: We would properly diagnose the missing conformance; but the compiler would still try to emit a thunk for the errored func. Tests which only -typecheck -verify would not catch this issue because it is after type checking.
Solution: This prevents distributed thunks from being generated when the func they are based on already has errors -- otherwise we can run into missing types and null pointers as we try to generate the thunk.
Risk: Low, affects only this specific situation and just avoids emitting thunks when they cannot be correct to begin with -- when the funk is broken.
Impact: Only distributed functions; This provides a better failure path - rather than a crash, just the expected error reporting.
Review by: @xedin @slavapestov
Testing: CI testing
Original PR: #69501
Radar: rdar://116261701
Related radar: rdar://117677422