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…dition to the normal class-based ones. This is needed for correct functioning if a dataclass is declared in a __future__.__annotations__ context: here python converts all type hints to strings (at which point the dataclass metaclass captures them) prior to deferred resolution.
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✅ 6/6 passed, 15m15s total Running from acceptance #7025 |
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Changes
This PR cherry-picks some changes from #3039 that updated the
HistoryEncoderto work correctly with dataclasses that are declared with__future__.__annotations__in effect.When this annotation is in effect, python converts all type-hints during import/declaration into strings and then performs deferred resolution at a later stage. (This is why forward references work.) Unfortunately the dataclass mechanism captures field types prior to deferred resolution. This PR ensures that our type checking works anyway.
Linked issues
Cherry-picks from #3039.
Tests