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Zulip Chat Archive

Stream: Is there code for X?

Topic: Getting instance from parent instance


Anton Lorenzen (Feb 09 2020 at 15:55):

If I have a class A and a class B that extends A as well as an instance value of B, how can I get an instance of A?

Mario Carneiro (Feb 09 2020 at 15:59):

Typeclass inference should find it, but the instance is called B.to_A


Last updated: May 02 2025 at 03:31 UTC

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