"A design pattern is intended to compensate for the lack of language features" translated from @manaten's quote #scalaconfjp
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@dibblego@jonsterling what's a better workaround? I think using product of exponents is nice way of encoding sums.
@EyalL @jonsterling GoF is on the right track, but disservices any useful solution with lack of principled explanation to point of unusable.
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@dibblego People use visitor from GoF, so it's usable. They don't explain it in an algebraic way, but they do make it clear why it works. -
@EyalL Sucks to be them innit. - Show replies
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