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Re-think error monad instances #26

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georgefst opened this issue May 9, 2023 · 0 comments
Open

Re-think error monad instances #26

georgefst opened this issue May 9, 2023 · 0 comments

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@georgefst
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I'm unsure about eee4e31. It works nicely when m is IO, which is the common case. But, because of the way Haskell's type classes work, this presumably rules out instances where m doesn't have MonadError instance, even though we'd ideally have instance MonadError LifxError (LifxT m), i.e. the newtype-derivable one.
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