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Add Bifunctor #17

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tmciver opened this issue Sep 23, 2016 · 0 comments
Open

Add Bifunctor #17

tmciver opened this issue Sep 23, 2016 · 0 comments

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@tmciver
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tmciver commented Sep 23, 2016 •
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In clients of the library it has been useful to create an EitherToEither visitor for the purpose of converting the value held by Left. This has been done to change the error message string. Bifunctors give this ability in a more Haskell-like way and is preferred. An EitherToEither visitor could still be included in the library as an alternative method.
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