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Assert function #61

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jonathanlking opened this issue Oct 22, 2019 · 0 comments

jonathanlking commented Oct 22, 2019

I've been using the following function quite a lot recently - I'm happy to open a PR if you agree it's useful (feel free to close otherwise) 🙂.

assert :: Bool -> e -> Validation e ()
assert True _  = Success ()
assert False e = Failure e

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