A class of types that are the result of functions that can fail
Methods
hasFailed :: f a -> BoolresultIfSucceeded :: f a -> Maybe a
:: a typeCtrl KGHC 9.10.3 · lts/ghc-9.10.x · c74966e · 2026-09-27
Modulegenvalidity-sydtest-1.0.0.0Haskell2010
A class of types that are the result of functions that can fail
hasFailed :: f a -> BoolresultIfSucceeded :: f a -> Maybe a