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 9.14.1 · lts/ghc-9.14.x · 3e2d568 · 2026-10-11
Modulegenvalidity-property-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