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Within LTS Haskell 24.4 (ghc-9.10.2)
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maybeFilePath :: Event -> Maybe RawFilePathhinotify System.INotify No documentation available.
maybeFilePath :: Event -> Maybe RawFilePathhinotify System.INotify No documentation available.
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incipit-base Incipit.Base The maybeToList function returns an empty list when given Nothing or a singleton list when given Just.
Examples
Basic usage:>>> maybeToList (Just 7) [7]
>>> maybeToList Nothing []
One can use maybeToList to avoid pattern matching when combined with a function that (safely) works on lists:>>> import GHC.Internal.Text.Read ( readMaybe ) >>> sum $ maybeToList (readMaybe "3") 3 >>> sum $ maybeToList (readMaybe "") 0
maybeToLeft :: r -> Maybe l -> Either l rincipit-base Incipit.Either Turn Just into Left and Nothing into Right with the supplied value.
maybeToRight :: l -> Maybe r -> Either l rincipit-base Incipit.Either Turn Just into Right and Nothing into Left with the supplied value.
maybeYield :: forall o (k :: Type -> Type) . Maybe o -> Plan k o ()machines Data.Machine.Plan Like yield, except stops if there is no value to yield.
maybeD :: (a -> Q [Dec]) -> Maybe a -> Q [Dec]names-th Language.Haskell.TH.Lib.Extra May generate declaration template.
maybeOpenRxWindow :: Int -> FlowControlType -> RxFlow -> (RxFlow, Maybe Int)network-control Network.Control Record that we have consumed some received data May return a window update; see RxFlow for details.
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pontarius-xmpp Network.Xmpp.IM.PresenceTracker No documentation available.
maybeList :: [Maybe e] -> By6Bits eprimitive-extras PrimitiveExtras.By6Bits No documentation available.