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1. failureToMaybe :: Validation e a -> Maybe e

   validation-selective	Validation.Combinators

   Maps Failure of Validation to Just.

   >>> failureToMaybe (Failure True)
   Just True
   
   >>> failureToMaybe (Success "aba")
   Nothing
   

2. successToMaybe :: Validation e a -> Maybe a

   validation-selective	Validation.Combinators

   Maps Success of Validation to Just.

   >>> successToMaybe (Failure True)
   Nothing
   
   >>> successToMaybe (Success "aba")
   Just "aba"
   

3. catMaybes :: forall (m :: Type -> Type) a . Monad m => Stream m (Maybe a) -> Stream m a

   vector-stream	Data.Stream.Monadic

   No documentation available.

4. mapMaybe :: forall (m :: Type -> Type) a b . Monad m => (a -> Maybe b) -> Stream m a -> Stream m b

   vector-stream	Data.Stream.Monadic

   No documentation available.

5. mapMaybeM :: Monad m => (a -> m (Maybe b)) -> Stream m a -> Stream m b

   vector-stream	Data.Stream.Monadic

   Apply monadic function to each element and drop all Nothings

6. runParserMaybe :: Parser e a -> ByteString -> Maybe a

   web-rep	Web.Rep.Internal.FlatParse

   Run a Parser, throwing away leftovers. Nothing on Fail or Err.

   >>> runParserMaybe ws "x"
   Nothing
   

   >>> runParserMaybe ws " x"
   Just ' '
   

7. listMaybeRep :: forall (m :: Type -> Type) a . Monad m => Maybe ByteString -> ByteString -> (ByteString -> Maybe a -> SharedRep m (Maybe a)) -> Int -> [a] -> SharedRep m [Maybe a]

   web-rep	Web.Rep.SharedReps

   A fixed-sized list of Maybe a's

8. getMaybeOpt :: Opt tp a => OptionSetting tp -> IO (Maybe a)

   what4	What4.Config

   Return the current value of the option, as a Maybe value.

9. exprMaybeId :: forall t (tp :: BaseType) . Expr t tp -> Maybe (Nonce t tp)

   what4	What4.Expr.Builder

   No documentation available.

10. joinMaybePE :: Maybe (PartExpr p v) -> PartExpr p v

    what4	What4.Partial

    joinMaybePE = fromMaybe Unassigned.

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