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Within LTS Haskell 24.49 (ghc-9.10.3)

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  1. fmapMaybe :: Filterable f => (a -> Maybe b) -> f a -> f b

    reflex Reflex.Class

    Alias for mapMaybe

  2. mapAccumMaybe :: (Accumulator t f, MonadHold t m, MonadFix m) => (a -> b -> (Maybe a, Maybe c)) -> a -> Event t b -> m (f a, Event t c)

    reflex Reflex.Class

    No documentation available.

  3. mapAccumMaybeM :: (Accumulator t f, MonadHold t m, MonadFix m) => (a -> b -> PushM t (Maybe a, Maybe c)) -> a -> Event t b -> m (f a, Event t c)

    reflex Reflex.Class

    No documentation available.

  4. mapMaybe :: Filterable f => (a -> Maybe b) -> f a -> f b

    reflex Reflex.Class

    Like mapMaybe.

  5. module Reflex.FunctorMaybe

    No documentation available.

  6. class FunctorMaybe (f :: Type -> Type)

    reflex Reflex.FunctorMaybe

    Deprecated: Use Filterable from Data.Witherable instead

  7. fmapMaybe :: FunctorMaybe f => (a -> Maybe b) -> f a -> f b

    reflex Reflex.FunctorMaybe

    Combined mapping and filtering function.

  8. heightBagRemoveMaybe :: Height -> HeightBag -> Maybe HeightBag

    reflex Reflex.Spider.Internal

    No documentation available.

  9. reifyTypeWithLocals_maybe :: DsMonad q => Name -> q (Maybe Type)

    th-desugar Language.Haskell.TH.Desugar

    Like reifyWithLocals_maybe but for types and kinds. Note that a return value of Nothing might mean that the name is not in scope, or it might mean that the full type of the name cannot be determined. (Use reifyWithLocals_maybe if you really need to tell the difference.)

  10. reifyWithLocals_maybe :: DsMonad q => Name -> q (Maybe Info)

    th-desugar Language.Haskell.TH.Desugar

    Like reify from Template Haskell, but looks also in any not-yet-typechecked declarations. To establish this list of not-yet-typechecked declarations, use withLocalDeclarations. Returns Nothing if reification fails. Note that no inferred type information is available from local declarations; bottoms may be used if necessary.

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