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Within LTS Haskell 24.51 (ghc-9.10.3)

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1. maybeModifyIdInfo :: Maybe IdInfo -> Id -> Id

   ghc	GHC.Types.Id

   No documentation available.

2. maybeSubstNameShape :: NameShape -> Name -> Maybe Name

   ghc	GHC.Types.Name.Shape

   Like substNameShape, but returns Nothing if no substitution works.

3. maybeParens :: Bool -> Doc -> Doc

   ghc	GHC.Utils.Ppr

   Apply parens to Doc if boolean is true.

4. maybeP :: forall (m :: Type -> Type) a' a b' b r . Monad m => Proxy a' a b' b m (Maybe r) -> Proxy a' a b' b (MaybeT m) r

   pipes	Pipes.Lift

   Wrap the base monad in MaybeT

5. maybePokeGError :: Ptr (Ptr GError) -> Maybe GError -> IO ()

   haskell-gi-base	Data.GI.Base.GError

   If the passed in Maybe GError is not Nothing, store a copy in the passed in pointer, unless the pointer is nullPtr.

6. maybeWithManagedPtr :: (HasCallStack, ManagedPtrNewtype a) => Maybe a -> (Ptr a -> IO c) -> IO c

   haskell-gi-base	Data.GI.Base.ManagedPtr

   Like withManagedPtr, but accepts a Maybe type. If the passed value is Nothing the inner action will be executed with a nullPtr argument.

7. maybeFromPtr :: Ptr a -> Maybe (Ptr a)

   haskell-gi-base	Data.GI.Base.Utils

   Check if the pointer is nullPtr, and wrap it on a Maybe accordingly.

8. maybeM :: Monad m => b -> Maybe a -> (a -> m b) -> m b

   haskell-gi-base	Data.GI.Base.Utils

   Like maybe, but for actions on a monad, and with slightly different argument order.

9. maybeReleaseFunPtr :: Maybe (Ptr (FunPtr a)) -> IO ()

   haskell-gi-base	Data.GI.Base.Utils

   If given a pointer to the memory location, free the FunPtr at that location, and then the pointer itself. Useful for freeing the memory associated to callbacks which are called just once, with no destroy notification.

10. mayBeNull :: Arg -> Bool

    haskell-gi	Data.GI.CodeGen.API

    No documentation available.

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