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1. eqMaybe :: EqMaybe a b => a -> b -> Bool

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

   No documentation available.

2. gvariantFromMaybe :: IsGVariant a => Maybe a -> IO GVariant

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

   Convert a Maybe value into a corresponding GVariant of maybe type.

3. gvariantToMaybe :: IsGVariant a => GVariant -> IO (Maybe (Maybe a))

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

   Try to decode a maybe GVariant into the corresponding Maybe type. If the conversion is successful this returns Just x, where x itself is of Maybe type. So, in particular, Just Nothing indicates a successful call, and means that the GVariant of maybe type was empty.

4. class EqMaybe a b

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

   No documentation available.

5. eqMaybe :: EqMaybe a b => a -> b -> Bool

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

   No documentation available.

6. returnMayBeNull :: Callable -> Bool

   haskell-gi	Data.GI.CodeGen.API

   No documentation available.

7. wrapMaybe :: Arg -> CodeGen e Bool

   haskell-gi	Data.GI.CodeGen.Callable

   Given an argument to a function, return whether it should be wrapped in a maybe type (useful for nullable types). We do some sanity checking to make sure that the argument is actually nullable (a relatively common annotation mistake is to mix up (optional) with (nullable)).

8. returnMayBeNull :: Callable -> Bool

   haskell-gi	Data.GI.GIR.Callable

   No documentation available.

9. newtype FromMaybe b

   foldl	Control.Foldl.NonEmpty

   instance Monad m => Semigroup (FromMaybe m a) where
   mappend (FromMaybe f) (FromMaybe g) = FromMaybeM (f . Just . g)
   

10. FromMaybe :: (Maybe b -> b) -> FromMaybe b

    foldl	Control.Foldl.NonEmpty

    No documentation available.

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