Hoogle Search

Within LTS Haskell 24.36 (ghc-9.10.3)

Note that Stackage only displays results for the latest LTS and Nightly snapshot. Learn more.

Exact lookup

1. maybeCryptoError :: CryptoFailable a -> Maybe a

   cryptonite	Crypto.Error

   Transform a CryptoFailable to a Maybe

2. maybeTagText :: Tag str -> Maybe str

   tagsoup	Text.HTML.TagSoup

   Extract the string from within TagText, otherwise Nothing

3. maybeTagWarning :: Tag str -> Maybe str

   tagsoup	Text.HTML.TagSoup

   Extract the string from within TagWarning, otherwise Nothing

4. maybeToList :: Maybe a -> [a]

   strict	Data.Strict.Maybe

   Analogous to maybeToList in Data.Maybe.

5. maybeCodec :: ValueCodec input output -> ValueCodec (Maybe input) (Maybe output)

   autodocodec	Autodocodec

   Maybe codec This can be used to also allow null during decoding of a Maybe value. During decoding, also accept a null value as Nothing. During encoding, encode as usual.

   Example usage

   >>> toJSONVia (maybeCodec codec) (Just 'a')
   String "a"
   
   >>> toJSONVia (maybeCodec codec) (Nothing :: Maybe Char)
   Null
   

6. maybeCodec :: ValueCodec input output -> ValueCodec (Maybe input) (Maybe output)

   autodocodec	Autodocodec.Codec

   Maybe codec This can be used to also allow null during decoding of a Maybe value. During decoding, also accept a null value as Nothing. During encoding, encode as usual.

   Example usage

   >>> toJSONVia (maybeCodec codec) (Just 'a')
   String "a"
   
   >>> toJSONVia (maybeCodec codec) (Nothing :: Maybe Char)
   Null
   

7. maybeToLeft :: b -> Maybe a -> Either a b

   either	Data.Either.Combinators

   Maybe produce a Left, otherwise produce a Right.

   >>> maybeToLeft "default" (Just 12)
   Left 12
   

   >>> maybeToLeft "default" Nothing
   Right "default"
   

8. maybeToRight :: b -> Maybe a -> Either b a

   either	Data.Either.Combinators

   Maybe produce a Right, otherwise produce a Left.

   >>> maybeToRight "default" (Just 12)
   Right 12
   

   >>> maybeToRight "default" Nothing
   Left "default"
   

9. maybeAbort :: Exceptional e a -> Maybe e -> Exceptional e a

   explicit-exception	Control.Monad.Exception.Asynchronous.Lazy

   No documentation available.

10. maybeAbort :: Exceptional e a -> Maybe e -> Exceptional e a

    explicit-exception	Control.Monad.Exception.Asynchronous.Strict

    No documentation available.

Page 22 of many | Previous | Next