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Within LTS Haskell 24.52 (ghc-9.10.3)
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serialise Codec.Serialise.Decoding No documentation available.
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serialise Codec.Serialise.Decoding Decode the length of a map.
decodeMapLenIndef :: Decoder s ()serialise Codec.Serialise.Decoding Decode a token marking the beginning of a map of indefinite length.
decodeMapLenOrIndef :: Decoder s (Maybe Int)serialise Codec.Serialise.Decoding Attempt to decode a token for the length of a finite, known map, or an indefinite map. If Nothing is returned, then an indefinite length map occurs afterwords. If Just x is returned, then a map of length x is encoded.
TkMapBegin :: Tokens -> Tokensserialise Codec.Serialise.Encoding No documentation available.
TkMapLen :: Word -> Tokens -> Tokensserialise Codec.Serialise.Encoding No documentation available.
encodeMapLen :: Word -> Encodingserialise Codec.Serialise.Encoding Encode the length of a Map, used to indicate that the following tokens represent the map values.
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serialise Codec.Serialise.Encoding Encode a token specifying that this is the beginning of an indefinite map of unknown size. Tokens representing the map are expected afterwords, followed by a break token (see encodeBreak) when the map has ended.
bimap :: Bifunctor p => (a -> b) -> (c -> d) -> p a c -> p b dstreaming Streaming Map over both arguments at the same time.
bimap f g ≡ first f . second g
Examples
>>> bimap toUpper (+1) ('j', 3) ('J',4)>>> bimap toUpper (+1) (Left 'j') Left 'J'
>>> bimap toUpper (+1) (Right 3) Right 4
foldMap :: (Monad m, Monoid w) => (a -> w) -> Stream (Of a) m r -> m (Of w r)streaming Streaming.Prelude Map each element of the stream to a monoid, and take the monoidal sum of the results.
>>> S.foldMap Sum $ S.take 2 (S.stdinLn) 1<Enter> 2<Enter> 3<Enter> Sum {getSum = 6} :> ()