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Within LTS Haskell 24.6 (ghc-9.10.2)
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mapMaybeMaybeT :: (a -> Maybe b) -> TreeT (MaybeT Identity) a -> TreeT (MaybeT Identity) bhedgehog Hedgehog.Internal.Tree No documentation available.
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hedgehog Hedgehog.Internal.Tree No documentation available.
mapTreeT :: (m (NodeT m a) -> m (NodeT m a)) -> TreeT m a -> TreeT m ahedgehog Hedgehog.Internal.Tree Map between TreeT computations.
mapSplitter :: (b -> a) -> Splitter a -> Splitter bsplit Data.List.Split Split over a different type of element by performing a preprocessing step.
>>> split (mapSplitter snd $ oneOf "-_") $ zip [0..] "a-bc_d" [[(0,'a')],[(1,'-')],[(2,'b'),(3,'c')],[(4,'_')],[(5,'d')]]
>>> import Data.Char (toLower) >>> split (mapSplitter toLower $ dropDelims $ whenElt (== 'x')) "abXcxd" ["ab","c","d"]
mapSplitter :: (b -> a) -> Splitter a -> Splitter bsplit Data.List.Split.Internals Split over a different type of element by performing a preprocessing step.
>>> split (mapSplitter snd $ oneOf "-_") $ zip [0..] "a-bc_d" [[(0,'a')],[(1,'-')],[(2,'b'),(3,'c')],[(4,'_')],[(5,'d')]]
>>> import Data.Char (toLower) >>> split (mapSplitter toLower $ dropDelims $ whenElt (== 'x')) "abXcxd" ["ab","c","d"]
mapLeafBenchmarks :: ([String] -> Benchmark -> Benchmark) -> Benchmark -> Benchmarktasty-bench Test.Tasty.Bench Map leaf benchmarks (bench, not bgroup) with a provided function, which has an access to leaf's reversed path. This helper is useful for bulk application of bcompare. See also locateBenchmark. Real world examples:
map' :: (Mapping p, Functor f) => p a b -> p (f a) (f b)profunctors Data.Profunctor Laws:
map' . rmap f ≡ rmap (fmap f) . map' map' . map' ≡ dimap Compose getCompose . map' dimap Identity runIdentity . map' ≡ id
map' :: (Mapping p, Functor f) => p a b -> p (f a) (f b)profunctors Data.Profunctor.Mapping Laws:
map' . rmap f ≡ rmap (fmap f) . map' map' . map' ≡ dimap Compose getCompose . map' dimap Identity runIdentity . map' ≡ id
mapAccumLOf :: LensLike (State acc) s t a b -> (acc -> a -> (acc, b)) -> acc -> s -> (acc, t)microlens Lens.Micro This generalizes mapAccumL to an arbitrary Traversal. (Note that it doesn't work on folds, only traversals.)
mapAccumL ≡ mapAccumLOf traverse
mapMOf :: LensLike (WrappedMonad m) s t a b -> (a -> m b) -> s -> m tmicrolens Lens.Micro Map each element of a structure targeted by a Lens to a monadic action, evaluate these actions from left to right, and collect the results.
>>> mapMOf both (\x -> [x, x + 1]) (1,3) [(1,3),(1,4),(2,3),(2,4)]