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Within LTS Haskell 24.34 (ghc-9.10.3)
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mapMonotonic :: (Key -> Key) -> Word64Set -> Word64Setghc-lib-parser GHC.Data.Word64Set The mapMonotonic f s == map f s, but works only when f is strictly increasing. The precondition is not checked. Semi-formally, we have:
and [x < y ==> f x < f y | x <- ls, y <- ls] ==> mapMonotonic f s == map f s where ls = toList s
mapMonotonic :: (Key -> Key) -> Word64Set -> Word64Setghc-lib-parser GHC.Data.Word64Set.Internal The mapMonotonic f s == map f s, but works only when f is strictly increasing. The precondition is not checked. Semi-formally, we have:
and [x < y ==> f x < f y | x <- ls, y <- ls] ==> mapMonotonic f s == map f s where ls = toList s
mapPlugins :: Plugins -> (Plugin -> [CommandLineOption] -> a) -> [a]ghc-lib-parser GHC.Driver.Plugins No documentation available.
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ghc-lib-parser GHC.Hs.Decls Map over the via type if dealing with ViaStrategy. Otherwise, return the DerivStrategy unchanged.
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ghc-lib-parser GHC.Hs.Type No documentation available.
mapLocA :: NoAnn ann => (a -> b) -> GenLocated SrcSpan a -> GenLocated (EpAnn ann) bghc-lib-parser GHC.Parser.Annotation No documentation available.
mapM :: (Traversable t, Monad m) => (a -> m b) -> t a -> m (t b)ghc-lib-parser GHC.Prelude.Basic Map each element of a structure to a monadic action, evaluate these actions from left to right, and collect the results. For a version that ignores the results see mapM_.
Examples
mapM is literally a traverse with a type signature restricted to Monad. Its implementation may be more efficient due to additional power of Monad.mapM_ :: (Foldable t, Monad m) => (a -> m b) -> t a -> m ()ghc-lib-parser GHC.Prelude.Basic Map each element of a structure to a monadic action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results see mapM. mapM_ is just like traverse_, but specialised to monadic actions.
mappend :: Monoid a => a -> a -> aghc-lib-parser GHC.Prelude.Basic An associative operation NOTE: This method is redundant and has the default implementation mappend = (<>) since base-4.11.0.0. Should it be implemented manually, since mappend is a synonym for (<>), it is expected that the two functions are defined the same way. In a future GHC release mappend will be removed from Monoid.
mapDecoratedSDoc :: (SDoc -> SDoc) -> DecoratedSDoc -> DecoratedSDocghc-lib-parser GHC.Types.Error Apply a transformation function to all elements of a DecoratedSDoc.