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Refactor Data.Profunctor.Mapping

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This commit is contained in:
Kiana Sheibani 2023-03-30 13:43:33 -04:00
parent 68ef29160f
commit 5b55d39ab5
Signed by: toki
GPG key ID: 6CB106C25E86A9F7
1 changed files with 5 additions and 11 deletions
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16
Data/Profunctor/Mapping.idr
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@ -9,6 +9,9 @@ import Data.Profunctor.Traversing
%default total
functor : Functor (\a => (a -> b) -> t)
functor = MkFunctor (\f => (. (. f)))
------------------------------------------------------------------------------
-- Mapping interface
------------------------------------------------------------------------------
@ -28,9 +31,6 @@ interface (Traversing p, Closed p) => Mapping p where
roam : ((a -> b) -> s -> t) -> p a b -> p s t
roam f = dimap (flip f) ($ id) . map' @{%search} @{functor}
where
functor : Functor (\a => (a -> b) -> t)
functor = MkFunctor (\f => (. (. f)))
------------------------------------------------------------------------------
@ -95,14 +95,11 @@ Profunctor p => Closed (CofreeMapping p) where
roamCofree : Profunctor p => ((a -> b) -> s -> t) -> CofreeMapping p a b -> CofreeMapping p s t
roamCofree f (MkCFM p) = MkCFM $ dimap (map (flip f)) (map ($ id)) $
p @{Compose @{%search} @{functor}}
where
functor : Functor (\a => (a -> b) -> t)
functor = MkFunctor (\f => (. (. f)))
public export
Profunctor p => Traversing (CofreeMapping p) where
traverse' (MkCFM p) = MkCFM (p @{Compose})
wander f = roamCofree $ (runIdentity .) . f . (Id .)
wander f = roamCofree $ f @{MkApplicative @{MkFunctor id} id id}
public export
Profunctor p => Mapping (CofreeMapping p) where
@ -154,14 +151,11 @@ Closed (FreeMapping p) where
roamFree : ((a -> b) -> s -> t) -> FreeMapping p a b -> FreeMapping p s t
roamFree f (MkFM l m r) = MkFM @{Compose @{functor}} (($ id) . map @{functor} l) m (map @{functor} r . flip f)
where
functor : Functor (\a => (a -> b) -> t)
functor = MkFunctor (\f => (. (. f)))
public export
Traversing (FreeMapping p) where
traverse' (MkFM l m r) = MkFM @{Compose} (map l) m (map r)
wander f = roamFree $ (runIdentity .) . f . (Id .)
wander f = roamFree $ f @{MkApplicative @{MkFunctor id} id id}
public export
Mapping (FreeMapping p) where