poly-control (empty) → 1.0.0
raw patch · 6 files changed
+314/−0 lines, 6 filesdep +basedep +lens
Dependencies added: base, lens
Files
- LICENSE +202/−0
- poly-control.cabal +35/−0
- src/Control/Applicative/Poly.hs +17/−0
- src/Control/Monad/Poly.hs +22/−0
- src/Control/Monad/Shuffle.hs +34/−0
- src/Control/Poly.hs +4/−0
+ LICENSE view
@@ -0,0 +1,202 @@++ Apache License+ Version 2.0, January 2004+ http://www.apache.org/licenses/++ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION++ 1. Definitions.++ "License" shall mean the terms and conditions for use, reproduction,+ and distribution as defined by Sections 1 through 9 of this document.++ "Licensor" shall mean the copyright owner or entity authorized by+ the copyright owner that is granting the License.++ "Legal Entity" shall mean the union of the acting entity and all+ other entities that control, are controlled by, or are under common+ control with that entity. 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+ poly-control.cabal view
@@ -0,0 +1,35 @@+name: poly-control+version: 1.0.0+cabal-version: >=1.10+build-type: Simple+license: Apache-2.0+license-file: LICENSE+copyright: Copyright (C) 2015 Wojciech Danilo+maintainer: Wojciech Danilo <wojciech.danilo@gmail.com>+stability: experimental+homepage: https://github.com/wdanilo/poly-control+bug-reports: https://github.com/wdanilo/poly-control/issues+synopsis: This package provides abstraction for polymorphic controls, like PolyMonads or PolyApplicatives.+category: Data+author: Wojciech Danilo++library+ exposed-modules:+ Control.Poly+ Control.Monad.Poly+ Control.Monad.Shuffle+ Control.Applicative.Poly+ build-depends:+ base >=4.6 && <4.9,+ lens >=4.13+ default-language: Haskell2010+ default-extensions: ConstraintKinds DataKinds DefaultSignatures+ DeriveDataTypeable DeriveFoldable DeriveFunctor DeriveGeneric+ DeriveTraversable DoAndIfThenElse EmptyDataDecls FlexibleContexts+ FlexibleInstances GeneralizedNewtypeDeriving InstanceSigs+ LambdaCase MultiParamTypeClasses OverloadedStrings+ StandaloneDeriving TemplateHaskell TupleSections TypeOperators+ ViewPatterns TypeFamilies+ hs-source-dirs: src+ ghc-options: -Wall -O2+
+ src/Control/Applicative/Poly.hs view
@@ -0,0 +1,17 @@+module Control.Applicative.Poly where++import Prelude+import Control.Applicative+++-- == Types ===++type family PolyBind (m :: * -> *) (n :: * -> *) :: * -> *+type MonoBind m = (PolyBind m m ~ m)++class PolyApplicative m n where (<<*>>) :: m (a -> b) -> n a -> PolyBind m n b+instance {-# OVERLAPPABLE #-} (MonoBind m, Applicative m) => PolyApplicative m m where (<<*>>) = (<*>)+++--(<<$>>) :: (Applicative m, PolyApplicative m n) => (a -> b) -> n a -> PolyBind m n b+--f <<$>> a = pure f <<*>> a
+ src/Control/Monad/Poly.hs view
@@ -0,0 +1,22 @@+{-# LANGUAGE UndecidableInstances #-}++module Control.Monad.Poly (module Control.Monad.Poly, module X) where++import Prelude+import Control.Applicative.Poly+import Control.Applicative.Poly as X (PolyBind, MonoBind)++-- === Types ===++class PolyApplicative m n => PolyMonad m n where (>>>=) :: m a -> (a -> n b) -> PolyBind m n b+instance {-# OVERLAPPABLE #-} (Monad m, MonoBind m, PolyApplicative m m) => PolyMonad m m where (>>>=) = (>>=)+++-- === Utils ===++polyBind :: PolyMonad m n => m a -> (a -> n b) -> PolyBind m n b+polyBind = (>>>=)++polyJoin :: PolyMonad m n => m (n a) -> PolyBind m n a+polyJoin = (>>>= id)+
+ src/Control/Monad/Shuffle.hs view
@@ -0,0 +1,34 @@+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE NoMonomorphismRestriction #-}++module Control.Monad.Shuffle where++import Control.Monad (join)+import Control.Monad.Poly+import Prelude++class Shuffle m1 m2 where+ shuffle :: m1 (m2 a) -> m2 (m1 a)++shuffleJoin :: (Shuffle n1 m2, PolyMonad m1 m2, PolyMonad n1 n2, Functor m1, Functor mout, mout ~ PolyBind m1 m2, nout ~ PolyBind n1 n2)+ => m1 (n1 (m2 (n2 a))) -> mout (nout a)+shuffleJoin = fmap polyJoin . polyJoin . fmap shuffle++infixl 1 $>>=+ +--infixl 1 >>>>=+--(>>>>=) = deepBind ++($>>=) :: (Monad m, Monad t, Functor t, Shuffle m t) => m a -> (a -> t (m b)) -> t (m b)+a $>>= b = return a `deepBind` b++deepBind :: (Monad m, Monad t, Functor t, Shuffle m t) => t (m a) -> (a -> t (m b)) -> t (m b)+deepBind tma f = tma >>= mf+ where mf ma = fmap join . shuffle $ do+ a <- ma+ return $ f a++instance (Monad m, Functor m) => Shuffle (Either e) m where+ shuffle = \case+ Left e -> return $ Left e+ Right a -> fmap Right a
+ src/Control/Poly.hs view
@@ -0,0 +1,4 @@+module Control.Poly (module X) where++import Control.Applicative.Poly as X+import Control.Monad.Poly as X