| Copyright | (c) 2016 Allele Dev; 2017 Ixperta Solutions s.r.o.; 2017 Alexis King; 2024 Sayo Koyoneda |
|---|---|
| License | MPL-2.0 (see the LICENSE file) AND BSD-3-Clause (see the LICENSE.BSD3 file) |
| Maintainer | ymdfield@outlook.jp |
| Safe Haskell | None |
| Language | GHC2021 |
Control.Monad.Hefty.Interpret.State
Description
This module provides an ad-hoc specialized version of
Control.Monad.Hefty.Interpret to accelerate interpretations that have a
single state type s, especially for effects like State or
Writer.
Synopsis
- type StateInterpreter s (e :: Type -> Type) (m :: Type -> Type) ans = forall x. e x -> s -> (s -> x -> m ans) -> m ans
- type StateElaborator s (e :: (Type -> Type) -> Type -> Type) (m :: Type -> Type) ans = StateInterpreter s (e m) m ans
- interpretStateBy :: forall s (e :: Type -> Type) (ef :: [EffectF]) ans a. s -> (s -> a -> Eff ('[] :: [EffectH]) ef ans) -> StateInterpreter s e (Eff ('[] :: [EffectH]) ef) ans -> Eff ('[] :: [EffectH]) (e ': ef) a -> Eff ('[] :: [EffectH]) ef ans
- reinterpretStateBy :: forall s (e :: Type -> Type) (ef' :: [EffectF]) (ef :: [Type -> Type]) ans a. IsSuffixOf ef ef' => s -> (s -> a -> Eff ('[] :: [EffectH]) ef' ans) -> StateInterpreter s e (Eff ('[] :: [EffectH]) ef') ans -> Eff ('[] :: [EffectH]) (e ': ef) a -> Eff ('[] :: [EffectH]) ef' ans
- interpretStateRecWith :: forall s e (ef :: [EffectF]) (eh :: [EffectH]) a. s -> (forall ans x. e x -> s -> (s -> x -> Eff eh ef ans) -> Eff eh ef ans) -> Eff eh (e ': ef) a -> Eff eh ef a
- reinterpretStateRecWith :: forall s e (ef' :: [EffectF]) (ef :: [EffectF]) (eh :: [EffectH]) a. IsSuffixOf ef ef' => s -> (forall ans x. e x -> s -> (s -> x -> Eff eh ef' ans) -> Eff eh ef' ans) -> Eff eh (e ': ef) a -> Eff eh ef' a
- interposeStateBy :: forall s (e :: EffectF) (ef :: [EffectF]) ans a. e <| ef => s -> (s -> a -> Eff ('[] :: [EffectH]) ef ans) -> StateInterpreter s e (Eff ('[] :: [EffectH]) ef) ans -> Eff ('[] :: [EffectH]) ef a -> Eff ('[] :: [EffectH]) ef ans
- iterStateAllEffHFBy :: forall s (eh :: [EffectH]) (ef :: [EffectF]) m ans a. Monad m => s -> (s -> a -> m ans) -> StateInterpreter s (UnionH eh (Eff eh ef)) m ans -> StateInterpreter s (Union ef) m ans -> Eff eh ef a -> m ans
Documentation
type StateInterpreter s (e :: Type -> Type) (m :: Type -> Type) ans = forall x. e x -> s -> (s -> x -> m ans) -> m ans Source #
An ad-hoc stateful version of Interpreter for performance.
type StateElaborator s (e :: (Type -> Type) -> Type -> Type) (m :: Type -> Type) ans = StateInterpreter s (e m) m ans Source #
An ad-hoc stateful version of Elaborator for performance.
Interpretation functions
interpretStateBy :: forall s (e :: Type -> Type) (ef :: [EffectF]) ans a. s -> (s -> a -> Eff ('[] :: [EffectH]) ef ans) -> StateInterpreter s e (Eff ('[] :: [EffectH]) ef) ans -> Eff ('[] :: [EffectH]) (e ': ef) a -> Eff ('[] :: [EffectH]) ef ans Source #
reinterpretStateBy :: forall s (e :: Type -> Type) (ef' :: [EffectF]) (ef :: [Type -> Type]) ans a. IsSuffixOf ef ef' => s -> (s -> a -> Eff ('[] :: [EffectH]) ef' ans) -> StateInterpreter s e (Eff ('[] :: [EffectH]) ef') ans -> Eff ('[] :: [EffectH]) (e ': ef) a -> Eff ('[] :: [EffectH]) ef' ans Source #
interpretStateRecWith :: forall s e (ef :: [EffectF]) (eh :: [EffectH]) a. s -> (forall ans x. e x -> s -> (s -> x -> Eff eh ef ans) -> Eff eh ef ans) -> Eff eh (e ': ef) a -> Eff eh ef a Source #
reinterpretStateRecWith :: forall s e (ef' :: [EffectF]) (ef :: [EffectF]) (eh :: [EffectH]) a. IsSuffixOf ef ef' => s -> (forall ans x. e x -> s -> (s -> x -> Eff eh ef' ans) -> Eff eh ef' ans) -> Eff eh (e ': ef) a -> Eff eh ef' a Source #
Interposition functions
interposeStateBy :: forall s (e :: EffectF) (ef :: [EffectF]) ans a. e <| ef => s -> (s -> a -> Eff ('[] :: [EffectH]) ef ans) -> StateInterpreter s e (Eff ('[] :: [EffectH]) ef) ans -> Eff ('[] :: [EffectH]) ef a -> Eff ('[] :: [EffectH]) ef ans Source #
Transformation to monads
iterStateAllEffHFBy :: forall s (eh :: [EffectH]) (ef :: [EffectF]) m ans a. Monad m => s -> (s -> a -> m ans) -> StateInterpreter s (UnionH eh (Eff eh ef)) m ans -> StateInterpreter s (Union ef) m ans -> Eff eh ef a -> m ans Source #