-- This Source Code Form is subject to the terms of the Mozilla Public
-- License, v. 2.0. If a copy of the MPL was not distributed with this
-- file, You can obtain one at https://mozilla.org/MPL/2.0/.

module Control.Effect.Interpreter.Heftia.Coroutine where

import Control.Effect.Hefty (Eff, interpretK)
import Control.Monad.Freer (MonadFreer)
import Data.Effect.Coroutine (LYield, Status (Coroutine, Done), Yield (Yield))
import Data.Hefty.Union (Union)

runCoroutine ::
    forall a b r er fr u c.
    (MonadFreer c fr, Union u, c (Eff u fr '[] er)) =>
    Eff u fr '[] (LYield a b ': er) r ->
    Eff u fr '[] er (Status (Eff u fr '[] er) a b r)
runCoroutine :: forall a b r (er :: [SigClass]) (fr :: SigClass)
       (u :: [SigClass] -> SigClass) (c :: (* -> *) -> Constraint).
(MonadFreer c fr, Union u, c (Eff u fr '[] er)) =>
Eff u fr '[] (LYield a b : er) r
-> Eff u fr '[] er (Status (Eff u fr '[] er) a b r)
runCoroutine = forall (e :: SigClass) (rs :: [SigClass]) r a (ehs :: [SigClass])
       (fr :: SigClass) (u :: [SigClass] -> SigClass)
       (c :: (* -> *) -> Constraint).
(MonadFreer c fr, Union u, HeadIns e, c (Eff u fr ehs rs)) =>
(a -> Eff u fr ehs rs r)
-> (forall x.
    (x -> Eff u fr ehs rs r)
    -> UnliftIfSingle e x -> Eff u fr ehs rs r)
-> Eff u fr '[] (e : rs) a
-> Eff u fr ehs rs r
interpretK (forall (f :: * -> *) a. Applicative f => a -> f a
pure forall b c a. (b -> c) -> (a -> b) -> a -> c
. forall (f :: * -> *) a b r. r -> Status f a b r
Done) (\x -> Eff u fr '[] er (Status (Eff u fr '[] er) a b r)
kk (Yield a
a) -> forall (f :: * -> *) a. Applicative f => a -> f a
pure forall a b. (a -> b) -> a -> b
$ forall (f :: * -> *) a b r.
a -> (b -> f (Status f a b r)) -> Status f a b r
Coroutine a
a x -> Eff u fr '[] er (Status (Eff u fr '[] er) a b r)
kk)