{-# LANGUAGE DataKinds #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeInType #-}
{-# LANGUAGE UndecidableInstances #-}

{-# OPTIONS_GHC -fno-warn-orphans #-}

-- | This module exports 'Hashable' instances for 'Some1', 'Some2', 'Some3' and
-- 'Some4' from "Exinst", provided situable 'Dict1', 'Dict2', 'Dict3'
-- and 'Dict4' instances are available.
--
-- See the README file in the @exinst@ package for more general documentation:
-- https://hackage.haskell.org/package/exinst#readme
module Exinst.Hashable () where

import Data.Hashable (Hashable(hashWithSalt))
import Data.Constraint
import Data.Kind (Type)
import Data.Singletons
import Prelude

import Exinst.Internal
import Exinst.Internal.Sum
import Exinst.Internal.Product

--------------------------------------------------------------------------------

-- | Some salt we add to hashes calculated in this module.
salt0 :: Int
salt0 :: Int
salt0 = Int
6700417

--------------------------------------------------------------------------------

instance forall k1 (f :: k1 -> Type)
  . ( SingKind k1
    , Hashable (Demote k1)
    , Dict1 Hashable f
    , Eq (Some1 f)
    ) => Hashable (Some1 f)
  where
    {-# INLINABLE hashWithSalt #-}
    hashWithSalt :: Int -> Some1 f -> Int
hashWithSalt Int
salt Some1 f
some1x = forall k1 (f1 :: k1 -> *) r.
Some1 f1
-> (forall (a1 :: k1). SingI a1 => Sing a1 -> f1 a1 -> r) -> r
withSome1Sing Some1 f
some1x forall a b. (a -> b) -> a -> b
$ \Sing a1
sa1 (f a1
x :: f a1) ->
       case forall k0 k1 (c :: k0 -> Constraint) (f1 :: k1 -> k0) (a1 :: k1).
Dict1 c f1 =>
Sing a1 -> Dict (c (f1 a1))
dict1 Sing a1
sa1 :: Dict (Hashable (f a1)) of
          Dict (Hashable (f a1))
Dict -> Int
salt forall a. Hashable a => Int -> a -> Int
`hashWithSalt` Int
salt0
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a1
sa1
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` f a1
x

instance forall k2 k1 (f :: k2 -> k1 -> Type)
  . ( SingKind k2
    , SingKind k1
    , Hashable (Demote k2)
    , Hashable (Demote k1)
    , Dict2 Hashable f
    , Eq (Some2 f)
    ) => Hashable (Some2 f)
  where
    {-# INLINABLE hashWithSalt #-}
    hashWithSalt :: Int -> Some2 f -> Int
hashWithSalt Int
salt Some2 f
some2x = forall k2 k1 (f2 :: k2 -> k1 -> *) r.
Some2 f2
-> (forall (a2 :: k2) (a1 :: k1).
    (SingI a2, SingI a1) =>
    Sing a2 -> Sing a1 -> f2 a2 a1 -> r)
-> r
withSome2Sing Some2 f
some2x forall a b. (a -> b) -> a -> b
$ \Sing a2
sa2 Sing a1
sa1 (f a2 a1
x :: f a2 a1) ->
       case forall k0 k2 k1 (c :: k0 -> Constraint) (f2 :: k2 -> k1 -> k0)
       (a2 :: k2) (a1 :: k1).
Dict2 c f2 =>
Sing a2 -> Sing a1 -> Dict (c (f2 a2 a1))
dict2 Sing a2
sa2 Sing a1
sa1 :: Dict (Hashable (f a2 a1)) of
          Dict (Hashable (f a2 a1))
Dict -> Int
salt forall a. Hashable a => Int -> a -> Int
`hashWithSalt` Int
salt0
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a2
sa2
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a1
sa1
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` f a2 a1
x

instance forall k3 k2 k1 (f :: k3 -> k2 -> k1 -> Type)
  . ( SingKind k3
    , SingKind k2
    , SingKind k1
    , Hashable (Demote k3)
    , Hashable (Demote k2)
    , Hashable (Demote k1)
    , Dict3 Hashable f
    , Eq (Some3 f)
    ) => Hashable (Some3 f)
  where
    {-# INLINABLE hashWithSalt #-}
    hashWithSalt :: Int -> Some3 f -> Int
hashWithSalt Int
salt Some3 f
some3x = forall k3 k2 k1 (f3 :: k3 -> k2 -> k1 -> *) r.
Some3 f3
-> (forall (a3 :: k3) (a2 :: k2) (a1 :: k1).
    (SingI a3, SingI a2, SingI a1) =>
    Sing a3 -> Sing a2 -> Sing a1 -> f3 a3 a2 a1 -> r)
-> r
withSome3Sing Some3 f
some3x forall a b. (a -> b) -> a -> b
$ \Sing a3
sa3 Sing a2
sa2 Sing a1
sa1 (f a3 a2 a1
x :: f a3 a2 a1) ->
       case forall k0 k3 k2 k1 (c :: k0 -> Constraint)
       (f3 :: k3 -> k2 -> k1 -> k0) (a3 :: k3) (a2 :: k2) (a1 :: k1).
Dict3 c f3 =>
Sing a3 -> Sing a2 -> Sing a1 -> Dict (c (f3 a3 a2 a1))
dict3 Sing a3
sa3 Sing a2
sa2 Sing a1
sa1 :: Dict (Hashable (f a3 a2 a1)) of
          Dict (Hashable (f a3 a2 a1))
Dict -> Int
salt forall a. Hashable a => Int -> a -> Int
`hashWithSalt` Int
salt0
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a3
sa3
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a2
sa2
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a1
sa1
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` f a3 a2 a1
x

instance forall k4 k3 k2 k1 (f :: k4 -> k3 -> k2 -> k1 -> Type)
  . ( SingKind k4
    , SingKind k3
    , SingKind k2
    , SingKind k1
    , Hashable (Demote k4)
    , Hashable (Demote k3)
    , Hashable (Demote k2)
    , Hashable (Demote k1)
    , Eq (Some4 f)
    , Dict4 Hashable f
    ) => Hashable (Some4 f)
  where
    {-# INLINABLE hashWithSalt #-}
    hashWithSalt :: Int -> Some4 f -> Int
hashWithSalt Int
salt Some4 f
some4x = forall k4 k3 k2 k1 (f4 :: k4 -> k3 -> k2 -> k1 -> *) r.
Some4 f4
-> (forall (a4 :: k4) (a3 :: k3) (a2 :: k2) (a1 :: k1).
    (SingI a4, SingI a3, SingI a2, SingI a1) =>
    Sing a4 -> Sing a3 -> Sing a2 -> Sing a1 -> f4 a4 a3 a2 a1 -> r)
-> r
withSome4Sing Some4 f
some4x forall a b. (a -> b) -> a -> b
$ \Sing a4
sa4 Sing a3
sa3 Sing a2
sa2 Sing a1
sa1 (f a4 a3 a2 a1
x :: f a4 a3 a2 a1) ->
       case forall k0 k4 k3 k2 k1 (c :: k0 -> Constraint)
       (f4 :: k4 -> k3 -> k2 -> k1 -> k0) (a4 :: k4) (a3 :: k3) (a2 :: k2)
       (a1 :: k1).
Dict4 c f4 =>
Sing a4
-> Sing a3 -> Sing a2 -> Sing a1 -> Dict (c (f4 a4 a3 a2 a1))
dict4 Sing a4
sa4 Sing a3
sa3 Sing a2
sa2 Sing a1
sa1 :: Dict (Hashable (f a4 a3 a2 a1)) of
          Dict (Hashable (f a4 a3 a2 a1))
Dict -> Int
salt forall a. Hashable a => Int -> a -> Int
`hashWithSalt` Int
salt0
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a4
sa4
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a3
sa3
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a2
sa2
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` forall k (a :: k). SingKind k => Sing a -> Demote k
fromSing Sing a1
sa1
                       forall a. Hashable a => Int -> a -> Int
`hashWithSalt` f a4 a3 a2 a1
x

--------------------------------------------------------------------------------

instance (Hashable (l a1), Hashable (r a1)) => Hashable (S1 l r a1)
instance (Hashable (l a2 a1), Hashable (r a2 a1)) => Hashable (S2 l r a2 a1)
instance (Hashable (l a3 a2 a1), Hashable (r a3 a2 a1)) => Hashable (S3 l r a3 a2 a1)
instance (Hashable (l a4 a3 a2 a1), Hashable (r a4 a3 a2 a1)) => Hashable (S4 l r a4 a3 a2 a1)

--------------------------------------------------------------------------------

instance (Hashable (l a1), Hashable (r a1)) => Hashable (P1 l r a1)
instance (Hashable (l a2 a1), Hashable (r a2 a1)) => Hashable (P2 l r a2 a1)
instance (Hashable (l a3 a2 a1), Hashable (r a3 a2 a1)) => Hashable (P3 l r a3 a2 a1)
instance (Hashable (l a4 a3 a2 a1), Hashable (r a4 a3 a2 a1)) => Hashable (P4 l r a4 a3 a2 a1)