Example.hs

{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE MagicHash #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE NoImplicitPrelude #-}
{-# LANGUAGE TypeApplications #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE UnboxedTuples #-}
{-# LANGUAGE UndecidableInstances #-}

module Example
    ( Example.BOOL(..)
    )
  where

import qualified HsBindgen.Runtime.HasCField as HasCField
import qualified HsBindgen.Runtime.Marshal as Marshal
import qualified HsBindgen.Runtime.Support as BG
import qualified HsBindgen.Runtime.Support.CompatHasField as BG.CompatHasField
import Prelude (Bounded, Enum, Eq, Integral, Num, Ord, Read, Real, Show, type (~))

{-| __C declaration:__ @macro BOOL@

    __defined at:__ @macros\/reparse\/gnu_attributes.h 2:9@

    __exported by:__ @macros\/reparse\/gnu_attributes.h@
-}
newtype BOOL = BOOL
  { unwrapBOOL :: BG.CInt
  }
  deriving stock (Eq, BG.Generic, Ord, Read, Show)
  deriving newtype
    ( BG.Bitfield
    , BG.Bits
    , Bounded
    , Enum
    , BG.FiniteBits
    , BG.HasFFIType
    , Integral
    , BG.Ix
    , Num
    , BG.Prim
    , Marshal.ReadRaw
    , Real
    , Marshal.StaticSize
    , BG.Storable
    , Marshal.WriteRaw
    )

instance (ty ~ BG.CInt) => BG.CompatHasField.HasField "unwrapBOOL" BOOL ty where

  hasField =
    \x0 ->
      (\y1 ->
         BOOL {unwrapBOOL = y1}, BG.getField @"unwrapBOOL" x0)

instance ( ty ~ BG.CInt
         ) => BG.HasField "unwrapBOOL" (BG.Ptr BOOL) (BG.Ptr ty) where

  getField = HasCField.fromPtr (BG.Proxy @"unwrapBOOL")

instance HasCField.HasCField BOOL "unwrapBOOL" where

  type CFieldType BOOL "unwrapBOOL" = BG.CInt

  offset# = \_ -> \_ -> 0