{-# LANGUAGE TypeApplications #-}


-- | Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
-- License    : LGPL-2.1
-- Maintainer : Iñaki García Etxebarria
-- 
-- The t'GI.Pango.Structs.AttrClass.AttrClass' structure stores the type and operations for
-- a particular type of attribute. The functions in this structure should
-- not be called directly. Instead, one should use the wrapper functions
-- provided for t'GI.Pango.Structs.Attribute.Attribute'.

#if (MIN_VERSION_haskell_gi_overloading(1,0,0) && !defined(__HADDOCK_VERSION__))
#define ENABLE_OVERLOADING
#endif

module GI.Pango.Structs.AttrClass
    ( 

-- * Exported types
    AttrClass(..)                           ,
    newZeroAttrClass                        ,
    noAttrClass                             ,


 -- * Methods
-- ** Overloaded methods #method:Overloaded methods#

#if defined(ENABLE_OVERLOADING)
    ResolveAttrClassMethod                  ,
#endif




 -- * Properties
-- ** destroy #attr:destroy#
-- | /No description available in the introspection data./

#if defined(ENABLE_OVERLOADING)
    attrClass_destroy                       ,
#endif
    clearAttrClassDestroy                   ,
    getAttrClassDestroy                     ,
    setAttrClassDestroy                     ,


-- ** equal #attr:equal#
-- | /No description available in the introspection data./

#if defined(ENABLE_OVERLOADING)
    attrClass_equal                         ,
#endif
    clearAttrClassEqual                     ,
    getAttrClassEqual                       ,
    setAttrClassEqual                       ,


-- ** type #attr:type#
-- | the type ID for this attribute

#if defined(ENABLE_OVERLOADING)
    attrClass_type                          ,
#endif
    getAttrClassType                        ,
    setAttrClassType                        ,




    ) where

import Data.GI.Base.ShortPrelude
import qualified Data.GI.Base.ShortPrelude as SP
import qualified Data.GI.Base.Overloading as O
import qualified Prelude as P

import qualified Data.GI.Base.Attributes as GI.Attributes
import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
import qualified Data.GI.Base.GClosure as B.GClosure
import qualified Data.GI.Base.GError as B.GError
import qualified Data.GI.Base.GVariant as B.GVariant
import qualified Data.GI.Base.GValue as B.GValue
import qualified Data.GI.Base.GParamSpec as B.GParamSpec
import qualified Data.GI.Base.CallStack as B.CallStack
import qualified Data.GI.Base.Properties as B.Properties
import qualified Data.GI.Base.Signals as B.Signals
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map
import qualified Foreign.Ptr as FP
import qualified GHC.OverloadedLabels as OL

import qualified GI.Pango.Callbacks as Pango.Callbacks
import {-# SOURCE #-} qualified GI.Pango.Enums as Pango.Enums

-- | Memory-managed wrapper type.
newtype AttrClass = AttrClass (ManagedPtr AttrClass)
    deriving (AttrClass -> AttrClass -> Bool
(AttrClass -> AttrClass -> Bool)
-> (AttrClass -> AttrClass -> Bool) -> Eq AttrClass
forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
/= :: AttrClass -> AttrClass -> Bool
$c/= :: AttrClass -> AttrClass -> Bool
== :: AttrClass -> AttrClass -> Bool
$c== :: AttrClass -> AttrClass -> Bool
Eq)
instance WrappedPtr AttrClass where
    wrappedPtrCalloc :: IO (Ptr AttrClass)
wrappedPtrCalloc = Int -> IO (Ptr AttrClass)
forall a. Int -> IO (Ptr a)
callocBytes 32
    wrappedPtrCopy :: AttrClass -> IO AttrClass
wrappedPtrCopy = \p :: AttrClass
p -> AttrClass -> (Ptr AttrClass -> IO AttrClass) -> IO AttrClass
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
p (Int -> Ptr AttrClass -> IO (Ptr AttrClass)
forall a. WrappedPtr a => Int -> Ptr a -> IO (Ptr a)
copyBytes 32 (Ptr AttrClass -> IO (Ptr AttrClass))
-> (Ptr AttrClass -> IO AttrClass) -> Ptr AttrClass -> IO AttrClass
forall (m :: * -> *) a b c.
Monad m =>
(a -> m b) -> (b -> m c) -> a -> m c
>=> (ManagedPtr AttrClass -> AttrClass)
-> Ptr AttrClass -> IO AttrClass
forall a.
(HasCallStack, WrappedPtr a) =>
(ManagedPtr a -> a) -> Ptr a -> IO a
wrapPtr ManagedPtr AttrClass -> AttrClass
AttrClass)
    wrappedPtrFree :: Maybe (GDestroyNotify AttrClass)
wrappedPtrFree = GDestroyNotify AttrClass -> Maybe (GDestroyNotify AttrClass)
forall a. a -> Maybe a
Just GDestroyNotify AttrClass
forall a. FunPtr (Ptr a -> IO ())
ptr_to_g_free

-- | Construct a `AttrClass` struct initialized to zero.
newZeroAttrClass :: MonadIO m => m AttrClass
newZeroAttrClass :: m AttrClass
newZeroAttrClass = IO AttrClass -> m AttrClass
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO AttrClass -> m AttrClass) -> IO AttrClass -> m AttrClass
forall a b. (a -> b) -> a -> b
$ IO (Ptr AttrClass)
forall a. WrappedPtr a => IO (Ptr a)
wrappedPtrCalloc IO (Ptr AttrClass)
-> (Ptr AttrClass -> IO AttrClass) -> IO AttrClass
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= (ManagedPtr AttrClass -> AttrClass)
-> Ptr AttrClass -> IO AttrClass
forall a.
(HasCallStack, WrappedPtr a) =>
(ManagedPtr a -> a) -> Ptr a -> IO a
wrapPtr ManagedPtr AttrClass -> AttrClass
AttrClass

instance tag ~ 'AttrSet => Constructible AttrClass tag where
    new :: (ManagedPtr AttrClass -> AttrClass)
-> [AttrOp AttrClass tag] -> m AttrClass
new _ attrs :: [AttrOp AttrClass tag]
attrs = do
        AttrClass
o <- m AttrClass
forall (m :: * -> *). MonadIO m => m AttrClass
newZeroAttrClass
        AttrClass -> [AttrOp AttrClass 'AttrSet] -> m ()
forall o (m :: * -> *).
MonadIO m =>
o -> [AttrOp o 'AttrSet] -> m ()
GI.Attributes.set AttrClass
o [AttrOp AttrClass tag]
[AttrOp AttrClass 'AttrSet]
attrs
        AttrClass -> m AttrClass
forall (m :: * -> *) a. Monad m => a -> m a
return AttrClass
o


-- | A convenience alias for `Nothing` :: `Maybe` `AttrClass`.
noAttrClass :: Maybe AttrClass
noAttrClass :: Maybe AttrClass
noAttrClass = Maybe AttrClass
forall a. Maybe a
Nothing

-- | Get the value of the “@type@” field.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.get' attrClass #type
-- @
getAttrClassType :: MonadIO m => AttrClass -> m Pango.Enums.AttrType
getAttrClassType :: AttrClass -> m AttrType
getAttrClassType s :: AttrClass
s = IO AttrType -> m AttrType
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO AttrType -> m AttrType) -> IO AttrType -> m AttrType
forall a b. (a -> b) -> a -> b
$ AttrClass -> (Ptr AttrClass -> IO AttrType) -> IO AttrType
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO AttrType) -> IO AttrType)
-> (Ptr AttrClass -> IO AttrType) -> IO AttrType
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    CUInt
val <- Ptr CUInt -> IO CUInt
forall a. Storable a => Ptr a -> IO a
peek (Ptr AttrClass
ptr Ptr AttrClass -> Int -> Ptr CUInt
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 0) :: IO CUInt
    let val' :: AttrType
val' = (Int -> AttrType
forall a. Enum a => Int -> a
toEnum (Int -> AttrType) -> (CUInt -> Int) -> CUInt -> AttrType
forall b c a. (b -> c) -> (a -> b) -> a -> c
. CUInt -> Int
forall a b. (Integral a, Num b) => a -> b
fromIntegral) CUInt
val
    AttrType -> IO AttrType
forall (m :: * -> *) a. Monad m => a -> m a
return AttrType
val'

-- | Set the value of the “@type@” field.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.set' attrClass [ #type 'Data.GI.Base.Attributes.:=' value ]
-- @
setAttrClassType :: MonadIO m => AttrClass -> Pango.Enums.AttrType -> m ()
setAttrClassType :: AttrClass -> AttrType -> m ()
setAttrClassType s :: AttrClass
s val :: AttrType
val = IO () -> m ()
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ AttrClass -> (Ptr AttrClass -> IO ()) -> IO ()
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO ()) -> IO ())
-> (Ptr AttrClass -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    let val' :: CUInt
val' = (Int -> CUInt
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Int -> CUInt) -> (AttrType -> Int) -> AttrType -> CUInt
forall b c a. (b -> c) -> (a -> b) -> a -> c
. AttrType -> Int
forall a. Enum a => a -> Int
fromEnum) AttrType
val
    Ptr CUInt -> CUInt -> IO ()
forall a. Storable a => Ptr a -> a -> IO ()
poke (Ptr AttrClass
ptr Ptr AttrClass -> Int -> Ptr CUInt
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 0) (CUInt
val' :: CUInt)

#if defined(ENABLE_OVERLOADING)
data AttrClassTypeFieldInfo
instance AttrInfo AttrClassTypeFieldInfo where
    type AttrBaseTypeConstraint AttrClassTypeFieldInfo = (~) AttrClass
    type AttrAllowedOps AttrClassTypeFieldInfo = '[ 'AttrSet, 'AttrGet]
    type AttrSetTypeConstraint AttrClassTypeFieldInfo = (~) Pango.Enums.AttrType
    type AttrTransferTypeConstraint AttrClassTypeFieldInfo = (~)Pango.Enums.AttrType
    type AttrTransferType AttrClassTypeFieldInfo = Pango.Enums.AttrType
    type AttrGetType AttrClassTypeFieldInfo = Pango.Enums.AttrType
    type AttrLabel AttrClassTypeFieldInfo = "type"
    type AttrOrigin AttrClassTypeFieldInfo = AttrClass
    attrGet = getAttrClassType
    attrSet = setAttrClassType
    attrConstruct = undefined
    attrClear = undefined
    attrTransfer _ v = do
        return v

attrClass_type :: AttrLabelProxy "type"
attrClass_type = AttrLabelProxy

#endif


-- | Get the value of the “@destroy@” field.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.get' attrClass #destroy
-- @
getAttrClassDestroy :: MonadIO m => AttrClass -> m (Maybe Pango.Callbacks.AttrClassDestroyFieldCallback)
getAttrClassDestroy :: AttrClass -> m (Maybe AttrClassDestroyFieldCallback)
getAttrClassDestroy s :: AttrClass
s = IO (Maybe AttrClassDestroyFieldCallback)
-> m (Maybe AttrClassDestroyFieldCallback)
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (Maybe AttrClassDestroyFieldCallback)
 -> m (Maybe AttrClassDestroyFieldCallback))
-> IO (Maybe AttrClassDestroyFieldCallback)
-> m (Maybe AttrClassDestroyFieldCallback)
forall a b. (a -> b) -> a -> b
$ AttrClass
-> (Ptr AttrClass -> IO (Maybe AttrClassDestroyFieldCallback))
-> IO (Maybe AttrClassDestroyFieldCallback)
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO (Maybe AttrClassDestroyFieldCallback))
 -> IO (Maybe AttrClassDestroyFieldCallback))
-> (Ptr AttrClass -> IO (Maybe AttrClassDestroyFieldCallback))
-> IO (Maybe AttrClassDestroyFieldCallback)
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    FunPtr C_AttrClassDestroyFieldCallback
val <- Ptr (FunPtr C_AttrClassDestroyFieldCallback)
-> IO (FunPtr C_AttrClassDestroyFieldCallback)
forall a. Storable a => Ptr a -> IO a
peek (Ptr AttrClass
ptr Ptr AttrClass
-> Int -> Ptr (FunPtr C_AttrClassDestroyFieldCallback)
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 16) :: IO (FunPtr Pango.Callbacks.C_AttrClassDestroyFieldCallback)
    Maybe AttrClassDestroyFieldCallback
result <- FunPtr C_AttrClassDestroyFieldCallback
-> (FunPtr C_AttrClassDestroyFieldCallback
    -> IO AttrClassDestroyFieldCallback)
-> IO (Maybe AttrClassDestroyFieldCallback)
forall a b. FunPtr a -> (FunPtr a -> IO b) -> IO (Maybe b)
SP.convertFunPtrIfNonNull FunPtr C_AttrClassDestroyFieldCallback
val ((FunPtr C_AttrClassDestroyFieldCallback
  -> IO AttrClassDestroyFieldCallback)
 -> IO (Maybe AttrClassDestroyFieldCallback))
-> (FunPtr C_AttrClassDestroyFieldCallback
    -> IO AttrClassDestroyFieldCallback)
-> IO (Maybe AttrClassDestroyFieldCallback)
forall a b. (a -> b) -> a -> b
$ \val' :: FunPtr C_AttrClassDestroyFieldCallback
val' -> do
        let val'' :: AttrClassDestroyFieldCallback
val'' = FunPtr C_AttrClassDestroyFieldCallback
-> AttrClassDestroyFieldCallback
forall (m :: * -> *).
(HasCallStack, MonadIO m) =>
FunPtr C_AttrClassDestroyFieldCallback -> Attribute -> m ()
Pango.Callbacks.dynamic_AttrClassDestroyFieldCallback FunPtr C_AttrClassDestroyFieldCallback
val'
        AttrClassDestroyFieldCallback -> IO AttrClassDestroyFieldCallback
forall (m :: * -> *) a. Monad m => a -> m a
return AttrClassDestroyFieldCallback
val''
    Maybe AttrClassDestroyFieldCallback
-> IO (Maybe AttrClassDestroyFieldCallback)
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe AttrClassDestroyFieldCallback
result

-- | Set the value of the “@destroy@” field.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.set' attrClass [ #destroy 'Data.GI.Base.Attributes.:=' value ]
-- @
setAttrClassDestroy :: MonadIO m => AttrClass -> FunPtr Pango.Callbacks.C_AttrClassDestroyFieldCallback -> m ()
setAttrClassDestroy :: AttrClass -> FunPtr C_AttrClassDestroyFieldCallback -> m ()
setAttrClassDestroy s :: AttrClass
s val :: FunPtr C_AttrClassDestroyFieldCallback
val = IO () -> m ()
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ AttrClass -> (Ptr AttrClass -> IO ()) -> IO ()
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO ()) -> IO ())
-> (Ptr AttrClass -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    Ptr (FunPtr C_AttrClassDestroyFieldCallback)
-> FunPtr C_AttrClassDestroyFieldCallback -> IO ()
forall a. Storable a => Ptr a -> a -> IO ()
poke (Ptr AttrClass
ptr Ptr AttrClass
-> Int -> Ptr (FunPtr C_AttrClassDestroyFieldCallback)
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 16) (FunPtr C_AttrClassDestroyFieldCallback
val :: FunPtr Pango.Callbacks.C_AttrClassDestroyFieldCallback)

-- | Set the value of the “@destroy@” field to `Nothing`.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.clear' #destroy
-- @
clearAttrClassDestroy :: MonadIO m => AttrClass -> m ()
clearAttrClassDestroy :: AttrClass -> m ()
clearAttrClassDestroy s :: AttrClass
s = IO () -> m ()
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ AttrClass -> (Ptr AttrClass -> IO ()) -> IO ()
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO ()) -> IO ())
-> (Ptr AttrClass -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    Ptr (FunPtr C_AttrClassDestroyFieldCallback)
-> FunPtr C_AttrClassDestroyFieldCallback -> IO ()
forall a. Storable a => Ptr a -> a -> IO ()
poke (Ptr AttrClass
ptr Ptr AttrClass
-> Int -> Ptr (FunPtr C_AttrClassDestroyFieldCallback)
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 16) (FunPtr C_AttrClassDestroyFieldCallback
forall a. FunPtr a
FP.nullFunPtr :: FunPtr Pango.Callbacks.C_AttrClassDestroyFieldCallback)

#if defined(ENABLE_OVERLOADING)
data AttrClassDestroyFieldInfo
instance AttrInfo AttrClassDestroyFieldInfo where
    type AttrBaseTypeConstraint AttrClassDestroyFieldInfo = (~) AttrClass
    type AttrAllowedOps AttrClassDestroyFieldInfo = '[ 'AttrSet, 'AttrGet, 'AttrClear]
    type AttrSetTypeConstraint AttrClassDestroyFieldInfo = (~) (FunPtr Pango.Callbacks.C_AttrClassDestroyFieldCallback)
    type AttrTransferTypeConstraint AttrClassDestroyFieldInfo = (~)Pango.Callbacks.AttrClassDestroyFieldCallback
    type AttrTransferType AttrClassDestroyFieldInfo = (FunPtr Pango.Callbacks.C_AttrClassDestroyFieldCallback)
    type AttrGetType AttrClassDestroyFieldInfo = Maybe Pango.Callbacks.AttrClassDestroyFieldCallback
    type AttrLabel AttrClassDestroyFieldInfo = "destroy"
    type AttrOrigin AttrClassDestroyFieldInfo = AttrClass
    attrGet = getAttrClassDestroy
    attrSet = setAttrClassDestroy
    attrConstruct = undefined
    attrClear = clearAttrClassDestroy
    attrTransfer _ v = do
        Pango.Callbacks.mk_AttrClassDestroyFieldCallback (Pango.Callbacks.wrap_AttrClassDestroyFieldCallback Nothing v)

attrClass_destroy :: AttrLabelProxy "destroy"
attrClass_destroy = AttrLabelProxy

#endif


-- | Get the value of the “@equal@” field.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.get' attrClass #equal
-- @
getAttrClassEqual :: MonadIO m => AttrClass -> m (Maybe Pango.Callbacks.AttrClassEqualFieldCallback)
getAttrClassEqual :: AttrClass -> m (Maybe AttrClassEqualFieldCallback)
getAttrClassEqual s :: AttrClass
s = IO (Maybe AttrClassEqualFieldCallback)
-> m (Maybe AttrClassEqualFieldCallback)
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO (Maybe AttrClassEqualFieldCallback)
 -> m (Maybe AttrClassEqualFieldCallback))
-> IO (Maybe AttrClassEqualFieldCallback)
-> m (Maybe AttrClassEqualFieldCallback)
forall a b. (a -> b) -> a -> b
$ AttrClass
-> (Ptr AttrClass -> IO (Maybe AttrClassEqualFieldCallback))
-> IO (Maybe AttrClassEqualFieldCallback)
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO (Maybe AttrClassEqualFieldCallback))
 -> IO (Maybe AttrClassEqualFieldCallback))
-> (Ptr AttrClass -> IO (Maybe AttrClassEqualFieldCallback))
-> IO (Maybe AttrClassEqualFieldCallback)
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    FunPtr C_AttrClassEqualFieldCallback
val <- Ptr (FunPtr C_AttrClassEqualFieldCallback)
-> IO (FunPtr C_AttrClassEqualFieldCallback)
forall a. Storable a => Ptr a -> IO a
peek (Ptr AttrClass
ptr Ptr AttrClass -> Int -> Ptr (FunPtr C_AttrClassEqualFieldCallback)
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 24) :: IO (FunPtr Pango.Callbacks.C_AttrClassEqualFieldCallback)
    Maybe AttrClassEqualFieldCallback
result <- FunPtr C_AttrClassEqualFieldCallback
-> (FunPtr C_AttrClassEqualFieldCallback
    -> IO AttrClassEqualFieldCallback)
-> IO (Maybe AttrClassEqualFieldCallback)
forall a b. FunPtr a -> (FunPtr a -> IO b) -> IO (Maybe b)
SP.convertFunPtrIfNonNull FunPtr C_AttrClassEqualFieldCallback
val ((FunPtr C_AttrClassEqualFieldCallback
  -> IO AttrClassEqualFieldCallback)
 -> IO (Maybe AttrClassEqualFieldCallback))
-> (FunPtr C_AttrClassEqualFieldCallback
    -> IO AttrClassEqualFieldCallback)
-> IO (Maybe AttrClassEqualFieldCallback)
forall a b. (a -> b) -> a -> b
$ \val' :: FunPtr C_AttrClassEqualFieldCallback
val' -> do
        let val'' :: AttrClassEqualFieldCallback
val'' = FunPtr C_AttrClassEqualFieldCallback -> AttrClassEqualFieldCallback
forall (m :: * -> *).
(HasCallStack, MonadIO m) =>
FunPtr C_AttrClassEqualFieldCallback
-> Attribute -> Attribute -> m Bool
Pango.Callbacks.dynamic_AttrClassEqualFieldCallback FunPtr C_AttrClassEqualFieldCallback
val'
        AttrClassEqualFieldCallback -> IO AttrClassEqualFieldCallback
forall (m :: * -> *) a. Monad m => a -> m a
return AttrClassEqualFieldCallback
val''
    Maybe AttrClassEqualFieldCallback
-> IO (Maybe AttrClassEqualFieldCallback)
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe AttrClassEqualFieldCallback
result

-- | Set the value of the “@equal@” field.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.set' attrClass [ #equal 'Data.GI.Base.Attributes.:=' value ]
-- @
setAttrClassEqual :: MonadIO m => AttrClass -> FunPtr Pango.Callbacks.C_AttrClassEqualFieldCallback -> m ()
setAttrClassEqual :: AttrClass -> FunPtr C_AttrClassEqualFieldCallback -> m ()
setAttrClassEqual s :: AttrClass
s val :: FunPtr C_AttrClassEqualFieldCallback
val = IO () -> m ()
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ AttrClass -> (Ptr AttrClass -> IO ()) -> IO ()
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO ()) -> IO ())
-> (Ptr AttrClass -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    Ptr (FunPtr C_AttrClassEqualFieldCallback)
-> FunPtr C_AttrClassEqualFieldCallback -> IO ()
forall a. Storable a => Ptr a -> a -> IO ()
poke (Ptr AttrClass
ptr Ptr AttrClass -> Int -> Ptr (FunPtr C_AttrClassEqualFieldCallback)
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 24) (FunPtr C_AttrClassEqualFieldCallback
val :: FunPtr Pango.Callbacks.C_AttrClassEqualFieldCallback)

-- | Set the value of the “@equal@” field to `Nothing`.
-- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
-- 
-- @
-- 'Data.GI.Base.Attributes.clear' #equal
-- @
clearAttrClassEqual :: MonadIO m => AttrClass -> m ()
clearAttrClassEqual :: AttrClass -> m ()
clearAttrClassEqual s :: AttrClass
s = IO () -> m ()
forall (m :: * -> *) a. MonadIO m => IO a -> m a
liftIO (IO () -> m ()) -> IO () -> m ()
forall a b. (a -> b) -> a -> b
$ AttrClass -> (Ptr AttrClass -> IO ()) -> IO ()
forall a c.
(HasCallStack, ManagedPtrNewtype a) =>
a -> (Ptr a -> IO c) -> IO c
withManagedPtr AttrClass
s ((Ptr AttrClass -> IO ()) -> IO ())
-> (Ptr AttrClass -> IO ()) -> IO ()
forall a b. (a -> b) -> a -> b
$ \ptr :: Ptr AttrClass
ptr -> do
    Ptr (FunPtr C_AttrClassEqualFieldCallback)
-> FunPtr C_AttrClassEqualFieldCallback -> IO ()
forall a. Storable a => Ptr a -> a -> IO ()
poke (Ptr AttrClass
ptr Ptr AttrClass -> Int -> Ptr (FunPtr C_AttrClassEqualFieldCallback)
forall a b. Ptr a -> Int -> Ptr b
`plusPtr` 24) (FunPtr C_AttrClassEqualFieldCallback
forall a. FunPtr a
FP.nullFunPtr :: FunPtr Pango.Callbacks.C_AttrClassEqualFieldCallback)

#if defined(ENABLE_OVERLOADING)
data AttrClassEqualFieldInfo
instance AttrInfo AttrClassEqualFieldInfo where
    type AttrBaseTypeConstraint AttrClassEqualFieldInfo = (~) AttrClass
    type AttrAllowedOps AttrClassEqualFieldInfo = '[ 'AttrSet, 'AttrGet, 'AttrClear]
    type AttrSetTypeConstraint AttrClassEqualFieldInfo = (~) (FunPtr Pango.Callbacks.C_AttrClassEqualFieldCallback)
    type AttrTransferTypeConstraint AttrClassEqualFieldInfo = (~)Pango.Callbacks.AttrClassEqualFieldCallback
    type AttrTransferType AttrClassEqualFieldInfo = (FunPtr Pango.Callbacks.C_AttrClassEqualFieldCallback)
    type AttrGetType AttrClassEqualFieldInfo = Maybe Pango.Callbacks.AttrClassEqualFieldCallback
    type AttrLabel AttrClassEqualFieldInfo = "equal"
    type AttrOrigin AttrClassEqualFieldInfo = AttrClass
    attrGet = getAttrClassEqual
    attrSet = setAttrClassEqual
    attrConstruct = undefined
    attrClear = clearAttrClassEqual
    attrTransfer _ v = do
        Pango.Callbacks.mk_AttrClassEqualFieldCallback (Pango.Callbacks.wrap_AttrClassEqualFieldCallback Nothing v)

attrClass_equal :: AttrLabelProxy "equal"
attrClass_equal = AttrLabelProxy

#endif



#if defined(ENABLE_OVERLOADING)
instance O.HasAttributeList AttrClass
type instance O.AttributeList AttrClass = AttrClassAttributeList
type AttrClassAttributeList = ('[ '("type", AttrClassTypeFieldInfo), '("destroy", AttrClassDestroyFieldInfo), '("equal", AttrClassEqualFieldInfo)] :: [(Symbol, *)])
#endif

#if defined(ENABLE_OVERLOADING)
type family ResolveAttrClassMethod (t :: Symbol) (o :: *) :: * where
    ResolveAttrClassMethod l o = O.MethodResolutionFailed l o

instance (info ~ ResolveAttrClassMethod t AttrClass, O.MethodInfo info AttrClass p) => OL.IsLabel t (AttrClass -> p) where
#if MIN_VERSION_base(4,10,0)
    fromLabel = O.overloadedMethod @info
#else
    fromLabel _ = O.overloadedMethod @info
#endif

#endif