    {-# LANGUAGE TypeApplications #-}

    -- | Copyright  : Will Thompson and Iñaki García Etxebarria
    -- License    : LGPL-2.1
    -- Maintainer : Iñaki García Etxebarria
    --
    -- An opaque structure used as the base of all interface types.

    #if !defined(__HADDOCK_VERSION__)
    #define ENABLE_OVERLOADING
    #endif

    module GI.GObject.Structs.TypeInterface
        (

    -- * Exported types
        TypeInterface(..)                       ,
        newZeroTypeInterface                    ,

     -- * Methods
    -- |
    --
    --  === __Click to display all available methods, including inherited ones__
    -- ==== Methods
    -- [peekParent]("GI.GObject.Structs.TypeInterface#g:method:peekParent").
    --
    -- ==== Getters
    -- /None/.
    --
    -- ==== Setters
    -- /None/.

    #if defined(ENABLE_OVERLOADING)
        ResolveTypeInterfaceMethod              ,
    #endif

    -- ** addPrerequisite #method:addPrerequisite#

        typeInterfaceAddPrerequisite            ,

    -- ** getPlugin #method:getPlugin#

        typeInterfaceGetPlugin                  ,

    -- ** instantiatablePrerequisite #method:instantiatablePrerequisite#

        typeInterfaceInstantiatablePrerequisite ,

    -- ** peek #method:peek#

        typeInterfacePeek                       ,

    -- ** peekParent #method:peekParent#

    #if defined(ENABLE_OVERLOADING)
        TypeInterfacePeekParentMethodInfo       ,
    #endif
        typeInterfacePeekParent                 ,

    -- ** prerequisites #method:prerequisites#

        typeInterfacePrerequisites              ,

        ) 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.BasicTypes as B.Types
    import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
    import qualified Data.GI.Base.GArray as B.GArray
    import qualified Data.GI.Base.GClosure as B.GClosure
    import qualified Data.GI.Base.GError as B.GError
    import qualified Data.GI.Base.GHashTable as B.GHT
    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 Control.Monad.IO.Class as MIO
    import qualified Data.Coerce as Coerce
    import qualified Data.Text as T
    import qualified Data.Kind as DK
    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 GHC.Records as R
    import qualified Data.Word as DW
    import qualified Data.Int as DI
    import qualified System.Posix.Types as SPT
    import qualified Foreign.C.Types as FCT

    -- Workaround for https://gitlab.haskell.org/ghc/ghc/-/issues/23392
    #if MIN_VERSION_base(4,18,0)
    import qualified GI.GObject.Callbacks as GObject.Callbacks
    import {-# SOURCE #-} qualified GI.GObject.Interfaces.TypePlugin as GObject.TypePlugin
    import {-# SOURCE #-} qualified GI.GObject.Structs.InterfaceInfo as GObject.InterfaceInfo
    import {-# SOURCE #-} qualified GI.GObject.Structs.TypeClass as GObject.TypeClass
    import {-# SOURCE #-} qualified GI.GObject.Structs.TypeInfo as GObject.TypeInfo
    import {-# SOURCE #-} qualified GI.GObject.Structs.TypeValueTable as GObject.TypeValueTable

    #else
    import {-# SOURCE #-} qualified GI.GObject.Interfaces.TypePlugin as GObject.TypePlugin
    import {-# SOURCE #-} qualified GI.GObject.Structs.TypeClass as GObject.TypeClass

    #endif

    -- | Memory-managed wrapper type.
    newtype TypeInterface = TypeInterface (SP.ManagedPtr TypeInterface)
        deriving (TypeInterface -> TypeInterface -> Bool
    (TypeInterface -> TypeInterface -> Bool)
    -> (TypeInterface -> TypeInterface -> Bool) -> Eq TypeInterface
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: TypeInterface -> TypeInterface -> Bool
    == :: TypeInterface -> TypeInterface -> Bool
    $c/= :: TypeInterface -> TypeInterface -> Bool
    /= :: TypeInterface -> TypeInterface -> Bool
    Eq)

    instance SP.ManagedPtrNewtype TypeInterface where
        toManagedPtr :: TypeInterface -> ManagedPtr TypeInterface
    toManagedPtr (TypeInterface ManagedPtr TypeInterface
    p) = ManagedPtr TypeInterface
    p

    instance BoxedPtr TypeInterface where
        boxedPtrCopy :: TypeInterface -> IO TypeInterface
    boxedPtrCopy = \TypeInterface
    p -> TypeInterface
    -> (Ptr TypeInterface -> IO TypeInterface) -> IO TypeInterface
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    B.ManagedPtr.withManagedPtr TypeInterface
    p (Int -> Ptr TypeInterface -> IO (Ptr TypeInterface)
    forall a. (HasCallStack, CallocPtr a) => Int -> Ptr a -> IO (Ptr a)
    copyBytes Int
    16 (Ptr TypeInterface -> IO (Ptr TypeInterface))
    -> (Ptr TypeInterface -> IO TypeInterface)
    -> Ptr TypeInterface
    -> IO TypeInterface
    forall (m :: * -> *) a b c.
    Monad m =>
    (a -> m b) -> (b -> m c) -> a -> m c
    >=> (ManagedPtr TypeInterface -> TypeInterface)
    -> Ptr TypeInterface -> IO TypeInterface
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    B.ManagedPtr.wrapPtr ManagedPtr TypeInterface -> TypeInterface
    TypeInterface)
        boxedPtrFree :: TypeInterface -> IO ()
    boxedPtrFree = \TypeInterface
    x -> TypeInterface -> (Ptr TypeInterface -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    SP.withManagedPtr TypeInterface
    x Ptr TypeInterface -> IO ()
    forall a. Ptr a -> IO ()
    SP.freeMem
    instance CallocPtr TypeInterface where
        boxedPtrCalloc :: IO (Ptr TypeInterface)
    boxedPtrCalloc = Int -> IO (Ptr TypeInterface)
    forall a. Int -> IO (Ptr a)
    callocBytes Int
    16

    -- | Construct a t'TypeInterface' struct initialized to zero.
    newZeroTypeInterface :: MonadIO m => m TypeInterface
    newZeroTypeInterface :: forall (m :: * -> *). MonadIO m => m TypeInterface
    newZeroTypeInterface = IO TypeInterface -> m TypeInterface
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO TypeInterface -> m TypeInterface)
    -> IO TypeInterface -> m TypeInterface
    forall a b. (a -> b) -> a -> b
    $ IO (Ptr TypeInterface)
    forall a. CallocPtr a => IO (Ptr a)
    boxedPtrCalloc IO (Ptr TypeInterface)
    -> (Ptr TypeInterface -> IO TypeInterface) -> IO TypeInterface
    forall a b. IO a -> (a -> IO b) -> IO b
    forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
    >>= (ManagedPtr TypeInterface -> TypeInterface)
    -> Ptr TypeInterface -> IO TypeInterface
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    wrapPtr ManagedPtr TypeInterface -> TypeInterface
    TypeInterface

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

    #if defined(ENABLE_OVERLOADING)
    instance O.HasAttributeList TypeInterface
    type instance O.AttributeList TypeInterface = TypeInterfaceAttributeList
    type TypeInterfaceAttributeList = ('[ ] :: [(Symbol, DK.Type)])
    #endif

    -- method TypeInterface::peek_parent
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "g_iface"
    --           , argType =
    --               TInterface Name { namespace = "GObject" , name = "TypeInterface" }
    --           , argCType = Just "gpointer"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GTypeInterface structure"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just
    --               (TInterface
    --                  Name { namespace = "GObject" , name = "TypeInterface" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_type_interface_peek_parent" g_type_interface_peek_parent ::
        Ptr TypeInterface ->                    -- g_iface : TInterface (Name {namespace = "GObject", name = "TypeInterface"})
        IO (Ptr TypeInterface)

    -- | Returns the corresponding t'GI.GObject.Structs.TypeInterface.TypeInterface' structure of the parent type
    -- of the instance type to which /@gIface@/ belongs.
    --
    -- This is useful when deriving the implementation of an interface from the
    -- parent type and then possibly overriding some methods.
    typeInterfacePeekParent ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        TypeInterface
        -- ^ /@gIface@/: a t'GI.GObject.Structs.TypeInterface.TypeInterface' structure
        -> m (Maybe TypeInterface)
        -- ^ __Returns:__ the
        --   corresponding t'GI.GObject.Structs.TypeInterface.TypeInterface' structure of the parent type of the
        --   instance type to which /@gIface@/ belongs, or 'P.Nothing' if the parent
        --   type doesn\'t conform to the interface
    typeInterfacePeekParent :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    TypeInterface -> m (Maybe TypeInterface)
    typeInterfacePeekParent TypeInterface
    gIface = IO (Maybe TypeInterface) -> m (Maybe TypeInterface)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe TypeInterface) -> m (Maybe TypeInterface))
    -> IO (Maybe TypeInterface) -> m (Maybe TypeInterface)
    forall a b. (a -> b) -> a -> b
    $ do
        gIface' <- TypeInterface -> IO (Ptr TypeInterface)
    forall a. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr a)
    unsafeManagedPtrGetPtr TypeInterface
    gIface
        result <- g_type_interface_peek_parent gIface'
        maybeResult <- convertIfNonNull result $ \Ptr TypeInterface
    result' -> do
            result'' <- ((ManagedPtr TypeInterface -> TypeInterface)
    -> Ptr TypeInterface -> IO TypeInterface
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    newPtr ManagedPtr TypeInterface -> TypeInterface
    TypeInterface) Ptr TypeInterface
    result'
            return result''
        touchManagedPtr gIface
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    data TypeInterfacePeekParentMethodInfo
    instance (signature ~ (m (Maybe TypeInterface)), MonadIO m) => O.OverloadedMethod TypeInterfacePeekParentMethodInfo TypeInterface signature where
        overloadedMethod = typeInterfacePeekParent

    instance O.OverloadedMethodInfo TypeInterfacePeekParentMethodInfo TypeInterface where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.GObject.Structs.TypeInterface.typeInterfacePeekParent",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gobject-2.0.31/docs/GI-GObject-Structs-TypeInterface.html#v:typeInterfacePeekParent"
            })

    #endif

    -- method TypeInterface::add_prerequisite
    -- method type : MemberFunction
    -- Args: [ Arg
    --           { argCName = "interface_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "#GType value of an interface type"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "prerequisite_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText =
    --                     Just "#GType value of an interface or instantiatable type"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Nothing
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_type_interface_add_prerequisite" g_type_interface_add_prerequisite ::
        CGType ->                               -- interface_type : TBasicType TGType
        CGType ->                               -- prerequisite_type : TBasicType TGType
        IO ()

    -- | Adds /@prerequisiteType@/ to the list of prerequisites of /@interfaceType@/.
    -- This means that any type implementing /@interfaceType@/ must also implement
    -- /@prerequisiteType@/. Prerequisites can be thought of as an alternative to
    -- interface derivation (which GType doesn\'t support). An interface can have
    -- at most one instantiatable prerequisite type.
    typeInterfaceAddPrerequisite ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        GType
        -- ^ /@interfaceType@/: t'GType' value of an interface type
        -> GType
        -- ^ /@prerequisiteType@/: t'GType' value of an interface or instantiatable type
        -> m ()
    typeInterfaceAddPrerequisite :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    GType -> GType -> m ()
    typeInterfaceAddPrerequisite GType
    interfaceType GType
    prerequisiteType = IO () -> m ()
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO () -> m ()) -> IO () -> m ()
    forall a b. (a -> b) -> a -> b
    $ do
        let interfaceType' :: CGType
    interfaceType' = GType -> CGType
    gtypeToCGType GType
    interfaceType
        let prerequisiteType' :: CGType
    prerequisiteType' = GType -> CGType
    gtypeToCGType GType
    prerequisiteType
        CGType -> CGType -> IO ()
    g_type_interface_add_prerequisite CGType
    interfaceType' CGType
    prerequisiteType'
        () -> IO ()
    forall a. a -> IO a
    forall (m :: * -> *) a. Monad m => a -> m a
    return ()

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method TypeInterface::get_plugin
    -- method type : MemberFunction
    -- Args: [ Arg
    --           { argCName = "instance_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "#GType of an instantiatable type"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "interface_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "#GType of an interface type"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just
    --               (TInterface Name { namespace = "GObject" , name = "TypePlugin" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_type_interface_get_plugin" g_type_interface_get_plugin ::
        CGType ->                               -- instance_type : TBasicType TGType
        CGType ->                               -- interface_type : TBasicType TGType
        IO (Ptr GObject.TypePlugin.TypePlugin)

    -- | Returns the t'GI.GObject.Interfaces.TypePlugin.TypePlugin' structure for the dynamic interface
    -- /@interfaceType@/ which has been added to /@instanceType@/, or 'P.Nothing'
    -- if /@interfaceType@/ has not been added to /@instanceType@/ or does
    -- not have a t'GI.GObject.Interfaces.TypePlugin.TypePlugin' structure. See 'GI.GObject.Functions.typeAddInterfaceDynamic'.
    typeInterfaceGetPlugin ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        GType
        -- ^ /@instanceType@/: t'GType' of an instantiatable type
        -> GType
        -- ^ /@interfaceType@/: t'GType' of an interface type
        -> m GObject.TypePlugin.TypePlugin
        -- ^ __Returns:__ the t'GI.GObject.Interfaces.TypePlugin.TypePlugin' for the dynamic
        --     interface /@interfaceType@/ of /@instanceType@/
    typeInterfaceGetPlugin :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    GType -> GType -> m TypePlugin
    typeInterfaceGetPlugin GType
    instanceType GType
    interfaceType = IO TypePlugin -> m TypePlugin
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO TypePlugin -> m TypePlugin) -> IO TypePlugin -> m TypePlugin
    forall a b. (a -> b) -> a -> b
    $ do
        let instanceType' :: CGType
    instanceType' = GType -> CGType
    gtypeToCGType GType
    instanceType
        let interfaceType' :: CGType
    interfaceType' = GType -> CGType
    gtypeToCGType GType
    interfaceType
        result <- CGType -> CGType -> IO (Ptr TypePlugin)
    g_type_interface_get_plugin CGType
    instanceType' CGType
    interfaceType'
        checkUnexpectedReturnNULL "typeInterfaceGetPlugin" result
        result' <- (newPtr GObject.TypePlugin.TypePlugin) result
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method TypeInterface::instantiatable_prerequisite
    -- method type : MemberFunction
    -- Args: [ Arg
    --           { argCName = "interface_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "an interface type" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TGType)
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_type_interface_instantiatable_prerequisite" g_type_interface_instantiatable_prerequisite ::
        CGType ->                               -- interface_type : TBasicType TGType
        IO CGType

    -- | Returns the most specific instantiatable prerequisite of an
    -- interface type. If the interface type has no instantiatable
    -- prerequisite, @/G_TYPE_INVALID/@ is returned.
    --
    -- See 'GI.GObject.Functions.typeInterfaceAddPrerequisite' for more information
    -- about prerequisites.
    --
    -- /Since: 2.68/
    typeInterfaceInstantiatablePrerequisite ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        GType
        -- ^ /@interfaceType@/: an interface type
        -> m GType
        -- ^ __Returns:__ the instantiatable prerequisite type or @/G_TYPE_INVALID/@ if none
    typeInterfaceInstantiatablePrerequisite :: forall (m :: * -> *). (HasCallStack, MonadIO m) => GType -> m GType
    typeInterfaceInstantiatablePrerequisite GType
    interfaceType = IO GType -> m GType
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO GType -> m GType) -> IO GType -> m GType
    forall a b. (a -> b) -> a -> b
    $ do
        let interfaceType' :: CGType
    interfaceType' = GType -> CGType
    gtypeToCGType GType
    interfaceType
        result <- CGType -> IO CGType
    g_type_interface_instantiatable_prerequisite CGType
    interfaceType'
        let result' = CGType -> GType
    GType CGType
    result
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method TypeInterface::peek
    -- method type : MemberFunction
    -- Args: [ Arg
    --           { argCName = "instance_class"
    --           , argType =
    --               TInterface Name { namespace = "GObject" , name = "TypeClass" }
    --           , argCType = Just "gpointer"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a #GTypeClass structure"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "iface_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "an interface ID which this class conforms to"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just
    --               (TInterface
    --                  Name { namespace = "GObject" , name = "TypeInterface" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_type_interface_peek" g_type_interface_peek ::
        Ptr GObject.TypeClass.TypeClass ->      -- instance_class : TInterface (Name {namespace = "GObject", name = "TypeClass"})
        CGType ->                               -- iface_type : TBasicType TGType
        IO (Ptr TypeInterface)

    -- | Returns the t'GI.GObject.Structs.TypeInterface.TypeInterface' structure of an interface to which the
    -- passed in class conforms.
    typeInterfacePeek ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        GObject.TypeClass.TypeClass
        -- ^ /@instanceClass@/: a t'GI.GObject.Structs.TypeClass.TypeClass' structure
        -> GType
        -- ^ /@ifaceType@/: an interface ID which this class conforms to
        -> m (Maybe TypeInterface)
        -- ^ __Returns:__ the t'GI.GObject.Structs.TypeInterface.TypeInterface'
        --   structure of /@ifaceType@/ if implemented by /@instanceClass@/, 'P.Nothing'
        --   otherwise
    typeInterfacePeek :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    TypeClass -> GType -> m (Maybe TypeInterface)
    typeInterfacePeek TypeClass
    instanceClass GType
    ifaceType = IO (Maybe TypeInterface) -> m (Maybe TypeInterface)
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO (Maybe TypeInterface) -> m (Maybe TypeInterface))
    -> IO (Maybe TypeInterface) -> m (Maybe TypeInterface)
    forall a b. (a -> b) -> a -> b
    $ do
        instanceClass' <- TypeClass -> IO (Ptr TypeClass)
    forall a. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr a)
    unsafeManagedPtrGetPtr TypeClass
    instanceClass
        let ifaceType' = GType -> CGType
    gtypeToCGType GType
    ifaceType
        result <- g_type_interface_peek instanceClass' ifaceType'
        maybeResult <- convertIfNonNull result $ \Ptr TypeInterface
    result' -> do
            result'' <- ((ManagedPtr TypeInterface -> TypeInterface)
    -> Ptr TypeInterface -> IO TypeInterface
    forall a.
    (HasCallStack, BoxedPtr a) =>
    (ManagedPtr a -> a) -> Ptr a -> IO a
    newPtr ManagedPtr TypeInterface -> TypeInterface
    TypeInterface) Ptr TypeInterface
    result'
            return result''
        touchManagedPtr instanceClass
        return maybeResult

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method TypeInterface::prerequisites
    -- method type : MemberFunction
    -- Args: [ Arg
    --           { argCName = "interface_type"
    --           , argType = TBasicType TGType
    --           , argCType = Just "GType"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "an interface type" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       , Arg
    --           { argCName = "n_prerequisites"
    --           , argType = TBasicType TUInt
    --           , argCType = Just "guint*"
    --           , direction = DirectionOut
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText =
    --                     Just
    --                       "location to return the number\n    of prerequisites, or %NULL"
    --                 , sinceVersion = Nothing
    --                 }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferEverything
    --           }
    --       ]
    -- Lengths: [ Arg
    --              { argCName = "n_prerequisites"
    --              , argType = TBasicType TUInt
    --              , argCType = Just "guint*"
    --              , direction = DirectionOut
    --              , mayBeNull = False
    --              , argDoc =
    --                  Documentation
    --                    { rawDocText =
    --                        Just
    --                          "location to return the number\n    of prerequisites, or %NULL"
    --                    , sinceVersion = Nothing
    --                    }
    --              , argScope = ScopeTypeInvalid
    --              , argClosure = -1
    --              , argDestroy = -1
    --              , argCallerAllocates = False
    --              , argCallbackUserData = False
    --              , transfer = TransferEverything
    --              }
    --          ]
    -- returnType: Just (TCArray False (-1) 1 (TBasicType TGType))
    -- throws : False
    -- Skip return : False

    foreign import ccall "g_type_interface_prerequisites" g_type_interface_prerequisites ::
        CGType ->                               -- interface_type : TBasicType TGType
        Ptr Word32 ->                           -- n_prerequisites : TBasicType TUInt
        IO (Ptr CGType)

    -- | Returns the prerequisites of an interfaces type.
    --
    -- /Since: 2.2/
    typeInterfacePrerequisites ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        GType
        -- ^ /@interfaceType@/: an interface type
        -> m [GType]
        -- ^ __Returns:__ a
        --     newly-allocated zero-terminated array of t'GType' containing
        --     the prerequisites of /@interfaceType@/
    typeInterfacePrerequisites :: forall (m :: * -> *).
    (HasCallStack, MonadIO m) =>
    GType -> m [GType]
    typeInterfacePrerequisites GType
    interfaceType = IO [GType] -> m [GType]
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO [GType] -> m [GType]) -> IO [GType] -> m [GType]
    forall a b. (a -> b) -> a -> b
    $ do
        let interfaceType' :: CGType
    interfaceType' = GType -> CGType
    gtypeToCGType GType
    interfaceType
        nPrerequisites <- IO (Ptr Word32)
    forall a. Storable a => IO (Ptr a)
    allocMem :: IO (Ptr Word32)
        result <- g_type_interface_prerequisites interfaceType' nPrerequisites
        nPrerequisites' <- peek nPrerequisites
        checkUnexpectedReturnNULL "typeInterfacePrerequisites" result
        result' <- (unpackMapStorableArrayWithLength GType nPrerequisites') result
        freeMem result
        freeMem nPrerequisites
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif

    #if defined(ENABLE_OVERLOADING)
    type family ResolveTypeInterfaceMethod (t :: Symbol) (o :: DK.Type) :: DK.Type where
        ResolveTypeInterfaceMethod "peekParent" o = TypeInterfacePeekParentMethodInfo
        ResolveTypeInterfaceMethod l o = O.MethodResolutionFailed l o

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

    #if MIN_VERSION_base(4,13,0)
    instance (info ~ ResolveTypeInterfaceMethod t TypeInterface, O.OverloadedMethod info TypeInterface p, R.HasField t TypeInterface p) => R.HasField t TypeInterface p where
        getField = O.overloadedMethod @info

    #endif

    instance (info ~ ResolveTypeInterfaceMethod t TypeInterface, O.OverloadedMethodInfo info TypeInterface) => OL.IsLabel t (O.MethodProxy info TypeInterface) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.MethodProxy
    #else
        fromLabel _ = O.MethodProxy
    #endif

    #endif