{- |
Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License    : LGPL-2.1
Maintainer : Iñaki García Etxebarria (inaki@blueleaf.cc)

The 'GI.Pango.Structs.AttrList.AttrList' structure represents a list of attributes
that apply to a section of text. The attributes are, in general,
allowed to overlap in an arbitrary fashion, however, if the
attributes are manipulated only through 'GI.Pango.Structs.AttrList.attrListChange',
the overlap between properties will meet stricter criteria.

Since the 'GI.Pango.Structs.AttrList.AttrList' structure is stored as a linear list,
it is not suitable for storing attributes for large amounts
of text. In general, you should not use a single 'GI.Pango.Structs.AttrList.AttrList'
for more than one paragraph of text.
-}

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

module GI.Pango.Structs.AttrList
    ( 

-- * Exported types
    AttrList(..)                            ,
    noAttrList                              ,


 -- * Methods
-- ** change #method:change#

#if ENABLE_OVERLOADING
    AttrListChangeMethodInfo                ,
#endif
    attrListChange                          ,


-- ** copy #method:copy#

#if ENABLE_OVERLOADING
    AttrListCopyMethodInfo                  ,
#endif
    attrListCopy                            ,


-- ** filter #method:filter#

#if ENABLE_OVERLOADING
    AttrListFilterMethodInfo                ,
#endif
    attrListFilter                          ,


-- ** insert #method:insert#

#if ENABLE_OVERLOADING
    AttrListInsertMethodInfo                ,
#endif
    attrListInsert                          ,


-- ** insertBefore #method:insertBefore#

#if ENABLE_OVERLOADING
    AttrListInsertBeforeMethodInfo          ,
#endif
    attrListInsertBefore                    ,


-- ** new #method:new#

    attrListNew                             ,


-- ** ref #method:ref#

#if ENABLE_OVERLOADING
    AttrListRefMethodInfo                   ,
#endif
    attrListRef                             ,


-- ** splice #method:splice#

#if ENABLE_OVERLOADING
    AttrListSpliceMethodInfo                ,
#endif
    attrListSplice                          ,


-- ** unref #method:unref#

#if ENABLE_OVERLOADING
    AttrListUnrefMethodInfo                 ,
#endif
    attrListUnref                           ,




    ) 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.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.Structs.Attribute as Pango.Attribute

-- | Memory-managed wrapper type.
newtype AttrList = AttrList (ManagedPtr AttrList)
foreign import ccall "pango_attr_list_get_type" c_pango_attr_list_get_type :: 
    IO GType

instance BoxedObject AttrList where
    boxedType _ = c_pango_attr_list_get_type

-- | A convenience alias for `Nothing` :: `Maybe` `AttrList`.
noAttrList :: Maybe AttrList
noAttrList = Nothing


#if ENABLE_OVERLOADING
instance O.HasAttributeList AttrList
type instance O.AttributeList AttrList = AttrListAttributeList
type AttrListAttributeList = ('[ ] :: [(Symbol, *)])
#endif

-- method AttrList::new
-- method type : Constructor
-- Args : []
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "Pango", name = "AttrList"}))
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_new" pango_attr_list_new :: 
    IO (Ptr AttrList)

{- |
Create a new empty attribute list with a reference count of one.
-}
attrListNew ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    m AttrList
    {- ^ __Returns:__ the newly allocated 'GI.Pango.Structs.AttrList.AttrList',
              which should be freed with 'GI.Pango.Structs.AttrList.attrListUnref'. -}
attrListNew  = liftIO $ do
    result <- pango_attr_list_new
    checkUnexpectedReturnNULL "attrListNew" result
    result' <- (wrapBoxed AttrList) result
    return result'

#if ENABLE_OVERLOADING
#endif

-- method AttrList::change
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "attr", argType = TInterface (Name {namespace = "Pango", name = "Attribute"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the attribute to insert. Ownership of this\n       value is assumed by the list.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_change" pango_attr_list_change :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    Ptr Pango.Attribute.Attribute ->        -- attr : TInterface (Name {namespace = "Pango", name = "Attribute"})
    IO ()

{- |
Insert the given attribute into the 'GI.Pango.Structs.AttrList.AttrList'. It will
replace any attributes of the same type on that segment
and be merged with any adjoining attributes that are identical.

This function is slower than 'GI.Pango.Structs.AttrList.attrListInsert' for
creating a attribute list in order (potentially much slower
for large lists). However, 'GI.Pango.Structs.AttrList.attrListInsert' is not
suitable for continually changing a set of attributes
since it never removes or combines existing attributes.
-}
attrListChange ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList' -}
    -> Pango.Attribute.Attribute
    {- ^ /@attr@/: the attribute to insert. Ownership of this
       value is assumed by the list. -}
    -> m ()
attrListChange list attr = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    attr' <- unsafeManagedPtrGetPtr attr
    pango_attr_list_change list' attr'
    touchManagedPtr list
    touchManagedPtr attr
    return ()

#if ENABLE_OVERLOADING
data AttrListChangeMethodInfo
instance (signature ~ (Pango.Attribute.Attribute -> m ()), MonadIO m) => O.MethodInfo AttrListChangeMethodInfo AttrList signature where
    overloadedMethod _ = attrListChange

#endif

-- method AttrList::copy
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList, may be %NULL", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "Pango", name = "AttrList"}))
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_copy" pango_attr_list_copy :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    IO (Ptr AttrList)

{- |
Copy /@list@/ and return an identical new list.
-}
attrListCopy ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList', may be 'Nothing' -}
    -> m (Maybe AttrList)
    {- ^ __Returns:__ the newly allocated 'GI.Pango.Structs.AttrList.AttrList', with a
              reference count of one, which should
              be freed with 'GI.Pango.Structs.AttrList.attrListUnref'.
              Returns 'Nothing' if /@list@/ was 'Nothing'. -}
attrListCopy list = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    result <- pango_attr_list_copy list'
    maybeResult <- convertIfNonNull result $ \result' -> do
        result'' <- (wrapBoxed AttrList) result'
        return result''
    touchManagedPtr list
    return maybeResult

#if ENABLE_OVERLOADING
data AttrListCopyMethodInfo
instance (signature ~ (m (Maybe AttrList)), MonadIO m) => O.MethodInfo AttrListCopyMethodInfo AttrList signature where
    overloadedMethod _ = attrListCopy

#endif

-- method AttrList::filter
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "func", argType = TInterface (Name {namespace = "Pango", name = "AttrFilterFunc"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "callback function; returns %TRUE\n       if an attribute should be filtered out.", sinceVersion = Nothing}, argScope = ScopeTypeCall, argClosure = 2, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "data", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "Data to be passed to @func", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "Pango", name = "AttrList"}))
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_filter" pango_attr_list_filter :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    FunPtr Pango.Callbacks.C_AttrFilterFunc -> -- func : TInterface (Name {namespace = "Pango", name = "AttrFilterFunc"})
    Ptr () ->                               -- data : TBasicType TPtr
    IO (Ptr AttrList)

{- |
Given a 'GI.Pango.Structs.AttrList.AttrList' and callback function, removes any elements
of /@list@/ for which /@func@/ returns 'True' and inserts them into
a new list.

/Since: 1.2/
-}
attrListFilter ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList' -}
    -> Pango.Callbacks.AttrFilterFunc
    {- ^ /@func@/: callback function; returns 'True'
       if an attribute should be filtered out. -}
    -> m (Maybe AttrList)
    {- ^ __Returns:__ the new 'GI.Pango.Structs.AttrList.AttrList' or
 'Nothing' if no attributes of the given types were found. -}
attrListFilter list func = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    func' <- Pango.Callbacks.mk_AttrFilterFunc (Pango.Callbacks.wrap_AttrFilterFunc Nothing (Pango.Callbacks.drop_closures_AttrFilterFunc func))
    let data_ = nullPtr
    result <- pango_attr_list_filter list' func' data_
    maybeResult <- convertIfNonNull result $ \result' -> do
        result'' <- (wrapBoxed AttrList) result'
        return result''
    safeFreeFunPtr $ castFunPtrToPtr func'
    touchManagedPtr list
    return maybeResult

#if ENABLE_OVERLOADING
data AttrListFilterMethodInfo
instance (signature ~ (Pango.Callbacks.AttrFilterFunc -> m (Maybe AttrList)), MonadIO m) => O.MethodInfo AttrListFilterMethodInfo AttrList signature where
    overloadedMethod _ = attrListFilter

#endif

-- method AttrList::insert
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "attr", argType = TInterface (Name {namespace = "Pango", name = "Attribute"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the attribute to insert. Ownership of this\n       value is assumed by the list.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_insert" pango_attr_list_insert :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    Ptr Pango.Attribute.Attribute ->        -- attr : TInterface (Name {namespace = "Pango", name = "Attribute"})
    IO ()

{- |
Insert the given attribute into the 'GI.Pango.Structs.AttrList.AttrList'. It will
be inserted after all other attributes with a matching
/@startIndex@/.
-}
attrListInsert ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList' -}
    -> Pango.Attribute.Attribute
    {- ^ /@attr@/: the attribute to insert. Ownership of this
       value is assumed by the list. -}
    -> m ()
attrListInsert list attr = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    attr' <- unsafeManagedPtrGetPtr attr
    pango_attr_list_insert list' attr'
    touchManagedPtr list
    touchManagedPtr attr
    return ()

#if ENABLE_OVERLOADING
data AttrListInsertMethodInfo
instance (signature ~ (Pango.Attribute.Attribute -> m ()), MonadIO m) => O.MethodInfo AttrListInsertMethodInfo AttrList signature where
    overloadedMethod _ = attrListInsert

#endif

-- method AttrList::insert_before
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "attr", argType = TInterface (Name {namespace = "Pango", name = "Attribute"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the attribute to insert. Ownership of this\n       value is assumed by the list.", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_insert_before" pango_attr_list_insert_before :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    Ptr Pango.Attribute.Attribute ->        -- attr : TInterface (Name {namespace = "Pango", name = "Attribute"})
    IO ()

{- |
Insert the given attribute into the 'GI.Pango.Structs.AttrList.AttrList'. It will
be inserted before all other attributes with a matching
/@startIndex@/.
-}
attrListInsertBefore ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList' -}
    -> Pango.Attribute.Attribute
    {- ^ /@attr@/: the attribute to insert. Ownership of this
       value is assumed by the list. -}
    -> m ()
attrListInsertBefore list attr = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    attr' <- unsafeManagedPtrGetPtr attr
    pango_attr_list_insert_before list' attr'
    touchManagedPtr list
    touchManagedPtr attr
    return ()

#if ENABLE_OVERLOADING
data AttrListInsertBeforeMethodInfo
instance (signature ~ (Pango.Attribute.Attribute -> m ()), MonadIO m) => O.MethodInfo AttrListInsertBeforeMethodInfo AttrList signature where
    overloadedMethod _ = attrListInsertBefore

#endif

-- method AttrList::ref
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList, may be %NULL", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TInterface (Name {namespace = "Pango", name = "AttrList"}))
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_ref" pango_attr_list_ref :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    IO (Ptr AttrList)

{- |
Increase the reference count of the given attribute list by one.

/Since: 1.10/
-}
attrListRef ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList', may be 'Nothing' -}
    -> m AttrList
    {- ^ __Returns:__ The attribute list passed in -}
attrListRef list = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    result <- pango_attr_list_ref list'
    checkUnexpectedReturnNULL "attrListRef" result
    result' <- (wrapBoxed AttrList) result
    touchManagedPtr list
    return result'

#if ENABLE_OVERLOADING
data AttrListRefMethodInfo
instance (signature ~ (m AttrList), MonadIO m) => O.MethodInfo AttrListRefMethodInfo AttrList signature where
    overloadedMethod _ = attrListRef

#endif

-- method AttrList::splice
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "other", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "another #PangoAttrList", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "pos", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the position in @list at which to insert @other", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "len", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the length of the spliced segment. (Note that this\n      must be specified since the attributes in @other\n      may only be present at some subsection of this range)", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_splice" pango_attr_list_splice :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    Ptr AttrList ->                         -- other : TInterface (Name {namespace = "Pango", name = "AttrList"})
    Int32 ->                                -- pos : TBasicType TInt
    Int32 ->                                -- len : TBasicType TInt
    IO ()

{- |
This function opens up a hole in /@list@/, fills it in with attributes from
the left, and then merges /@other@/ on top of the hole.

This operation is equivalent to stretching every attribute
that applies at position /@pos@/ in /@list@/ by an amount /@len@/,
and then calling 'GI.Pango.Structs.AttrList.attrListChange' with a copy
of each attribute in /@other@/ in sequence (offset in position by /@pos@/).

This operation proves useful for, for instance, inserting
a pre-edit string in the middle of an edit buffer.
-}
attrListSplice ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList' -}
    -> AttrList
    {- ^ /@other@/: another 'GI.Pango.Structs.AttrList.AttrList' -}
    -> Int32
    {- ^ /@pos@/: the position in /@list@/ at which to insert /@other@/ -}
    -> Int32
    {- ^ /@len@/: the length of the spliced segment. (Note that this
      must be specified since the attributes in /@other@/
      may only be present at some subsection of this range) -}
    -> m ()
attrListSplice list other pos len = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    other' <- unsafeManagedPtrGetPtr other
    pango_attr_list_splice list' other' pos len
    touchManagedPtr list
    touchManagedPtr other
    return ()

#if ENABLE_OVERLOADING
data AttrListSpliceMethodInfo
instance (signature ~ (AttrList -> Int32 -> Int32 -> m ()), MonadIO m) => O.MethodInfo AttrListSpliceMethodInfo AttrList signature where
    overloadedMethod _ = attrListSplice

#endif

-- method AttrList::unref
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "list", argType = TInterface (Name {namespace = "Pango", name = "AttrList"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "a #PangoAttrList, may be %NULL", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "pango_attr_list_unref" pango_attr_list_unref :: 
    Ptr AttrList ->                         -- list : TInterface (Name {namespace = "Pango", name = "AttrList"})
    IO ()

{- |
Decrease the reference count of the given attribute list by one.
If the result is zero, free the attribute list and the attributes
it contains.
-}
attrListUnref ::
    (B.CallStack.HasCallStack, MonadIO m) =>
    AttrList
    {- ^ /@list@/: a 'GI.Pango.Structs.AttrList.AttrList', may be 'Nothing' -}
    -> m ()
attrListUnref list = liftIO $ do
    list' <- unsafeManagedPtrGetPtr list
    pango_attr_list_unref list'
    touchManagedPtr list
    return ()

#if ENABLE_OVERLOADING
data AttrListUnrefMethodInfo
instance (signature ~ (m ()), MonadIO m) => O.MethodInfo AttrListUnrefMethodInfo AttrList signature where
    overloadedMethod _ = attrListUnref

#endif

#if ENABLE_OVERLOADING
type family ResolveAttrListMethod (t :: Symbol) (o :: *) :: * where
    ResolveAttrListMethod "change" o = AttrListChangeMethodInfo
    ResolveAttrListMethod "copy" o = AttrListCopyMethodInfo
    ResolveAttrListMethod "filter" o = AttrListFilterMethodInfo
    ResolveAttrListMethod "insert" o = AttrListInsertMethodInfo
    ResolveAttrListMethod "insertBefore" o = AttrListInsertBeforeMethodInfo
    ResolveAttrListMethod "ref" o = AttrListRefMethodInfo
    ResolveAttrListMethod "splice" o = AttrListSpliceMethodInfo
    ResolveAttrListMethod "unref" o = AttrListUnrefMethodInfo
    ResolveAttrListMethod l o = O.MethodResolutionFailed l o

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

#endif