{-# LANGUAGE TypeApplications #-} -- | Copyright : Will Thompson and Iñaki García Etxebarria -- License : LGPL-2.1 -- Maintainer : Iñaki García Etxebarria -- -- @GConverter@ is an interface for streaming conversions. -- -- @GConverter@ is implemented by objects that convert -- binary data in various ways. The conversion can be -- stateful and may fail at any place. -- -- Some example conversions are: character set conversion, -- compression, decompression and regular expression -- replace. -- -- /Since: 2.24/ #if (MIN_VERSION_haskell_gi_overloading(1,0,0) && !defined(__HADDOCK_VERSION__)) #define ENABLE_OVERLOADING #endif module GI.Gio.Interfaces.Converter ( -- * Exported types Converter(..) , IsConverter , toConverter , -- * Methods -- | -- -- === __Click to display all available methods, including inherited ones__ -- ==== Methods -- [bindProperty]("GI.GObject.Objects.Object#g:method:bindProperty"), [bindPropertyFull]("GI.GObject.Objects.Object#g:method:bindPropertyFull"), [convert]("GI.Gio.Interfaces.Converter#g:method:convert"), [forceFloating]("GI.GObject.Objects.Object#g:method:forceFloating"), [freezeNotify]("GI.GObject.Objects.Object#g:method:freezeNotify"), [getv]("GI.GObject.Objects.Object#g:method:getv"), [isFloating]("GI.GObject.Objects.Object#g:method:isFloating"), [notify]("GI.GObject.Objects.Object#g:method:notify"), [notifyByPspec]("GI.GObject.Objects.Object#g:method:notifyByPspec"), [ref]("GI.GObject.Objects.Object#g:method:ref"), [refSink]("GI.GObject.Objects.Object#g:method:refSink"), [reset]("GI.Gio.Interfaces.Converter#g:method:reset"), [runDispose]("GI.GObject.Objects.Object#g:method:runDispose"), [stealData]("GI.GObject.Objects.Object#g:method:stealData"), [stealQdata]("GI.GObject.Objects.Object#g:method:stealQdata"), [thawNotify]("GI.GObject.Objects.Object#g:method:thawNotify"), [unref]("GI.GObject.Objects.Object#g:method:unref"), [watchClosure]("GI.GObject.Objects.Object#g:method:watchClosure"). -- -- ==== Getters -- [getData]("GI.GObject.Objects.Object#g:method:getData"), [getProperty]("GI.GObject.Objects.Object#g:method:getProperty"), [getQdata]("GI.GObject.Objects.Object#g:method:getQdata"). -- -- ==== Setters -- [setData]("GI.GObject.Objects.Object#g:method:setData"), [setDataFull]("GI.GObject.Objects.Object#g:method:setDataFull"), [setProperty]("GI.GObject.Objects.Object#g:method:setProperty"). #if defined(ENABLE_OVERLOADING) ResolveConverterMethod , #endif -- ** convert #method:convert# #if defined(ENABLE_OVERLOADING) ConverterConvertMethodInfo , #endif converterConvert , -- ** reset #method:reset# #if defined(ENABLE_OVERLOADING) ConverterResetMethodInfo , #endif converterReset , ) 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.Objects.Object as GObject.Object import {-# SOURCE #-} qualified GI.Gio.Enums as Gio.Enums import {-# SOURCE #-} qualified GI.Gio.Flags as Gio.Flags #else import qualified GI.GObject.Objects.Object as GObject.Object import {-# SOURCE #-} qualified GI.Gio.Enums as Gio.Enums import {-# SOURCE #-} qualified GI.Gio.Flags as Gio.Flags #endif -- interface Converter -- | Memory-managed wrapper type. newtype Converter = Converter (SP.ManagedPtr Converter) deriving (Converter -> Converter -> Bool (Converter -> Converter -> Bool) -> (Converter -> Converter -> Bool) -> Eq Converter forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a $c== :: Converter -> Converter -> Bool == :: Converter -> Converter -> Bool $c/= :: Converter -> Converter -> Bool /= :: Converter -> Converter -> Bool Eq) instance SP.ManagedPtrNewtype Converter where toManagedPtr :: Converter -> ManagedPtr Converter toManagedPtr (Converter ManagedPtr Converter p) = ManagedPtr Converter p foreign import ccall "g_converter_get_type" c_g_converter_get_type :: IO B.Types.GType instance B.Types.TypedObject Converter where glibType :: IO GType glibType = IO GType c_g_converter_get_type instance B.Types.GObject Converter -- | Type class for types which can be safely cast to `Converter`, for instance with `toConverter`. class (SP.GObject o, O.IsDescendantOf Converter o) => IsConverter o instance (SP.GObject o, O.IsDescendantOf Converter o) => IsConverter o instance O.HasParentTypes Converter type instance O.ParentTypes Converter = '[GObject.Object.Object] -- | Cast to `Converter`, for types for which this is known to be safe. For general casts, use `Data.GI.Base.ManagedPtr.castTo`. toConverter :: (MIO.MonadIO m, IsConverter o) => o -> m Converter toConverter :: forall (m :: * -> *) o. (MonadIO m, IsConverter o) => o -> m Converter toConverter = IO Converter -> m Converter forall a. IO a -> m a forall (m :: * -> *) a. MonadIO m => IO a -> m a MIO.liftIO (IO Converter -> m Converter) -> (o -> IO Converter) -> o -> m Converter forall b c a. (b -> c) -> (a -> b) -> a -> c . (ManagedPtr Converter -> Converter) -> o -> IO Converter forall o o'. (HasCallStack, ManagedPtrNewtype o, TypedObject o, ManagedPtrNewtype o', TypedObject o') => (ManagedPtr o' -> o') -> o -> IO o' B.ManagedPtr.unsafeCastTo ManagedPtr Converter -> Converter Converter -- | Convert 'Converter' to and from 'Data.GI.Base.GValue.GValue'. See 'Data.GI.Base.GValue.toGValue' and 'Data.GI.Base.GValue.fromGValue'. instance B.GValue.IsGValue (Maybe Converter) where gvalueGType_ :: IO GType gvalueGType_ = IO GType c_g_converter_get_type gvalueSet_ :: Ptr GValue -> Maybe Converter -> IO () gvalueSet_ Ptr GValue gv Maybe Converter P.Nothing = Ptr GValue -> Ptr Converter -> IO () forall a. GObject a => Ptr GValue -> Ptr a -> IO () B.GValue.set_object Ptr GValue gv (Ptr Converter forall a. Ptr a FP.nullPtr :: FP.Ptr Converter) gvalueSet_ Ptr GValue gv (P.Just Converter obj) = Converter -> (Ptr Converter -> IO ()) -> IO () forall a c. (HasCallStack, ManagedPtrNewtype a) => a -> (Ptr a -> IO c) -> IO c B.ManagedPtr.withManagedPtr Converter obj (Ptr GValue -> Ptr Converter -> IO () forall a. GObject a => Ptr GValue -> Ptr a -> IO () B.GValue.set_object Ptr GValue gv) gvalueGet_ :: Ptr GValue -> IO (Maybe Converter) gvalueGet_ Ptr GValue gv = do ptr <- Ptr GValue -> IO (Ptr Converter) forall a. GObject a => Ptr GValue -> IO (Ptr a) B.GValue.get_object Ptr GValue gv :: IO (FP.Ptr Converter) if ptr /= FP.nullPtr then P.Just <$> B.ManagedPtr.newObject Converter ptr else return P.Nothing #if defined(ENABLE_OVERLOADING) instance O.HasAttributeList Converter type instance O.AttributeList Converter = ConverterAttributeList type ConverterAttributeList = ('[ ] :: [(Symbol, DK.Type)]) #endif #if defined(ENABLE_OVERLOADING) #endif #if defined(ENABLE_OVERLOADING) type family ResolveConverterMethod (t :: Symbol) (o :: DK.Type) :: DK.Type where ResolveConverterMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo ResolveConverterMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo ResolveConverterMethod "convert" o = ConverterConvertMethodInfo ResolveConverterMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo ResolveConverterMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo ResolveConverterMethod "getv" o = GObject.Object.ObjectGetvMethodInfo ResolveConverterMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo ResolveConverterMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo ResolveConverterMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo ResolveConverterMethod "ref" o = GObject.Object.ObjectRefMethodInfo ResolveConverterMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo ResolveConverterMethod "reset" o = ConverterResetMethodInfo ResolveConverterMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo ResolveConverterMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo ResolveConverterMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo ResolveConverterMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo ResolveConverterMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo ResolveConverterMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo ResolveConverterMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo ResolveConverterMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo ResolveConverterMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo ResolveConverterMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo ResolveConverterMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo ResolveConverterMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo ResolveConverterMethod l o = O.MethodResolutionFailed l o instance (info ~ ResolveConverterMethod t Converter, O.OverloadedMethod info Converter p) => OL.IsLabel t (Converter -> 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 ~ ResolveConverterMethod t Converter, O.OverloadedMethod info Converter p, R.HasField t Converter p) => R.HasField t Converter p where getField = O.overloadedMethod @info #endif instance (info ~ ResolveConverterMethod t Converter, O.OverloadedMethodInfo info Converter) => OL.IsLabel t (O.MethodProxy info Converter) where #if MIN_VERSION_base(4,10,0) fromLabel = O.MethodProxy #else fromLabel _ = O.MethodProxy #endif #endif -- method Converter::convert -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "converter" -- , argType = -- TInterface Name { namespace = "Gio" , name = "Converter" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GConverter." , sinceVersion = Nothing } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "inbuf" -- , argType = TCArray False (-1) 2 (TBasicType TUInt8) -- , direction = DirectionIn -- , mayBeNull = True -- , argDoc = -- Documentation -- { rawDocText = -- Just "the buffer\n containing the data to convert." -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "inbuf_size" -- , argType = TBasicType TSize -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "the number of bytes in @inbuf" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "outbuf" -- , argType = TCArray False (-1) 4 (TBasicType TUInt8) -- , direction = DirectionIn -- , mayBeNull = True -- , argDoc = -- Documentation -- { rawDocText = Just "a\n buffer to write converted data in." -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "outbuf_size" -- , argType = TBasicType TSize -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just "the number of bytes in @outbuf, must be at least one" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "flags" -- , argType = -- TInterface Name { namespace = "Gio" , name = "ConverterFlags" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just "a #GConverterFlags controlling the conversion details" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "bytes_read" -- , argType = TBasicType TSize -- , direction = DirectionOut -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just -- "will be set to the number of bytes read\n from @inbuf on success" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferEverything -- } -- , Arg -- { argCName = "bytes_written" -- , argType = TBasicType TSize -- , direction = DirectionOut -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just -- "will be set to the number of bytes\n written to @outbuf on success" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferEverything -- } -- ] -- Lengths: [ Arg -- { argCName = "outbuf_size" -- , argType = TBasicType TSize -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = -- Just "the number of bytes in @outbuf, must be at least one" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- , Arg -- { argCName = "inbuf_size" -- , argType = TBasicType TSize -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "the number of bytes in @inbuf" -- , sinceVersion = Nothing -- } -- , argScope = ScopeTypeInvalid -- , argClosure = -1 -- , argDestroy = -1 -- , argCallerAllocates = False -- , argCallbackUserData = False -- , transfer = TransferNothing -- } -- ] -- returnType: Just -- (TInterface Name { namespace = "Gio" , name = "ConverterResult" }) -- throws : True -- Skip return : False foreign import ccall "g_converter_convert" g_converter_convert :: Ptr Converter -> -- converter : TInterface (Name {namespace = "Gio", name = "Converter"}) Ptr Word8 -> -- inbuf : TCArray False (-1) 2 (TBasicType TUInt8) FCT.CSize -> -- inbuf_size : TBasicType TSize Ptr Word8 -> -- outbuf : TCArray False (-1) 4 (TBasicType TUInt8) FCT.CSize -> -- outbuf_size : TBasicType TSize CUInt -> -- flags : TInterface (Name {namespace = "Gio", name = "ConverterFlags"}) Ptr FCT.CSize -> -- bytes_read : TBasicType TSize Ptr FCT.CSize -> -- bytes_written : TBasicType TSize Ptr (Ptr GError) -> -- error IO CUInt -- | This is the main operation used when converting data. It is to be called -- multiple times in a loop, and each time it will do some work, i.e. -- producing some output (in /@outbuf@/) or consuming some input (from /@inbuf@/) or -- both. If its not possible to do any work an error is returned. -- -- Note that a single call may not consume all input (or any input at all). -- Also a call may produce output even if given no input, due to state stored -- in the converter producing output. -- -- If any data was either produced or consumed, and then an error happens, then -- only the successful conversion is reported and the error is returned on the -- next call. -- -- A full conversion loop involves calling this method repeatedly, each time -- giving it new input and space output space. When there is no more input -- data after the data in /@inbuf@/, the flag 'GI.Gio.Flags.ConverterFlagsInputAtEnd' must be set. -- The loop will be (unless some error happens) returning 'GI.Gio.Enums.ConverterResultConverted' -- each time until all data is consumed and all output is produced, then -- 'GI.Gio.Enums.ConverterResultFinished' is returned instead. Note, that 'GI.Gio.Enums.ConverterResultFinished' -- may be returned even if 'GI.Gio.Flags.ConverterFlagsInputAtEnd' is not set, for instance -- in a decompression converter where the end of data is detectable from the -- data (and there might even be other data after the end of the compressed data). -- -- When some data has successfully been converted /@bytesRead@/ and is set to -- the number of bytes read from /@inbuf@/, and /@bytesWritten@/ is set to indicate -- how many bytes was written to /@outbuf@/. If there are more data to output -- or consume (i.e. unless the 'GI.Gio.Flags.ConverterFlagsInputAtEnd' is specified) then -- 'GI.Gio.Enums.ConverterResultConverted' is returned, and if no more data is to be output -- then 'GI.Gio.Enums.ConverterResultFinished' is returned. -- -- On error 'GI.Gio.Enums.ConverterResultError' is returned and /@error@/ is set accordingly. -- Some errors need special handling: -- -- 'GI.Gio.Enums.IOErrorEnumNoSpace' is returned if there is not enough space -- to write the resulting converted data, the application should -- call the function again with a larger /@outbuf@/ to continue. -- -- 'GI.Gio.Enums.IOErrorEnumPartialInput' is returned if there is not enough -- input to fully determine what the conversion should produce, -- and the 'GI.Gio.Flags.ConverterFlagsInputAtEnd' flag is not set. This happens for -- example with an incomplete multibyte sequence when converting text, -- or when a regexp matches up to the end of the input (and may match -- further input). It may also happen when /@inbufSize@/ is zero and -- there is no more data to produce. -- -- When this happens the application should read more input and then -- call the function again. If further input shows that there is no -- more data call the function again with the same data but with -- the 'GI.Gio.Flags.ConverterFlagsInputAtEnd' flag set. This may cause the conversion -- to finish as e.g. in the regexp match case (or, to fail again with -- 'GI.Gio.Enums.IOErrorEnumPartialInput' in e.g. a charset conversion where the -- input is actually partial). -- -- After 'GI.Gio.Interfaces.Converter.converterConvert' has returned 'GI.Gio.Enums.ConverterResultFinished' the -- converter object is in an invalid state where its not allowed -- to call 'GI.Gio.Interfaces.Converter.converterConvert' anymore. At this time you can only -- free the object or call 'GI.Gio.Interfaces.Converter.converterReset' to reset it to the -- initial state. -- -- If the flag 'GI.Gio.Flags.ConverterFlagsFlush' is set then conversion is modified -- to try to write out all internal state to the output. The application -- has to call the function multiple times with the flag set, and when -- the available input has been consumed and all internal state has -- been produced then 'GI.Gio.Enums.ConverterResultFlushed' (or 'GI.Gio.Enums.ConverterResultFinished' if -- really at the end) is returned instead of 'GI.Gio.Enums.ConverterResultConverted'. -- This is somewhat similar to what happens at the end of the input stream, -- but done in the middle of the data. -- -- This has different meanings for different conversions. For instance -- in a compression converter it would mean that we flush all the -- compression state into output such that if you uncompress the -- compressed data you get back all the input data. Doing this may -- make the final file larger due to padding though. Another example -- is a regexp conversion, where if you at the end of the flushed data -- have a match, but there is also a potential longer match. In the -- non-flushed case we would ask for more input, but when flushing we -- treat this as the end of input and do the match. -- -- Flushing is not always possible (like if a charset converter flushes -- at a partial multibyte sequence). Converters are supposed to try -- to produce as much output as possible and then return an error -- (typically 'GI.Gio.Enums.IOErrorEnumPartialInput'). -- -- /Since: 2.24/ converterConvert :: (B.CallStack.HasCallStack, MonadIO m, IsConverter a) => a -- ^ /@converter@/: a t'GI.Gio.Interfaces.Converter.Converter'. -> Maybe (ByteString) -- ^ /@inbuf@/: the buffer -- containing the data to convert. -> Maybe (ByteString) -- ^ /@outbuf@/: a -- buffer to write converted data in. -> [Gio.Flags.ConverterFlags] -- ^ /@flags@/: a t'GI.Gio.Flags.ConverterFlags' controlling the conversion details -> m ((Gio.Enums.ConverterResult, FCT.CSize, FCT.CSize)) -- ^ __Returns:__ a t'GI.Gio.Enums.ConverterResult', 'GI.Gio.Enums.ConverterResultError' on error. /(Can throw 'Data.GI.Base.GError.GError')/ converterConvert :: forall (m :: * -> *) a. (HasCallStack, MonadIO m, IsConverter a) => a -> Maybe ByteString -> Maybe ByteString -> [ConverterFlags] -> m (ConverterResult, CSize, CSize) converterConvert a converter Maybe ByteString inbuf Maybe ByteString outbuf [ConverterFlags] flags = IO (ConverterResult, CSize, CSize) -> m (ConverterResult, CSize, CSize) forall a. IO a -> m a forall (m :: * -> *) a. MonadIO m => IO a -> m a liftIO (IO (ConverterResult, CSize, CSize) -> m (ConverterResult, CSize, CSize)) -> IO (ConverterResult, CSize, CSize) -> m (ConverterResult, CSize, CSize) forall a b. (a -> b) -> a -> b $ do let outbufSize :: CSize outbufSize = case Maybe ByteString outbuf of Maybe ByteString Nothing -> CSize 0 Just ByteString jOutbuf -> Int -> CSize forall a b. (Integral a, Num b) => a -> b fromIntegral (Int -> CSize) -> Int -> CSize forall a b. (a -> b) -> a -> b $ ByteString -> Int B.length ByteString jOutbuf let inbufSize :: CSize inbufSize = case Maybe ByteString inbuf of Maybe ByteString Nothing -> CSize 0 Just ByteString jInbuf -> Int -> CSize forall a b. (Integral a, Num b) => a -> b fromIntegral (Int -> CSize) -> Int -> CSize forall a b. (a -> b) -> a -> b $ ByteString -> Int B.length ByteString jInbuf converter' <- a -> IO (Ptr Converter) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a converter maybeInbuf <- case inbuf of Maybe ByteString Nothing -> Ptr Word8 -> IO (Ptr Word8) forall a. a -> IO a forall (m :: * -> *) a. Monad m => a -> m a return Ptr Word8 forall a. Ptr a FP.nullPtr Just ByteString jInbuf -> do jInbuf' <- ByteString -> IO (Ptr Word8) packByteString ByteString jInbuf return jInbuf' maybeOutbuf <- case outbuf of Maybe ByteString Nothing -> Ptr Word8 -> IO (Ptr Word8) forall a. a -> IO a forall (m :: * -> *) a. Monad m => a -> m a return Ptr Word8 forall a. Ptr a FP.nullPtr Just ByteString jOutbuf -> do jOutbuf' <- ByteString -> IO (Ptr Word8) packByteString ByteString jOutbuf return jOutbuf' let flags' = [ConverterFlags] -> CUInt forall b a. (Num b, IsGFlag a) => [a] -> b gflagsToWord [ConverterFlags] flags bytesRead <- allocMem :: IO (Ptr FCT.CSize) bytesWritten <- allocMem :: IO (Ptr FCT.CSize) onException (do result <- propagateGError $ g_converter_convert converter' maybeInbuf inbufSize maybeOutbuf outbufSize flags' bytesRead bytesWritten let result' = (Int -> ConverterResult forall a. Enum a => Int -> a toEnum (Int -> ConverterResult) -> (CUInt -> Int) -> CUInt -> ConverterResult forall b c a. (b -> c) -> (a -> b) -> a -> c . CUInt -> Int forall a b. (Integral a, Num b) => a -> b fromIntegral) CUInt result bytesRead' <- peek bytesRead bytesWritten' <- peek bytesWritten touchManagedPtr converter freeMem maybeInbuf freeMem maybeOutbuf freeMem bytesRead freeMem bytesWritten return (result', bytesRead', bytesWritten') ) (do freeMem maybeInbuf freeMem maybeOutbuf freeMem bytesRead freeMem bytesWritten ) #if defined(ENABLE_OVERLOADING) data ConverterConvertMethodInfo instance (signature ~ (Maybe (ByteString) -> Maybe (ByteString) -> [Gio.Flags.ConverterFlags] -> m ((Gio.Enums.ConverterResult, FCT.CSize, FCT.CSize))), MonadIO m, IsConverter a) => O.OverloadedMethod ConverterConvertMethodInfo a signature where overloadedMethod = converterConvert instance O.OverloadedMethodInfo ConverterConvertMethodInfo a where overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo { O.resolvedSymbolName = "GI.Gio.Interfaces.Converter.converterConvert", O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gio-2.0.35/docs/GI-Gio-Interfaces-Converter.html#v:converterConvert" }) #endif -- method Converter::reset -- method type : OrdinaryMethod -- Args: [ Arg -- { argCName = "converter" -- , argType = -- TInterface Name { namespace = "Gio" , name = "Converter" } -- , direction = DirectionIn -- , mayBeNull = False -- , argDoc = -- Documentation -- { rawDocText = Just "a #GConverter." , 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_converter_reset" g_converter_reset :: Ptr Converter -> -- converter : TInterface (Name {namespace = "Gio", name = "Converter"}) IO () -- | Resets all internal state in the converter, making it behave -- as if it was just created. If the converter has any internal -- state that would produce output then that output is lost. -- -- /Since: 2.24/ converterReset :: (B.CallStack.HasCallStack, MonadIO m, IsConverter a) => a -- ^ /@converter@/: a t'GI.Gio.Interfaces.Converter.Converter'. -> m () converterReset :: forall (m :: * -> *) a. (HasCallStack, MonadIO m, IsConverter a) => a -> m () converterReset a converter = 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 converter' <- a -> IO (Ptr Converter) forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b) unsafeManagedPtrCastPtr a converter g_converter_reset converter' touchManagedPtr converter return () #if defined(ENABLE_OVERLOADING) data ConverterResetMethodInfo instance (signature ~ (m ()), MonadIO m, IsConverter a) => O.OverloadedMethod ConverterResetMethodInfo a signature where overloadedMethod = converterReset instance O.OverloadedMethodInfo ConverterResetMethodInfo a where overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo { O.resolvedSymbolName = "GI.Gio.Interfaces.Converter.converterReset", O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gio-2.0.35/docs/GI-Gio-Interfaces-Converter.html#v:converterReset" }) #endif #if defined(ENABLE_OVERLOADING) type instance O.SignalList Converter = ConverterSignalList type ConverterSignalList = ('[ '("notify", GObject.Object.ObjectNotifySignalInfo)] :: [(Symbol, DK.Type)]) #endif