FreeType.Exception.Internal

Documentation

ftError :: String -> IO FT_Error -> IO ()

An internal function for throwing FtErrors

class AutoError a b where

Methods

autoError :: String -> a -> b

    autoError name f = a b c ... ->
      ftError name $ f a b c ...
  

Instances

AutoError (b -> c) (b -> d) => AutoError (a -> b -> c) (a -> b -> d)

Defined in FreeType.Exception.Internal

Methods

autoError :: String -> (a -> b -> c) -> a -> b -> d

AutoError (a -> IO FT_Error) (a -> IO ())

Defined in FreeType.Exception.Internal

Methods

autoError :: String -> (a -> IO FT_Error) -> a -> IO ()

class AutoAllocaError a b where

Methods

autoAllocaError :: String -> a -> b

    autoAllocaError name f = a b c ->
      alloca $ ptr -> do
        ftError name $ f a b c ... ptr
        peek ptr
  

Instances

Storable a => AutoAllocaError (Ptr a -> IO FT_Error) (IO a)

Defined in FreeType.Exception.Internal

Methods

autoAllocaError :: String -> (Ptr a -> IO FT_Error) -> IO a

AutoAllocaError (b -> c) (b -> d) => AutoAllocaError (a -> b -> c) (a -> b -> d)

Defined in FreeType.Exception.Internal

Methods

autoAllocaError :: String -> (a -> b -> c) -> a -> b -> d

Storable b => AutoAllocaError (a -> Ptr b -> IO FT_Error) (a -> IO b)

Defined in FreeType.Exception.Internal

Methods

autoAllocaError :: String -> (a -> Ptr b -> IO FT_Error) -> a -> IO b