ormolu/data/examples/declaration/foreign/foreign-import.hs
2019-06-19 21:20:19 +02:00

21 lines
650 B
Haskell

{-# LANGUAGE CApiFFI #-}
foreign import ccall safe foo :: Int -> IO Int
-- | 'bar' is a very important thing
foreign import stdcall "baz" bar :: String -> Int -> IO String
foreign import stdcall unsafe "boo"
-- Here is a comment about my foreign function
boo :: Int -> Text -> IO Array
foreign import javascript baz :: String
-> Int -> IO Foo
foreign import {- We use capi here -} capi "pi.h value pi" c_pi :: CDouble
foreign import stdcall {- This is a bad place for a comment -} "dynamic" dyn_gluBeginSurface
:: FunPtr (Ptr GLUnurbs -> IO ())
-- ^ This 'FunPtr' is extremely dangerous, beware
-> Ptr GLUnurbs -> IO ()