Idris2/tests/chez/chez022/usealloc.idr

33 lines
842 B
Idris

%foreign "C:mkThing, libmkalloc"
prim__mkThing : PrimIO AnyPtr
%foreign "C:getStr, libmkalloc"
prim__getStr : GCAnyPtr -> PrimIO String
%foreign "C:freeThing, libmkalloc"
prim__freeThing : AnyPtr -> PrimIO ()
mkThing : IO AnyPtr
mkThing = primIO prim__mkThing
getThingStr : GCAnyPtr -> IO String
getThingStr t = primIO (prim__getStr t)
freeThing : AnyPtr -> IO ()
freeThing t = primIO (prim__freeThing t)
doThings : IO ()
doThings
= do xp <- mkThing
yp <- mkThing
x <- onCollectAny xp (\p => do putStrLn "Free X"
freeThing p)
y <- onCollectAny yp (\p => do putStrLn "Free Y"
freeThing p)
putStrLn !(getThingStr x)
putStrLn !(getThingStr y)
main : IO ()
main = do doThings
putStrLn "Done"