ref: 1db7ac527ec413001b7a594269e20b57f65d5a41
dir: /lib/Debug/Trace.hs/
module Debug.Trace(module Debug.Trace) where
import Prelude
import Primitives
trace :: forall a . String -> a -> a
trace msg a = primitive "IO.performIO" (
do
putStrLn msg
return a
)
traceM :: forall m a . Monad m => String -> m ()
traceM s = trace s (return ())