ghc-mod/Language/Haskell/GhcMod/Lint.hs

22 lines
745 B
Haskell
Raw Normal View History

2013-05-17 01:00:01 +00:00
module Language.Haskell.GhcMod.Lint where
2010-05-06 06:29:55 +00:00
import Exception (ghandle)
import Control.Exception (SomeException(..))
import CoreMonad (liftIO)
2014-04-28 12:47:08 +00:00
import Language.Haskell.GhcMod.Logger (checkErrorPrefix)
2014-05-11 22:40:00 +00:00
import Language.Haskell.GhcMod.Convert
import Language.Haskell.GhcMod.Monad
2014-03-27 06:56:14 +00:00
import Language.Haskell.HLint (hlint)
2010-05-06 06:29:55 +00:00
2013-05-20 05:28:56 +00:00
-- | Checking syntax of a target file using hlint.
-- Warnings and errors are returned.
lint :: IOish m
=> FilePath -- ^ A target file.
-> GhcModT m String
lint file = do
opt <- options
ghandle handler . pack =<< (liftIO $ hlint $ file : "--quiet" : hlintOpts opt)
where
pack = convert' . map (init . show) -- init drops the last \n.
2014-04-25 02:08:29 +00:00
handler (SomeException e) = return $ checkErrorPrefix ++ show e ++ "\n"