35690941aa
- Remove Language.Haskell prefix from all modules - Move 'GHCMod.*' to 'GhcMod.Exe' - Move 'GhcModExe' to 'GhcMod.Exe'
109 lines
3.1 KiB
Haskell
109 lines
3.1 KiB
Haskell
{-# LANGUAGE TemplateHaskell #-}
|
|
|
|
module GhcMod.DynFlags where
|
|
|
|
import Control.Applicative
|
|
import Control.Monad
|
|
import GHC
|
|
import qualified GHC as G
|
|
import GHC.Paths (libdir)
|
|
import qualified GhcMod.Gap as Gap
|
|
import GhcMod.Types
|
|
import GhcMod.DebugLogger
|
|
import GhcMod.DynFlagsTH
|
|
import System.IO.Unsafe (unsafePerformIO)
|
|
import Prelude
|
|
|
|
setEmptyLogger :: DynFlags -> DynFlags
|
|
setEmptyLogger df =
|
|
Gap.setLogAction df $ \_ _ _ _ _ _ -> return ()
|
|
|
|
setDebugLogger :: (String -> IO ()) -> DynFlags -> DynFlags
|
|
setDebugLogger put df = do
|
|
Gap.setLogAction df (debugLogAction put)
|
|
|
|
-- * Fast
|
|
-- * Friendly to foreign export
|
|
-- * Not friendly to -XTemplateHaskell and -XPatternSynonyms
|
|
-- * Uses little memory
|
|
setHscNothing :: DynFlags -> DynFlags
|
|
setHscNothing df = df {
|
|
ghcMode = CompManager
|
|
, ghcLink = NoLink
|
|
, hscTarget = HscNothing
|
|
, optLevel = 0
|
|
}
|
|
|
|
-- * Slow
|
|
-- * Not friendly to foreign export
|
|
-- * Friendly to -XTemplateHaskell and -XPatternSynonyms
|
|
-- * Uses lots of memory
|
|
setHscInterpreted :: DynFlags -> DynFlags
|
|
setHscInterpreted df = df {
|
|
ghcMode = CompManager
|
|
, ghcLink = LinkInMemory
|
|
, hscTarget = HscInterpreted
|
|
, optLevel = 0
|
|
}
|
|
|
|
-- | Parse command line ghc options and add them to the 'DynFlags' passed
|
|
addCmdOpts :: GhcMonad m => [GHCOption] -> DynFlags -> m DynFlags
|
|
addCmdOpts cmdOpts df =
|
|
fst3 <$> G.parseDynamicFlags df (map G.noLoc cmdOpts)
|
|
where
|
|
fst3 (a,_,_) = a
|
|
|
|
----------------------------------------------------------------
|
|
|
|
withDynFlags :: GhcMonad m
|
|
=> (DynFlags -> DynFlags)
|
|
-> m a
|
|
-> m a
|
|
withDynFlags setFlags body = G.gbracket setup teardown (\_ -> body)
|
|
where
|
|
setup = do
|
|
dflags <- G.getSessionDynFlags
|
|
void $ G.setSessionDynFlags (setFlags dflags)
|
|
return dflags
|
|
teardown = void . G.setSessionDynFlags
|
|
|
|
withCmdFlags :: GhcMonad m => [GHCOption] -> m a -> m a
|
|
withCmdFlags flags body = G.gbracket setup teardown (\_ -> body)
|
|
where
|
|
setup = do
|
|
dflags <- G.getSessionDynFlags
|
|
void $ G.setSessionDynFlags =<< addCmdOpts flags dflags
|
|
return dflags
|
|
teardown = void . G.setSessionDynFlags
|
|
|
|
----------------------------------------------------------------
|
|
|
|
-- | Set 'DynFlags' equivalent to "-w:".
|
|
setNoWarningFlags :: DynFlags -> DynFlags
|
|
setNoWarningFlags df = df { warningFlags = Gap.emptyWarnFlags}
|
|
|
|
-- | Set 'DynFlags' equivalent to "-Wall".
|
|
setAllWarningFlags :: DynFlags -> DynFlags
|
|
setAllWarningFlags df = df { warningFlags = allWarningFlags }
|
|
|
|
allWarningFlags :: Gap.WarnFlags
|
|
allWarningFlags = unsafePerformIO $
|
|
G.runGhc (Just libdir) $ do
|
|
df <- G.getSessionDynFlags
|
|
df' <- addCmdOpts ["-Wall"] df
|
|
return $ G.warningFlags df'
|
|
|
|
----------------------------------------------------------------
|
|
|
|
deferErrors :: Monad m => DynFlags -> m DynFlags
|
|
deferErrors df = return $
|
|
Gap.setWarnTypedHoles $ Gap.setDeferTypedHoles $
|
|
Gap.setDeferTypeErrors $ setNoWarningFlags df
|
|
|
|
----------------------------------------------------------------
|
|
|
|
deriveEqDynFlags [d|
|
|
eqDynFlags :: DynFlags -> DynFlags -> Bool
|
|
eqDynFlags = undefined
|
|
|]
|