567 lines
17 KiB
Haskell
567 lines
17 KiB
Haskell
{-# LANGUAGE TypeSynonymInstances, FlexibleInstances, CPP, ScopedTypeVariables, RankNTypes #-}
|
|
|
|
module Language.Haskell.GhcMod.Gap (
|
|
Language.Haskell.GhcMod.Gap.ClsInst
|
|
, mkTarget
|
|
, withStyle
|
|
, GmLogAction
|
|
, setLogAction
|
|
, getSrcSpan
|
|
, getSrcFile
|
|
, withInteractiveContext
|
|
, fOptions
|
|
, toStringBuffer
|
|
, showSeverityCaption
|
|
, setCabalPkg
|
|
, setHideAllPackages
|
|
, setDeferTypeErrors
|
|
, setDeferTypedHoles
|
|
, setWarnTypedHoles
|
|
, setDumpSplices
|
|
, isDumpSplices
|
|
, filterOutChildren
|
|
, infoThing
|
|
, pprInfo
|
|
, HasType(..)
|
|
, errorMsgSpan
|
|
, typeForUser
|
|
, nameForUser
|
|
, occNameForUser
|
|
, deSugar
|
|
, showDocWith
|
|
, GapThing(..)
|
|
, fromTyThing
|
|
, fileModSummary
|
|
, WarnFlags
|
|
, emptyWarnFlags
|
|
, GLMatch
|
|
, GLMatchI
|
|
, getClass
|
|
, occName
|
|
, listVisibleModuleNames
|
|
, listVisibleModules
|
|
, lookupModulePackageInAllPackages
|
|
, Language.Haskell.GhcMod.Gap.isSynTyCon
|
|
, parseModuleHeader
|
|
, mkErrStyle'
|
|
) where
|
|
|
|
import Control.Applicative hiding (empty)
|
|
import Control.Monad (filterM)
|
|
import CoreSyn (CoreExpr)
|
|
import Data.List (intersperse)
|
|
import Data.Maybe (catMaybes)
|
|
import Data.Time.Clock (UTCTime)
|
|
import Data.Traversable hiding (mapM)
|
|
import DataCon (dataConRepType)
|
|
import Desugar (deSugarExpr)
|
|
import DynFlags
|
|
import ErrUtils
|
|
import Exception
|
|
import FastString
|
|
import GhcMonad
|
|
import HscTypes
|
|
import NameSet
|
|
import OccName
|
|
import Outputable
|
|
import PprTyThing
|
|
import StringBuffer
|
|
import TcType
|
|
import Var (varType)
|
|
import System.Directory
|
|
|
|
import qualified Name
|
|
import qualified InstEnv
|
|
import qualified Pretty
|
|
import qualified StringBuffer as SB
|
|
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
import FamInstEnv
|
|
import ConLike (ConLike(..))
|
|
import PatSyn (patSynType)
|
|
#else
|
|
import TcRnTypes
|
|
#endif
|
|
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
import GHC hiding (ClsInst)
|
|
#else
|
|
import GHC hiding (Instance)
|
|
import Control.Arrow hiding ((<+>))
|
|
import Data.Convertible
|
|
import RdrName (rdrNameOcc)
|
|
#endif
|
|
|
|
#if __GLASGOW_HASKELL__ < 710
|
|
import UniqFM (eltsUFM)
|
|
import Module
|
|
#endif
|
|
|
|
#if __GLASGOW_HASKELL__ >= 704
|
|
import qualified Data.IntSet as I (IntSet, empty)
|
|
#endif
|
|
|
|
import Bag
|
|
import Lexer as L
|
|
import Parser
|
|
import SrcLoc
|
|
import Packages
|
|
|
|
import Language.Haskell.GhcMod.Types (Expression(..))
|
|
import Prelude
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
--
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
type ClsInst = InstEnv.ClsInst
|
|
#else
|
|
type ClsInst = InstEnv.Instance
|
|
#endif
|
|
|
|
mkTarget :: TargetId -> Bool -> Maybe (SB.StringBuffer, UTCTime) -> Target
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
mkTarget = Target
|
|
#else
|
|
mkTarget tid allowObjCode = Target tid allowObjCode . (fmap . second) convert
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
withStyle :: DynFlags -> PprStyle -> SDoc -> Pretty.Doc
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
withStyle = withPprStyleDoc
|
|
#else
|
|
withStyle _ = withPprStyleDoc
|
|
#endif
|
|
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
type GmLogAction = LogAction
|
|
#else
|
|
type GmLogAction = DynFlags -> LogAction
|
|
#endif
|
|
|
|
setLogAction :: DynFlags -> GmLogAction -> DynFlags
|
|
setLogAction df f =
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
df { log_action = f }
|
|
#else
|
|
df { log_action = f df }
|
|
#endif
|
|
|
|
showDocWith :: DynFlags -> Pretty.Mode -> Pretty.Doc -> String
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
-- Pretty.showDocWith disappeard.
|
|
-- https://github.com/ghc/ghc/commit/08a3536e4246e323fbcd8040e0b80001950fe9bc
|
|
showDocWith dflags mode = Pretty.showDoc mode (pprCols dflags)
|
|
#else
|
|
showDocWith _ = Pretty.showDocWith
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
getSrcSpan :: SrcSpan -> Maybe (Int,Int,Int,Int)
|
|
#if __GLASGOW_HASKELL__ >= 702
|
|
getSrcSpan (RealSrcSpan spn)
|
|
#else
|
|
getSrcSpan spn | isGoodSrcSpan spn
|
|
#endif
|
|
= Just (srcSpanStartLine spn
|
|
, srcSpanStartCol spn
|
|
, srcSpanEndLine spn
|
|
, srcSpanEndCol spn)
|
|
getSrcSpan _ = Nothing
|
|
|
|
getSrcFile :: SrcSpan -> Maybe String
|
|
#if __GLASGOW_HASKELL__ >= 702
|
|
getSrcFile (RealSrcSpan spn) = Just . unpackFS . srcSpanFile $ spn
|
|
#else
|
|
getSrcFile spn | isGoodSrcSpan spn = Just . unpackFS . srcSpanFile $ spn
|
|
#endif
|
|
getSrcFile _ = Nothing
|
|
|
|
----------------------------------------------------------------
|
|
|
|
toStringBuffer :: GhcMonad m => [String] -> m StringBuffer
|
|
#if __GLASGOW_HASKELL__ >= 702
|
|
toStringBuffer = return . stringToStringBuffer . unlines
|
|
#else
|
|
toStringBuffer = liftIO . stringToStringBuffer . unlines
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
|
|
fOptions :: [String]
|
|
#if __GLASGOW_HASKELL__ >= 710
|
|
fOptions = [option | (FlagSpec option _ _ _) <- fFlags]
|
|
++ [option | (FlagSpec option _ _ _) <- fWarningFlags]
|
|
++ [option | (FlagSpec option _ _ _) <- fLangFlags]
|
|
#elif __GLASGOW_HASKELL__ >= 704
|
|
fOptions = [option | (option,_,_) <- fFlags]
|
|
++ [option | (option,_,_) <- fWarningFlags]
|
|
++ [option | (option,_,_) <- fLangFlags]
|
|
#else
|
|
fOptions = [option | (option,_,_,_) <- fFlags]
|
|
++ [option | (option,_,_,_) <- fWarningFlags]
|
|
++ [option | (option,_,_,_) <- fLangFlags]
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
fileModSummary :: GhcMonad m => FilePath -> m ModSummary
|
|
fileModSummary file' = do
|
|
mss <- getModuleGraph
|
|
file <- liftIO $ canonicalizePath file'
|
|
[ms] <- liftIO $ flip filterM mss $ \m ->
|
|
(Just file==) <$> canonicalizePath `traverse` ml_hs_file (ms_location m)
|
|
return ms
|
|
|
|
withInteractiveContext :: GhcMonad m => m a -> m a
|
|
withInteractiveContext action = gbracket setup teardown body
|
|
where
|
|
setup = getContext
|
|
teardown = setCtx
|
|
body _ = do
|
|
topImports >>= setCtx
|
|
action
|
|
topImports = do
|
|
ms <- filterM moduleIsInterpreted =<< map ms_mod <$> getModuleGraph
|
|
let iis = map (IIModule . modName) ms
|
|
#if __GLASGOW_HASKELL__ >= 704
|
|
return iis
|
|
#else
|
|
return (iis,[])
|
|
#endif
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
modName = moduleName
|
|
setCtx = setContext
|
|
#elif __GLASGOW_HASKELL__ >= 704
|
|
modName = id
|
|
setCtx = setContext
|
|
#else
|
|
modName = ms_mod
|
|
setCtx = uncurry setContext
|
|
#endif
|
|
|
|
showSeverityCaption :: Severity -> String
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
showSeverityCaption SevWarning = "Warning: "
|
|
showSeverityCaption _ = ""
|
|
#else
|
|
showSeverityCaption = const ""
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
setCabalPkg :: DynFlags -> DynFlags
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
setCabalPkg dflag = gopt_set dflag Opt_BuildingCabalPackage
|
|
#else
|
|
setCabalPkg dflag = dopt_set dflag Opt_BuildingCabalPackage
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
|
|
setHideAllPackages :: DynFlags -> DynFlags
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
setHideAllPackages df = gopt_set df Opt_HideAllPackages
|
|
#else
|
|
setHideAllPackages df = dopt_set df Opt_HideAllPackages
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
|
|
setDumpSplices :: DynFlags -> DynFlags
|
|
setDumpSplices dflag = dopt_set dflag Opt_D_dump_splices
|
|
|
|
isDumpSplices :: DynFlags -> Bool
|
|
isDumpSplices dflag = dopt Opt_D_dump_splices dflag
|
|
|
|
----------------------------------------------------------------
|
|
|
|
|
|
setDeferTypeErrors :: DynFlags -> DynFlags
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
setDeferTypeErrors dflag = gopt_set dflag Opt_DeferTypeErrors
|
|
#elif __GLASGOW_HASKELL__ >= 706
|
|
setDeferTypeErrors dflag = dopt_set dflag Opt_DeferTypeErrors
|
|
#else
|
|
setDeferTypeErrors = id
|
|
#endif
|
|
|
|
setDeferTypedHoles :: DynFlags -> DynFlags
|
|
#if __GLASGOW_HASKELL__ >= 710
|
|
setDeferTypedHoles dflag = gopt_set dflag Opt_DeferTypedHoles
|
|
#else
|
|
setDeferTypedHoles = id
|
|
#endif
|
|
|
|
setWarnTypedHoles :: DynFlags -> DynFlags
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
setWarnTypedHoles dflag = wopt_set dflag Opt_WarnTypedHoles
|
|
#else
|
|
setWarnTypedHoles = id
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
class HasType a where
|
|
getType :: GhcMonad m => TypecheckedModule -> a -> m (Maybe (SrcSpan, Type))
|
|
|
|
|
|
instance HasType (LHsBind Id) where
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
getType _ (L spn FunBind{fun_matches = m}) = return $ Just (spn, typ)
|
|
where in_tys = mg_arg_tys m
|
|
out_typ = mg_res_ty m
|
|
typ = mkFunTys in_tys out_typ
|
|
#else
|
|
getType _ (L spn FunBind{fun_matches = MatchGroup _ typ}) = return $ Just (spn, typ)
|
|
#endif
|
|
getType _ _ = return Nothing
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
-- from ghc/InteractiveUI.hs
|
|
|
|
filterOutChildren :: (a -> TyThing) -> [a] -> [a]
|
|
filterOutChildren get_thing xs
|
|
= [x | x <- xs, not (getName (get_thing x) `elemNameSet` implicits)]
|
|
where
|
|
implicits = mkNameSet [getName t | x <- xs, t <- implicitTyThings (get_thing x)]
|
|
|
|
infoThing :: GhcMonad m => (FilePath -> FilePath) -> Expression -> m SDoc
|
|
infoThing m (Expression str) = do
|
|
names <- parseName str
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
mb_stuffs <- mapM (getInfo False) names
|
|
let filtered = filterOutChildren (\(t,_f,_i,_fam) -> t) (catMaybes mb_stuffs)
|
|
#else
|
|
mb_stuffs <- mapM getInfo names
|
|
let filtered = filterOutChildren (\(t,_f,_i) -> t) (catMaybes mb_stuffs)
|
|
#endif
|
|
return $ vcat (intersperse (text "") $ map (pprInfo m False) filtered)
|
|
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
pprInfo :: (FilePath -> FilePath) -> Bool -> (TyThing, GHC.Fixity, [ClsInst], [FamInst]) -> SDoc
|
|
pprInfo m _ (thing, fixity, insts, famInsts)
|
|
= pprTyThingInContextLoc' thing
|
|
$$ show_fixity fixity
|
|
$$ InstEnv.pprInstances insts
|
|
$$ pprFamInsts famInsts
|
|
#else
|
|
pprInfo :: (FilePath -> FilePath) -> PrintExplicitForalls -> (TyThing, GHC.Fixity, [ClsInst]) -> SDoc
|
|
pprInfo m pefas (thing, fixity, insts)
|
|
= pprTyThingInContextLoc' pefas thing
|
|
$$ show_fixity fixity
|
|
$$ vcat (map pprInstance insts)
|
|
#endif
|
|
where
|
|
show_fixity fx
|
|
| fx == defaultFixity = Outputable.empty
|
|
| otherwise = ppr fx <+> ppr (getName thing)
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
pprTyThingInContextLoc' thing' = hang (pprTyThingInContext thing') 2
|
|
(char '\t' <> ptext (sLit "--") <+> loc)
|
|
where loc = ptext (sLit "Defined") <+> pprNameDefnLoc' (getName thing')
|
|
#else
|
|
pprTyThingInContextLoc' pefas' thing' = hang (pprTyThingInContext pefas' thing') 2
|
|
(char '\t' <> ptext (sLit "--") <+> loc)
|
|
where loc = ptext (sLit "Defined") <+> pprNameDefnLoc' (getName thing')
|
|
#endif
|
|
pprNameDefnLoc' name
|
|
= case Name.nameSrcLoc name of
|
|
RealSrcLoc s -> ptext (sLit "at") <+> ppr (subst s)
|
|
UnhelpfulLoc s
|
|
| Name.isInternalName name || Name.isSystemName name
|
|
-> ptext (sLit "at") <+> ftext s
|
|
| otherwise
|
|
-> ptext (sLit "in") <+> quotes (ppr (nameModule name))
|
|
where subst s = mkRealSrcLoc (realFP s) (srcLocLine s) (srcLocCol s)
|
|
realFP = mkFastString . m . unpackFS . srcLocFile
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
errorMsgSpan :: ErrMsg -> SrcSpan
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
errorMsgSpan = errMsgSpan
|
|
#else
|
|
errorMsgSpan = head . errMsgSpans
|
|
#endif
|
|
|
|
typeForUser :: Type -> SDoc
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
typeForUser = pprTypeForUser
|
|
#else
|
|
typeForUser = pprTypeForUser False
|
|
#endif
|
|
|
|
nameForUser :: Name -> SDoc
|
|
nameForUser = pprOccName . getOccName
|
|
|
|
occNameForUser :: OccName -> SDoc
|
|
occNameForUser = pprOccName
|
|
|
|
deSugar :: TypecheckedModule -> LHsExpr Id -> HscEnv
|
|
-> IO (Maybe CoreExpr)
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
deSugar _ e hs_env = snd <$> deSugarExpr hs_env e
|
|
#else
|
|
deSugar tcm e hs_env = snd <$> deSugarExpr hs_env modu rn_env ty_env e
|
|
where
|
|
modu = ms_mod $ pm_mod_summary $ tm_parsed_module tcm
|
|
tcgEnv = fst $ tm_internals_ tcm
|
|
rn_env = tcg_rdr_env tcgEnv
|
|
ty_env = tcg_type_env tcgEnv
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
data GapThing = GtA Type | GtT TyCon | GtN
|
|
|
|
fromTyThing :: TyThing -> GapThing
|
|
fromTyThing (AnId i) = GtA $ varType i
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
fromTyThing (AConLike (RealDataCon d)) = GtA $ dataConRepType d
|
|
fromTyThing (AConLike (PatSynCon p)) = GtA $ patSynType p
|
|
#else
|
|
fromTyThing (ADataCon d) = GtA $ dataConRepType d
|
|
#endif
|
|
fromTyThing (ATyCon t) = GtT t
|
|
fromTyThing _ = GtN
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
#if __GLASGOW_HASKELL__ >= 704
|
|
type WarnFlags = I.IntSet
|
|
emptyWarnFlags :: WarnFlags
|
|
emptyWarnFlags = I.empty
|
|
#else
|
|
type WarnFlags = [WarningFlag]
|
|
emptyWarnFlags :: WarnFlags
|
|
emptyWarnFlags = []
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
----------------------------------------------------------------
|
|
|
|
#if __GLASGOW_HASKELL__ >= 708
|
|
type GLMatch = LMatch RdrName (LHsExpr RdrName)
|
|
type GLMatchI = LMatch Id (LHsExpr Id)
|
|
#else
|
|
type GLMatch = LMatch RdrName
|
|
type GLMatchI = LMatch Id
|
|
#endif
|
|
|
|
getClass :: [LInstDecl Name] -> Maybe (Name, SrcSpan)
|
|
#if __GLASGOW_HASKELL__ >= 710
|
|
-- Instance declarations of sort 'instance F (G a)'
|
|
getClass [L loc (ClsInstD (ClsInstDecl {cid_poly_ty = (L _ (HsForAllTy _ _ _ _ (L _ (HsAppTy (L _ (HsTyVar className)) _))))}))] = Just (className, loc)
|
|
-- Instance declarations of sort 'instance F G' (no variables)
|
|
getClass [L loc (ClsInstD (ClsInstDecl {cid_poly_ty = (L _ (HsAppTy (L _ (HsTyVar className)) _))}))] = Just (className, loc)
|
|
#elif __GLASGOW_HASKELL__ >= 708
|
|
-- Instance declarations of sort 'instance F (G a)'
|
|
getClass [L loc (ClsInstD (ClsInstDecl {cid_poly_ty = (L _ (HsForAllTy _ _ _ (L _ (HsAppTy (L _ (HsTyVar className)) _))))}))] = Just (className, loc)
|
|
-- Instance declarations of sort 'instance F G' (no variables)
|
|
getClass [L loc (ClsInstD (ClsInstDecl {cid_poly_ty = (L _ (HsAppTy (L _ (HsTyVar className)) _))}))] = Just (className, loc)
|
|
#elif __GLASGOW_HASKELL__ >= 706
|
|
getClass [L loc (ClsInstD (L _ (HsForAllTy _ _ _ (L _ (HsAppTy (L _ (HsTyVar className)) _)))) _ _ _)] = Just (className, loc)
|
|
getClass[L loc (ClsInstD (L _ (HsAppTy (L _ (HsTyVar className)) _)) _ _ _)] = Just (className, loc)
|
|
#else
|
|
getClass [L loc (InstDecl (L _ (HsForAllTy _ _ _ (L _ (HsAppTy (L _ (HsTyVar className)) _)))) _ _ _)] = Just (className, loc)
|
|
getClass [L loc (InstDecl (L _ (HsAppTy (L _ (HsTyVar className)) _)) _ _ _)] = Just (className, loc)
|
|
#endif
|
|
getClass _ = Nothing
|
|
|
|
#if __GLASGOW_HASKELL__ < 706
|
|
occName :: RdrName -> OccName
|
|
occName = rdrNameOcc
|
|
#endif
|
|
|
|
----------------------------------------------------------------
|
|
|
|
#if __GLASGOW_HASKELL__ < 710
|
|
-- Copied from ghc/InteractiveUI.hs
|
|
allExposedPackageConfigs :: DynFlags -> [PackageConfig]
|
|
allExposedPackageConfigs df = filter exposed $ eltsUFM $ pkgIdMap $ pkgState df
|
|
|
|
allExposedModules :: DynFlags -> [ModuleName]
|
|
allExposedModules df = concat $ map exposedModules $ allExposedPackageConfigs df
|
|
|
|
listVisibleModuleNames :: DynFlags -> [ModuleName]
|
|
listVisibleModuleNames = allExposedModules
|
|
#endif
|
|
|
|
lookupModulePackageInAllPackages ::
|
|
DynFlags -> ModuleName -> [String]
|
|
lookupModulePackageInAllPackages df mn =
|
|
#if __GLASGOW_HASKELL__ >= 710
|
|
unpackSPId . sourcePackageId . snd <$> lookupModuleInAllPackages df mn
|
|
where
|
|
unpackSPId (SourcePackageId fs) = unpackFS fs
|
|
#else
|
|
unpackPId . sourcePackageId . fst <$> lookupModuleInAllPackages df mn
|
|
where
|
|
unpackPId pid = packageIdString $ mkPackageId pid
|
|
-- n ++ "-" ++ showVersion v
|
|
#endif
|
|
|
|
listVisibleModules :: DynFlags -> [GHC.Module]
|
|
listVisibleModules df = let
|
|
#if __GLASGOW_HASKELL__ >= 710
|
|
modNames = listVisibleModuleNames df
|
|
mods = [ m | mn <- modNames, (m, _) <- lookupModuleInAllPackages df mn ]
|
|
#else
|
|
pkgCfgs = allExposedPackageConfigs df
|
|
mods = [ mkModule pid modname | p <- pkgCfgs
|
|
, let pid = packageConfigId p
|
|
, modname <- exposedModules p ]
|
|
#endif
|
|
in mods
|
|
|
|
isSynTyCon :: TyCon -> Bool
|
|
#if __GLASGOW_HASKELL__ >= 710
|
|
isSynTyCon = GHC.isTypeSynonymTyCon
|
|
#else
|
|
isSynTyCon = GHC.isSynTyCon
|
|
#endif
|
|
|
|
|
|
parseModuleHeader
|
|
:: String -- ^ Haskell module source text (full Unicode is supported)
|
|
-> DynFlags
|
|
-> FilePath -- ^ the filename (for source locations)
|
|
-> Either ErrorMessages (WarningMessages, Located (HsModule RdrName))
|
|
parseModuleHeader str dflags filename =
|
|
let
|
|
loc = mkRealSrcLoc (mkFastString filename) 1 1
|
|
buf = stringToStringBuffer str
|
|
in
|
|
case L.unP Parser.parseHeader (mkPState dflags buf loc) of
|
|
|
|
PFailed sp err ->
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
Left (unitBag (mkPlainErrMsg dflags sp err))
|
|
#else
|
|
Left (unitBag (mkPlainErrMsg sp err))
|
|
#endif
|
|
|
|
POk pst rdr_module ->
|
|
let (warns,_) = getMessages pst in
|
|
Right (warns, rdr_module)
|
|
|
|
mkErrStyle' :: DynFlags -> PrintUnqualified -> PprStyle
|
|
#if __GLASGOW_HASKELL__ >= 706
|
|
mkErrStyle' = Outputable.mkErrStyle
|
|
#else
|
|
mkErrStyle' _ = Outputable.mkErrStyle
|
|
#endif
|