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fixing the fallback mechanism for info.

This commit is contained in:
Kazu Yamamoto 2014-04-11 11:02:05 +09:00
parent 29eead23b8
commit 1d2cf4cb9f
1 changed files with 3 additions and 1 deletions
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4
Language/Haskell/GhcMod/Info.hs
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@ -20,6 +20,7 @@ import Data.List (sortBy)
import Data.Maybe (catMaybes, fromMaybe, listToMaybe)
import Data.Ord as O
import Data.Time.Clock (getCurrentTime)
import Exception (gcatch, SomeException(..))
import GHC (Ghc, LHsBind, LHsExpr, LPat, Id, TypecheckedModule(..), DynFlags, SrcSpan, Type, Located, TypecheckedSource, GenLocated(L), LoadHowMuch(..), TargetId(..))
import qualified GHC as G
import GHC.SYB.Utils (Stage(TypeChecker), everythingStaged)
@ -160,6 +161,7 @@ inModuleContext _ opt cradle file modstr action errmsg =
modgraph <- G.depanal [G.mkModuleName modstr] True
dflag <- G.getSessionDynFlags
style <- getStyle
-- FIXME: "import (implicit) Prelude"
let imports = concatMap (map (showPage dflag style . ppr . G.unLoc)) $
map ms_imps modgraph ++ map G.ms_srcimps modgraph
moddef = "module " ++ sanitize modstr ++ " where"
@ -173,4 +175,4 @@ inModuleContext _ opt cradle file modstr action errmsg =
sanitize = fromMaybe "SomeModule" . listToMaybe . words
setContextFromTarget :: Ghc Bool
setContextFromTarget = G.depanal [] False >>= Gap.setCtx
setContextFromTarget = (G.depanal [] False >>= Gap.setCtx) `gcatch` \(SomeException _) -> return False