diff options
Diffstat (limited to 'compiler/GHC/Rename/Env.hs')
| -rw-r--r-- | compiler/GHC/Rename/Env.hs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/compiler/GHC/Rename/Env.hs b/compiler/GHC/Rename/Env.hs index f742e60311..3e99b18e20 100644 --- a/compiler/GHC/Rename/Env.hs +++ b/compiler/GHC/Rename/Env.hs @@ -102,6 +102,7 @@ import qualified Data.List.NonEmpty as NE import Control.Arrow ( first ) import Data.Function import GHC.Types.FieldLabel +import GHC.Data.Bag {- ********************************************************* @@ -1568,7 +1569,7 @@ addUsedGREs gres warnIfDeprecated :: GlobalRdrElt -> RnM () warnIfDeprecated gre@(GRE { gre_imp = iss }) - | (imp_spec : _) <- iss + | Just imp_spec <- headMaybe iss = do { dflags <- getDynFlags ; this_mod <- getModule ; when (wopt Opt_WarnWarningsDeprecations dflags && @@ -1689,7 +1690,7 @@ lookupOneQualifiedNameGHCi fos rdr_name = do -- -fimplicit-import-qualified is used with a module that exports the same -- field name multiple times (see -- Note [DuplicateRecordFields and -fimplicit-import-qualified]). - toGRE gname = GRE { gre_name = gname, gre_par = NoParent, gre_lcl = False, gre_imp = [is] } + toGRE gname = GRE { gre_name = gname, gre_par = NoParent, gre_lcl = False, gre_imp = unitBag is } is = ImpSpec { is_decl = ImpDeclSpec { is_mod = mod, is_as = mod, is_qual = True, is_dloc = noSrcSpan } , is_item = ImpAll } -- If -fimplicit-import-qualified succeeded, the name must be qualified. |