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Diffstat (limited to 'compiler/rename/RnExpr.hs')
| -rw-r--r-- | compiler/rename/RnExpr.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rename/RnExpr.hs b/compiler/rename/RnExpr.hs index 6485c004a6..f2f0685159 100644 --- a/compiler/rename/RnExpr.hs +++ b/compiler/rename/RnExpr.hs @@ -121,11 +121,14 @@ rnUnboundVar v rnExpr (HsVar _ (L l v)) = do { opt_DuplicateRecordFields <- xoptM LangExt.DuplicateRecordFields ; mb_name <- lookupOccRn_overloaded opt_DuplicateRecordFields v + ; dflags <- getDynFlags ; case mb_name of { Nothing -> rnUnboundVar v ; Just (Left name) | name == nilDataConName -- Treat [] as an ExplicitList, so that -- OverloadedLists works correctly + -- Note [Empty lists] in GHC.Hs.Expr + , xopt LangExt.OverloadedLists dflags -> rnExpr (ExplicitList noExtField Nothing []) | otherwise |