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-rw-r--r--compiler/GHC/Tc/Deriv/Generate.hs4
1 files changed, 2 insertions, 2 deletions
diff --git a/compiler/GHC/Tc/Deriv/Generate.hs b/compiler/GHC/Tc/Deriv/Generate.hs
index 1fe58c0414..08f6fab20c 100644
--- a/compiler/GHC/Tc/Deriv/Generate.hs
+++ b/compiler/GHC/Tc/Deriv/Generate.hs
@@ -984,7 +984,7 @@ gen_Read_binds get_fixity loc tycon
read_nullary_cons
= case nullary_cons of
[] -> []
- [con] -> [nlHsDo DoExpr (match_con con ++ [noLoc $ mkLastStmt (result_expr con [])])]
+ [con] -> [nlHsDo (DoExpr Nothing) (match_con con ++ [noLoc $ mkLastStmt (result_expr con [])])]
_ -> [nlHsApp (nlHsVar choose_RDR)
(nlList (map mk_pair nullary_cons))]
-- NB For operators the parens around (:=:) are matched by the
@@ -1058,7 +1058,7 @@ gen_Read_binds get_fixity loc tycon
------------------------------------------------------------------------
mk_alt e1 e2 = genOpApp e1 alt_RDR e2 -- e1 +++ e2
mk_parser p ss b = nlHsApps prec_RDR [nlHsIntLit p -- prec p (do { ss ; b })
- , nlHsDo DoExpr (ss ++ [noLoc $ mkLastStmt b])]
+ , nlHsDo (DoExpr Nothing) (ss ++ [noLoc $ mkLastStmt b])]
con_app con as = nlHsVarApps (getRdrName con) as -- con as
result_expr con as = nlHsApp (nlHsVar returnM_RDR) (con_app con as) -- return (con as)