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Diffstat (limited to 'compiler/GHC/Tc/Instance/Class.hs')
| -rw-r--r-- | compiler/GHC/Tc/Instance/Class.hs | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/compiler/GHC/Tc/Instance/Class.hs b/compiler/GHC/Tc/Instance/Class.hs index f2f4065bc0..f0c6d17aaa 100644 --- a/compiler/GHC/Tc/Instance/Class.hs +++ b/compiler/GHC/Tc/Instance/Class.hs @@ -354,9 +354,7 @@ matchKnownNat :: DynFlags -- See Note [Shortcut solving: overlap] -> Class -> [Type] -> TcM ClsInstResult matchKnownNat _ _ clas [ty] -- clas = KnownNat - | Just n <- isNumLitTy ty = do - et <- mkNaturalExpr n - makeLitDict clas ty et + | Just n <- isNumLitTy ty = makeLitDict clas ty (mkNaturalExpr n) matchKnownNat df sc clas tys = matchInstEnv df sc clas tys -- See Note [Fabricating Evidence for Literals in Backpack] for why -- this lookup into the instance environment is required. |