fix(outcome-printer): wrap uncurried fn type arguments in parens

rescript-lang · Jul 7, 2023 · cce6278 · cce6278
1 parent cd56969
commit cce6278
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/jscomp/syntax/src/res_outcome_printer.ml b/jscomp/syntax/src/res_outcome_printer.ml
@@ -354,7 +354,7 @@ and printOutArrowType ~uncurried typ =
     let needsParens =
       match typArgs with
       | _ when uncurried -> true
-      | [(_, (Otyp_tuple _ | Otyp_arrow _))] -> true
+      | [(_, (Otyp_tuple _ | Otyp_arrow _ | Otyp_constr (Oide_ident "function$", [(Otyp_arrow _); _])))] -> true
       (* single argument should not be wrapped *)
       | [("", _)] -> false
       | _ -> true