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Fix #1868: Merlin typed-hole formatted incorrectly #1891

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Fix #1868: Merlin typed-hole formatted incorrectly #1891

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2 changes: 2 additions & 0 deletions src/reason-parser/reason_pprint_ast.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -1760,6 +1760,8 @@ let typeApplicationFinalWrapping typeApplicationItems =

(* add parentheses to binders when they are in fact infix or prefix operators *)
let protectIdentifier txt =
(* (??) is a typed-hole in Merlin *)
if txt = "??" then atom "(??)" else
if not (needs_parens txt) then atom txt
else if needs_spaces txt then makeList ~wrap:("(", ")") ~pad:(true, true) [atom txt]
else atom ("(" ^ txt ^ ")")
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