include sig ... end
val sexp_of_t : t ‑> Sexplib.Sexp.t
val location : t ‑> Positions.range Base.option
Position of sub_sexp t
in the original source, if found
val report : Caml.Format.formatter ‑> filename:Base.string ‑> t ‑> Base.unit
Similar to Parse_error.report