src/Pure/ML/exn_output_polyml.ML

suppress empty messages as usual;

(*  Title:      Pure/ML/exn_output_polyml.ML
    Author:     Makarius

Auxiliary operations for exception output -- Poly/ML version.
*)

structure Exn_Output: EXN_OUTPUT =
struct

fun position exn =
  (case PolyML.exceptionLocation exn of
    NONE => Position.none
  | SOME loc => Exn_Properties.position_of loc);

fun pretty (exn: exn) =
  Pretty.from_ML (pretty_ml (PolyML.prettyRepresentation (exn, ML_Options.get_print_depth ())));

end;