type t =| Atom of Src_pos.Absolute.t * string * string option| List of Src_pos.Absolute.t * t_or_comment list * Src_pos.Absolute.tS-expressions annotated with relative source positions and comments
and t_or_comment =| Sexp of t| Comment of commentand comment =| Plain_comment of Src_pos.Absolute.t * string| Sexp_comment of Src_pos.Absolute.t * comment list * t