type t = Warnings.loc = {loc_start : Stdlib.Lexing.position; | 
loc_end : Stdlib.Lexing.position; | 
loc_ghost : Base.Bool.t; | 
}val in_file : Base.String.t -> tReturn an empty ghost range located in a given file.
val none : tAn arbitrary value of type t; describes an empty ghost range.
val raise_errorf : ?loc:t -> ('a, Caml.Format.formatter, Base.Unit.t, 'b) Stdlib.format4 -> 'aRaise a located error. The exception is caught by driver and handled appropriately
val of_lexbuf : Stdlib.Lexing.lexbuf -> tReturn the location corresponding to the last matched regular expression
val report_exception : Caml.Format.formatter -> Base.Exn.t -> Base.Unit.tReport an exception on the given formatter
val print : Caml.Format.formatter -> t -> Base.Unit.tPrints File "...", line ..., characters ...-...:
val compare_pos : Stdlib.Lexing.position -> Stdlib.Lexing.position -> Base.Int.tval min_pos : Stdlib.Lexing.position -> Stdlib.Lexing.position -> Stdlib.Lexing.positionval max_pos : Stdlib.Lexing.position -> Stdlib.Lexing.position -> Stdlib.Lexing.positionval compare : t -> t -> Base.Int.texception Error of Error.t