val emit : ?loc:Stdune__Loc0.t -> ?hints:User_message.Style.t Pp.t list -> ?is_error:bool -> User_message.Style.t Pp.t list -> unit
Emit a user warning. The arguments are interpreted in a similar fashion to User_error.raise
except that the first paragraph is prefixed with "Warning: " rather than "Error: ".
If is_error
is true
, then this function behaves exactly the same as User_error.raise
.
val set_reporter : (User_message.t -> unit) -> unit
Set the warning reporter. The default one is User_message.prerr
.