Reason · Reason lets you write simple, fast and quality type safe code while leveraging both the JavaScript & OCaml ecosystems.

sig
 type t = Printexc.backtrace_slot
 val is_raise : Printexc.Slot.t -> bool
 val is_inline : Printexc.Slot.t -> bool
 val location : Printexc.Slot.t -> Printexc.location option
 val name : Printexc.Slot.t -> string option
 val format : int -> Printexc.Slot.t -> string option
end