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|
module Add (T : sig type two end) =
struct
type _ t =
| One : [`One] t
| Two : T.two t
let add (type a) : a t * a t -> string = function
| One, One -> "two"
| Two, Two -> "four"
end;;
[%%expect{|
Line _, characters 43-100:
Warning 8: this pattern-matching is not exhaustive.
Here is an example of a case that is not matched:
(Two, One)
module Add :
functor (T : sig type two end) ->
sig
type _ t = One : [ `One ] t | Two : T.two t
val add : 'a t * 'a t -> string
end
|}];;
|
