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|
(* TEST
* expect
*)
module F(S : sig type 'a t end) = struct
type _ ab =
A : int S.t ab
| B : float S.t ab
let f : int S.t ab -> float S.t ab -> string =
fun (l : int S.t ab) (r : float S.t ab) -> match l, r with
| A, B -> "f A B"
end;;
[%%expect{|
Line _, characters 47-84:
...............................................match l, r with
| A, B -> "f A B"
Warning 8: this pattern-matching is not exhaustive.
Here is an example of a case that is not matched:
(A, A)
module F :
functor (S : sig type 'a t end) ->
sig
type _ ab = A : int S.t ab | B : float S.t ab
val f : int S.t ab -> float S.t ab -> string
end
|}];;
module F(S : sig type 'a t end) = struct
type a = int * int
type b = int -> int
type _ ab =
A : a S.t ab
| B : b S.t ab
let f : a S.t ab -> b S.t ab -> string =
fun l r -> match l, r with
| A, B -> "f A B"
end;;
[%%expect{|
Line _, characters 15-52:
...............match l, r with
| A, B -> "f A B"
Warning 8: this pattern-matching is not exhaustive.
Here is an example of a case that is not matched:
(A, A)
module F :
functor (S : sig type 'a t end) ->
sig
type a = int * int
type b = int -> int
type _ ab = A : a S.t ab | B : b S.t ab
val f : a S.t ab -> b S.t ab -> string
end
|}];;
|
