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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{|
Lines 7-8, characters 47-21:
7 | ...............................................match l, r with
8 | | A, B -> "f A B"
Warning 8 [partial-match]: 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{|
Lines 10-11, characters 15-21:
10 | ...............match l, r with
11 | | A, B -> "f A B"
Warning 8 [partial-match]: 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
|}];;
|
