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|
(* TEST
expect;
*)
module O (T : sig
module N : sig
val foo : int -> int
end
end) = struct
open T
let go () =
N.foo 42 (* finding N (from T) goes wrong *)
end
module T = struct
module N = struct
let foo x = x + 3
end
end;;
[%%expect{|
module O :
functor (T : sig module N : sig val foo : int -> int end end) ->
sig val go : unit -> int end
module T : sig module N : sig val foo : int -> int end end
|}]
(* Incidentally, M isn't used in T2, but it doesn't seem to fail if
it's just "module M" and "module T2" separately *)
module rec M : sig
val go : unit -> int
end = O (T2)
and T2 : sig
include module type of struct include T end
end = struct
include T
end;;
[%%expect{|
module rec M : sig val go : unit -> int end
and T2 : sig module N = T.N end
|}]
let () = ignore (M.go ())
[%%expect{|
|}]
|
