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(* TEST
flags = " -w -a ";
setup-ocamlc.byte-build-env;
ocamlc.byte;
check-ocamlc.byte-output;
*)
module Classdef = struct
class virtual ['a, 'b, 'c] cl0 =
object
constraint 'c = < m : 'a -> 'b -> int; .. >
end
class virtual ['a, 'b] cl1 =
object
method virtual raise_trouble : int -> 'a
method virtual m : 'a -> 'b -> int
end
class virtual ['a, 'b] cl2 =
object
method virtual as_cl0 : ('a, 'b, ('a, 'b) cl1) cl0
end
end
module M : sig
type refer = { poly : 'a 'b 'c . (('b, 'c) #Classdef.cl2 as 'a) }
end = struct
type refer = { poly : 'a 'b 'c . (('b, 'c) #Classdef.cl2 as 'a) }
end
type refer1 = < poly : 'a 'b 'c . (('b, 'c) #Classdef.cl2 as 'a) >
type refer2 = < poly : 'a 'b 'c . (('b, 'c) #Classdef.cl2 as 'a) >
(* Now this works too *)
let f (x : refer1) = (x : refer2)
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