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|
(* TEST
* expect
*)
class virtual child1 parent =
object
method private parent = parent
end
class virtual child2 =
object(_ : 'self)
constraint 'parent = < previous: 'self option; .. >
method private virtual parent: 'parent
end
(* Worked in 4.03 *)
let _ =
object(self)
method previous = None
method child =
object
inherit child1 self
inherit child2
end
end;;
[%%expect{|
class virtual child1 : 'a -> object method private parent : 'a end
class virtual child2 :
object ('a)
method private virtual parent : < previous : 'a option; .. >
end
- : < child : child1; previous : child1 option > = <obj>
|}]
(* Worked in 4.03 *)
let _ =
object(self)
method previous = None
method child (_ : unit) =
object
inherit child1 self
inherit child2
end
end;;
[%%expect{|
- : < child : unit -> child1; previous : child1 option > = <obj>
|}]
(* Worked in 4.03 *)
let _ =
object(self)
method previous = None
method child () =
object
inherit child1 self
inherit child2
end
end;;
[%%expect{|
- : < child : unit -> child1; previous : child1 option > = <obj>
|}]
(* Didn't work in 4.03, but works in 4.07 *)
let _ =
object(self)
method previous = None
method child =
let o =
object
inherit child1 self
inherit child2
end
in o
end;;
[%%expect{|
- : < child : child1; previous : child1 option > = <obj>
|}]
(* Also didn't work in 4.03 *)
type gadt = Not_really_though : gadt
let _ =
object(self)
method previous = None
method child Not_really_though =
object
inherit child1 self
inherit child2
end
end;;
[%%expect{|
type gadt = Not_really_though : gadt
- : < child : gadt -> child1; previous : child1 option > = <obj>
|}]
|
