ocaml/testobjects/Exemples.exp

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# class point (int) =
val mutable x : int
method get_x : int
method move : int -> unit
end
# val p : point = <obj>
# - : int = 7
# - : unit = ()
# - : int = 10
# val q : point = <obj>
# - : int * int = 10, 17
# class color_point (int) (string) =
val c : string
val mutable x : int
method color : string
method get_x : int
method move : int -> unit
end
# val p' : color_point = <obj>
# - : int * string = 5, "red"
# val l : point list = [<obj>; <obj>]
# val get_x : < get_x : 'a; .. > -> 'a = <fun>
# val set_x : < set_x : 'a; .. > -> 'a = <fun>
# - : int list = [10; 5]
# Characters 6-86:
The type variable 'a is not bound in implicit type definition
ref = < get : 'a; set : 'a -> unit >
It should be captured by a class type parameter
# class ref (int) =
val mutable x : int
method get : int
method set : int -> unit
end
# class 'a ref ('a) =
val mutable x : 'a
method get : 'a
method set : 'a -> unit
end
# - : int = 2
# class 'a circle ('a) =
constraint 'a = < move : int -> unit; .. >
val mutable center : 'a
method center : 'a
method move : int -> unit
method set_center : 'a -> unit
end
# class 'a circle ('a) =
constraint 'a = #point
val mutable center : 'a
method center : 'a
method move : int -> unit
method set_center : 'a -> unit
end
# val c : point circle = <obj>
val c' : color_point circle = <obj>
# class 'a color_circle ('a) =
constraint 'a = #color_point
val mutable center : 'a
method center : 'a
method color : string
method move : int -> unit
method set_center : 'a -> unit
end
# Characters 28-29:
This expression has type point = < get_x : int; move : int -> unit >
but is here used with type
#color_point = < get_x : int; move : int -> unit; color : string; .. >
# val c'' : color_point color_circle = <obj>
# - : color_point circle = <obj>
# Characters 1-4:
This expression cannot be coerced to type
point circle =
< center : point; set_center : point -> unit; move : int -> unit >;
it has type
color_point color_circle =
< center : color_point; set_center : color_point -> unit;
move : int -> unit; color : string >
but is here used with type
< center : color_point; set_center : point -> unit; move : int -> unit;
color : string >
Type color_point = < get_x : int; move : int -> unit; color : string >
is not compatible with type point = < get_x : int; move : int -> unit >
# Characters 9-55:
Type
color_point color_circle =
< center : color_point; set_center : color_point -> unit;
move : int -> unit; color : string >
is not a subtype of type
point circle =
< center : point; set_center : point -> unit; move : int -> unit >
Type color_point -> unit is not a subtype of type point -> unit
Type point = < get_x : int; move : int -> unit > is not a subtype of type
color_point = < get_x : int; move : int -> unit; color : string >
# class printable_point (int) =
val mutable x : int
method get_x : int
method move : int -> unit
method print : unit
end
# val p : printable_point = <obj>
# 7- : unit = ()
# class printable_color_point (int) (string) =
val c : string
val mutable x : int
method color : string
method get_x : int
method move : int -> unit
method print : unit
end
# val p' : printable_color_point = <obj>
# (7, red)- : unit = ()
# class functional_point (int) : 'a =
val x : int
method get_x : int
method move : int -> 'a
end
# val p : functional_point = <obj>
# - : int = 7
# - : int = 10
# - : int = 7
# - : (< get_x : int; move : int -> 'a; .. > as 'a) -> functional_point = <fun>
# class virtual 'a lst (unit) =
virtual hd : 'a
method iter : ('a -> unit) -> unit
method map : ('a -> 'a) -> 'a lst
virtual null : bool
method print : ('a -> unit) -> unit
virtual tl : 'a lst
end
class 'a nil (unit) =
method hd : 'a
method iter : ('a -> unit) -> unit
method map : ('a -> 'a) -> 'a lst
method null : bool
method print : ('a -> unit) -> unit
method tl : 'a lst
end
class 'a cons ('a) ('a lst) =
val h : 'a
val t : 'a lst
method hd : 'a
method iter : ('a -> unit) -> unit
method map : ('a -> 'a) -> 'a lst
method null : bool
method print : ('a -> unit) -> unit
method tl : 'a lst
end
# val l1 : int cons = <obj>
# (3::10::[])- : unit = ()
# val l2 : int lst = <obj>
# (4::11::[])- : unit = ()
# val map_list : ('a -> 'b) -> 'a lst -> 'b lst = <fun>
# val p1 : printable_color_point lst = <obj>
# ((3, red)::(10, red)::[])- : unit = ()
# class virtual comparable (unit) : 'a = virtual leq : 'a -> bool end
# class int_comparable (int) : 'a =
val x : int
method leq : 'a -> bool
method x : int
end
# class int_comparable2 (int) : 'a =
method leq : 'a -> bool
method set_x : int -> unit
method x : int
end
# class 'a sorted_list (unit) =
constraint 'a = #comparable
val mutable l : 'a list
method add : 'a -> unit
method hd : 'a
end
# val l : _#comparable sorted_list = <obj>
# val c : int_comparable = <obj>
# - : unit = ()
# val c2 : int_comparable2 = <obj>
# Characters 7-9:
This expression cannot be coerced to type
int_comparable = < leq : int_comparable -> bool; x : int >;
it has type
int_comparable2 =
< leq : int_comparable2 -> bool; x : int; set_x : int -> unit >
but is here used with type
< leq : int_comparable -> bool; x : int; set_x : int -> unit >
Type
int_comparable2 =
< leq : int_comparable2 -> bool; x : int; set_x : int -> unit >
is not compatible with type
int_comparable = < leq : int_comparable -> bool; x : int >
# - : unit = ()
# class int_comparable3 (int) =
val mutable x : int
method leq : int_comparable -> bool
method setx : int -> unit
method x : int
end
# val c3 : int_comparable3 = <obj>
# - : unit = ()
# Characters 25-27:
This expression has type
int_comparable3 =
< leq : int_comparable -> bool; x : int; setx : int -> unit >
but is here used with type
< leq : 'a -> bool; setx : int -> unit; x : int > as 'a
Type int_comparable = < leq : int_comparable -> bool; x : int >
is not compatible with type
int_comparable3 =
< leq : int_comparable -> bool; x : int; setx : int -> unit >
# val sort : (#comparable as 'a) list -> 'a list = <fun>
# val pr : < x : int; .. > list -> unit = <fun>
# val l : int_comparable list = [<obj>; <obj>; <obj>]
# 5 2 4
- : unit = ()
# 2 4 5
- : unit = ()
# val l : int_comparable2 list = [<obj>; <obj>]
# 2 0
- : unit = ()
# 0 2
- : unit = ()
# val min : (#comparable as 'a) -> 'a -> 'a = <fun>
# - : int = 7
# - : int = 3
# class 'a link ('a) : 'b =
val mutable next : 'b option
val mutable x : 'a
method append : 'b option -> unit
method next : 'b option
method set_next : 'b option -> unit
method set_x : 'a -> unit
method x : 'a
end
# class 'a double_link ('a) : 'b =
val mutable next : 'b option
val mutable prev : 'b option
val mutable x : 'a
method append : 'b option -> unit
method next : 'b option
method prev : 'b option
method set_next : 'b option -> unit
method set_prev : 'b option -> unit
method set_x : 'a -> unit
method x : 'a
end
# val fold_right : ('a -> 'b -> 'b) -> 'a #link option -> 'b -> 'b = <fun>
# class calculator (unit) : 'a =
val mutable acc : float
val mutable arg : float
val mutable equals : 'a -> float
method acc : float
method add : 'a
method arg : float
method enter : float -> 'a
method equals : float
method sub : 'a
end
# - : float = 5
# - : float = 1.5
# - : float = 15
# class calculator (unit) : 'a =
val mutable acc : float
val mutable arg : float
val mutable equals : 'a -> float
method acc : float
method add : 'a
method arg : float
method enter : float -> 'a
method equals : float
method sub : 'a
end
# - : float = 5
# - : float = 1.5
# - : float = 15
# class calculator (float) (float) =
val acc : float
val arg : float
method add : calculator_add
method enter : float -> calculator
method equals : float
method sub : calculator_sub
end
class calculator_add (float) (float) =
val acc : float
val arg : float
method add : calculator_add
method enter : float -> calculator
method equals : float
method sub : calculator_sub
end
class calculator_sub (float) (float) =
val acc : float
val arg : float
method add : calculator_add
method enter : float -> calculator
method equals : float
method sub : calculator_sub
end
# val calculator : calculator = <obj>
# - : float = 5
# - : float = 1.5
# - : float = 15
#