304 lines
8.7 KiB
Plaintext
304 lines
8.7 KiB
Plaintext
Objective Caml version 1.02+4
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# class point (int) =
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val mutable x : int
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method get_x : int
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method move : int -> unit
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end
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# val p : point = <obj>
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# - : int = 7
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# - : unit = ()
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# - : int = 10
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# val q : point = <obj>
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# - : int * int = 10, 17
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# class color_point (int) (string) =
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val c : string
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val mutable x : int
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method get_x : int
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method move : int -> unit
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method color : string
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end
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# val p' : color_point = <obj>
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# - : int * string = 5, "red"
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# val l : point list = [<obj>; <obj>]
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# val get_x : < get_x : 'a; .. > -> 'a = <fun>
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# val set_x : < set_x : 'a; .. > -> 'a = <fun>
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# - : int list = [10; 5]
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# Characters 6-86:
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The type variable 'a is not bound in implicit type definition
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ref = < get : 'a; set : 'a -> unit >
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It should be captured by a class type parameter
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# class ref (int) =
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val mutable x : int
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method get : int
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method set : int -> unit
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end
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# class 'a ref ('a) =
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val mutable x : 'a
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method get : 'a
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method set : 'a -> unit
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end
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# - : int = 2
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# class 'a circle ('a) =
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constraint 'a = < move : int -> unit; .. >
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val mutable center : 'a
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method center : 'a
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method set_center : 'a -> unit
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method move : int -> unit
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end
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# class 'a circle ('a) =
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constraint 'a = #point
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val mutable center : 'a
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method center : 'a
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method set_center : 'a -> unit
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method move : int -> unit
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end
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# val c : point circle = <obj>
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val c' : color_point circle = <obj>
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# class 'a color_circle ('a) =
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constraint 'a = #color_point
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val mutable center : 'a
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method center : 'a
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method set_center : 'a -> unit
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method move : int -> unit
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method color : string
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end
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# Characters 28-29:
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This expression has type point = < get_x : int; move : int -> unit >
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but is here used with type
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#color_point = < get_x : int; move : int -> unit; color : string; .. >
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# val c'' : color_point color_circle = <obj>
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# - : color_point circle = <obj>
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# Characters 1-4:
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This expression cannot be coerced to type
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point circle =
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< center : point; set_center : point -> unit; move : int -> unit >;
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it has type
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color_point color_circle =
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< center : color_point; set_center : color_point -> unit;
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move : int -> unit; color : string >
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but is here used with type
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< center : color_point; set_center : point -> unit; move : int -> unit;
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color : string >
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Type color_point = < get_x : int; move : int -> unit; color : string >
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is not compatible with type point = < get_x : int; move : int -> unit >
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# Characters 9-55:
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Type
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color_point color_circle =
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< center : color_point; set_center : color_point -> unit;
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move : int -> unit; color : string >
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is not a subtype of type
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point circle =
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< center : point; set_center : point -> unit; move : int -> unit >
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Type color_point -> unit is not a subtype of type point -> unit
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Type point = < get_x : int; move : int -> unit > is not a subtype of type
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color_point = < get_x : int; move : int -> unit; color : string >
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# class printable_point (int) =
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val mutable x : int
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method get_x : int
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method move : int -> unit
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method print : unit
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end
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# val p : printable_point = <obj>
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# 7- : unit = ()
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# class printable_color_point (int) (string) =
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val c : string
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val mutable x : int
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method get_x : int
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method move : int -> unit
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method color : string
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method print : unit
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end
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# val p' : printable_color_point = <obj>
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# (7, red)- : unit = ()
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# class functional_point (int) : 'a =
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val x : int
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method get_x : int
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method move : int -> 'a
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end
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# val p : functional_point = <obj>
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# - : int = 7
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# - : int = 10
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# - : int = 7
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# - : (< get_x : int; move : int -> 'a; .. > as 'a) -> functional_point = <fun>
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# class virtual 'a lst (unit) =
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method map : ('a -> 'a) -> 'a lst
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method iter : ('a -> unit) -> unit
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method print : ('a -> unit) -> unit
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virtual null : bool
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virtual hd : 'a
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virtual tl : 'a lst
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end
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class 'a nil (unit) =
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method null : bool
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method hd : 'a
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method tl : 'a lst
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method map : ('a -> 'a) -> 'a lst
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method iter : ('a -> unit) -> unit
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method print : ('a -> unit) -> unit
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end
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class 'a cons ('a) ('a lst) =
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val h : 'a
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val t : 'a lst
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method null : bool
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method hd : 'a
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method tl : 'a lst
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method map : ('a -> 'a) -> 'a lst
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method iter : ('a -> unit) -> unit
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method print : ('a -> unit) -> unit
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end
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# val l1 : int cons = <obj>
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# (3::10::[])- : unit = ()
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# val l2 : int lst = <obj>
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# (4::11::[])- : unit = ()
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# val map_list : ('a -> 'b) -> 'a lst -> 'b lst = <fun>
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# val p1 : printable_color_point lst = <obj>
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# ((3, red)::(10, red)::[])- : unit = ()
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# class virtual comparable (unit) : 'a = virtual leq : 'a -> bool end
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# class int_comparable (int) : 'a =
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val x : int
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method leq : 'a -> bool
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method x : int
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end
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# class int_comparable2 (int) : 'a =
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method leq : 'a -> bool
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method x : int
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method set_x : int -> unit
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end
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# class 'a sorted_list (unit) =
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constraint 'a = #comparable
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val mutable l : 'a list
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method add : 'a -> unit
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method hd : 'a
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end
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# val l : _#comparable sorted_list = <obj>
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# val c : int_comparable = <obj>
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# - : unit = ()
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# val c2 : int_comparable2 = <obj>
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# Characters 7-9:
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This expression cannot be coerced to type
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int_comparable = < leq : int_comparable -> bool; x : int >;
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it has type
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int_comparable2 =
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< leq : int_comparable2 -> bool; x : int; set_x : int -> unit >
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but is here used with type
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< leq : int_comparable -> bool; x : int; set_x : int -> unit >
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Type
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int_comparable2 =
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< leq : int_comparable2 -> bool; x : int; set_x : int -> unit >
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is not compatible with type
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int_comparable = < leq : int_comparable -> bool; x : int >
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# - : unit = ()
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# class int_comparable3 (int) =
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val mutable x : int
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method leq : int_comparable -> bool
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method x : int
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method setx : int -> unit
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end
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# val c3 : int_comparable3 = <obj>
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# - : unit = ()
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# Characters 25-27:
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This expression has type
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int_comparable3 =
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< leq : int_comparable -> bool; x : int; setx : int -> unit >
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but is here used with type
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< leq : 'a -> bool; setx : int -> unit; x : int > as 'a
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Type int_comparable = < leq : int_comparable -> bool; x : int >
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is not compatible with type
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int_comparable3 =
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< leq : int_comparable -> bool; x : int; setx : int -> unit >
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# val sort : (#comparable as 'a) list -> 'a list = <fun>
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# val pr : < x : int; .. > list -> unit = <fun>
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# val l : int_comparable list = [<obj>; <obj>; <obj>]
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# 5 2 4
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- : unit = ()
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# 2 4 5
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- : unit = ()
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# val l : int_comparable2 list = [<obj>; <obj>]
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# 2 0
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- : unit = ()
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# 0 2
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- : unit = ()
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# val min : (#comparable as 'a) -> 'a -> 'a = <fun>
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# - : int = 7
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# - : int = 3
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# class 'a link ('a) : 'b =
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val mutable next : 'b option
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val mutable x : 'a
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method x : 'a
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method next : 'b option
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method set_x : 'a -> unit
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method set_next : 'b option -> unit
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method append : 'b option -> unit
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end
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# class 'a double_link ('a) : 'b =
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val mutable next : 'b option
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val mutable prev : 'b option
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val mutable x : 'a
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method x : 'a
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method next : 'b option
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method set_x : 'a -> unit
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method set_next : 'b option -> unit
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method append : 'b option -> unit
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method prev : 'b option
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method set_prev : 'b option -> unit
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end
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# val fold_right : ('a -> 'b -> 'b) -> 'a #link option -> 'b -> 'b = <fun>
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# class calculator (unit) : 'a =
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val mutable acc : float
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val mutable arg : float
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val mutable equals : 'a -> float
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method arg : float
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method acc : float
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method add : 'a
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method enter : float -> 'a
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method equals : float
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method sub : 'a
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end
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# - : float = 5
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# - : float = 1.5
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# - : float = 15
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# class calculator (unit) : 'a =
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val mutable acc : float
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val mutable arg : float
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val mutable equals : 'a -> float
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method arg : float
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method acc : float
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method add : 'a
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method enter : float -> 'a
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method equals : float
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method sub : 'a
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end
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# - : float = 5
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# - : float = 1.5
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# - : float = 15
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# class calculator (float) (float) =
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val acc : float
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val arg : float
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method enter : float -> calculator
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method add : calculator_add
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method sub : calculator_sub
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method equals : float
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end
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class calculator_add (float) (float) =
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val acc : float
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val arg : float
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method enter : float -> calculator
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method add : calculator_add
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method sub : calculator_sub
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method equals : float
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end
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class calculator_sub (float) (float) =
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val acc : float
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val arg : float
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method enter : float -> calculator
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method add : calculator_add
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method sub : calculator_sub
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method equals : float
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end
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# val calculator : calculator = <obj>
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# - : float = 5
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# - : float = 1.5
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# - : float = 15
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#
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