RosettaCodeData/Task/Classes/Logtalk/classes-1.logtalk

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:- object(metaclass,
instantiates(metaclass)).
:- public(new/2).
new(Instance, Value) :-
self(Class),
create_object(Instance, [instantiates(Class)], [], [state(Value)]).
:- end_object.
:- object(class,
instantiates(metaclass)).
:- public(method/1).
method(Value) :-
::state(Value).
:- private(state/1).
:- end_object.