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/*
This source file defines the following prototype-based hierarchy:
parent
prototype1
descendant1
prototype2
descendant2
prototype3
descendant3
The root object imports the category "predicates", which defines one
public predicate, public/0, one protected predicate, protected/0, and
one private predicate, private/0.
All objects import the category "interface", which defines a predicate,
interface/0, for listing the object interface.
*/
:- object(parent,
imports(predicates, interface)).
:- end_object.
% public inheritance:
% parent predicates will be inherited without scope changes
:- object(prototype1,
imports(interface),
extends(public::parent)).
:- end_object.
:- object(descendant1,
imports(interface),
extends(prototype1)).
:- end_object.
% protected inheritance:
% parent public predicates will be inherited as protected predicates
:- object(prototype2,
imports(interface),
extends(protected::parent)).
:- end_object.
:- object(descendant2,
imports(interface),
extends(prototype2)).
:- end_object.
% private inheritance:
% parent predicates will be inherited as private predicates
:- object(prototype3,
imports(interface),
extends(private::parent)).
:- end_object.
:- object(descendant3,
imports(interface),
extends(prototype3)).
:- end_object.
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