80c28e1507
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1357 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
45 lines
839 B
Plaintext
45 lines
839 B
Plaintext
=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.25.1
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Copyright (c) 1998-2005 Paulo Moura. All Rights Reserved.
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=================================================================
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% start by loading the necessary library support files (if not
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% already loaded):
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| ?- logtalk_load([library(events_loader), library(types_loader), library(hierarchies_loader)]).
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...
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% now you are ready for loading the example:
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| ?- logtalk_load(roots(loader)).
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...
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% some queries dealing with instance/class hierarchies:
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| ?- object::ancestors(Ancestors).
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Ancestors = [class, abstract_class, object]
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Yes
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| ?- class::instances(Instances).
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Instances = [object, abstract_class, class]
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Yes
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| ?- class::superclass(Super).
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Super = abstract_class ;
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Super = object ;
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No
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