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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1175 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
25 lines
1.0 KiB
Plaintext
25 lines
1.0 KiB
Plaintext
=================================================================
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Logtalk - Object oriented extension to Prolog
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Release 2.21.6
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Copyright (c) 1998-2004 Paulo Moura. All Rights Reserved.
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=================================================================
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To load all entities in this example compile and load the loader file:
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| ?- logtalk_load(loader).
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Example adopted from the paper "Classifying Prototype-Based Programming
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Languages" by Christophe Dony, Jacques Malenfant and Daniel Bardou.
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This prototype programming example ilustrates how we can do both property
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sharing and value sharing in Logtalk by calling the built-in predicate
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modification methods asserta/1, assertz/1 and retract/1 either in the
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context of "this" or in the context of "self".
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In this example we have a prototype named joePerson, containing general
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data on joe like its age, name or address, and three descendants/viewpoints
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named joeSportsman, joeEmployee, joeChessPlayer, and joeFilmEnthusiast. Each
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descendant contains data related to a particular viewpoint about joe.
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