755c60a7ca
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1244 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
20 lines
909 B
Plaintext
20 lines
909 B
Plaintext
=================================================================
|
|
Logtalk - Object oriented extension to Prolog
|
|
Release 2.22.5
|
|
|
|
Copyright (c) 1998-2005 Paulo Moura. All Rights Reserved.
|
|
=================================================================
|
|
|
|
|
|
To load this example and for sample queries, please see the SCRIPT file.
|
|
|
|
This folder contains an example that shows how to implement class variables
|
|
as defined in Smalltalk. The name shared instance variables is however much
|
|
more accurate. In systems like Logtalk that enable the use of explicit
|
|
metaclasses, true class variables are just the class (as an object) own
|
|
instance variables!
|
|
|
|
This example defines a root class (root) and three instances (instance1,
|
|
instance2, and instance3). The root class defines a shared instance variable
|
|
(using a dynamic predicate) and the setter and getter methods which implement
|
|
the variable sharing behavior. |