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Logtalk 2.17.2 files.

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pmoura
2004-06-13 18:04:28 +00:00
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41
Logtalk/examples/inheritance/NOTES
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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.17.1
Release 2.17.2
Copyright (c) 1998-2004 Paulo Moura. All Rights Reserved.
=================================================================
To load all objects in this example consult the inheritance.loader utility
file (note that the *.loader files are Prolog files).
This folder contains examples of public, protected and private inheritance,
for both prototypes and classes/instances. The category "predicates" defines
a set of three predicates, one public, one protected and one private. This
category is imported by the root objects: "parent" for the prototypes and
"root" for the classes/instances. Each root object have a set of three
To load all entities in this example compile and load the loader file:
| ?- logtalk_load(loader).
This folder contains examples of public, protected, and private inheritance,
for both prototype-based and class-based hierarchies.
This example defines a category named "predicates" which specifies three
predicates, one public, one protected and one private. This category is
imported by the root objects: "parent" for the prototype hierarchy and
"root" for the class hierarchy. Each root object have a set of three
descendants, each one using one of the inheritance types.
The two object hierarchies are organized as follows:
parent
prototype1 % public inheritance
descendant1
prototype2 % protected inheritance
descendant2
prototype3 % private inheritance
descendant3
root
subclass1 % public inheritance
instance1
subclass2 % protected inheritance
instance2
subclass3 % private inheritance
instance3
A second category named "interface", imported by all objects except the
sub-class instances, allows us to query the objercts about their interfaces.