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Pack logtalk -- logtalk-3.77.0/examples/reflection/NOTES.md

This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2023 Paulo Moura <pmoura@logtalk.org> SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

To load this example and for sample queries, please see the SCRIPT.txt file. Run this example with no other examples loaded at the same time.

This folder contains an example that shows how to implement a reflective class-based system. There are three main classes:

[111, 98, 106, 101, 99, 116]
root of the inheritance graph
[99, 108, 97, 115, 115]
default metaclass for all instantiable classes
[97, 98, 115, 116, 114, 97, 99, 116, 95, 99, 108, 97, 115, 115]
default metaclass for all abstract classes

Each class inherit all the methods form the other two classes and from itself (without any inheritance loops of course ;-).

You can find more sophisticated versions of these classes in the roots example. If you are not familiar with the concept of metaclass used in this example, see the metaclasses example first.