..
   This file is part of Logtalk <https://logtalk.org/>  
   SPDX-FileCopyrightText: 1998-2024 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.
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       http://www.apache.org/licenses/LICENSE-2.0

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.. rst-class:: align-right

**built-in predicate**

.. index:: pair: abolish_protocol/1; Built-in predicate
.. _predicates_abolish_protocol_1:

``abolish_protocol/1``
======================

Description
-----------

::

   abolish_protocol(Protocol)

Abolishes a dynamic protocol. The protocol identifier can then be reused when creating a new protocol.

Modes and number of proofs
--------------------------

::

   abolish_protocol(@protocol_identifier) - one

Errors
------

| ``Protocol`` is a variable:
|     ``instantiation_error``
| ``Protocol`` is neither a variable nor a valid protocol identifier:
|     ``type_error(protocol_identifier, Protocol)``
| ``Protocol`` is an identifier of a static protocol:
|     ``permission_error(modify, static_protocol, Protocol)``
| ``Protocol`` does not exist:
|     ``existence_error(protocol, Protocol)``

Examples
--------

::

   | ?- abolish_protocol(listp).

.. seealso::

   :ref:`predicates_create_protocol_3`,
   :ref:`predicates_current_protocol_1`,
   :ref:`predicates_protocol_property_2`,
   :ref:`predicates_conforms_to_protocol_2_3`,
   :ref:`predicates_extends_protocol_2_3`,
   :ref:`predicates_implements_protocol_2_3`
