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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

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.. rst-class:: align-right

directive

.. index:: pair: private/1; Directive .. _directives_private_1:

private/1

Description

::

private(Name/Arity) private((Name/Arity, ...)) private([Name/Arity, ...])

private(Name//Arity) private((Name//Arity, ...)) private([Name//Arity, ...])

private(op(Precedence,Associativity,Operator)) private((op(Precedence,Associativity,Operator), ...)) private([op(Precedence,Associativity,Operator), ...])

Declares :term:`private <private predicate>` predicates, private grammar rule non-terminals, and private operators. A private predicate can only be called from the object containing the private directive. A private non-terminal can only be used in a call of the :ref:methods_phrase_2 and :ref:methods_phrase_3 methods from the object containing the private directive.

Template and modes

::

private(+predicate_indicator_term) private(+non_terminal_indicator_term) private(+operator_declaration)

Examples

::

:- private(counter/1).

:- private((init/1, free/1)).

:- private([data/3, key/1, keys/1]).

.. seealso::

:ref:directives_protected_1, :ref:directives_public_1, :ref:methods_predicate_property_2