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![]() | Pack logtalk -- logtalk-3.81.0/manuals/_sources/refman/directives/multifile_1.rst.txt |
.. 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. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
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.. rst-class:: align-right
directive
.. index:: pair: multifile/1; Directive .. _directives_multifile_1:
::
multifile(Name/Arity)
multifile((Name/Arity, ...))
multifile([Name/Arity, ...])
multifile(Entity::Name/Arity) multifile((Entity::Name/Arity, ...)) multifile([Entity::Name/Arity, ...])
multifile(Module:Name/Arity)
multifile((Module:Name/Arity, ...))
multifile([Module:Name/Arity, ...])
multifile(Name//Arity)
multifile((Name//Arity, ...))
multifile([Name//Arity, ...])
multifile(Entity::Name//Arity) multifile((Entity::Name//Arity, ...)) multifile([Entity::Name//Arity, ...])
multifile(Module:Name//Arity)
multifile((Module:Name//Arity, ...))
multifile([Module:Name//Arity, ...])
Declares :term:`multifile <multifile predicate>` predicates and multifile
grammar rule non-terminals. In the case of object or category multifile
predicates, the predicate (or non-terminal) must also have a
:term:`scope directive <predicate scope directive>` in the object or category
holding its primary declaration (i.e. the declaration without the
Entity::
prefix). Entities holding multifile predicate primary
declarations must be compiled and loaded prior to any entities contributing
with clauses for the multifile predicates (to prevent using multifile
predicates to break entity encapsulation).
Protocols cannot declare or define multifile predicates as protocols cannot contain predicate definitions.
.. warning::
Some backend Prolog compilers declare the atom multifile
as an
operator for a lighter syntax. But this makes the code non-portable
and is therefore a practice best avoided.
::
multifile(+qualified_predicate_indicator_term)
multifile(+qualified_non_terminal_indicator_term)
::
:- multifile(table/3). :- multifile(user::hook/2).
.. seealso::
:ref:directives_public_1
,
:ref:directives_protected_1
,
:ref:directives_private_1
,
:ref:methods_predicate_property_2