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Pack logtalk -- logtalk-3.77.0/manuals/_sources/refman/predicates/imports_category_2_3.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
built-in predicate
.. index:: pair: imports_category/2-3; Built-in predicate .. _predicates_imports_category_2_3:
imports_category/2-3
::
imports_category(Object, Category)
imports_category(Object, Category, Scope)
Enumerates, by backtracking, importation relations between objects and
categories. The relation scope is represented by the atoms public
,
protected
, and private
.
::
imports_category(?object_identifier, ?category_identifier) - zero_or_more imports_category(?object_identifier, ?category_identifier, ?scope) - zero_or_more
| Object
is neither a variable nor a valid object identifier:
| type_error(object_identifier, Object)
| Category
is neither a variable nor a valid category identifier:
| type_error(category_identifier, Category)
| Scope
is neither a variable nor an atom:
| type_error(atom, Scope)
| Scope
is an atom but an invalid entity scope:
| domain_error(scope, Scope)
::
% check that the xref_diagram object imports the diagram category:
| ?- imports_category(xref_diagram, diagram)
.
% enumerate the objects that privately import the diagram category:
| ?- imports_category(Object, diagram, private)
.
.. seealso::
:ref:predicates_current_category_1
,
:ref:predicates_complements_object_2