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;;; obarray.el --- obarray functions -*- lexical-binding: t -*-
;; Copyright (C) 2015-2024 Free Software Foundation, Inc.
;; Maintainer: emacs-devel@gnu.org
;; Keywords: obarray functions
;; Package: emacs
;; This file is part of GNU Emacs.
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; This file provides function for working with obarrays.
;;; Code:
(defconst obarray-default-size 4)
(make-obsolete-variable 'obarray-default-size
"obarrays now grow automatically" "30.1")
(defun obarray-size (_ob) obarray-default-size)
(make-obsolete 'obarray-size "obarrays now grow automatically" "30.1")
;; Don’t use obarray as a variable name to avoid shadowing.
(defun obarray-get (ob name)
"Return symbol named NAME if it is contained in obarray OB.
Return nil otherwise."
(intern-soft name ob))
(defun obarray-put (ob name)
"Return symbol named NAME from obarray OB.
Creates and adds the symbol if doesn't exist."
(intern name ob))
(defun obarray-remove (ob name)
"Remove symbol named NAME if it is contained in obarray OB.
Return t on success, nil otherwise."
(unintern name ob))
(defun obarray-map (fn ob)
"Call function FN on every symbol in obarray OB and return nil."
(mapatoms fn ob))
(provide 'obarray)
;;; obarray.el ends here
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