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cond*: Add support for Pcase patterns

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* lisp/emacs-lisp/cond-star.el (cond*): Adjust docstring.
(match*): Prefer `_VAR` syntax.
(cond*-convert-condition): Add support for `pcase*`.
* doc/lispref/control.texi (cond* Macro): Document `pcase*`.
* test/lisp/emacs-lisp/cond-star-tests.el: New file.
This commit is contained in:
Stefan Monnier 2024-10-25 22:26:06 -04:00
parent 574e97575f
commit d44b94a63d
4 changed files with 109 additions and 24 deletions
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test/lisp/emacs-lisp/cond-star-tests.el Normal file
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;;; cond-star-tests.el --- tests for emacs-lisp/cond-star.el -*- lexical-binding:t -*-
;; Copyright (C) 2024 Free Software Foundation, Inc.
;; 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:
;;; Code:
(require 'cond-star)
(require 'ert)
(ert-deftest cond-star-test-1 ()
(should (equal (cond*
((pcase* `(,x . ,y) (cons 5 4)) (list x y))
(t 6))
'(5 4)))
(should (equal (cond*
((pcase* `(,x . ,y) nil) (list x y))
(t 6))
6))
;; FIXME: Not supported.
;; (let* ((z nil)
;; (res (cond*
;; ((pcase* `(,x . ,y) (cons 5 4)) (setq z 6) :non-exit)
;; (t `(,x ,y ,z)))))
;; (should (equal res '(5 4 6))))
(should (equal (cond*
((pcase* `(,x . ,y) (cons 5 4)))
(t (list x y)))
'(5 4)))
(should (equal (cond*
((pcase* `(,x . ,y) nil))
(t (list x y)))
'(nil nil)))
)
;;; cond-star-tests.el ends here