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authorNoam Postavsky <npostavs@gmail.com>2020-04-30 07:54:49 -0400
committerNoam Postavsky <npostavs@gmail.com>2020-05-07 08:23:56 -0400
commitde7158598fcd5440c0180ff6f83052c29e490bcd (patch)
tree8e0c7b89a7c0e6b738228a9b4cba3708bd9d8afe /test/lisp/emacs-lisp
parent2c905fb8a1d95a72e4b8a9b138458c86b099ced1 (diff)
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Revert "cl-loop: Calculate the array length just once"
It fails when using 'and' (parallel bindings) for arrays (Bug#40727). * lisp/emacs-lisp/cl-macs.el (cl--parse-loop-clause): Revert to recomputing array length. * test/lisp/emacs-lisp/cl-macs-tests.el (cl-macs-loop-and-arrays): New test.
Diffstat (limited to 'test/lisp/emacs-lisp')
-rw-r--r--test/lisp/emacs-lisp/cl-macs-tests.el6
1 files changed, 6 insertions, 0 deletions
diff --git a/test/lisp/emacs-lisp/cl-macs-tests.el b/test/lisp/emacs-lisp/cl-macs-tests.el
index 9ca84f156a0..77609a42a99 100644
--- a/test/lisp/emacs-lisp/cl-macs-tests.el
+++ b/test/lisp/emacs-lisp/cl-macs-tests.el
@@ -39,6 +39,12 @@
collect (list c b a))
'((4.0 2 1) (8.3 6 5) (10.4 9 8)))))
+(ert-deftest cl-macs-loop-and-arrays ()
+ "Bug#40727"
+ (should (equal (cl-loop for y = (- (or x 0)) and x across [1 2]
+ collect (cons x y))
+ '((1 . 0) (2 . -1)))))
+
(ert-deftest cl-macs-loop-destructure ()
(should (equal (cl-loop for (a b c) in '((1 2 4.0) (5 6 8.3) (8 9 10.4))
collect (list c b a))