* bug#16771: 24.3.50; pcase generates irritating warnings
@ 2014-02-16 20:32 Helmut Eller
2014-02-17 3:27 ` Stefan Monnier
0 siblings, 1 reply; 2+ messages in thread
From: Helmut Eller @ 2014-02-16 20:32 UTC (permalink / raw)
To: 16771
Compiling this example:
;; -*-lexical-binding:t-*-
(eval-when-compile
(require 'pcase))
(defun foo (x)
(pcase x
((and `(,sym)
(guard (symbolp sym)))
t)))
with emacs -batch -f batch-byte-compile foo.el produces this output:
In toplevel form:
foo.el:5:1:Warning: Unused lexical variable `sym'
Wrote /tmp/foo.elc
This warning is annoying as sym is obviously used in the guard
expression and replacing sym with _sym also doesn't help because that
produces
foo.el:5:1:Warning: variable `_sym' not left unused
In GNU Emacs 24.3.50.6 (i686-pc-linux-gnu, GTK+ Version 2.24.10)
of 2014-02-14 on ix
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#16771: 24.3.50; pcase generates irritating warnings
2014-02-16 20:32 bug#16771: 24.3.50; pcase generates irritating warnings Helmut Eller
@ 2014-02-17 3:27 ` Stefan Monnier
0 siblings, 0 replies; 2+ messages in thread
From: Stefan Monnier @ 2014-02-17 3:27 UTC (permalink / raw)
To: Helmut Eller; +Cc: 16771
> This warning is annoying
Agreed. I have the impression we already have a bug-number for this
one, but maybe not.
I don't know yet how to fix this, sadly,
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2014-02-17 3:27 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-02-16 20:32 bug#16771: 24.3.50; pcase generates irritating warnings Helmut Eller
2014-02-17 3:27 ` Stefan Monnier
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.