From: Michael Heerdegen <michael_heerdegen@web.de>
To: emacs-devel@gnu.org
Subject: pcase-memoize: equal first branch, yet different
Date: Fri, 01 Mar 2013 16:17:55 +0100 [thread overview]
Message-ID: <87hakv6tek.fsf@web.de> (raw)
Hi,
I get a not so useful message using `pcase' in the following scenario
using trunk:
I want to control "dired-sort-menu.el" from the mode-line in dired
buffers. I want the mode-line to display diverse "ls" flags, the
enabled flags are highlighted, and clicking on a flag turns the sort
order.
I added this expression to the mode-line:
'("D["
(:eval (my-dired-flags-in-ml-flag-string "-"))
(:eval (my-dired-flags-in-ml-flag-string "t"))
(:eval (my-dired-flags-in-ml-flag-string "S"))
"|"
(:eval (my-dired-flags-in-ml-flag-string "r"))
"]")
("D" stands for "dired") whereby
--8<---------------cut here---------------start------------->8---
(defun my-dired-flags-in-ml-flag-string (flag)
"FLAG is a string of one char."
`(:propertize ,flag
face ,(if (pcase flag
(`"-" (not (dired-sort-menu-switch-p "[tSXUuc]")))
(_ (string-match-p flag dired-actual-switches)))
'mode-line-bold nil)
help-echo ,(pcase flag
(`"-" "Sort by name")
(`"t" "Sort by time")
(`"S" "Sort by size")
(`"r" "Reverse sort order"))
keymap ,(make-mode-line-mouse-map
'mouse-2
`(lambda (_event)
(interactive "e")
(pcase ,flag
(`"-" (dired-sort-menu-set-switches ""))
((or `"t" `"S")
(dired-sort-menu-set-switches ,flag))
(`"r"
(dired-sort-menu-toggle-reverse)))))))
--8<---------------cut here---------------end--------------->8---
This works well, but every time I click on a flag, I get this message:
| pcase-memoize: equal first branch, yet different
What does that mean? It's annoying.
Thanks,
Michael.
next reply other threads:[~2013-03-01 15:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-01 15:17 Michael Heerdegen [this message]
2013-03-01 21:45 ` pcase-memoize: equal first branch, yet different Michael Heerdegen
2013-03-04 19:33 ` Stefan Monnier
2013-03-05 9:59 ` Ted Zlatanov
2013-03-05 15:41 ` Stefan Monnier
2013-03-05 19:03 ` Ted Zlatanov
2013-03-05 14:13 ` Michael Heerdegen
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