GNU bug report logs - #14705
24.3.50; "Not a face" error from enable-theme

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Sebastian Wiesner <lunaryorn <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.50; "Not a face" error from enable-theme
Date: Mon, 24 Jun 2013 17:50:59 +0200

"enable-theme" signals a "Not a face" error if the color theme tries to
set a face which is currently not defined.  In "emacs -Q"

M-: (setq debug-on-error t)
M-: (load-theme 'wombat :no-confirm)

gives the following back trace:

Debugger entered--Lisp error: (error "Not a face: message-separator")
  signal(error ("Not a face: message-separator"))
  error("Not a face: %s" message-separator)
  check-face(message-separator)
  face-spec-recalc(message-separator #<frame F1 0x10181c238>)
  custom-theme-recalc-face(message-separator)
  enable-theme(wombat)
  load-theme(wombat :no-confirm)
  eval((load-theme (quote wombat) :no-confirm) nil)
  eval-expression((load-theme (quote wombat) :no-confirm) nil)
  call-interactively(eval-expression nil nil)
  command-execute(eval-expression)

This breaks *any* color theme, even the ones included in Emacs, because
all themes define faces which do not exists, e.g. because the
corresponding package is not yet loaded, or not even installed.

Message #10 received at 14705-done <at> debbugs.gnu.org (full text, mbox):

From: Juanma Barranquero <lekktu <at> gmail.com>
To: Sebastian Wiesner <lunaryorn <at> gmail.com>
Cc: 14705-done <at> debbugs.gnu.org
Subject: Re: bug#14705: 24.3.50; "Not a face" error from enable-theme
Date: Mon, 24 Jun 2013 18:09:23 +0200

On Mon, Jun 24, 2013 at 5:50 PM, Sebastian Wiesner <lunaryorn <at> gmail.com> wrote:

> Debugger entered--Lisp error: (error "Not a face: message-separator")
>   signal(error ("Not a face: message-separator"))
>   error("Not a face: %s" message-separator)
>   check-face(message-separator)
>   face-spec-recalc(message-separator #<frame F1 0x10181c238>)

I've reverted a change of mine in face-spec-recalc that causes this bug.

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