GNU bug report logs - #6275
23.2; warning-suppress-types is void after defadvice

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: SAITO Takuya <tabmore <at> gmail.com>
Subject: bug#6275: closed (Re: bug#6275: 23.2; warning-suppress-types is
 void after defadvice)
Date: Wed, 09 Jun 2010 01:28:03 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#6275: 23.2; warning-suppress-types is void after defadvice

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 6275 <at> debbugs.gnu.org.

-- 
6275: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6275
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: SAITO Takuya <tabmore <at> gmail.com>
Subject: Re: bug#6275: 23.2; warning-suppress-types is void after defadvice
Date: Tue, 08 Jun 2010 21:22:25 -0400

forcemerge 6275 6373
thanks

> Debugger entered--Lisp error: (void-variable warning-suppress-types)
[...]
> ad-compile-function() binds warning-suppress-types with let.
> I guess warnings.el is loaded inside of that let-binding.

Indeed, thank you.  I've installed the patch below which should fix it.


        Stefan


=== modified file 'lisp/emacs-lisp/advice.el'
--- lisp/emacs-lisp/advice.el	2010-02-15 20:03:22 +0000
+++ lisp/emacs-lisp/advice.el	2010-06-09 01:16:08 +0000
@@ -2684,6 +2684,8 @@
       ;; because `byte-compile' uses `fset':
       (ad-with-auto-activation-disabled
        (require 'bytecomp)
+       (require 'warnings)              ;To define warning-suppress-types
+                                        ;before we let-bind it.
        (let ((symbol (make-symbol "advice-compilation"))
 	     (byte-compile-warnings byte-compile-warnings)
              ;; Don't pop up windows showing byte-compiler warnings.

[Message part 3 (message/rfc822, inline)]

From: SAITO Takuya <tabmore <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.2; warning-suppress-types is void after defadvice
Date: Wed, 26 May 2010 23:28:50 +0900 (JST)

Start Emacs-23.2 with "emacs -Q" and evaluate below
with \C-x\C-e in *scratch* buffer:

(defadvice forward-line (before sample activate compile) (setq xxx zzz))

(byte-compile (lambda () (setq xxx zzz)))

then, *Backtrace* buffer is displayed

Debugger entered--Lisp error: (void-variable warning-suppress-types)
  display-warning(bytecomp "Symbol's value as variable is void: warning-suppress-types" :error "*Compile-Log*")
  byte-compile-log-warning("Symbol's value as variable is void: warning-suppress-types" nil :error)
  byte-compile-report-error((void-variable warning-suppress-types))
  byte-compile((lambda nil (setq xxx zzz)))
  eval((byte-compile (lambda nil (setq xxx zzz))))
  eval-last-sexp-1(nil)
  eval-last-sexp(nil)
  call-interactively(eval-last-sexp nil nil)


ad-compile-function() binds warning-suppress-types with let.
I guess warnings.el is loaded inside of that let-binding.



In GNU Emacs 23.2.1 (i386-mingw-nt6.0.6002)
 of 2010-05-08 on G41R2F1
Windowing system distributor `Microsoft Corp.', version 6.0.6002
configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/xpm/include'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: JPN
  value of $XMODIFIERS: nil
  locale-coding-system: cp932
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<help-echo> <help-echo> <down-mouse-1> <mouse-1> C-y 
C-p C-p C-e C-x C-e C-n C-x C-e q M-x r e p o <tab> 
r <tab> <return>

Recent messages:
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Mark set
forward-line
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Back to top level.
Making completion list...

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