GNU bug report logs - #6991
Please keep bytecode out of *Backtrace* buffers

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: jidanni <at> jidanni.org
Subject: bug#6991: closed (Re: bug#6991: Please keep bytecode out of
 *Backtrace* buffers)
Date: Mon, 02 Jul 2012 18:44:02 +0000

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

Your bug report

#6991: Please keep bytecode out of *Backtrace* buffers

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 6991 <at> debbugs.gnu.org.

-- 
6991: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=6991
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: "Drew Adams" <drew.adams <at> oracle.com>
Cc: 'Juanma Barranquero' <lekktu <at> gmail.com>, 6991-done <at> debbugs.gnu.org,
	6991 <at> debbugs.gnu.org
Subject: Re: bug#6991: Please keep bytecode out of *Backtrace* buffers
Date: Mon, 02 Jul 2012 14:38:40 -0400

>> > Why?  No reason given.  This is a reasonable request, which 
>> > would improve correspondence about bugs and user difficulties.
> And no response to that question.  I've reopened this bug.

You can try the simple patch below.  It doesn't cut it for me, and
I think the only way to make it work well would be to change the
representation of the byte-codes so that they're not just a "unibyte
string" but an object with a distinctive type: the patch only catches
the case where the byte-codes appear within a printed
byte-compiled-function, not when they're arguments to the `byte-code'
function or to the `make-byte-code' function, and I'm sure there can be
other cases.


        Stefan


=== modified file 'src/print.c'
--- src/print.c	2012-06-28 11:11:48 +0000
+++ src/print.c	2012-07-02 18:37:46 +0000
@@ -1937,8 +1937,11 @@
       else
 	{
 	  ptrdiff_t size = ASIZE (obj);
+	  int bytecode = 0;
+
 	  if (COMPILEDP (obj))
 	    {
 	      PRINTCHAR ('#');
+	      bytecode = 1;
 	      size &= PSEUDOVECTOR_SIZE_MASK;
 	    }
@@ -1978,6 +1981,9 @@
 	      {
 		if (i) PRINTCHAR (' ');
 		tem = AREF (obj, i);
+		if (bytecode && i == 1 && INTEGERP (Vprint_level))
+		  strout ("\"..<bytecode>..\"", 16, 16, printcharfun);
+		else
 		print_object (tem, printcharfun, escapeflag);
 	      }
 	    if (size < real_size)

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

From: jidanni <at> jidanni.org
To: bug-gnu-emacs <at> gnu.org
Subject: Please keep bytecode out of *Backtrace* buffers
Date: Tue, 07 Sep 2010 09:35:10 +0800

Please keep bytecode out of *Backtrace* buffers.
* It is unreadable.
* It will cause problems when sent via email. Even if one runs col(1)
and strings(1) on it, nobody can read it anyway.
* The mountain of gobbledygook makes people reading give up on trying to help.
E.g., http://article.gmane.org/gmane.emacs.w3m/8695

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.