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From: Andy Wingo <wingo@pobox.com>
To: Mike Gran <spk121@yahoo.com>
Cc: Guile User <guile-user@gnu.org>
Subject: Re: Backtraces in Guile 2.0
Date: Tue, 22 Feb 2011 20:13:48 +0100	[thread overview]
Message-ID: <m3r5azx4pf.fsf@unquote.localdomain> (raw)
In-Reply-To: <773019.4427.qm@web37908.mail.mud.yahoo.com> (Mike Gran's message of "Tue, 22 Feb 2011 09:53:56 -0800 (PST)")

On Tue 22 Feb 2011 18:53, Mike Gran <spk121@yahoo.com> writes:

> So, the specific line on which the error occurred will always read
> "in unknown file" because source data is a property of procedures.  And,
> when procedure A tail-calls procedure B, the backtrace may only
> display the information of the procedure A.  Right?

Right.

> Thus, if I understand correctly, the closest I can get to getting source
> info for this trivial case would be to change the script to
>
>   (symbol->string "HELLO")
>   #t

Yep.

> Adding a #t so it can't be tail-called.  Then I get
>
> In unknown file:
>    ?: 2 [load-compiled/vm "/home/Mike/.cache/guile/ccache/2.0-LE-4-2.0/home/Mike/tmp.scm.go"]
> In /home/Mike/tmp.scm:
>    1: 1 [#<procedure 13fa550 ()>]
> In unknown file:
>    ?: 0 [symbol->string "STRING"]
> ERROR: In procedure symbol->string:

Is this what you want?  It seems right to me...

Andy
-- 
http://wingolog.org/



  reply	other threads:[~2011-02-22 19:13 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-22 17:53 Backtraces in Guile 2.0 Mike Gran
2011-02-22 19:13 ` Andy Wingo [this message]
2011-02-22 19:44   ` Linas Vepstas
  -- strict thread matches above, loose matches on Subject: below --
2011-02-22 19:55 Mike Gran
2011-02-22  3:23 Mike Gran
2011-02-22  7:44 ` Klaus Schilling
2011-02-22  8:20 ` Andy Wingo

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