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Re: How to debug modification to a variable value?
From: |
Stefan Monnier |
Subject: |
Re: How to debug modification to a variable value? |
Date: |
Tue, 26 Jan 2010 16:02:05 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.91 (gnu/linux) |
> It wouldn't be terribly hard to add one, I think.
> It would be very bad to use this hook for anything bug debugging,
> since it means that setting a variable could do anything whatsoever.
> So if such a featur one is added, it will be very important to make
> sure it isn't used except for debugging.
> One way is to design the feature so it always calls the debugger
> when activated. For instance, if a certain flag is set in a symbol,
> then setting its value or function slot calls the debugger.
I was thinking of a variant of read-only, so `setq' (and `let') would
signal an error (and hence throw you in the debugger).
Stefan
Re: How to debug modification to a variable value?, Davis Herring, 2010/01/25
Re: How to debug modification to a variable value?, alin.s, 2010/01/26