Kirk
Hmm.... I'm afraid this idea is far too sophisticated for a modest
enhancement to the existing debugger. I know of no language that provides
this sort of debugging capability (except perhaps Prolog?) and the
implementation would generate hundreds of thousands of new objects. In order
to step back one would need to keep the entire state at each step, or at
least have some sort of backtracking mechanism. It just doesn't seem a
feasible way of working to me.
However, it sounds like something a third party might want to add (remember
the entire debugger is implemented in Smalltalk) so maybe you can garner
some interest from others on the Dolphin newsgroup. Given the general
adequacy of the current debugger and the likely implementation effort I
think it unlikely to rise to a high priority on our list of future
enhancements.
Best Regards,
Andy Bower
Dolphin Support
http://www.object-arts.com---
Are you trying too hard?
http://www.object-arts.com/Relax.htm---
"Peter van Rooijen" <
[hidden email]> wrote in message
news:a0c8bm$9f6$
[hidden email]...
> "Kirk W. Fraser" <
[hidden email]> wrote in message
> news:eWBV7.1341$
[hidden email]...
> > One thing that would help immensely is an "infinite" undo-redo on the
> > debugger. Tracking down certian errors has become more complex than
> > reasonable for using the old system of laying "self halt" traps to catch
> the
> > cause of an error before it causes enough trouble to create walkback.
>
> Hi Kirk,
>
> Are you referring to an ability to step back (instead of forward) in the
> debugger? If so, that is theoretically possible, but generally not in
> practice. I say 'generally', because I'm pretty sure there is a way to do
it
> usefully under certain controlled circumstances, but I'll let you know
about
> this when I'm sure :-).
>
> Regards,
>
> Peter van Rooijen
>
>
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