[Jprogramming] Re: What is "trap."?

[Oleg Kobchenko]

Isn't that how the debugger works: once set it
pop-up on error anywhere. And you can similarly
set up your own trap.


--- Devon McCormick <devonmcc at gmail.com> wrote:

> I.P. Sharp-style error trapping would be a nice feature.
> "Try" and "Catch" work well but you have to anticipate
> where you expect to get an error.  The old quad-trap mechanism
> could provide a nice backstop for unanticipated errors.
> 
> On 3/12/07, Dan Bron <jf at dbron.net> wrote:
> >
> > Don Guinn wrote:
> > >Just noticed a new control in vocab.ijs called "trap.". It's not in the
> > >dictionary. What is it?
> >
> >
> > It's also not in the implementation:
> >
> >            3 : 'trap.'
> >         |spelling error
> >         |   trap.
> >         |   ^
> >         |       3 :'trap.'
> >
> >
> > so if it's not a typo in vocab.ijs, then it must be planned for a future
> > intepreter.
> >
> > -Dan
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
> 
> 
> 
> -- 
> Devon McCormick, CFA
> ^me^ at acm.
> org is my
> preferred e-mail
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
> 



 
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