[ruby-core:33716] Re: Towards a standardized AST for Ruby code

On Tue, Dec 14, 2010 at 3:58 AM, Charles Oliver Nutter
<[e-mail]>wrote:

> On Sun, Dec 12, 2010 at 6:34 PM, Rocky Bernstein <[e-mail]>
> wrote:
> > On  the other hand, I do believe that in the rubinius implementation it
> is
> > possible to have one interpreter/system which suits both competing needs
> of
> > performance and live introspection. I believe this because in a sense
> > rubinius *is* already two implementations: a Ruby interpreter plus a JIT
> for
> > it.
>
> JRuby has also been a mixed-mode implementation since early 2008.
> Depending on what information you want available for debugging, it's
> possible to provide it in interpreted mode; but as we discussed at
> RubyKaigi, all optimizing compilers will eventually want to throw away
> information about code that isn't necessary for execution, and then
> you have to do debugging only with the interpreter (or with a compiler
> that doesn't do those optimizations, which may be fine). I don't think
> you currently want/need anything we throw away, but we need to be
> mindful of that possibility.
>
> - Charlie
>

Thanks for the information. Yes I suspect it does, but I need to check and
get back to you. it's on my list of things to do.

And thanks for your mindfulness.