Re: [Gcl-devel] RE: [Maxima] Re: Maxima cmucl patch

[Camm Maguire]

Greetings!

"Stavros Macrakis" <address@hidden> writes:

> If you don't have a system definition within the Lisp system (or at
> least accessible to it), how do you support interpretive execution?  In
> the Maxima context, how would you go about integrating
> dynamically-defined Maxima programs into the build system?  Are there
> good debuggers available for non-interpretive execution?
> 
> Of course in principle you could make all this work in a compiled
> environment, but....
> 

That's interesting, if I understand you correctly.  Is there any
available real-world system making use of 'dynamically-defined'
programs and routines?  If your system generates a function at runtime
and decides to compile it, why does it need to know where it is on a
dependency tree?

While your at it, though this is somewhat off topic -- could you
please explain to me to what lisp development experts are referring
when they tout the ability to modify a running program?  The closest
procedure I can imagine fitting this description would be to fire up
gdb, attach to a running daemon, break at a point, 'p var =
new_value', 'detach'.  Of course the program is not 'running' when
stopped.  Operations on sql databases have a similar quality.  But as
far as I know, barring more recent developments such as multithreaded
extensions, lisp has a single flow of control.  Perhaps is meant
executing a saved image, modifying, saving the image, and copying that
to the location used in future invocations?

Take care, 


>       -s
> 
> PS Even if Maclisp and other earlier systems did not have
> fully-integrated editors (Emacs front ends ran in a separate workspace),
> you did "live in" the Lisp system in the sense of loading new versions
> dynamically and incrementally rather than rebuilding the system.
> 
> 
> 
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> 

-- 
Camm Maguire                                            address@hidden
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