You may also check out the following project:

http://www.squeaksource.com/ProcessLocalStorage/

<http://www.squeaksource.com/ProcessLocalStorage/>cited from the website:
"This project provides process-specific variables (called TLS - thread-local storage) in other environments. Two kinds of variables are provided: ProcessLocalVariable (similar to TLS), and DynamicVariables (akin LISP's dynamic scope)"

Regards,
Bastian

On Jan 21, 2011, at 7:08 PM, Colin Putney wrote:

On Fri, Jan 21, 2011 at 6:42 AM, Frank Shearar
<frank.shearar at angband.za.org<mailto:frank.shearar at angband.za.org>> wrote:
Is there an analogue to Common Lisp's dynamic variables in Squeak?

It looks like Goran Krampe's DynamicBindings
(http://map.squeak.org/package/9f2cdda3-c666-459c-ba5e-55a91b428f40) MIGHT
be what I'm looking for, but there's also Samir Saidani's DynamicBindings
(http://www.squeaksource.com/DynamicBindings.html, moved to
http://www.squeaksource.com/KomHttpServer.html). Are these two packages
related?

(I'm trying to figure out the restart capabilities of Common Lisp's
conditions, and thought a good way to do that would be by adding same to
Squeak. It looks like one of the requirements is something like dynamic
variables, to allow the lookup of a suitable restart.)

Thanks in advance for any help/advice/etc!

Hi Frank,

DynamicBindings was actually written by Stephen Pair as part of the
Comanche web server, though Göran and Samir have been maintaining it
in recent years. You probably want to use the version on SqueakSource
since SqueakMap isn't maintained much anymore. As Tobias notes, you
could also use resumable exceptions to for your purposes.

HTH,

Colin