[r6rs-discuss] [Formal] SRFI-39 should be made an R6RS library

[John Cowan]

Michael Sperber scripsit:

> Nice try!  However, parameters are neither simple nor general.
> Moreover, the particular design you chose is problematic because it
> destroys modularity.  In contrast, dynamic binding as a separate
> mechanism is simple and modular.  Combined with thread-local storage
> (less simple and not modular, but still simpler than parameters), you
> can build parameters.

Nice try.  But thread-local storage requires threads, which are out of
scope for R6RS.

Can you give an example of the kind of dynamic binding you mean?

-- 
When I'm stuck in something boring              John Cowan
where reading would be impossible or            (who loves Asimov too)
rude, I often set up math problems for          cowan at ccil.org
myself and solve them as a way to pass          http://www.ccil.org/~cowan
the time.      --John Jenkins