[Openmcl-devel] tail calls in 1.3 IDE?
gz at clozure.com
Fri Aug 14 15:46:14 UTC 2009
At 8/14/2009 11:08 AM, Arthur W Cater wrote:
> > Someone checked in some code in some EasyGUI source file at some point
> > that does something like:
> > (declaim (optimize (safety 3) (debug 3) ...))
> > They presumably intended to wrap that in an (EVAL-WHEN (:COMPILE-
> > TOPLEVEL) ...
>I'm that somebody, and again I apologise.
>However, I suspect that wrapping in eval-when as suggested will
>still affect files subsequently
>compiled in the same session, at least. Maybe my mental model is
>wrong, but ... I think
>eval-when controls the time of evaluation but not the scope of any
>So, if a file with that declaration is compiled, the optimizations
>are set at compile time, and
>persist afterward. Which if true would mean that unfortunately you
>always have to explicitly reset the optimization settings to their
>defaults unless you intend these knock-on effects.
You'd probably need to do that for universally portable code, but in
CCL at least, an eval-when is sufficient to contain the effects to
the file being compiled.
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