[R6RS] safe and unsafe; declarations

[dyb at cs.indiana.edu]

> > If exceptions like syntax or type errors can be rasied at compile time,
>
> This detail has whizzed by me a couple of times, and Will and you seem
> to regard it as self-evident, but I'm not sure I understand it.  What
> exactly does this mean in the context of what we're envisioning for
> R6RS?  Can I catch a compile-time exception?  (Outside of EVAL, that
> is.)

I don't know if the exception system will provide a mechanism for
compile-time (or expand-time, or load-time) exceptions, outside of eval
(and load), to be caught.  Even if it doesn't, that doesn't mean such
exceptions can't be raised.

Kent