On Fri, Aug 19, 2005 at 01:17:51AM +0800, Autrijus Tang wrote: : Also, preemptively -- I think the corresponding "delete $a" is insane, : as it would just lift up the constancy problem one level, defeating the : no rebinding restriction.
I think in general the only time you're allowed to monkey with the symbol table is when you're compiling, so deletions could just fall into that category. The compiler has to be able to depend on its symbols not going away once it's done. Larry