On Wed, Nov 07, 2001 at 07:12:40AM -0600, Dave Goehrig wrote: > I brought up the whole low level integer rewrite stuff above, because > look at it again. That is eactly what we are meant to do when we know > it is safe to optimize a variable to a more limited domain than say > 'scalar'. We don't even go through the motions of vtables.
I've been thinking of the same things. It's no use writing a good optimizer for a register machine if every variable you have could be magically tied and execute a redefinetheworld on read. So I'd hope there will be a way to say (at the Perl6 language level) that this variable $foo is really a plain int. It's also important to know that there are no unforeseen aliases for a variable (like $bar = \$foo), but I don't know how one could specify that, if at all. -- Bart.
