Here's a list of what any Perl 6 implementation of lexicals must be able to
cope with (barring additions from future apocalyses). Can anyone think of
anything else?
>From Perl 5:
* multiple instances of the same variable name within different scopes
of the same sub
* The notion of introduction - a variable that has been defined but does
not yet mask an outer var, eg my $x = 1; { my $x = $x+1; ... }
* an inner sub referring to a lexical in a lexically enclosing outer sub
- ie closures.
* eval - ie delayed compilation of an inner sub with restored scope
* typed lexicals
* our
New in Perl 6:
* %MY:: dynmaically changing the values and visibility of lexicals
* lexically scoped named subs - so caller(){MY::}{'&die'} = &mydie does
something useful.
