Hi Moritz

> Symbolic deferences only look in the symbol table, not in the lexical pad. A reason for that is that lexical variables can be removed from an outer pad when taking a closure, and allowing symbolic differentiation would defeat that optimization.

sorry I don't understand this argumentation, if you want to make a symderef on a lexical you can always use eval. The optimization shouldn't be bothered about this possibility. 

our $x=666; #develish

{
    my $x='et voila';
    my $y="x";
    print eval "\$$y"; # prints "et voila"
}

[download]
If ever it fails because of optimization, it's in the responsibility of the hacker, like eval is.

so why shouldn't there be a symderef for lexicals, that actually does an eval???

the reason why perl 5 can't do this out of the box, is IMHO most probably that lexicals were too new to consider all use-cases...

Cheers LanX

In reply to Re^4: Indirect variable name by LanX
in thread Indirect variable name by FreakyGreenLeaky

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