Re^4: "eval" and "my" variable weirdness

Of course! You're right, except your version gives a warning. The following removes it:

{
   use warnings;
   my $thingy = 'thangy';
   sub doit { 0 && $thingy;  # Close over $thingy
              eval 'print "thingy is $thingy\n"'; }
}

doit();  # "thingy is thangy"
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Re^5: "eval" and "my" variable weirdness by diotalevi (Canon) on Jun 29, 2006 at 17:24 UTC
Your version is dangerously close to getting optimized away into nothingness. Just disable the warning. That's much safer. ⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊	[reply]
Re^6: "eval" and "my" variable weirdness by ikegami (Patriarch) on Jun 29, 2006 at 17:32 UTC
It is optimized away (according to Deparse), but not before satisfying our needs. The safe version would be: `{ use warnings; my $thingy = 'thangy'; sub doit { no warnings 'void'; $thingy; # Close over $thingy eval 'print "thingy is $thingy\n"'; } } doit(); # "thingy is thangy"` [download]	[reply] [d/l]