Update: following solution assumes the poster wants the lexicals to apply to some code being eval'd ("WITHOUT having to define them before executing eval" implying that there is such an eval); a different reading of the question is that the lexicals should apply to the code following the eval, which isn't directly possible.

Just append them to the code to eval? 

my @lexicals = map "my \$$_", qw/foo bar baz/;
my $code = '$foo = 42; $bar = 13; sub { $baz += ++$bar + ++$foo };';
my $result = eval join(";", @lexicals, $code);

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But I think you are telling us how you think your actual problem should be solved; what is your actual problem? There's likely to be a better way.

In reply to Re: Usage of 'my' in 'eval' by ysth
in thread Usage of 'my' in 'eval' by Anonymous Monk

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