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Here is your solution, with superficial code omitted. There is a closure over the initial value of $var (which can also be set with eval, barring errors). The print statements demonstrate that regardless on how you call the sub, it always acts on its initial closured value.
my $profile; { my $var = eval '33'; # or just my $var = 33 # or my $var = setme_at_runtime(); $profile = { my_name => sub { ($var =~ /\d+/) ? 1: return } }; } my $fun = $profile->{my_name}; print $profile->{my_name}->( ); print $profile->{my_name}->('a'); print $profile->{my_name}->( 22 );

In reply to Re: Dynamically Creating a Code reference by ioannis
in thread Dynamically Creating a Code reference by Herkum

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