Re: Creating dynamic variables

[tobyink]

This is about the closest I could get...

use strict;
use warnings;

BEGIN {
    package JIT;  # Just In Time evaluation
    $INC{'JIT.pm'} = __FILE__;
    
    use base 'Exporter';
    our @EXPORT = 'jit';
    sub jit (&) { bless $_[0] }
    
    use overload
        q[""]    => 'evaluate',
        q[0+]    => 'evaluate',
        q[bool]  => 'evaluate',
        fallback => 1;
    sub evaluate { $_[0]->() }    
};

use JIT;

my $foo = "hello";
my $y;  # needs to be declared, but we haven't assigned a value to it 
+yet.
my $x = jit { "$foo".$y }; # $y is not yet defined.
$y = "world";              # now define $y
print $x;