A similar thing that you can do is just keep around the text of the code that went into the closure. Then you can create a new closure of it in any scope you'd like:
my $code = q{
# some generic sub
my ($param1,$param2) = @_;
do_stuff($param1);
do_more_stuff($param2);
return whatever_you_return_from($param1,$param2);
};
# ...
my $closure_to_this_scope = eval "sub {$code}";
# ...
my $closure_to_this_other_scope = eval "sub {$code}";
That's the beauty of perl:
eval gives you dynamic lexical scoping for free. Additionally, closures let you fix a dynamicaly lexically scoped entity to a static lexical scope, as you please! (That's exactly what I've done above.)
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:Wq
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