Hey, I like that... Could I hide the whole thing too?
Maybe write:

sub GetData
{
    my %data;
    sub Recursive
    {
        # do stuff
        # push onto %data
        # call Recursive if appropriate
    }    
    Recursive();
    return \%data;
}
my %data = %{GetData()}; # Can this be cleaner?
[download]

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