Yet Another CPAN Grep

Data-Circular-Util ( P/PE/PERLANCAR/Data-Circular-Util-0.59.tar.gz, PERLANCAR, 2015; MetaCPAN )

Data-Circular-Util/lib/Data/Circular/Util.pm ( view source; MetaCPAN )

at is, the subsequent circular references will be deep-copied. This makes it
safe to transport to JSON, for example.

Sometimes it doesn't work, for example:

    $data = [1];
    push @$data, $data;

at is, the subsequent circular references will be deep-copied. This makes it
safe to transport to JSON, for example.

Sometimes it doesn't work, for example:

 $data = [1];
 push @$data, $data;

Cloni