Great - many thanks for the solution!

I just went looking for how Data::Dumper does this, and it seems the core solution is: 

use B::Deparse;
...
my $string = B::Deparse->new->coderef2text($coderef);

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In reply to Re^2: Converting a coderef back to code by oxone
in thread Converting a coderef back to code by oxone

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