FWIW, in Perl 6, keys to so-called "object hashes" can be objects without them being stringified. See https://docs.perl6.org/language/hashmap#index-entry-objec

FWIW, in Perl 6, keys to so-called "object hashes" can be objects without them being stringified. See https://docs.perl6.org/language/hashmap#index-entry-object_hash https://docs.perl6.org/language/hashmap#index-entry-object_h...