in reply to Accessing name of tied variable in tie constructor
But Tie::StdHash derived have an identity number (documented as argument named this) which you can use to differentiate between tied variables, see example. I guess that's your real intention.
Even PadWalker and Devel::Caller can't help you - TIEHASH doesn't get passed a reference to the tied variable, so there's no chance of it being able to figure out the variable's name.
Also, the argument this in the Tie::StdHash documentation isn't an identity number; it's a blessed hashref. (It's what most OO Perl code would refer to as $self.)
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