Yup, excellent!

Two little additions:
|| 1 assures a true value when %$ref is an empty hash.
|| 1 avoids the "void context" warning ; 1 would issue.

One little correction:
On error, eval returns false (dualvar 0, ""), not undef.

In reply to Re^3: Blessing interior hashes by ikegami
in thread Blessing interior hashes by throop

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