How about: 
    sub rref
    {
         return UNIVERSAL::isa(@_);
    }

    if (rref($hash_ref,'HASH'))
    {
         # Wow! It's a hash!
    }

[download]
UNIVERSAL is such a wacky thing. It's exactly the kind of direction that I would expect Parrot to take, but only if somehow Java were involved.

In reply to Re^2: passing hashes and hash reference by tadman
in thread passing hashes and hash reference by symŽ

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