What you expect Perl to do when you print a memory reference? 

>perl -e"print {}"
HASH(0x225228)

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That you're hiding the print inside of Tie::File::AsHash doesn't change anything.

In reply to Re^3: FATAL ERROR: Can't use string ("HASH(0x875fffc)") as a HASH ref while "strict refs" in use at by ikegami
in thread FATAL ERROR: Can't use string ("HASH(0x875fffc)") as a HASH ref while "strict refs" in use at by earlati2

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