I think you misunderstood what those modules do.

What they do is run a closure if a scope is exited with exceptions or control flow. They don't try to execute it under any conditions (and they wouldn't be very successful in case of a SIGKILL or a power failure).

Perl 6 - second systems done right

In reply to Re: Guard, Scope::Guard and End defunct in perl 5.12? by moritz
in thread Guard, Scope::Guard and End defunct in perl 5.12? by mzedeler

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