If you attempted to limit the effect of the change to that one function (and those it calls) using local *IO::Handle::DESTROY = sub { ... };, your code wouldn't be thread-safe.

In reply to Re^5: How do I make the garbage collector throw an exception when it fails to auto-close a filehandle? by ikegami
in thread How do I make the garbage collector throw an exception when it fails to auto-close a filehandle? by Aristotle

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