I'm looking for ways to avoid the fact that an anonymous code ref usually references itself (and therefore never goes out of scope). Leonard of #perl-freenode complained that a sub like this will never say goodbye: 

my $x = sub { "test" };  bless $x, "HRM";
sub HRM::DESTROY { print "bye\n" }

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I used Devel::FindRef to discover the obvious: the sub keeps a reference to $x for closure reasons, which makes sense. If you construct the ref like this: 

my $y = eval 'sub {"test"}'; bless $y, "HRM";

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... It will say goodbye just fine. Are there other, hopefully non-eval, ways to keep the sub from referencing itself? (It's not a bug is it? I mean, you clearly want the subs to keep references to all the lexicals they see... just not ... that one, sometimes.)

-Paul

In reply to coderefs keep references to themselves by jettero

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