Re^5: References for ano subs fixed at compile time? (opnode)

[tye]

Well, that part is the stupider part. If address X is no longer used, it is obvious that address X might be re-used. If address X gets re-used, it is obvious that it might still be being used and so can't be re-used a third time.

But, indeed, even completely identical code refs get recreated each time in my version of Perl (so I lose my bet). Which probably means that a closure is generated even if nothing got closed over.

But each closure contains a pointer to the code that got compiled for that (trivial) sub. Perhaps that is what you want?

[LanX]

> Perhaps that is what you want?

I thought I could use the code-ref as reliable identifier for the call position ( not just the line-number caller provides ).

Something which can be used to emulate position dependent built-ins like the flip-flop operator.

I tried B::svref_2object but the docs to B are somehow cryptic...