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Documentation for Zeek
https://docs.zeek.org
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statements: Leave a note for index, value iteration of vectors #137

Closed awelzel closed 2 years ago

awelzel commented 2 years ago

I'm not 100% certain if the "core exposes value variables for free" also applies to the vectors or is more a table/HashKey thing. Happy to re-structure if the current version isn't quite right.

ckreibich commented 2 years ago

I think it holds and is fine to keep: for tables this likely refers to the fact that for a lookup the work is all in locating the key's corresponding DictEntry. Once located, the latter points directly at the value, which can then be passed on to the script layer. For vectors this is also true — the stored element gets converted from a ZVal, but that is either very cheap or just a pointer assignment.