Re: questions about closure construction

[Finn Wilcox <finnw@...>]

On 19/03/2013 07:47, steve donovan wrote:
> 
> I believe Lua 5.2 has made some progress in re-using closures that
> have no upvalues.  LuaJIT may well optimize it to nothing ;)
> 
No it cannot, because of getfenv and setfenv.

http://lua-users.org/lists/lua-l/2010-05/msg00617.html