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On May 18, 2009, at 6:46 PM, steve donovan wrote:

Metatables for individual functions would allow method chains
operating on functions. So the question is, what are the performance
implications of such a feature?

Perhaps I'm totally missing the point, but... what's the difference between a function with a metatable and a table with a call metamethod?

"An important insight is that in Lua there is very little difference between a function and a table with a __call metamethod."

-- Rici Lake, Func Tables