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On May 18, 2013, at 6:22 PM, Jay Carlson wrote:

> Compilation is a pure function from a stream to a Lua function. The same text always produces functions which have indistinguishable behavior.
> The "no macros" theorem can be derived from that.

Well, strictly speaking you could have a certain kind of file-scoped macros. But you can't import them, which severely limits their utility.