> See also Lua's upvalues for a way to optimize closure variable access Yes! In ... | Hacker News

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		munificent on Jan 16, 2017 \| parent \| context \| favorite \| on: Show HN: Crafting Interpreters – A handbook for ma... > See also Lua's upvalues for a way to optimize closure variable access Yes! In fact, that's how the C version of the interpreter in my book implements closures. It's pretty brilliant. <3 those Lua folks.

Flow on Jan 16, 2017 [–]

Will you cover anything about LuaJIT's "NaN-coding"?

Or perhaps do you have a link about how it works?

munificent on Jan 16, 2017 | [–]

Yes, we'll do NaN-tagged values in the last chapter on optimization.

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