Re: upvalues actually are values?

[Luiz Henrique de Figueiredo <lhf@...>]

> Lua's are "up-vars" too. This is a fact that's noted in a couple
> places (I think there's some discussion in PiL) -- "upvalue" is an
> unfortunately inaccurate name kept around for historical reasons.

Right. We have also used the term "external local variable" in other places,
such as the HOPL paper. PiL uses it too:
	http://www.lua.org/pil/6.1.html
and so does the manual:
	http://www.lua.org/manual/5.1/manual.html#2.6
	http://www.lua.org/manual/5.2/manual.html#3.5