Re: Depth indexing of nil
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- Subject: Re: Depth indexing of nil
- From: "Soni L." <fakedme@...>
- Date: Thu, 9 Jul 2015 00:57:04 -0300
On 08/07/15 11:12 PM, Luiz Henrique de Figueiredo wrote:
Use
debug.setmetatable(nil, {__index = {}})
See http://lua-users.org/lists/lua-l/2010-05/msg00159.html
I should make a library for this that doesn't require debug.
Maybe something like "local f = mkgetter("a", "b", "c", ...)" or "local
f = mkgetter().a.b.c()" and then "if f(obj) then", maybe even return the
depth as a second return so like local value, depth = f(obj), depth
could be negative if the second arg was true as in f(obj, true).
It obviously won't use pcall as that's slow. Might use tail calls
because I love tail calls. :P
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