Re: Lua 5.2 new function reference inside a loop

[Choonster TheMage <choonster.2010@...>]

On 16 September 2014 18:25, Paul Bernier <bernier.pja@gmail.com> wrote:

I tried this snippet Dirk, but unfortunately it has the same pitfall.

Try this, it seems to work for me.

local proxy = {}

local mt = {

    __index = function(self, key)

        return proxy[self][key]

    end,

    __newindex = function(self, key, value)

        if not proxy[self] then

            proxy[self] = {}

        end

        proxy[self][key] = value

    end,

}

debug.setmetatable(function()end, mt)

local funcs = {}

for i=0,5 do

    local f = function() local _ = i end -- The dummy assignment should give each closure a unique upvalue i (suggested by LHF earlier in the thread)

    f.att = i

    table.insert(funcs, f)

end

print(funcs[1].att) -- I'd expect 0

print(funcs[2].att) -- I'd expect 1