52emu.lua

track={}
setmetatable(track,{__mode="k"})
function setmetatable52(t,v)
	if v.__gc then
		track[t] = newproxy(true)
		getmetatable(track[t]).__gc = function(dummy)
			v.__gc(t)
		end
	end
	setmetatable(t,v)
end

t={}
print(t)
m={__gc=function(tt)
	print('got call, now resurrecting',tt)
	t=tt
	setmetatable52(tt,m)
end}
setmetatable52(t,m)
t=nil
for i=1,10 do collectgarbage("collect") end
t=nil
for i=1,10 do collectgarbage("collect") end