doubt about gc

["Milano Carvalho" <milanogc@...>]

I would like to know if when I execute the code shown below, the garbage
collector can "clean" the lost data.

x = {}
x[{}] = 1 -- lost data

I ask this because I am using this type of indexation to put into Private
table private attributes concerning an object, and when this object is
destructed I want that your private data also be destructed.

See an example (Public:new() is the function where is my doubt):

BEGIN

-- avoid redefine the package
if Account then
  return
end

-- load dependencies
dofile("base.lua")

local Public = settag({}, newtag())
local Private = {}
Account = Public

settagmethod(tag(Public), "index", function(t, i)
  -- return the Public field or try inherit from Base class
  -- Lua 4: use rawget instead rawgettable
  return rawgettable(%Public, i) or rawgettable(Base, i) -- or [to multiple
-- inherance]
end)

function Public:new()
  local t = {}
  settag(t, tag(%Public))

  -- initialize private data
  %Private[t] = {}
  %Private[t].balance = 0

  return t
end

function Public:deposit(v)
  %Private.setBalance(self, %Private[self].balance + v)
end

function Public:withdraw(v)
  %Private.setBalance(self, %Private[self].balance - v)
end

function Public:getBalance(v)
  return %Private[self].balance
end

function Private:setBalance(v)
  %Private[self].balance = v
end

--tests
local x = Account:new()
x:print(x:getBalance())
x:print(x.balance)
x:deposit(100)
local y = Account:new()
y:withdraw(10)
y:deposit(13)
y:print(y:getBalance())
y:print(x:getBalance())

END

The Base class is defined by the same way.
I'm using LuaOrb 2.0 that is Lua 3.2 based.

Regards,
Milano