OOP Lua

print("OOP Lua!")

-------------------------------------------------------
local mt = {}
-- setter
function mt.__newindex( self, index, value )
    if index == 'name' and type(value) == 'string' then
       self.setName(value)
    else
        rawset( self, index, value )
    end
end

-------------------------------------------------------
--getter
function mt.__index( self, index )
    if index == 'name' then
        return self.getName()
    else
        return rawget( self, index )
    end
end
-------------------------------------------------------
local User = {}
function User.new()
    local _name = 'Qugurun'
    local object = {
        setName = function(n)
            _name = n
        end,

        getName = function()
            return _name
        end
    }
    return setmetatable(object, mt)
end
--=====================================================

local user1 = User.new()
local user2 = User.new()

user1.name = "Laimadoo"
print(user1.name) --> Laimadoo
print(user2.name) --> Qugurun
print(user2._name) --> nil

for k,v in pairs(user1) do
    print(k,v) --> getName  function: ...
               --> setName  function: ...
end