---@class Stack
---@field elements table[]
local Stack = {}
Stack.__index = Stack


---@return Stack
function Stack:Create()
  -- stack table
  local t = {}
  setmetatable(t, Stack)

  -- entry table
  t.elements = {}

  return t
end


---@param element table
function Stack:Push(element)
    if element == nil or element == {} then
        return
    end

    table.insert(self.elements, element)
end


---@return table
function Stack:Pop()
    return table.remove(self.elements)
end


---@return table
function Stack:Peek()
    return table[#self.elements]
end


---@return number
function Stack:Count()
    return #self.elements
end


return Stack