~/oop-test4.lua

local object, id = require("object")

local Plan = {}
function Plan:__construct(lua)
  self.lua = lua
  print(("[%s:Plan:construct()]: lua is: %s"):format(id(self), self.lua))
end
function Plan:__tostring()
  return ("[%s:Plan:__tostring()]"):format(id(self))
end

function Plan:method()
  return ("[%s:Plan:method()]: lua is %s"):format(id(self), self.lua)
end

print(("id(Plan): %s"):format(id(Plan)))
print()

local plan1 = object(Plan, "fucking weird.")
plan1.lua = 'weird'
print(([[plan1:
  id(plan1):        %s
  tostring(plan1): %s
  plan1:method():  %s
]]):format(id(plan1), tostring(plan1), plan1:method()))

local plan2 = object(Plan)
plan2.lua = 'weirder'
print(([[plan2:
  id(plan2):        %s
  tostring(plan2): %s
  plan2:method():  %s
]]):format(id(plan2), tostring(plan2), plan2:method()))