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  1. obj_class =
  2. {
  3. 	__index = function(obj, func)
  4. 		return function(...)
  5. 			return getmetatable(obj)[func](obj, ...)
  6. 		end
  7. 	end,
  8.  
  9. 	add = function(obj, x, y)
  10. 		obj.x = obj.x + x
  11. 		obj.y = obj.y + y
  12. 	end
  13. }
  14.  
  15. local obj = setmetatable({ x = 1, y = 2 }, obj_class)
  16. obj.add(200, 400) -- yay!
  17. print(("x = %.9g, y = %.9g"):format(obj.x, obj.y))
Success #stdin #stdout 0s 15008KB
comments (?)
stdin 
Standard input is empty
stdout 
x = 201, y = 402
https://ideone.com/77JxX7
language:
Lua (luac 5.3.3)
created:
8 years ago
visibility:
secret

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