Refactor class structure: redefine Animal and Dog classes for improved inheritance and method definitions

main.lua

@@ -1,16 +1,19 @@
 oop = require("oop/oop")
 
-local function MyClass(cls)
-    cls.setattr(cls, "name")
-
-    function cls.__init(this, name)
-        this.name = name
-    end
-
-    function cls.test(this, name)
-        print("hi " .. this.name .. " from " .. name)
+function Animal(cls)
+    function cls.speak(this)
+        print("animal")
     end
 end
 
-local obj = oop.new(MyClass, "Carl")
-obj.test("tom") -- Output: hi Carl from tom
+function Dog(cls)
+    cls.inherit(Animal)
+
+    function cls.speak(this)
+        cls.super.speak(this)
+        print("woof")
+    end
+end
+
+local d = new(Dog)
+d.speak() -- animal, then woof