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-rw-r--r--example.lua32
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+local Object = require "Object"
+
+local Point = Object:extends() -- creating new class by extending basic class
+function Point:new (x, y) -- defining function called by constructor for newly created class
+ self.x = x -- instance created by constructor is `self`
+ self.y = y
+end -- no returns needed
+
+Point.NUMBER = 10 -- setting some global values for class
+
+function Point:__tostring () -- metamethod used with `tostring()`
+ return "Point<" .. self.x .. ", " .. self.y .. ">"
+end
+
+local a = Point(3, 2) -- create new instance by calling class
+print(tostring(a))
+
+assert(a:is(Point)) -- you can also check if object is instance of class
+assert(a:is(Object)) -- use `is()` method for it
+
+local Foo = Point:extends() -- you can extend whatever class you want
+function Foo:new (str, x, y)
+ self.__super.new(self, x, y) -- call super constructor first
+ self.str = str -- do whatever else is left to be done
+end
+
+function Foo:__tostring () -- metamethods are not inherited
+ return "Foo(" .. self.str .. ")<" .. self.x .. ", " .. self.y .. ">"
+end
+
+local b = Foo("lorem", 7, -1)
+print(tostring(b))