Inheritance

This wiki page covers class inheritance. We can start by creating our base class:

local lobject = require "lobject"
local Being   = Class "Being" (function (argl)
  local object = {}
  object.age = argl.age or 0
  return object
end)

We start by thinking that all living beings have an age, which if it is not provided, it must be 0. Now we will create a Human class that will inherit from Being, we will do it like this:

local Human = Class ("Human", Being) (function (argl)
  -- I haven't been able to implement multiple inheritance in the arguments
  -- Help is appreciated!
  local object = {}
  object.name = argl.name or "Unknown"
  return object
end)

There we go, now we have our Human class that inherits from Being. Now if we create the Human class we need to provide an age and a name, and we will be able to get those properties as well.

local daelvn = Human:new { name = "Dael", age = 14 }
print ( daelvn.name ) --> "Dael"
print ( daelvn.age  ) --> 14

We can also implement inheritance using the .include method in lobject. Let's declare our Human class without the direct inheritance:

local Human = Class "Human" (function (argl)
  -- I haven't been able to implement multiple inheritance in the arguments
  -- Help is appreciated!
  local object = {}
  name = argl.name or "Unknown"
  return object
end)

Now all we have to do is:

Human = lobject.include (Human, Being)

And that's all on inheritance!