Re: Modules as classes?

[PA <petite.abeille@...>]

On Aug 30, 2007, at 11:25, Michal Kolodziejczyk wrote:

> I woul like to write some classes (to get some OO and inheritance),
> which could also be modules (to get autoload and 'dotted' names
> notation). What is the way to accomplish it?

Tomas demonstrated something a while back which elegantly leverage 
Lua's built-in module system:

http://lua-users.org/lists/lua-l/2006-03/msg00336.html

Something along these lines:

local function extends( aSuper )
    return function( aClass )
        setmetatable( aClass, aSuper )
        aClass.__index = aClass

        aClass.self = aClass
        aClass.super = aSuper

        return aClass
    end
end

local class = module

class( 'Object', extends(), package.seeall )

class( 'MyObject', extends( Object ) )