lua modules and OO

[Wesley Smith <wesley.hoke@...>]

After reading module v. dofile discussion I was curious how people
handle OO constructs as Lua modules.  I like having the module itself
act as the "class" or "prototype" and use it as a constructor for an
instance of that module or class.  For example, to support the syntax:


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local myobject = require("myobject")
local obj = myobject()
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I use the following technique in the module script

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local C = {}
local M

local
function setconstructor(m)
	M = m
	setmetatable(M, C)
end

module('myobject', setconstructor)

function C:__call(init)
    local m = setmetatable({}, M)
    -- init object
    return m
end

function M:method()
  -- some method
end

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