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-- currently a class is a table T with T.__index = T
-- then to make an instance of this class, we do setmetatable(instance,T)
-- this should be fine for anything we wish to do. it is possible we will eventually
-- split this into two separate tables though, perhaps? i don't see why we would ever
-- do this though.
local function class()
local T = {}
T.__index = T
return T
end
local function extend(Base)
local T = {}
T.__index = T
for k,v in pairs(Base) do
if k:sub(1,2) == "__" and k~="__index" then
T[k]=v
end
end
setmetatable(T,{__index=Base})
return T
end
return setmetatable({
class=class,
extend=extend
},{__call=class})
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