Re: Next Version of Lua?

[Luiz Henrique de Figueiredo <lhf@...>]

> I'd vote for a '__iter' metamethod so you could provide a customised
> iterator factory for an object class. This would allow syntax:
>
> for k,v in obj do ... end

As you have noticed, you can use __call for that:

    t={10,20,name="hello",size=45}

    setmetatable(t,{
	    __call = function (x,y,z) return next(x,z) end
    })

    for k,v in t do print(k,v) end

No parentheses needed.