Re: When does __index metamethod get called?
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- Subject: Re: When does __index metamethod get called?
- From: "D Burgess" <dburgess@...>
- Date: 2006年3月17日 13:49:28 +1100
One could argue that it is better than perfect because you
can define your own interface.
e.g.
> p = {1,2,3,4,5}
> t={};t=setmetatable(t, {__index=function(t,k) return p[k] end})
> t.next=function(t,v) return function(t,v) return next(p,v) end end
> for k,v in t:next() do print(k,v) end
1 1
2 2
3 3
4 4
5 5
On Chris wrote:
> It's still not a perfect solution though because a table with a
> proxy doesn't support the interface of a real table.