Re: about the next version
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- Subject: Re: about the next version
- From: Edgar Toernig <froese@...>
- Date: 2001年12月19日 17:10:03 +0100
Roberto Ierusalimschy wrote:
>
> > > metatable(A, {index=B})
> >
> > Hmm... If you do this, then _please_ honour the function (call) tag
> > method of B and only do this redirection if it's not set!
> >
> > "Calling" tables allows much more things then this simple redirection.
>
> But this simple redirection is *much* faster than a regular tag method.
Sure. That's why I said you should only _honour_ the function tag method.
If there's no function method on B you may do this "simple inheritance".
You want a uniform behaviour: when someone calls an object and it's not a
function then its call tag method is executed instead. Clean and simple.
Don't start to make exceptions a la: we ignore the call tag method on
objects stored in some special tag methods...
Ciao, ET.