Re: C++ binding: arg errors

[Nick Gammon <nick@...>]

On 06/10/2006, at 9:29 AM, Rici Lake wrote:

> And for a good reason. If you remove the 'self' argument from the  
> stack, and there is no other reference to it, then it could get  
> garbage collected while your method is running, with possibly  
> disastrous consequences.

I'm trying to think how this would actually be a problem.

I have taken the information from the self parameter and stored it  
(in my case a userdata field) and then removed it from the stack, so  
I don't want it any more. The called function doesn't want it, as it  
never gets it in the first place.

I suppose it could happen, if you called the function with a method  
that was anonymously created on-the-fly, but it seems a strange way  
to code to me.

In my case the item in question is a userdata that represents a  
(pointer to) an object that already exists, and will continue to  
exist even if the userdata is garbage-collected, but I suppose it  
depends on your application a bit.

- Nick