Re: C++ binding: arg errors
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- Subject: Re: C++ binding: arg errors
- From: Nick Gammon <nick@...>
- Date: Sat, 7 Oct 2006 17:16:54 +1000
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