Re: set_weak_flag() for objects?

On Wed, 21 Sep 2016, Arne Goedeke wrote:

> Weak references are resolved (i.e. objects which only have weak
> references are destructed) only if 1) the gc runs or 2) when a mapping
> is rehashed. This means that in your example the object is only
> destructed when the gc runs. In your situation I would recommend doing
> something like this:
>
> class FOO {
> 	private mixed _id;
>
> 	mixed `id() {
> 		return _id || this;
> 	}
> }

NB: There's a special case in the reference counting for variables
in objects of classes written in pure Pike, where direct circular
references aren't counted (cf PIKE_T_NO_REF_*), so the above
construction isn't strictly needed (but still recommended).

 	/grubba

-- 
Henrik Grubbström					[email protected]
Roxen Internet Software AB