So basically, you want to add a finalizer for JS component?

Note that we already have a weak (post-mortem) finalization module for
JS, hidden somewhere in mozilla-central. It's not meant to be used for
performance critical code, and it provides no guarantees about cycles,
but if this is necessary, I could rework it in something a bit
faster/more robust.

Cheers,
 David

On 3/20/14 1:25 AM, smaug wrote:
> And we could add a flag to WrappedJS so that it would call some callback
> when it is about
> to go away. That would let cleanup of WeakPromise happen asap.
> Basically keep a hashtable wrappedjs ->
> objects_implementing_callback_interface_foo.
> Then when adding an object to the hashtable, wrappedjs would get marked
> with a flag, that
> it should look at the hashtable when it is going away, and if there is
> value in the hashtable,
> call the foo.
> 
> This cleanup mechanism could be used with weak observers and weak
> listeners too.
> 
> 
> -Olli
> _______________________________________________
> dev-platform mailing list
> dev-platform@lists.mozilla.org
> https://lists.mozilla.org/listinfo/dev-platform


-- 
David Rajchenbach-Teller, PhD
 Performance Team, Mozilla
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