[Webkit-unassigned] [Bug 93661] MutationObservers should not create circular, leaky references

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=93661





--- Comment #42 from Adam Barth <abarth at webkit.org>  2012-11-29 08:43:50 PST ---
We probably need to do the same two things we did for V8, right?

1) Integrate MutationObserver with GC opaque roots so that its wrapper has the right lifetime.
2) Store the callback object on the MutationObserver wrapper using a PrivateName.

It looks like part (1) is done in bug 102744 and WebCore can use PrivateName as of bug 102546.  That means we just need to move the storage of the callback to the wrapper.

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