I'm a bit torn between the const-member-and-MOZ_KnownLive approach
here and just taking extra stack refs...
Differential Revision: https://phabricator.services.mozilla.com/D23778
--HG--
extra : moz-landing-system : lando
This patch introduces a fake IDL interface just to get the benefits of
cycle collection for the JS-to-C++ link we now need for PromiseNativeHandler
(because the SpiderMonkey Promise somehow needs to point to the
PromiseNativeHandler). Now in practice a bunch of our PromiseNativeHandlers
are not cycle collected. That kinda freaks me out, but spot-checking a few
suggests they do not in fact leak (either because they don't form cycles or
because the Promise they're observing always settles and then releases them).
Either way, that's a problem that exists with or without this patch...
Boris Zbarsky
Sylvestre Ledru
Ben Kelly
Andrea Marchesini
Michael Layzell
Andrew McCreight
Benoit Jacob
Gene Lian
Nikhil Marathe