[Webkit-unassigned] [Bug 97504] Don't use StyleSheetList internally

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=97504





--- Comment #4 from Antti Koivisto <koivisto at iki.fi>  2012-09-24 20:50:39 PST ---
(In reply to comment #2)

> So now we wouldn't create StyleSheetList until it's used by scripts? I think that should be explained in the change log.
> Doesn't this imply that if the author did
> document.styleSheets.foo = 'bar';
> gc(); // Force GC here.
> alert(document.styleSheets.foo); // would give us "undefined"?

No since document refs the StyleSheetList and always returns the same instance after initial  construction. There shouldn't be any externally observable changes.

> Why do we not want to swap?

Good point, I forgot Vector has swap() too.

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