Bug 187907

Summary:	[Meta] Ensure element queues are properly pushed/popped from custom element reactions stack
Product:	WebKit	Reporter:	Frédéric Wang (:fredw) <fred.wang>
Component:	DOM	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	cdumez, rniwa, rwlbuis
Priority:	P2
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=187319

Description Frédéric Wang (:fredw) 2018-07-23 08:50:20 PDT

These are the places where such operations are mentioned in the spec:

1) create an element for a token
   https://html.spec.whatwg.org/#create-an-element-for-the-token
   This is at least making one test fail in custom-elements/parser/parser-sets-attributes-and-children.html and causing the ASSERT in bug 187802.

2) insert a foreign element
   https://html.spec.whatwg.org/#insert-a-foreign-element
   This is at least making another test fail custom-elements/parser/parser-sets-attributes-and-children.html.

3) Operations, attributes, setters, or deleters annotated with the [CEReactions] extended attribute
   https://html.spec.whatwg.org/#custom-element-reactions:custom-element-reactions-stack-5
   Hopefully, we already do all the necessary calls, but bug 187851 will make sure we don't miss anything.

Comment 1 Ryosuke Niwa 2018-07-31 19:34:42 PDT

We need to be very careful with respect to how this work affects perf.

Comment 2 Ryosuke Niwa 2018-08-01 17:54:12 PDT

We don't really need a meta bug like this separate from the bug 154907.

*** This bug has been marked as a duplicate of bug 154907 ***