Bug 261016

Summary:	Add mutation events tests for ContainerNode::replaceChildren and refactor the code
Product:	WebKit	Reporter:	Ryosuke Niwa <rniwa>
Component:	DOM	Assignee:	Ryosuke Niwa <rniwa>
Status:	RESOLVED WONTFIX
Severity:	Normal	CC:	commit-queue, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	Safari Technology Preview
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:	261766
Bug Blocks:

Description Ryosuke Niwa 2023-08-31 22:47:28 PDT

ContainerNode::replaceChildren creates a dummy DocumentFragment during its course of child node replacement logic.
Avoid this unnecessary work.

Comment 1 Ryosuke Niwa 2023-08-31 22:53:25 PDT

Pull request: https://github.com/WebKit/WebKit/pull/17328

Comment 2 Radar WebKit Bug Importer 2023-09-01 00:14:17 PDT

<rdar://problem/114809376>

Comment 3 EWS 2023-09-01 16:13:17 PDT

Committed 267565@main (c177199a72c0): <https://commits.webkit.org/267565@main>

Reviewed commits have been landed. Closing PR #17328 and removing active labels.

Comment 4 WebKit Commit Bot 2023-09-19 12:54:18 PDT

Re-opened since this is blocked by bug 261766