Bug 258734

Summary:	REGRESSION(265569@main): All path segments should be coded by StreamConnectionEncoder
Product:	WebKit	Reporter:	Said Abou-Hallawa <sabouhallawa>
Component:	Layout and Rendering	Assignee:	Said Abou-Hallawa <sabouhallawa>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=255898 https://bugs.webkit.org/show_bug.cgi?id=258762

Description Said Abou-Hallawa 2023-06-30 08:30:23 PDT

After 265569@main, the composite path segments, such as PathDataLine, became decodable by IPC coders only. We need to add StreamConnectionEncoder as additional coder for encoding and decoding them. The reason for this change in 265569@main, was the serialization.in files do not know hot to deal with template struct/class. These composite path segments are defined as templates for two types. So the encoding/decoding code was implemented in WebCoreArgumentCoders.h. This caused a perf regression in MotionMark CanvasLines subtest.

Comment 1 Radar WebKit Bug Importer 2023-06-30 08:30:45 PDT

<rdar://problem/111570644>

Comment 2 Said Abou-Hallawa 2023-06-30 09:15:58 PDT

Pull request: https://github.com/WebKit/WebKit/pull/15451

Comment 3 EWS 2023-06-30 19:27:22 PDT

Committed 265680@main (7dc4e7c7d38b): <https://commits.webkit.org/265680@main>

Reviewed commits have been landed. Closing PR #15451 and removing active labels.