Bug 255529

Summary:	start variable should be checked before being passed to RegularExpression.match()
Product:	WebKit	Reporter:	Seija K. <doremylover123>
Component:	JavaScriptCore	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	ahmad.saleem792, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Seija K. 2023-04-17 09:42:20 PDT

The first iteration of regex.match is guaranteed to have start be less
than content.length(). This is because of the isEmpty check at the
beginning of the function, which means that the only time start should
be checked is when it changes. This also saves us a function call when
start is at the end of the content.

Comment 1 Radar WebKit Bug Importer 2023-04-24 09:43:19 PDT

<rdar://problem/108457928>

Comment 2 Ahmad Saleem 2024-06-04 12:46:44 PDT

PR - https://github.com/WebKit/WebKit/pull/12809