RESOLVED FIXED 278296
Make sure Markable is set when dereferencing it and getting its value 
https://bugs.webkit.org/show_bug.cgi?id=278296
Summary Make sure Markable is set when dereferencing it and getting its value
Chris Dumez
Reported 2024-08-18 15:06:20 PDT
Make sure WTF::Markable is set when dereferencing it and getting its value, similarly to what is done with std::optional. We currently have no check so you can dereference an unset Markable and get an unexpected value. This matters a lot when using Markable with ObjectIdentifier for example. ObjectIdentifier is expected to be a valid identifier, however, you can easily get can invalid ObjectIdentifier if it was stored in a Markable.
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Add attachment proposed patch, testcase, etc.
Chris Dumez
Comment 1 2024-08-18 15:08:31 PDT
Pull request: https://github.com/WebKit/WebKit/pull/32363
EWS
Comment 2 2024-08-18 20:08:36 PDT
Committed 282412@main (1b44f3a2465f): <https://commits.webkit.org/282412@main> Reviewed commits have been landed. Closing PR #32363 and removing active labels.
Radar WebKit Bug Importer
Comment 3 2024-08-18 20:09:12 PDT
<rdar://problem/134221754>
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