305413 2026-01-13 12:26:29 -0800 Make toJS() conversions require correct nullness and subtyping, take 2 2026-01-16 07:38:12 -0800 1 1 1 Unclassified WebKit Bindings Safari 18 Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 305621 1 sam annevk annevk cdumez webkit-bug-importer oldest_to_newest 2171524 0 sam 2026-01-13 12:26:29 -0800 Current the generated toJS() functions allow callers to pass in null values, automatically return jsNull(). This makes the bindings pretty non-strict about specifying whether an attribute or operation return type are nullable or not, and as a result, we get it wrong a lot. They also don't actually check that the type is the type or a subtype. Anne took a crack at this problem in https://bugs.webkit.org/show_bug.cgi?id=305252, this is my crack at it. 2171532 1 sam 2026-01-13 13:08:56 -0800 Pull request: https://github.com/WebKit/WebKit/pull/56513 2172347 2 ews-feeder 2026-01-15 15:07:25 -0800 Committed 305676@main (f96aecc3dd48): <https://commits.webkit.org/305676@main> Reviewed commits have been landed. Closing PR #56513 and removing active labels. 2172348 3 webkit-bug-importer 2026-01-15 15:08:13 -0800 <rdar://problem/168260035> 2172410 4 jbedard 2026-01-15 21:06:44 -0800 Reopened Bugzilla. REGRESSION(305676@main): Broke all Apple Internal builds, tracking revert in https://bugs.webkit.org/show_bug.cgi?id=305621. 2172441 5 annevk 2026-01-15 23:42:33 -0800 <rdar://168284687> 2172447 6 annevk 2026-01-16 00:17:55 -0800 Pull request: https://github.com/WebKit/WebKit/pull/56696 2172461 7 ews-feeder 2026-01-16 02:48:09 -0800 Committed 305702@main (c6f87a59606a): <https://commits.webkit.org/305702@main> Reviewed commits have been landed. Closing PR #56696 and removing active labels. 2172510 8 annevk 2026-01-16 07:38:12 -0800 *** Bug 305252 has been marked as a duplicate of this bug. ***