RESOLVED FIXED 291195
[JSC] Iterator helpers incorrectly close iterators on early errors 
https://bugs.webkit.org/show_bug.cgi?id=291195
Summary [JSC] Iterator helpers incorrectly close iterators on early errors
zloirock
Reported 2025-04-07 05:07:00 PDT
Iterator.prototype.drop.call({ next() { return { done: true } }, return() { this.closed = true } }, NaN) Returns TypeError (Iterator result interface is not an object), expected RangeError (Iterator.prototype.drop argument must not be NaN). https://tc39.es/ecma262/#sec-iteratorclose - exit on step 5, not 7.
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Radar WebKit Bug Importer
Comment 1 2025-04-07 15:04:23 PDT
<rdar://problem/148774612>
Yusuke Suzuki
Comment 2 2025-04-17 05:32:25 PDT
Pull request: https://github.com/WebKit/WebKit/pull/44191
EWS
Comment 3 2025-04-17 21:09:24 PDT
Committed 293842@main (d6f3d9c7c304): <https://commits.webkit.org/293842@main> Reviewed commits have been landed. Closing PR #44191 and removing active labels.
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