208497 2020-03-02 20:40:20 -0800 [JSC] @hasOwnLengthProperty returns wrong value if "length" is attempted to be modified 2020-03-25 19:07:07 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 ysuzuki ysuzuki andy.niccolai ews-watchlist keith_miller mark.lam msaboff saam tzagallo webkit-bug-importer oldest_to_newest 1624927 0 ysuzuki 2020-03-02 20:40:20 -0800 [JSC] @hasOwnLengthProperty returns wrong value if "length" is attempted to be modified 1624928 1 392246 ysuzuki 2020-03-02 20:53:46 -0800 Created attachment 392246 Patch 1624929 2 ysuzuki 2020-03-02 20:54:28 -0800 <rdar://problem/59913544> 1624956 3 ysuzuki 2020-03-02 23:09:43 -0800 Checked mac-wk2 results and seems unrelated. Flaky crashes which happen without a patch too. 1625094 4 392246 mark.lam 2020-03-03 09:45:35 -0800 Comment on attachment 392246 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=392246&action=review r=me > Source/JavaScriptCore/ChangeLog:20 > + 2. We rename areNameAndLengthOriginal to canAssumeNameAndLengthOriginal to allow it to return I suggest calling this canAssumeNameAndLengthAreOriginal instead. 1625107 5 392246 ysuzuki 2020-03-03 10:16:43 -0800 Comment on attachment 392246 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=392246&action=review >> Source/JavaScriptCore/ChangeLog:20 >> + 2. We rename areNameAndLengthOriginal to canAssumeNameAndLengthOriginal to allow it to return > > I suggest calling this canAssumeNameAndLengthAreOriginal instead. Fixed. 1625108 6 ysuzuki 2020-03-03 10:17:59 -0800 Committed r257784: <https://trac.webkit.org/changeset/257784> 1634163 7 ysuzuki 2020-03-25 19:07:07 -0700 *** Bug 209571 has been marked as a duplicate of this bug. *** 392246 2020-03-02 20:53:46 -0800 2020-03-03 09:45:35 -0800 Patch bug-208497-20200302205346.patch text/plain 13417 ysuzuki U3VidmVyc2lvbiBSZXZpc2lvbjogMjU3NzYwCmRpZmYgLS1naXQgYS9Tb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nIGIvU291cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwppbmRleCBm MDU1ODE1OGNjMGRkMDNkMWIzMDA3NTE2MWEyMjRiMjZkMjlkMTkzLi4yYjU3M2ZlY2ViNGZjNjAw MDkxZTVjNDIwYzA2NDZlZTUwNmJkOGU5IDEwMDY0NAotLS0gYS9Tb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCisrKyBiL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSw0MiBAQAorMjAyMC0wMy0wMiAgWXVzdWtlIFN1enVraSAgPHlzdXp1a2lAYXBwbGUuY29t PgorCisgICAgICAgIFtKU0NdIEBoYXNPd25MZW5ndGhQcm9wZXJ0eSByZXR1cm5zIHdyb25nIHZh bHVlIGlmICJsZW5ndGgiIGlzIGF0dGVtcHRlZCB0byBiZSBtb2RpZmllZAorICAgICAgICBodHRw 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