220211 2020-12-31 09:19:57 -0800 JSFunction::deleteProperty() fails to delete a non-existent "prototype" property 2020-12-31 19:39:15 -0800 1 1 1 Unclassified WebKit JavaScriptCore WebKit Nightly Build All All RESOLVED FIXED InRadar P2 Minor --- 1 ashvayka ashvayka ews-watchlist keith_miller mark.lam msaboff saam tzagallo webkit-bug-importer ysuzuki oldest_to_newest 1716920 0 ashvayka 2020-12-31 09:19:57 -0800 JSFunction::deleteProperty() fails to delete a non-existent "prototype" property 1716921 1 416867 ashvayka 2020-12-31 09:21:47 -0800 Created attachment 416867 Patch 1716932 2 416867 ysuzuki 2020-12-31 13:07:44 -0800 Comment on attachment 416867 Patch r=me 1716943 3 ashvayka 2020-12-31 19:38:44 -0800 Committed r271117: <https://trac.webkit.org/changeset/271117> 1716944 4 webkit-bug-importer 2020-12-31 19:39:15 -0800 <rdar://problem/72760671> 416867 2020-12-31 09:21:47 -0800 2020-12-31 13:07:44 -0800 Patch bug-220211-20201231192146.patch text/plain 5883 ashvayka SW5kZXg6IEpTVGVzdHMvQ2hhbmdlTG9nCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIEpTVGVzdHMvQ2hhbmdlTG9n CShyZXZpc2lvbiAyNzExMTYpCisrKyBKU1Rlc3RzL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpA QCAtMSwzICsxLDEyIEBACisyMDIwLTEyLTMxICBBbGV4ZXkgU2h2YXlrYSAgPHNodmFpa2FsZXNo QGdtYWlsLmNvbT4KKworICAgICAgICBKU0Z1bmN0aW9uOjpkZWxldGVQcm9wZXJ0eSgpIGZhaWxz IHRvIGRlbGV0ZSBhIG5vbi1leGlzdGVudCAicHJvdG90eXBlIiBwcm9wZXJ0eQorICAgICAgICBo dHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MjIwMjExCisKKyAgICAgICAg UmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAgICAgICAgKiBzdHJlc3MvZnVuY3Rpb24t ZGVsZXRlLXByb3RvdHlwZS5qczogQWRkZWQuCisKIDIwMjAtMTItMzAgIFl1c3VrZSBTdXp1a2kg IDx5c3V6dWtpQGFwcGxlLmNvbT4KIAogICAgICAgICBVbnJldmlld2VkLCBmaXggaXRlcmF0aW9u IGNvdW50IGNoZWNrCkluZGV4OiBKU1Rlc3RzL3N0cmVzcy9mdW5jdGlvbi1kZWxldGUtcHJvdG90 eXBlLmpzCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT0KLS0tIEpTVGVzdHMvc3RyZXNzL2Z1bmN0aW9uLWRlbGV0ZS1wcm90 b3R5cGUuanMJKG5vbmV4aXN0ZW50KQorKysgSlNUZXN0cy9zdHJlc3MvZnVuY3Rpb24tZGVsZXRl LXByb3RvdHlwZS5qcwkod29ya2luZyBjb3B5KQpAQCAtMCwwICsxLDEwMyBAQAorZnVuY3Rpb24g c2hvdWxkQmUoYWN0dWFsLCBleHBlY3RlZCwgdGVzdEluZm8pIHsKKyAgICBpZiAoYWN0dWFsICE9 PSBleHBlY3RlZCkKKyAgICAgICAgdGhyb3cgbmV3IEVycm9yKGBCYWQgdmFsdWU6ICR7YWN0dWFs fSAoJHt0ZXN0SW5mb30pYCk7Cit9CisKK2Z1bmN0aW9uIHNob3VsZFRocm93KGZuLCBleHBlY3Rl ZEVycm9yLCB0ZXN0SW5mbykgeworICAgIGxldCBlcnJvclRocm93biA9IGZhbHNlOworICAgIHRy eSB7CisgICAgICAgIGZuKCk7CisgICAgfSBjYXRjaCAoZXJyb3IpIHsKKyAgICAgICAgZXJyb3JU aHJvd24gPSB0cnVlOworICAgICAgICBpZiAoZXJyb3IudG9TdHJpbmcoKSAhPT0gZXhwZWN0ZWRF cnJvcikKKyAgICAgICAgICAgIHRocm93IG5ldyBFcnJvcihgQmFkIGVycm9yOiAke2Vycm9yfSAo JHt0ZXN0SW5mb30pYCk7CisgICAgfQorICAgIGlmICghZXJyb3JUaHJvd24pCisgICAgICAgIHRo cm93IG5ldyBFcnJvcihgTm90IHRocm93biAoJHt0ZXN0SW5mb30pYCk7Cit9CisKK2Z1bmN0aW9u IGdldEZ1bmN0aW9uc1dpdGhvdXRQcm90b3R5cGUoKSB7CisgICAgY29uc3QgYXJyb3dGdW5jdGlv biA9ICgpID0+IHt9OworICAgIGNvbnN0IHsgZ2V0LCBzZXQgfSA9IE9iamVjdC5nZXRPd25Qcm9w ZXJ0eURlc2NyaXB0b3IoeyBnZXQgYWNjZXNzb3IoKSB7fSwgc2V0IGFjY2Vzc29yKF92KSB7fSB9 LCAiYWNjZXNzb3IiKTsKKworICAgIHJldHVybiBbCisgICAgICAgIGFycm93RnVuY3Rpb24sCisg ICAgICAgIGdldCwKKyAgICAgICAgc2V0LAorICAgICAgICB7IG1ldGhvZCgpIHt9IH0ubWV0aG9k LAorICAgICAgICBhc3luYyBmdW5jdGlvbiBhc3luY0Z1bmN0aW9uKCkge30sCisgICAgICAgIHsg YXN5bmMgYXN5bmNNZXRob2QoKSB7fSB9LmFzeW5jTWV0aG9kLAorICAgIF07Cit9CisKK2Z1bmN0 aW9uIGdldEZ1bmN0aW9uc1dpdGhOb25Db25maWd1cmFibGVQcm90b3R5cGUoKSB7CisgICAgcmV0 dXJuIFsKKyAgICAgICAgZnVuY3Rpb24gbm9ybWFsTm9uU3RyaWN0RnVuY3Rpb24oKSB7fSwKKyAg ICAgICAgZnVuY3Rpb24gbm9ybWFsU3RyaWN0RnVuY3Rpb24oKSB7ICJ1c2Ugc3RyaWN0IjsgfSwK KyAgICAgICAgY2xhc3MgYmFzZUNvbnN0cnVjdG9yIHt9LAorICAgICAgICBjbGFzcyBkZXJpdmVk Q29uc3RydWN0b3IgZXh0ZW5kcyBBcnJheSB7fSwKKyAgICAgICAgZnVuY3Rpb24qIHN5bmNHZW5l cmF0b3IoKSB7fSwKKyAgICAgICAgeyAqIHN5bmNHZW5lcmF0b3JNZXRob2QoKSB7fSB9LnN5bmNH ZW5lcmF0b3JNZXRob2QsCisgICAgICAgIGFzeW5jIGZ1bmN0aW9uKiBhc3luY0dlbmVyYXRvcigp IHt9LAorICAgICAgICB7IGFzeW5jICogYXN5bmNHZW5lcmF0b3JNZXRob2QoKSB7fSB9LmFzeW5j R2VuZXJhdG9yTWV0aG9kLAorICAgICAgICBBcnJheSwKKyAgICBdOworfQorCitmdW5jdGlvbiBk ZWZpbmVOb25Db25maWd1cmFibGVQcm90b3R5cGUoZm4pIHsKKyAgICByZXR1cm4gT2JqZWN0LmRl ZmluZVByb3BlcnRpZXMoZm4sIHsKKyAgICAgICAgcHJvdG90eXBlOiB7IHZhbHVlOiB7fSwgY29u ZmlndXJhYmxlOiBmYWxzZSB9LAorICAgICAgICBuYW1lOiB7IHZhbHVlOiBgcmVkZWZpbmVkICR7 Zm4ubmFtZX1gIH0sCisgICAgfSk7Cit9CisKK2NvbnN0IGZ1bmN0aW9uc1dpdGhvdXRQcm90b3R5 cGUgPSBbCisgICAgLi4uZ2V0RnVuY3Rpb25zV2l0aG91dFByb3RvdHlwZSgpLAorICAgIC4uLmdl dEZ1bmN0aW9uc1dpdGhOb25Db25maWd1cmFibGVQcm90b3R5cGUoKS5tYXAoZm4gPT4gZm4uYmlu ZCgpKSwKKyAgICBwYXJzZUludCwKK107CisKK2NvbnN0IGZ1bmN0aW9uc1dpdGhOb25Db25maWd1 cmFibGVQcm90b3R5cGUgPSBbCisgICAgLi4uZ2V0RnVuY3Rpb25zV2l0aG91dFByb3RvdHlwZSgp Lm1hcChkZWZpbmVOb25Db25maWd1cmFibGVQcm90b3R5cGUpLAorICAgIC4uLmdldEZ1bmN0aW9u c1dpdGhOb25Db25maWd1cmFibGVQcm90b3R5cGUoKSwKK107CisKKyhmdW5jdGlvbiBub25TdHJp Y3RNb2RlRGVsZXRlKCkgeworICAgIGZvciAoY29uc3QgZm4gb2YgZnVuY3Rpb25zV2l0aG91dFBy b3RvdHlwZSkgeworICAgICAgICBmb3IgKGxldCBpID0gMDsgaSA8IDFlNDsgKytpKQorICAgICAg ICAgICAgc2hvdWxkQmUoZGVsZXRlIGZuLnByb3RvdHlwZSwgdHJ1ZSwgZm4ubmFtZSk7CisgICAg fQorCisgICAgZm9yIChjb25zdCBmbiBvZiBmdW5jdGlvbnNXaXRoTm9uQ29uZmlndXJhYmxlUHJv dG90eXBlKSB7CisgICAgICAgIGZvciAobGV0IGkgPSAwOyBpIDwgMWU0OyArK2kpCisgICAgICAg ICAgICBzaG91bGRCZShkZWxldGUgZm4ucHJvdG90eXBlLCBmYWxzZSwgZm4ubmFtZSk7CisgICAg fQorfSkoKTsKKworKGZ1bmN0aW9uIHN0cmljdE1vZGVEZWxldGUoKSB7CisgICAgInVzZSBzdHJp Y3QiOworCisgICAgZm9yIChjb25zdCBmbiBvZiBmdW5jdGlvbnNXaXRob3V0UHJvdG90eXBlKSB7 CisgICAgICAgIGZvciAobGV0IGkgPSAwOyBpIDwgMWU0OyArK2kpCisgICAgICAgICAgICBzaG91 bGRCZShkZWxldGUgZm4ucHJvdG90eXBlLCB0cnVlLCBmbi5uYW1lKTsKKyAgICB9CisKKyAgICBm b3IgKGNvbnN0IGZuIG9mIGZ1bmN0aW9uc1dpdGhOb25Db25maWd1cmFibGVQcm90b3R5cGUpIHsK KyAgICAgICAgZm9yIChsZXQgaSA9IDA7IGkgPCAxZTQ7ICsraSkKKyAgICAgICAgICAgIHNob3Vs ZFRocm93KCgpID0+IHsgZGVsZXRlIGZuLnByb3RvdHlwZSB9LCAiVHlwZUVycm9yOiBVbmFibGUg dG8gZGVsZXRlIHByb3BlcnR5LiIsIGZuLm5hbWUpOworICAgIH0KK30pKCk7CisKKyhmdW5jdGlv biByZWZsZWN0RGVsZXRlUHJvcGVydHkoKSB7CisgICAgbm9JbmxpbmUoUmVmbGVjdC5kZWxldGVQ cm9wZXJ0eSk7CisKKyAgICBmb3IgKGNvbnN0IGZuIG9mIGZ1bmN0aW9uc1dpdGhvdXRQcm90b3R5 cGUpIHsKKyAgICAgICAgZm9yIChsZXQgaSA9IDA7IGkgPCAxZTQ7ICsraSkKKyAgICAgICAgICAg IHNob3VsZEJlKFJlZmxlY3QuZGVsZXRlUHJvcGVydHkoZm4sICJwcm90b3R5cGUiKSwgdHJ1ZSwg Zm4ubmFtZSk7CisgICAgfQorCisgICAgZm9yIChjb25zdCBmbiBvZiBmdW5jdGlvbnNXaXRoTm9u Q29uZmlndXJhYmxlUHJvdG90eXBlKSB7CisgICAgICAgIGZvciAobGV0IGkgPSAwOyBpIDwgMWU0 OyArK2kpCisgICAgICAgICAgICBzaG91bGRCZShSZWZsZWN0LmRlbGV0ZVByb3BlcnR5KGZuLCAi cHJvdG90eXBlIiksIGZhbHNlLCBmbi5uYW1lKTsKKyAgICB9Cit9KSgpOwpJbmRleDogU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvSmF2YVNjcmlw dENvcmUvQ2hhbmdlTG9nCShyZXZpc2lvbiAyNzExMTUpCisrKyBTb3VyY2UvSmF2YVNjcmlwdENv cmUvQ2hhbmdlTG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMTkgQEAKKzIwMjAtMTItMzEg IEFsZXhleSBTaHZheWthICA8c2h2YWlrYWxlc2hAZ21haWwuY29tPgorCisgICAgICAgIEpTRnVu Y3Rpb246OmRlbGV0ZVByb3BlcnR5KCkgZmFpbHMgdG8gZGVsZXRlIGEgbm9uLWV4aXN0ZW50ICJw cm90b3R5cGUiIHByb3BlcnR5CisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3df YnVnLmNnaT9pZD0yMjAyMTEKKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4K KworICAgICAgICBUaGlzIHBhdGNoIHJlcGxhY2VzIGFycm93IGZ1bmN0aW9uIGNoZWNrIHdpdGgg aGFzUHJvdG90eXBlUHJvcGVydHkoKSBzaW5jZSB0aGVyZQorICAgICAgICBhcmUgbW9yZSBmdW5j dGlvbnMgd2l0aG91dCBhICJwcm90b3R5cGUiIChhY2Nlc3NvcnMsIG1ldGhvZHMsIGFzeW5jIGZ1 bmN0aW9ucyksCisgICAgICAgIGFsaWduaW5nIEpTQyB3aXRoIHRoZSBzcGVjLCBWOCwgYW5kIFNw aWRlck1vbmtleS4KKworICAgICAgICBoYXNQcm90b3R5cGVQcm9wZXJ0eSgpIGlzIGFscmVhZHkg dXNlZCBieSBKU0Z1bmN0aW9uOjpnZXRPd25Qcm9wZXJ0eVNsb3QoKS4KKworICAgICAgICAqIHJ1 bnRpbWUvSlNGdW5jdGlvbi5jcHA6CisgICAgICAgIChKU0M6OkpTRnVuY3Rpb246OmRlbGV0ZVBy b3BlcnR5KToKKwogMjAyMC0xMi0zMCAgWXVzdWtlIFN1enVraSAgPHlzdXp1a2lAYXBwbGUuY29t PgogCiAgICAgICAgIFtKU0NdIFdlYkFzc2VtYmx5IFRhYmxlL01lbW9yeS9HbG9iYWwgc2hvdWxk IGFsbG93IGluaGVyaXRhbmNlCkluZGV4OiBTb3VyY2UvSmF2YVNjcmlwdENvcmUvcnVudGltZS9K U0Z1bmN0aW9uLmNwcAo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvSmF2YVNjcmlwdENvcmUvcnVudGlt ZS9KU0Z1bmN0aW9uLmNwcAkocmV2aXNpb24gMjcxMTE1KQorKysgU291cmNlL0phdmFTY3JpcHRD b3JlL3J1bnRpbWUvSlNGdW5jdGlvbi5jcHAJKHdvcmtpbmcgY29weSkKQEAgLTYwNCw3ICs2MDQs NyBAQCBib29sIEpTRnVuY3Rpb246OmRlbGV0ZVByb3BlcnR5KEpTQ2VsbCogCiAgICAgICAgIGlm ICgocHJvcGVydHlOYW1lID09IHZtLnByb3BlcnR5TmFtZXMtPmNhbGxlciB8fCBwcm9wZXJ0eU5h bWUgPT0gdm0ucHJvcGVydHlOYW1lcy0+YXJndW1lbnRzKSAmJiBleGVjdXRhYmxlLT5oYXNDYWxs ZXJBbmRBcmd1bWVudHNQcm9wZXJ0aWVzKCkpCiAgICAgICAgICAgICByZXR1cm4gZmFsc2U7CiAK LSAgICAgICAgaWYgKHByb3BlcnR5TmFtZSA9PSB2bS5wcm9wZXJ0eU5hbWVzLT5wcm90b3R5cGUg JiYgIWV4ZWN1dGFibGUtPmlzQXJyb3dGdW5jdGlvbigpKQorICAgICAgICBpZiAocHJvcGVydHlO YW1lID09IHZtLnByb3BlcnR5TmFtZXMtPnByb3RvdHlwZSAmJiBleGVjdXRhYmxlLT5oYXNQcm90 b3R5cGVQcm9wZXJ0eSgpKQogICAgICAgICAgICAgcmV0dXJuIGZhbHNlOwogCiAgICAgICAgIHRo aXNPYmplY3QtPnJlaWZ5TGF6eVByb3BlcnR5SWZOZWVkZWQodm0sIGdsb2JhbE9iamVjdCwgcHJv cGVydHlOYW1lKTsK