126670 2014-01-08 16:02:06 -0800 Constructors for Objective-C classes do not work properly with instanceof 2014-01-09 11:10:58 -0800 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 mhahnenberg mhahnenberg commit-queue oldest_to_newest 965673 0 mhahnenberg 2014-01-08 16:02:06 -0800 This is due to the fact that the JS constructors created for Objective-C classes via the JSC API inherit from JSCallbackObject, which overrides hasInstance with its own customHasInstance. JSCallbackObject::customHasInstance only checks the JSClassRefs for hasInstance callbacks. If it doesn't find any callbacks, it returns false. One way to fix this would be to change JSCallbackObject::customHasInstance to return JSObject::defaultHasInstance in the case where no hasInstance callbacks are found. 965674 1 mhahnenberg 2014-01-08 16:02:47 -0800 <rdar://problem/15710527> 965675 2 220672 mhahnenberg 2014-01-08 16:11:01 -0800 Created attachment 220672 Patch 965678 3 220672 ggaren 2014-01-08 16:21:02 -0800 Comment on attachment 220672 Patch r=me 965680 4 220674 mhahnenberg 2014-01-08 16:30:17 -0800 Created attachment 220674 Patch 965995 5 220674 commit-queue 2014-01-09 11:10:56 -0800 Comment on attachment 220674 Patch Clearing flags on attachment: 220674 Committed r161564: <http://trac.webkit.org/changeset/161564> 965996 6 commit-queue 2014-01-09 11:10:58 -0800 All reviewed patches have been landed. Closing bug. 220672 2014-01-08 16:11:01 -0800 2014-01-08 16:30:15 -0800 Patch bug-126670-20140108161100.patch text/plain 2939 mhahnenberg SW5kZXg6IFNvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gU291 cmNlL0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkocmV2aXNpb24gMTYxNTI0KQorKysgU291cmNl L0phdmFTY3JpcHRDb3JlL0NoYW5nZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDIyIEBA CisyMDE0LTAxLTA4ICBNYXJrIEhhaG5lbmJlcmcgIDxtaGFobmVuYmVyZ0BhcHBsZS5jb20+CisK KyAgICAgICAgQ29uc3RydWN0b3JzIGZvciBPYmplY3RpdmUtQyBjbGFzc2VzIGRvIG5vdCB3b3Jr IHByb3Blcmx5IHdpdGggaW5zdGFuY2VvZgorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9y Zy9zaG93X2J1Zy5jZ2k/aWQ9MTI2NjcwCisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChP T1BTISkuCisKKyAgICAgICAgVGhpcyBidWcgaXMgZHVlIHRvIHRoZSBmYWN0IHRoYXQgdGhlIEpT IGNvbnN0cnVjdG9ycyBjcmVhdGVkIGZvciBPYmplY3RpdmUtQyBjbGFzc2VzIHZpYSB0aGUgSlND IAorICAgICAgICBBUEkgaW5oZXJpdCBmcm9tIEpTQ2FsbGJhY2tPYmplY3QsIHdoaWNoIG92ZXJy 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