Since JSSLOT_CLASS_MASK_BITS is uint32 type, ~JSSLOT_CLASS_MASK_BITS is 32bit value on cl.exe for x64. So JSObject::getClass() always return invalid pointer. This code was checked in by Bug 493457.
Comment on attachment 394479 [details] [diff] [review] patch v1 I happen to still be awake, I'll save mrbkap from this one since I asked for its introduction. :-\ No pushing for me now, either someone else will get it first or I do it sometime tomorrow (today).
Assignee: general → m_kato
Status: NEW → RESOLVED
Closed: 10 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla1.9.3
Target Milestone: mozilla1.9.3 → mozilla1.9.3a1
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