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authortrav90 <travawine@protonmail.ch>2018-04-07 12:24:30 -0500
committertrav90 <travawine@protonmail.ch>2018-04-07 13:11:38 -0500
commitbbd4001cb261cc54e2adf804ea7cbeb09078d7d9 (patch)
tree581523beea01c0b144051caebb6cb8a95539717a /js/src/gc/Barrier.cpp
parentd960419686462067cb5745dcd1ad264abe0b1485 (diff)
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Fix Value::isGCThing footgun, stop returning true for NullValue
Diffstat (limited to 'js/src/gc/Barrier.cpp')
-rw-r--r--js/src/gc/Barrier.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/js/src/gc/Barrier.cpp b/js/src/gc/Barrier.cpp
index f19f6f046..6dab8d25b 100644
--- a/js/src/gc/Barrier.cpp
+++ b/js/src/gc/Barrier.cpp
@@ -56,7 +56,7 @@ HeapSlot::preconditionForWriteBarrierPost(NativeObject* obj, Kind kind, uint32_t
bool isCorrectSlot = kind == Slot
? obj->getSlotAddressUnchecked(slot)->get() == target
: static_cast<HeapSlot*>(obj->getDenseElements() + slot)->get() == target;
- bool isBlackToGray = target.isMarkable() &&
+ bool isBlackToGray = target.isGCThing() &&
IsMarkedBlack(obj) && JS::GCThingIsMarkedGray(JS::GCCellPtr(target));
return isCorrectSlot && !isBlackToGray;
}