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Bug 1155292 - Add a check for properties found on non-native prototypes during Ion caching, r=jandem.

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This commit is contained in:
Brian Hackett 2015-04-28 11:05:28 -07:00
parent 18920e544d
commit 5ec92c71a3
1 changed files with 4 additions and 1 deletions
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5
js/src/jit/IonCaches.cpp
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@ -3041,8 +3041,11 @@ CanAttachNativeSetProp(JSContext* cx, HandleObject obj, HandleId id, ConstantOrR
// a stub to add the property until we do the VM call to add. If the
// property exists as a data property on the prototype, we should add
// a new, shadowing property.
if (obj->isNative() && (!shape || (obj != holder && shape->hasDefaultSetter() && shape->hasSlot())))
if (obj->isNative() && (!shape || (obj != holder && holder->isNative() &&
shape->hasDefaultSetter() && shape->hasSlot())))
{
return SetPropertyIC::MaybeCanAttachAddSlot;
}
if (IsImplicitNonNativeProperty(shape))
return SetPropertyIC::CanAttachNone;