https://codereview.chromium.org/1241883002/diff/1/src/objects.cc
File src/objects.cc (right):
https://codereview.chromium.org/1241883002/diff/1/src/objects.cc#newcode5536
src/objects.cc:5536: length == 0 ?
isolate->factory()->empty_slow_element_dictionary()
On 2015/07/15 14:58:06, Igor Sheludko wrote:
Probably it would be better if GetNormalizedElementDictionary() could
return a
proper empty dictionary when length is zero.
It, unfortunately, cannot. The empty dictionary isn't exactly empty, and
we're only guaranteed that nobody will add elements to it if the
receiver holding it is prevented from being extended. Otherwise we'll
end up with shared elements between objects that reuse this "empty"
dictionary. We've had that before ...
https://codereview.chromium.org/1241883002/
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