On Jul 22, 2009, at 5:35 PM, Eric Seidel wrote:
What is HasStandardGetOwnPropertySlot adding? Is it testable?
It’s an optimization.
If it’s set, then the JavaScript engine won’t even call
getOwnPropertySlot, saving the overhead of a virtual function call. If
it’s not set, then the engine will call the virtual function.
If you forget to set it, the only test that you can do is a
performance test; it will be too slow. If you set and should not, then
you can test; getOwnPropertySlot won’t get called since you set the
flag.
-- Darin
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