On May 17, 2011, at 9:03 AM, Gregor Richards wrote:
> In the uninstrumented branch (both JIT and interpreter), the lastIndexOf
> property of Array.prototype (which we set) is marked as enumerable, so a
> for...in loop outputs it.
That sounds like a bug. You should file a bug report with the test case that
demonstrates the bug. You should also test in other JavaScript engines to make
sure this is actually a bug.
Despite how strongly you are interested in the problem that directly affects
your project, you have to recognize that questions about the behavior of your
modified copy of JavaScriptCore aren’t going to be as interesting to the folks
working on JavaScriptCore as the bug you found. Getting that bug fixed could
lead to the solution to your problem.
-- Darin
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