[Webkit-unassigned] [Bug 64250] Global strict mode function leaking global object as "this".

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64250





--- Comment #5 from Gavin Barraclough <barraclough at apple.com>  2011-07-13 14:37:09 PST ---
(In reply to comment #2)
> http://code.google.com/p/v8/issues/detail?id=1547 has a testcase in comment 6, correct ES5 output is "oooouuuu", Firefox does "ioiouuuu" for backward compat (but we would like to break that in a coordinated move by browser vendors, with site evangelism as needed).
> 
> /be

Hey Brendan,

Thanks for the test case.  Just to confirm, the text in the test case seems to be incorrect in stating the expected result to be "iooouuuu", whereas my understanding agrees with your comment that the correct result should be "oooouuuu".

I've expanded the test to cover 'with' behaviour.  I'd expected that the correct this value to be passed in all cases of with statements should be the base object that the property is being accessed off, but looking at the spec (and Safari/FireFox behaviour!) this is incorrect, since the definition for the comma operator causes GetValue to be called on the reference.  It would be great to get confirmation that my understanding here is correct!

WRT to coordinating releases, that would be great.  I'll probably fix this in ToT soon so we can start the bug finding /evangelism process.  I think you guys have plans on a faster release cycle than we do right now - any idea when you'd expect to see this change in a release Firefox?

many thanks,
G.

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