[Bug 28591] [Shadow]: Figure out a good replacement for /deep/ in testing scenarios

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28591

--- Comment #9 from Tab Atkins Jr. <jackalmage@gmail.com> ---
(In reply to Hayato Ito from comment #8)
> (In reply to Tab Atkins Jr. from comment #7)
> > (In reply to Hayato Ito from comment #6)
> > > Is there any existing clients who use *static-profile*?
> > > Does it mean '/deep/' can be used in particular APIs?
> > 
> > It's for querySelector()/etc.
> 
> Thanks.
> 
> Can everyone agree that '/deep/' is okay to be used in querySelector()?
> 
> I think we are assuming that adding something to static profile is
> zero-overhead to the performance of dynamic profile.

Correct. At worst, it's a check during grammar verification, to note that this
isn't valid in the current context and so the selector should be considered
grammar-violating.

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Received on Friday, 8 May 2015 17:29:18 UTC