Re: The :min-width/:max-width pseudo-classes

On Fri, Mar 22, 2013 at 7:26 PM, Tab Atkins Jr. <jackalmage@gmail.com>wrote:

> ...
> >
> > That requires shared state because you're assuming we do something in
> terms
> > of levels which isn't really how layout works. If two blocks are
> positioned
> > and not nested we'll lay them out entirely in parallel.
> >
> > I don't want the spec requiring us to share style state between the
> layout
> > threads.
>
> That sounds pretty reasonable, I think.
>
> Does that mean we'd need to shut down other things too, like region
> flows between viewports?
>
>
>
Yeah, you need the same kind of isolation as an iframe, but I can
understand not wanting all the weight of a frame.

For the record I really like the concept of this, I just don't want it to
prevent optimizations on future devices with tons of cores, especially
since implementing this will probably be a lot of work in addition to the
work for parallel layout/selector matching. :)

- E