Le 03/09/2013 16:15, Tab Atkins Jr. a écrit : > On Tue, Sep 3, 2013 at 1:24 AM, Simon Sapin <simon.sapin@exyr.org> wrote: >> Le 03/09/2013 09:15, Simon Sapin a écrit : >>> Le 03/09/2013 03:00, Xidorn Quan a écrit : >>>> I believe that :matches which supports complete complex selector is >>>> hard, if not impossible, to be implemented in a fast way, but it is >>>> possible for the pseudo-class I requested which narrows the looking-up >>>> range to its descendents. >>> >>> Is it? As far as I understand, the problem here is that a dynamic change >>> anywhere in the tree, in the presence of such selectors, would require a >>> big part of the tree or the whole document to be restyled. >>> >>> Does your proposal really help with that? Especially (see below) if the >>> argument to :has() can start with a combinator. > > Boris has said before that a restricted form of :has() that only > selected for children would likely be acceptable from a performance > standpoint. Then it would definitely be worth having, in the fast profile. -- Simon SapinReceived on Tuesday, 3 September 2013 15:35:22 UTC
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