On Tue, Jul 1, 2014 at 4:06 AM, Boris Zbarsky <[email protected]> wrote:
> On 6/30/14, 3:38 PM, Jussi Kalliokoski wrote: > >> On Mon, Jun 30, 2014 at 10:16 PM, Boris Zbarsky <[email protected] >> Would it help the discussion if UA implementors described how they >> solve these problems now? >> >> Yess, please! +9999 >> > > https://ask.mozilla.org/question/850/how-do-webidl- > methodsgetterssetters-tell-whether-objects-are-of-the- > right-types/?answer=851#post-id-851 for Gecko. > > I'd be curious to hear what other UAs do. Thanks for the link! Me too. :) > As I suggested in one approach, for "natural" instances (in lack of a >> better word) of Nodes can have all the in-memory layout optimizations >> they need. >> > > Some of these are not just optimizations; some of these are needed for > correctness. For example, we use fixed parts of the object layout to cache > values for some Web IDL properties that need to keep returning the same > thing over and over again. > I might be missing something, so is there something in the idea I proposed that would prevent doing this? Cheers, Jussi
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