On Fri, May 31, 2013 at 8:05 AM, Jason Orendorff <jason.orendo...@gmail.com> wrote: > On Tue, May 28, 2013 at 7:15 PM, Tab Atkins Jr. <jackalm...@gmail.com> > wrote: >> >> > ES6 could provide a Mapping class, in a standard module, that works like >> > this: >> > https://gist.github.com/jorendorff/5662673 >> > >> > All those methods are generic. Map would be a subclass of Mapping, with >> > its >> > own fast non-generic methods [...] >> >> This would be *absolutely ideal*. It would be cool if tc39 defined >> this; if not, WebIDL should be able to pick up the slack. [...] > > > Is any TC39 member interested in putting this on the agenda for the next > meeting? > > If DOM really wants this, ES (not WebIDL) should provide it. WebIDL can't > make Map a subclass of Mapping.
No, but WebIDL *can* put Map on an object's prototype chain, and redefine all the secondary methods in terms of iterator/get/set/delete, which are defined by the spec for the interface. This isn't absolutely ideal, and I'd appreciate this being done in ES, but it's a workable solution that I'm pursuing now in public-script-co...@w3.org. ~TJ _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
