I implemented this for Traceur last week. The abstraction is leaky since Traceur does not have private names yet but it is still good enough for a demo.
http://traceur-compiler.googlecode.com/svn/trunk/example/collection.html Instead of private names we just use Object.define* On Fri, Nov 11, 2011 at 08:56, Axel Rauschmayer <a...@rauschma.de> wrote: > That the [] decoupling is needed can by seen by the fact that dicts can’t > have a size() method (as opposed to the dictionary solution in the > strawman). > On Nov 11, 2011, at 17:45 , Allen Wirfs-Brock wrote: > > thanks, a good suggestion. > > Actually they are quite different. The dict proposal is simply defining one > new data types that can be used as a key value store which is guaranteed not > to have any pre-existing key conflicts prior to initial use. > > My proposal, defines a general extensible mechanism that JS programmers can > use to define many kinds of new collection abstractions all of which use a > consistent accessing syntax whose semantics is completely under the control > of the programmer. > > A comparison to 'dict' which shares the expressed goals of the above > > proposal would be a great addition. Roughly speaking it appears to be > > "more ambitious than", meaning more effort and more power. > > -- > Dr. Axel Rauschmayer > a...@rauschma.de > home: rauschma.de > twitter: twitter.com/rauschma > blog: 2ality.com > > > > _______________________________________________ > es-discuss mailing list > es-discuss@mozilla.org > https://mail.mozilla.org/listinfo/es-discuss > > -- erik _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
