autocomplete misspelled Andre' , apologies
On Thu, Mar 6, 2014 at 2:34 PM, Andrea Giammarchi < [email protected]> wrote: > Thanks Andrew, I wonder if I should update the proposed spec somehow, but > I thought as it is combines both Names and Symbols as abstract. > > Please let me know and I'll update. > > Best Regards > > > On Thu, Mar 6, 2014 at 1:21 PM, André Bargull <[email protected]>wrote: > >> I would rephrase into this: >> >> if you need a getOwnPropertyNames trap, you might need for consistency a >> getOwnPropertySymbols independently from getOwnPropertyDescriptors since >> these methods are already available. >> >> >> While it shares the same name with Object.getOwnPropertyNames(), this >> getOwnPropertyNames trap is supposed to return string and symbol keyed >> properties, see http://esdiscuss.org/topic/ownpropertykeys . >> >> >> >> I also would like to add a couple of links to support the fact >> getOwnPropertyDescriptors >> is needed, and has been asked for, since quite a while: this was 11th of >> November 2011 ... I didn't know it, and now that I do I wonder why this has >> been post-poned for so long and never discussed again. >> https://mail.mozilla.org/pipermail/es-discuss/2011-November/018275.html >> >> >> Or even earlier, >> http://wiki.ecmascript.org/doku.php?id=strawman:extended_object_api from >> 2010. >> >> >> Best Regards >> >> >> On Thu, Mar 6, 2014 at 11:24 AM, C. Scott Ananian <ecmascript at cscott.net >> <https://mail.mozilla.org/listinfo/es-discuss>>wrote: >> >> >* If you use a getOwnPropertyNames trap, then you also need a >> * >> >* getOwnPropertySymbols trap to implement getOwnPropertyDescriptors. >> *>* --scott >> *> >> >* On Thu, Mar 6, 2014 at 2:16 AM, Tom Van Cutsem <tomvc.be at gmail.com >> ><https://mail.mozilla.org/listinfo/es-discuss>> wrote: >> *>* > 2014-03-05 20:11 GMT+01:00 C. Scott Ananian <ecmascript at cscott.net >> <https://mail.mozilla.org/listinfo/es-discuss>>: >> *>* >> >> *>* >> On Wed, Mar 5, 2014 at 1:39 PM, Tom Van Cutsem <tomvc.be at gmail.com >> <https://mail.mozilla.org/listinfo/es-discuss>> >> * >> >* wrote: >> *>* >> > Object.getOwnPropertyDescriptors(proxy) would trigger the >> *>* >> > getOwnPropertyNames trap, followed by calls to the >> *>* >> > getOwnPropertyDescriptor >> *>* >> > trap for each individual property. >> *>* >> >> *>* >> [[OwnPropertyKeys]], `ownKeys` trap. >> *>* > >> *>* > >> *>* > Yes, according to the current draft spec. I have a pending discussion >> *>* with >> *>* > Allen that we actually need to reintroduce a [[GetOwnPropertyNames]] >> *>* > internal method / getOwnPropertyNames trap, as the `ownKeys` trap >> *>* doesn't do >> *>* > any invariant checking, which is needed for a reliable Object.isFrozen >> *>* test. >> *>* > >> *>* > Regards, >> *>* > Tom >> *> >> >> >
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