On 4 August 2011 19:34, Brendan Eich <bren...@mozilla.com> wrote: > On Jul 31, 2011, at 1:04 PM, Sean Eagan wrote: > >> A 'receiver' argument is not needed because it would never be >> different than the proxy, and the proxy can either be passed as an >> argument or stored either as an own property of the handler, or as a >> value keyed by the handler in a weak map, which there seems to have >> been TC39 concensus on. > > Ok, right -- even without the extra proxy parameter in addition to receiver, > dropping receiver makes sense. Sorry to go in a circle on this. > > It's a trap API change, and I agree with Mark that we need Tom to bless it.
I would welcome removing the extra receiver (or proxy) arguments from get and set traps. However, it seems to me that the main reason, currently, for having them is that they are needed by the default traps, in case the respective descriptor returned by getOwnPropertyDescriptor has a getter/setter (which need a receiver). Arguably, making a proxy trap return getters/setters seems a somewhat pointless use case anyway. But nevertheless we need to have some reasonable semantics for it. /Andreas _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss
