Internationalizers,
es-discuss@ is discussing requirements for built-in prototype objects, and in
the course of that discussion Brendan suggested some changes to the
Internationalization spec. If you care, please participate in the "Must
built-in prototypes also be valid instances" discussion.
https://mail.mozilla.org/pipermail/es-discuss/2012-September/thread.html#25304
https://mail.mozilla.org/pipermail/es-discuss/2012-October/thread.html#25345
Note that my wording "constructed by their constructors" isn't quite
appropriate - I tried that in the past, and we ended up with a loop in the
prototype chain. If we do make a change in the direction Brendan suggested, it
would be to specify that the prototype have all the internal properties as if
initialized by Initialize<constructor name>(prototype, undefined, undefined),
[[Class]] "<constructor name>", but [[Prototype]] Object.prototype. The
discussion may also lead in the opposite direction, making the prototype a
simple object with just the specified methods.
Norbert
On Sep 29, 2012, at 23:08 , Brendan Eich wrote:
> Norbert Lindenberg wrote:
>> Last week TC 39 approved a standard defining three new built-in constructors
>> whose instances and prototype objects all have [[Class]] "Object". Also, the
>> prototype objects are not constructed by their respective constructors, but
>> initialized by them, e.g., as Intl.Collator.call({}).
>>
>> Are you suggesting they should have "Collator", "NumberFormat", and
>> "DateTimeFormat", respectively, and the prototypes be specified as being
>> constructed by their constructors?
>
> All else equal, yes (sorry for not flagging these).
>
> Any non-equal elses in sight?
>
> /be
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