[strawman] Symbol.thenable proposal
ljharb at gmail.com
Sat Apr 14 21:42:18 UTC 2018
This proposal is that Symbol.thenable can be false, or true (which is a
no-op). A future proposal could make it *also* be a string or symbol
(IsPropertyKey), and then change the method name.
In other words, I don't think there's a conflict, and I think that changing
the method name could and should be a followon proposal.
On Sat, Apr 14, 2018 at 1:25 PM, Gus Caplan <me at gus.host> wrote:
> It's a fair point, i assume the usage would be like if the property
> exists then ignore thenable behaviour and if it is falsy then none of
> any of this behaviour would occur, so a Module Namespace Object could
> have like [whateverSymbolName]: null, if thats sorta what you are
> On 2018-04-14 13:11:34, Michael Theriot wrote:
> > A hypothetical proposal addressing that would intersect with this.
> > On Sat, Apr 14, 2018 at 2:01 PM, <me at gus.host <mailto:me at gus.host>>
> > I don't understand why you would expect that, can you explain a bit
> > more?
> > -Gus
> > On 14 Apr 2018 10:53, Michael Theriot <michael.lee.theriot at gmail.com
> > <mailto:michael.lee.theriot at gmail.com>> wrote:
> > Currently 'then' is effectively a reserved key and I'd expect
> > any extension that allows the language to ignore it likewise
> > include a means of changing the key entirely.
> > On Apr 12, 2018, at 9:33 PM, Gus Caplan <me at gus.host
> > <mailto:me at gus.host>> wrote:
> > Hello all,
> > In an effort to curtail the interesting behavior of
> > Promise.resolve (especially
> > with regard to dynamic import), I have created a proposal
> > for a well-known
> > symbol which will allow an object to not be treated as a
> > "thenable."
> > I am privy to the current protocol proposal which might be a
> > better fit for
> > this, but due to dynamic import already being stage 3, I
> > don't feel we should
> > wait for it to come to fruition.
> > Comments and suggestions are of course quite welcome at the
> > repo .
> > Thanks,
> > -Gus
> > : https://github.com/devsnek/proposal-symbol-thenable
> > <https://github.com/devsnek/proposal-symbol-thenable>
> > _______________________________________________
> > es-discuss mailing list
> > es-discuss at mozilla.org <mailto:es-discuss at mozilla.org>
> > https://mail.mozilla.org/listinfo/es-discuss
> > <https://mail.mozilla.org/listinfo/es-discuss>
> es-discuss mailing list
> es-discuss at mozilla.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the es-discuss