On Fri, Oct 4, 2013 at 12:19 PM, Yutaka Hirano <[email protected]> wrote:

> Promises are currently being specified at [1] and according to [2] they
> will be introduced in ES6.
> I would like to implement them behind a flag.
> The implementation will replace the Promises implementation in Blink in
> the future.
>
>  Other implementations
>
> Promises are also defined in whatwg[3] and some web browsers are
> implementing it.
>  - WebKit https://bugs.webkit.org/show_bug.cgi?id=120954
>  - Blink https://code.google.com/p/chromium/issues/detail?id=243345
>  - Firefox https://bugzilla.mozilla.org/show_bug.cgi?id=911216
>
>  Technical considerations
>
> Promises need an asynchronous task execution mechanism.
> Currently I plan to provide a "postTask" function from Blink to V8.
>

We're currently working on adding a threading API, probably similar to
blink's WebThread.

best
-jochen


>
> [1] https://github.com/domenic/promises-unwrapping/blob/master/README.md
> [2]
> https://mail.mozilla.org/pipermail/es-discuss/2013-September/033560.html
> [3] http://dom.spec.whatwg.org/#promises
>
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