natively negotiating sync vs. async...without callbacks

[Tom Van Cutsem]

>
> The spirit of the proposal is that this special type of statement be a
> linear sequence of function executions (as opposed to nested
> function-reference callbacks delegating execution to other code).
>
> The special behavior is that in between each part/expression of the
> statement, evaluation of the statement itself (NOT the rest of the program)
> may be "suspended" until the previous part/expression is fulfilled. This
> would conceptually be like a yield/continuation localized to ONLY the
> statement in question, not affecting the linear execution of the rest of the
> program.
>

This reminds me of a proposal by Kris Zyp a couple of months ago ("single
frame continuations")
https://mail.mozilla.org/pipermail/es-discuss/2010-March/010865.html

I don't think that discussion lead to a clear outcome, but it's definitely
related, both in terms of goals as well as in mechanism.
I also recall it prompted Dave Herman to sketch the design space of
(single-frame) continuations for JS:
https://mail.mozilla.org/pipermail/es-discuss/2010-April/010894.html

Cheers,
Tom
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