[Bug 22522] WebIDL, error handling, and promises

https://www.w3.org/Bugs/Public/show_bug.cgi?id=22522

Domenic Denicola <domenic@domenicdenicola.com> changed:

           What    |Removed                     |Added
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                 CC|                            |domenic@domenicdenicola.com

--- Comment #9 from Domenic Denicola <domenic@domenicdenicola.com> ---
So, we need to fix WebIDL so that whenever an error is implicitly thrown (e.g.
in the overload resolution algorithm, or maybe other places) by a
Promise-returning function, it needs to automatically translate that to
rejecting the returned promise. E.g. if I do

Promise doSomethingAsync(DOMString arg) // non-optional

var p = doSomethingAsync();

then p should be a Promise rejected with a TypeError, and a TypeError should
not have been thrown.

Should we use this bug for tracking that?

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Received on Sunday, 8 December 2013 07:33:17 UTC