On Tue, Apr 29, 2014 at 4:07 PM, Jason Orendorff <[email protected]>wrote:
> On Tue, Apr 29, 2014 at 2:40 AM, Andy Wingo <[email protected]> wrote: > > == Calling return() on early exit from for-of is expensive > > > > Wrapping a try/finally around each for-of is going to be really > > expensive in all engines right now. I'm skeptical about our ability to > > optimize this one away. Avoiding try/catch around for-of was one reason > > to move away from StopIteration, and it would be a pity to re-impose > > this cost on every for-of because of what is, in the end, an uncommon > > use case. > > Andy, please see > <http://esdiscuss.org/topic/april-8-2014-meeting-notes#content-16>. I > don't see a big performance cost here. > I also found Allen's response to my question at < http://esdiscuss.org/topic/april-8-2014-meeting-notes#content-25> informative. -- Cheers, --MarkM
_______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
