Rewinding iterators

[Marcus Stade]

Thanks for filing that! Now I also know where to file bugs, so doubly
thanks!

-- Marcus


On Mon, Apr 7, 2014 at 10:00 AM, David Bruant <bruant.d at gmail.com> wrote:

>  Le 07/04/2014 02:31, Marcus Stade a écrit :
>
> In section 25.1.2 of the spec<http://wiki.ecmascript.org/lib/exe/fetch.php?id=harmony%3Aspecification_drafts&cache=cache&media=harmony:working_draft_ecma-262_edition_6_04-05-14.pdf>it says:
>
> The function returns an object that conforms to the IteratorResult
>> interface. If a previous call to the next method of an Iterator has
>> returned an IteratorResult object whose done property is true, then all
>> subsequent calls to the next method of that object must also return an
>> IteratorResult object whose done property is true,
>>
>
> Are there any practical reasons why the Iterator interface explicitly
> disallows this?
>
> There is no good reason indeed. Worse, there is no way to enforce it on
> user-generated iterators, so it'd be dangerous for standard iterator
> consumers to assume such a property.
>
> This mention should probably be removed altogether.
> Filed https://bugs.ecmascript.org/show_bug.cgi?id=2606
>
> Thanks,
>
> David
>
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