Proposal: JDK-8148917 Enhanced-For Statement Should Allow Streams
brian.goetz at oracle.com
Thu Mar 14 19:45:41 UTC 2019
> A new concern from me is that this change would allow Iterable and
> Stream to be used in foreach, but not Iterator. This seems like an
> odd/sharp conceptual edge.
Not actually a new concern — this was discussed back in JSR 335 as well.
> Why not make `Iterator` implement `IterableOnce`? The default method
> would obviously just return `this`.
Such a default would not conform to the contract, as IO requires that subsequent calls throw.
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