On Wednesday, 10 June 2020 at 00:53:30 UTC, Seb wrote:
> [snip]
>
> Anyhow, I would be highly in favor of DMD doing this. It's one of those many things that I have on my list for D3 or a D fork.

Chapel supports zippered iteration [1]. From the discussion here, it sounds very much like the implementation is similar to what D does with tuples. It probably would be pretty trivial with first class tuples.

[1] https://chapel-lang.org/docs/language/spec/statements.html#zipper-iteration