[aalvarado]

Yup, seeing method signatures like these is discouraging:

``` core::iter::Zip<core::iter::FilterMap<'_, (&std::collections::hash::set::HashSet<attr::Attribute>, &attr::Attribute), &attr::Attribute, core::iter::Zip<core::iter::Repeat<&std::collections::hash::set::HashSet<attr::Attribute>>, core::iter::Map<'_, (&attr::Attribute, &()), &attr::Attribute, std::collections::hash::map::Entries<'_, attr::Attribute, ()>>>>, core::iter::FilterMap<'_, (&std::collections::hash::set::HashSet<attr::Attribute>, &attr::Attribute), &attr::Attribute, core::iter::Zip<core::iter::Repeat<&std::collections::hash::set::HashSet<attr::Attribute>>, core::iter::Map<'_, (&attr::Attribute, &()), &attr::Attribute, std::collections::hash::map::Entries<'_, attr::Attribute, ()>>>>> ``

[kibwen]

Ha, we hate them too, which is why we're so eager to finalize their design so that we can replace all of that hideous garbage with just `impl Iterator`. :)

And who knows, it might happen for 1.0 if enough people push on the design and are willing to put in the legwork of implementing it.

[aalvarado]

thanks for your hard work. Sometimes we take simplicity for granted!

[jimbokun]

What is that, if I may ask?

[mitchmindtree]

That particular type is an Iterator over two HashSet intersections zipped together. I'm looking forward to getting rid of it!

[bjz_]

This is a huge ergonomic issue that the team is very aware of. There are plans to fix it post 1.0.