Missing concrete return type for Iter::by_vals

[dignifiedquire]

I trying to upgrade from 0.22 to 1.0 and running into the following issue.
I have a trait like this

pub trait MyTrait {
  type Iter: Iterator<Item = bool>;
  fn iter(self) -> Self::Iter;
}

which currently is implemented using sth like this:

pub struct Foo {
  bv: BitVec,
}

impl<'a> MyTrait for &'a Foo {
  type Iter: bitvec::slice::BitValIter<'a, Lsb0, usize>;
  fn iter(self) -> Self::Iter {
    self.bv.iter().by_val()
  }
}

Unfortunately in 1.0 calling .by_vals() returns an opaque type (impl Iterator<Item = bool>) which I cannot use anymore in this trait definition. Any pointers on how to either work around this, or if this could be changed to return a concrete type again? Thank you

[dignifiedquire]

@myrrlyn any thoughts?

[myrrlyn]

You're right. I didn't think about that when I made the switch. Since this should be a patch-compatible change, it'll be in 1.0.2.

[dignifiedquire]

thank you!