7bc1d72778
We want to be able to iterate through digests of index files, but without always having to distinguish between dynamic and fixed types, so add a trait we can use as a trait object. Unfortunately the iterator needs to yield copies as iterators cannot yield values with life times when represented as trait objects (Box<dyn Iterator<Item = ?>>) Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>