| // run-pass |
| // Regression test for #36053. ICE was caused due to obligations being |
| // added to a special, dedicated fulfillment cx during a |
| // probe. Problem seems to be related to the particular definition of |
| // `FusedIterator` in std but I was not able to isolate that into an |
| // external crate. |
| |
| use std::iter::FusedIterator; |
| |
| struct Thing<'a>(&'a str); |
| impl<'a> Iterator for Thing<'a> { |
| type Item = &'a str; |
| fn next(&mut self) -> Option<&'a str> { |
| None |
| } |
| } |
| |
| impl<'a> FusedIterator for Thing<'a> {} |
| |
| fn main() { |
| Thing("test").fuse().filter(|_| true).count(); |
| } |
