| //@ 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>(#[allow(dead_code)] &'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(); | |
| } |