rust/tests/ui/inference/issue-36053.rs
2024-02-16 20:02:50 +00:00

23 lines
609 B
Rust

//@ 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();
}