| // check-pass | |
| #![allow(dead_code)] | |
| trait MatrixRow { fn dummy(&self) { }} | |
| struct Mat; | |
| impl<'a> MatrixRow for &'a Mat {} | |
| struct Rows<M: MatrixRow> { | |
| mat: M, | |
| } | |
| impl<'a> Iterator for Rows<&'a Mat> { | |
| type Item = (); | |
| fn next(&mut self) -> Option<()> { | |
| unimplemented!() | |
| } | |
| } | |
| fn main() {} |