| // build-pass (FIXME(62277): could be check-pass?) |
| #![allow(dead_code)] |
| // Regression test for #24085. Errors were occurring in region |
| // inference due to the requirement that `'a:b'`, which was getting |
| // incorrectly codegened in connection with the closure below. |
| |
| #[derive(Copy,Clone)] |
| struct Path<'a:'b, 'b> { |
| x: &'a i32, |
| tail: Option<&'b Path<'a, 'b>> |
| } |
| |
| #[allow(dead_code, unconditional_recursion)] |
| fn foo<'a,'b,F>(p: Path<'a, 'b>, mut f: F) |
| where F: for<'c> FnMut(Path<'a, 'c>) { |
| foo(p, |x| f(x)) |
| } |
| |
| fn main() { } |
