| //! ICE: https://github.com/rust-lang/rust/issues/114121 |
| //! This test checks that MIR validation never constrains |
| //! new hidden types that *differ* from the actual hidden types. |
| //! This test used to ICE because oli-obk assumed mir validation |
| //! was only ever run after opaque types were revealed in MIR. |
| |
| // compile-flags: -Zvalidate-mir |
| // check-pass |
| |
| fn main() { |
| let _ = Some(()).into_iter().flat_map(|_| Some(()).into_iter().flat_map(func)); |
| } |
| |
| fn func(_: ()) -> impl Iterator<Item = ()> { |
| Some(()).into_iter().flat_map(|_| vec![]) |
| } |
