| // Test closure that takes two references and is supposed to return | |
| // the first, but actually returns the second. This should fail within | |
| // the closure. | |
| // compile-flags:-Zverbose-internals | |
| #![feature(rustc_attrs)] | |
| #[rustc_regions] | |
| fn test() { | |
| expect_sig(|a, b| b); // ought to return `a` | |
| //~^ ERROR | |
| } | |
| fn expect_sig<F>(f: F) -> F | |
| where F: for<'a> FnMut(&'a i32, &i32) -> &'a i32 | |
| { | |
| f | |
| } | |
| fn deref(_p: &i32) { } | |
| fn main() { } |