| fn f<T>(x: Vec<T>) -> T { return x.into_iter().next().unwrap(); } | |
| fn g<F>(act: F) -> isize where F: FnOnce(Vec<isize>) -> isize { return act(vec![1, 2, 3]); } | |
| pub fn main() { | |
| assert_eq!(g(f), 1); | |
| let f1 = f; | |
| assert_eq!(f1(vec!["x".to_string(), "y".to_string(), "z".to_string()]), | |
| "x".to_string()); | |
| } |