| pub fn foo(params: Option<&[&str]>) -> usize { | |
| params.unwrap().first().unwrap().len() | |
| } | |
| fn main() { | |
| let name = "Foo"; | |
| let x = Some(&[name]); | |
| let msg = foo(x); | |
| //~^ ERROR mismatched types | |
| //~| expected type `std::option::Option<&[&str]>` | |
| //~| found type `std::option::Option<&[&str; 1]>` | |
| //~| expected slice, found array of 1 elements | |
| assert_eq!(msg, 3); | |
| } |