| 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 enum `std::option::Option<&[&str]>` | |
| //~| found enum `std::option::Option<&[&str; 1]>` | |
| //~| expected slice `[&str]`, found array `[&str; 1]` | |
| assert_eq!(msg, 3); | |
| } |