src/test/ui/deref-patterns/basic.rs

   1 // run-pass
   2 // check-run-results
   3 #![feature(string_deref_patterns)]
   4
   5 fn main() {
   6     test(Some(String::from("42")));
   7     test(Some(String::new()));
   8     test(None);
   9 }
  10
  11 fn test(o: Option<String>) {
  12     match o {
  13         Some("42") => println!("the answer"),
  14         Some(_) => println!("something else?"),
  15         None => println!("nil"),
  16     }
  17 }