src/test/ui/array-slice-vec/slice_binary_search.rs

   1 // run-pass
   2
   3 // Test binary_search_by_key lifetime. Issue #34683
   4
   5 #[allow(dead_code)]
   6 #[derive(Debug)]
   7 struct Assignment {
   8     topic: String,
   9     partition: i32,
  10 }
  11
  12 fn main() {
  13     let xs = vec![
  14         Assignment { topic: "abc".into(), partition: 1 },
  15         Assignment { topic: "def".into(), partition: 2 },
  16         Assignment { topic: "ghi".into(), partition: 3 },
  17     ];
  18
  19     let key: &str = "def";
  20     let r = xs.binary_search_by_key(&key, |e| &e.topic);
  21     assert_eq!(Ok(1), r.map(|i| i));
  22 }