tests/ui/manual_instant_elapsed.rs

   1 // run-rustfix
   2 #![warn(clippy::manual_instant_elapsed)]
   3 #![allow(clippy::unnecessary_operation)]
   4 #![allow(clippy::unchecked_duration_subtraction)]
   5 #![allow(unused_variables)]
   6 #![allow(unused_must_use)]
   7
   8 use std::time::Instant;
   9
  10 fn main() {
  11     let prev_instant = Instant::now();
  12
  13     {
  14         // don't influence
  15         let another_instant = Instant::now();
  16     }
  17
  18     let duration = Instant::now() - prev_instant;
  19
  20     // don't catch
  21     let duration = prev_instant.elapsed();
  22
  23     Instant::now() - duration;
  24
  25     let ref_to_instant = &Instant::now();
  26
  27     Instant::now() - *ref_to_instant; // to ensure parens are added correctly
  28 }