tests/ui/filter_methods.rs

   1 #![feature(tool_lints)]
   2
   3
   4 #![warn(clippy::all, clippy::pedantic)]
   5 #![allow(clippy::missing_docs_in_private_items)]
   6
   7 fn main() {
   8     let _: Vec<_> = vec![5; 6].into_iter()
   9                               .filter(|&x| x == 0)
  10                               .map(|x| x * 2)
  11                               .collect();
  12
  13     let _: Vec<_> = vec![5_i8; 6].into_iter()
  14                                 .filter(|&x| x == 0)
  15                                 .flat_map(|x| x.checked_mul(2))
  16                                 .collect();
  17
  18     let _: Vec<_> = vec![5_i8; 6].into_iter()
  19                                 .filter_map(|x| x.checked_mul(2))
  20                                 .flat_map(|x| x.checked_mul(2))
  21                                 .collect();
  22
  23     let _: Vec<_> = vec![5_i8; 6].into_iter()
  24                                 .filter_map(|x| x.checked_mul(2))
  25                                 .map(|x| x.checked_mul(2))
  26                                 .collect();
  27 }