tests/compile-fail/filter_methods.rs

   1 #![feature(plugin)]
   2 #![plugin(clippy)]
   3
   4 #![deny(clippy, clippy_pedantic)]
   5 fn main() {
   6     let _: Vec<_> = vec![5; 6].into_iter() //~ERROR called `filter(p).map(q)` on an `Iterator`
   7                               .filter(|&x| x == 0)
   8                               .map(|x| x * 2)
   9                               .collect();
  10
  11     let _: Vec<_> = vec![5_i8; 6].into_iter() //~ERROR called `filter(p).flat_map(q)` on an `Iterator`
  12                                 .filter(|&x| x == 0)
  13                                 .flat_map(|x| x.checked_mul(2))
  14                                 .collect();
  15
  16     let _: Vec<_> = vec![5_i8; 6].into_iter() //~ERROR called `filter_map(p).flat_map(q)` on an `Iterator`
  17                                 .filter_map(|x| x.checked_mul(2))
  18                                 .flat_map(|x| x.checked_mul(2))
  19                                 .collect();
  20
  21     let _: Vec<_> = vec![5_i8; 6].into_iter() //~ERROR called `filter_map(p).map(q)` on an `Iterator`
  22                                 .filter_map(|x| x.checked_mul(2))
  23                                 .map(|x| x.checked_mul(2))
  24                                 .collect();
  25 }