1 // run-rustfix
2 
3 #![allow(unused_imports, clippy::needless_return)]
4 #![warn(clippy::flat_map_identity)]
5 
6 use std::convert;
7 
main()8 fn main() {
9     let iterator = [[0, 1], [2, 3], [4, 5]].iter();
10     let _ = iterator.flat_map(|x| x);
11 
12     let iterator = [[0, 1], [2, 3], [4, 5]].iter();
13     let _ = iterator.flat_map(convert::identity);
14 
15     let iterator = [[0, 1], [2, 3], [4, 5]].iter();
16     let _ = iterator.flat_map(|x| return x);
17 }
18