1 // run-rustfix 2 3 #![allow(unused_imports, clippy::needless_return)] 4 #![warn(clippy::flat_map_identity)] 5 6 use std::convert; 7 main()8fn 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