rust/tests/ui/unnecessary_find_map.rs

24 lines
500 B
Rust

#![allow(dead_code)]
fn main() {
let _ = (0..4).find_map(|x| if x > 1 { Some(x) } else { None });
let _ = (0..4).find_map(|x| {
if x > 1 {
return Some(x);
};
None
});
let _ = (0..4).find_map(|x| match x {
0 | 1 => None,
_ => Some(x),
});
let _ = (0..4).find_map(|x| Some(x + 1));
let _ = (0..4).find_map(i32::checked_abs);
}
fn find_map_none_changes_item_type() -> Option<bool> {
"".chars().find_map(|_| None)
}