rust/tests/ui/iter_kv_map.fixed

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2022-08-29 18:39:25 +00:00
// run-rustfix
#![warn(clippy::iter_kv_map)]
#![allow(clippy::redundant_clone)]
#![allow(clippy::suspicious_map)]
use std::collections::{BTreeMap, HashMap};
fn main() {
let get_key = |(key, _val)| key;
let map: HashMap<u32, u32> = HashMap::new();
let _ = map.keys().collect::<Vec<_>>();
let _ = map.values().collect::<Vec<_>>();
let _ = map.values().map(|v| v + 2).collect::<Vec<_>>();
let _ = map.values().map(|val| {val}).collect::<Vec<_>>();
let _ = map.clone().into_keys().collect::<Vec<_>>();
let _ = map.clone().into_keys().map(|key| key + 2).collect::<Vec<_>>();
let _ = map.clone().into_values().collect::<Vec<_>>();
let _ = map.clone().into_values().map(|val| val + 2).collect::<Vec<_>>();
let _ = map.clone().values().collect::<Vec<_>>();
map.keys().filter(|x| *x % 2 == 0).count();
// Don't lint
map.iter().filter(|(_, val)| *val % 2 == 0).map(|(key, _)| key).count();
map.iter().map(get_key).collect::<Vec<_>>();
// Linting the following could be an improvement to the lint
// map.iter().filter_map(|(_, val)| (val % 2 == 0).then(val * 17)).count();
// Lint
map.keys().map(|key| key * 9).count();
map.values().map(|value| value * 17).count();
let map: BTreeMap<u32, u32> = BTreeMap::new();
let _ = map.keys().collect::<Vec<_>>();
let _ = map.values().collect::<Vec<_>>();
let _ = map.values().map(|v| v + 2).collect::<Vec<_>>();
let _ = map.values().map(|val| {val}).collect::<Vec<_>>();
let _ = map.clone().into_keys().collect::<Vec<_>>();
let _ = map.clone().into_keys().map(|key| key + 2).collect::<Vec<_>>();
let _ = map.clone().into_values().collect::<Vec<_>>();
let _ = map.clone().into_values().map(|val| val + 2).collect::<Vec<_>>();
let _ = map.clone().values().collect::<Vec<_>>();
map.keys().filter(|x| *x % 2 == 0).count();
// Don't lint
map.iter().filter(|(_, val)| *val % 2 == 0).map(|(key, _)| key).count();
map.iter().map(get_key).collect::<Vec<_>>();
// Linting the following could be an improvement to the lint
// map.iter().filter_map(|(_, val)| (val % 2 == 0).then(val * 17)).count();
// Lint
map.keys().map(|key| key * 9).count();
map.values().map(|value| value * 17).count();
}