2 // will emits unused mut warnings after fixing
4 // will emits needless collect warnings after fixing
5 #![allow(clippy::needless_collect)]
6 #![warn(clippy::iter_with_drain)]
7 use std::collections::{BinaryHeap, HashMap, HashSet, VecDeque};
10 let mut a = vec!["aaa".to_string(), "bbb".to_string()];
11 let mut a: BinaryHeap<_> = a.drain(..).collect();
12 let mut a: HashSet<_> = a.drain().collect();
13 let mut a: VecDeque<_> = a.drain().collect();
14 let mut a: Vec<_> = a.drain(..).collect();
15 let mut a: HashMap<_, _> = a.drain(..).map(|x| (x.clone(), x)).collect();
16 let _: Vec<(String, String)> = a.drain().collect();
20 let mut a = vec!["aaa".to_string(), "bbb".to_string()];
21 let mut a: BinaryHeap<_> = a.drain(0..).collect();
22 let mut a: HashSet<_> = a.drain().collect();
23 let mut a: VecDeque<_> = a.drain().collect();
24 let mut a: Vec<_> = a.drain(..a.len()).collect();
25 let mut a: HashMap<_, _> = a.drain(0..a.len()).map(|x| (x.clone(), x)).collect();
26 let _: Vec<(String, String)> = a.drain().collect();
29 fn should_not_help() {
30 let mut a = vec!["aaa".to_string(), "bbb".to_string()];
31 let mut a: BinaryHeap<_> = a.drain(1..).collect();
32 let mut a: HashSet<_> = a.drain().collect();
33 let mut a: VecDeque<_> = a.drain().collect();
34 let mut a: Vec<_> = a.drain(..a.len() - 1).collect();
35 let mut a: HashMap<_, _> = a.drain(1..a.len() - 1).map(|x| (x.clone(), x)).collect();
36 let _: Vec<(String, String)> = a.drain().collect();
38 let mut b = vec!["aaa".to_string(), "bbb".to_string()];
39 let _: Vec<_> = b.drain(0..a.len()).collect();
42 fn _closed_range(mut x: Vec<String>) {
43 let _: Vec<String> = x.drain(0..=x.len()).collect();
46 fn _with_mut(x: &mut Vec<String>, y: &mut VecDeque<String>) {
47 let _: Vec<String> = x.drain(..).collect();
48 let _: Vec<String> = y.drain(..).collect();
56 fn should_not_help_0(bomb: &mut Bomb) {
57 let _: Vec<u8> = bomb.fire.drain(..).collect();
64 should_not_help_0(&mut Bomb::default());