2015-08-25 16:26:20 +00:00
|
|
|
use std::collections::*;
|
2016-07-01 18:55:45 +00:00
|
|
|
use std::rc::Rc;
|
2015-08-25 16:26:20 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
static STATIC: [usize; 4] = [0, 1, 8, 16];
|
|
|
|
const CONST: [usize; 4] = [0, 1, 8, 16];
|
2016-03-07 22:24:11 +00:00
|
|
|
|
2018-07-28 15:34:52 +00:00
|
|
|
#[warn(clippy::all)]
|
2015-08-17 05:23:57 +00:00
|
|
|
struct Unrelated(Vec<u8>);
|
|
|
|
impl Unrelated {
|
|
|
|
fn next(&self) -> std::slice::Iter<u8> {
|
|
|
|
self.0.iter()
|
|
|
|
}
|
2015-08-25 16:26:20 +00:00
|
|
|
|
|
|
|
fn iter(&self) -> std::slice::Iter<u8> {
|
|
|
|
self.0.iter()
|
|
|
|
}
|
2015-08-17 05:23:57 +00:00
|
|
|
}
|
|
|
|
|
2018-12-09 22:26:16 +00:00
|
|
|
#[warn(
|
|
|
|
clippy::needless_range_loop,
|
|
|
|
clippy::explicit_iter_loop,
|
|
|
|
clippy::explicit_into_iter_loop,
|
|
|
|
clippy::iter_next_loop,
|
|
|
|
clippy::reverse_range_loop,
|
|
|
|
clippy::for_kv_map
|
|
|
|
)]
|
2018-07-28 15:34:52 +00:00
|
|
|
#[warn(clippy::unused_collect)]
|
2018-12-09 22:26:16 +00:00
|
|
|
#[allow(
|
|
|
|
clippy::linkedlist,
|
|
|
|
clippy::shadow_unrelated,
|
|
|
|
clippy::unnecessary_mut_passed,
|
2019-02-23 01:19:50 +00:00
|
|
|
clippy::cognitive_complexity,
|
2018-12-09 22:26:16 +00:00
|
|
|
clippy::similar_names
|
|
|
|
)]
|
2018-10-20 20:03:38 +00:00
|
|
|
#[allow(clippy::many_single_char_names, unused_variables, clippy::into_iter_on_array)]
|
2015-08-12 19:56:27 +00:00
|
|
|
fn main() {
|
2016-02-07 17:10:03 +00:00
|
|
|
const MAX_LEN: usize = 42;
|
|
|
|
|
2015-08-13 13:36:31 +00:00
|
|
|
let mut vec = vec![1, 2, 3, 4];
|
2015-08-12 19:56:27 +00:00
|
|
|
let vec2 = vec![1, 2, 3, 4];
|
2016-01-14 19:58:32 +00:00
|
|
|
for i in 0..vec.len() {
|
2015-08-12 19:56:27 +00:00
|
|
|
println!("{}", vec[i]);
|
|
|
|
}
|
2016-03-07 22:24:11 +00:00
|
|
|
|
2016-07-10 12:05:57 +00:00
|
|
|
for i in 0..vec.len() {
|
|
|
|
let i = 42; // make a different `i`
|
|
|
|
println!("{}", vec[i]); // ok, not the `i` of the for-loop
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in 0..vec.len() {
|
|
|
|
let _ = vec[i];
|
|
|
|
}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2016-03-07 22:24:11 +00:00
|
|
|
// ICE #746
|
|
|
|
for j in 0..4 {
|
|
|
|
println!("{:?}", STATIC[j]);
|
|
|
|
}
|
|
|
|
|
|
|
|
for j in 0..4 {
|
|
|
|
println!("{:?}", CONST[j]);
|
|
|
|
}
|
|
|
|
|
2016-01-14 19:58:32 +00:00
|
|
|
for i in 0..vec.len() {
|
2015-08-12 19:56:27 +00:00
|
|
|
println!("{} {}", vec[i], i);
|
|
|
|
}
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in 0..vec.len() {
|
|
|
|
// not an error, indexing more than one variable
|
2015-08-12 19:56:27 +00:00
|
|
|
println!("{} {}", vec[i], vec2[i]);
|
|
|
|
}
|
2015-08-13 13:36:31 +00:00
|
|
|
|
2016-01-14 20:04:34 +00:00
|
|
|
for i in 0..vec.len() {
|
|
|
|
println!("{}", vec2[i]);
|
|
|
|
}
|
|
|
|
|
2016-01-14 19:58:32 +00:00
|
|
|
for i in 5..vec.len() {
|
2015-09-02 10:41:51 +00:00
|
|
|
println!("{}", vec[i]);
|
|
|
|
}
|
|
|
|
|
2016-02-07 17:10:03 +00:00
|
|
|
for i in 0..MAX_LEN {
|
|
|
|
println!("{}", vec[i]);
|
|
|
|
}
|
|
|
|
|
2017-09-28 17:40:19 +00:00
|
|
|
for i in 0..=MAX_LEN {
|
2016-03-07 15:55:12 +00:00
|
|
|
println!("{}", vec[i]);
|
|
|
|
}
|
|
|
|
|
2016-01-14 19:58:32 +00:00
|
|
|
for i in 5..10 {
|
|
|
|
println!("{}", vec[i]);
|
|
|
|
}
|
|
|
|
|
2017-09-28 17:40:19 +00:00
|
|
|
for i in 5..=10 {
|
2016-03-07 15:55:12 +00:00
|
|
|
println!("{}", vec[i]);
|
|
|
|
}
|
|
|
|
|
2016-01-14 19:58:32 +00:00
|
|
|
for i in 5..vec.len() {
|
|
|
|
println!("{} {}", vec[i], i);
|
|
|
|
}
|
|
|
|
|
|
|
|
for i in 5..10 {
|
|
|
|
println!("{} {}", vec[i], i);
|
|
|
|
}
|
|
|
|
|
2016-02-07 17:10:03 +00:00
|
|
|
for i in 10..0 {
|
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-28 17:40:19 +00:00
|
|
|
for i in 10..=0 {
|
2016-03-07 15:55:12 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-02-08 13:58:07 +00:00
|
|
|
for i in MAX_LEN..0 {
|
2015-09-15 00:19:05 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-02-08 13:58:07 +00:00
|
|
|
for i in 5..5 {
|
2015-09-15 00:19:05 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-28 17:40:19 +00:00
|
|
|
for i in 5..=5 {
|
2017-09-05 10:53:52 +00:00
|
|
|
// not an error, this is the range with only one element “5”
|
2016-03-07 15:55:12 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in 0..10 {
|
|
|
|
// not an error, the start index is less than the end index
|
2015-09-15 00:19:05 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in -10..0 {
|
|
|
|
// not an error
|
2015-10-26 06:43:38 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in (10..0).map(|x| x * 2) {
|
|
|
|
// not an error, it can't be known what arbitrary methods do to a range
|
2015-09-15 05:20:56 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
|
|
|
// testing that the empty range lint folds constants
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in 10..5 + 4 {
|
2015-09-15 05:20:56 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in (5 + 2)..(3 - 1) {
|
2015-09-15 05:20:56 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in (5 + 2)..(8 - 1) {
|
2015-09-15 05:20:56 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in (2 * 2)..(2 * 3) {
|
|
|
|
// no error, 4..6 is fine
|
2015-09-15 05:20:56 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
|
|
|
let x = 42;
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in x..10 {
|
|
|
|
// no error, not constant-foldable
|
2015-09-15 05:20:56 +00:00
|
|
|
println!("{}", i);
|
|
|
|
}
|
|
|
|
|
2016-02-13 21:09:17 +00:00
|
|
|
// See #601
|
2017-09-05 10:53:52 +00:00
|
|
|
for i in 0..10 {
|
|
|
|
// no error, id_col does not exist outside the loop
|
2016-02-13 21:09:17 +00:00
|
|
|
let mut id_col = vec![0f64; 10];
|
|
|
|
id_col[i] = 1f64;
|
|
|
|
}
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in vec.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in vec.iter_mut() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
let out_vec = vec![1, 2, 3];
|
|
|
|
for _v in out_vec.into_iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2017-01-09 15:59:55 +00:00
|
|
|
let array = [1, 2, 3];
|
2017-01-30 13:25:25 +00:00
|
|
|
for _v in array.into_iter() {}
|
2017-01-09 15:59:55 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {} // these are fine
|
|
|
|
for _v in &mut vec {} // these are fine
|
2015-08-17 05:23:57 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in [1, 2, 3].iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in (&mut [1, 2, 3]).iter() {} // no error
|
2017-01-28 13:02:49 +00:00
|
|
|
|
|
|
|
for _v in [0; 32].iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-09-06 11:36:21 +00:00
|
|
|
for _v in [0; 33].iter() {} // no error
|
2017-01-28 13:02:49 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let ll: LinkedList<()> = LinkedList::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in ll.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let vd: VecDeque<()> = VecDeque::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in vd.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let bh: BinaryHeap<()> = BinaryHeap::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in bh.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let hm: HashMap<(), ()> = HashMap::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in hm.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let bt: BTreeMap<(), ()> = BTreeMap::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in bt.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let hs: HashSet<()> = HashSet::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in hs.iter() {}
|
2017-02-08 13:58:07 +00:00
|
|
|
|
2015-08-25 16:26:20 +00:00
|
|
|
let bs: BTreeSet<()> = BTreeSet::new();
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in bs.iter() {}
|
2017-01-28 13:02:49 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in vec.iter().next() {}
|
2015-08-17 05:23:57 +00:00
|
|
|
|
|
|
|
let u = Unrelated(vec![]);
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in u.next() {} // no error
|
|
|
|
for _v in u.iter() {} // no error
|
2015-08-30 11:10:59 +00:00
|
|
|
|
|
|
|
let mut out = vec![];
|
2017-07-10 13:30:28 +00:00
|
|
|
vec.iter().cloned().map(|x| out.push(x)).collect::<Vec<_>>();
|
|
|
|
let _y = vec.iter().cloned().map(|x| out.push(x)).collect::<Vec<_>>(); // this is fine
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
// Loop with explicit counter variable
|
|
|
|
|
|
|
|
// Potential false positives
|
|
|
|
let mut _index = 0;
|
|
|
|
_index = 1;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
|
|
|
_index += 1;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
if true {
|
|
|
|
_index = 1
|
|
|
|
}
|
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
|
|
|
let mut _index = 1;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index += 1;
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index *= 2;
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index = 1;
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
let mut _index = 0;
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
_index += 1;
|
|
|
|
_index = 0;
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
for _x in 0..1 {
|
|
|
|
_index += 1;
|
|
|
|
}
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for x in &vec {
|
|
|
|
if *x == 1 {
|
|
|
|
_index += 1
|
|
|
|
}
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
if true {
|
|
|
|
_index = 1
|
|
|
|
};
|
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-08-23 17:25:45 +00:00
|
|
|
|
|
|
|
let mut _index = 1;
|
2017-09-05 10:53:52 +00:00
|
|
|
if false {
|
|
|
|
_index = 0
|
|
|
|
};
|
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-09-10 12:33:29 +00:00
|
|
|
|
2015-12-19 00:04:33 +00:00
|
|
|
let mut index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
{
|
|
|
|
let mut _x = &mut index;
|
|
|
|
}
|
|
|
|
for _v in &vec {
|
|
|
|
_index += 1
|
|
|
|
}
|
2015-11-25 23:09:01 +00:00
|
|
|
|
|
|
|
let mut index = 0;
|
2017-09-05 10:53:52 +00:00
|
|
|
for _v in &vec {
|
|
|
|
index += 1
|
|
|
|
}
|
2015-11-25 23:09:01 +00:00
|
|
|
println!("index: {}", index);
|
2016-01-29 07:34:09 +00:00
|
|
|
|
2017-09-05 10:53:52 +00:00
|
|
|
fn f<T>(_: &T, _: &T) -> bool {
|
|
|
|
unimplemented!()
|
|
|
|
}
|
|
|
|
fn g<T>(_: &mut [T], _: usize, _: usize) {
|
|
|
|
unimplemented!()
|
|
|
|
}
|
2017-07-10 13:30:28 +00:00
|
|
|
for i in 1..vec.len() {
|
|
|
|
if f(&vec[i - 1], &vec[i]) {
|
|
|
|
g(&mut vec, i - 1, i);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
for mid in 1..vec.len() {
|
|
|
|
let (_, _) = vec.split_at(mid);
|
|
|
|
}
|
2016-02-05 18:14:02 +00:00
|
|
|
}
|
|
|
|
|
2017-07-10 13:30:28 +00:00
|
|
|
#[allow(dead_code)]
|
2017-09-05 10:53:52 +00:00
|
|
|
fn partition<T: PartialOrd + Send>(v: &mut [T]) -> usize {
|
2017-07-10 13:30:28 +00:00
|
|
|
let pivot = v.len() - 1;
|
|
|
|
let mut i = 0;
|
|
|
|
for j in 0..pivot {
|
|
|
|
if v[j] <= v[pivot] {
|
|
|
|
v.swap(i, j);
|
|
|
|
i += 1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
v.swap(i, pivot);
|
|
|
|
i
|
|
|
|
}
|
2017-09-05 10:53:52 +00:00
|
|
|
|
|
|
|
const LOOP_OFFSET: usize = 5000;
|
|
|
|
|
2018-07-28 15:34:52 +00:00
|
|
|
#[warn(clippy::needless_range_loop)]
|
2017-09-05 10:53:52 +00:00
|
|
|
pub fn manual_copy(src: &[i32], dst: &mut [i32], dst2: &mut [i32]) {
|
|
|
|
// plain manual memcpy
|
|
|
|
for i in 0..src.len() {
|
|
|
|
dst[i] = src[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
// dst offset memcpy
|
|
|
|
for i in 0..src.len() {
|
|
|
|
dst[i + 10] = src[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
// src offset memcpy
|
|
|
|
for i in 0..src.len() {
|
|
|
|
dst[i] = src[i + 10];
|
|
|
|
}
|
|
|
|
|
|
|
|
// src offset memcpy
|
|
|
|
for i in 11..src.len() {
|
|
|
|
dst[i] = src[i - 10];
|
|
|
|
}
|
|
|
|
|
|
|
|
// overwrite entire dst
|
|
|
|
for i in 0..dst.len() {
|
|
|
|
dst[i] = src[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
// manual copy with branch - can't easily convert to memcpy!
|
|
|
|
for i in 0..src.len() {
|
|
|
|
dst[i] = src[i];
|
|
|
|
if dst[i] > 5 {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// multiple copies - suggest two memcpy statements
|
|
|
|
for i in 10..256 {
|
|
|
|
dst[i] = src[i - 5];
|
|
|
|
dst2[i + 500] = src[i]
|
|
|
|
}
|
|
|
|
|
|
|
|
// this is a reversal - the copy lint shouldn't be triggered
|
|
|
|
for i in 10..LOOP_OFFSET {
|
|
|
|
dst[i + LOOP_OFFSET] = src[LOOP_OFFSET - i];
|
|
|
|
}
|
|
|
|
|
|
|
|
let some_var = 5;
|
|
|
|
// Offset in variable
|
|
|
|
for i in 10..LOOP_OFFSET {
|
|
|
|
dst[i + LOOP_OFFSET] = src[i - some_var];
|
|
|
|
}
|
|
|
|
|
|
|
|
// Non continuous copy - don't trigger lint
|
|
|
|
for i in 0..10 {
|
|
|
|
dst[i + i] = src[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
let src_vec = vec![1, 2, 3, 4, 5];
|
|
|
|
let mut dst_vec = vec![0, 0, 0, 0, 0];
|
|
|
|
|
|
|
|
// make sure vectors are supported
|
|
|
|
for i in 0..src_vec.len() {
|
|
|
|
dst_vec[i] = src_vec[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
// lint should not trigger when either
|
|
|
|
// source or destination type is not
|
|
|
|
// slice-like, like DummyStruct
|
|
|
|
struct DummyStruct(i32);
|
|
|
|
|
|
|
|
impl ::std::ops::Index<usize> for DummyStruct {
|
|
|
|
type Output = i32;
|
|
|
|
|
|
|
|
fn index(&self, _: usize) -> &i32 {
|
|
|
|
&self.0
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
let src = DummyStruct(5);
|
|
|
|
let mut dst_vec = vec![0; 10];
|
|
|
|
|
|
|
|
for i in 0..10 {
|
|
|
|
dst_vec[i] = src[i];
|
|
|
|
}
|
2018-10-16 04:12:59 +00:00
|
|
|
|
|
|
|
// Simplify suggestion (issue #3004)
|
|
|
|
let src = [0, 1, 2, 3, 4];
|
|
|
|
let mut dst = [0, 0, 0, 0, 0, 0];
|
|
|
|
let from = 1;
|
|
|
|
|
|
|
|
for i in from..from + src.len() {
|
|
|
|
dst[i] = src[i - from];
|
|
|
|
}
|
|
|
|
|
|
|
|
for i in from..from + 3 {
|
|
|
|
dst[i] = src[i - from];
|
|
|
|
}
|
2017-09-05 10:53:52 +00:00
|
|
|
}
|
2017-09-16 22:53:55 +00:00
|
|
|
|
2018-07-28 15:34:52 +00:00
|
|
|
#[warn(clippy::needless_range_loop)]
|
2017-09-16 22:53:55 +00:00
|
|
|
pub fn manual_clone(src: &[String], dst: &mut [String]) {
|
|
|
|
for i in 0..src.len() {
|
|
|
|
dst[i] = src[i].clone();
|
|
|
|
}
|
|
|
|
}
|
2017-10-17 20:04:35 +00:00
|
|
|
|
2018-07-28 15:34:52 +00:00
|
|
|
#[warn(clippy::needless_range_loop)]
|
2017-10-17 20:04:35 +00:00
|
|
|
pub fn manual_copy_same_destination(dst: &mut [i32], d: usize, s: usize) {
|
|
|
|
// Same source and destination - don't trigger lint
|
|
|
|
for i in 0..dst.len() {
|
|
|
|
dst[d + i] = dst[s + i];
|
|
|
|
}
|
|
|
|
}
|
2018-03-05 03:56:03 +00:00
|
|
|
|
|
|
|
mod issue_2496 {
|
|
|
|
pub trait Handle {
|
|
|
|
fn new_for_index(index: usize) -> Self;
|
|
|
|
fn index(&self) -> usize;
|
|
|
|
}
|
|
|
|
|
|
|
|
pub fn test<H: Handle>() -> H {
|
|
|
|
for x in 0..5 {
|
|
|
|
let next_handle = H::new_for_index(x);
|
|
|
|
println!("{}", next_handle.index());
|
|
|
|
}
|
|
|
|
unimplemented!()
|
|
|
|
}
|
|
|
|
}
|