mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-27 23:20:39 +00:00
503 lines
17 KiB
Text
503 lines
17 KiB
Text
error: for loop over `option`, which is an `Option`. This is more readably written as an `if let` statement.
|
|
--> $DIR/for_loop.rs:27:14
|
|
|
|
|
27 | for x in option {
|
|
| ^^^^^^
|
|
|
|
|
= note: `-D clippy::for-loop-over-option` implied by `-D warnings`
|
|
= help: consider replacing `for x in option` with `if let Some(x) = option`
|
|
|
|
error: for loop over `result`, which is a `Result`. This is more readably written as an `if let` statement.
|
|
--> $DIR/for_loop.rs:32:14
|
|
|
|
|
32 | for x in result {
|
|
| ^^^^^^
|
|
|
|
|
= note: `-D clippy::for-loop-over-result` implied by `-D warnings`
|
|
= help: consider replacing `for x in result` with `if let Ok(x) = result`
|
|
|
|
error: for loop over `option.ok_or("x not found")`, which is a `Result`. This is more readably written as an `if let` statement.
|
|
--> $DIR/for_loop.rs:36:14
|
|
|
|
|
36 | for x in option.ok_or("x not found") {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: consider replacing `for x in option.ok_or("x not found")` with `if let Ok(x) = option.ok_or("x not found")`
|
|
|
|
error: you are iterating over `Iterator::next()` which is an Option; this will compile but is probably not what you want
|
|
--> $DIR/for_loop.rs:42:14
|
|
|
|
|
42 | for x in v.iter().next() {
|
|
| ^^^^^^^^^^^^^^^
|
|
|
|
|
= note: `-D clippy::iter-next-loop` implied by `-D warnings`
|
|
|
|
error: for loop over `v.iter().next().and(Some(0))`, which is an `Option`. This is more readably written as an `if let` statement.
|
|
--> $DIR/for_loop.rs:47:14
|
|
|
|
|
47 | for x in v.iter().next().and(Some(0)) {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: consider replacing `for x in v.iter().next().and(Some(0))` with `if let Some(x) = v.iter().next().and(Some(0))`
|
|
|
|
error: for loop over `v.iter().next().ok_or("x not found")`, which is a `Result`. This is more readably written as an `if let` statement.
|
|
--> $DIR/for_loop.rs:51:14
|
|
|
|
|
51 | for x in v.iter().next().ok_or("x not found") {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= help: consider replacing `for x in v.iter().next().ok_or("x not found")` with `if let Ok(x) = v.iter().next().ok_or("x not found")`
|
|
|
|
error: this loop never actually loops
|
|
--> $DIR/for_loop.rs:63:5
|
|
|
|
|
63 | / while let Some(x) = option {
|
|
64 | | println!("{}", x);
|
|
65 | | break;
|
|
66 | | }
|
|
| |_____^
|
|
|
|
|
= note: `-D clippy::never-loop` implied by `-D warnings`
|
|
|
|
error: this loop never actually loops
|
|
--> $DIR/for_loop.rs:69:5
|
|
|
|
|
69 | / while let Ok(x) = result {
|
|
70 | | println!("{}", x);
|
|
71 | | break;
|
|
72 | | }
|
|
| |_____^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:96:14
|
|
|
|
|
96 | for i in 0..vec.len() {
|
|
| ^^^^^^^^^^^^
|
|
|
|
|
= note: `-D clippy::needless-range-loop` implied by `-D warnings`
|
|
help: consider using an iterator
|
|
|
|
|
96 | for <item> in &vec {
|
|
| ^^^^^^ ^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:105:14
|
|
|
|
|
105 | for i in 0..vec.len() {
|
|
| ^^^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
105 | for <item> in &vec {
|
|
| ^^^^^^ ^^^^
|
|
|
|
error: the loop variable `j` is only used to index `STATIC`.
|
|
--> $DIR/for_loop.rs:110:14
|
|
|
|
|
110 | for j in 0..4 {
|
|
| ^^^^
|
|
help: consider using an iterator
|
|
|
|
|
110 | for <item> in STATIC.iter().take(4) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `j` is only used to index `CONST`.
|
|
--> $DIR/for_loop.rs:114:14
|
|
|
|
|
114 | for j in 0..4 {
|
|
| ^^^^
|
|
help: consider using an iterator
|
|
|
|
|
114 | for <item> in CONST.iter().take(4) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is used to index `vec`
|
|
--> $DIR/for_loop.rs:118:14
|
|
|
|
|
118 | for i in 0..vec.len() {
|
|
| ^^^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
118 | for (i, <item>) in vec.iter().enumerate() {
|
|
| ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec2`.
|
|
--> $DIR/for_loop.rs:126:14
|
|
|
|
|
126 | for i in 0..vec.len() {
|
|
| ^^^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
126 | for <item> in vec2.iter().take(vec.len()) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:130:14
|
|
|
|
|
130 | for i in 5..vec.len() {
|
|
| ^^^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
130 | for <item> in vec.iter().skip(5) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:134:14
|
|
|
|
|
134 | for i in 0..MAX_LEN {
|
|
| ^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
134 | for <item> in vec.iter().take(MAX_LEN) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:138:14
|
|
|
|
|
138 | for i in 0..=MAX_LEN {
|
|
| ^^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
138 | for <item> in vec.iter().take(MAX_LEN + 1) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:142:14
|
|
|
|
|
142 | for i in 5..10 {
|
|
| ^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
142 | for <item> in vec.iter().take(10).skip(5) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is only used to index `vec`.
|
|
--> $DIR/for_loop.rs:146:14
|
|
|
|
|
146 | for i in 5..=10 {
|
|
| ^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
146 | for <item> in vec.iter().take(10 + 1).skip(5) {
|
|
| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is used to index `vec`
|
|
--> $DIR/for_loop.rs:150:14
|
|
|
|
|
150 | for i in 5..vec.len() {
|
|
| ^^^^^^^^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
150 | for (i, <item>) in vec.iter().enumerate().skip(5) {
|
|
| ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: the loop variable `i` is used to index `vec`
|
|
--> $DIR/for_loop.rs:154:14
|
|
|
|
|
154 | for i in 5..10 {
|
|
| ^^^^^
|
|
help: consider using an iterator
|
|
|
|
|
154 | for (i, <item>) in vec.iter().enumerate().take(10).skip(5) {
|
|
| ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:158:14
|
|
|
|
|
158 | for i in 10..0 {
|
|
| ^^^^^
|
|
|
|
|
= note: `-D clippy::reverse-range-loop` implied by `-D warnings`
|
|
help: consider using the following if you are attempting to iterate over this range in reverse
|
|
|
|
|
158 | for i in (0..10).rev() {
|
|
| ^^^^^^^^^^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:162:14
|
|
|
|
|
162 | for i in 10..=0 {
|
|
| ^^^^^^
|
|
help: consider using the following if you are attempting to iterate over this range in reverse
|
|
|
|
|
162 | for i in (0...10).rev() {
|
|
| ^^^^^^^^^^^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:166:14
|
|
|
|
|
166 | for i in MAX_LEN..0 {
|
|
| ^^^^^^^^^^
|
|
help: consider using the following if you are attempting to iterate over this range in reverse
|
|
|
|
|
166 | for i in (0..MAX_LEN).rev() {
|
|
| ^^^^^^^^^^^^^^^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:170:14
|
|
|
|
|
170 | for i in 5..5 {
|
|
| ^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:195:14
|
|
|
|
|
195 | for i in 10..5 + 4 {
|
|
| ^^^^^^^^^
|
|
help: consider using the following if you are attempting to iterate over this range in reverse
|
|
|
|
|
195 | for i in (5 + 4..10).rev() {
|
|
| ^^^^^^^^^^^^^^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:199:14
|
|
|
|
|
199 | for i in (5 + 2)..(3 - 1) {
|
|
| ^^^^^^^^^^^^^^^^
|
|
help: consider using the following if you are attempting to iterate over this range in reverse
|
|
|
|
|
199 | for i in ((3 - 1)..(5 + 2)).rev() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
error: this range is empty so this for loop will never run
|
|
--> $DIR/for_loop.rs:203:14
|
|
|
|
|
203 | for i in (5 + 2)..(8 - 1) {
|
|
| ^^^^^^^^^^^^^^^^
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:225:15
|
|
|
|
|
225 | for _v in vec.iter() {}
|
|
| ^^^^^^^^^^ help: to write this more concisely, try: `&vec`
|
|
|
|
|
= note: `-D clippy::explicit-iter-loop` implied by `-D warnings`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:227:15
|
|
|
|
|
227 | for _v in vec.iter_mut() {}
|
|
| ^^^^^^^^^^^^^^ help: to write this more concisely, try: `&mut vec`
|
|
|
|
error: it is more concise to loop over containers instead of using explicit iteration methods`
|
|
--> $DIR/for_loop.rs:230:15
|
|
|
|
|
230 | for _v in out_vec.into_iter() {}
|
|
| ^^^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `out_vec`
|
|
|
|
|
= note: `-D clippy::explicit-into-iter-loop` implied by `-D warnings`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:233:15
|
|
|
|
|
233 | for _v in array.into_iter() {}
|
|
| ^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&array`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:238:15
|
|
|
|
|
238 | for _v in [1, 2, 3].iter() {}
|
|
| ^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&[1, 2, 3]`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:242:15
|
|
|
|
|
242 | for _v in [0; 32].iter() {}
|
|
| ^^^^^^^^^^^^^^ help: to write this more concisely, try: `&[0; 32]`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:247:15
|
|
|
|
|
247 | for _v in ll.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&ll`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:250:15
|
|
|
|
|
250 | for _v in vd.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&vd`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:253:15
|
|
|
|
|
253 | for _v in bh.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&bh`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:256:15
|
|
|
|
|
256 | for _v in hm.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&hm`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:259:15
|
|
|
|
|
259 | for _v in bt.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&bt`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:262:15
|
|
|
|
|
262 | for _v in hs.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&hs`
|
|
|
|
error: it is more concise to loop over references to containers instead of using explicit iteration methods
|
|
--> $DIR/for_loop.rs:265:15
|
|
|
|
|
265 | for _v in bs.iter() {}
|
|
| ^^^^^^^^^ help: to write this more concisely, try: `&bs`
|
|
|
|
error: you are iterating over `Iterator::next()` which is an Option; this will compile but is probably not what you want
|
|
--> $DIR/for_loop.rs:267:15
|
|
|
|
|
267 | for _v in vec.iter().next() {}
|
|
| ^^^^^^^^^^^^^^^^^
|
|
|
|
error: you are collect()ing an iterator and throwing away the result. Consider using an explicit for loop to exhaust the iterator
|
|
--> $DIR/for_loop.rs:274:5
|
|
|
|
|
274 | vec.iter().cloned().map(|x| out.push(x)).collect::<Vec<_>>();
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
|
= note: `-D clippy::unused-collect` implied by `-D warnings`
|
|
|
|
error: the variable `_index` is used as a loop counter. Consider using `for (_index, item) in &vec.enumerate()` or similar iterators
|
|
--> $DIR/for_loop.rs:279:15
|
|
|
|
|
279 | for _v in &vec {
|
|
| ^^^^
|
|
|
|
|
= note: `-D clippy::explicit-counter-loop` implied by `-D warnings`
|
|
|
|
error: the variable `_index` is used as a loop counter. Consider using `for (_index, item) in &vec.enumerate()` or similar iterators
|
|
--> $DIR/for_loop.rs:285:15
|
|
|
|
|
285 | for _v in &vec {
|
|
| ^^^^
|
|
|
|
error: you seem to want to iterate on a map's values
|
|
--> $DIR/for_loop.rs:395:19
|
|
|
|
|
395 | for (_, v) in &m {
|
|
| ^^
|
|
|
|
|
= note: `-D clippy::for-kv-map` implied by `-D warnings`
|
|
help: use the corresponding method
|
|
|
|
|
395 | for v in m.values() {
|
|
| ^ ^^^^^^^^^^
|
|
|
|
error: you seem to want to iterate on a map's values
|
|
--> $DIR/for_loop.rs:400:19
|
|
|
|
|
400 | for (_, v) in &*m {
|
|
| ^^^
|
|
help: use the corresponding method
|
|
|
|
|
400 | for v in (*m).values() {
|
|
| ^ ^^^^^^^^^^^^^
|
|
|
|
error: you seem to want to iterate on a map's values
|
|
--> $DIR/for_loop.rs:408:19
|
|
|
|
|
408 | for (_, v) in &mut m {
|
|
| ^^^^^^
|
|
help: use the corresponding method
|
|
|
|
|
408 | for v in m.values_mut() {
|
|
| ^ ^^^^^^^^^^^^^^
|
|
|
|
error: you seem to want to iterate on a map's values
|
|
--> $DIR/for_loop.rs:413:19
|
|
|
|
|
413 | for (_, v) in &mut *m {
|
|
| ^^^^^^^
|
|
help: use the corresponding method
|
|
|
|
|
413 | for v in (*m).values_mut() {
|
|
| ^ ^^^^^^^^^^^^^^^^^
|
|
|
|
error: you seem to want to iterate on a map's keys
|
|
--> $DIR/for_loop.rs:419:24
|
|
|
|
|
419 | for (k, _value) in rm {
|
|
| ^^
|
|
help: use the corresponding method
|
|
|
|
|
419 | for k in rm.keys() {
|
|
| ^ ^^^^^^^^^
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:472:14
|
|
|
|
|
472 | for i in 0..src.len() {
|
|
| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[..src.len()].clone_from_slice(&src[..])`
|
|
|
|
|
= note: `-D clippy::manual-memcpy` implied by `-D warnings`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:477:14
|
|
|
|
|
477 | for i in 0..src.len() {
|
|
| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[10..(src.len() + 10)].clone_from_slice(&src[..])`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:482:14
|
|
|
|
|
482 | for i in 0..src.len() {
|
|
| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[..src.len()].clone_from_slice(&src[10..])`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:487:14
|
|
|
|
|
487 | for i in 11..src.len() {
|
|
| ^^^^^^^^^^^^^ help: try replacing the loop by: `dst[11..src.len()].clone_from_slice(&src[(11 - 10)..(src.len() - 10)])`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:492:14
|
|
|
|
|
492 | for i in 0..dst.len() {
|
|
| ^^^^^^^^^^^^ help: try replacing the loop by: `dst.clone_from_slice(&src[..dst.len()])`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:505:14
|
|
|
|
|
505 | for i in 10..256 {
|
|
| ^^^^^^^
|
|
help: try replacing the loop by
|
|
|
|
|
505 | for i in dst[10..256].clone_from_slice(&src[(10 - 5)..(256 - 5)])
|
|
506 | dst2[(10 + 500)..(256 + 500)].clone_from_slice(&src[10..256]) {
|
|
|
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:517:14
|
|
|
|
|
517 | for i in 10..LOOP_OFFSET {
|
|
| ^^^^^^^^^^^^^^^ help: try replacing the loop by: `dst[(10 + LOOP_OFFSET)..(LOOP_OFFSET + LOOP_OFFSET)].clone_from_slice(&src[(10 - some_var)..(LOOP_OFFSET - some_var)])`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:530:14
|
|
|
|
|
530 | for i in 0..src_vec.len() {
|
|
| ^^^^^^^^^^^^^^^^ help: try replacing the loop by: `dst_vec[..src_vec.len()].clone_from_slice(&src_vec[..])`
|
|
|
|
error: it looks like you're manually copying between slices
|
|
--> $DIR/for_loop.rs:557:14
|
|
|
|
|
557 | for i in 0..src.len() {
|
|
| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[..src.len()].clone_from_slice(&src[..])`
|
|
|
|
error: the variable `count` is used as a loop counter. Consider using `for (count, item) in text.chars().enumerate()` or similar iterators
|
|
--> $DIR/for_loop.rs:618:19
|
|
|
|
|
618 | for ch in text.chars() {
|
|
| ^^^^^^^^^^^^
|
|
|
|
error: the variable `count` is used as a loop counter. Consider using `for (count, item) in text.chars().enumerate()` or similar iterators
|
|
--> $DIR/for_loop.rs:629:19
|
|
|
|
|
629 | for ch in text.chars() {
|
|
| ^^^^^^^^^^^^
|
|
|
|
error: aborting due to 61 previous errors
|
|
|