mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-24 05:33:27 +00:00
421 lines
14 KiB
Text
421 lines
14 KiB
Text
error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:50:14
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50 | for i in 0..vec.len() {
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| ^^^^^^^^^^^^
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= note: `-D clippy::needless-range-loop` implied by `-D warnings`
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help: consider using an iterator
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50 | for <item> in &vec {
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| ^^^^^^ ^^^^
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error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:59:14
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59 | for i in 0..vec.len() {
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| ^^^^^^^^^^^^
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help: consider using an iterator
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59 | for <item> in &vec {
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| ^^^^^^ ^^^^
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error: the loop variable `j` is only used to index `STATIC`.
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--> $DIR/for_loop.rs:64:14
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64 | for j in 0..4 {
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| ^^^^
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help: consider using an iterator
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64 | for <item> in &STATIC {
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| ^^^^^^ ^^^^^^^
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error: the loop variable `j` is only used to index `CONST`.
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--> $DIR/for_loop.rs:68:14
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68 | for j in 0..4 {
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| ^^^^
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help: consider using an iterator
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68 | for <item> in &CONST {
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| ^^^^^^ ^^^^^^
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error: the loop variable `i` is used to index `vec`
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--> $DIR/for_loop.rs:72:14
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72 | for i in 0..vec.len() {
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| ^^^^^^^^^^^^
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help: consider using an iterator
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72 | for (i, <item>) in vec.iter().enumerate() {
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| ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is only used to index `vec2`.
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--> $DIR/for_loop.rs:80:14
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80 | for i in 0..vec.len() {
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| ^^^^^^^^^^^^
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help: consider using an iterator
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80 | for <item> in vec2.iter().take(vec.len()) {
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| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:84:14
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84 | for i in 5..vec.len() {
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| ^^^^^^^^^^^^
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help: consider using an iterator
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84 | for <item> in vec.iter().skip(5) {
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| ^^^^^^ ^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:88:14
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88 | for i in 0..MAX_LEN {
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| ^^^^^^^^^^
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help: consider using an iterator
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88 | for <item> in vec.iter().take(MAX_LEN) {
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| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:92:14
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92 | for i in 0..=MAX_LEN {
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| ^^^^^^^^^^^
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help: consider using an iterator
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92 | for <item> in vec.iter().take(MAX_LEN + 1) {
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| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:96:14
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96 | for i in 5..10 {
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| ^^^^^
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help: consider using an iterator
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96 | for <item> in vec.iter().take(10).skip(5) {
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| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is only used to index `vec`.
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--> $DIR/for_loop.rs:100:14
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100 | for i in 5..=10 {
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| ^^^^^^
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help: consider using an iterator
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100 | for <item> in vec.iter().take(10 + 1).skip(5) {
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| ^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is used to index `vec`
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--> $DIR/for_loop.rs:104:14
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104 | for i in 5..vec.len() {
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| ^^^^^^^^^^^^
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help: consider using an iterator
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104 | for (i, <item>) in vec.iter().enumerate().skip(5) {
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| ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: the loop variable `i` is used to index `vec`
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--> $DIR/for_loop.rs:108:14
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108 | for i in 5..10 {
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| ^^^^^
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help: consider using an iterator
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108 | for (i, <item>) in vec.iter().enumerate().take(10).skip(5) {
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| ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:112:14
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112 | for i in 10..0 {
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| ^^^^^
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= note: `-D clippy::reverse-range-loop` implied by `-D warnings`
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help: consider using the following if you are attempting to iterate over this range in reverse
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112 | for i in (0..10).rev() {
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| ^^^^^^^^^^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:116:14
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116 | for i in 10..=0 {
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| ^^^^^^
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help: consider using the following if you are attempting to iterate over this range in reverse
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116 | for i in (0...10).rev() {
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| ^^^^^^^^^^^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:120:14
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120 | for i in MAX_LEN..0 {
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| ^^^^^^^^^^
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help: consider using the following if you are attempting to iterate over this range in reverse
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120 | for i in (0..MAX_LEN).rev() {
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| ^^^^^^^^^^^^^^^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:124:14
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124 | for i in 5..5 {
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| ^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:149:14
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149 | for i in 10..5 + 4 {
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| ^^^^^^^^^
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help: consider using the following if you are attempting to iterate over this range in reverse
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149 | for i in (5 + 4..10).rev() {
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| ^^^^^^^^^^^^^^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:153:14
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153 | for i in (5 + 2)..(3 - 1) {
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| ^^^^^^^^^^^^^^^^
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help: consider using the following if you are attempting to iterate over this range in reverse
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153 | for i in ((3 - 1)..(5 + 2)).rev() {
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| ^^^^^^^^^^^^^^^^^^^^^^^^
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error: this range is empty so this for loop will never run
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--> $DIR/for_loop.rs:157:14
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157 | for i in (5 + 2)..(8 - 1) {
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| ^^^^^^^^^^^^^^^^
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:179:15
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179 | for _v in vec.iter() {}
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| ^^^^^^^^^^ help: to write this more concisely, try: `&vec`
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= note: `-D clippy::explicit-iter-loop` implied by `-D warnings`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:181:15
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181 | for _v in vec.iter_mut() {}
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| ^^^^^^^^^^^^^^ help: to write this more concisely, try: `&mut vec`
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error: it is more concise to loop over containers instead of using explicit iteration methods`
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--> $DIR/for_loop.rs:184:15
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184 | for _v in out_vec.into_iter() {}
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| ^^^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `out_vec`
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= note: `-D clippy::explicit-into-iter-loop` implied by `-D warnings`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:187:15
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187 | for _v in array.into_iter() {}
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| ^^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&array`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:192:15
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192 | for _v in [1, 2, 3].iter() {}
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| ^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&[1, 2, 3]`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:196:15
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196 | for _v in [0; 32].iter() {}
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| ^^^^^^^^^^^^^^ help: to write this more concisely, try: `&[0; 32]`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:201:15
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201 | for _v in ll.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&ll`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:204:15
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204 | for _v in vd.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&vd`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:207:15
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207 | for _v in bh.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&bh`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:210:15
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210 | for _v in hm.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&hm`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:213:15
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213 | for _v in bt.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&bt`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:216:15
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216 | for _v in hs.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&hs`
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error: it is more concise to loop over references to containers instead of using explicit iteration methods
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--> $DIR/for_loop.rs:219:15
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219 | for _v in bs.iter() {}
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| ^^^^^^^^^ help: to write this more concisely, try: `&bs`
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error: you are iterating over `Iterator::next()` which is an Option; this will compile but is probably not what you want
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--> $DIR/for_loop.rs:221:15
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221 | for _v in vec.iter().next() {}
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| ^^^^^^^^^^^^^^^^^
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= note: `-D clippy::iter-next-loop` implied by `-D warnings`
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error: you are collect()ing an iterator and throwing away the result. Consider using an explicit for loop to exhaust the iterator
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--> $DIR/for_loop.rs:228:5
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228 | vec.iter().cloned().map(|x| out.push(x)).collect::<Vec<_>>();
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: `-D clippy::unused-collect` implied by `-D warnings`
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error: you seem to want to iterate on a map's values
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--> $DIR/for_loop.rs:337:19
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337 | for (_, v) in &m {
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| ^^
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= note: `-D clippy::for-kv-map` implied by `-D warnings`
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help: use the corresponding method
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337 | for v in m.values() {
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| ^ ^^^^^^^^^^
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error: you seem to want to iterate on a map's values
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--> $DIR/for_loop.rs:342:19
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342 | for (_, v) in &*m {
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| ^^^
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help: use the corresponding method
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342 | for v in (*m).values() {
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| ^ ^^^^^^^^^^^^^
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error: you seem to want to iterate on a map's values
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--> $DIR/for_loop.rs:350:19
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350 | for (_, v) in &mut m {
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| ^^^^^^
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help: use the corresponding method
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350 | for v in m.values_mut() {
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| ^ ^^^^^^^^^^^^^^
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error: you seem to want to iterate on a map's values
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--> $DIR/for_loop.rs:355:19
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355 | for (_, v) in &mut *m {
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| ^^^^^^^
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help: use the corresponding method
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355 | for v in (*m).values_mut() {
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| ^ ^^^^^^^^^^^^^^^^^
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error: you seem to want to iterate on a map's keys
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--> $DIR/for_loop.rs:361:24
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361 | for (k, _value) in rm {
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| ^^
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help: use the corresponding method
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361 | for k in rm.keys() {
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| ^ ^^^^^^^^^
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:414:14
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414 | for i in 0..src.len() {
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| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[..src.len()].clone_from_slice(&src[..])`
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= note: `-D clippy::manual-memcpy` implied by `-D warnings`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:419:14
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419 | for i in 0..src.len() {
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| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[10..(src.len() + 10)].clone_from_slice(&src[..])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:424:14
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424 | for i in 0..src.len() {
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| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[..src.len()].clone_from_slice(&src[10..])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:429:14
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429 | for i in 11..src.len() {
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| ^^^^^^^^^^^^^ help: try replacing the loop by: `dst[11..src.len()].clone_from_slice(&src[(11 - 10)..(src.len() - 10)])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:434:14
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434 | for i in 0..dst.len() {
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| ^^^^^^^^^^^^ help: try replacing the loop by: `dst.clone_from_slice(&src[..dst.len()])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:447:14
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447 | for i in 10..256 {
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| ^^^^^^^
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help: try replacing the loop by
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447 | for i in dst[10..256].clone_from_slice(&src[(10 - 5)..(256 - 5)])
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448 | dst2[(10 + 500)..(256 + 500)].clone_from_slice(&src[10..256]) {
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:459:14
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459 | for i in 10..LOOP_OFFSET {
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| ^^^^^^^^^^^^^^^ 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)])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:472:14
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472 | for i in 0..src_vec.len() {
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| ^^^^^^^^^^^^^^^^ help: try replacing the loop by: `dst_vec[..src_vec.len()].clone_from_slice(&src_vec[..])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:501:14
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501 | for i in from..from + src.len() {
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| ^^^^^^^^^^^^^^^^^^^^^^ help: try replacing the loop by: `dst[from..from + src.len()].clone_from_slice(&src[0..(from + src.len() - from)])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:505:14
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505 | for i in from..from + 3 {
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| ^^^^^^^^^^^^^^ help: try replacing the loop by: `dst[from..from + 3].clone_from_slice(&src[0..(from + 3 - from)])`
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error: it looks like you're manually copying between slices
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--> $DIR/for_loop.rs:512:14
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512 | for i in 0..src.len() {
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| ^^^^^^^^^^^^ help: try replacing the loop by: `dst[..src.len()].clone_from_slice(&src[..])`
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error: aborting due to 51 previous errors
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