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rust-clippy/tests/ui/for_loop.stderr
Luis de Bethencourt 6d2329f2cb clean tests/ui/for_loop.rs 
Cleaning the empty lines for clarity.
2017-05-11 16:22:32 +01:00

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error: for loop over `option`, which is an `Option`. This is more readably written as an `if let` statement.
--> $DIR/for_loop.rs:17:14
|
17 | for x in option {
| ^^^^^^
|
= note: #[deny(for_loop_over_option)] implied by #[deny(clippy)]
note: lint level defined here
--> $DIR/for_loop.rs:10:8
|
10 | #[deny(clippy)]
| ^^^^^^
= 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:22:14
|
22 | for x in result {
| ^^^^^^
|
= note: #[deny(for_loop_over_result)] implied by #[deny(clippy)]
note: lint level defined here
--> $DIR/for_loop.rs:10:8
|
10 | #[deny(clippy)]
| ^^^^^^
= 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:26:14
|
26 | for x in option.ok_or("x not found") {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: #[deny(for_loop_over_result)] implied by #[deny(clippy)]
= 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:31:5
|
31 | / for x in v.iter().next() {
32 | | println!("{}", x);
33 | | }
| |_____^
|
= note: #[deny(iter_next_loop)] implied by #[deny(clippy)]
note: lint level defined here
--> $DIR/for_loop.rs:10:8
|
10 | #[deny(clippy)]
| ^^^^^^
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:36:14
|
36 | for x in v.iter().next().and(Some(0)) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: #[deny(for_loop_over_option)] implied by #[deny(clippy)]
= 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:40:14
|
40 | for x in v.iter().next().ok_or("x not found") {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: #[deny(for_loop_over_result)] implied by #[deny(clippy)]
= 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: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:84:5
|
84 | / for i in 0..vec.len() {
85 | | println!("{}", vec[i]);
86 | | }
| |_____^
|
note: lint level defined here
--> $DIR/for_loop.rs:75:8
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^^^^^^^^^^
help: consider using an iterator
| for <item> in &vec {
warning: unused variable: `i`
--> $DIR/for_loop.rs:88:9
|
88 | for i in 0..vec.len() {
| ^
|
= note: #[warn(unused_variables)] on by default
error: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:93:5
|
93 | for i in 0..vec.len() { let _ = vec[i]; }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
help: consider using an iterator
| for <item> in &vec { let _ = vec[i]; }
error: the loop variable `j` is only used to index `STATIC`.
--> $DIR/for_loop.rs:96:5
|
96 | / for j in 0..4 {
97 | | println!("{:?}", STATIC[j]);
98 | | }
| |_____^
|
help: consider using an iterator
| for <item> in STATIC.iter().take(4) {
error: the loop variable `j` is only used to index `CONST`.
--> $DIR/for_loop.rs:100:5
|
100 | / for j in 0..4 {
101 | | println!("{:?}", CONST[j]);
102 | | }
| |_____^
|
help: consider using an iterator
| for <item> in CONST.iter().take(4) {
error: the loop variable `i` is used to index `vec`
--> $DIR/for_loop.rs:104:5
|
104 | / for i in 0..vec.len() {
105 | | println!("{} {}", vec[i], i);
106 | | }
| |_____^
|
help: consider using an iterator
| for (i, <item>) in vec.iter().enumerate() {
error: the loop variable `i` is only used to index `vec2`.
--> $DIR/for_loop.rs:111:5
|
111 | / for i in 0..vec.len() {
112 | | println!("{}", vec2[i]);
113 | | }
| |_____^
|
help: consider using an iterator
| for <item> in vec2.iter().take(vec.len()) {
error: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:115:5
|
115 | / for i in 5..vec.len() {
116 | | println!("{}", vec[i]);
117 | | }
| |_____^
|
help: consider using an iterator
| for <item> in vec.iter().skip(5) {
error: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:119:5
|
119 | / for i in 0..MAX_LEN {
120 | | println!("{}", vec[i]);
121 | | }
| |_____^
|
help: consider using an iterator
| for <item> in vec.iter().take(MAX_LEN) {
error: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:123:5
|
123 | / for i in 0...MAX_LEN {
124 | | println!("{}", vec[i]);
125 | | }
| |_____^
|
help: consider using an iterator
| for <item> in vec.iter().take(MAX_LEN + 1) {
error: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:127:5
|
127 | / for i in 5..10 {
128 | | println!("{}", vec[i]);
129 | | }
| |_____^
|
help: consider using an iterator
| for <item> in vec.iter().take(10).skip(5) {
error: the loop variable `i` is only used to index `vec`.
--> $DIR/for_loop.rs:131:5
|
131 | / for i in 5...10 {
132 | | println!("{}", vec[i]);
133 | | }
| |_____^
|
help: consider using an iterator
| for <item> in vec.iter().take(10 + 1).skip(5) {
error: the loop variable `i` is used to index `vec`
--> $DIR/for_loop.rs:135:5
|
135 | / for i in 5..vec.len() {
136 | | println!("{} {}", vec[i], i);
137 | | }
| |_____^
|
help: consider using an iterator
| for (i, <item>) in vec.iter().enumerate().skip(5) {
error: the loop variable `i` is used to index `vec`
--> $DIR/for_loop.rs:139:5
|
139 | / for i in 5..10 {
140 | | println!("{} {}", vec[i], i);
141 | | }
| |_____^
|
help: consider using an iterator
| 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:143:5
|
143 | / for i in 10..0 {
144 | | println!("{}", i);
145 | | }
| |_____^
|
note: lint level defined here
--> $DIR/for_loop.rs:75:90
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^^^^^^^^^
help: consider using the following if you are attempting to iterate over this range in reverse
| for i in (0..10).rev() {
error: this range is empty so this for loop will never run
--> $DIR/for_loop.rs:147:5
|
147 | / for i in 10...0 {
148 | | println!("{}", i);
149 | | }
| |_____^
|
help: consider using the following if you are attempting to iterate over this range in reverse
| for i in (0...10).rev() {
error: this range is empty so this for loop will never run
--> $DIR/for_loop.rs:151:5
|
151 | / for i in MAX_LEN..0 {
152 | | println!("{}", i);
153 | | }
| |_____^
|
help: consider using the following if you are attempting to iterate over this range in reverse
| for i in (0..MAX_LEN).rev() {
error: this range is empty so this for loop will never run
--> $DIR/for_loop.rs:155:5
|
155 | / for i in 5..5 {
156 | | println!("{}", i);
157 | | }
| |_____^
error: this range is empty so this for loop will never run
--> $DIR/for_loop.rs:176:5
|
176 | / for i in 10..5+4 {
177 | | println!("{}", i);
178 | | }
| |_____^
|
help: consider using the following if you are attempting to iterate over this range in reverse
| for i in (5+4..10).rev() {
error: this range is empty so this for loop will never run
--> $DIR/for_loop.rs:180:5
|
180 | / for i in (5+2)..(3-1) {
181 | | println!("{}", i);
182 | | }
| |_____^
|
help: consider using the following if you are attempting to iterate over this range in reverse
| for i in ((3-1)..(5+2)).rev() {
error: this range is empty so this for loop will never run
--> $DIR/for_loop.rs:184:5
|
184 | / for i in (5+2)..(8-1) {
185 | | println!("{}", i);
186 | | }
| |_____^
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:207:15
|
207 | for _v in vec.iter() { }
| ^^^^^^^^^^ help: to write this more concisely, try `&vec`
|
note: lint level defined here
--> $DIR/for_loop.rs:75:29
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^^^^^^^^^
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:209:15
|
209 | for _v in vec.iter_mut() { }
| ^^^^^^^^^^^^^^ help: to write this more concisely, try `&mut vec`
error: it is more idiomatic to loop over containers instead of using explicit iteration methods`
--> $DIR/for_loop.rs:212:15
|
212 | for _v in out_vec.into_iter() { }
| ^^^^^^^^^^^^^^^^^^^ help: to write this more concisely, try `out_vec`
|
note: lint level defined here
--> $DIR/for_loop.rs:75:49
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^^^^^^^^^^^^^^
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:215:15
|
215 | for _v in array.into_iter() {}
| ^^^^^^^^^^^^^^^^^ help: to write this more concisely, try `&array`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:220:15
|
220 | for _v in [1, 2, 3].iter() { }
| ^^^^^^^^^^^^^^^^ help: to write this more concisely, try `&[1, 2, 3]`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:224:15
|
224 | for _v in [0; 32].iter() {}
| ^^^^^^^^^^^^^^ help: to write this more concisely, try `&[0; 32]`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:229:15
|
229 | for _v in ll.iter() { }
| ^^^^^^^^^ help: to write this more concisely, try `&ll`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:232:15
|
232 | for _v in vd.iter() { }
| ^^^^^^^^^ help: to write this more concisely, try `&vd`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:235:15
|
235 | for _v in bh.iter() { }
| ^^^^^^^^^ help: to write this more concisely, try `&bh`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:238:15
|
238 | for _v in hm.iter() { }
| ^^^^^^^^^ help: to write this more concisely, try `&hm`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:241:15
|
241 | for _v in bt.iter() { }
| ^^^^^^^^^ help: to write this more concisely, try `&bt`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:244:15
|
244 | for _v in hs.iter() { }
| ^^^^^^^^^ help: to write this more concisely, try `&hs`
error: it is more idiomatic to loop over references to containers instead of using explicit iteration methods
--> $DIR/for_loop.rs:247:15
|
247 | 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:249:5
|
249 | for _v in vec.iter().next() { }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: lint level defined here
--> $DIR/for_loop.rs:75:74
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^^^^^
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:256:5
|
256 | vec.iter().map(|x| out.push(x)).collect::<Vec<_>>();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: lint level defined here
--> $DIR/for_loop.rs:76:8
|
76 | #[deny(unused_collect)]
| ^^^^^^^^^^^^^^
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:261:5
|
261 | for _v in &vec { _index += 1 }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: lint level defined here
--> $DIR/for_loop.rs:75:110
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^^^^^^^^^^^^
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:265:5
|
265 | for _v in &vec { _index += 1 }
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: you seem to want to iterate on a map's values
--> $DIR/for_loop.rs:325:5
|
325 | / for (_, v) in &m {
326 | | let _v = v;
327 | | }
| |_____^
|
note: lint level defined here
--> $DIR/for_loop.rs:75:133
|
75 | #[deny(needless_range_loop, explicit_iter_loop, explicit_into_iter_loop, iter_next_loop, reverse_range_loop, explicit_counter_loop, for_kv_map)]
| ^^^^^^^^^^
help: use the corresponding method
| for v in m.values() {
error: you seem to want to iterate on a map's values
--> $DIR/for_loop.rs:330:5
|
330 | / for (_, v) in &*m {
331 | | let _v = v;
332 | | // Here the `*` is not actually necesarry, but the test tests that we don't suggest
333 | | // `in *m.values()` as we used to
334 | | }
| |_____^
|
help: use the corresponding method
| for v in (*m).values() {
error: you seem to want to iterate on a map's values
--> $DIR/for_loop.rs:337:5
|
337 | / for (_, v) in &mut m {
338 | | let _v = v;
339 | | }
| |_____^
|
help: use the corresponding method
| for v in m.values_mut() {
error: you seem to want to iterate on a map's values
--> $DIR/for_loop.rs:342:5
|
342 | / for (_, v) in &mut *m {
343 | | let _v = v;
344 | | }
| |_____^
|
help: use the corresponding method
| for v in (*m).values_mut() {
error: you seem to want to iterate on a map's keys
--> $DIR/for_loop.rs:348:5
|
348 | / for (k, _value) in rm {
349 | | let _k = k;
350 | | }
| |_____^
|
help: use the corresponding method
| for k in rm.keys() {
error: aborting due to 48 previous errors
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