mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-24 03:53:20 +00:00
e7a6b3e613
I have added test cases for comparisons with zero and one. While implementing handling of one, incorrect handlings of zero were also fixed. fixes rust-lang-nursery/rust-clippy/#2554
140 lines
4.2 KiB
Text
140 lines
4.2 KiB
Text
error: item `PubOne` has a public `len` method but no corresponding `is_empty` method
|
|
--> $DIR/len_zero.rs:6:1
|
|
|
|
|
6 | / impl PubOne {
|
|
7 | | pub fn len(self: &Self) -> isize {
|
|
8 | | 1
|
|
9 | | }
|
|
10 | | }
|
|
| |_^
|
|
|
|
|
= note: `-D len-without-is-empty` implied by `-D warnings`
|
|
|
|
error: trait `PubTraitsToo` has a `len` method but no (possibly inherited) `is_empty` method
|
|
--> $DIR/len_zero.rs:55:1
|
|
|
|
|
55 | / pub trait PubTraitsToo {
|
|
56 | | fn len(self: &Self) -> isize;
|
|
57 | | }
|
|
| |_^
|
|
|
|
error: item `HasIsEmpty` has a public `len` method but a private `is_empty` method
|
|
--> $DIR/len_zero.rs:89:1
|
|
|
|
|
89 | / impl HasIsEmpty {
|
|
90 | | pub fn len(self: &Self) -> isize {
|
|
91 | | 1
|
|
92 | | }
|
|
... |
|
|
96 | | }
|
|
97 | | }
|
|
| |_^
|
|
|
|
error: item `HasWrongIsEmpty` has a public `len` method but no corresponding `is_empty` method
|
|
--> $DIR/len_zero.rs:118:1
|
|
|
|
|
118 | / impl HasWrongIsEmpty {
|
|
119 | | pub fn len(self: &Self) -> isize {
|
|
120 | | 1
|
|
121 | | }
|
|
... |
|
|
125 | | }
|
|
126 | | }
|
|
| |_^
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:139:8
|
|
|
|
|
139 | if x.len() == 0 {
|
|
| ^^^^^^^^^^^^ help: using `is_empty` is more concise: `x.is_empty()`
|
|
|
|
|
= note: `-D len-zero` implied by `-D warnings`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:143:8
|
|
|
|
|
143 | if "".len() == 0 {}
|
|
| ^^^^^^^^^^^^^ help: using `is_empty` is more concise: `"".is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:158:8
|
|
|
|
|
158 | if has_is_empty.len() == 0 {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `has_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:161:8
|
|
|
|
|
161 | if has_is_empty.len() != 0 {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `!has_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:164:8
|
|
|
|
|
164 | if has_is_empty.len() > 0 {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `!has_is_empty.is_empty()`
|
|
|
|
error: length comparison to one
|
|
--> $DIR/len_zero.rs:167:8
|
|
|
|
|
167 | if has_is_empty.len() < 1 {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `has_is_empty.is_empty()`
|
|
|
|
error: length comparison to one
|
|
--> $DIR/len_zero.rs:170:8
|
|
|
|
|
170 | if has_is_empty.len() >= 1 {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `!has_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:181:8
|
|
|
|
|
181 | if 0 == has_is_empty.len() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `has_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:184:8
|
|
|
|
|
184 | if 0 != has_is_empty.len() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `!has_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:187:8
|
|
|
|
|
187 | if 0 < has_is_empty.len() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `!has_is_empty.is_empty()`
|
|
|
|
error: length comparison to one
|
|
--> $DIR/len_zero.rs:190:8
|
|
|
|
|
190 | if 1 <= has_is_empty.len() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `!has_is_empty.is_empty()`
|
|
|
|
error: length comparison to one
|
|
--> $DIR/len_zero.rs:193:8
|
|
|
|
|
193 | if 1 > has_is_empty.len() {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `has_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:207:8
|
|
|
|
|
207 | if with_is_empty.len() == 0 {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is more concise: `with_is_empty.is_empty()`
|
|
|
|
error: length comparison to zero
|
|
--> $DIR/len_zero.rs:220:8
|
|
|
|
|
220 | if b.len() != 0 {}
|
|
| ^^^^^^^^^^^^ help: using `is_empty` is more concise: `!b.is_empty()`
|
|
|
|
error: trait `DependsOnFoo` has a `len` method but no (possibly inherited) `is_empty` method
|
|
--> $DIR/len_zero.rs:226:1
|
|
|
|
|
226 | / pub trait DependsOnFoo: Foo {
|
|
227 | | fn len(&mut self) -> usize;
|
|
228 | | }
|
|
| |_^
|
|
|
|
error: aborting due to 19 previous errors
|
|
|