rust-clippy/tests/ui/len_zero.stderr

error: item `PubOne` has a public `len` method but no corresponding `is_empty` method
  --> $DIR/len_zero.rs:6:1
   |
LL | / impl PubOne {
LL | |     pub fn len(self: &Self) -> isize {
LL | |         1
LL | |     }
LL | | }
   | |_^
   |
   = note: `-D clippy::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
   |
LL | / pub trait PubTraitsToo {
LL | |     fn len(self: &Self) -> isize;
LL | | }
   | |_^

error: item `HasIsEmpty` has a public `len` method but a private `is_empty` method
  --> $DIR/len_zero.rs:90:1
   |
LL | / impl HasIsEmpty {
LL | |     pub fn len(self: &Self) -> isize {
LL | |         1
LL | |     }
...  |
LL | |     }
LL | | }
   | |_^

error: item `HasWrongIsEmpty` has a public `len` method but no corresponding `is_empty` method
  --> $DIR/len_zero.rs:119:1
   |
LL | / impl HasWrongIsEmpty {
LL | |     pub fn len(self: &Self) -> isize {
LL | |         1
LL | |     }
...  |
LL | |     }
LL | | }
   | |_^

error: length comparison to zero
  --> $DIR/len_zero.rs:140:8
   |
LL |     if x.len() == 0 {
   |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `x.is_empty()`
   |
   = note: `-D clippy::len-zero` implied by `-D warnings`

error: length comparison to zero
  --> $DIR/len_zero.rs:144:8
   |
LL |     if "".len() == 0 {}
   |        ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `"".is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:159:8
   |
LL |     if has_is_empty.len() == 0 {
   |        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:162:8
   |
LL |     if has_is_empty.len() != 0 {
   |        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!has_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:165:8
   |
LL |     if has_is_empty.len() > 0 {
   |        ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!has_is_empty.is_empty()`

error: length comparison to one
  --> $DIR/len_zero.rs:168:8
   |
LL |     if has_is_empty.len() < 1 {
   |        ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()`

error: length comparison to one
  --> $DIR/len_zero.rs:171:8
   |
LL |     if has_is_empty.len() >= 1 {
   |        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!has_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:182:8
   |
LL |     if 0 == has_is_empty.len() {
   |        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:185:8
   |
LL |     if 0 != has_is_empty.len() {
   |        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!has_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:188:8
   |
LL |     if 0 < has_is_empty.len() {
   |        ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!has_is_empty.is_empty()`

error: length comparison to one
  --> $DIR/len_zero.rs:191:8
   |
LL |     if 1 <= has_is_empty.len() {
   |        ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!has_is_empty.is_empty()`

error: length comparison to one
  --> $DIR/len_zero.rs:194:8
   |
LL |     if 1 > has_is_empty.len() {
   |        ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:208:8
   |
LL |     if with_is_empty.len() == 0 {
   |        ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `with_is_empty.is_empty()`

error: length comparison to zero
  --> $DIR/len_zero.rs:221:8
   |
LL |     if b.len() != 0 {}
   |        ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `!b.is_empty()`

error: trait `DependsOnFoo` has a `len` method but no (possibly inherited) `is_empty` method
  --> $DIR/len_zero.rs:227:1
   |
LL | / pub trait DependsOnFoo: Foo {
LL | |     fn len(&mut self) -> usize;
LL | | }
   | |_^

error: aborting due to 19 previous errors