- Detect one element array of `Range` type, which is potentially a typo:
`for _ in [0..10] {}` where iterating between `0` and `10` was intended.
(#23141)
- Suggest `.bytes()` and `.chars()` for `String`.
- Suggest borrowing or `.iter()` on arrays (#36391)
- Suggest using range literal when iterating on integers (#34353)
- Do not suggest `.iter()` by default (#50773, #46806)
12 lines
500 B
Text
12 lines
500 B
Text
error[E0277]: `()` is not an iterator
|
|
--> $DIR/conservative_impl_trait.rs:13:33
|
|
|
|
|
LL | fn will_ice(something: &u32) -> impl Iterator<Item = &u32> {
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
|
|
|
|
|
= help: the trait `std::iter::Iterator` is not implemented for `()`
|
|
= note: the return type of a function must have a statically known size
|
|
|
|
error: aborting due to previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|