rust/tests/ui/integral-indexing.stderr
Esteban Küber 6efddac288 Provide more context on derived obligation error primary label
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:

```
error[E0277]: the trait bound `i32: Bar` is not satisfied
 --> f100.rs:6:6
  |
6 |     <i32 as Foo>::foo();
  |      ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
  |
help: this trait has no implementations, consider adding one
 --> f100.rs:2:1
  |
2 | trait Bar {}
  | ^^^^^^^^^
note: required for `i32` to implement `Foo`
 --> f100.rs:3:14
  |
3 | impl<T: Bar> Foo for T {}
  |         ---  ^^^     ^
  |         |
  |         unsatisfied trait bound introduced here
```

Fix #40120.
2024-01-30 21:28:18 +00:00

92 lines
4.1 KiB
Plaintext

error[E0277]: the type `[isize]` cannot be indexed by `u8`
--> $DIR/integral-indexing.rs:6:7
|
LL | v[3u8];
| ^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[isize]>` is not implemented for `u8`, which is required by `Vec<isize>: Index<_>`
= help: the trait `SliceIndex<[isize]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `u8`
= note: required for `Vec<isize>` to implement `Index<u8>`
error[E0277]: the type `[isize]` cannot be indexed by `i8`
--> $DIR/integral-indexing.rs:7:7
|
LL | v[3i8];
| ^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[isize]>` is not implemented for `i8`, which is required by `Vec<isize>: Index<_>`
= help: the trait `SliceIndex<[isize]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `i8`
= note: required for `Vec<isize>` to implement `Index<i8>`
error[E0277]: the type `[isize]` cannot be indexed by `u32`
--> $DIR/integral-indexing.rs:8:7
|
LL | v[3u32];
| ^^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[isize]>` is not implemented for `u32`, which is required by `Vec<isize>: Index<_>`
= help: the trait `SliceIndex<[isize]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `u32`
= note: required for `Vec<isize>` to implement `Index<u32>`
error[E0277]: the type `[isize]` cannot be indexed by `i32`
--> $DIR/integral-indexing.rs:9:7
|
LL | v[3i32];
| ^^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[isize]>` is not implemented for `i32`, which is required by `Vec<isize>: Index<_>`
= help: the trait `SliceIndex<[isize]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `i32`
= note: required for `Vec<isize>` to implement `Index<i32>`
error[E0277]: the type `[u8]` cannot be indexed by `u8`
--> $DIR/integral-indexing.rs:12:18
|
LL | s.as_bytes()[3u8];
| ^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[u8]>` is not implemented for `u8`, which is required by `[u8]: Index<_>`
= help: the trait `SliceIndex<[u8]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `u8`
= note: required for `[u8]` to implement `Index<u8>`
error[E0277]: the type `[u8]` cannot be indexed by `i8`
--> $DIR/integral-indexing.rs:13:18
|
LL | s.as_bytes()[3i8];
| ^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[u8]>` is not implemented for `i8`, which is required by `[u8]: Index<_>`
= help: the trait `SliceIndex<[u8]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `i8`
= note: required for `[u8]` to implement `Index<i8>`
error[E0277]: the type `[u8]` cannot be indexed by `u32`
--> $DIR/integral-indexing.rs:14:18
|
LL | s.as_bytes()[3u32];
| ^^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[u8]>` is not implemented for `u32`, which is required by `[u8]: Index<_>`
= help: the trait `SliceIndex<[u8]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `u32`
= note: required for `[u8]` to implement `Index<u32>`
error[E0277]: the type `[u8]` cannot be indexed by `i32`
--> $DIR/integral-indexing.rs:15:18
|
LL | s.as_bytes()[3i32];
| ^^^^ slice indices are of type `usize` or ranges of `usize`
|
= help: the trait `SliceIndex<[u8]>` is not implemented for `i32`, which is required by `[u8]: Index<_>`
= help: the trait `SliceIndex<[u8]>` is implemented for `usize`
= help: for that trait implementation, expected `usize`, found `i32`
= note: required for `[u8]` to implement `Index<i32>`
error: aborting due to 8 previous errors
For more information about this error, try `rustc --explain E0277`.