rust/tests/ui/const-generics/occurs-check/unused-substs-1.stderr
Esteban Küber b7fc1a7431 Add trait diff highlighting logic and use it in E0277
When a trait is not implemented for a type, but there *is* an `impl`
for another type or different trait params, we format the output to
use highlighting in the same way that E0308 does for types.

The logic accounts for 3 cases:
- When both the type and trait in the expected predicate and the candidate are different
- When only the types are different
- When only the trait generic params are different

For each case, we use slightly different formatting and wording.
2024-11-02 03:08:04 +00:00

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error[E0277]: the trait bound `A<_>: Bar<_>` is not satisfied
--> $DIR/unused-substs-1.rs:12:13
|
LL | let _ = A;
| ^ the trait `Bar<_>` is not implemented for `A<_>`
|
= help: the trait `Bar<_>` is not implemented for `A<_>`
but it is implemented for `A<{ 6 + 1 }>`
note: required by a bound in `A`
--> $DIR/unused-substs-1.rs:9:11
|
LL | struct A<const N: usize>
| - required by a bound in this unit struct
LL | where
LL | A<N>: Bar<N>;
| ^^^^^^ required by this bound in `A`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.