mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-26 16:54:01 +00:00
b7fc1a7431
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.
15 lines
734 B
Plaintext
15 lines
734 B
Plaintext
error[E0277]: the trait bound `Struct: Trait<isize>` is not satisfied
|
|
--> $DIR/coercion-generic-bad.rs:16:36
|
|
|
|
|
LL | let s: Box<dyn Trait<isize>> = Box::new(Struct { person: "Fred" });
|
|
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `Trait<isize>` is not implemented for `Struct`
|
|
|
|
|
= help: the trait `Trait<isize>` is not implemented for `Struct`
|
|
but trait `Trait<&'static str>` is implemented for it
|
|
= help: for that trait implementation, expected `&'static str`, found `isize`
|
|
= note: required for the cast from `Box<Struct>` to `Box<dyn Trait<isize>>`
|
|
|
|
error: aborting due to 1 previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|