mirror of
https://github.com/rust-lang/rust
synced 2024-11-05 20:45:15 +00:00
6efddac288
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.
33 lines
1.3 KiB
Text
33 lines
1.3 KiB
Text
error[E0790]: cannot refer to the associated constant on trait without specifying the corresponding `impl` type
|
|
--> $DIR/issue-58022.rs:4:25
|
|
|
|
|
LL | const SIZE: usize;
|
|
| ------------------ `Foo::SIZE` defined here
|
|
LL |
|
|
LL | fn new(slice: &[u8; Foo::SIZE]) -> Self;
|
|
| ^^^^^^^^^ cannot refer to the associated constant of trait
|
|
|
|
error[E0277]: the size for values of type `[u8]` cannot be known at compilation time
|
|
--> $DIR/issue-58022.rs:13:41
|
|
|
|
|
LL | fn new(slice: &[u8; Self::SIZE]) -> Self {
|
|
| ^^^^ doesn't have a size known at compile-time
|
|
|
|
|
= help: within `Bar<[u8]>`, the trait `Sized` is not implemented for `[u8]`, which is required by `Bar<[u8]>: Sized`
|
|
note: required because it appears within the type `Bar<[u8]>`
|
|
--> $DIR/issue-58022.rs:8:12
|
|
|
|
|
LL | pub struct Bar<T: ?Sized>(T);
|
|
| ^^^
|
|
= note: the return type of a function must have a statically known size
|
|
|
|
error[E0423]: expected function, tuple struct or tuple variant, found trait `Foo`
|
|
--> $DIR/issue-58022.rs:15:9
|
|
|
|
|
LL | Foo(Box::new(*slice))
|
|
| ^^^ not a function, tuple struct or tuple variant
|
|
|
|
error: aborting due to 3 previous errors
|
|
|
|
Some errors have detailed explanations: E0277, E0423, E0790.
|
|
For more information about an error, try `rustc --explain E0277`.
|