mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 09:14:20 +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.
48 lines
2.2 KiB
Plaintext
48 lines
2.2 KiB
Plaintext
error[E0277]: the type `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
|
|
--> $DIR/not-panic-safe-4.rs:9:14
|
|
|
|
|
LL | assert::<&RefCell<i32>>();
|
|
| ^^^^^^^^^^^^^ `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
|
|
|
|
|
= help: within `RefCell<i32>`, the trait `RefUnwindSafe` is not implemented for `UnsafeCell<i32>`, which is required by `&RefCell<i32>: UnwindSafe`
|
|
note: required because it appears within the type `RefCell<i32>`
|
|
--> $SRC_DIR/core/src/cell.rs:LL:COL
|
|
= note: required for `&RefCell<i32>` to implement `UnwindSafe`
|
|
note: required by a bound in `assert`
|
|
--> $DIR/not-panic-safe-4.rs:6:14
|
|
|
|
|
LL | fn assert<T: UnwindSafe + ?Sized>() {}
|
|
| ^^^^^^^^^^ required by this bound in `assert`
|
|
help: consider removing the leading `&`-reference
|
|
|
|
|
LL - assert::<&RefCell<i32>>();
|
|
LL + assert::<RefCell<i32>>();
|
|
|
|
|
|
|
error[E0277]: the type `UnsafeCell<isize>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
|
|
--> $DIR/not-panic-safe-4.rs:9:14
|
|
|
|
|
LL | assert::<&RefCell<i32>>();
|
|
| ^^^^^^^^^^^^^ `UnsafeCell<isize>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
|
|
|
|
|
= help: within `RefCell<i32>`, the trait `RefUnwindSafe` is not implemented for `UnsafeCell<isize>`, which is required by `&RefCell<i32>: UnwindSafe`
|
|
note: required because it appears within the type `Cell<isize>`
|
|
--> $SRC_DIR/core/src/cell.rs:LL:COL
|
|
note: required because it appears within the type `RefCell<i32>`
|
|
--> $SRC_DIR/core/src/cell.rs:LL:COL
|
|
= note: required for `&RefCell<i32>` to implement `UnwindSafe`
|
|
note: required by a bound in `assert`
|
|
--> $DIR/not-panic-safe-4.rs:6:14
|
|
|
|
|
LL | fn assert<T: UnwindSafe + ?Sized>() {}
|
|
| ^^^^^^^^^^ required by this bound in `assert`
|
|
help: consider removing the leading `&`-reference
|
|
|
|
|
LL - assert::<&RefCell<i32>>();
|
|
LL + assert::<RefCell<i32>>();
|
|
|
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|