07e7823c01
If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not.
16 lines
594 B
Plaintext
16 lines
594 B
Plaintext
error[E0277]: `Cell<i32>` cannot be shared between threads safely
|
|
--> $DIR/mutexguard-sync.rs:11:15
|
|
|
|
|
LL | fn test_sync<T: Sync>(_t: T) {}
|
|
| ---- required by this bound in `test_sync`
|
|
...
|
|
LL | test_sync(guard);
|
|
| ^^^^^ `Cell<i32>` cannot be shared between threads safely
|
|
|
|
|
= help: the trait `Sync` is not implemented for `Cell<i32>`
|
|
= note: required because of the requirements on the impl of `Sync` for `MutexGuard<'_, Cell<i32>>`
|
|
|
|
error: aborting due to previous error
|
|
|
|
For more information about this error, try `rustc --explain E0277`.
|