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.
69 lines
2.3 KiB
Text
69 lines
2.3 KiB
Text
error[E0277]: `Cell<i32>` cannot be shared between threads safely
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--> $DIR/not-sync.rs:8:12
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LL | fn test<T: Sync>() {}
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| ---- required by this bound in `test`
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...
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LL | test::<Cell<i32>>();
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| ^^^^^^^^^ `Cell<i32>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `Cell<i32>`
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error[E0277]: `RefCell<i32>` cannot be shared between threads safely
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--> $DIR/not-sync.rs:10:12
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LL | fn test<T: Sync>() {}
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| ---- required by this bound in `test`
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...
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LL | test::<RefCell<i32>>();
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| ^^^^^^^^^^^^ `RefCell<i32>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `RefCell<i32>`
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error[E0277]: `Rc<i32>` cannot be shared between threads safely
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--> $DIR/not-sync.rs:13:12
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LL | fn test<T: Sync>() {}
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| ---- required by this bound in `test`
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...
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LL | test::<Rc<i32>>();
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| ^^^^^^^ `Rc<i32>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `Rc<i32>`
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error[E0277]: `std::rc::Weak<i32>` cannot be shared between threads safely
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--> $DIR/not-sync.rs:15:12
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LL | fn test<T: Sync>() {}
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| ---- required by this bound in `test`
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...
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LL | test::<Weak<i32>>();
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| ^^^^^^^^^ `std::rc::Weak<i32>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `std::rc::Weak<i32>`
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error[E0277]: `std::sync::mpsc::Receiver<i32>` cannot be shared between threads safely
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--> $DIR/not-sync.rs:18:12
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LL | fn test<T: Sync>() {}
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| ---- required by this bound in `test`
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...
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LL | test::<Receiver<i32>>();
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| ^^^^^^^^^^^^^ `std::sync::mpsc::Receiver<i32>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `std::sync::mpsc::Receiver<i32>`
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error[E0277]: `Sender<i32>` cannot be shared between threads safely
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--> $DIR/not-sync.rs:20:12
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LL | fn test<T: Sync>() {}
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| ---- required by this bound in `test`
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...
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LL | test::<Sender<i32>>();
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| ^^^^^^^^^^^ `Sender<i32>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `Sender<i32>`
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error: aborting due to 6 previous errors
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For more information about this error, try `rustc --explain E0277`.
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