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.
39 lines
1.2 KiB
Plaintext
39 lines
1.2 KiB
Plaintext
error[E0382]: use of moved value: `x`
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--> $DIR/ref-suggestion.rs:4:5
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LL | let x = vec![1];
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| - move occurs because `x` has type `Vec<i32>`, which does not implement the `Copy` trait
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LL | let y = x;
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| - value moved here
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LL | x;
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| ^ value used here after move
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error[E0382]: use of moved value: `x`
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--> $DIR/ref-suggestion.rs:8:5
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LL | let x = vec![1];
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| - move occurs because `x` has type `Vec<i32>`, which does not implement the `Copy` trait
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LL | let mut y = x;
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| - value moved here
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LL | x;
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| ^ value used here after move
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error[E0382]: use of partially moved value: `x`
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--> $DIR/ref-suggestion.rs:16:5
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LL | (Some(y), ()) => {},
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| - value partially moved here
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...
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LL | x;
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| ^ value used here after partial move
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= note: partial move occurs because value has type `Vec<i32>`, which does not implement the `Copy` trait
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help: borrow this field in the pattern to avoid moving `x.0.0`
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LL | (Some(ref y), ()) => {},
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| ^^^
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0382`.
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