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
748 B
Plaintext
16 lines
748 B
Plaintext
error[E0507]: cannot move out of `foo` in pattern guard
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--> $DIR/issue-27282-move-ref-mut-into-guard.rs:9:19
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LL | if { (|| { let bar = foo; bar.take() })(); false } => {},
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| ^^ ---
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| | |
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| | move occurs because `foo` has type `&mut Option<&i32>`, which does not implement the `Copy` trait
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| | move occurs due to use in closure
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| move out of `foo` occurs here
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= note: variables bound in patterns cannot be moved from until after the end of the pattern guard
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0507`.
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