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.
11 lines
477 B
Text
11 lines
477 B
Text
error[E0277]: the trait bound `Box<dyn Foo>: Foo` is not satisfied
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--> $DIR/object-does-not-impl-trait.rs:6:44
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LL | fn take_foo<F:Foo>(f: F) {}
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| --- required by this bound in `take_foo`
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LL | fn take_object(f: Box<dyn Foo>) { take_foo(f); }
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| ^ the trait `Foo` is not implemented for `Box<dyn Foo>`
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0277`.
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