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
768 B
Plaintext
16 lines
768 B
Plaintext
error[E0277]: the trait bound `for<'t> <Map<<&'t _ as IntoIterator>::IntoIter, _> as Iterator>::Item: Foo` is not satisfied
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--> $DIR/issue-60218.rs:18:5
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LL | pub fn trigger_error<I, F>(iterable: I, functor: F)
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| ------------- required by a bound in this
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...
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LL | for<'t> <Map<<&'t I as IntoIterator>::IntoIter, F> as Iterator>::Item: Foo,
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| --- required by this bound in `trigger_error`
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...
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LL | trigger_error(vec![], |x: &u32| x)
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| ^^^^^^^^^^^^^ the trait `for<'t> Foo` is not implemented for `<Map<<&'t _ as IntoIterator>::IntoIter, _> as Iterator>::Item`
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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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