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.
13 lines
588 B
Plaintext
13 lines
588 B
Plaintext
error[E0282]: type annotations needed for `(Sender<Foo<T>>, std::sync::mpsc::Receiver<Foo<T>>)`
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--> $DIR/issue-25368.rs:11:17
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LL | let (tx, rx) = channel();
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| -------- consider giving this pattern the explicit type `(Sender<Foo<T>>, std::sync::mpsc::Receiver<Foo<T>>)`, where the type parameter `T` is specified
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...
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LL | tx.send(Foo{ foo: PhantomData });
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| ^^^ cannot infer type for type parameter `T` declared on the struct `Foo`
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error: aborting due to previous error
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For more information about this error, try `rustc --explain E0282`.
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