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rust/src/test/ui/specialization/issue-44861.stderr

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pretty: trim paths of unique symbols 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.
2020-09-02 02:40:56 -05:00
error[E0277]: the trait bound `(): CoerceUnsized<*const [u8]>` is not satisfied
Add test for issue-44861
2020-06-23 03:52:01 -05:00
--> $DIR/issue-44861.rs:21:5
|
LL | default type Data2 = ();
pretty: trim paths of unique symbols 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.
2020-09-02 02:40:56 -05:00
| ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `CoerceUnsized<*const [u8]>` is not implemented for `()`
Use note to point at bound introducing requirement
2021-07-31 11:26:55 -05:00
|
note: required by a bound in `Smartass::Data2`
--> $DIR/issue-44861.rs:12:17
|
LL | type Data2: CoerceUnsized<*const [u8]>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Smartass::Data2`
Add test for issue-44861
2020-06-23 03:52:01 -05:00
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.
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