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rust/tests/ui/wf/wf-in-fn-where-clause.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 15:40:56 +08:00
error[E0277]: the trait bound `U: Copy` is not satisfied
Use more accurate failed predicate spans
2020-01-30 08:55:37 +08:00
--> $DIR/wf-in-fn-where-clause.rs:10:14
Moved compile-fail tests to ui tests.
2018-08-08 20:28:26 +08:00
|
Point at arguments or output when fn obligations come from them, or ident when they don't
2020-01-19 06:57:56 +08:00
LL | where T: MustBeCopy<U>
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 15:40:56 +08:00
| ^^^^^^^^^^^^^ the trait `Copy` is not implemented for `U`
Improve reporting errors and suggestions for trait bounds
2019-12-26 20:43:33 +08:00
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Use note to point at bound introducing requirement
2021-08-01 00:26:55 +08:00
note: required by a bound in `MustBeCopy`
--> $DIR/wf-in-fn-where-clause.rs:6:20
|
LL | trait MustBeCopy<T:Copy> {
| ^^^^ required by this bound in `MustBeCopy`
Tweak `suggest_constraining_type_param` Some of the bound restriction structured suggestions were incorrect while others had subpar output.
2020-03-14 10:28:14 +08:00
help: consider further restricting type parameter `U`
Improve reporting errors and suggestions for trait bounds
2019-12-26 20:43:33 +08:00
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give full path of constraint in suggest_constraining_type_param revert file bless with nll mode
2021-03-30 17:56:39 +08:00
LL | where T: MustBeCopy<U>, U: std::marker::Copy
Modify structured suggestion output * On suggestions that include deletions, use a diff inspired output format * When suggesting addition, use `+` as underline * Color highlight modified span
2021-06-22 10:07:19 +08:00
| ++++++++++++++++++++++
Moved compile-fail tests to ui tests.
2018-08-08 20:28:26 +08:00
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.