rust/tests/ui/derives/derives-span-Debug-enum.stderr

error[E0277]: `Error` doesn't implement `Debug`
  --> $DIR/derives-span-Debug-enum.rs:9:6
   |
LL | #[derive(Debug)]
   |          ----- in this derive macro expansion
...
LL |      Error
   |      ^^^^^ `Error` cannot be formatted using `{:?}`
   |
   = help: the trait `Debug` is not implemented for `Error`
   = note: add `#[derive(Debug)]` to `Error` or manually `impl Debug for Error`
   = note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
help: consider annotating `Error` with `#[derive(Debug)]`
   |
LL + #[derive(Debug)]
LL | struct Error;
   |

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
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]: `Error` doesn't implement `Debug`
tests: remove ignore directives from tests that mention core/alloc/std spans. 2020-03-31 20:10:13 -05:00			`--> $DIR/derives-span-Debug-enum.rs:9:6`
Moved compile-fail tests to ui tests. 2018-08-08 07:28:26 -05:00			`\|`
Various diagnostics clean ups/tweaks * Always point at macros, including derive macros * Point at non-local items that introduce a trait requirement * On private associated item, point at definition 2021-07-17 13:13:50 -05:00			`LL \| #[derive(Debug)]`
			`\| ----- in this derive macro expansion`
			`...`
Update tests 2019-03-09 06:03:44 -06:00			`LL \| Error`
Moved compile-fail tests to ui tests. 2018-08-08 07:28:26 -05:00			\| ^^^^^ `Error` cannot be formatted using `{:?}`
			`\|`
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			= help: the trait `Debug` is not implemented for `Error`
Change Debug unimplemented message per request 2021-06-22 02:38:31 -05:00			= note: add `#[derive(Debug)]` to `Error` or manually `impl Debug for Error`
Show macro name in 'this error originates in macro' message When there are multiple macros in use, it can be difficult to tell which one was responsible for producing an error. 2021-02-13 13:52:25 -06:00			= note: this error originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
Suggest derivable trait on E0277 2022-03-31 09:58:45 -05:00			help: consider annotating `Error` with `#[derive(Debug)]`
			`\|`
Tweak output for 'add line' suggestion 2023-03-17 21:18:39 -05:00			`LL + #[derive(Debug)]`
			`LL \| struct Error;`
Suggest derivable trait on E0277 2022-03-31 09:58:45 -05:00			`\|`
Moved compile-fail tests to ui tests. 2018-08-08 07:28:26 -05:00
			`error: aborting due to previous error`

			For more information about this error, try `rustc --explain E0277`.