rust/src/test/ui/issues/issue-32709.stderr

error[E0277]: `?` couldn't convert the error to `()`
  --> $DIR/issue-32709.rs:4:11
   |
LL | fn a() -> Result<i32, ()> {
   |           --------------- expected `()` because of this
LL |     Err(5)?;
   |           ^ the trait `From<{integer}>` is not implemented for `()`
   |
   = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
   = help: the trait `FromResidual<Result<Infallible, E>>` is implemented for `Result<T, F>`
   = note: required because of the requirements on the impl of `FromResidual<Result<Infallible, {integer}>>` for `Result<i32, ()>`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
Give custom error for E0277 on `?` error case 2019-04-17 21:50:50 -05:00			error[E0277]: `?` couldn't convert the error to `()`
Point at try `?` on errors affecting the err match arm of the desugared code 2019-04-17 20:30:26 -05:00			`--> $DIR/issue-32709.rs:4:11`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00			`\|`
Point at the return type on `.into()` failure caused by `?` Fix #35946. 2020-04-21 19:20:12 -05:00			`LL \| fn a() -> Result<i32, ()> {`
			\| --------------- expected `()` because of this
Update tests 2019-03-09 06:03:44 -06:00			`LL \| Err(5)?;`
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 `From<{integer}>` is not implemented for `()`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00			`\|`
Explain that ? converts the error type using From 2019-05-17 14:18:56 -05:00			= note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
Fix #90970, doesn't address #87437 2022-03-26 16:26:02 -05:00			= help: the trait `FromResidual<Result<Infallible, E>>` is implemented for `Result<T, F>`
Better rustc_on_unimplemented, and UI test fixes 2021-04-17 13:56:07 -05:00			= note: required because of the requirements on the impl of `FromResidual<Result<Infallible, {integer}>>` for `Result<i32, ()>`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00
			`error: aborting due to previous error`

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