rust/tests/ui/async-await/issue-72442.stderr

error[E0277]: the trait bound `Option<&str>: AsRef<Path>` is not satisfied
  --> $DIR/issue-72442.rs:12:36
   |
LL |             let mut f = File::open(path.to_str())?;
   |                         ---------- ^^^^^^^^^^^^^ the trait `AsRef<Path>` is not implemented for `Option<&str>`
   |                         |
   |                         required by a bound introduced by this call
   |
note: required by a bound in `File::open`
  --> $SRC_DIR/std/src/fs.rs:LL:COL
help: consider removing this method call, as the receiver has type `&Path` and `&Path: AsRef<Path>` trivially holds
   |
LL -             let mut f = File::open(path.to_str())?;
LL +             let mut f = File::open(path)?;
   |

error: aborting due to 1 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 07:40:56 +00:00			error[E0277]: the trait bound `Option<&str>: AsRef<Path>` is not satisfied
bless issue-72442 2020-05-22 02:12:03 +00:00			`--> $DIR/issue-72442.rs:12:36`
			`\|`
			`LL \| let mut f = File::open(path.to_str())?;`
Point at call span that introduced obligation for the arg 2021-09-07 11:30:53 +00:00			\| ---------- ^^^^^^^^^^^^^ the trait `AsRef<Path>` is not implemented for `Option<&str>`
			`\| \|`
			`\| required by a bound introduced by this call`
Remove trailing whitespace from error messages 2021-06-10 11:52:00 +00:00			`\|`
Use note to point at bound introducing requirement 2021-07-31 16:26:55 +00:00			note: required by a bound in `File::open`
			`--> $SRC_DIR/std/src/fs.rs:LL:COL`
Detect when method call on argument could be removed to fulfill failed trait bound When encountering ```rust struct Foo; struct Bar; impl From<Bar> for Foo { fn from(_: Bar) -> Self { Foo } } fn qux(_: impl From<Bar>) {} fn main() { qux(Bar.into()); } ``` Suggest removing `.into()`: ``` error[E0283]: type annotations needed --> f100.rs:8:13 \| 8 \| qux(Bar.into()); \| --- ^^^^ \| \| \| required by a bound introduced by this call \| = note: cannot satisfy `_: From<Bar>` note: required by a bound in `qux` --> f100.rs:6:16 \| 6 \| fn qux(_: impl From<Bar>) {} \| ^^^^^^^^^ required by this bound in `qux` help: try using a fully qualified path to specify the expected types \| 8 \| qux(<Bar as Into<T>>::into(Bar)); \| +++++++++++++++++++++++ ~ help: consider removing this method call, as the receiver has type `Bar` and `Bar: From<Bar>` can be fulfilled \| 8 - qux(Bar.into()); 8 + qux(Bar); \| ``` Fix #71252 2024-02-14 17:48:40 +00:00			help: consider removing this method call, as the receiver has type `&Path` and `&Path: AsRef<Path>` trivially holds
			`\|`
			`LL - let mut f = File::open(path.to_str())?;`
			`LL + let mut f = File::open(path)?;`
			`\|`
bless issue-72442 2020-05-22 02:12:03 +00:00
Show number in error message even for one error Co-authored-by: Adrian <adrian.iosdev@gmail.com> 2023-11-21 15:44:16 +00:00			`error: aborting due to 1 previous error`
bless issue-72442 2020-05-22 02:12:03 +00:00
			For more information about this error, try `rustc --explain E0277`.