rust/tests/ui/unsized-locals/issue-50940.stderr

error[E0277]: the size for values of type `str` cannot be known at compilation time
  --> $DIR/issue-50940.rs:3:5
   |
LL |     A as fn(str) -> A<str>;
   |     ^ doesn't have a size known at compile-time
   |
   = help: the trait `Sized` is not implemented for `str`
   = note: all function arguments must have a statically known size
   = help: unsized fn params are gated as an unstable feature

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.
Add tests verifying #50940. 2018-11-18 09:19:14 -06:00			error[E0277]: the size for values of type `str` cannot be known at compilation time
			`--> $DIR/issue-50940.rs:3:5`
			`\|`
			`LL \| A as fn(str) -> A<str>;`
			`\| ^ doesn't have a size known at compile-time`
			`\|`
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 `Sized` is not implemented for `str`
Add tests verifying #50940. 2018-11-18 09:19:14 -06:00			`= note: all function arguments must have a statically known size`
Add unsized_fn_params feature 2020-10-16 15:46:59 -05:00			`= help: unsized fn params are gated as an unstable feature`
Add tests verifying #50940. 2018-11-18 09:19:14 -06:00
			`error: aborting due to previous error`

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