rust/tests/ui/issues/issue-24446.stderr

error[E0277]: the size for values of type `(dyn Fn() -> u32 + 'static)` cannot be known at compilation time
  --> $DIR/issue-24446.rs:2:17
   |
LL |     static foo: dyn Fn() -> u32 = || -> u32 {
   |                 ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
   |
   = help: the trait `Sized` is not implemented for `(dyn Fn() -> u32 + 'static)`

error[E0277]: `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
  --> $DIR/issue-24446.rs:2:17
   |
LL |     static foo: dyn Fn() -> u32 = || -> u32 {
   |                 ^^^^^^^^^^^^^^^ `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
   |
   = help: the trait `Sync` is not implemented for `(dyn Fn() -> u32 + 'static)`
   = note: consider using `std::sync::Arc<(dyn Fn() -> u32 + 'static)>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
   = note: shared static variables must have a type that implements `Sync`

error: aborting due to 2 previous errors

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]: the size for values of type `(dyn Fn() -> u32 + 'static)` cannot be known at compilation time
Remove licenses 2018-12-25 09:56:47 -06:00			`--> $DIR/issue-24446.rs:2:17`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00			`\|`
Update ui test suite to use dyn 2019-05-28 13:46:13 -05:00			`LL \| static foo: dyn Fn() -> u32 = \|\| -> u32 {`
			`\| ^^^^^^^^^^^^^^^ doesn't have a size known at compile-time`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00			`\|`
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 `(dyn Fn() -> u32 + 'static)`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00
Perform Sync check on static items in wf-check instead of during const checks 2021-11-26 08:11:45 -06:00			error[E0277]: `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
			`--> $DIR/issue-24446.rs:2:17`
			`\|`
			`LL \| static foo: dyn Fn() -> u32 = \|\| -> u32 {`
			\| ^^^^^^^^^^^^^^^ `(dyn Fn() -> u32 + 'static)` cannot be shared between threads safely
			`\|`
			= help: the trait `Sync` is not implemented for `(dyn Fn() -> u32 + 'static)`
Suggest using `Arc` on `!Send`/`!Sync` types 2021-09-14 10:44:08 -05:00			= note: consider using `std::sync::Arc<(dyn Fn() -> u32 + 'static)>`; for more information visit <https://doc.rust-lang.org/book/ch16-03-shared-state.html>
Perform Sync check on static items in wf-check instead of during const checks 2021-11-26 08:11:45 -06:00			= note: shared static variables must have a type that implements `Sync`

			`error: aborting due to 2 previous errors`
Move some `compile-fail` tests to `ui` 2018-07-15 16:11:54 -05:00
Check the type of statics and constants for `Sized`ness 2018-10-11 11:02:00 -05:00			For more information about this error, try `rustc --explain E0277`.