rust/tests/ui/impl-trait/in-trait/missing-static-bound-from-impl.stderr

error[E0310]: the associated type `impl Fn()` may not live long enough
  --> $DIR/missing-static-bound-from-impl.rs:11:9
   |
LL |         Box::new(<T as Original>::f())
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |         |
   |         the associated type `impl Fn()` must be valid for the static lifetime...
   |         ...so that the type `impl Fn()` will meet its required lifetime bounds

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0310`.
Print RPITIT like an opaque 2024-02-27 10:11:35 -06:00			error[E0310]: the associated type `impl Fn()` may not live long enough
Account for RPITIT in E0310 explicit lifetime constraint suggestion When given ```rust trait Original { fn f() -> impl Fn(); } trait Erased { fn f(&self) -> Box<dyn Fn()>; } impl<T: Original> Erased for T { fn f(&self) -> Box<dyn Fn()> { Box::new(<T as Original>::f()) } } ``` avoid suggestion to restrict the `Trait::{opaque}` type in a `where` clause: ``` error[E0310]: the associated type `<T as Original>::{opaque#0}` may not live long enough --> $DIR/missing-static-bound-from-impl.rs:11:9 \| LL \| Box::new(<T as Original>::f()) \| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ \| \| \| the associated type `<T as Original>::{opaque#0}` must be valid for the static lifetime... \| ...so that the type `impl Fn()` will meet its required lifetime bounds ``` CC #119773. 2024-02-22 00:15:55 -06:00			`--> $DIR/missing-static-bound-from-impl.rs:11:9`
			`\|`
			`LL \| Box::new(<T as Original>::f())`
			`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
			`\| \|`
Print RPITIT like an opaque 2024-02-27 10:11:35 -06:00			\| the associated type `impl Fn()` must be valid for the static lifetime...
Account for RPITIT in E0310 explicit lifetime constraint suggestion When given ```rust trait Original { fn f() -> impl Fn(); } trait Erased { fn f(&self) -> Box<dyn Fn()>; } impl<T: Original> Erased for T { fn f(&self) -> Box<dyn Fn()> { Box::new(<T as Original>::f()) } } ``` avoid suggestion to restrict the `Trait::{opaque}` type in a `where` clause: ``` error[E0310]: the associated type `<T as Original>::{opaque#0}` may not live long enough --> $DIR/missing-static-bound-from-impl.rs:11:9 \| LL \| Box::new(<T as Original>::f()) \| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ \| \| \| the associated type `<T as Original>::{opaque#0}` must be valid for the static lifetime... \| ...so that the type `impl Fn()` will meet its required lifetime bounds ``` CC #119773. 2024-02-22 00:15:55 -06:00			\| ...so that the type `impl Fn()` will meet its required lifetime bounds

			`error: aborting due to 1 previous error`

			For more information about this error, try `rustc --explain E0310`.