rust/tests/ui/underscore-lifetime/underscore-lifetime-binders.stderr
2024-03-20 17:29:58 +00:00

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error[E0106]: missing lifetime specifier
--> $DIR/underscore-lifetime-binders.rs:2:17
|
LL | struct Baz<'a>(&'_ &'a u8);
| ^^ expected named lifetime parameter
|
help: consider using the `'a` lifetime
|
LL | struct Baz<'a>(&'a &'a u8);
| ~~
error[E0637]: `'_` cannot be used here
--> $DIR/underscore-lifetime-binders.rs:4:8
|
LL | fn foo<'_>
| ^^ `'_` is a reserved lifetime name
error[E0637]: `'_` cannot be used here
--> $DIR/underscore-lifetime-binders.rs:10:25
|
LL | fn meh() -> Box<dyn for<'_> Meh<'_>>
| ^^ `'_` is a reserved lifetime name
error[E0106]: missing lifetime specifier
--> $DIR/underscore-lifetime-binders.rs:10:33
|
LL | fn meh() -> Box<dyn for<'_> Meh<'_>>
| ^^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from
help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static`, or if you will only have owned values
|
LL | fn meh() -> Box<dyn for<'_> Meh<'static>>
| ~~~~~~~
error[E0106]: missing lifetime specifier
--> $DIR/underscore-lifetime-binders.rs:16:35
|
LL | fn foo2(_: &'_ u8, y: &'_ u8) -> &'_ u8 { y }
| ------ ------ ^^ expected named lifetime parameter
|
= help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or `y`
help: consider introducing a named lifetime parameter
|
LL | fn foo2<'a>(_: &'a u8, y: &'a u8) -> &'a u8 { y }
| ++++ ~~ ~~ ~~
error: aborting due to 5 previous errors
Some errors have detailed explanations: E0106, E0637.
For more information about an error, try `rustc --explain E0106`.