mirror of https://github.com/rust-lang/rust
129 lines
4.5 KiB
Plaintext
129 lines
4.5 KiB
Plaintext
note: external requirements
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--> $DIR/projection-no-regions-closure.rs:25:23
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LL | with_signature(x, |mut y| Box::new(y.next()))
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| ^^^^^^^
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= note: defining type: no_region::<'?1, T>::{closure#0} with closure args [
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i32,
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extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '?2)>,
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(),
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]
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= note: number of external vids: 3
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= note: where <T as std::iter::Iterator>::Item: '?2
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note: no external requirements
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--> $DIR/projection-no-regions-closure.rs:21:1
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LL | / fn no_region<'a, T>(x: Box<T>) -> Box<dyn Anything + 'a>
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LL | | where
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LL | | T: Iterator,
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| |________________^
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= note: defining type: no_region::<'?1, T>
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error[E0309]: the associated type `<T as Iterator>::Item` may not live long enough
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--> $DIR/projection-no-regions-closure.rs:25:31
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LL | fn no_region<'a, T>(x: Box<T>) -> Box<dyn Anything + 'a>
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| -- the associated type `<T as Iterator>::Item` must be valid for the lifetime `'a` as defined here...
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...
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LL | with_signature(x, |mut y| Box::new(y.next()))
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| ^^^^^^^^^^^^^^^^^^ ...so that the type `<T as Iterator>::Item` will meet its required lifetime bounds
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help: consider adding an explicit lifetime bound
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LL | T: Iterator, <T as Iterator>::Item: 'a
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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note: external requirements
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--> $DIR/projection-no-regions-closure.rs:34:23
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LL | with_signature(x, |mut y| Box::new(y.next()))
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| ^^^^^^^
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= note: defining type: correct_region::<'?1, T>::{closure#0} with closure args [
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i32,
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extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '?2)>,
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(),
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]
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= note: number of external vids: 3
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= note: where <T as std::iter::Iterator>::Item: '?2
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note: no external requirements
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--> $DIR/projection-no-regions-closure.rs:30:1
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LL | / fn correct_region<'a, T>(x: Box<T>) -> Box<dyn Anything + 'a>
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LL | | where
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LL | | T: 'a + Iterator,
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| |_____________________^
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= note: defining type: correct_region::<'?1, T>
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note: external requirements
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--> $DIR/projection-no-regions-closure.rs:42:23
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LL | with_signature(x, |mut y| Box::new(y.next()))
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| ^^^^^^^
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= note: defining type: wrong_region::<'?1, '?2, T>::{closure#0} with closure args [
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i32,
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extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '?3)>,
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(),
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]
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= note: number of external vids: 4
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= note: where <T as std::iter::Iterator>::Item: '?3
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note: no external requirements
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--> $DIR/projection-no-regions-closure.rs:38:1
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LL | / fn wrong_region<'a, 'b, T>(x: Box<T>) -> Box<dyn Anything + 'a>
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LL | | where
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LL | | T: 'b + Iterator,
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| |_____________________^
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= note: defining type: wrong_region::<'?1, '?2, T>
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error[E0309]: the associated type `<T as Iterator>::Item` may not live long enough
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--> $DIR/projection-no-regions-closure.rs:42:31
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LL | fn wrong_region<'a, 'b, T>(x: Box<T>) -> Box<dyn Anything + 'a>
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| -- the associated type `<T as Iterator>::Item` must be valid for the lifetime `'a` as defined here...
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...
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LL | with_signature(x, |mut y| Box::new(y.next()))
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| ^^^^^^^^^^^^^^^^^^ ...so that the type `<T as Iterator>::Item` will meet its required lifetime bounds
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help: consider adding an explicit lifetime bound
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LL | T: 'b + Iterator, <T as Iterator>::Item: 'a
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| ~~~~~~~~~~~~~~~~~~~~~~~~~~~
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note: external requirements
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--> $DIR/projection-no-regions-closure.rs:52:23
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LL | with_signature(x, |mut y| Box::new(y.next()))
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| ^^^^^^^
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= note: defining type: outlives_region::<'?1, '?2, T>::{closure#0} with closure args [
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i32,
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extern "rust-call" fn((std::boxed::Box<T>,)) -> std::boxed::Box<(dyn Anything + '?3)>,
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(),
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]
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= note: number of external vids: 4
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= note: where <T as std::iter::Iterator>::Item: '?3
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note: no external requirements
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--> $DIR/projection-no-regions-closure.rs:47:1
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LL | / fn outlives_region<'a, 'b, T>(x: Box<T>) -> Box<dyn Anything + 'a>
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LL | | where
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LL | | T: 'b + Iterator,
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LL | | 'b: 'a,
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| |___________^
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= note: defining type: outlives_region::<'?1, '?2, T>
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0309`.
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