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`non_local_bounds` would only find non local bounds that strictly bound a given region, but it's possible that a local region is equated to 'static when showing a type referencing a locally bound lifetime, such as `dyn Any + 'a` in the tests added, is well-formed. In this case we should return 'static.
18 lines
664 B
Plaintext
18 lines
664 B
Plaintext
error[E0310]: the parameter type `E` may not live long enough
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--> $DIR/unconstrained-closure-lifetime-trait-object.rs:7:29
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LL | Box::new(|e| Box::new(e.is::<E>()))
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| ^^
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| the parameter type `E` must be valid for the static lifetime...
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| ...so that the type `E` will meet its required lifetime bounds
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help: consider adding an explicit lifetime bound
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LL | fn foo<E: 'static>() -> B {
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| +++++++++
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0310`.
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