f5bae722be
Given `trait Any: 'static` and a `struct` with a `Box<dyn Any + 'a>` field, point at the `'static` bound in `Any` to explain why `'a: 'static`.
```
error[E0478]: lifetime bound not satisfied
--> f202.rs:2:12
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2 | value: Box<dyn std::any::Any + 'a>,
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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note: lifetime parameter instantiated with the lifetime `'a` as defined here
--> f202.rs:1:14
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1 | struct Hello<'a> {
| ^^
note: but lifetime parameter must outlive the static lifetime
--> /home/gh-estebank/rust/library/core/src/any.rs:113:16
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113 | pub trait Any: 'static {
| ^^^^^^^
```
Partially address #33652.
33 lines
1.2 KiB
Plaintext
33 lines
1.2 KiB
Plaintext
error[E0478]: lifetime bound not satisfied
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--> $DIR/explicit-static-bound-on-trait.rs:2:12
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LL | value: Box<dyn std::any::Any + 'a>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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note: lifetime parameter instantiated with the lifetime `'a` as defined here
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--> $DIR/explicit-static-bound-on-trait.rs:1:14
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LL | struct Hello<'a> {
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| ^^
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note: but lifetime parameter must outlive the static lifetime
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--> $SRC_DIR/core/src/any.rs:LL:COL
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error[E0310]: the parameter type `T` may not live long enough
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--> $DIR/explicit-static-bound-on-trait.rs:8:23
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LL | Self { value: Box::new(value) }
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| ^^^^^^^^^^^^^^^
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| the parameter type `T` must be valid for the static lifetime...
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| ...so that the type `T` will meet its required lifetime bounds
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help: consider adding an explicit lifetime bound
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LL | fn new<T: 'a + 'static>(value: T) -> Self {
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| +++++++++
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0310, E0478.
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For more information about an error, try `rustc --explain E0310`.
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