bjoernager/rust
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Add `dyn` keyword

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This commit is contained in:
Kirill Podoprigora 2025-03-03 22:58:03 +02:00
parent d491662340
commit a89cddb2be
1 changed files with 2 additions and 2 deletions
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4
compiler/rustc_error_codes/src/error_codes/E0373.md
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@ -3,7 +3,7 @@ A captured variable in a closure may not live long enough.
Erroneous code example: Erroneous code example:
```compile_fail,E0373 ```compile_fail,E0373
fn foo() -> Box<Fn(u32) -> u32> { fn foo() -> Box<dyn Fn(u32) -> u32> {
let x = 0u32; let x = 0u32;
Box::new(|y| x + y) Box::new(|y| x + y)
} }
@ -42,7 +42,7 @@ This approach moves (or copies, where possible) data into the closure, rather
than taking references to it. For example: than taking references to it. For example:
``` ```
fn foo() -> Box<Fn(u32) -> u32> { fn foo() -> Box<dyn Fn(u32) -> u32> {
let x = 0u32; let x = 0u32;
Box::new(move |y| x + y) Box::new(move |y| x + y)
} }