Created
March 29, 2024 01:45
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| use std::future::Future; | |
| use tokio; | |
| async fn foo<'a, 'b>(a: &'a i32, b: &'b i32, c: &'b i32) -> i32 { | |
| a + b + c | |
| } | |
| async fn generic_fn<F, Fut>(f: F, a: &i32) -> i32 | |
| where | |
| F: Fn(&i32, &i32, &i32) -> Fut, | |
| Fut: Future<Output = i32>, | |
| { | |
| let b = 2; | |
| let c = 3; | |
| f(a, &b, &c).await | |
| } | |
| #[tokio::main] | |
| async fn main() { | |
| let a = 1; | |
| let result = generic_fn(foo, &a).await; | |
| println!("{}", result); | |
| } |
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I ended up resolving this by avoiding using the references inside the generic function and instead pass them by value. It leads to a copy, but it works fine for my use case. I could have also probably used an Arc, but I'm fine with copying.
Here's a working example:
https://gist.github.com/rcythr/16a70560c4292eae4a45979d8163515a