rust/tests/ui/async-await/in-trait/async-recursive.rs

19 lines
356 B
Rust

//@ edition: 2021
trait MyTrait {
async fn foo_recursive(&self, n: usize) -> i32;
}
impl MyTrait for i32 {
async fn foo_recursive(&self, n: usize) -> i32 {
//~^ ERROR recursion in an async fn requires boxing
if n > 0 {
self.foo_recursive(n - 1).await
} else {
*self
}
}
}
fn main() {}