22 lines
437 B
Rust
22 lines
437 B
Rust
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// edition: 2021
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#![feature(async_fn_in_trait)]
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#![allow(incomplete_features)]
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trait MyTrait<T> {
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async fn foo_recursive(&self, n: usize) -> T;
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}
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impl<T> MyTrait<T> for T where T: Copy {
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async fn foo_recursive(&self, n: usize) -> T {
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//~^ ERROR recursion in an `async fn` requires boxing
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if n > 0 {
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self.foo_recursive(n - 1).await
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} else {
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*self
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}
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}
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}
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fn main() {}
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