20 lines
414 B
Rust
20 lines
414 B
Rust
// edition: 2021
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#![feature(async_fn_in_trait)]
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#![allow(incomplete_features)]
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use std::future::Future;
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trait MyTrait {
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async fn foo(&self) -> i32;
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}
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impl MyTrait for i32 {
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fn foo(&self) -> impl Future<Output = i32> {
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//~^ ERROR `impl Trait` only allowed in function and inherent method argument and return types, not in `impl` method return types
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async { *self }
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}
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}
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fn main() {}
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