rust/tests/ui/inference/cannot-infer-async.rs

// edition:2018

use std::io::Error;

fn make_unit() -> Result<(), Error> {
    Ok(())
}

fn main() {
    let fut = async {
        make_unit()?;

        Ok(())
        //~^ ERROR type annotations needed
    };
}
When needing type annotations in local bindings, account for impl Trait and closures Do not suggest nonsensical types when the type inference is failing on `impl Trait` or anonymous closures. 2019-08-12 16:50:46 -07:00			`// edition:2018`

			`use std::io::Error;`

Fix tidy 2019-08-12 18:42:19 -07:00			`fn make_unit() -> Result<(), Error> {`
When needing type annotations in local bindings, account for impl Trait and closures Do not suggest nonsensical types when the type inference is failing on `impl Trait` or anonymous closures. 2019-08-12 16:50:46 -07:00			`Ok(())`
			`}`

			`fn main() {`
			`let fut = async {`
Better rustc_on_unimplemented, and UI test fixes 2021-04-17 11:56:07 -07:00			`make_unit()?;`
Fix tidy 2019-08-12 18:42:19 -07:00
selection failure: recompute applicable impls 2022-10-19 17:17:19 +02:00			`Ok(())`
			`//~^ ERROR type annotations needed`
When needing type annotations in local bindings, account for impl Trait and closures Do not suggest nonsensical types when the type inference is failing on `impl Trait` or anonymous closures. 2019-08-12 16:50:46 -07:00			`};`
			`}`