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|
async fn foo() {
//~^ ERROR `async fn` is not permitted in Rust 2015
//~| NOTE to use `async fn`, switch to Rust 2018 or later
//~| HELP pass `--edition 2021` to `rustc`
//~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide
let x = async {};
//~^ ERROR cannot find struct, variant or union type `async` in this scope
//~| NOTE `async` blocks are only allowed in Rust 2018 or later
let y = async { //~ NOTE `async` blocks are only allowed in Rust 2018 or later
let x = 42;
//~^ ERROR expected identifier, found keyword `let`
//~| NOTE expected identifier, found keyword
//~| HELP pass `--edition 2021` to `rustc`
//~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide
42
};
let z = async { //~ NOTE `async` blocks are only allowed in Rust 2018 or later
42
//~^ ERROR expected identifier, found `42`
//~| NOTE expected identifier
//~| HELP pass `--edition 2021` to `rustc`
//~| NOTE for more on editions, read https://doc.rust-lang.org/edition-guide
};
y.await;
z.await;
x
}
fn main() {}
|
