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