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Wrong block referenced when emitting E0728 #63398

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Nashenas88 opened this issue Aug 9, 2019 · 0 comments

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@Nashenas88
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commented Aug 9, 2019

The following code (Playground link)

#![feature(async_await)]
async fn do_the_thing() -> u8 {
    8
}

fn main() {
    let x = move || {};
    let y = do_the_thing().await;
}

Emits the incorrect error:

   Compiling playground v0.0.1 (/playground)
error[E0728]: `await` is only allowed inside `async` functions and blocks
 --> src/main.rs:8:13
  |
7 |     let x = move || {};
  |             ------- this is not `async`
8 |     let y = do_the_thing().await;
  |             ^^^^^^^^^^^^^^^^^^^^ only allowed inside `async` functions and blocks

error: aborting due to previous error

error: Could not compile `playground`.

To learn more, run the command again with --verbose.

It should point to the block belonging to fn main and not the closure from the line above the usage of await.

@estebank estebank self-assigned this Aug 13, 2019

Centril added a commit to Centril/rust that referenced this issue Aug 14, 2019

Rollup merge of rust-lang#63509 - estebank:async-span, r=Centril
Point at the right enclosing scope when using `await` in non-async fn

Fix rust-lang#63398.

Centril added a commit to Centril/rust that referenced this issue Aug 14, 2019

Rollup merge of rust-lang#63509 - estebank:async-span, r=Centril
Point at the right enclosing scope when using `await` in non-async fn

Fix rust-lang#63398.

Centril added a commit to Centril/rust that referenced this issue Aug 14, 2019

Rollup merge of rust-lang#63509 - estebank:async-span, r=Centril
Point at the right enclosing scope when using `await` in non-async fn

Fix rust-lang#63398.

Centril added a commit to Centril/rust that referenced this issue Aug 14, 2019

Rollup merge of rust-lang#63509 - estebank:async-span, r=Centril
Point at the right enclosing scope when using `await` in non-async fn

Fix rust-lang#63398.

@bors bors closed this in #63509 Aug 15, 2019

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