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Add test for #66312
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Closes #66312. This issue was fixed by #68884.
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tmandry committed Mar 24, 2020
1 parent 374ab25 commit 1a21c28
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14 changes: 14 additions & 0 deletions src/test/ui/async-await/issue-66312.rs
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// edition:2018

trait Test<T> {
fn is_some(self: T); //~ ERROR invalid `self` parameter type
}

async fn f() {
let x = Some(2);
if x.is_some() {
println!("Some");
}
}

fn main() {}
12 changes: 12 additions & 0 deletions src/test/ui/async-await/issue-66312.stderr
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error[E0307]: invalid `self` parameter type: T
--> $DIR/issue-66312.rs:4:22
|
LL | fn is_some(self: T);
| ^
|
= note: type of `self` must be `Self` or a type that dereferences to it
= help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)

error: aborting due to previous error

For more information about this error, try `rustc --explain E0307`.

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