mirror of https://github.com/rust-lang/rust
29 lines
1.3 KiB
Plaintext
29 lines
1.3 KiB
Plaintext
error[E0038]: the trait `Foo` cannot be made into an object
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--> $DIR/inference_var_self_argument.rs:5:5
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LL | async fn foo(self: &dyn Foo) {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Foo` cannot be made into an object
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note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety>
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--> $DIR/inference_var_self_argument.rs:5:14
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LL | trait Foo {
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| --- this trait cannot be made into an object...
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LL | async fn foo(self: &dyn Foo) {
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| ^^^ ...because method `foo` is `async`
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= help: consider moving `foo` to another trait
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error[E0307]: invalid `self` parameter type: `&dyn Foo`
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--> $DIR/inference_var_self_argument.rs:5:24
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LL | async fn foo(self: &dyn Foo) {
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| ^^^^^^^^
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= note: type of `self` must be `Self` or a type that dereferences to it
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= 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`)
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0038, E0307.
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For more information about an error, try `rustc --explain E0038`.
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