mirror of https://github.com/rust-lang/rust
21 lines
762 B
Plaintext
21 lines
762 B
Plaintext
error: unconstrained opaque type
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--> $DIR/arbitrary-self-opaque.rs:4:12
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LL | type Bar = impl Sized;
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| ^^^^^^^^^^
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= note: `Bar` must be used in combination with a concrete type within the same module
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error[E0307]: invalid `self` parameter type: `Bar`
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--> $DIR/arbitrary-self-opaque.rs:8:18
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LL | fn foo(self: Bar) {}
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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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For more information about this error, try `rustc --explain E0307`.
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