22 lines
950 B
Plaintext
22 lines
950 B
Plaintext
error[E0038]: the trait `Baz` cannot be made into an object
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--> $DIR/object-safety-supertrait-mentions-Self.rs:15:31
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LL | fn make_baz<T:Baz>(t: &T) -> &dyn Baz {
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| ^^^^^^^ `Baz` 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/object-safety-supertrait-mentions-Self.rs:8:13
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LL | trait Baz : Bar<Self> {
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| --- ^^^^^^^^^ ...because it uses `Self` as a type parameter
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| |
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| this trait cannot be made into an object...
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help: consider using an opaque type instead
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LL | fn make_baz<T:Baz>(t: &T) -> &impl Baz {
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| ~~~~
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0038`.
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