mirror of https://github.com/rust-lang/rust
35 lines
1.5 KiB
Plaintext
35 lines
1.5 KiB
Plaintext
error[E0038]: the trait `Bar` cannot be made into an object
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--> $DIR/object-safety-associated-consts.rs:12:31
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LL | fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
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| ^^^^^^^ `Bar` 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-associated-consts.rs:9:11
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LL | trait Bar {
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| --- this trait cannot be made into an object...
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LL | const X: usize;
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| ^ ...because it contains this associated `const`
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= help: consider moving `X` to another trait
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error[E0038]: the trait `Bar` cannot be made into an object
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--> $DIR/object-safety-associated-consts.rs:14:5
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LL | t
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| ^ `Bar` 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-associated-consts.rs:9:11
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LL | trait Bar {
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| --- this trait cannot be made into an object...
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LL | const X: usize;
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| ^ ...because it contains this associated `const`
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= help: consider moving `X` to another trait
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= note: required for the cast from `&T` to `&dyn Bar`
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0038`.
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