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66 lines
2.4 KiB
Plaintext
66 lines
2.4 KiB
Plaintext
error[E0038]: the trait `Bar` cannot be made into an object
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--> $DIR/issue-28576.rs:9:12
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LL | / dyn Bar
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LL | | <Assoc=()>
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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/issue-28576.rs:5:16
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LL | pub trait Bar: Foo<Assoc=()> {
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| --- ^^^^^^^^^^^^^
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| | | |
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| | | ...because it uses `Self` as a type parameter
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| | ...because it uses `Self` as a type parameter
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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 | impl Bar
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| ~~~~
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error[E0277]: the size for values of type `Self` cannot be known at compilation time
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--> $DIR/issue-28576.rs:5:16
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LL | pub trait Bar: Foo<Assoc=()> {
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `Foo`
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--> $DIR/issue-28576.rs:1:15
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LL | pub trait Foo<RHS=Self> {
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| ^^^^^^^^ required by the implicit `Sized` requirement on this type parameter in `Foo`
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help: consider further restricting `Self`
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LL | pub trait Bar: Foo<Assoc=()> + Sized {
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| +++++++
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help: consider relaxing the implicit `Sized` restriction
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LL | pub trait Foo<RHS: ?Sized=Self> {
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| ++++++++
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error[E0277]: the size for values of type `Self` cannot be known at compilation time
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--> $DIR/issue-28576.rs:5:16
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LL | pub trait Bar: Foo<Assoc=()> {
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| ^^^^^^^^^^^^^ doesn't have a size known at compile-time
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note: required by an implicit `Sized` bound in `Foo`
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--> $DIR/issue-28576.rs:1:15
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LL | pub trait Foo<RHS=Self> {
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| ^^^^^^^^ required by the implicit `Sized` requirement on this type parameter in `Foo`
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help: consider further restricting `Self`
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LL | ) where Self: Sized;
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| +++++++++++++++++
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help: consider relaxing the implicit `Sized` restriction
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LL | pub trait Foo<RHS: ?Sized=Self> {
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| ++++++++
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error: aborting due to 3 previous errors
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Some errors have detailed explanations: E0038, E0277.
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For more information about an error, try `rustc --explain E0038`.
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