mirror of https://github.com/rust-lang/rust
57 lines
2.2 KiB
Plaintext
57 lines
2.2 KiB
Plaintext
error[E0225]: only auto traits can be used as additional traits in a trait object
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--> $DIR/issue-22560.rs:9:23
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LL | type Test = dyn Add + Sub;
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| --- ^^^ additional non-auto trait
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| first non-auto trait
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= help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Add + Sub {}`
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= note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
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error[E0191]: the value of the associated types `Output` in `Add`, `Output` in `Sub` must be specified
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--> $DIR/issue-22560.rs:9:17
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LL | type Output;
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| ----------- `Output` defined here
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...
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LL | type Output;
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| ----------- `Output` defined here
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...
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LL | type Test = dyn Add + Sub;
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| ^^^ ^^^ associated type `Output` must be specified
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| |
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| associated type `Output` must be specified
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help: specify the associated types
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LL | type Test = dyn Add<Output = Type> + Sub<Output = Type>;
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| ~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~
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error[E0393]: the type parameter `Rhs` must be explicitly specified
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--> $DIR/issue-22560.rs:9:17
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LL | trait Add<Rhs=Self> {
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| ------------------- type parameter `Rhs` must be specified for this
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...
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LL | type Test = dyn Add + Sub;
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| ^^^ help: set the type parameter to the desired type: `Add<Rhs>`
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= note: because of the default `Self` reference, type parameters must be specified on object types
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error[E0393]: the type parameter `Rhs` must be explicitly specified
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--> $DIR/issue-22560.rs:9:23
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LL | trait Sub<Rhs=Self> {
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| ------------------- type parameter `Rhs` must be specified for this
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...
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LL | type Test = dyn Add + Sub;
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| ^^^ help: set the type parameter to the desired type: `Sub<Rhs>`
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= note: because of the default `Self` reference, type parameters must be specified on object types
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error: aborting due to 4 previous errors
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Some errors have detailed explanations: E0191, E0225, E0393.
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For more information about an error, try `rustc --explain E0191`.
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