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95 lines
3.5 KiB
Plaintext
95 lines
3.5 KiB
Plaintext
error[E0412]: cannot find type `PhantomData` in this scope
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--> $DIR/issue-78372.rs:2:23
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LL | struct Smaht<T, MISC>(PhantomData);
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| ^^^^^^^^^^^ not found in this scope
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help: consider importing this struct
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LL + use std::marker::PhantomData;
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error[E0412]: cannot find type `U` in this scope
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--> $DIR/issue-78372.rs:3:31
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LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
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| - ^
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| |
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| similarly named type parameter `T` defined here
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help: a type parameter with a similar name exists
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LL | impl<T> DispatchFromDyn<Smaht<T, MISC>> for T {}
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| ~
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help: you might be missing a type parameter
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LL | impl<T, U> DispatchFromDyn<Smaht<U, MISC>> for T {}
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| +++
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error[E0412]: cannot find type `MISC` in this scope
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--> $DIR/issue-78372.rs:3:34
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LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
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| ^^^^ not found in this scope
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help: you might be missing a type parameter
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LL | impl<T, MISC> DispatchFromDyn<Smaht<U, MISC>> for T {}
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| ++++++
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error[E0658]: use of unstable library feature 'dispatch_from_dyn'
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--> $DIR/issue-78372.rs:1:5
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LL | use std::ops::DispatchFromDyn;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: add `#![feature(dispatch_from_dyn)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0658]: use of unstable library feature 'dispatch_from_dyn'
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--> $DIR/issue-78372.rs:3:9
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LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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= help: add `#![feature(dispatch_from_dyn)]` to the crate attributes to enable
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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
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error[E0038]: the trait `Foo` cannot be made into an object
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--> $DIR/issue-78372.rs:12:17
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LL | fn foo(self: Smaht<Self, T>);
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| -------------- help: consider changing method `foo`'s `self` parameter to be `&self`: `&Self`
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...
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LL | impl Marker for dyn Foo {}
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| ^^^^^^^ `Foo` cannot be made into an object
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note: for a trait to be "dyn-compatible" 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-78372.rs:9:18
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LL | trait Foo: X<u32> {}
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| --- this trait cannot be made into an object...
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LL | trait X<T> {
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LL | fn foo(self: Smaht<Self, T>);
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| ^^^^^^^^^^^^^^ ...because method `foo`'s `self` parameter cannot be dispatched on
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error[E0307]: invalid `self` parameter type: `Smaht<Self, T>`
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--> $DIR/issue-78372.rs:9:18
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LL | fn foo(self: Smaht<Self, T>);
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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[E0378]: the trait `DispatchFromDyn` may only be implemented for a coercion between structures
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--> $DIR/issue-78372.rs:3:1
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LL | impl<T> DispatchFromDyn<Smaht<U, MISC>> for T {}
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: aborting due to 8 previous errors
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Some errors have detailed explanations: E0038, E0307, E0378, E0412, E0658.
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For more information about an error, try `rustc --explain E0038`.
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