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error[E0271]: type mismatch resolving `<dyn Trait<B = B, A = A> as SuperTrait>::A == B`
--> $DIR/enforce-supertrait-projection.rs:9:5
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LL | fn transmute<A, B>(x: A) -> B {
| - - expected type parameter
| |
| found type parameter
LL | foo::<A, B, dyn Trait<A = A, B = B>>(x)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected type parameter `B`, found type parameter `A`
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= note: expected type parameter `B`
found type parameter `A`
= note: a type parameter was expected, but a different one was found; you might be missing a type parameter or trait bound
= note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
note: required by a bound in `foo`
--> $DIR/enforce-supertrait-projection.rs:15:8
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LL | fn foo<A, B, T: ?Sized>(x: T::A) -> B
| --- required by a bound in this
LL | where
LL | T: Trait<B = B>,
| ^^^^^^^^^^^^ required by this bound in `foo`
error: aborting due to previous error
For more information about this error, try `rustc --explain E0271`.
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