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error[E0271]: type mismatch resolving `<dyn Trait<A = A, B = B> as SuperTrait>::A == B`
--> $DIR/more-object-bound.rs:12:5
|
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`
|
= 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 because it appears within the type `dyn Trait<A = A, B = B>`
note: required by a bound in `foo`
--> $DIR/more-object-bound.rs:18:8
|
LL | fn foo<A, B, T: ?Sized>(x: T::A) -> B
| --- required by a bound in this function
LL | where
LL | T: Trait<B = B>,
| ^^^^^^^^^^^^ required by this bound in `foo`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0271`.
|
