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27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
error[E0271]: type mismatch resolving `<dyn Trait<A = A, B = B> as SuperTrait>::A == B`
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--> $DIR/enforce-supertrait-projection.rs:9:17
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LL | fn transmute<A, B>(x: A) -> B {
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| - - expected type parameter
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| |
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| found type parameter
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LL | foo::<A, B, dyn Trait<A = A, B = B>>(x)
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| ^^^^^^^^^^^^^^^^^^^^^^^ expected type parameter `B`, found type parameter `A`
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= note: expected type parameter `B`
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found type parameter `A`
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= note: a type parameter was expected, but a different one was found; you might be missing a type parameter or trait bound
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= note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
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note: required by a bound in `foo`
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--> $DIR/enforce-supertrait-projection.rs:15:8
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LL | fn foo<A, B, T: ?Sized>(x: T::A) -> B
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| --- required by a bound in this function
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LL | where
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LL | T: Trait<B = B>,
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| ^^^^^^^^^^^^ required by this bound in `foo`
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0271`.
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