rust/tests/ui/associated-types/associated-types-issue-2034...

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error[E0271]: type mismatch resolving `<Adapter<I> as Iterator>::Item == Option<T>`
--> $DIR/associated-types-issue-20346.rs:34:36
|
LL | fn test_adapter<T, I: Iterator<Item=Option<T>>>(it: I) {
| - found this type parameter
...
LL | is_iterator_of::<Option<T>, _>(&adapter);
| ------------------------------ ^^^^^^^^ type mismatch resolving `<Adapter<I> as Iterator>::Item == Option<T>`
| |
| required by a bound introduced by this call
|
note: expected this to be `Option<T>`
--> $DIR/associated-types-issue-20346.rs:23:17
|
LL | type Item = T;
| ^
= note: expected enum `Option<T>`
found type parameter `T`
note: required by a bound in `is_iterator_of`
--> $DIR/associated-types-issue-20346.rs:15:34
|
LL | fn is_iterator_of<A, I: Iterator<Item=A>>(_: &I) {}
| ^^^^^^ required by this bound in `is_iterator_of`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0271`.