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error[E0393]: the type parameter `T` must be explicitly specified
--> $DIR/issue-22370.rs:3:14
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LL | trait A<T=Self> {}
| --------------- type parameter `T` must be specified for this
LL |
LL | fn f(a: &dyn A) {}
| ^
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= note: because the parameter default references `Self`, the parameter must be specified on the object type
help: set the type parameter to the desired type
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LL | fn f(a: &dyn A<T>) {}
| +++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0393`.
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