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error[E0277]: expected a `Fn()` closure, found `T`
--> $DIR/issue-68644-codegen-selection.rs:12:18
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LL | type F<'a> = Self;
| ^^^^ expected an `Fn()` closure, found `T`
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= note: wrap the `T` in a closure with no arguments: `|| { /* code */ }`
note: required by a bound in `Fun::F`
--> $DIR/issue-68644-codegen-selection.rs:4:17
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LL | type F<'a>: Fn() -> u32;
| ^^^^^^^^^^^ required by this bound in `Fun::F`
help: consider restricting type parameter `T` with trait `Fn`
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LL | impl<T: Fn()> Fun for T {
| ++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.
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