rust/tests/ui/closures/issue-101696.rs

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// check-pass
use std::marker::PhantomData;
#[derive(Default)]
struct MyType<'a> {
field: usize,
_phantom: PhantomData<&'a ()>,
}
#[derive(Default)]
struct MyTypeVariant<'a> {
field: usize,
_phantom: PhantomData<&'a ()>,
}
trait AsVariantTrait {
type Type;
}
impl<'a> AsVariantTrait for MyType<'a> {
type Type = MyTypeVariant<'a>;
}
type Variant<G> = <G as AsVariantTrait>::Type;
fn foo<T: Default, F: FnOnce(T)>(f: F) {
let input = T::default();
f(input);
}
fn main() {
foo(|a: <MyType as AsVariantTrait>::Type| {
a.field;
});
}