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//@ build-pass
struct Foo<T>(T); // `T` is covariant.
struct Bar<T> {
x: T,
} // `T` is covariant.
fn bar<'b>(x: Bar<for<'a> fn(&'a ())>) {
let Bar { x }: Bar<fn(&'b ())> = x;
}
fn bar_nested<'b>(x: Bar<Bar<for<'a> fn(&'a ())>>) {
let Bar { x: Bar { x } }: Bar<Bar<fn(&'b ())>> = x;
}
fn bar_foo_nested<'b>(x: Bar<Foo<for<'a> fn(&'a ())>>) {
let Bar { x: Foo ( x ) }: Bar<Foo<fn(&'b ())>> = x;
}
fn foo<'b>(x: Foo<for<'a> fn(&'a ())>) {
let Foo(y): Foo<fn(&'b ())> = x;
}
fn foo_nested<'b>(x: Foo<Foo<for<'a> fn(&'a ())>>) {
let Foo(Foo(y)): Foo<Foo<fn(&'b ())>> = x;
}
fn tuple<'b>(x: (u32, for<'a> fn(&'a ()))) {
let (_, y): (u32, fn(&'b ())) = x;
}
fn tuple_nested<'b>(x: (u32, (u32, for<'a> fn(&'a ())))) {
let (_, (_, y)): (u32, (u32, fn(&'b ()))) = x;
}
fn main() {}
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