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//@ run-pass
// nb: does not impl Default
#[derive(Debug, PartialEq)]
struct NotDefault;
#[derive(Debug, Default, PartialEq)]
enum Foo {
#[default]
Alpha,
#[allow(dead_code)]
Beta(NotDefault),
}
// #[default] on a generic enum does not add `Default` bounds to the type params.
#[derive(Default)]
enum MyOption<T> {
#[default]
None,
#[allow(dead_code)]
Some(T),
}
fn main() {
assert!(matches!(Foo::default(), Foo::Alpha));
assert!(matches!(MyOption::<NotDefault>::default(), MyOption::None));
}
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