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// check-pass
// Verify that variant count intrinsic can still evaluate for types like `Option<T>`.
#![feature(variant_count)]
pub struct GetVariantCount<T>(T);
impl<T> GetVariantCount<T> {
pub const VALUE: usize = std::mem::variant_count::<T>();
}
const fn check_variant_count<T>() -> bool {
matches!(GetVariantCount::<Option<T>>::VALUE, GetVariantCount::<Option<()>>::VALUE)
}
fn main() {
assert!(check_variant_count::<()>());
}
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