#![feature(staged_api)] #![stable(feature = "stable_test_feature", since = "1.0.0")] #[stable(feature = "stable_test_feature", since = "1.0.0")] #[non_exhaustive] pub enum UnstableEnum { #[stable(feature = "stable_test_feature", since = "1.0.0")] Stable, #[stable(feature = "stable_test_feature", since = "1.0.0")] Stable2, #[unstable(feature = "unstable_test_feature", issue = "none")] Unstable, } #[stable(feature = "stable_test_feature", since = "1.0.0")] #[non_exhaustive] pub enum OnlyUnstableEnum { #[unstable(feature = "unstable_test_feature", issue = "none")] Unstable, #[unstable(feature = "unstable_test_feature", issue = "none")] Unstable2, } impl OnlyUnstableEnum { #[stable(feature = "stable_test_feature", since = "1.0.0")] pub fn new() -> Self { Self::Unstable } }