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-rw-r--r--src/test/ui/deriving/deriving-default-enum.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/test/ui/deriving/deriving-default-enum.rs b/src/test/ui/deriving/deriving-default-enum.rs
index d1a81c72c..1c7a501ed 100644
--- a/src/test/ui/deriving/deriving-default-enum.rs
+++ b/src/test/ui/deriving/deriving-default-enum.rs
@@ -12,6 +12,16 @@ enum Foo {
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_eq!(Foo::default(), Foo::Alpha);
+ assert!(matches!(MyOption::<NotDefault>::default(), MyOption::None));
}