1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/constructor-lifetime-args.rs b/tests/ui/constructor-lifetime-args.rs
new file mode 100644
index 000000000..a824a44c9
--- /dev/null
+++ b/tests/ui/constructor-lifetime-args.rs
@@ -0,0 +1,26 @@
+// All lifetime parameters in struct constructors are currently considered early bound,
+// i.e., `S::<ARGS>` is interpreted kinda like an associated item `S::<ARGS>::ctor`.
+// This behavior is a bit weird, because if equivalent constructor were written manually
+// it would get late bound lifetime parameters.
+// Variant constructors behave in the same way, lifetime parameters are considered
+// belonging to the enum and being early bound.
+// https://github.com/rust-lang/rust/issues/30904
+
+struct S<'a, 'b>(&'a u8, &'b u8);
+enum E<'a, 'b> {
+    V(&'a u8),
+    U(&'b u8),
+}
+
+fn main() {
+    S(&0, &0); // OK
+    S::<'static>(&0, &0);
+    //~^ ERROR this struct takes 2 lifetime arguments
+    S::<'static, 'static, 'static>(&0, &0);
+    //~^ ERROR this struct takes 2 lifetime arguments
+    E::V(&0); // OK
+    E::V::<'static>(&0);
+    //~^ ERROR this enum takes 2 lifetime arguments
+    E::V::<'static, 'static, 'static>(&0);
+    //~^ ERROR this enum takes 2 lifetime arguments
+}