1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/variance/variance-regions-unused-indirect.rs b/tests/ui/variance/variance-regions-unused-indirect.rs
new file mode 100644
index 000000000..6c2c24ddb
--- /dev/null
+++ b/tests/ui/variance/variance-regions-unused-indirect.rs
@@ -0,0 +1,12 @@
+// Test that disallow lifetime parameters that are unused.
+
+enum Foo<'a> { //~ ERROR parameter `'a` is never used
+    //~^ ERROR recursive types `Foo` and `Bar` have infinite size
+    Foo1(Bar<'a>)
+}
+
+enum Bar<'a> { //~ ERROR parameter `'a` is never used
+    Bar1(Foo<'a>)
+}
+
+fn main() {}