1 files changed, 18 insertions, 0 deletions
diff --git a/src/tools/rustfmt/tests/target/issue-4159.rs b/src/tools/rustfmt/tests/target/issue-4159.rs
new file mode 100644
index 000000000..2f8cf20da
--- /dev/null
+++ b/src/tools/rustfmt/tests/target/issue-4159.rs
@@ -0,0 +1,18 @@
+extern "C" {
+    type A: Ord;
+
+    type A<'a>
+    where
+        'a: 'static;
+
+    type A<T: Ord>
+    where
+        T: 'static;
+
+    type A = u8;
+
+    type A<'a: 'static, T: Ord + 'static>: Eq + PartialEq
+    where
+        T: 'static + Copy,
+    = Vec<u8>;
+}