1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/hygiene/lambda-var-hygiene.rs b/tests/ui/hygiene/lambda-var-hygiene.rs
new file mode 100644
index 00000000000..bf06765e5dd
--- /dev/null
+++ b/tests/ui/hygiene/lambda-var-hygiene.rs
@@ -0,0 +1,12 @@
+// run-pass
+// shouldn't affect evaluation of $ex:
+macro_rules! bad_macro {
+    ($ex:expr) => ({(|_x| { $ex }) (9) })
+}
+
+fn takes_x(_x : isize) {
+    assert_eq!(bad_macro!(_x),8);
+}
+fn main() {
+    takes_x(8);
+}