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1 files changed, 13 insertions, 0 deletions

diff --git a/src/test/run-pass/writealias.rs b/src/test/run-pass/writealias.rs
new file mode 100644
index 00000000..96b2a9d7
--- /dev/null
+++ b/src/test/run-pass/writealias.rs
@@ -0,0 +1,13 @@
+// -*- rust -*-
+
+type point = rec(int x, int y, mutable int z);
+
+fn f(mutable &point p) {
+  p.z = 13;
+}
+
+fn main() {
+  let point x = rec(x=10, y=11, z=mutable 12);
+  f(x);
+  check (x.z == 13);
+}