1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/class/checkreturn-for-of.js b/js/src/jit-test/tests/class/checkreturn-for-of.js
new file mode 100644
index 0000000000..2c06fd4ea0
--- /dev/null
+++ b/js/src/jit-test/tests/class/checkreturn-for-of.js
@@ -0,0 +1,27 @@
+load(libdir + "asserts.js");
+
+var error = {};
+
+var iter = {
+  [Symbol.iterator]() { return this; },
+  next() { return {done: false}; },
+  return() { throw error; },
+};
+
+class C extends class {} {
+  constructor() {
+    super();
+
+    for (var k of iter) {
+      return 0;
+    }
+  }
+}
+
+function test() {
+  for (var i = 0; i < 100; ++i) {
+    assertThrowsValue(() => new C(), error);
+  }
+}
+
+test();