1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/gc-08.js b/js/src/jit-test/tests/debug/gc-08.js
new file mode 100644
index 000000000..9999ba6bc
--- /dev/null
+++ b/js/src/jit-test/tests/debug/gc-08.js
@@ -0,0 +1,22 @@
+// Debuggers with enabled onExceptionUnwind hooks should not be GC'd even if
+// they are otherwise unreachable.
+
+load(libdir + "asserts.js");
+
+var g = newGlobal();
+var actual = 0;
+var expected = 0;
+
+function f() {
+    for (var i = 0; i < 20; i++) {
+        var dbg = new Debugger(g);
+        dbg.num = i;
+        dbg.onExceptionUnwind = function (stack, exc) { actual += this.num; };
+        expected += i;
+    }
+}
+
+f();
+gc();
+assertThrowsValue(function () { g.eval("throw 'fit';"); }, "fit");
+assertEq(actual, expected);