1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/gc-10.js b/js/src/jit-test/tests/debug/gc-10.js
new file mode 100644
index 0000000000..9a3fb00b3d
--- /dev/null
+++ b/js/src/jit-test/tests/debug/gc-10.js
@@ -0,0 +1,28 @@
+// Debugger.Frame objects should not be GC'd when doing so would have observable
+// effects.
+
+var g = newGlobal({ newCompartment: true });
+
+var log = '';
+var saved;
+
+new Debugger(g).onDebuggerStatement = function (frame) {
+
+  // Having a live onDebuggerStatement hook will (correctly) cause a Debugger to
+  // be retained, even if it is otherwise unreachable.
+  this.onDebuggerStatement = undefined;
+
+  // Give this Debugger.Frame an observable effect. It should not be GC'd.
+  frame.onPop = function () {
+    log += 'p';
+  }
+}
+
+g.parent = this;
+
+g.eval(`
+  debugger;
+  gc();
+`);
+
+assertEq(log, 'p');