1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-arguments-03.js b/js/src/jit-test/tests/debug/Frame-arguments-03.js
new file mode 100644
index 0000000000..b2d36eb0b5
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-arguments-03.js
@@ -0,0 +1,34 @@
+// Destructuring arguments.
+
+var g = newGlobal({newCompartment: true});
+var dbg = new Debugger(g);
+var hits = 0;
+dbg.onDebuggerStatement = function (frame) {
+    var args = frame.arguments;
+    assertEq(args[0], 1);
+    assertEq(args.length, 4);
+
+    assertEq(args[1] instanceof Debugger.Object, true);
+    assertEq(args[1].class, "Array");
+    var getprop = frame.eval("(function (p) { return this[p]; })").return;
+    assertEq(getprop instanceof Debugger.Object, true);
+    assertEq(getprop.apply(args[1], ["length"]).return, 2);
+    assertEq(getprop.apply(args[1], [0]).return, 2);
+    assertEq(getprop.apply(args[1], [1]).return, 3);
+
+    assertEq(args[2] instanceof Debugger.Object, true);
+    assertEq(args[2].class, "Object");
+    var x = getprop.apply(args[2], ["x"]).return;
+    assertEq(x.class, "Array"); 
+    assertEq(getprop.apply(x, ["0"]).return, 4);
+    assertEq(getprop.apply(args[2], ["z"]).return, 5);
+
+    assertEq(args[3] instanceof Debugger.Object, true);
+    assertEq(args[3].class, "Object");
+    assertEq(getprop.apply(args[3], ["q"]).return, 6);
+    hits++;
+};
+
+g.eval("function f(a, [b, c], {x: [y], z: w}, {q}) { debugger; }");
+g.eval("f(1, [2, 3], {x: [4], z: 5}, {q: 6});");
+assertEq(hits, 1);