1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-implementation-01.js b/js/src/jit-test/tests/debug/Frame-implementation-01.js
new file mode 100644
index 0000000000..5eaeea97fb
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-implementation-01.js
@@ -0,0 +1,45 @@
+// Debugger.Frames of all implementations.
+
+load(libdir + "jitopts.js");
+
+function testFrameImpl(jitopts, assertFrameImpl) {
+  if (!jitTogglesMatch(jitopts))
+    return;
+
+  withJitOptions(jitopts, function () {
+    var g = newGlobal({newCompartment: true});
+    var dbg = new Debugger;
+
+    g.toggle = function toggle(d) {
+      if (d) {
+        dbg.addDebuggee(g);
+        var frame = dbg.getNewestFrame();
+        // We only care about the f and g frames.
+        for (var i = 0; i < 2; i++) {
+          assertFrameImpl(frame);
+          frame = frame.older;
+        }
+      }
+    };
+
+    g.eval("" + function f(d) { g(d); });
+    g.eval("" + function g(d) { toggle(d); });
+
+    g.eval("(" + function test() {
+      for (var i = 0; i < 5; i++)
+        f(false);
+      f(true);
+    } + ")();");
+  });
+}
+
+[[Opts_BaselineEager,
+  function (f) { assertEq(f.implementation, "baseline"); }],
+ // Note that the Ion case *depends* on CCW scripted functions being opaque to
+ // Ion optimization and not deoptimizing the frames below the call to toggle.
+ [Opts_Ion2NoOffthreadCompilation,
+  function (f) { assertEq(f.implementation, "ion"); }],
+ [Opts_NoJits,
+  function (f) { assertEq(f.implementation, "interpreter"); }]].forEach(function ([opts, fn]) {
+    testFrameImpl(opts, fn);
+  });