1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Frame-onPop-star-generators-03.js b/js/src/jit-test/tests/debug/Frame-onPop-star-generators-03.js
new file mode 100644
index 000000000..5e701a3ab
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Frame-onPop-star-generators-03.js
@@ -0,0 +1,42 @@
+// Each resumption of an ES6 generator gets a fresh frame, whose onPop
+// handler fires the next time the generator yields.  This is not the
+// behavior the spec requests, but it's what we do for the moment, and
+// it's good to check that at least we don't crash.
+
+load(libdir + 'iteration.js');
+
+var g = newGlobal();
+var dbg = new Debugger(g);
+var log;
+
+var debuggerFrames = [];
+var poppedFrames = [];
+dbg.onDebuggerStatement = function handleDebugger(frame) {
+    log += 'd';
+    assertEq(frame.type, "call");
+
+    assertEq(debuggerFrames.indexOf(frame), -1);
+    assertEq(poppedFrames.indexOf(frame), -1);
+    debuggerFrames.push(frame);
+
+    if (frame.eval('i').return % 3 == 0) {
+        frame.onPop = function handlePop(c) {
+            log += ')' + c.return.value;
+            assertEq(debuggerFrames.indexOf(this) != -1, true);
+            assertEq(poppedFrames.indexOf(this), -1);
+            poppedFrames.push(this);
+        };
+    }
+};
+
+g.eval("function* g() { for (var i = 0; i < 10; i++) { debugger; yield i; } }");
+log ='';
+g.eval("var t = 0, iter = g();");
+for (var j = 0; j < 10; j++)
+    g.eval("t += iter.next().value;");
+assertIteratorResult(g.eval("iter.next()"), undefined, true);
+assertEq(g.eval("t"), 45);
+
+// FIXME: Should equal this, but see bug 917809.
+// assertEq(log, "d)0ddd)3ddd)6ddd)9");
+assertEq(log, "d)undefinedddd)undefinedddd)undefinedddd)undefined");