michael@0: // onPop surfaces.
michael@0: load(libdir + "asserts.js");
michael@0: 
michael@0: var g = newGlobal();
michael@0: var dbg = new Debugger(g);
michael@0: 
michael@0: // Assigning a bogus value to Debugger.Frame.prototype.onPop raises a TypeError.
michael@0: function test(badValue) {
michael@0:     print("store " + uneval(badValue) + " in Debugger.Frame.prototype.onPop");
michael@0: 
michael@0:     var log;
michael@0:     dbg.onDebuggerStatement = function handleDebugger(frame) {
michael@0:         log += "d";
michael@0:         assertThrowsInstanceOf(function () { frame.onPop = badValue; }, TypeError);
michael@0:     };
michael@0: 
michael@0:     log = "";
michael@0:     g.eval("debugger");
michael@0:     assertEq(log, "d");
michael@0: }
michael@0: 
michael@0: test(null);
michael@0: test(false);
michael@0: test(1);
michael@0: test("stringy");
michael@0: test({});
michael@0: test([]);
michael@0: 
michael@0: // Getting and setting the prototype's onPop is an error.
michael@0: assertThrowsInstanceOf(function () { Debugger.Frame.prototype.onPop; }, TypeError);
michael@0: assertThrowsInstanceOf(
michael@0:     function () { Debugger.Frame.prototype.onPop = function () {}; },
michael@0:     TypeError);
michael@0: 
michael@0: // The getters and setters correctly check the type of their 'this' argument.
michael@0: var descriptor = Object.getOwnPropertyDescriptor(Debugger.Frame.prototype, 'onPop');
michael@0: assertEq(descriptor.configurable, true);
michael@0: assertEq(descriptor.enumerable, false);
michael@0: assertThrowsInstanceOf(function () { descriptor.get.call({}); }, TypeError);
michael@0: assertThrowsInstanceOf(function () { descriptor.set.call({}, function() {}); }, TypeError);