// Debugger.Frame.prototype.this in functions, with object values function classOf(obj) { return Object.prototype.toString.call(obj).match(/^\[object (.*)\]$/)[1]; } var g = newGlobal(); var dbg = new Debugger(g); var hits = 0; dbg.onDebuggerStatement = function (frame) { hits++; assertEq(frame.this instanceof Debugger.Object, true); assertEq(frame.this.class, classOf(Object(g.v))); }; g.eval("function f() { debugger; }"); g.eval("v = {}; f.call(v);"); g.eval("v.f = f; v.f();"); g.eval("v = new Date; f.call(v);"); g.eval("v.f = f; v.f();"); g.eval("v = []; f.call(v);"); g.eval("Object.prototype.f = f; v.f();"); g.eval("v = this; f();"); assertEq(hits, 7);