// Frame.prototype.this in non-strict-mode functions, with primitive 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, g.v == null ? classOf(g) : classOf(Object(g.v))); }; g.eval("function f() { debugger; }"); g.eval("Boolean.prototype.f = f; v = true; v.f();"); g.eval("f.call(v);"); g.eval("Number.prototype.f = f; v = 3.14; v.f();"); g.eval("f.call(v);"); g.eval("String.prototype.f = f; v = 'hello'; v.f();"); g.eval("f.call(v);"); g.eval("Symbol.prototype.f = f; v = Symbol('world'); v.f();"); g.eval("f.call(v);"); g.eval("v = undefined; f.call(v);"); g.eval("v = null; f.call(v);"); assertEq(hits, 10);