var testCase = function (actual, expected, message) { if (actual !== expected) { throw message + ". Expected '" + expected + "', but was '" + actual + "'"; } }; function Dog(name) { this.name = name; this.getName = () => eval("this.name"); this.getNameHard = () => eval("(() => this.name)()"); this.getNameReallyHard = () => eval("eval('(() => this.name)()')"); } noInline(Dog) for (var i=0;i<10000; i++) { var d = new Dog("Max"); testCase(d.getName(), d.name, "Error: this is not lexically binded inside of the arrow function #1"); testCase(d.getNameHard(), d.name, "Error: this is not lexically binded inside of the arrow function #2"); testCase(d.getNameReallyHard(), d.name, "Error: this is not lexically binded inside of the arrow function #3"); }