tests/stress/is-undefined-masquerader.js

   1 function foo(o) {
   2     return typeof o === "undefined";
   3 }
   4
   5 noInline(foo);
   6
   7 function test(o, expected) {
   8     var result = foo(o);
   9     if (result != expected)
  10         throw new Error("bad result: " + result);
  11 }
  12
  13 for (var i = 0; i < 10000; ++i) {
  14     test(void 0, true);
  15     test(null, false);
  16     test(42, false);
  17     test({}, false);
  18     test("undefined", false);
  19     test(makeMasquerader(), true);
  20 }