third_party/WebKit/LayoutTests/fast/js/script-tests/dfg-logical-not-final-object-or-other.js

   1 description(
   2 "Tests that logical not of an object where it is predicted either final object or other (i.e. null or undefined) performs correctly when document.all is present."
   3 );
   4
   5 if (document.all)
   6     var unused = 1;
   7
   8 function foo(a) {
   9     var t = !a;
  10
  11     if (a == 16)
  12         return -1;
  13
  14     if (t)
  15         return false;
  16     return true;
  17 }
  18
  19 for (var i = 0; i < 100; ++i) {
  20     if (i%2) {
  21         var o = {f:42};
  22         shouldBe("foo(o)", "true");
  23     } else
  24         shouldBe("foo(null)", "false");
  25 }
  26