The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/ion/nativeElementAccesses.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,44 @@
     1.4 +
     1.5 +function testOverwritingSparseHole()
     1.6 +{
     1.7 +  var x = [];
     1.8 +  for (var i = 0; i < 50; i++)
     1.9 +    x[i] = i;
    1.10 +  var hit = false;
    1.11 +  Object.defineProperty(x, 40, {set: function() { hit = true; }});
    1.12 +  for (var i = 0; i < 50; i++)
    1.13 +    x[i] = 10;
    1.14 +  assertEq(hit, true);
    1.15 +}
    1.16 +testOverwritingSparseHole();
    1.17 +
    1.18 +function testReadingSparseHole()
    1.19 +{
    1.20 +  var x = [];
    1.21 +  for (var i = 5; i < 50; i++)
    1.22 +    x[i] = i;
    1.23 +  var hit = false;
    1.24 +  Object.defineProperty(x, 40, {get: function() { hit = true; return 5.5; }});
    1.25 +  var res = 0;
    1.26 +  for (var i = 0; i < 50; i++) {
    1.27 +    res += x[i];
    1.28 +    if (i == 10)
    1.29 +      res = 0;
    1.30 +  }
    1.31 +  assertEq(res, 1135.5);
    1.32 +  assertEq(hit, true);
    1.33 +}
    1.34 +testReadingSparseHole();
    1.35 +
    1.36 +function testInSparseHole()
    1.37 +{
    1.38 +  var x = [];
    1.39 +  for (var i = 5; i < 50; i++)
    1.40 +    x[i] = i;
    1.41 +  Object.defineProperty(x, 40, {get: function() {}});
    1.42 +  var res = 0;
    1.43 +  for (var i = 0; i < 50; i++)
    1.44 +    res += (i in x) ? 1 : 0;
    1.45 +  assertEq(res, 45);
    1.46 +}
    1.47 +testInSparseHole();