The Tor Browser: js/src/jit-test/tests/ion/nativeElementAccesses.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     2 function testOverwritingSparseHole()

3 {

     4   var x = [];

     5   for (var i = 0; i < 50; i++)

     6     x[i] = i;

     7   var hit = false;

     8   Object.defineProperty(x, 40, {set: function() { hit = true; }});

     9   for (var i = 0; i < 50; i++)

    10     x[i] = 10;

    11   assertEq(hit, true);

    12 }

    13 testOverwritingSparseHole();

    15 function testReadingSparseHole()

    16 {

    17   var x = [];

    18   for (var i = 5; i < 50; i++)

    19     x[i] = i;

    20   var hit = false;

    21   Object.defineProperty(x, 40, {get: function() { hit = true; return 5.5; }});

    22   var res = 0;

    23   for (var i = 0; i < 50; i++) {

    24     res += x[i];

    25     if (i == 10)

    26       res = 0;

    27   }

    28   assertEq(res, 1135.5);

    29   assertEq(hit, true);

    30 }

    31 testReadingSparseHole();

    33 function testInSparseHole()

    34 {

    35   var x = [];

    36   for (var i = 5; i < 50; i++)

    37     x[i] = i;

    38   Object.defineProperty(x, 40, {get: function() {}});

    39   var res = 0;

    40   for (var i = 0; i < 50; i++)

    41     res += (i in x) ? 1 : 0;

    42   assertEq(res, 45);

    43 }

    44 testInSparseHole();

The Tor Browser / file revision