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/basic/testMissingProperties.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,49 @@
     1.4 +function isnan(n) { return n !== n }
     1.5 +
     1.6 +function f(x) {
     1.7 +    var sum = 0;
     1.8 +    for (var i = 0; i < 100; ++i)
     1.9 +        sum += x.x;
    1.10 +    return sum;
    1.11 +}
    1.12 +var o = {};
    1.13 +assertEq(isnan(f(o)), true);
    1.14 +o.x = 1;
    1.15 +assertEq(f(o), 100);
    1.16 +var o = {a:1, b:2};
    1.17 +assertEq(isnan(f(o)), true);
    1.18 +o.x = 2;
    1.19 +assertEq(f(o), 200);
    1.20 +
    1.21 +function g(x) {
    1.22 +    var sum = 0;
    1.23 +    for (var i = 0; i < 100; ++i)
    1.24 +        sum += x.x;
    1.25 +    return sum;
    1.26 +}
    1.27 +var o = {c:1, x:1};
    1.28 +assertEq(g(o), 100);
    1.29 +var o = {};
    1.30 +assertEq(isnan(g(o)), true);
    1.31 +
    1.32 +function h(x) {
    1.33 +    var sum = 0;
    1.34 +    for (var i = 0; i < 100; ++i)
    1.35 +        sum += x.x;
    1.36 +    return sum;
    1.37 +}
    1.38 +
    1.39 +var proto1 = {};
    1.40 +var proto2 = Object.create(proto1);
    1.41 +var o = Object.create(proto2);
    1.42 +assertEq(isnan(f(o)), true);
    1.43 +assertEq(isnan(g(o)), true);
    1.44 +assertEq(isnan(h(o)), true);
    1.45 +proto2.x = 2;
    1.46 +assertEq(f(o), 200);
    1.47 +assertEq(g(o), 200);
    1.48 +assertEq(h(o), 200);
    1.49 +var o = {}
    1.50 +assertEq(isnan(f(o)), true);
    1.51 +assertEq(isnan(g(o)), true);
    1.52 +assertEq(isnan(h(o)), true);