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/testIncDecReadOnly.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,22 @@
     1.4 +var r;
     1.5 +Object.defineProperty(this, "x", {value: 0, writable: false});
     1.6 +
     1.7 +for (var a = 0; a < 10; ++a)
     1.8 +    r = ++x;
     1.9 +assertEq(x, 0);
    1.10 +assertEq(r, 1);
    1.11 +
    1.12 +for (var a = 0; a < 10; ++a)
    1.13 +    r = --x;
    1.14 +assertEq(x, 0);
    1.15 +assertEq(r, -1);
    1.16 +
    1.17 +for (var a = 0; a < 10; ++a)
    1.18 +    r = x++;
    1.19 +assertEq(x, 0);
    1.20 +assertEq(r, 0);
    1.21 +
    1.22 +for (var a = 0; a < 10; ++a)
    1.23 +    r = x--;
    1.24 +assertEq(x, 0);
    1.25 +assertEq(r, 0);