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/arrays/slice.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,37 @@
     1.4 +let invoked = false;
     1.5 +Object.defineProperty(Array.prototype, '0', {set: function () {
     1.6 +    invoked = true;
     1.7 +}});
     1.8 +
     1.9 +let result = [1, 2, 3].slice(1);
    1.10 +assertEq(invoked, false);
    1.11 +
    1.12 +let proxy = new Proxy({}, {
    1.13 +    get: function (target, name, proxy) {
    1.14 +        switch (name) {
    1.15 +          case "length":
    1.16 +            return 2;
    1.17 +          case "0":
    1.18 +            return 15;
    1.19 +          case "1":
    1.20 +            // Should not invoke [[Get]] for this hole.
    1.21 +          default:
    1.22 +            assertEq(false, true);
    1.23 +        }
    1.24 +    },
    1.25 +    has: function (target, name) {
    1.26 +        switch (name) {
    1.27 +          case "0":
    1.28 +            return true;
    1.29 +          case "1":
    1.30 +            return false;
    1.31 +          default:
    1.32 +            assertEq(false, true);
    1.33 +        }
    1.34 +    }
    1.35 +})
    1.36 +result = Array.prototype.slice.call(proxy, 0);
    1.37 +assertEq(result.length, 2);
    1.38 +assertEq(0 in result, true);
    1.39 +assertEq(1 in result, false);
    1.40 +assertEq(result[0], 15);