author | Tom Schuster <evilpies@gmail.com> |
Thu, 05 Dec 2013 20:07:25 +0100 | |
changeset 159637 | 56eb22c6f6c7d77e754d46d7858d9f6cfe0be738 |
parent 159636 | 0fbdff3a10e38819be92320e95e8a98c93186662 |
child 159638 | d33302ff2866b45212c0d260b028af7803aae8a8 |
push id | 25808 |
push user | cbook@mozilla.com |
push date | Tue, 10 Dec 2013 12:03:31 +0000 |
treeherder | mozilla-central@7fb91a422c5e [default view] [failures only] |
perfherder | [talos] [build metrics] [platform microbench] (compared to previous push) |
reviewers | jandem |
bugs | 697343 |
milestone | 29.0a1 |
first release with | nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
|
last release without | nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
|
new file mode 100644 --- /dev/null +++ b/js/src/jit-test/tests/arrays/slice.js @@ -0,0 +1,37 @@ +let invoked = false; +Object.defineProperty(Array.prototype, '0', {set: function () { + invoked = true; +}}); + +let result = [1, 2, 3].slice(1); +assertEq(invoked, false); + +let proxy = new Proxy({}, { + get: function (target, name, proxy) { + switch (name) { + case "length": + return 2; + case "0": + return 15; + case "1": + // Should not invoke [[Get]] for this hole. + default: + assertEq(false, true); + } + }, + has: function (target, name) { + switch (name) { + case "0": + return true; + case "1": + return false; + default: + assertEq(false, true); + } + } +}) +result = Array.prototype.slice.call(proxy, 0); +assertEq(result.length, 2); +assertEq(0 in result, true); +assertEq(1 in result, false); +assertEq(result[0], 15);