| function f(arr, v) |
| { |
| arr.push(v); |
| } |
| |
| function basic(out) |
| { |
| // Use a much-greater capacity than the eventual non-writable length. |
| var a = out.a = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]; |
| Object.defineProperty(a, "length", { writable: false, value: 6 }); |
| |
| f(a, 99); |
| } |
| |
| var obj = {}; |
| var a; |
| |
| try |
| { |
| basic(obj); |
| throw new Error("didn't throw!"); |
| } |
| catch (e) |
| { |
| assertEq(e instanceof TypeError, true, "expected TypeError, got " + e); |
| |
| a = obj.a; |
| assertEq(a.hasOwnProperty(6), false); |
| assertEq(a[6], undefined); |
| assertEq(a.length, 6); |
| } |
