Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // Flags: --allow-natives-syntax |
| 6 | |
| 7 | function set_length(a, l) { |
| 8 | a.length = l; |
| 9 | } |
| 10 | |
| 11 | function test1() { |
| 12 | var l = {}; |
| 13 | var a = Array(l); |
| 14 | set_length(a, 3); |
| 15 | set_length(a, 3); |
| 16 | assertEquals(3, a.length); |
| 17 | } |
| 18 | |
| 19 | function test2() { |
| 20 | var a = []; |
| 21 | set_length(a, 10); |
| 22 | set_length(a, 10); |
| 23 | Object.freeze(a); |
| 24 | set_length(a, 3); |
| 25 | set_length(a, 3); |
| 26 | assertEquals(10, a.length); |
| 27 | } |
| 28 | |
| 29 | function test3() { |
| 30 | var a = [2]; |
| 31 | Object.defineProperty(a, "length", {value:2, writable: false}); |
| 32 | %ToFastProperties(a); |
| 33 | set_length([], 10); |
| 34 | set_length([], 10); |
| 35 | set_length(a, 10); |
| 36 | set_length(a, 10); |
| 37 | assertEquals(2, a.length); |
| 38 | } |
| 39 | |
| 40 | test1(); |
| 41 | test2(); |
| 42 | test3(); |