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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
(...skipping 14 matching lines...) Expand all Loading... |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // This regression tests that we are not allowed to overwrite an existing | 28 // This regression tests that we are not allowed to overwrite an existing |
29 // non-configurable getter with a new getter. In addition, we should not | 29 // non-configurable getter with a new getter. In addition, we should not |
30 // be able to change the configurable flag from false to true. | 30 // be able to change the configurable flag from false to true. |
31 | 31 |
32 var a = {}; | 32 var a = {}; |
33 Object.defineProperty(a, 'b', | 33 Object.defineProperty(a, 'b', |
34 { get: function () { return 42; }, configurable: false }); | 34 { get: function () { return 42; }, configurable: false }); |
35 try { | 35 // Do not allow us to redefine b on a. |
36 a.__defineGetter__('b', function _b(){ return 'foo'; }); | 36 a.__defineGetter__('b', function _b(){ return 'foo'; }); |
37 assertUnreachable(); | |
38 } catch (e) { | |
39 assertTrue(/Cannot redefine property/.test(e)); | |
40 } | |
41 assertEquals(42, a.b); | 37 assertEquals(42, a.b); |
42 var desc = Object.getOwnPropertyDescriptor(a, 'b'); | 38 var desc = Object.getOwnPropertyDescriptor(a, 'b'); |
43 assertFalse(desc.configurable); | 39 assertFalse(desc.configurable); |
44 // Copyright 2011 the V8 project authors. All rights reserved. | |
45 // Redistribution and use in source and binary forms, with or without | |
46 // modification, are permitted provided that the following conditions are | |
47 // met: | |
48 // | |
49 // * Redistributions of source code must retain the above copyright | |
50 // notice, this list of conditions and the following disclaimer. | |
51 // * Redistributions in binary form must reproduce the above | |
52 // copyright notice, this list of conditions and the following | |
53 // disclaimer in the documentation and/or other materials provided | |
54 // with the distribution. | |
55 // * Neither the name of Google Inc. nor the names of its | |
56 // contributors may be used to endorse or promote products derived | |
57 // from this software without specific prior written permission. | |
58 // | |
59 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
60 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
61 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
62 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
63 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
64 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
65 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
66 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
67 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
68 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
69 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
70 | |
71 // This regression tests that we are not allowed to overwrite an existing | |
72 // non-configurable getter with a new getter. In addition, we should not | |
73 // be able to change the configurable flag from false to true. | |
74 | |
75 var a = {}; | |
76 Object.defineProperty(a, 'b', | |
77 { get: function () { return 42; }, configurable: false }); | |
78 try { | |
79 a.__defineGetter__('b', function _b(){ return 'foo'; }); | |
80 assertUnreachable(); | |
81 } catch (e) { | |
82 assertTrue(/Cannot redefine property/.test(e)); | |
83 } | |
84 assertEquals(42, a.b); | |
85 var desc = Object.getOwnPropertyDescriptor(a, 'b'); | |
86 assertFalse(desc.configurable); | |
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