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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // | 4 // |
5 // Flags: --harmony-classes --allow-natives-syntax | 5 // Flags: --allow-natives-syntax |
6 'use strict'; | 6 'use strict'; |
7 | 7 |
8 (function TestMaps() { | 8 (function TestMaps() { |
9 class Base {} | 9 class Base {} |
10 class Derived extends Base {} | 10 class Derived extends Base {} |
11 | 11 |
12 let d1 = new Derived(); | 12 let d1 = new Derived(); |
13 let d2 = new Derived(); | 13 let d2 = new Derived(); |
14 | 14 |
15 assertTrue(%HaveSameMap(d1, d2)); | 15 assertTrue(%HaveSameMap(d1, d2)); |
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59 assertSame(10, d1.byteLength); | 59 assertSame(10, d1.byteLength); |
60 | 60 |
61 Derived.__proto__ = F; | 61 Derived.__proto__ = F; |
62 called = 0; | 62 called = 0; |
63 let d2 = new Derived(); | 63 let d2 = new Derived(); |
64 assertSame(1, called); | 64 assertSame(1, called); |
65 assertThrows(function() { d2.byteLength; }, TypeError); | 65 assertThrows(function() { d2.byteLength; }, TypeError); |
66 | 66 |
67 assertFalse(%HaveSameMap(d1, d2)); | 67 assertFalse(%HaveSameMap(d1, d2)); |
68 }()); | 68 }()); |
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