Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 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 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | // Test that traps that involve walking the target object's prototype chain |
| 6 | // don't overflow the stack when the original proxy is on that chain. |
| 7 | |
| 8 | (function TestGetPrototype() { |
| 9 | var p = new Proxy({}, {}); |
| 10 | p.__proto__ = p; |
| 11 | try { return p.__proto__; } catch(e) { assertInstanceof(e, RangeError); } |
| 12 | })(); |
| 13 | |
| 14 | (function TestSetPrototype() { |
| 15 | var p = new Proxy({}, {}); |
| 16 | p.__proto__ = p; |
| 17 | try { p.__proto__ = p; } catch(e) { assertInstanceof(e, RangeError); } |
| 18 | })(); |
| 19 | |
| 20 | (function TestHasProperty() { |
| 21 | var p = new Proxy({}, {}); |
| 22 | p.__proto__ = p; |
| 23 | try { |
| 24 | return Reflect.has(p, "foo"); |
| 25 | } catch(e) { assertInstanceof(e, RangeError); } |
| 26 | })(); |
| 27 | |
| 28 | (function TestSet() { |
| 29 | var p = new Proxy({}, {}); |
| 30 | p.__proto__ = p; |
| 31 | try { p.foo = 1; } catch(e) { assertInstanceof(e, RangeError); } |
| 32 | })(); |
| 33 | |
| 34 | (function TestGet() { |
| 35 | var p = new Proxy({}, {}); |
| 36 | p.__proto__ = p; |
| 37 | try { return p.foo; } catch(e) { assertInstanceof(e, RangeError); } |
| 38 | })(); |
| 39 | |
| 40 | (function TestEnumerate() { |
| 41 | var p = new Proxy({}, {}); |
| 42 | p.__proto__ = p; |
| 43 | try { for (var x in p) {} } catch(e) { assertInstanceof(e, RangeError); } |
| 44 | })(); |
| 45 | |
| 46 | // The following traps don't involve the target object's prototype chain; |
| 47 | // we test them anyway for completeness. |
| 48 | |
| 49 | (function TestIsExtensible() { |
| 50 | var p = new Proxy({}, {}); |
| 51 | p.__proto__ = p; |
| 52 | return Reflect.isExtensible(p); |
| 53 | })(); |
| 54 | |
| 55 | (function TestPreventExtensions() { |
| 56 | var p = new Proxy({}, {}); |
| 57 | p.__proto__ = p; |
| 58 | Reflect.preventExtensions(p); |
| 59 | })(); |
| 60 | |
| 61 | (function TestGetOwnPropertyDescriptor() { |
| 62 | var p = new Proxy({}, {}); |
| 63 | p.__proto__ = p; |
| 64 | return Object.getOwnPropertyDescriptor(p, "foo"); |
| 65 | })(); |
| 66 | |
| 67 | (function TestDeleteProperty() { |
| 68 | var p = new Proxy({}, {}); |
| 69 | p.__proto__ = p; |
| 70 | delete p.foo; |
| 71 | })(); |
| 72 | |
| 73 | (function TestDefineProperty() { |
| 74 | var p = new Proxy({}, {}); |
| 75 | p.__proto__ = p; |
| 76 | Object.defineProperty(p, "foo", {value: "bar"}); |
| 77 | })(); |
| 78 | |
| 79 | (function TestOwnKeys() { |
| 80 | var p = new Proxy({}, {}); |
| 81 | p.__proto__ = p; |
| 82 | return Reflect.ownKeys(p); |
| 83 | })(); |
| 84 | |
| 85 | (function TestCall() { |
| 86 | var p = new Proxy(function() {}, {}); |
| 87 | p.__proto__ = p; |
| 88 | return p(); |
| 89 | })(); |
| 90 | |
| 91 | (function TestConstruct() { |
| 92 | var p = new Proxy(function() { this.foo = 1; }, {}); |
| 93 | p.__proto__ = p; |
| 94 | return new p(); |
| 95 | })(); |