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 | "use strict"; |
| 6 | var global = this; |
| 7 | |
| 8 | (function TestGlobalReceiver() { |
| 9 | class A { |
| 10 | s(value) { |
| 11 | super.bla = value; |
| 12 | } |
| 13 | } |
| 14 | var a = new A(); |
| 15 | a.s(9); |
| 16 | assertEquals(undefined, global.bla); |
| 17 | assertEquals(9, a.bla); |
| 18 | |
| 19 | a = new A(); |
| 20 | a.s.call(global, 10); |
| 21 | assertEquals(10, global.bla); |
| 22 | assertEquals(undefined, a.bla); |
| 23 | })(); |
| 24 | |
| 25 | |
| 26 | (function TestProxyProto() { |
| 27 | var calls = 0; |
| 28 | var handler = { |
| 29 | set(t, p, v, r) { |
| 30 | calls++; |
| 31 | return Reflect.set(t, p, v, r); |
| 32 | }, |
| 33 | getPropertyDescriptor(target, name) { |
| 34 | calls += 10; |
| 35 | return undefined; |
| 36 | } |
| 37 | }; |
| 38 | var target = {}; |
| 39 | var proxy = new Proxy(target, handler); |
| 40 | var object = { |
| 41 | __proto__: proxy, |
| 42 | setX(v) { |
| 43 | super.x = v; |
| 44 | }, |
| 45 | setSymbol(sym, v) { |
| 46 | super[sym] = v; |
| 47 | } |
| 48 | }; |
| 49 | |
| 50 | object.setX(1); |
| 51 | assertEquals(1, object.x); |
| 52 | assertEquals(1, Object.getOwnPropertyDescriptor(object, 'x').value); |
| 53 | assertEquals(1, calls); |
| 54 | |
| 55 | calls = 0; |
| 56 | object.setX.call(proxy, 2); |
| 57 | assertEquals(2, target.x); |
| 58 | assertEquals(1, Object.getOwnPropertyDescriptor(object, 'x').value); |
| 59 | assertEquals(1, calls); |
| 60 | |
| 61 | var sym = Symbol(); |
| 62 | calls = 0; |
| 63 | object.setSymbol.call(global, sym, 2); |
| 64 | assertEquals(2, Object.getOwnPropertyDescriptor(global, sym).value); |
| 65 | // We currently do not invoke proxy traps for symbols |
| 66 | assertEquals(1, calls); |
| 67 | }); |
| 68 | |
| 69 | |
| 70 | (function TestProxyReceiver() { |
| 71 | var object = { |
| 72 | setY(v) { |
| 73 | super.y = v; |
| 74 | } |
| 75 | }; |
| 76 | |
| 77 | var calls = 0; |
| 78 | var target = {target:1}; |
| 79 | var handler = { |
| 80 | getOwnPropertyDescriptor(t, name) { |
| 81 | calls++; |
| 82 | }, |
| 83 | defineProperty(t, name, desc) { |
| 84 | calls += 10; |
| 85 | t[name] = desc.value; |
| 86 | return true; |
| 87 | }, |
| 88 | set(target, name, value) { |
| 89 | assertUnreachable(); |
| 90 | } |
| 91 | }; |
| 92 | var proxy = new Proxy(target, handler); |
| 93 | |
| 94 | assertEquals(undefined, object.y); |
| 95 | object.setY(10); |
| 96 | assertEquals(10, object.y); |
| 97 | |
| 98 | // Change the receiver to the proxy, but the set is called on the global. |
| 99 | object.setY.call(proxy, 3); |
| 100 | assertEquals(3, target.y); |
| 101 | assertEquals(11, calls); |
| 102 | })(); |