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Issue 1815773002: Remove runtime flags for Proxy and Reflect (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Rebased Created 4 years, 9 months ago
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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
5 // Flags: --harmony-proxies --harmony-reflect
6
7
8 (function () {
9 // No trap.
10
11 var target = {};
12 var handler = {};
13 var proxy = new Proxy(target, handler);
14
15 assertTrue(Reflect.isExtensible(target));
16 assertTrue(Reflect.isExtensible(proxy));
17 assertTrue(Reflect.preventExtensions(proxy));
18 assertFalse(Reflect.isExtensible(target));
19 assertFalse(Reflect.isExtensible(proxy));
20 })();
21
22
23 (function () {
24 // "Undefined" trap.
25
26 var target = {};
27 var handler = { preventExtensions: null };
28 var proxy = new Proxy(target, handler);
29
30 assertTrue(Reflect.isExtensible(target));
31 assertTrue(Reflect.isExtensible(proxy));
32 assertTrue(Reflect.preventExtensions(proxy));
33 assertFalse(Reflect.isExtensible(target));
34 assertFalse(Reflect.isExtensible(proxy));
35 })();
36
37
38 (function () {
39 // Invalid trap.
40
41 var target = {};
42 var handler = { preventExtensions: 42 };
43 var proxy = new Proxy(target, handler);
44
45 assertThrows(() => {Reflect.preventExtensions(proxy)}, TypeError);
46 })();
47
48
49 (function () {
50 var target = {};
51 var handler = { isExtensible() {return "bla"} };
52 var proxy = new Proxy(target, handler);
53
54 // Trap returns trueish and target is extensible.
55 assertTrue(Reflect.isExtensible(proxy));
56
57 // Trap returns trueish but target is not extensible.
58 Reflect.preventExtensions(target);
59 assertThrows(() => {Reflect.isExtensible(proxy)}, TypeError);
60 })();
61
62
63 (function () {
64 // Trap returns falsish.
65
66 var target = {};
67 var handler = { preventExtensions() {return 0} };
68 var proxy = new Proxy(target, handler);
69
70 assertFalse(Reflect.preventExtensions(proxy));
71 Reflect.preventExtensions(target);
72 assertFalse(Reflect.preventExtensions(proxy));
73 })();
74
75
76 (function () {
77 var target = {};
78 var handler = { preventExtensions() {return Symbol()} };
79 var proxy = new Proxy(target, handler);
80
81 // Trap returns trueish but target is extensible.
82 assertThrows(() => {Reflect.preventExtensions(proxy)}, TypeError);
83
84 // Trap returns trueish and target is not extensible.
85 Reflect.preventExtensions(target);
86 assertTrue(Reflect.preventExtensions(proxy));
87 })();
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