1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
load(libdir + 'asserts.js');
load(libdir + 'iteration.js');
function f(v)
{
if (v + "")
({} = v);
}
f(true);
f({});
assertThrowsInstanceOf(() => f(null), TypeError);
assertThrowsInstanceOf(() => f(undefined), TypeError);
function g(v)
{
if (v + "")
({} = v);
}
g(true);
g({});
assertThrowsInstanceOf(() => g(undefined), TypeError);
assertThrowsInstanceOf(() => g(null), TypeError);
function h(v)
{
if (v + "")
([] = v);
}
h([true]);
h("foo");
assertThrowsInstanceOf(() => h(undefined), TypeError);
assertThrowsInstanceOf(() => h(null), TypeError);
Object.defineProperty(Boolean.prototype, "v",
{ get() { "use strict"; return typeof this; },
enumerable: true,
configurable: true });
Object.defineProperty(Number.prototype, "v",
{ get() { "use strict"; return typeof this; },
enumerable: true,
configurable: true });
Object.defineProperty(String.prototype, "v",
{ get() { "use strict"; return typeof this; },
enumerable: true,
configurable: true });
Object.defineProperty(Symbol.prototype, "v",
{ get() { "use strict"; return typeof this; },
enumerable: true,
configurable: true });
function primitiveThisSupported()
{
return 3.14.custom === "number";
}
function primitiveThisTests()
{
function f(v)
{
var type = typeof v;
({ v } = v);
assertEq(v, type);
}
f(true);
f(3.14);
f(72);
f("ohai");
f(Symbol.iterator);
assertThrowsInstanceOf(() => f(undefined), TypeError);
assertThrowsInstanceOf(() => f(null), TypeError);
function g(v)
{
var type = typeof v;
({ v } = v);
assertEq(v, type);
}
g(true);
g(3.14);
g(72);
g("ohai");
g(Symbol.iterator);
assertThrowsInstanceOf(() => g(null), TypeError);
assertThrowsInstanceOf(() => g(undefined), TypeError);
}
if (primitiveThisSupported())
primitiveThisTests();
// Ensure the internal implementation of destructuring object pattern
// assignment -- using a self-hosted intrinsic function -- works even when lazy
// standard class initialization hasn't occurred. Unfortunately we can't use
// |newGlobal()| because that method eagerly initializes standard classes.
evalcx("({} = 1);", evalcx("lazy"));
|
