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
|
// Test various inlinable Object constructor calls.
function callNoArgs() {
for (let i = 0; i < 100; ++i) {
let obj = Object();
// Creates a new empty object.
assertEq(Reflect.getPrototypeOf(obj), Object.prototype);
assertEq(Reflect.ownKeys(obj).length, 0);
}
}
for (let i = 0; i < 2; ++i) callNoArgs();
function constructNoArgs() {
for (let i = 0; i < 100; ++i) {
let obj = new Object();
// Creates a new empty object.
assertEq(Reflect.getPrototypeOf(obj), Object.prototype);
assertEq(Reflect.ownKeys(obj).length, 0);
}
}
for (let i = 0; i < 2; ++i) constructNoArgs();
function funCallNoArgs() {
// NB: Function.prototype.call is only inlined when the thisValue argument is present.
const thisValue = null;
for (let i = 0; i < 100; ++i) {
let obj = Object.call(thisValue);
// Creates a new empty object.
assertEq(Reflect.getPrototypeOf(obj), Object.prototype);
assertEq(Reflect.ownKeys(obj).length, 0);
}
}
for (let i = 0; i < 2; ++i) funCallNoArgs();
function callObjectArg() {
let xs = [{}, {}];
for (let i = 0; i < 100; ++i) {
let x = xs[i & 1];
let obj = Object(x);
// Returns the input object.
assertEq(obj, x);
}
}
for (let i = 0; i < 2; ++i) callObjectArg();
function constructObjectArg() {
let xs = [{}, {}];
for (let i = 0; i < 100; ++i) {
let x = xs[i & 1];
let obj = new Object(x);
// Returns the input object.
assertEq(obj, x);
}
}
for (let i = 0; i < 2; ++i) constructObjectArg();
function funCallObjectArg() {
// NB: Function.prototype.call is only inlined when the thisValue argument is present.
const thisValue = null;
let xs = [{}, {}];
for (let i = 0; i < 100; ++i) {
let x = xs[i & 1];
let obj = Object.call(thisValue, x);
// Returns the input object.
assertEq(obj, x);
}
}
for (let i = 0; i < 2; ++i) funCallObjectArg();
|
