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
|
function f1(a, aIs, // without default parameter
b=()=>62, bIs, // with default parameter
// before function body
c=(assertEq(a(), aIs), assertEq(b(), bIs),
()=>63),
cIs) {
// before function declarations
assertEq(a(), 52);
assertEq(b(), 53);
assertEq(c(), 55);
function a() {
return 52;
}
function b() {
return 53;
}
function c() {
return 54;
}
assertEq(a(), 52); // after function declaration
assertEq(b(), 53); // after function declaration
assertEq(c(), 55); // before last function declaration
c = ()=>72;
assertEq(c(), 72); // after assignment in body
// function re-declaration after assignment
function c() {
return 55;
}
}
f1(()=>42, 42, undefined, 62, undefined, 63);
f1(()=>42, 42, undefined, 62, ()=>44, 44);
f1(()=>42, 42, ()=>43, 43, undefined, 63);
f1(()=>42, 42, ()=>43, 43, ()=>44, 44);
function f2(a,
// assignment before body
b=a=()=>62,
c=(assertEq(a(), 62)),
// eval in defaults exprs get own var envs
d=eval("function a() { return 72; }"),
e=(assertEq(a(), 62))) {
function a() {
return 52;
}
assertEq(a(), 52);
}
f2(()=>42);
function f3(a, b, c, d) {
// before var/function declarations
assertEq(a(), 52);
assertEq(b(), 53);
assertEq(c(), 54);
assertEq(d(), 55);
var a, b = ()=>63;
var c, d = ()=>65;
// after var declarations, before function declarations
assertEq(a(), 52);
assertEq(b(), 63);
assertEq(c(), 54);
assertEq(d(), 65);
function a() {
return 52;
}
function b() {
return 53;
}
function c() {
return 54;
}
function d() {
return 55;
}
// after var/function declarations
assertEq(a(), 52);
assertEq(b(), 63);
assertEq(c(), 54);
assertEq(d(), 65);
}
f3(()=>42, ()=>43, ()=>44, ()=>45);
|
