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
|
'use strict';
const types = require('../../tokenizer/types.cjs');
function parseWithFallback(parse, fallback) {
return this.parseWithFallback(
() => {
try {
return parse.call(this);
} finally {
this.skipSC();
if (this.lookupNonWSType(0) !== types.RightParenthesis) {
this.error();
}
}
},
fallback || (() => this.Raw(null, true))
);
}
const parseFunctions = {
layer() {
this.skipSC();
const children = this.createList();
const node = parseWithFallback.call(this, this.Layer);
if (node.type !== 'Raw' || node.value !== '') {
children.push(node);
}
return children;
},
supports() {
this.skipSC();
const children = this.createList();
const node = parseWithFallback.call(
this,
this.Declaration,
() => parseWithFallback.call(this, () => this.Condition('supports'))
);
if (node.type !== 'Raw' || node.value !== '') {
children.push(node);
}
return children;
}
};
const importAtrule = {
parse: {
prelude() {
const children = this.createList();
switch (this.tokenType) {
case types.String:
children.push(this.String());
break;
case types.Url:
case types.Function:
children.push(this.Url());
break;
default:
this.error('String or url() is expected');
}
this.skipSC();
if (this.tokenType === types.Ident &&
this.cmpStr(this.tokenStart, this.tokenEnd, 'layer')) {
children.push(this.Identifier());
} else if (
this.tokenType === types.Function &&
this.cmpStr(this.tokenStart, this.tokenEnd, 'layer(')
) {
children.push(this.Function(null, parseFunctions));
}
this.skipSC();
if (this.tokenType === types.Function &&
this.cmpStr(this.tokenStart, this.tokenEnd, 'supports(')) {
children.push(this.Function(null, parseFunctions));
}
if (this.lookupNonWSType(0) === types.Ident ||
this.lookupNonWSType(0) === types.LeftParenthesis) {
children.push(this.MediaQueryList());
}
return children;
},
block: null
}
};
module.exports = importAtrule;
|