/
index.js
135 lines (113 loc) · 3.41 KB
/
index.js
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
'use strict';
const _ = require('lodash');
const atRuleParamIndex = require('../../utils/atRuleParamIndex');
const declarationValueIndex = require('../../utils/declarationValueIndex');
const getUnitFromValueNode = require('../../utils/getUnitFromValueNode');
const keywordSets = require('../../reference/keywordSets');
const mediaParser = require('postcss-media-query-parser').default;
const optionsMatches = require('../../utils/optionsMatches');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const valueParser = require('postcss-value-parser');
const ruleName = 'unit-no-unknown';
const messages = ruleMessages(ruleName, {
rejected: (unit) => `Unexpected unknown unit "${unit}"`,
});
const rule = function(actual, options) {
return (root, result) => {
const validOptions = validateOptions(
result,
ruleName,
{ actual },
{
actual: options,
possible: {
ignoreUnits: [_.isString, _.isRegExp],
ignoreFunctions: [_.isString, _.isRegExp],
},
optional: true,
},
);
if (!validOptions) {
return;
}
function check(node, value, getIndex) {
// make sure multiplication operations (*) are divided - not handled
// by postcss-value-parser
value = value.replace(/\*/g, ',');
const parsedValue = valueParser(value);
parsedValue.walk(function(valueNode) {
// Ignore wrong units within `url` function
// and within functions listed in the `ignoreFunctions` option
if (
valueNode.type === 'function' &&
(valueNode.value.toLowerCase() === 'url' ||
optionsMatches(options, 'ignoreFunctions', valueNode.value))
) {
return false;
}
const unit = getUnitFromValueNode(valueNode);
if (!unit) {
return;
}
if (optionsMatches(options, 'ignoreUnits', unit)) {
return;
}
if (keywordSets.units.has(unit.toLowerCase()) && unit.toLowerCase() !== 'x') {
return;
}
if (unit.toLowerCase() === 'x') {
if (
node.type === 'atrule' &&
node.name === 'media' &&
node.params.toLowerCase().includes('resolution')
) {
let ignoreUnit = false;
mediaParser(node.params).walk((mediaNode, i, mediaNodes) => {
if (
mediaNode.value.toLowerCase().includes('resolution') &&
_.last(mediaNodes).sourceIndex === valueNode.sourceIndex
) {
ignoreUnit = true;
return false;
}
});
if (ignoreUnit) {
return;
}
}
if (node.type === 'decl') {
if (node.prop.toLowerCase() === 'image-resolution') {
return;
}
if (/^image-set/i.test(value)) {
const imageSet = parsedValue.nodes.find((node) => node.value === 'image-set');
const imageSetValueLastIndex = _.last(imageSet.nodes).sourceIndex;
if (imageSetValueLastIndex >= valueNode.sourceIndex) {
return;
}
}
}
}
report({
index: getIndex(node) + valueNode.sourceIndex,
message: messages.rejected(unit),
node,
result,
ruleName,
});
});
}
root.walkAtRules((atRule) => {
if (!/^media$/i.test(atRule.name) && !atRule.variable) {
return;
}
check(atRule, atRule.params, atRuleParamIndex);
});
root.walkDecls((decl) => check(decl, decl.value, declarationValueIndex));
};
};
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;