/
index.js
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/
index.js
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'use strict';
const _ = require('lodash');
const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
const matchesStringOrRegExp = require('../../utils/matchesStringOrRegExp');
const parseSelector = require('../../utils/parseSelector');
const postcss = require('postcss');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const ruleName = 'selector-pseudo-element-blacklist';
const messages = ruleMessages(ruleName, {
rejected: (selector) => `Unexpected pseudo-element "${selector}"`,
});
const rule = function(blacklist) {
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: blacklist,
possible: [_.isString, _.isRegExp],
});
if (!validOptions) {
return;
}
root.walkRules((rule) => {
if (!isStandardSyntaxRule(rule)) {
return;
}
const selector = rule.selector;
if (!selector.includes('::')) {
return;
}
parseSelector(selector, result, rule, (selectorTree) => {
selectorTree.walkPseudos((pseudoNode) => {
const value = pseudoNode.value;
// Ignore pseudo-classes
if (value[1] !== ':') {
return;
}
const name = value.slice(2);
if (!matchesStringOrRegExp(postcss.vendor.unprefixed(name), blacklist)) {
return;
}
report({
index: pseudoNode.sourceIndex,
message: messages.rejected(name),
node: rule,
result,
ruleName,
});
});
});
});
};
};
rule.primaryOptionArray = true;
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;