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'use strict';
const _ = require('lodash');
const isStandardSyntaxCombinator = require('../../utils/isStandardSyntaxCombinator');
const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
const parseSelector = require('../../utils/parseSelector');
const report = require('../../utils/report');
const ruleMessages = require('../../utils/ruleMessages');
const validateOptions = require('../../utils/validateOptions');
const ruleName = 'selector-combinator-whitelist';
const messages = ruleMessages(ruleName, {
rejected: (combinator) => `Unexpected combinator "${combinator}"`,
});
function rule(whitelist) {
return (root, result) => {
const validOptions = validateOptions(result, ruleName, {
actual: whitelist,
possible: [_.isString],
});
if (!validOptions) {
return;
}
root.walkRules((rule) => {
if (!isStandardSyntaxRule(rule)) {
return;
}
const selector = rule.selector;
parseSelector(selector, result, rule, (fullSelector) => {
fullSelector.walkCombinators((combinatorNode) => {
if (!isStandardSyntaxCombinator(combinatorNode)) {
return;
}
const value = normalizeCombinator(combinatorNode.value);
if (whitelist.includes(value)) {
return;
}
report({
result,
ruleName,
message: messages.rejected(value),
node: rule,
index: combinatorNode.sourceIndex,
});
});
});
});
};
}
function normalizeCombinator(value) {
return value.replace(/\s+/g, ' ');
}
rule.primaryOptionArray = true;
rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;
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