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- // @ts-nocheck
-
- 'use strict';
-
- const isContextFunctionalPseudoClass = require('../../utils/isContextFunctionalPseudoClass');
- const isNonNegativeInteger = require('../../utils/isNonNegativeInteger');
- const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
- const keywordSets = require('../../reference/keywordSets');
- const parseSelector = require('../../utils/parseSelector');
- const report = require('../../utils/report');
- const resolvedNestedSelector = require('postcss-resolve-nested-selector');
- const ruleMessages = require('../../utils/ruleMessages');
- const validateOptions = require('../../utils/validateOptions');
-
- const ruleName = 'selector-max-pseudo-class';
-
- const messages = ruleMessages(ruleName, {
- expected: (selector, max) =>
- `Expected "${selector}" to have no more than ${max} pseudo-${max === 1 ? 'class' : 'classes'}`,
- });
-
- function rule(max) {
- return (root, result) => {
- const validOptions = validateOptions(result, ruleName, {
- actual: max,
- possible: isNonNegativeInteger,
- });
-
- if (!validOptions) {
- return;
- }
-
- function checkSelector(selectorNode, ruleNode) {
- const count = selectorNode.reduce((total, childNode) => {
- // Only traverse inside actual selectors and context functional pseudo-classes
- if (childNode.type === 'selector' || isContextFunctionalPseudoClass(childNode)) {
- checkSelector(childNode, ruleNode);
- }
-
- // Exclude pseudo elements from the count
- if (
- childNode.type === 'pseudo' &&
- (childNode.value.includes('::') ||
- keywordSets.levelOneAndTwoPseudoElements.has(childNode.value.toLowerCase().slice(1)))
- ) {
- return total;
- }
-
- if (childNode.type === 'pseudo') {
- return (total += 1);
- }
-
- return total;
- }, 0);
-
- if (count > max) {
- report({
- ruleName,
- result,
- node: ruleNode,
- message: messages.expected(selectorNode, max),
- word: selectorNode,
- });
- }
- }
-
- root.walkRules((ruleNode) => {
- if (!isStandardSyntaxRule(ruleNode)) {
- return;
- }
-
- ruleNode.selectors.forEach((selector) => {
- resolvedNestedSelector(selector, ruleNode).forEach((resolvedSelector) => {
- parseSelector(resolvedSelector, result, rule, (selectorTree) => {
- checkSelector(selectorTree, ruleNode);
- });
- });
- });
- });
- };
- }
-
- rule.ruleName = ruleName;
- rule.messages = messages;
- module.exports = rule;
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