122 lines
3.0 KiB
JavaScript
122 lines
3.0 KiB
JavaScript
// @ts-nocheck
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'use strict';
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const _ = require('lodash');
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const isKeyframeSelector = require('../../utils/isKeyframeSelector');
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const isStandardSyntaxRule = require('../../utils/isStandardSyntaxRule');
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const isStandardSyntaxSelector = require('../../utils/isStandardSyntaxSelector');
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const parseSelector = require('../../utils/parseSelector');
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const report = require('../../utils/report');
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const resolveNestedSelector = require('postcss-resolve-nested-selector');
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const ruleMessages = require('../../utils/ruleMessages');
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const validateOptions = require('../../utils/validateOptions');
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const ruleName = 'selector-class-pattern';
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const messages = ruleMessages(ruleName, {
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expected: (selectorValue) =>
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`Expected class selector ".${selectorValue}" to match specified pattern`,
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});
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function rule(pattern, options) {
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return (root, result) => {
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const validOptions = validateOptions(
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result,
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ruleName,
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{
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actual: pattern,
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possible: [_.isRegExp, _.isString],
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},
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{
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actual: options,
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possible: {
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resolveNestedSelectors: _.isBoolean,
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},
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optional: true,
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},
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);
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if (!validOptions) {
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return;
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}
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const shouldResolveNestedSelectors = _.get(options, 'resolveNestedSelectors');
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const normalizedPattern = _.isString(pattern) ? new RegExp(pattern) : pattern;
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root.walkRules((rule) => {
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const selector = rule.selector;
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const selectors = rule.selectors;
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if (!isStandardSyntaxRule(rule)) {
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return;
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}
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if (selectors.some((s) => isKeyframeSelector(s))) {
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return;
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}
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// Only bother resolving selectors that have an interpolating &
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if (shouldResolveNestedSelectors && hasInterpolatingAmpersand(selector)) {
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resolveNestedSelector(selector, rule).forEach((selector) => {
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if (!isStandardSyntaxSelector(selector)) {
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return;
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}
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parseSelector(selector, result, rule, (s) => checkSelector(s, rule));
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});
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} else {
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parseSelector(selector, result, rule, (s) => checkSelector(s, rule));
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}
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});
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function checkSelector(fullSelector, rule) {
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fullSelector.walkClasses((classNode) => {
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const value = classNode.value;
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const sourceIndex = classNode.sourceIndex;
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if (normalizedPattern.test(value)) {
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return;
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}
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report({
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result,
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ruleName,
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message: messages.expected(value),
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node: rule,
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index: sourceIndex,
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});
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});
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}
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};
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}
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// An "interpolating ampersand" means an "&" used to interpolate
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// within another simple selector, rather than an "&" that
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// stands on its own as a simple selector
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function hasInterpolatingAmpersand(selector) {
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for (let i = 0, l = selector.length; i < l; i++) {
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if (selector[i] !== '&') {
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continue;
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}
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if (selector[i - 1] !== undefined && !isCombinator(selector[i - 1])) {
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return true;
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}
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if (selector[i + 1] !== undefined && !isCombinator(selector[i + 1])) {
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return true;
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}
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}
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return false;
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}
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function isCombinator(x) {
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return /[\s+>~]/.test(x);
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}
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rule.ruleName = ruleName;
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rule.messages = messages;
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module.exports = rule;
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