| // NOTICE: This file is generated by Rollup. To modify it, |
| // please instead edit the ESM counterpart and rebuild with Rollup (npm run build). |
| 'use strict'; |
| |
| const typeGuards = require('./typeGuards.cjs'); |
| |
| /** |
| * Find the at-rule in which a rule is nested. |
| * |
| * Returns `null` if the rule is not nested within an at-rule. |
| * |
| * @param {import('postcss').Rule} rule |
| * @returns {null | import('postcss').AtRule} |
| */ |
| function findAtRuleContext(rule) { |
| const parent = rule.parent; |
| |
| if (!parent) { |
| return null; |
| } |
| |
| if (typeGuards.isAtRule(parent)) { |
| return parent; |
| } |
| |
| if (typeGuards.isRule(parent)) { |
| return findAtRuleContext(parent); |
| } |
| |
| return null; |
| } |
| |
| module.exports = findAtRuleContext; |