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'use strict'; /** * @param {import('postcss').AnyNode} nodeA * @param {import('postcss').AnyNode} nodeB * @return {boolean} */ function checkMatch(nodeA, nodeB) { if (nodeA.type === 'atrule' && nodeB.type === 'atrule') { return ( nodeA.params === nodeB.params && nodeA.name.toLowerCase() === nodeB.name.toLowerCase() ); } return nodeA.type === nodeB.type; } /** @typedef {import('postcss').AnyNode & {parent?: Child}} Child */ /** * @param {Child} nodeA * @param {Child} nodeB * @return {boolean} */ function sameParent(nodeA, nodeB) { if (!nodeA.parent) { // A is orphaned, return if B is orphaned as well return !nodeB.parent; } if (!nodeB.parent) { // B is orphaned and A is not return false; } // Check if parents match if (!checkMatch(nodeA.parent, nodeB.parent)) { return false; } // Check parents' parents return sameParent(nodeA.parent, nodeB.parent); } module.exports = sameParent;