| 'use strict'; |
| |
| const { isComment, hasSource } = require('./typeGuards'); |
| |
| /** |
| * @param {import('postcss').Node} statement |
| * @returns {boolean} |
| */ |
| module.exports = function (statement) { |
| const parentNode = statement.parent; |
| |
| if (parentNode === undefined || parentNode.type === 'root') { |
| return false; |
| } |
| |
| if (statement === parentNode.first) { |
| return true; |
| } |
| |
| /* |
| * Search for the statement in the parent's nodes, ignoring comment |
| * nodes on the same line as the parent's opening brace. |
| */ |
| |
| const parentNodes = parentNode.nodes; |
| |
| if (!parentNodes) { |
| return false; |
| } |
| |
| const firstNode = parentNodes[0]; |
| |
| if ( |
| !isComment(firstNode) || |
| (typeof firstNode.raws.before === 'string' && firstNode.raws.before.includes('\n')) |
| ) { |
| return false; |
| } |
| |
| if (!hasSource(firstNode) || !firstNode.source.start) { |
| return false; |
| } |
| |
| const openingBraceLine = firstNode.source.start.line; |
| |
| if (!firstNode.source.end || openingBraceLine !== firstNode.source.end.line) { |
| return false; |
| } |
| |
| for (let i = 1; i < parentNodes.length; i++) { |
| const node = parentNodes[i]; |
| |
| if (node === statement) { |
| return true; |
| } |
| |
| if ( |
| !isComment(node) || |
| (hasSource(node) && node.source.end && node.source.end.line !== openingBraceLine) |
| ) { |
| return false; |
| } |
| } |
| |
| /* istanbul ignore next: Should always return in the loop */ |
| return false; |
| }; |