| 'use strict'; |
| |
| const addEmptyLineAfter = require('../../utils/addEmptyLineAfter'); |
| const blockString = require('../../utils/blockString'); |
| const hasBlock = require('../../utils/hasBlock'); |
| const hasEmptyBlock = require('../../utils/hasEmptyBlock'); |
| const hasEmptyLine = require('../../utils/hasEmptyLine'); |
| const isSingleLineString = require('../../utils/isSingleLineString'); |
| const optionsMatches = require('../../utils/optionsMatches'); |
| const removeEmptyLinesAfter = require('../../utils/removeEmptyLinesAfter'); |
| const report = require('../../utils/report'); |
| const ruleMessages = require('../../utils/ruleMessages'); |
| const validateOptions = require('../../utils/validateOptions'); |
| |
| const ruleName = 'block-closing-brace-empty-line-before'; |
| |
| const messages = ruleMessages(ruleName, { |
| expected: 'Expected empty line before closing brace', |
| rejected: 'Unexpected empty line before closing brace', |
| }); |
| |
| /** @type {import('stylelint').Rule} */ |
| const rule = (primary, secondaryOptions, context) => { |
| return (root, result) => { |
| const validOptions = validateOptions( |
| result, |
| ruleName, |
| { |
| actual: primary, |
| possible: ['always-multi-line', 'never'], |
| }, |
| { |
| actual: secondaryOptions, |
| possible: { |
| except: ['after-closing-brace'], |
| }, |
| optional: true, |
| }, |
| ); |
| |
| if (!validOptions) { |
| return; |
| } |
| |
| // Check both kinds of statements: rules and at-rules |
| root.walkRules(check); |
| root.walkAtRules(check); |
| |
| /** |
| * @param {import('postcss').Rule | import('postcss').AtRule} statement |
| */ |
| function check(statement) { |
| // Return early if blockless or has empty block |
| if (!hasBlock(statement) || hasEmptyBlock(statement)) { |
| return; |
| } |
| |
| // Get whitespace after ""}", ignoring extra semicolon |
| const before = (statement.raws.after || '').replace(/;+/, ''); |
| |
| // Calculate index |
| const statementString = statement.toString(); |
| let index = statementString.length - 1; |
| |
| if (statementString[index - 1] === '\r') { |
| index -= 1; |
| } |
| |
| // Set expectation |
| const expectEmptyLineBefore = (() => { |
| const childNodeTypes = statement.nodes.map((item) => item.type); |
| |
| // Reverse the primary options if `after-closing-brace` is set |
| if ( |
| optionsMatches(secondaryOptions, 'except', 'after-closing-brace') && |
| statement.type === 'atrule' && |
| !childNodeTypes.includes('decl') |
| ) { |
| return primary === 'never'; |
| } |
| |
| return primary === 'always-multi-line' && !isSingleLineString(blockString(statement)); |
| })(); |
| |
| // Check for at least one empty line |
| const hasEmptyLineBefore = hasEmptyLine(before); |
| |
| // Return if the expectation is met |
| if (expectEmptyLineBefore === hasEmptyLineBefore) { |
| return; |
| } |
| |
| if (context.fix) { |
| const { newline } = context; |
| |
| if (typeof newline !== 'string') return; |
| |
| if (expectEmptyLineBefore) { |
| addEmptyLineAfter(statement, newline); |
| } else { |
| removeEmptyLinesAfter(statement, newline); |
| } |
| |
| return; |
| } |
| |
| const message = expectEmptyLineBefore ? messages.expected : messages.rejected; |
| |
| report({ |
| message, |
| result, |
| ruleName, |
| node: statement, |
| index, |
| }); |
| } |
| }; |
| }; |
| |
| rule.ruleName = ruleName; |
| rule.messages = messages; |
| module.exports = rule; |