| 'use strict'; |
| |
| const beforeBlockString = require('../../utils/beforeBlockString'); |
| const blockString = require('../../utils/blockString'); |
| const hasBlock = require('../../utils/hasBlock'); |
| const hasEmptyBlock = require('../../utils/hasEmptyBlock'); |
| const report = require('../../utils/report'); |
| const ruleMessages = require('../../utils/ruleMessages'); |
| const validateOptions = require('../../utils/validateOptions'); |
| const whitespaceChecker = require('../../utils/whitespaceChecker'); |
| |
| const ruleName = 'block-opening-brace-newline-before'; |
| |
| const messages = ruleMessages(ruleName, { |
| expectedBefore: () => 'Expected newline before "{"', |
| expectedBeforeSingleLine: () => 'Expected newline before "{" of a single-line block', |
| rejectedBeforeSingleLine: () => 'Unexpected whitespace before "{" of a single-line block', |
| expectedBeforeMultiLine: () => 'Expected newline before "{" of a multi-line block', |
| rejectedBeforeMultiLine: () => 'Unexpected whitespace before "{" of a multi-line block', |
| }); |
| |
| /** @type {import('stylelint').Rule} */ |
| const rule = (primary, _secondaryOptions, context) => { |
| const checker = whitespaceChecker('newline', primary, messages); |
| |
| return (root, result) => { |
| const validOptions = validateOptions(result, ruleName, { |
| actual: primary, |
| possible: [ |
| 'always', |
| 'always-single-line', |
| 'never-single-line', |
| 'always-multi-line', |
| 'never-multi-line', |
| ], |
| }); |
| |
| if (!validOptions) { |
| return; |
| } |
| |
| // Check both kinds of statement: 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 an empty block |
| if (!hasBlock(statement) || hasEmptyBlock(statement)) { |
| return; |
| } |
| |
| const source = beforeBlockString(statement); |
| const beforeBraceNoRaw = beforeBlockString(statement, { |
| noRawBefore: true, |
| }); |
| |
| let index = beforeBraceNoRaw.length - 1; |
| |
| if (beforeBraceNoRaw[index - 1] === '\r') { |
| index -= 1; |
| } |
| |
| checker.beforeAllowingIndentation({ |
| lineCheckStr: blockString(statement), |
| source, |
| index: source.length, |
| err: (m) => { |
| if (context.fix) { |
| const statementRaws = statement.raws; |
| |
| if (typeof statementRaws.between !== 'string') return; |
| |
| if (primary.startsWith('always')) { |
| const spaceIndex = statementRaws.between.search(/\s+$/); |
| |
| if (spaceIndex >= 0) { |
| statement.raws.between = |
| statementRaws.between.slice(0, spaceIndex) + |
| context.newline + |
| statementRaws.between.slice(spaceIndex); |
| } else { |
| statementRaws.between += context.newline; |
| } |
| |
| return; |
| } |
| |
| if (primary.startsWith('never')) { |
| statementRaws.between = statementRaws.between.replace(/\s*$/, ''); |
| |
| return; |
| } |
| } |
| |
| report({ |
| message: m, |
| node: statement, |
| index, |
| result, |
| ruleName, |
| }); |
| }, |
| }); |
| } |
| }; |
| }; |
| |
| rule.ruleName = ruleName; |
| rule.messages = messages; |
| module.exports = rule; |