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- // @ts-nocheck
-
- 'use strict';
-
- const blockString = require('../../utils/blockString');
- const hasBlock = require('../../utils/hasBlock');
- const hasEmptyBlock = require('../../utils/hasEmptyBlock');
- const isSingleLineString = require('../../utils/isSingleLineString');
- const report = require('../../utils/report');
- const ruleMessages = require('../../utils/ruleMessages');
- const validateOptions = require('../../utils/validateOptions');
-
- const ruleName = 'block-closing-brace-newline-before';
-
- const messages = ruleMessages(ruleName, {
- expectedBefore: 'Expected newline before "}"',
- expectedBeforeMultiLine: 'Expected newline before "}" of a multi-line block',
- rejectedBeforeMultiLine: 'Unexpected whitespace before "}" of a multi-line block',
- });
-
- function rule(expectation, options, context) {
- return (root, result) => {
- const validOptions = validateOptions(result, ruleName, {
- actual: expectation,
- possible: ['always', 'always-multi-line', 'never-multi-line'],
- });
-
- if (!validOptions) {
- return;
- }
-
- // Check both kinds of statements: rules and at-rules
- root.walkRules(check);
- root.walkAtRules(check);
-
- function check(statement) {
- // Return early if blockless or has empty block
- if (!hasBlock(statement) || hasEmptyBlock(statement)) {
- return;
- }
-
- // Ignore extra semicolon
- const after = (statement.raws.after || '').replace(/;+/, '');
-
- if (after === undefined) {
- return;
- }
-
- const blockIsMultiLine = !isSingleLineString(blockString(statement));
- const statementString = statement.toString();
-
- let index = statementString.length - 2;
-
- if (statementString[index - 1] === '\r') {
- index -= 1;
- }
-
- // We're really just checking whether a
- // newline *starts* the block's final space -- between
- // the last declaration and the closing brace. We can
- // ignore any other whitespace between them, because that
- // will be checked by the indentation rule.
- if (!after.startsWith('\n') && !after.startsWith('\r\n')) {
- if (expectation === 'always') {
- complain(messages.expectedBefore);
- } else if (blockIsMultiLine && expectation === 'always-multi-line') {
- complain(messages.expectedBeforeMultiLine);
- }
- }
-
- if (after !== '' && blockIsMultiLine && expectation === 'never-multi-line') {
- complain(messages.rejectedBeforeMultiLine);
- }
-
- function complain(message) {
- if (context.fix) {
- if (expectation.startsWith('always')) {
- const firstWhitespaceIndex = statement.raws.after.search(/\s/);
- const newlineBefore =
- firstWhitespaceIndex >= 0
- ? statement.raws.after.slice(0, firstWhitespaceIndex)
- : statement.raws.after;
- const newlineAfter =
- firstWhitespaceIndex >= 0 ? statement.raws.after.slice(firstWhitespaceIndex) : '';
- const newlineIndex = newlineAfter.search(/\r?\n/);
-
- if (newlineIndex >= 0) {
- statement.raws.after = newlineBefore + newlineAfter.slice(newlineIndex);
- } else {
- statement.raws.after = newlineBefore + context.newline + newlineAfter;
- }
-
- return;
- }
-
- if (expectation === 'never-multi-line') {
- statement.raws.after = statement.raws.after.replace(/\s/g, '');
-
- return;
- }
- }
-
- report({
- message,
- result,
- ruleName,
- node: statement,
- index,
- });
- }
- }
- };
- }
-
- rule.ruleName = ruleName;
- rule.messages = messages;
- module.exports = rule;
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