118 lines
2.9 KiB
JavaScript
118 lines
2.9 KiB
JavaScript
// @ts-nocheck
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'use strict';
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const _ = require('lodash');
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const isWhitespace = require('../../utils/isWhitespace');
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const report = require('../../utils/report');
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const ruleMessages = require('../../utils/ruleMessages');
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const validateOptions = require('../../utils/validateOptions');
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const ruleName = 'comment-whitespace-inside';
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const messages = ruleMessages(ruleName, {
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expectedOpening: 'Expected whitespace after "/*"',
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rejectedOpening: 'Unexpected whitespace after "/*"',
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expectedClosing: 'Expected whitespace before "*/"',
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rejectedClosing: 'Unexpected whitespace before "*/"',
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});
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function rule(expectation, options, context) {
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return function (root, result) {
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const validOptions = validateOptions(result, ruleName, {
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actual: expectation,
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possible: ['always', 'never'],
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});
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if (!validOptions) {
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return;
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}
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root.walkComments((comment) => {
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if (comment.raws.inline || comment.inline) {
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return;
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}
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const rawComment = comment.toString();
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const firstFourChars = rawComment.substr(0, 4);
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// Return early if sourcemap or copyright comment
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if (/^\/\*[#!]\s/.test(firstFourChars)) {
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return;
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}
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const leftMatches = rawComment.match(/(^\/\*+)(\s)?/);
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const rightMatches = rawComment.match(/(\s)?(\*+\/)$/);
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const opener = leftMatches[1];
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const leftSpace = leftMatches[2] || '';
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const rightSpace = rightMatches[1] || '';
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const closer = rightMatches[2];
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if (expectation === 'never' && leftSpace !== '') {
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complain(messages.rejectedOpening, opener.length);
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}
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if (expectation === 'always' && !isWhitespace(leftSpace)) {
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complain(messages.expectedOpening, opener.length);
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}
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if (expectation === 'never' && rightSpace !== '') {
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complain(messages.rejectedClosing, comment.toString().length - closer.length - 1);
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}
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if (expectation === 'always' && !isWhitespace(rightSpace)) {
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complain(messages.expectedClosing, comment.toString().length - closer.length - 1);
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}
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function addWhitespaceBefore(comment) {
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if (comment.text.startsWith('*')) {
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comment.text = comment.text.replace(/^(\*+)/, `$1 `);
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} else {
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comment.raws.left = ' ';
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}
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}
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function addWhitespaceAfter(comment) {
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if (_.last(comment.text) === '*') {
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comment.text = comment.text.replace(/(\*+)$/, ` $1`);
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} else {
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comment.raws.right = ' ';
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}
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}
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function complain(message, index) {
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if (context.fix) {
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if (expectation === 'never') {
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comment.raws.left = '';
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comment.raws.right = '';
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comment.text = comment.text.replace(/^(\*+)(\s+)?/, '$1').replace(/(\s+)?(\*+)$/, '$2');
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} else {
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if (!leftSpace) {
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addWhitespaceBefore(comment);
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}
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if (!rightSpace) {
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addWhitespaceAfter(comment);
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}
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}
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return;
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}
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report({
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message,
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index,
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result,
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ruleName,
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node: comment,
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});
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}
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});
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};
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}
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rule.ruleName = ruleName;
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rule.messages = messages;
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module.exports = rule;
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