1 | 'use strict';
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2 |
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3 | const blockString = require('../../utils/blockString');
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4 | const hasBlock = require('../../utils/hasBlock');
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5 | const hasEmptyBlock = require('../../utils/hasEmptyBlock');
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6 | const report = require('../../utils/report');
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7 | const ruleMessages = require('../../utils/ruleMessages');
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8 | const validateOptions = require('../../utils/validateOptions');
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9 | const whitespaceChecker = require('../../utils/whitespaceChecker');
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10 |
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11 | const ruleName = 'block-closing-brace-space-before';
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12 |
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13 | const messages = ruleMessages(ruleName, {
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14 | expectedBefore: () => 'Expected single space before "}"',
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15 | rejectedBefore: () => 'Unexpected whitespace before "}"',
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16 | expectedBeforeSingleLine: () => 'Expected single space before "}" of a single-line block',
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17 | rejectedBeforeSingleLine: () => 'Unexpected whitespace before "}" of a single-line block',
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18 | expectedBeforeMultiLine: () => 'Expected single space before "}" of a multi-line block',
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19 | rejectedBeforeMultiLine: () => 'Unexpected whitespace before "}" of a multi-line block',
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20 | });
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21 |
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22 | function rule(expectation, options, context) {
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23 | const checker = whitespaceChecker('space', expectation, messages);
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24 |
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25 | return (root, result) => {
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26 | const validOptions = validateOptions(result, ruleName, {
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27 | actual: expectation,
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28 | possible: [
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29 | 'always',
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30 | 'never',
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31 | 'always-single-line',
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32 | 'never-single-line',
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33 | 'always-multi-line',
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34 | 'never-multi-line',
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35 | ],
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36 | });
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37 |
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38 | if (!validOptions) {
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39 | return;
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40 | }
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41 |
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42 |
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43 | root.walkRules(check);
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44 | root.walkAtRules(check);
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45 |
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46 | function check(statement) {
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47 |
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48 | if (!hasBlock(statement) || hasEmptyBlock(statement)) {
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49 | return;
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50 | }
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51 |
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52 | const source = blockString(statement);
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53 | const statementString = statement.toString();
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54 |
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55 | let index = statementString.length - 2;
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56 |
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57 | if (statementString[index - 1] === '\r') {
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58 | index -= 1;
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59 | }
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60 |
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61 | checker.before({
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62 | source,
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63 | index: source.length - 1,
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64 | err: (msg) => {
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65 | if (context.fix) {
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66 | if (expectation.startsWith('always')) {
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67 | statement.raws.after = statement.raws.after.replace(/\s*$/, ' ');
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68 |
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69 | return;
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70 | }
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71 |
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72 | if (expectation.startsWith('never')) {
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73 | statement.raws.after = statement.raws.after.replace(/\s*$/, '');
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74 |
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75 | return;
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76 | }
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77 | }
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78 |
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79 | report({
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80 | message: msg,
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81 | node: statement,
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82 | index,
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83 | result,
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84 | ruleName,
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85 | });
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86 | },
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87 | });
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88 | }
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89 | };
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90 | }
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91 |
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92 | rule.ruleName = ruleName;
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93 | rule.messages = messages;
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94 | module.exports = rule;
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