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6 | 'use strict';
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7 |
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8 | const docsUrl = require('../util/docsUrl');
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9 |
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10 |
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11 |
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12 |
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13 |
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14 | module.exports = {
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15 | meta: {
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16 | docs: {
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17 | description: 'Disallow or enforce spaces around equal signs in JSX attributes',
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18 | category: 'Stylistic Issues',
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19 | recommended: false,
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20 | url: docsUrl('jsx-equals-spacing')
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21 | },
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22 | fixable: 'code',
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23 |
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24 | schema: [{
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25 | enum: ['always', 'never']
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26 | }]
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27 | },
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28 |
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29 | create(context) {
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30 | const config = context.options[0];
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31 |
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32 | |
33 |
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34 |
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35 |
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36 |
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37 | function hasEqual(attrNode) {
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38 | return attrNode.type !== 'JSXSpreadAttribute' && attrNode.value !== null;
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39 | }
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40 |
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41 |
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42 |
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43 |
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44 |
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45 | return {
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46 | JSXOpeningElement(node) {
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47 | node.attributes.forEach((attrNode) => {
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48 | if (!hasEqual(attrNode)) {
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49 | return;
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50 | }
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51 |
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52 | const sourceCode = context.getSourceCode();
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53 | const equalToken = sourceCode.getTokenAfter(attrNode.name);
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54 | const spacedBefore = sourceCode.isSpaceBetweenTokens(attrNode.name, equalToken);
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55 | const spacedAfter = sourceCode.isSpaceBetweenTokens(equalToken, attrNode.value);
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56 |
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57 | switch (config) {
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58 | default:
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59 | case 'never':
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60 | if (spacedBefore) {
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61 | context.report({
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62 | node: attrNode,
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63 | loc: equalToken.loc.start,
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64 | message: 'There should be no space before \'=\'',
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65 | fix(fixer) {
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66 | return fixer.removeRange([attrNode.name.range[1], equalToken.range[0]]);
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67 | }
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68 | });
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69 | }
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70 | if (spacedAfter) {
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71 | context.report({
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72 | node: attrNode,
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73 | loc: equalToken.loc.start,
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74 | message: 'There should be no space after \'=\'',
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75 | fix(fixer) {
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76 | return fixer.removeRange([equalToken.range[1], attrNode.value.range[0]]);
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77 | }
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78 | });
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79 | }
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80 | break;
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81 | case 'always':
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82 | if (!spacedBefore) {
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83 | context.report({
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84 | node: attrNode,
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85 | loc: equalToken.loc.start,
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86 | message: 'A space is required before \'=\'',
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87 | fix(fixer) {
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88 | return fixer.insertTextBefore(equalToken, ' ');
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89 | }
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90 | });
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91 | }
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92 | if (!spacedAfter) {
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93 | context.report({
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94 | node: attrNode,
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95 | loc: equalToken.loc.start,
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96 | message: 'A space is required after \'=\'',
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97 | fix(fixer) {
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98 | return fixer.insertTextAfter(equalToken, ' ');
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99 | }
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100 | });
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101 | }
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102 | break;
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103 | }
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104 | });
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105 | }
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106 | };
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107 | }
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108 | };
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