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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 multiple spaces between inline JSX props',
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18 | category: 'Stylistic Issues',
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19 | recommended: false,
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20 | url: docsUrl('jsx-props-no-multi-spaces')
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21 | },
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22 | fixable: 'code',
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23 | schema: []
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24 | },
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25 |
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26 | create(context) {
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27 | function getPropName(propNode) {
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28 | switch (propNode.type) {
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29 | case 'JSXSpreadAttribute':
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30 | return context.getSourceCode().getText(propNode.argument);
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31 | case 'JSXIdentifier':
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32 | return propNode.name;
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33 | case 'JSXMemberExpression':
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34 | return `${getPropName(propNode.object)}.${propNode.property.name}`;
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35 | default:
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36 | return propNode.name.name;
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37 | }
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38 | }
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39 |
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40 | function checkSpacing(prev, node) {
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41 | if (prev.loc.end.line !== node.loc.end.line) {
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42 | return;
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43 | }
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44 | const between = context.getSourceCode().text.slice(prev.range[1], node.range[0]);
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45 | if (between !== ' ') {
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46 | context.report({
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47 | node,
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48 | message: `Expected only one space between "${getPropName(prev)}" and "${getPropName(node)}"`,
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49 | fix(fixer) {
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50 | return fixer.replaceTextRange([prev.range[1], node.range[0]], ' ');
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51 | }
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52 | });
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53 | }
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54 | }
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55 |
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56 | function containsGenericType(node) {
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57 | const containsTypeParams = typeof node.typeParameters !== 'undefined';
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58 | return containsTypeParams && node.typeParameters.type === 'TSTypeParameterInstantiation';
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59 | }
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60 |
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61 | function getGenericNode(node) {
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62 | const name = node.name;
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63 | if (containsGenericType(node)) {
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64 | const type = node.typeParameters;
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65 |
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66 | return Object.assign(
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67 | {},
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68 | node,
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69 | {
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70 | range: [
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71 | name.range[0],
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72 | type.range[1]
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73 | ]
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74 | }
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75 | );
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76 | }
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77 |
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78 | return name;
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79 | }
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80 |
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81 | return {
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82 | JSXOpeningElement(node) {
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83 | node.attributes.reduce((prev, prop) => {
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84 | checkSpacing(prev, prop);
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85 | return prop;
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86 | }, getGenericNode(node));
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87 | }
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88 | };
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89 | }
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90 | };
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